Automatic edge grinding device

Abstract

The utility model provides an automatic edging device which comprises an automatic edging mechanism and an automatic displacement mechanism, the automatic edging mechanism comprises a base and a polishing part which are connected through a connecting piece, and the position of the polishing part can be adjusted along with rotation of the base, so that a workpiece to be polished is automatically polished; the automatic displacement mechanism comprises a clamping assembly, a track, a power source and a positioning system and can achieve accurate grabbing and displacement of workpieces. And the automatic edge grinding mechanism is closely matched with the automatic displacement mechanism, so that full-process automatic edge grinding control of the molded tray is realized, the edge grinding efficiency is remarkably improved, and the device is green, safe and environment-friendly.

Description

[0001] The present application claims priority to Chinese prior application No. 2024212534600, filed on June 3, 2024; and Chinese prior application No. 2024112066234, filed on August 30, 2024; the contents of which are hereby incorporated by reference in their entirety as part of the present utility model. TECHNICAL FIELD

[0002] The utility model belongs to mechanical field, more particularly, relate to an automatic edge grinding device. BACKGROUND

[0003] As the most basic container equipment of container unit and unit logistics, pallets are closely related to the development of the logistics industry. In recent years, the logistics industry has grown steadily, and with the implementation of pallet transportation throughout the country, the pallet industry has also developed vigorously. As the main body of goods movement and handling, pallets are mainly used to protect goods and make goods transportation automated to improve the efficiency of goods circulation. In today's bulk commodity trade system, weight is often used as the unit of value measurement, such as goods weight, prevention of transportation vehicle overweight, real-time weight increase or decrease measurement during goods use, etc. This makes it possible to realize the visualization of goods weight, which greatly improves the efficiency of trade.

[0004] The full name of the molded pallet is a plant fiber molded flat industrial pallet. The raw materials commonly used in molded pallets are wood shavings, plant straw, bamboo, etc. It is a whole structure, and the panel and supporting feet are molded and formed at one time. The upper surface of the pallet plate is smooth and flat, which can meet the transportation of various goods, and the lower surface is provided with reinforcing ribs. The vertical and horizontal stress of the plate surface is balanced, and the distribution of nine feet can meet the four-way insertion of the forklift, which belongs to a flat four-way forking single pallet.

[0005] Because the raw materials for molded pallets come from recyclable resources such as straw, branches, wood chips, bamboo chips, and bamboo fertilizer, the production process usually uses hot pressing and other methods. The raw materials and processes are more environmentally friendly, so molded pallets are increasingly occupying the theme of the pallet market. The research on molded pallets is also becoming more and more intensive. How to better utilize environmentally friendly raw materials and how to improve the carrying capacity and strength of the pallet are the key research directions of molded pallets.

[0006] Compared with traditional plastic pallets or wooden pallets, the molded pallet has the advantages of environment-friendly material, simplified manufacturing process, low manufacturing cost, small environmental pollution in manufacturing process and less post-manufacturing treatment procedures. As for the pallet itself, the molded pallet has high compressive strength and good wear resistance due to the compaction treatment of waste material in the form of powder, and the compressive strength is higher than that of the plastic pallet. Compared with the traditional wooden pallet, the molded pallet undoubtedly has great advantages in material selection. The molded pallet is usually made of wood chips and other processing waste or crop waste such as straw. Compared with the wooden pallet which needs to cut trees for material, the molded pallet not only reduces the cost, but also meets the requirements of energy saving, environmental protection and protection of non-renewable resources.

[0007] After the molded pallet is pressed and formed, there are many burrs on the outer edge surface, and the edge grinding treatment is needed to obtain the final molded pallet product. At present, the grinding treatment of the molded pallet is still completed manually. The molded pallet is large in size, and manual processing is very time-consuming and labor-intensive, low in efficiency and high in cost. The dust pollution generated is harmful to the health of the operator, and the edge grinding effect has individual differences, which is not conducive to the quality control of the molded pallet. Therefore, it is urgent to find a method for automatically grinding the edge of the molded pallet to realize automatic control of the whole process of edge grinding. Practical new type content

[0008] To solve the above problems, the utility model provides an edge grinding device for molded pallet, including automatic edge grinding mechanism and automatic displacement mechanism, automatic edge grinding mechanism includes base and polishing part, through connecting piece connection, polishing part can adjust position with base's rotation, thereby realize automatic polishing to work piece of waiting for polishing, automatic displacement mechanism includes clamping assembly, track, power source and positioning system group composition, can realize accurate capture, shift of work piece, automatic edge grinding mechanism and automatic displacement mechanism's close cooperation, realized the whole process automatic edge grinding control of molded pallet, improved edge grinding efficiency significantly, green safe environmental protection.

[0009] In one aspect, the utility model provides an automatic edge grinding device, the automatic edge grinding device includes automatic edge grinding mechanism and automatic displacement mechanism, the automatic edge grinding mechanism is used to automatically polish work piece of waiting for polishing, the automatic displacement mechanism is used to place work piece of waiting for polishing to automatic edge grinding mechanism, or remove work piece of completing polishing from automatic edge grinding mechanism.

[0010] In order to realize the whole process automatic edge grinding, not only need to provide accurate and stable automatic polishing function for the workpiece, but also important to realize the automatic displacement of the workpiece, because the workpiece can be accurately placed in the appropriate position, is the premise of the completion of the polishing work. Once the workpiece placement position offset, will directly affect the final polishing effect. At the same time after grinding, the workpiece can be moved in time, and timely and accurately move into the new workpiece is directly related to the smooth operation of the automatic grinding line, if the workpiece can not be moved in time, or the new workpiece can not be moved in time, or the moving process workpiece is stuck, skew, impact and other situations, will directly disrupt the rhythm of the assembly line, serious time even possible to cause safety accidents, cause great losses. Therefore, the automatic grinding mechanism and automatic displacement mechanism must be perfect cooperation, in order to realize the whole process automatic edge grinding.

[0011] Further, the automatic edge grinding mechanism comprises a base and a polishing part; the base is used for fixing the workpiece to be polished, and the polishing part is used for automatic edge grinding of the workpiece to be polished; the polishing part is connected with the base through a connecting piece.

[0012] The automatic edge grinding mechanism can also be understood as an automatic edge grinding mechanism, which is mainly used for automatic polishing of the workpiece to be polished.

[0013] It can be understood that the automatic edge grinding mechanism can automatically polish the workpiece to be polished, which must have two conditions: one is that the workpiece to be polished and the polishing part are close to each other; the other is that one of them moves automatically, while the other remains relatively stationary, so that the workpiece to be polished and the polishing part rub to complete the polishing.

[0014] The polishing part is connected with the base through the connecting piece, so that the polishing part and the workpiece to be polished always maintain a proper distance, and the polishing part always contacts the edge of the workpiece to be polished and grinds the edge. The length of the connecting piece must be within a proper range, if the length of the connecting piece is too long, the contact area between the polishing part and the workpiece to be polished becomes small, so that the grinding degree is small, the grinding is insufficient, and some burrs on the edge of the workpiece to be polished may not be polished clean; if the length of the connecting piece is too short, the polishing part and the workpiece to be polished are excessively contacted and rubbed, which causes the edge of the workpiece to be polished to be worn, and also causes the excessive wear of the polishing cloth in the polishing part, affecting the grinding effect.

[0015] In some ways, the workpiece to be polished comprises a molded tray. Since the molded tray after pressing has edge burrs, the edge of the molded tray needs to be automatically polished.

[0016] Further, the base is provided with a moving component, which can drive the base to move, thereby driving the workpiece to be polished to move synchronously.

[0017] The utility model mainly through base drive workpiece to be polished to move, synchronous polishing component keeps relative still, and always with workpiece to be polished keep proper contact distance, realize to workpiece to be polished automatic edge grinding.

[0018] Further, the base is provided with a moving component, which can drive the base to move, thereby driving the workpiece to be polished to move synchronously.

[0019] Further, the base is provided with a moving component, which can drive the base to move, thereby driving the workpiece to be polished to move synchronously.

[0020] Further, the base is provided with a moving component, which can drive the base to move, thereby driving the workpiece to be polished to move synchronously.

[0021] Through the design of slide rail and sliding block, the base can be rotated, and the polishing component is as far as possible not to move, and the polishing component and the base still keep the same distance.

[0022] In some ways, the shape of the slide rail matches the shape of the base, such as the base is square (with rounded corners), and the slide rail is also square (with rounded corners), and the size is smaller than the square of the base.

[0023] Further, the sliding block is a cylindrical structure, and the number of the cylindrical structure is one or more than one.

[0024] Further, the cylindrical structure is fixed through the center of the circle, and the cylinder can rotate freely around the center of the circle.

[0025] The cylindrical structure can rotate freely around the center of the circle in order to reduce the friction of the sliding block sliding in the slide rail, make the sliding of the sliding block in the slide rail more smooth, reduce the friction force to the wear of each component, and prolong the service life of each component.

[0026] Further, in the automatic edge grinding mechanism, the number of the cylindrical structure is two.

[0027] The number of sliding blocks can improve the stability of the polishing component and the base. When two cylindrical structures are used to connect the sliding blocks, the stability of the connection can be improved compared to the case of one cylindrical structure. However, the number of cylindrical structures should not be too large, such as three or more. In this case, the cost is increased, the sliding difficulty is increased, and the sliding blocks can be stuck on the sliding rail and difficult to move smoothly. Therefore, two cylindrical structures are preferably used as the sliding blocks for sliding connection.

[0028] Further, the length of the connecting piece is 5-20 cm. The length of the connecting piece determines the distance between the polishing component and the base.

[0029] Research has proved that when the length of the connecting piece is 5-20 cm, that is, when the distance between the polishing component and the base is maintained at 5-20 cm, the abrasive cloth of the polishing component can contact and rub the edge of the molded tray, the edge polishing effect is the most appropriate, the edge polishing efficiency is improved, and the product quality is ensured.

[0030] Further, the workpiece includes a molded tray.

[0031] Further, the polishing component is provided with a roller. During the edge polishing process, the roller is pressed above the molded tray and kept rotating.

[0032] During the edge polishing process, the molded tray is placed on the base but is not fixed. During the rotation process driven by the base, the molded tray is easily shaken or displaced upward and downward, which causes the deviation of the edge polishing position and affects the overall edge polishing effect. Therefore, during the edge polishing process of the molded tray, corresponding components are needed to help fix the relative position of the molded tray to ensure that the edge position of the molded tray is accurate and not easy to deviate. The roller provided by the utility model plays this role, and the roller itself is continuously rotating. Therefore, the roller can help stabilize the position of the molded tray and ensure that the molded tray is not hindered during the rotation process, thereby improving the quality and efficiency of the edge polishing.

[0033] Further, the rotation speed of the roller matches the rotation speed of the base.

[0034] The rotation speed of the roller also has a very important influence on the grinding effect. Since the grinding part grinds a molded tray which is a polygon rather than a circle, if friction or resistance is generated between the roller and the molded tray, the different edges of the molded tray will receive different friction or resistance, thus making the grinding effect uneven and seriously affecting product quality. When the rotation speed of the roller is less than the rotation speed of the base, the grinding effect will be poor; when the rotation speed of the roller is greater than the rotation speed of the base, not only will the friction increase, but the molded tray will even be displaced, and the wear of the grinding part will also be aggravated; when the edge of the molded tray rotates to the position of the roller, since the distance between the roller and the center of the molded tray becomes shorter, the influence of the friction or resistance generated between the roller and the molded tray on the rotating centrifugal force becomes greater; when the corner of the molded tray rotates to the position of the roller, since the distance between the roller and the center of the molded tray becomes longer, the influence of the friction or resistance generated between the roller and the molded tray on the rotating centrifugal force becomes smaller. It can be seen that once friction or resistance is generated between the roller and the molded tray, the grinding effect will be very uneven. Therefore, the rotation speed of the roller must be matched with the rotation speed of the base. Here, the rotation speed matching does not mean that the rotation speed of the roller is the same as the rotation speed of the base. In fact, the rolling diameter of the roller is small, while the rotating diameter of the base is much larger, so the rotation speeds cannot be matched even if they are the same. Instead, when the roller rotates, the displacement of a point on the roller after the point contacts a point on the molded tray must be consistent with the displacement of the point on the molded tray after the point contacts the point on the roller, so that the rotation speeds are completely matched. For example, when the diameter of the roller is 15 cm and the diameter of the molded tray is 198 cm, and the rotation speed of the roller is 580 rpm and the rotation speed of the molded tray is 16 rpm, the friction or resistance generated between the roller and the molded tray can be reduced as much as possible. At the same time, matching the rotation speed of the roller with the rotation speed of the base can not only reduce the friction, but also prolong the service life of the grinding part.

[0035] Further, the grinding part is provided with a swing arm for adjusting the position of the grinding part to match the irregularly shaped base.

[0036] The polishing component is connected with the base through a connecting piece, and the length of the connecting piece determines the distance between the polishing component and the base. The connecting piece includes a sliding rail and a sliding block. Through the design of the sliding rail and the sliding block, the base can be rotated, and the polishing component can be kept as still as possible, while the polishing component and the base still maintain the same distance. However, since the mold pressing tray is a polygon with edges and corners, when the mold pressing tray is rotated from the edge to the corner to align with the polishing component, the distance between the polishing component and the center of the base will inevitably increase. Therefore, the polishing component cannot be completely stationary and must be appropriately moved backward at this time to truly match the edge and corner position of the mold pressing tray and to edge the edge and corner position of the mold pressing tray. At this time, an oscillating arm needs to be provided for the polishing component to allow the polishing component to be appropriately moved and adjusted within a certain sector range to change the distance between the polishing component and the center of the base (the center of the base is fixed and immovable).

[0037] It can be seen that the design of the oscillating arm can make the polishing component applicable to various irregularly shaped bases or mold pressing trays and applicable to various situations where the distance between the polishing component and the center of the base needs to be changed, thereby widening the application range of the polishing component.

[0038] Further, the oscillating arm allows the polishing component to move forward and backward in the horizontal plane. The base is a polygonal structure with edges and corners. When the base is rotated to the position where the corner is close to the polishing component, the polishing component is moved backward through the oscillating arm, and the distance between the polishing component and the center of the base becomes longer. When the base is rotated to the position where the edge of the polygon is close to the polishing component, the polishing component is moved forward through the oscillating arm, and the distance between the polishing component and the center of the base becomes shorter.

[0039] The mold pressing tray is a polygonal structure with edges and corners. When the mold pressing tray is rotated with the base, if there is no oscillating arm structure, the distance between the polishing component and the center of the base remains unchanged. When the edge of the mold pressing tray is rotated to be edged, the edge position of the mold pressing tray and the position of the polishing component collide together, resulting in a part of the mold pressing tray being unable to continue to be edged. Therefore, when the polishing component edges the edge, an oscillating arm is needed to change the distance between the polishing component and the center of the base at all times, so that the polishing component and the edge position maintain a proper distance, thereby continuing the edging work.

[0040] Further, in the automatic edging mechanism, one or more of the polishing components are arranged around the base.

[0041] Further, the number of polishing components is two, which are arranged on both sides of the base.

[0042] The arrangement of two polishing components effectively utilizes the space and improves the edging efficiency.

[0043] Further, the automatic edge grinding mechanism comprises a base and a grinding part; the base is used for fixing the mold tray, and the grinding part is used for automatically grinding the edge of the mold tray; the grinding part further comprises a sand cloth and a dust recovery system; the sand cloth is used for grinding the edge of the mold tray, and the dust recovery system is used for absorbing the dust generated in the grinding process.

[0044] Further, the sand cloth is detachably fixed on the support. The detachable design facilitates the replacement of the sand cloth after the sand cloth is worn out.

[0045] Further, the support is provided with a roller, which is used to drive the sand cloth to rotate, so as to grind the edge of the mold tray. The rotation speed of the roller is consistent with the rotation speed of the base, thereby prolonging the service life of the sand cloth.

[0046] The sand cloth rolls along with the roller, so as to realize the rolling and grinding of the edge of the mold tray at the same time. Meanwhile, the mold tray keeps rotating, which is equivalent to the position of the mold tray changing in the horizontal direction, and the position of the sand cloth changing in the vertical direction. The combination of the multiple position changes can improve the grinding effect.

[0047] Further, the support is supported and fixed by a support column. When the support column is removed, the support is folded, and the sand cloth can be detached from the support for replacement. The split design facilitates the replacement of the sand cloth.

[0048] When the support column is supported, the support can fix the position of the sand cloth. When the support column is removed, the support loses the fulcrum and cannot be fixed, so that the sand cloth cannot be continuously fixed and can be directly removed from the support.

[0049] Further, in the automatic edge grinding mechanism, the dust recovery system comprises a suction pump and a recovery channel. The suction pump is located on one side of the edge grinding mechanism and is used for sucking the dust generated in the grinding process. The dust is recovered and concentrated through the recovery channel.

[0050] Further, the outlet of the recovery channel is upwardly inclined and is located below the grinding position of the sand cloth. Further, the sand cloth grinds the edge of the mold tray in a direction from top to bottom, so that the generated dust enters the recovery channel from top to bottom.

[0051] The upward inclination of the outlet of the recovery channel can prevent the dust from floating. The sand cloth grinds the edge of the mold tray in a direction from top to bottom, so that the generated dust can basically enter the recovery channel from top to bottom, is sucked by the suction pump, and the efficiency of dust recovery is improved. This design reduces the damage of the dust to the operator's body.

[0052] Further, the grinding part pushes the sand cloth close to the mold tray by a cylinder piston, and pushes the roller close to the upper surface of the mold tray.

[0053] Further, the cylinder piston is located at the bottom of the polishing component; when the cylinder piston is opened, the cylinder piston pushes the polishing component to go up and enter the working state; when the cylinder piston is closed, the polishing component goes down and returns to the original position. When the edge of a mold tray is polished, the cylinder piston is closed, the polishing component goes down and returns to the original position, providing space for replacing a new mold tray to be polished. When a new mold tray to be polished is replaced, the cylinder piston is started, the cylinder piston pushes the polishing component to go up, so that the polishing component enters the working state.

[0054] Further, in the automatic edge polishing mechanism, a groove is arranged on the base, and the groove is matched with the protrusion at the bottom of the mold tray; when the mold tray is placed on the base, the protrusion enters the groove, and the mold tray is positioned.

[0055] The groove of the base can help the mold tray to be positioned and fixed, avoid improper position, and make the mold tray rotate more stably when the base rotates.

[0056] Further, the number of the groove and the protrusion is consistent, including one or more, and the groove and the protrusion are arranged uniformly on the base and the bottom of the mold tray respectively.

[0057] The number of the groove and the protrusion is consistent to fix the mold tray on the base, so that the mold tray does not move during the edge polishing process, and the polishing component uniformly polishes the mold tray.

[0058] Further, the automatic displacement mechanism includes a clamping assembly, the clamping assembly includes a first clamping assembly and a second clamping assembly, and the first clamping assembly and the second clamping assembly are arranged on the two sides of the automatic edge polishing mechanism. The first clamping assembly runs back and forth above the automatic edge polishing mechanism at a first position, and the second clamping assembly runs back and forth above the automatic edge polishing mechanism at a second position. The first clamping assembly is used to grab the workpiece to be polished from the first position and place the workpiece to be polished into the automatic edge polishing mechanism. The second clamping assembly is used to grab the workpiece that has been polished and place the workpiece that has been polished into the second position.

[0059] In some ways, the first clamping assembly and the second clamping assembly need to run simultaneously and work synchronously, that is, when the first clamping assembly grabs the workpiece to be polished from the first position, the second clamping assembly is also grabbing the workpiece that has been polished. When the first clamping assembly places the workpiece to be polished into the automatic edge polishing mechanism, the second clamping assembly is also placing the workpiece that has been polished into the second position. Synchronous operation can provide the running efficiency of the clamping assembly, synchronous control of the first clamping assembly and the second clamping assembly can not only ensure the control accuracy, but also reduce the control cost.

[0060] In some ways, the automatic edge polishing mechanism is located at a middle position, and the first clamping assembly and the second clamping assembly are arranged on the two sides of the automatic edge polishing mechanism, which can be any position left and right of the front and back of the automatic edge polishing mechanism, as long as they are not in the same position.

[0061] In some modes, the workpiece is a molded tray, which is large in volume and heavy in mass. In order to facilitate use and avoid errors, the first clamping assembly and the second clamping assembly are preferably arranged on the left and right sides of the automatic edge grinding mechanism, respectively.

[0062] Further, the clamping assembly comprises a base, a clamping piece and a cylinder piston, the clamping piece being located on the base; the cylinder piston comprises a first cylinder piston and a second cylinder piston, the first cylinder piston being used to control the rising and falling of the base, and the second cylinder piston being used to control the opening and closing of the clamping piece, thereby realizing the grabbing and placing of the workpiece.

[0063] In some modes, the base matches the shape and size of the molded tray, each clamping assembly is provided with two clamping pieces, and the two clamping pieces are arranged on the two sides of the base. When the clamping assembly moves above the molded tray, the first cylinder piston pushes the base to descend and approach the molded tray, and then the second cylinder piston pushes the clamping piece to close and grab the two sides of the molded tray. The second cylinder piston is further divided into a left cylinder and a right cylinder, which are respectively used to control the opening and closing of the left and right clamping pieces. When the second cylinder piston is opened, the two clamping pieces close to the middle, and when the second cylinder piston is closed, the two clamping pieces open to the two sides.

[0064] The clamping piece is a one-way long clamping piece, which can contact and clamp the edge of the molded tray in a large area, ensuring that the clamping process is more stable and helping to realize the accurate displacement of the molded tray.

[0065] Further, the automatic displacement mechanism further comprises a moving track and a horizontal movement power source; the horizontal movement power source is used to control the left and right movement of the clamping assembly in the horizontal direction; and the clamping assembly is connected to the moving track through a pulley.

[0066] In some modes, the horizontal movement power source comprises a belt and a belt pulley, the belt pulley drives the belt to move, and the upper end of the clamping assembly is fixed on the belt, so that the clamping assembly can move left and right horizontally together with the belt.

[0067] The design of the moving track can help stabilize the moving direction of the clamping assembly and prevent position deviation. It is equivalent to the combination of the belt and the moving track, which provides double insurance for the stable repeated horizontal movement of the clamping assembly and ensures the accuracy of the horizontal movement position.

[0068] Further, the automatic displacement mechanism further comprises a positioning system, the positioning system comprising an input positioning mechanism and an output positioning mechanism; the input positioning mechanism is used to place the workpiece to be polished, and the output positioning mechanism is used to place the polished workpiece.

[0069] Further, the positioning system further comprises a positioning detection device, which is used to control the placement height position of the workpiece to be polished and the polished workpiece.

[0070] To realize the automatic displacement of the workpiece, the accuracy of the horizontal movement position must be ensured in two aspects. On the one hand, the clamping assembly must ensure the accuracy of the horizontal movement position. On the other hand, the placement of the workpiece in the input positioning mechanism and the output positioning mechanism must also ensure the accuracy of the horizontal movement position. If there is a slight deviation in either aspect, it will directly affect the smooth operation of the automatic edging line, directly disrupt the rhythm of the line, and cause significant losses.

[0071] Therefore, the input positioning mechanism and the output positioning mechanism are respectively provided with positioning detection devices for detecting the placement height of the workpiece in the input positioning mechanism and the output positioning mechanism, and the placement position of the workpiece must also be parallel to the ground.

[0072] In some modes, the workpiece is a molded tray, and the input positioning mechanism and the output positioning mechanism are stacked with multiple molded trays. When a molded tray on the input positioning mechanism is removed, its height will inevitably be lowered. If the remaining molded trays are not moved upward in time to maintain the original height, the first clamping assembly will not be able to smoothly grab the molded tray, affecting the overall progress. Therefore, the positioning detection device must detect the stacking height of the molded tray to be polished in the input positioning mechanism in time, and adjust in time, so that the first clamping assembly can smoothly grab the molded tray and place it in the automatic edging mechanism each time.

[0073] At the same time, when a molded tray on the output positioning mechanism is moved in, its height will inevitably be raised. If the molded tray is not moved downward in time to maintain the original height, the second clamping assembly will collide with the molded tray when it goes down, causing damage to the second clamping assembly, and even serious safety accidents. Therefore, the positioning detection device must detect the stacking height of the molded tray that has been edged in the output positioning mechanism in time, and adjust in time, so that the second clamping assembly can smoothly place the molded tray that has completed edging to the output positioning mechanism each time.

[0074] Further, the input positioning mechanism and the output positioning mechanism are provided with an up-down movement power source for controlling the height of the input positioning mechanism and the output positioning mechanism, thereby controlling the placement height position of the workpiece to be polished and the workpiece that has been polished.

[0075] Further, the input positioning mechanism and the output positioning mechanism are respectively provided with a base plate, a traction chain, a gear, and a limiting block. The base plate is used to place the workpiece, and the traction chain and the gear are respectively connected to the base plate. The gear is used to control the base plate to remain horizontal. The limiting block is arranged on the base plate and is used to limit the placement position of the workpiece.

[0076] In some modes, the traction chain is four, two on each side of the base plate, two on each side, for smooth traction of the base plate up and down displacement. One end of each traction chain is connected with the base plate, the other end is connected with the crossbeam in the frame, and the traction chain is driven by the first gear to move the base plate up and down. At the same time, a second gear is also provided, which is connected with the base bar and the bottom of the base plate. When the second gear rotates, it drives the base plate to move up and down along the base bar.

[0077] The second gear is uniformly provided with sawtooth, and the base bar transmission gear is also provided to match the gear rotation distance. Each rotation corresponds to a height of about 1 centimeter, that is, the side of the base plate is raised by about 1 centimeter.

[0078] The traction chain and the first gear are located on both sides of the base plate, respectively pulling the two sides of the base plate. When the traction chain and the first gear pull the base plate upward, the second gear and the base bar pull one end of the base plate upward. If the traction chain and the first gear pull upward too fast, or the speed of the two traction chains is inconsistent, the base plate will tilt, the second gear and the base bar will be loose during cooperation, which will accelerate the rotation of the second gear, so that one end of the base plate also accelerates to rise, so that the base plate always maintains horizontal. Through the perfect cooperation of the gear and the traction chain, the upper plane of the base plate and the mold pressing tray stacked above it can be kept on a horizontal line, and the whole body can rise or fall uniformly.

[0079] In some modes, the mold pressing tray is stacked above the base plate of the input positioning mechanism, and the specific placement position of the mold pressing tray is limited by the limiting block to a specific position. When the uppermost mold pressing tray is removed by the first clamping assembly, the overall height becomes lower, and the positioning detection device sends an indication. The traction chain pulls the base plate upward, and the gear starts to rotate to control the speed of the base plate moving upward and keep the base plate and the mold pressing tray on a horizontal plane.

[0080] In some modes, the area of the base plate is larger than that of the mold pressing tray, so when the mold pressing tray is placed into the base plate of the input positioning mechanism, the position of the mold pressing tray may be deviated, which will directly affect the subsequent automatic displacement and automatic polishing effect. By setting a limiting block on the base plate, the mold pressing tray needs to be placed into the base plate by clamping the limiting block, which can quickly and accurately limit the position of the mold pressing tray, thereby simply and efficiently solving the problem. The lower end of the limiting block is a cuboid, and the upper end has an inclined bevel. The inclined bevel can conveniently guide the mold pressing tray to slide into the correct position.

[0081] Further, the automatic edge grinding device further comprises a frame, the automatic edge grinding mechanism is located at the middle position of the frame, and the automatic displacement mechanism is separately arranged on the left side and the right side of the frame.

[0082] In some ways, the automatic edging device further comprises a control module, the control module comprising a power supply device, a motor device, a driving device, a control device, a display device.

[0083] The power supply device is used for power supply, and in fixed use, a power plug with a ground wire is used, and in mobile use, dry batteries or storage batteries are used. The motor device is used for providing rotation power of the base, and the driving device is driven by a stepping motor. The driving device drives the polishing mechanism to automatically polish, and provides driving force for the automatic displacement mechanism to grab and move the workpiece.

[0084] The control device controls the automatic edging mechanism and the automatic displacement mechanism through a motor control device, a cylinder piston, a roller, a belt, a roller shaft, a positioning detection device and the like.

[0085] In some ways, the control device controls the current size and direction to the motor through the motor control device, thereby controlling the driving device.

[0086] In some ways, the display device is used for an operator to issue instructions and obtain execution results, including displacement programs, polishing programs, positioning programs, and the working state of each part is indicated by the color of the indicator light to indicate power on, standby, working and the like.

[0087] In another aspect, the utility model provides an automatic edging method of a mould pressing tray, which comprises the following steps:

[0088] (1) the mould pressing tray is placed in the input positioning mechanism of the automatic displacement mechanism, and the input positioning mechanism adjusts the position height of the mould pressing tray by controlling the height of the base plate;

[0089] (2) the first clamping assembly moves downward, grabs the mould pressing tray, moves to the upper side of the automatic edging mechanism, moves downward and places the mould pressing tray in the automatic edging mechanism, and the automatic edging mechanism automatically edges the mould pressing tray;

[0090] (3) after the automatic edging is completed, the second clamping assembly moves to the upper side of the automatic edging mechanism, moves downward, grabs the mould pressing tray, moves to the upper side of the output positioning mechanism, moves downward, places the mould pressing tray in the output positioning mechanism, and the output positioning mechanism adjusts the position height of the mould pressing tray by controlling the height of the base plate.

[0091] In some ways, the position height of the mould pressing tray in the input positioning mechanism, the position height of the mould pressing tray in the automatic edging mechanism and the position height of the mould pressing tray in the output positioning mechanism are consistent.

[0092] The utility model has the following beneficial effects:

[0093] (1) The automatic edge grinding device of the molded tray provided by the utility model realizes full-process automatic edge grinding control of the molded tray through close cooperation of the automatic edge grinding mechanism and the automatic displacement mechanism, remarkably improves edge grinding efficiency, and is green, safe and environmentally friendly;

[0094] (2) The automatic edge grinding mechanism comprises a base and a grinding part, and can realize highly automatic edge grinding of the molded tray; a connecting piece is arranged between the base and the grinding part, sliding connection is realized, the grinding part is relatively static during movement of the base, and the appropriate fitting distance between the grinding part and the workpiece to be ground is also ensured, so that the edge grinding quality and batch consistency are ensured;

[0095] (3) The grinding part is designed with a roller, so that the position of the molded tray is stabilized during edge grinding through the roller, the molded tray is not hindered during rotation, and the edge grinding quality and efficiency are improved;

[0096] (4) The automatic edge grinding device is provided with a swing arm and a cylinder piston, so that the grinding part can move forward, backward, upward and downward, the position cooperation degree with the molded tray is better, and the automatic edge grinding device is suitable for various irregular-shaped molded trays and realizes high automation;

[0097] (5) The sandpaper rolls longitudinally together with the roller, the position of the molded tray changes in the transverse direction during rotation, and multiple position changes are combined to improve the edge grinding effect;

[0098] (6) The automatic edge grinding device can recycle dust generated during edge grinding as much as possible, prevent dust from drifting, and reduce the damage of dust to the health of operators;

[0099] (7) The automatic displacement mechanism can ensure the accuracy of the horizontal movement position of the clamping assembly and the accuracy of the horizontal movement position of the workpiece placed in the input positioning mechanism and the output positioning mechanism, so that the automatic displacement of the workpiece is realized accurately, the workpiece is prevented from being stuck, skewed or impacted during movement, and the smooth progress of the full-automatic assembly line is ensured;

[0100] (8) The belt, the belt pulley and the moving track are arranged for the movement of the clamping assembly, the combination of the belt, the belt pulley and the moving track provides double insurance for the repeated horizontal movement of the clamping assembly, and ensures the accuracy of the horizontal movement position;

[0101] (9) The input positioning mechanism and the output positioning mechanism are respectively provided with positioning detection devices for detecting the workpiece placement height of the input positioning mechanism and the output positioning mechanism;

[0102] (10) the two sides of the base plate are pulled by traction chains and gears respectively, and the perfect cooperation of the gears and the traction chains makes the upper planes of the base plate and the overlying mold pressing tray keep in a horizontal line, and the whole body rises or falls uniformly;

[0103] (11) by setting a limiting block on the base plate, when the mold pressing tray is put into the base plate, the inclined edge of the limiting block guides the mold pressing tray to slide into the correct position, quickly and accurately limits the position of the mold pressing tray, and prevents the position of the mold pressing tray from being deviated;

[0104] (12) the edge grinding device of the mold pressing tray provided by the utility model realizes automatic control, not only reduces the labor cost and improves the edge grinding efficiency, but also is green and environment-friendly.

[0105] Detailed description

[0106] Workpiece to be ground

[0107] The workpiece to be ground can be any product that needs to be ground, and the material thereof can be wood, plastic, metal or a product prepared by mixing different materials, and the shape thereof can be any shape, as long as the size can cooperate with the automatic edge grinding mechanism to be ground. When the surface or edge of the product is rough, the automatic edge grinding mechanism provided by the utility model can be used for grinding to make the surface of the product smoother, facilitate use, or improve the aesthetic degree and user experience.

[0108] In some modes, the workpiece to be ground comprises a mold pressing tray. The mold pressing tray is usually made of straw, branch, wood chip, bamboo chip, bamboo wood fertilizer and the like from recyclable resources, and is usually prepared by hot pressing and the like. The raw material is simple, the cost is low, and it is safe and environmentally friendly. The outer edge surface of the mold pressing tray has many burrs, and needs to be ground.

[0109] Base and grinding component

[0110] The workpiece to be ground must be kept in a specific position or keep regular motion, so that the automatic edge grinding mechanism can automatically grind it, therefore, the workpiece to be ground must be placed on the base, and is fixed by the base or moves regularly with the base to complete the grinding.

[0111] The base needs to be provided with a groove or a protrusion for fixing the workpiece to be polished, which can match the protrusion or groove on the workpiece to be polished, so that the workpiece to be polished is better fixed on the base. When the base moves autonomously, it can drive the workpiece to be polished to move together. Automatic polishing can be performed between the workpiece to be polished and the polishing part, which must meet two conditions: one is that the workpiece to be polished and the polishing part are close to each other; the other is that one of them moves automatically while the other remains relatively stationary, so that friction occurs between the workpiece to be polished and the polishing part to complete polishing. For example, the workpiece to be polished is stationary, and the polishing part moves automatically to complete polishing, or the polishing part is stationary, and the workpiece to be polished moves automatically. The utility model drives the workpiece to be polished to move autonomously by the base, and the polishing part is relatively stationary to complete automatic polishing. Of course, the base and the workpiece to be polished can also be fixed differently, and the polishing part can rotate around the workpiece to be polished to complete automatic polishing, but this way requires higher automation of the polishing part, that is, the polishing part needs to move autonomously, and the polishing part also needs to control the sanding cloth for polishing, which is not easy to control in terms of control precision and has a higher preparation cost.

[0112] In some ways, the base moves in a self-leveling rotation manner, thereby driving the workpiece to be polished to rotate autonomously, and the polishing part remains relatively stationary to complete automatic polishing. The relatively stationary mentioned here does not mean that the polishing part is completely stationary. When the workpiece to be polished is irregularly shaped, the polishing part also needs to be appropriately adjusted in position during rotation to polish, and the sanding cloth in the polishing part also does not remain stationary, but moves up and down to improve polishing efficiency.

[0113] Of course, the movement mode of the base is not only horizontal rotation, but also vertical rotation, up and down, horizontal, left and right reciprocating motion, even tilting motion, tilting rotation and the like. The most preferred movement mode is horizontal rotation, which is particularly suitable for larger workpieces to be polished, the movement process is more stable and easy to control, the polishing effect of the polishing part can be improved, and the dust generated is easier to collect, preventing pollution of the environment.

[0114] Automatic displacement mechanism

[0115] The automatic displacement mechanism is an indispensable part of realizing automatic polishing of the workpiece. The workpiece is automatically moved and placed into the base of the automatic edge grinding mechanism to ensure the accuracy of the placement position. The automatic edge grinding process cannot be affected by the deviation of the placement position. After the automatic edge grinding is completed, the workpiece is removed from the automatic edge grinding mechanism and a new workpiece is placed into it. The automatic placement, automatic removal and automatic placement process must be carried out in sequence and cannot collide with each other. The subsequent process cannot be affected by the incorrect placement of the placement and removal positions.

[0116] The automatic displacement is carried out by the clamping mechanism, and the shape of the clamping mechanism needs to be matched with the shape of the workpiece. For example, when the workpiece is a molded tray, the clamping mechanism needs to have a base and a clamping piece, the base is matched with the shape of the molded tray, and the stability of the clamping process can be improved. When the molded tray is square, the base can be square, and when the molded tray is circular, the base is preferably circular. The clamping piece is arranged around the outer periphery of the base, is rectangular and has a certain arc, can fit the edge of the molded tray, so that the molded tray can be clamped more stably, and the number of clamping pieces can be adjusted according to the volume, weight, edge number and the like of the molded tray, as long as the clamping process can keep balance and stable clamping. Of course, if the workpiece is other small object, the clamping structure can also be clamped only by the clamping piece.

[0117] In order to make the placement position of the molded tray after clamping accurate, in addition to making the shape of the clamping mechanism fit the molded tray and stably clamping, it is also necessary to ensure the accurate design of the running track of the clamping mechanism. The running track can be combined in different forms such as chain, sliding block and sliding rail, to ensure the accuracy of the running path and direction of the clamping mechanism after clamping the molded tray. The size, height and running track of the running track can be reasonably set according to the size of the workpiece, the placement position and the like.

[0118] The input positioning mechanism and the output positioning mechanism are respectively used to control the placement position and the placement height of the input and output molded trays. The number of clamping mechanisms can be one or more. When the number of clamping mechanisms is one, the clamping mechanism is first located above the input positioning mechanism and is set at a certain height. When the molded tray needs to be grabbed, the clamping mechanism descends, and the descending distance needs to be integrated with the clamping mechanism to contact and grab the molded tray. Then the clamping mechanism carrying the molded tray ascends to a certain height and moves above the automatic edge grinding mechanism. The clamping mechanism descends to accurately place the molded tray into the tray base in the automatic edge grinding mechanism, and makes the protrusions at the bottom of the tray and the grooves on the base completely match, so that the position of the molded tray is accurately fixed. The clamping mechanism ascends to start automatic edge grinding. After edge grinding, the clamping mechanism descends again to grab the molded tray, ascends, then moves above the output positioning mechanism, and the clamping mechanism descends to place the molded tray in the output positioning mechanism. Then the clamping mechanism needs to run back to the input positioning mechanism.

[0119] Understandably, increasing the number of clamping mechanisms can make the entire clamping process more efficient. However, with an increased number of clamping mechanisms, controlling them and maintaining synchronous operation becomes more difficult, and the accuracy requirements for displacement and gripping also increase. This invention preferably employs two clamping mechanisms: one for gripping the workpiece to be ground from the input positioning mechanism and placing it into the automatic edge grinding mechanism, and the other for gripping the ground workpiece from the automatic edge grinding mechanism and placing it into the output positioning mechanism. Using two clamping mechanisms significantly improves the efficiency of gripping and displacement, accelerating the automation process. However, simultaneously controlling both clamping mechanisms, ensuring synchronization while preventing mutual interference, significantly increases the control difficulty. This invention improves the structure of the moving track and positioning mechanism, enabling the moving track to precisely control the displacement of the clamping mechanism and the positioning mechanism to accurately position it. This allows the two clamping mechanisms, when used in combination with the moving track and positioning mechanism, to complete the displacement and precise placement of the molding tray, ensuring the smooth operation of the automation process.

[0120] In some methods, a positioning device may not be required, meaning the height of the molding trays at the input and output positions is not limited. Instead, the downward distance of the clamping mechanism is adjusted each time the trays are gripped. A shorter downward distance is needed for a larger number of trays placed higher, and a longer distance for fewer trays placed lower. This achieves the same effect, but places higher demands on the adjustment of the downward distance, increasing the difficulty. This invention preferably uses a positioning mechanism to control the placement height of the molding trays at the input and output positions, thus ensuring a consistent downward distance for each clamping mechanism movement. This simplifies the structural design, achieving automatic and precise displacement of the molding trays in the simplest way, and also reduces costs. Attached Figure Description

[0121] Figure 1 This is a schematic diagram of the overall structure of the molding tray edge grinding machine;

[0122] Figure 2 This is an overall schematic diagram of the molding tray and automatic edge grinding mechanism (excluding the swing arm);

[0123] Figure 3 A schematic diagram of the overall molding tray and automatic edge grinding mechanism (view from below, excluding the swing arm);

[0124] Figure 4 This is a schematic diagram of the automatic edge grinding mechanism (including the swing arm);

[0125] Figure 5 A schematic diagram of the combined structure of the base and the polishing components (excluding the swing arm);

[0126] Figure 6 This is a schematic diagram of the base structure;

[0127] Figure 7 Structure diagram of the polishing component (without swing arm);

[0128] Figure 8 Structure diagram of the polishing component (without swing arm, side view);

[0129] Figure 9 Exploded view of the polishing component (without swing arm);

[0130] Figure 10 Swing arm swing process diagram of the polishing component;

[0131] Figure 11 Structure diagram of the automatic displacement mechanism;

[0132] Figure 12 Structure diagram of the clamping assembly and moving track;

[0133] Figure 13 Structure diagram of the clamping assembly;

[0134] Figure 14 Mechanism diagram of the positioning mechanism;

[0135] Figure 15 Physical diagram of the automatic edge polishing device of the molded tray;

[0136] Figure 16 Physical diagram of the automatic displacement mechanism of the automatic edge polishing device of the molded tray;

[0137] Figure 17 Physical diagram of the automatic edge polishing mechanism of the automatic edge polishing device of the molded tray. DETAILED DESCRIPTION

[0138] The utility model will be described in further detail below in combination with the drawings and examples, and it should be pointed out that the following examples are intended to facilitate the understanding of the utility model and do not limit it in any way.

[0139] Example 1, automatic edge polishing device of molded tray

[0140] The automatic edge polishing device 32 of the molded tray provided in the example comprises an automatic edge polishing mechanism 1 and an automatic displacement mechanism 2, and the overall structure diagram is as shown in Figure 1 wherein the automatic edge polishing mechanism 1 is used for automatically polishing the workpiece 4 to be polished; and the automatic displacement mechanism 2 is used for placing the workpiece 4 to be polished into the automatic edge polishing mechanism 1 or moving the workpiece 4 after polishing out of the automatic edge polishing mechanism 1.

[0141] The structure of the automatic edge polishing mechanism 1 is as shown in Figures 2-4As shown, including the base 2 and polishing parts 3; base 2 for fixing the workpiece 4 to be polished, polishing parts 3 for automatic polishing of the workpiece 4 to be polished; polishing parts 3 through connecting piece 7 and base 2 connection. The embodiment described in the workpiece 4 to be polished for the mold tray 5. Because the edge burr of the mold tray 5 after pressing, the need for automatic edge grinding mold tray 5 edge processing.

[0142] As Figure 3 , base 2 is provided with movement parts 6, movement parts 6 can drive the base 2 movement, thus driving the workpiece 4 to be polished synchronous movement. Base 2 of the movement mode is horizontal rotation, polishing parts 3 through connecting piece 7 and the slide rail 8 below the base 2 slide connection. Connecting piece 7 includes connecting rod 9 and slide block 10, slide block 10 and the slide rail 8 below the base 2 is connected; when the base 2 rotates, the slide block 10 of polishing parts 3 in the slide rail 8 sliding. Through the design of the slide rail 8 and slide block 10, can realize the base 2 rotation, while polishing parts 3 as far as possible not to move, at the same time, polishing parts 3 and base 2 still keep the same distance.

[0143] As Figure 3 , 7 ~ 9, preferably, the slide block 10 is a cylindrical structure 11, the number of cylindrical structure 11 is one or more. Cylindrical structure 11 is fixed by the center 12, cylindrical structure 11 can rotate freely around the center 12. Cylindrical structure 11 can rotate freely around the center. Cylindrical structure 11 around the center 12 freely rotating can reduce the friction of the slide block 10 in the slide rail 8 sliding, make the slide block 10 in the slide rail 8 sliding more smooth, reduce the friction force on the wear of each component, prolong the service life of each component. The number of cylindrical structure 11 is preferably two. Control the number of cylindrical structure 11, can improve the stability of polishing parts 3 and base 2 connection. When the slide block 10 adopts two cylindrical structure 11 connection, compared with the case of one cylindrical structure 11, can significantly improve the stability of connection, but the number of cylindrical structure 11 can not be too much, such as three or more than three, not only increase the cost, but also improve the difficulty of sliding, even it may appear that the slide block 10 is stuck in the slide rail 8 difficult to move smoothly, therefore, preferably using two cylindrical structure 11 as the slide block 10 sliding connection.

[0144] The length of connecting piece 7 determines the distance between the polishing parts 3 and base 2, preferably 5-20 cm, most preferably 12 cm, that is, when the distance between the polishing parts 3 and base 2 is maintained at 12 cm, the polishing parts 3 of the abrasive cloth 19 and the edge of the mold tray 5 contact and friction effect is the best, the edge grinding effect is the most appropriate, can improve the edge grinding efficiency, ensure product quality.

[0145] As Figures 2-3The polishing part 3 is provided with a roller 15. During the edge polishing process, the roller 15 is pressed above the mold pressing tray 5 and kept rotating. During the edge polishing process, the mold pressing tray 5 is placed on the base 2, but is not fixed and is rotated under the driving of the base 2. During the rotation process, the mold pressing tray 5 is easily shaken or displaced up and down, which causes the deviation of the edge polishing position and affects the overall edge polishing effect. Therefore, during the rotation edge polishing process of the mold pressing tray 5, corresponding parts need to be arranged to help fix the relative position of the mold pressing tray 5, so as to ensure that the edge position of the mold pressing tray 5 during the edge polishing process is accurate and is not easy to deviate. The roller 15 plays this role, and the roller 15 itself is continuously rotating, so it can help stabilize the position of the mold pressing tray 5 and ensure that the mold pressing tray 5 is not hindered during the rotation process, thereby improving the quality and efficiency of the edge polishing. The rotation speed of the roller 15 matches the rotation speed of the base 2.

[0146] The rotating speed of the roller 15 also has a very important influence on the grinding effect. Since the molded tray 5 ground by the grinding part 3 is a polygon rather than a circle, if the friction or resistance between the roller 15 and the molded tray 5 is generated, the different edges of the molded tray 5 will be subjected to different friction or resistance, thus the grinding effect is unbalanced, which seriously affects the product quality. When the rotating speed of the roller 15 is less than the rotating speed of the base 2, the grinding effect will be poor; when the rotating speed of the roller 15 is greater than the rotating speed of the base 2, not only the friction will be increased, but also the molded tray 5 will be displaced, and the wear degree of the grinding part 3 will be increased; when the edge 16 of the molded tray 5 rotates to the position of the roller 15, since the center position between the roller 15 and the molded tray 5 is shortened, the influence of the friction or resistance between the roller 15 and the molded tray 5 on the rotating centrifugal force will be increased; when the edge 17 of the molded tray 5 rotates to the position of the roller 15, since the center position between the roller 15 and the molded tray 2 is lengthened, the influence of the friction or resistance between the roller 15 and the molded tray 2 on the rotating centrifugal force will be decreased. It can be seen that once the friction or resistance between the roller 15 and the molded tray 5 is generated, the grinding effect will be unbalanced. Therefore, the rotating speed of the roller 15 must be matched with the rotating speed of the base 2. Here, the rotating speed matching does not mean that the rotating speed of the roller 15 is the same as the rotating speed of the base 2. In fact, the rolling diameter of the roller 15 is small, and the rotating diameter of the base 2 is relatively large, so the rotating speed cannot be matched. The rotating speed of the roller 15 must be matched with the rotating speed of the base 2, that is, when a point on the roller 15 contacts with a point on the molded tray 5, the displacement of the point on the roller 15 is consistent with the displacement of the point on the molded tray 5. In this embodiment, the diameter of the roller 15 is 15 cm, the diameter of the molded tray 5 is 198 cm, and when the rotating speed of the roller 15 is 580 rpm and the rotating speed of the molded tray 5 is 16 rpm, the friction or resistance between the roller 15 and the molded tray 5 can be reduced as much as possible. At the same time, the matching of the rotating speed of the roller 15 with the rotating speed of the base 2 can not only reduce the friction, but also prolong the service life of the grinding part 3.

[0147] As Figure 4, the polishing component 3 is provided with a swing arm 18 for adjusting the position of the polishing component 3 to match the irregularly shaped base 2. The polishing component 3 is connected with the base 2 through a connecting piece 7, and the length of the connecting piece 7 determines the distance between the polishing component 3 and the base 2. A sliding block 10 on the connecting piece 7 can slide in a sliding rail 8 below the base 2, and through the design of the sliding rail 8 and the sliding block 10, the base 2 can be rotated while the polishing component 3 is kept as still as possible, and the polishing component 3 and the base 2 still maintain the same distance. However, since the mold pressing tray 5 is a polygon with edges 17, when the mold pressing tray 5 is rotated from the edge 16 to the edge 17 to align with the polishing component 3, the distance between the polishing component 3 and the center of the base 2 will inevitably increase, so the polishing component 3 cannot be completely stationary and must be appropriately moved backward at this time to truly match the edge 17 position of the mold pressing tray 5 and to edge the edge 17 position of the mold pressing tray 5. At this time, the swing arm 18 needs to be provided on the polishing component 3 to allow the polishing component 3 to move and adjust the distance between the center of the base 2 (the center of the base 2 is fixed) within a certain sector range.

[0148] One end 32 of the swing arm 18 is fixed, and the other end 33 can drive the polishing component 3 to move forward and backward in the horizontal plane; the base 2 is a polygonal structure with edges, when the base 2 is rotated to the edge close to the polishing component 3, the polishing component 3 moves backward through the swing arm 18, and the distance between the polishing component 3 and the center of the base 2 becomes longer; when the base 2 is rotated to the edge of the polygon close to the polishing component 3, the polishing component 3 moves forward through the swing arm 18, and the distance between the polishing component 3 and the center of the base 2 becomes shorter. The mold pressing tray 5 is a polygonal structure with edges, when the mold pressing tray 5 is rotated with the base 2, if there is no swing arm 18 structure, the distance between the polishing component 3 and the center of the base 2 remains unchanged, then when the edge 17 of the mold pressing tray 5 is turned over to be edged, the edge 17 position of the mold pressing tray 5 and the position of the polishing component 3 collide together, resulting in a part of the mold pressing tray 5 unable to continue to be edged, therefore when the polishing component 3 edges the edge 17, a swing arm 18 is needed to change the distance between the polishing component 3 and the center of the base 2 all the time, so that the polishing component 3 and the edge 17 position maintain a proper distance, thereby continuing the edging work.

[0149] In the process of rotating the mold pressing tray 5, the working process of the swing arm 18 is as shown in Figure 10 When the mold pressing tray 5 is rotated from the edge 16 (left) to the edge 17 (right), the swing arm 18 is horizontally rotated outward by about 15 degrees 34, so that the position of the polishing component 3 moves backward to cooperate with the edge 17 position of the mold pressing tray 5. It can be seen that the design of the swing arm 18 can make the polishing component 3 applicable to various irregularly shaped bases 2 or mold pressing trays 5, and applicable to various situations where the distance between the center of the base 2 and the polishing component 3 needs to be changed, thereby widening the application range of the polishing component 3.

[0150] As Figures 3-6 In the automatic edge grinding mechanism 1, one or more grinding parts 3 are arranged around the base 2. In this embodiment, the number of grinding parts 3 is preferably two, arranged on both sides of the base 2. Arranging two grinding parts 3 can effectively utilize space and improve edge grinding efficiency.

[0151] As Figures 8-10 The grinding part 3 also includes a sandpaper 19 for edge grinding the mold tray 5 and a dust recovery system 20 for absorbing dust generated during edge grinding. The sandpaper 19 is detachably fixed on the bracket 21. The detachable design facilitates replacement of the sandpaper 19 after wear. The bracket 21 is provided with two upper and lower rollers 22, which are used to drive the sandpaper 19 to rotate, thereby grinding the mold tray 5. The rotation speed of the roller 22 is consistent with the rotation speed of the base 2, which prolongs the service life of the sandpaper 19. The sandpaper 19 rolls with the roller 22, thereby achieving rolling while edge grinding the mold tray 5. At the same time, the mold tray 5 is continuously rotating, which is equivalent to the position of the mold tray 5 changing horizontally, and the position of the sandpaper 19 changing vertically longitudinally, and multiple position changes together to improve the edge grinding effect. The bracket 21 is supported and fixed by the support column 23. When the support column 23 is supported, the bracket 21 can fix the position of the sandpaper 19. When the support column 23 is removed, the bracket 21 loses the fulcrum and cannot be fixed, so the sandpaper 19 cannot continue to be fixed and can be directly removed from the bracket 21. Such split design can more conveniently disassemble and replace the sandpaper 19.

[0152] In the automatic edge grinding mechanism 1, the dust recovery system 20 includes a suction pump and a recovery channel 24. The suction pump is located at the distal end of the recovery channel 24 and is used to suck dust generated during edge grinding. The dust is collected and treated after being recovered through the recovery channel 24. The outlet 26 of the dust recovery system 20 is inclined upward and is located below the edge grinding position of the sandpaper 19 and is connected to the recovery channel 24 through the channel opening 25. The direction of the sandpaper 19 grinding the mold tray 5 is from top to bottom, so that the generated dust enters the recovery channel 25 from top to bottom. The outlet 26 of the recovery channel 25 is inclined upward, which can prevent dust from drifting. The direction of the sandpaper 19 grinding the mold tray 5 is from top to bottom, so that the generated dust can basically enter the recovery channel 25 from top to bottom, be sucked by the suction pump, and improve the efficiency of dust recovery. This design reduces the damage of dust to the operator's body.

[0153] As Figure 9The polishing component 3 pushes the sand cloth 19 close to the mold pressing tray 5 and pushes the roller 15 close to the upper surface of the mold pressing tray 5 through the cylinder piston 27. The cylinder piston 27 is located at the bottom 14 of the polishing component 3; when the cylinder piston 27 is opened, the cylinder piston 27 pushes the polishing component 3 to go up and enter the working state; when the cylinder piston 27 is closed, the polishing component 3 goes down and returns to the original position. After the edge of one mold pressing tray 5 is polished, the cylinder piston 27 is closed, the polishing component 3 goes down and returns to the original position, providing space for replacing a new mold pressing tray 5 which has not been polished. When the new mold pressing tray 5 which has not been polished is replaced, the cylinder piston 27 is started, the cylinder piston 27 pushes the polishing component 3 to go up, so that it enters the working state.

[0154] In the automatic edge polishing mechanism 1, the base 2 is provided with a groove 28 which matches the protrusion 29 at the bottom of the mold pressing tray 5; when the mold pressing tray 5 is placed on the base 2, the protrusion enters the groove 28, and the mold pressing tray 5 is positioned. The groove 28 of the base 2 can help the mold pressing tray 5 to be positioned and fixed, avoid the situation of improper position, and make the mold pressing tray 5 rotate more stably when the base 2 rotates. The number of the groove 28 and the protrusion 29 is consistent, including one or more, which are arranged uniformly on the bottom of the base 2 and the mold pressing tray 5 respectively. When the mold pressing tray 5 is fixed on the base 2, the mold pressing tray 5 should be fixed on the base 2 without moving during the polishing process, so that the polishing component 3 can polish the mold pressing tray 5 uniformly. In this embodiment, the base 2 is provided with a two-layer structure, the upper layer 30 is provided with the groove 28, and the lower layer 31 is provided with the sliding rail 8. The upper layer 30 and the lower layer 31 are fixed as an integrated structure, of course, the upper layer 30 and the lower layer 31 can also be designed as one layer, which is provided with the groove 28 above and the sliding rail 8 below, and the same function of the base 2 can also be achieved.

[0155] The automatic displacement mechanism 2 includes a clamping assembly 35 and a moving track 36. The clamping assembly 35 is connected with the moving track 36, and the clamping assembly 35 is used for grabbing the workpiece 4; the moving track 36 is used for carrying the clamping assembly 35 to displace.

[0156] As Figure 12As shown, the clamping assembly 35 includes a first clamping assembly 37 and a second clamping assembly 38, respectively disposed on both sides of the automatic edge grinding mechanism 1. The first clamping assembly 37 moves back and forth between the first position 39 and the automatic edge grinding mechanism 1, while the second clamping assembly 38 moves back and forth between the automatic edge grinding mechanism 1 and the second position 40. The first clamping assembly 37 is used to grip the workpiece 4 to be ground from the first position 39 and place it into the automatic edge grinding mechanism 1. The second clamping assembly 38 is used to grip the workpiece 4 that has been ground and place it into the second position 40. The first clamping assembly 37 and the second clamping assembly 38 need to operate simultaneously and work synchronously. That is, when the first clamping assembly 37 grips the workpiece 4 to be ground from the first position 39, the second clamping assembly 38 is also gripping the workpiece 4 that has been ground; when the first clamping assembly 37 places the workpiece 4 to be ground into the automatic edge grinding mechanism 1, the second clamping assembly 38 is also placing the workpiece 4 that has been ground into the second position 40. Synchronous operation can improve the operating efficiency of the clamping component 35. Synchronous control of the first clamping component 37 and the second clamping component 38 can not only ensure control accuracy, but also reduce control costs.

[0157] The automatic edge grinding mechanism 1 is located in the middle position, and the first clamping component 37 and the second clamping component 38 are respectively disposed on both sides of the automatic edge grinding mechanism 1. The workpiece 4 is a molding tray 5. The molding tray 5 is large in volume and heavy in weight. In order to facilitate use and reduce the risk of errors, the first clamping component 37 and the second clamping component 38 are preferably disposed on the left and right sides of the automatic edge grinding mechanism 1 respectively.

[0158] like Figure 13 The clamping assembly 35 includes a base 42, clamping plates 43, and a cylinder piston 44. The clamping plates 43 are located on the base 42. The cylinder piston 44 includes a first cylinder piston 45 and a second cylinder piston 46. The first cylinder piston 45 controls the raising and lowering of the base 42, and the second cylinder piston 46 controls the opening and closing of the clamping plates 43, thereby achieving the gripping and releasing of the workpiece 4. The base 42 matches the shape and size of the molding tray 5. Each clamping assembly 35 is provided with two clamping plates 43, which are respectively located on both sides of the base 42. When the clamping assembly 35 moves above the molding tray 5, the first cylinder piston 45 pushes the base 42 down to approach the molding tray 5, and then the second cylinder piston 46 pushes the clamping plates 43 to close and grip both sides of the molding tray 5. The second cylinder piston 46 is further divided into a left cylinder 47 and a right cylinder 48, which are used to control the opening and closing of the left and right clamping plates 43, respectively. When the second cylinder piston 46 is open, the two clamping plates 43 close towards the middle; when the second cylinder piston 46 is closed, the two clamping plates 43 open to both sides. The clamping plates 43 are unidirectional long clamping plates, which can make large-area contact with and clamp the edges 16 of the molding tray 5, ensuring a more stable clamping process and helping to achieve precise displacement of the molding tray 5.

[0159] likeFigure 12 The automatic displacement mechanism 2 further comprises a moving track 36 and a horizontal moving power source 37; the horizontal moving power source 37 is used to control the left and right movement of the clamping assembly 35 in the horizontal direction; the clamping assembly 35 is connected with the moving track 36 through a pulley 50. The horizontal moving power source 37 comprises a belt 51 and a belt pulley 52, the belt pulley 52 drives the belt 51 to move, and the upper end of the clamping assembly 35 is fixed on the belt 51 and can move left and right horizontally with the belt 51. The design of the moving track 36 can help to stabilize the moving direction of the clamping assembly 35 and prevent the position from deviating, which is equivalent to the combination of the belt 51 and the moving track 36, which provides double insurance for the repeated horizontal movement of the clamping assembly 35 and ensures the accuracy of the horizontal moving position.

[0160] As Figure 11 , 14, the automatic displacement mechanism 2 further comprises a positioning system 53, the positioning system 53 comprising an input positioning mechanism 54 and an output positioning mechanism 55; the input positioning mechanism 54 is used to place the workpiece 4 to be polished, and the output positioning mechanism 54 is used to place the polished workpiece 4. The positioning system 53 further comprises a positioning detection device 57, which is used to control the placement height position of the workpiece 4 to be polished and the polished workpiece 4. To realize the automatic displacement of the workpiece 4, the accuracy of the horizontal movement position must be ensured in two aspects, one aspect is that the clamping assembly 35 must strictly ensure the accuracy of the horizontal movement position, and the other aspect is that the placement of the workpiece 4 in the input positioning mechanism 54 and the output positioning mechanism 55 must also strictly ensure the accuracy of the horizontal movement position. If one of the two aspects is slightly deviated, it will directly affect the smooth operation of the automatic edge polishing assembly line, directly disrupt the rhythm of the assembly line, and cause significant losses. Therefore, the input positioning mechanism 54 and the output positioning mechanism 55 are respectively provided with a positioning detection device 57, which is respectively used to detect the workpiece placement height of the input positioning mechanism 54 and the output positioning mechanism 55, and the workpiece 4 placement position also needs to be parallel to the ground. In the embodiment, the workpiece 4 is a molded tray 5, and the input positioning mechanism 54 and the output positioning mechanism 55 are neatly stacked with multiple molded trays 5. When the molded tray 5 on the input positioning mechanism 54 is removed, its height will inevitably be lowered. At this time, if the remaining molded trays 5 are not moved upward to maintain the original height in time, the first clamping assembly 37 will not be able to smoothly grab the molded tray 5, affecting the overall progress. Therefore, the positioning detection device 57 must timely detect the stacking height of the molded tray 5 to be polished in the input positioning mechanism 54, and timely adjust, so that the first clamping assembly 37 can smoothly grab the molded tray 5 each time and smoothly place it into the automatic edge polishing mechanism 1. At the same time, when the molded tray 5 on the output positioning mechanism 55 is moved in, its height will inevitably be raised. At this time, if the molded tray 5 is not moved downward to maintain the original height in time, the second clamping assembly 38 will collide with the molded tray 5 when it goes down, causing damage to the second clamping assembly 38, and even a serious safety accident may occur. Therefore, the positioning detection device 57 must timely detect the stacking height of the molded tray 5 that has been polished in the output positioning mechanism 55, and timely adjust, so that the second clamping assembly 38 can smoothly place the molded tray 5 that has completed polishing to the output positioning mechanism 55 each time.

[0161] Preferably, the input positioning mechanism 54 and the output positioning mechanism 55 are both provided with a power source for up-and-down movement, which is used to control the height of the input positioning mechanism 54 and the output positioning mechanism 55, so as to control the placement height position of the workpiece 4 to be polished and the workpiece 4 that has been polished. The input positioning mechanism 54 and the output positioning mechanism 55 are both provided with a base plate 58, a traction chain 59, a gear 60 and a limiting block 61, the base plate 58 is used to place the workpiece 4, the traction chain 59 and the gear 60 are connected with the base plate 58 respectively, and the limiting block 61 is arranged on the base plate 58 and is used to limit the placement position of the workpiece 4. One end 591 of each traction chain 59 is connected with the base plate 58, and the other end 592 is connected with a cross beam 593 in a frame body 63, and the traction chain 59 drives the up-and-down displacement of the base plate 58 through the rotation of the first gear 601 on the intermediate telescopic rod. Meanwhile, a second gear 602 is arranged to be connected with the base bar 62, and the second gear 602 is also connected with the bottom of the base plate 58, when the second gear 602 rotates, it drives the base plate 58 to displace up and down along the base bar 62. The second gear 602 is uniformly provided with sawteeth, and the base bar 62 is also provided with a transmission gear that matches the gear and transmits the rotation distance of the gear, and each rotation corresponds to a height of about 1 cm, that is, the side of the base plate 58 is raised by about 1 cm. The traction chain 59 and the first gear 601 are respectively located on the two sides of the base plate 58 and drive the two sides of the base plate 58 respectively, when the traction chain 59 and the first gear 601 drive the base plate 58 upward, the second gear 602 and the base bar 62 drive one end of the base plate 58 upward, if the traction chain 59 and the first gear 601 drive upward too fast, or the speeds of the two traction chains 59 are inconsistent, the base plate 58 will be inclined, the cooperation between the second gear 602 and the base bar 62 will be loose, which promotes the second gear 602 to rotate faster, so that one end of the base plate 58 also rises faster, so that the base plate 58 always remains horizontal. Through the perfect cooperation of the gear 60 and the traction chain 59, the upper plane of the base plate 58 and the overlying mold pressing tray 5 above the base plate 58 always remain on a horizontal line and rise or fall uniformly. The mold pressing tray 5 is overlying on the base plate 58 of the input positioning mechanism 54, and the specific placement position of the mold pressing tray 5 is limited on a specific position by the limiting block 61, when the uppermost mold pressing tray 5 is removed by the first clamping assembly 37, the overall height becomes lower, then the positioning detection device 57 sends an indication, the traction chain 59 drives the base plate 58 to move upward, and the gear 60 starts to rotate to control the speed of the upward movement of the base plate 58 and keep the base plate 58 and the mold pressing tray 5 on a horizontal plane.

[0162] Preferably, the area of the base plate 58 is larger than the mold pressing tray 5, so that when the mold pressing tray 5 is placed on the base plate 58 of the input positioning mechanism 54, it is easy to have a deviation in the position of the mold pressing tray 5, which will directly affect the subsequent automatic displacement and automatic grinding effect. By providing a limiting block 61 on the base plate 58, when the mold pressing tray 5 is placed on the base plate 58, it needs to be placed by clamping the limiting block 61, which can quickly and accurately limit the position of the mold pressing tray 5, thereby simply and efficiently solving this problem.

[0163] Preferably, the position height of the mold pressing tray 5 in the input positioning mechanism 54, the position height of the mold pressing tray 5 in the automatic edge grinding mechanism 1, and the position height of the mold pressing tray 5 in the output positioning mechanism 55 are consistent. When the heights are consistent, the distance of the clamping assembly 35 (including the first clamping assembly 37 and the second clamping assembly 38) each time it goes down is consistent, which can accurately grab the mold pressing tray 5 and accurately displace it.

[0164] As Figure 1 Preferably, it also includes a frame body 63, the automatic edge grinding mechanism 1 is located at the middle position 64 of the frame body 63, and the automatic displacement mechanism 2 is separately arranged on the left and right sides of the frame body 63. The frame body 63 can provide support for the automatic edge grinding mechanism 1 and the automatic displacement mechanism 2. The workpiece 4 in the present embodiment is mainly the mold pressing tray 5, and since the mold pressing tray 5 after pressing has edge burrs, it needs to be automatically ground on the edge of the mold pressing tray 5.

[0165] Preferably, the automatic edge grinding device 32 further includes a control module (not shown in the figure), which includes a power supply device, a motor device, a driving device, a control device, and a display device. The power supply device is used for power supply, and when fixedly used, it uses a power plug with a ground wire, and when moved, it uses dry batteries or storage batteries. The motor device is used to provide rotating power for the base, and the driving device is realized by a stepping motor. The driving device provides driving force for automatic grinding of the grinding part 3, automatic grabbing and moving of the workpiece by the automatic displacement mechanism 2, etc. The control device controls the automatic edge grinding mechanism 1 and the automatic displacement mechanism 2 through the motor control device, the cylinder piston, the roller 22, the belt pulley 52, the roller shaft 15, the positioning detection device 57, etc. The control device controls the current size and direction to the motor through the motor control device, thereby controlling the driving device. The display device is used for the operator to issue instructions and obtain execution results, including displacement program, grinding program, positioning program, and the working state of each part is indicated by the color of the indicator light, such as power on, standby, and working.

[0166] Embodiment 2, automatic edge grinding method of mold pressing tray

[0167] The embodiment adopts the automatic edge grinding device provided in the embodiment 1 to automatically grind the mold tray, and the method comprises the following steps.

[0168] (1) The mold tray 5 is placed in the input positioning mechanism 54 of the automatic displacement mechanism 2, and the input positioning mechanism 54 adjusts the position height of the mold tray 5 by controlling the height of the base plate 58;

[0169] (2) The first clamping assembly 37 moves downward, grabs the mold tray 5, moves to the upper side of the automatic edge grinding mechanism 1, moves downward and places the mold tray 5 in the automatic edge grinding mechanism 1, and the automatic edge grinding mechanism 1 automatically grinds the mold tray 5;

[0170] (3) After the automatic edge grinding is completed, the second clamping assembly 38 moves to the upper side of the automatic edge grinding mechanism 1, moves downward, grabs the mold tray 5, moves to the upper side of the output positioning mechanism 55, moves downward and places the mold tray 5 in the output positioning mechanism 55, and the output positioning mechanism 55 adjusts the position height of the mold tray 5 by controlling the height of the base plate 58.

[0171] Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be the range defined by the claims.

Claims

1. An automatic edging device characterized by, The automatic edge grinding mechanism and the automatic displacement mechanism are included; the automatic edge grinding mechanism is used for automatic grinding of the workpiece to be ground; the automatic displacement mechanism is used for placing the workpiece to be ground into the automatic edge grinding mechanism or moving the workpiece after grinding out of the automatic edge grinding mechanism.

2. The automatic edging apparatus of claim 1, wherein The automatic edge grinding mechanism includes a base and a grinding component; the base is used for fixing the workpiece to be ground, and the grinding component is used for automatic grinding of the workpiece to be ground, and the grinding component is connected with the base through a connecting piece.

3. The automatic edging apparatus of claim 2, wherein, The base is provided with a moving component, which can drive the base to move, thereby driving the workpiece to be ground to move synchronously; the moving mode of the base includes horizontal rotation, vertical rotation, vertical reciprocating motion or horizontal reciprocating motion; the grinding component is slidably connected with the base through a connecting piece.

4. The automatic edging apparatus of claim 3, wherein The moving mode of the base is horizontal rotation, and the grinding component is slidably connected with the lower circular slide rail of the base through a connecting rod.

5. The automatic edging apparatus of claim 4, wherein, The connecting piece includes a connecting rod and a sliding block, and the sliding block is connected with the slide rail below the base; when the base rotates, the sliding block of the grinding component slides in the slide rail; the sliding block is a cylindrical structure, and the number of the cylindrical structure is one or more.

6. The automatic edging apparatus of claim 5, wherein, The cylindrical structure is fixed through the center, and the cylinder can rotate freely around the center; the number of the cylindrical structure is two.

7. The automatic edging apparatus of claim 6, wherein The length of the connecting piece is 5-20 cm, and the length of the connecting piece determines the distance between the grinding component and the base.

8. The automatic edging apparatus of claim 1, wherein, The workpiece includes a molded tray.

9. The automatic edging apparatus of claim 2, wherein, The grinding component is provided with a roller; during the edge grinding process, the roller is pressed above the workpiece to be ground and keeps rotating; the rotating speed of the roller matches the rotating speed of the base.

10. The automatic edging apparatus of claim 2, wherein, The grinding component is provided with a swing arm for adjusting the position of the grinding component to match the base; the swing arm can make the grinding component displace forward and backward in the horizontal plane; the base is a polygonal structure with edges, when the base rotates to the edge close to the grinding component, the grinding component displaces backward through the swing arm, and the center distance between the grinding component and the base becomes longer; when the base rotates to the side of the polygon close to the grinding component, the grinding component displaces forward through the swing arm, and the center distance between the grinding component and the base becomes shorter.

11. The automatic edging apparatus of claim 2, wherein One or more of the number of the grinding components are arranged around the base.

12. The automatic edging apparatus of claim 11, wherein, The number of the grinding components is two, which are arranged on both sides of the base.

13. The automatic edging apparatus of claim 2, wherein The grinding component further includes an abrasive cloth and a dust recovery system; the abrasive cloth is used for grinding the workpiece to be ground, and the dust recovery system is used for absorbing the dust generated during grinding.

14. The automatic edging apparatus of claim 13, wherein, The abrasive cloth is detachably fixed on the support; the support is provided with a roller, which is used to drive the abrasive cloth to rotate, thereby grinding the workpiece to be ground; the support is supported and fixed by the support column, when the support column is removed, the support is folded, and the abrasive cloth can be detached and replaced.

15. The automatic edging apparatus of claim 14, wherein, The dust recovery system includes a suction pump and a recovery channel; the suction pump is located on one side of the grinding mechanism, which is used to suck the dust generated during grinding, and the dust is recovered and concentrated through the recovery channel; the outlet of the recovery channel is upwardly inclined and located below the grinding position of the abrasive cloth.

16. The automatic edging apparatus of claim 2, wherein The polishing component is pushed close to the workpiece to be polished by the cylinder piston, and the roller is pushed close to the upper surface of the workpiece to be polished; the cylinder piston is located at the bottom of the polishing component; when the cylinder piston is opened, the cylinder piston pushes the polishing component to go up, and enters the working state; when the cylinder piston is closed, the polishing component goes down to the home position.

17. The automatic edging apparatus of claim 1, wherein The base is provided with a groove, the workpiece to be polished is a molded tray, and the groove is matched with the protrusions at the bottom of the molded tray; when the molded tray is placed on the base, the protrusions enter the groove, and the molded tray is positioned; the number of the groove and the protrusions is consistent, including one or more, and they are evenly arranged on the base and the bottom of the molded tray, respectively.

18. The automatic edging apparatus of claim 1, wherein, The automatic displacement mechanism includes a clamping assembly, the clamping assembly includes a first clamping assembly and a second clamping assembly, and is separately arranged on both sides of the automatic edge grinding mechanism; the first clamping assembly runs back and forth above the automatic edge grinding mechanism at the first position and the second position; the first clamping assembly is used to grab the workpiece to be polished from the first position and place it into the automatic edge grinding mechanism; the second clamping assembly is used to grab the workpiece that has completed polishing and place it into the second position.

19. The automatic edging apparatus of claim 18, wherein The clamping assembly includes a base, a clamping piece and a cylinder piston, and the clamping piece is located on the base; the cylinder piston includes a first cylinder piston and a second cylinder piston, the first cylinder piston is used to control the rising and falling of the base, and the second cylinder piston is used to control the opening and closing of the clamping piece, so as to realize the grabbing and placing of the workpiece.

20. The automatic edging apparatus of claim 19, wherein, The automatic displacement mechanism further includes a moving track and a horizontal moving power source; the horizontal moving power source is used to control the left and right movement of the clamping assembly in the horizontal direction; the clamping assembly is connected with the moving track through a pulley.

21. The automatic edging apparatus of claim 20, wherein, The horizontal moving power source includes a belt and a belt pulley, the belt pulley drives the belt to move, and the upper end of the clamping assembly is fixed on the belt, so that the clamping assembly can move left and right horizontally along with the belt.

22. The automatic edging apparatus of claim 21, wherein, The automatic displacement mechanism further includes a positioning system, and the positioning system includes an input positioning mechanism and an output positioning mechanism; the input positioning mechanism is used to place the workpiece to be polished, and the output positioning mechanism is used to place the polished workpiece.

23. The automatic edging apparatus of claim 22, wherein, The positioning system further includes a positioning detection device for controlling the placement height position of the workpiece to be polished and the polished workpiece.

24. The automatic edging apparatus of claim 23, wherein, The input positioning mechanism and the output positioning mechanism are both provided with an up-down motion power source for controlling the height of the input positioning mechanism and the output positioning mechanism, so as to control the placement height position of the workpiece to be polished and the polished workpiece.

25. The automatic edging apparatus of claim 24, wherein, The input positioning mechanism and the output positioning mechanism are both provided with a base plate, a traction chain, a gear and a limiting block, the base plate is used to place the workpiece, and the traction chain and the gear are connected with the base plate respectively; the gear is used to control the base plate to keep horizontal; the limiting block is arranged on the base plate and is used to limit the placement position of the workpiece.

26. The automatic edging apparatus of claim 25, wherein, Further including a frame body, the automatic edge grinding mechanism is located at the middle position of the frame body, and the automatic displacement mechanism is separately arranged on the left side and the right side of the frame body.

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