A device for continuously rounding the corners of pillars for solid wood furniture

Abstract

The present invention relates to the field of furniture processing, and specifically to a device for continuously rounding the edges and corners of pillars for solid wood furniture, comprising a feeding chain plate conveyor, a grinding belt being provided at one end of the feeding chain plate conveyor, the grinding belt being driven by a driving device and the driving device being also arranged on a lifting platform, a discharging belt conveyor being also provided at one end of the lifting platform, and an auxiliary edge and corner rounding device being also provided, the auxiliary edge and corner rounding device comprising a double-belt conveyor, an end positioning mechanism and a mobile rotating mechanism, the end positioning mechanism having several pairs, the mobile rotating mechanism having one pair, upper and lower material guiding mechanisms being respectively provided on both sides of the double-belt conveyor, and a material guiding device being provided between the double-belt conveyor and the feeding chain plate conveyor, the present application realizes the rounding treatment of the four edge corners of the pillar by the grinding belt one by one through the cooperation between the double-belt conveyor, the end positioning mechanism and the mobile rotating mechanism, thereby improving the processing efficiency of the pillar.

Description

Technical Field

[0001] The invention relates to the field of furniture processing, in particular to a device for continuously rounding edges and corners of pillars used in solid wood furniture. Background Art

[0002] Wood is often used as a material for making furniture. There are many types of furniture, and solid wood furniture is one of them. Solid wood furniture refers to furniture made of solid wood. Solid wood furniture has the characteristics of being natural, environmentally friendly, healthy, having a long service life, having a high value retention rate, and having a unique style. In solid wood furniture, the pillar as a structural member is used to play a supporting and stable role. Before using the pillar, its edges and corners need to be rounded and polished to avoid unnecessary collision and accidental injury. At present, when rounding and polishing the edges and corners of the pillars of solid wood furniture, the following problems exist: the existing polishing equipment can only round and polish the edges and corners of one furniture pillar at a time, and the polishing effect of the rounding of the furniture pillar corners is not ideal.

[0003] The currently disclosed Chinese patent CN202110927774.9 is a solid wood furniture pillar edge rounding and grinding equipment, including a base, a clamping unit and a grinding unit, the base is provided with a clamping unit and a grinding unit, the clamping unit is located at the rear side of the grinding unit, the clamping unit includes a clamping support, a lower support plate, a clamping strut, an upper support plate, a clamping cylinder, a clamping support chain and a driving assembly, a clamping support is provided on the front side of the upper surface of the base, the clamping support is hinged with a lower support plate, the clamping strut is symmetrically provided with clamping struts at the left and right ends of the upper surface of the lower support plate, the clamping strut is divided into an upper and lower part, and the two parts are slidably connected to each other, an upper support plate is commonly installed between the upper ends of the two clamping struts, a clamping cylinder is hinged between the upper surface of the base and the clamping strut, and a lower support plate is hinged between the upper surface of the base and the clamping strut. A clamping support chain is commonly provided between the support plate and the upper support plate, a driving assembly is provided on the upper surface of the upper support plate, the clamping support chain and the driving assembly are meshed through a bevel gear, the grinding unit comprises a grinding bracket, a grinding cylinder, a grinding roller, a grinding belt and a grinding motor, a grinding bracket is provided on the clamping support chain, a grinding cylinder is hinged between the upper surface of the base and the grinding bracket, a plurality of grinding rollers are rotatably provided on the grinding bracket, two grinding rollers are symmetrically provided at both ends of the lower part of the grinding bracket along its length direction, a plurality of grinding rollers are evenly provided on the upper part of the grinding bracket along its length direction, all the grinding rollers are connected by grinding belts, a grinding motor is installed on the grinding bracket, one end of one of the grinding rollers is fixedly connected to the output end of the grinding motor.

[0004] According to the above patent, the patent clamping branch chain clamps multiple furniture pillars at a time, so that the grinding unit can perform chamfering and grinding on the corners of multiple furniture pillars at a time. However, this method is too inefficient for grinding the pillars. The pillars need to be positioned each time before the chamfering process can be performed, which consumes too much time. Therefore, there is a need for a device that can continuously and evenly chamfer the four corners of the pillars while the pillars are being transported. Summary of the invention

[0005] Based on this, it is necessary to provide a continuous chamfering device for the edges and corners of pillars for solid wood furniture in response to the problems of the existing technology. The present application realizes the chamfering of the four corners of the pillar one by one by the grinding belt through the cooperation between the double-belt conveyor, the end positioning mechanism and the mobile rotating mechanism, thereby improving the processing efficiency of the pillar and saving time.

[0006] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0007] The present invention provides a device for continuously rounding the corners of pillars for solid wood furniture, comprising a feeding chain plate conveyor, a horizontally placed grinding belt is arranged at one end of the feeding chain plate conveyor in the output direction, the grinding belt is driven by a driving device, and the driving device is also arranged on a lifting platform, and a discharging belt conveyor is also arranged at one end of the lifting platform away from the feeding chain plate conveyor, and further comprising an auxiliary corner rounding device for driving the square pillars to move along the surface of the grinding belt so as to round the corners thereof, the auxiliary corner rounding device comprising a double-belt conveyor, an end positioning mechanism and a movable rotating mechanism, the double-belt conveyor is arranged between the feeding chain plate conveyor and the discharging belt The grinding belt is located in the double-belt conveyor, the end positioning mechanism has several pairs, each pair of end positioning mechanisms is symmetrically arranged on each conveyor belt of the double-belt conveyor, and the pairs of end positioning mechanisms are evenly spaced. There is a pair of mobile rotating mechanisms, and each mobile rotating mechanism is respectively arranged on the end positioning mechanism of each row, and the two sides of the double-belt conveyor are respectively provided with upper and lower material guiding mechanisms for prompting a pair of end positioning mechanisms to clamp the pillars and prompting the pillars to fall out after processing. There is also a material guiding device between the pair of end positioning mechanisms for guiding the pillars into place between the double-belt conveyor and the feed chain plate conveyor.

[0008] Preferably, the end positioning mechanism includes a fixed block, a bearing, an elastic connecting piece and a positioning clamping piece, the fixed block is fixedly connected to the conveyor belt surface of the double-belt conveyor, the outer ring of the bearing is fixed on the fixed block, the elastic connecting piece is connected to the inner ring of the bearing, and the positioning clamping piece is arranged on the elastic connecting piece.

[0009] Preferably, the elastic connecting member comprises a rotating column, a square plug rod and an end plate. The rotating column is coaxial with the inner ring of the bearing and fixedly connected. A square opening is opened in the center of the rotating column along its axial direction for the square plug rod to be inserted therein. The square plug rod can be telescopically movable in the square opening. The moving direction of the square plug rod is perpendicular to the conveying direction of the double-belt conveyor. The end plate is fixedly connected to the end of the square plug rod exposed from the square opening. The end plate and the rotating column are coaxial. A compression spring is also sleeved on the square plug rod. The two ends of the compression spring are respectively fixedly connected to the end face of the rotating column and the surface of the end plate, and the positioning clamping member is also installed on the inward surface of the end plate.

[0010] Preferably, the positioning clamp has four clamps evenly distributed in the circumferential direction of the end plate, with a slot for the end of the pillar to be inserted into being reserved between the four clamps. A guide wedge is also provided on the outer edge of one of the four clamps, with the inclined surface of the guide wedge facing the material guiding device. A gravity block is also provided on the periphery of the end plate and at a position of a clamp located below and adjacent to the guide wedge.

[0011] Preferably, the end positioning mechanism also includes a fixed-point alignment member for ensuring that the end of the pillar can be smoothly inserted into the four clamping plates when the pillar is inserted between the two end plates. The fixed-point alignment member has a pair, and the pair of fixed-point alignment members are symmetrically arranged on both sides of the double-belt conveyor and close to the position of the material guiding device. Each fixed-point alignment member has an iron block and an electromagnet. The iron block is installed on the rotating column and is symmetrical to the position of the gravity block. The electromagnet is in the shape of a rod and is arranged on the frame of the double-belt conveyor and is located directly above the rotating column at a position corresponding to the iron block.

[0012] Preferably, the mobile rotating mechanism includes a ring gear and a rack, a ring gear is fixedly mounted on each rotating column, the rack is fixedly mounted on the frame of the double-belt conveyor, the length direction of the rack is parallel to the conveying direction of the double-belt conveyor, and the teeth of each gear can engage with the rack.

[0013] Preferably, the loading and unloading guiding mechanism includes a guiding ring, a first guiding rod and a second guiding rod, a guiding ring is fixedly sleeved on each end plate, the first guiding rod and the second guiding rod are both arranged on the frame of the double-belt conveyor and are located above the double-belt conveyor, the length directions of the first guiding rod and the second guiding rod are both parallel to the conveying direction of the double-belt conveyor, a gap is left between the first guiding rod and the second guiding rod for the guiding ring to be inserted, the edges of the guiding rings are both chamfered, the two ends of the first guiding rod extend to the input end and the output end of the double-belt conveyor respectively, one end of the second guiding rod is connected to one end of the first guiding rod extending to the output end of the double-belt conveyor, the other end of the second guiding rod extends toward the direction of the discharging belt conveyor and its extending end is also connected to an outer extension rod inclined outwardly, and the position of the first guide rod relative to the second guide rod is also on the outside of the double-belt conveyor.

[0014] Preferably, the material guiding device includes a material guiding platform and a material guiding track, the material guiding platform is arranged at the output end of the feed chain plate conveyor, the feed chain plate conveyor has two conveying chains, the material guiding platform is located between the two conveying chains, the horizontal plane of the material guiding platform is higher than the conveying plane of the feed chain plate conveyor, the end of the material guiding platform close to the feed chain plate conveyor also has an upward slope and the bottom surface of the material guiding platform is also flush with the conveying plane of the feed chain plate conveyor, there is a pair of material guiding tracks, the pair of material guiding tracks are symmetrically arranged on both sides of the material guiding platform, and each material guiding track also has a track opening opened along the table top of the material guiding platform, and the end of each material guiding track also extends to the input end of the double-belt conveyor.

[0015] Preferably, the material feeding device also includes an electric rotating drum, which is arranged between the two material feeding tracks and close to the double-belt conveyor. The electric rotating drum is located above the two material feeding tracks. The axial direction of the electric rotating drum is perpendicular to the conveying direction of the double-belt conveyor, and three material removing plates are evenly arranged on the electric rotating drum along its circumferential direction.

[0016] Preferably, each chain plate of the feed chain plate conveyor has a first clamping plate and a second clamping plate, a gap is left between the first clamping plate and the second clamping plate for the pillar to be clamped, the height of the first clamping plate is greater than the height of the second clamping plate, the feed chain plate conveyor also has a pair of first limit plates for limiting the lateral movement of the pillar, and the two sides of the material guiding platform also have a pair of second limit plates for limiting the lateral movement of the pillar.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This application realizes the rotation of the pillar during the movement process through the cooperation between the double-belt conveyor, the end positioning mechanism and the mobile rotating mechanism, so that the grinding belt can round the four corners of the pillar one by one, improves the processing efficiency of the pillar, saves time, and ensures that the four corners of the pillar can be processed.

[0019] 2. The present application realizes that the pillar can be clamped between the two positioning clamps by connecting the positioning clamps and the bearings through elastic connecting parts, thereby ensuring the positioning of the pillar and the rotation of the pillar during movement, thereby improving the comprehensiveness of the rounding of the four corners of the pillar.

[0020] 3. The present application realizes the guidance of the guide wedge to move the pillar between the two end plates through the setting of the guide wedge and the action of the gravity block, thereby ensuring that the pillar can be smoothly clamped between the two end plates.

[0021] 4. The present application realizes that the pillar remains in a stable state when it is pushed between the two end plates through the cooperation between the electromagnet and the iron block, ensuring that the end of the pillar is smoothly clamped in the four clamping plates between the two end plates, thereby improving the positioning stability.

[0022] 5. The present application realizes the rotation of the pillar during the movement process through the cooperation between the ring gear and the rack, ensuring that the four corners of the pillar can contact the surface of the grinding belt, thereby improving the comprehensiveness of the chamfering processing of the four corners of the pillar. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present application;

[0024] Figure 2 is a top view of the present application;

[0025] Figure 3 yes Figure 2 Sectional view at AA;

[0026] Figure 4 It is a partial three-dimensional structural schematic diagram of the present application;

[0027] Figure 5 yes Figure 4 A top view of

[0028] Figure 6 It is a three-dimensional structural schematic diagram of a pair of end positioning mechanisms and a support in a clamped state;

[0029] Figure 7 yes Figure 6 A top view of

[0030] Figure 8 yes Figure 7 Cross-sectional view at BB;

[0031] Fig. 9 yes Figure 8 An enlarged schematic diagram of point C;

[0032] Fig.10 yes Figure 4 An enlarged schematic diagram of point D;

[0033] Fig.11 It is a three-dimensional structural schematic diagram of the end positioning mechanism;

[0034] Fig.12 yes Figure 5 An enlarged schematic diagram of point E;

[0035] Fig.13 It is a three-dimensional structural schematic diagram of the material introduction device;

[0036] Fig.14 yes Figure 3 Enlarged schematic diagram of point F.

[0037] The numbers in the figure are:

[0038] 1-feeding chain plate conveyor; 1a-first clamping plate; 1b-second clamping plate; 1c-first limiting plate; 1d-second limiting plate;

[0039] 2- Grinding belt;

[0040] 3- driving device;

[0041] 4-Lifting platform;

[0042] 5-Discharging belt conveyor;

[0043] 6- auxiliary edge rounding device; 6a- double belt conveyor; 6b- end positioning mechanism; 6b1- fixed block; 6b2- bearing; 6b3- elastic connector; 6b31- rotating column; 6b32- square plug rod; 6b33- end plate; 6b34- compression spring; 6b4- positioning clamping member; 6b41- clamping plate; 6b42- guide wedge block; 6b43- gravity block; 6b5- fixed point alignment member; 6b51- iron block; 6b52- electromagnet; 6c- mobile rotating mechanism; 6c1- ring gear; 6c2- rack; 6d- loading and unloading guide mechanism; 6d1- guide ring; 6d2- first guide rod; 6d3- second guide rod; 6d4- outer extension rod;

[0044] 7-feeding device; 7a-feeding platform; 7b-feeding track; 7c-electric rotary drum; 7c1-feeding plate;

[0045] 8- Pillar. DETAILED DESCRIPTION

[0046] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] like Figure 1-Figure 5 As shown, this application provides:

[0048] A device for continuously rounding the corners of pillars for solid wood furniture, comprising a feed chain plate conveyor 1, a horizontally placed grinding belt 2 is provided at one end of the feed chain plate conveyor 1 in the output direction, the grinding belt 2 is driven by a driving device 3 and the driving device 3 is also arranged on a lifting platform 4, and a discharging belt conveyor 5 is also provided at one end of the lifting platform 4 away from the feed chain plate conveyor 1, and also comprising an auxiliary corner rounding device 6 for driving a square pillar 8 to move along the surface of the grinding belt 2 so as to round its corners, the auxiliary corner rounding device 6 comprising a double-belt conveyor 6a, an end positioning mechanism 6b and a mobile rotating mechanism 6c, the double-belt conveyor 6a is arranged between the feed chain plate conveyor 1 and the discharging belt conveyor 5 The grinding belt 2 is located in the double-belt conveyor 6a, and the end positioning mechanism 6b has several pairs, and each pair of end positioning mechanisms 6b is symmetrically arranged on each conveyor belt of the double-belt conveyor 6a. The pairs of end positioning mechanisms 6b are evenly spaced. The mobile rotating mechanism 6c has a pair, and each mobile rotating mechanism 6c is respectively arranged on each row of the end positioning mechanisms 6b, and the two sides of the double-belt conveyor 6a are respectively provided with a pair of end positioning mechanisms 6b to clamp the pillar 8 and to cause the pillar 8 to fall out after processing. A material guiding device 7 between the pair of end positioning mechanisms 6b is also provided between the double-belt conveyor 6a and the feeding chain plate conveyor 1 to guide the pillar 8 to the position.

[0049] Based on the above embodiments, the technical problem that the present application intends to solve is how to round off the four corners of the pillar 8 during the conveying process. To this end, the present application places a batch of pillars 8 on the feeding chain plate conveyor 1. As the feeding chain plate conveyor 1 is started, the pillars 8 are conveyed in the direction of the feeding device 7. After the pillars 8 are conveyed to the position of the feeding device 7, the feeding device 7 then guides the pillars 8 in the direction of the double-belt conveyor 6a. Since a pair of end positioning mechanisms 6b on the double-belt conveyor 6a are in place, the pillars 8 are then guided to between the two end positioning mechanisms 6b, and the pillars 8 are positioned therein. Driven by the double-belt conveyor 6a and under the action of the mobile rotating mechanism 6c, the pair of end positioning mechanisms 6b rotate around their own midpoints when moving in the direction of the discharging belt conveyor 5, and the pillars 8 also rotate accordingly. The four corners of the pillars 8 will contact the grinding belt 2 one by one, As the driving device 3 drives the grinding belt 2, the grinding belt 2 grinds the corners of the pillar 8 and rounds them. The lifting platform 4 can adjust the height of the grinding belt 2 so that the grinding belt 2 can always be in contact with the corners of the pillar 8. When the pair of end positioning mechanisms 6b drives the pillar 8 to move, due to the setting of the loading and unloading guide mechanism 6d, the pair of end positioning mechanisms 6b will firmly clamp the pillar 8 therein during the movement, and the pillar 8 will not shake during the grinding process. After the pillar 8 leaves the grinding belt 2, under the action of the loading and unloading guide mechanism 6d, the pair of end positioning mechanisms 6b are opened, and the pillar 8 therein also falls onto the discharging belt conveyor 5. Finally, the discharging belt conveyor 5 sends the processed pillar 8 out for processing in subsequent processes.

[0050] Further, such as Figure 6-Figure 8 As shown:

[0051] The end positioning mechanism 6b includes a fixed block 6b1, a bearing 6b2, an elastic connecting member 6b3 and a positioning clamping member 6b4. The fixed block 6b1 is fixedly connected to the conveyor belt surface of the double-belt conveyor 6a, the outer ring of the bearing 6b2 is fixed on the fixed block 6b1, the elastic connecting member 6b3 is connected to the inner ring of the bearing 6b2, and the positioning clamping member 6b4 is arranged on the elastic connecting member 6b3.

[0052] Based on the above embodiments, the technical problem that the present application wants to solve is how a pair of end positioning mechanisms 6b can clamp the pillar 8 therein. To this end, the present application uses the composition of the end positioning structure, when the pillar 8 is pushed toward the direction of the pair of end positioning mechanisms 6b by the feed guide device 7, as the pillar 8 is continuously pushed, due to the connection between the positioning clamping member 6b4 and the bearing 6b2 through the elastic connecting member 6b3, the pillar 8 will push the positioning clamping members 6b4 at both ends outward, and as the pillar 8 is pushed between the two positioning clamping members 6b4, under the action of the elastic connecting member 6b3, the two positioning clamping members 6b4 return to the original position to clamp the pillar 8 therein, and as the double-belt conveyor 6a drives the movement of the pair of end positioning mechanisms 6b, and under the action of the mobile rotating mechanism 6c, the two positioning clamping members 6b4 drive the pillar 8 to rotate during the movement.

[0053] Further, such as Fig. 9 As shown:

[0054] The elastic connecting member 6b3 comprises a rotating column 6b31, a square plug rod 6b32 and an end plate 6b33. The rotating column 6b31 is coaxial with the inner ring of the bearing 6b2 and fixedly connected. A square opening is provided in the center of the rotating column 6b31 along its axial direction for the square plug rod 6b32 to be inserted therein. The square plug rod 6b32 can be telescopically movable in the square opening. The moving direction of the square plug rod 6b32 is perpendicular to the conveying direction of the double-belt conveyor 6a. The end plate 6b33 is fixedly connected to the end of the square plug rod 6b32 exposed from the square opening. The end plate 6b33 and the rotating column 6b31 are coaxial. A compression spring 6b34 is also sleeved on the square plug rod 6b32. The two ends of the compression spring 6b34 are respectively fixedly connected to the end face of the rotating column 6b31 and the surface of the end plate 6b33, and the positioning clamping member 6b4 is also installed on the inward surface of the end plate 6b33.

[0055] Based on the above embodiment, when the pillar 8 is pushed toward the two positioning clamping members 6b4, the end plate 6b33 is pressed outward, and the compression spring 6b34 changes from a normal state to a compressed state. After the pillar 8 is clamped into the two positioning clamping members 6b4, the compression spring 6b34 returns to a normal state, and the end plate 6b33 also returns to its original position. The two end plates 6b33 thus press the pillar 8 between them, thereby completing the positioning of the pillar 8.

[0056] Further, such as Fig.10 and Fig.11 As shown:

[0057] The positioning clamping member 6b4 has four clamping plates 6b41 evenly distributed in the circumferential direction around the end plate 6b33, and a clamping slot is reserved between the four clamping plates 6b41 for the end of the support 8 to be clamped in. A guide wedge 6b42 is also provided on the outer edge of one of the four clamping plates 6b41, and the inclined surface of the guide wedge 6b42 faces the material guiding device 7. A gravity block 6b43 is also provided on the periphery of the end plate 6b33 and at the position of a clamping plate 6b41 located below and adjacent to the guide wedge 6b42.

[0058] Based on the above embodiment, the technical problem that the present application wants to solve is how the positioning clamping member 6b4 positions the pillar 8. To this end, the present application guides the guide wedge 6b42, and as the pillar 8 is pushed between the two end plates 6b33, the pillar 8 will enter between the two end plates 6b33 along the inclined surface of the guide wedge 6b42, and the end of the pillar 8 will be limited between the corresponding four clamping plates 6b41, and the corners of the pillar 8 are exposed, which does not hinder the rounding of the corners by the grinding belt 2. In order to make the guide wedge 6b42 correspond to the feed guide device 7, the gravity of the gravity block 6b43 makes the installed part of the end plate 6b33 face downward, and the guide wedge 6b42 also faces the feed guide device 7, so that the pillar 8 can smoothly enter between the two end plates 6b33.

[0059] Further, such as Figure 9-11 As shown:

[0060] The end positioning mechanism 6b also includes a fixed-point alignment member 6b5 for ensuring that the end of the pillar 8 can be smoothly inserted into the four clamping plates 6b41 when the pillar 8 is inserted between the two end plates 6b33. The fixed-point alignment member 6b5 has a pair of fixed-point alignment members 6b5, which are symmetrically arranged on both sides of the double-belt conveyor 6a and close to the position of the material guiding device 7. Each fixed-point alignment member 6b5 has an iron block 6b51 and an electromagnet 6b52. The iron block 6b51 is installed on the rotating column 6b31 and is symmetrical to the position of the gravity block 6b43. The electromagnet 6b52 is in the shape of a rod. The electromagnet 6b52 is arranged on the frame of the double-belt conveyor 6a and is located directly above the rotating column 6b31 and can correspond to the iron block 6b51.

[0061] Based on the above embodiment, the technical problem that the present application intends to solve is how to ensure that the rotating column 6b31 is in a stable state when the pillar 8 is pushed between the two end plates 6b33. To this end, the present application attracts the iron block 6b51 on the rotating column 6b31 by the electromagnet 6b52, and the rotating column 6b31 is then placed still. After the pillar 8 is pushed between the two end plates 6b33, the end plates 6b33 will not rotate with the rotating column 6b31, so that the end of the pillar 8 can be smoothly clamped between the four clamping plates 6b41.

[0062] Further, such as Fig.10 As shown:

[0063] The mobile rotating mechanism 6c includes a ring gear 6c1 and a rack 6c2. A ring gear 6c1 is fixedly mounted on each rotating column 6b31. The rack 6c2 is fixedly arranged on the frame of the double-belt conveyor 6a. The length direction of the rack 6c2 is parallel to the conveying direction of the double-belt conveyor 6a, and the teeth of each gear can mesh with the rack 6c2.

[0064] Based on the above embodiments, the technical problem that the present application intends to solve is how the mobile rotating mechanism 6c causes the rotating column 6b31 to rotate during the movement of the double-belt conveyor 6a. To this end, the present application sets a ring gear 6c1 on each rotating column 6b31. When the double-belt conveyor 6a drives the end positioning mechanism 6b to move, the ring gear 6c1 thereon will pass through the rack 6c2. Since the ring gear 6c1 is meshed with the rack 6c2, the ring gear 6c1 will drive the rotating column 6b31 to rotate together, and the pillar 8 thus completes its self-rotation during the movement.

[0065] Further, such as Fig.12 As shown:

[0066] The loading and unloading guide mechanism 6d includes a guide ring 6d1, a first guide rod 6d2 and a second guide rod 6d3. A guide ring 6d1 is fixedly sleeved on each end plate 6b33. The first guide rod 6d2 and the second guide rod 6d3 are both arranged on the frame of the double-belt conveyor 6a and are located above the double-belt conveyor 6a. The length directions of the first guide rod 6d2 and the second guide rod 6d3 are parallel to the conveying direction of the double-belt conveyor 6a. A space is left between the first guide rod 6d2 and the second guide rod 6d3 for the guide ring 6d1 to be inserted. The edges of the guide ring 6d1 are chamfered, the two ends of the first guide rod 6d2 extend to the input end and the output end of the double-belt conveyor 6a respectively, one end of the second guide rod 6d3 is connected to one end of the first guide rod 6d2 extending to the output end of the double-belt conveyor 6a, the other end of the second guide rod 6d3 extends toward the direction of the discharge belt conveyor 5 and the extended end thereof is also connected to an outer extension rod 6d4 inclined outwardly, and the position of the first guide rod 6d2 relative to the second guide rod 6d3 is also on the outside of the double-belt conveyor 6a.

[0067] Based on the above embodiment, when a pair of end positioning mechanisms 6b clamp the pillar 8 therein and move along with the double-belt conveyor 6a, due to the guidance of the two first guide rods 6d2, the guide ring 6d1 on each end plate 6b33 moves along the first guide rod 6d2, thereby avoiding the lateral shaking of the end plate 6b33 when the grinding belt 2 grinds the corners of the pillar 8. Since the two guide rods limit the end plates 6b33 on both sides therein, the two end plates 6b33 are always in the process of moving. The pillar 8 is pressed tightly therein, and when the pillar 8 moves out of the grinding belt 2, due to the setting of the outer extension rod 6d4 on the second guide rod 6d3, when the guide ring 6d1 moves along the outer extension rod 6d4, the guide ring 6d1 will be pushed outward with the end plate 6b33, and the pillar 8 between the two end plates 6b33 will be released, and the pillar 8 will fall out. In addition, the setting of the chamfered edge of the guide ring 6d1 also allows the guide ring 6d1 to move smoothly along the first guide rod 6d2 and the second guide rod 6d3.

[0068] Further, such as Fig.13 and Fig.14 As shown:

[0069] The material guiding device 7 includes a material guiding platform 7a and a material guiding track 7b. The material guiding platform 7a is arranged at the output end of the feed chain plate conveyor 1. The feed chain plate conveyor 1 has two conveying chains. The material guiding platform 7a is located between the two conveying chains. The horizontal plane of the material guiding platform 7a is higher than the conveying plane of the feed chain plate conveyor 1. The end of the material guiding platform 7a close to the feed chain plate conveyor 1 also has an upward slope and the bottom surface of the material guiding platform 7a is also flush with the conveying plane of the feed chain plate conveyor 1. There is a pair of material guiding tracks 7b, and the pair of material guiding tracks 7b are symmetrically arranged on both sides of the material guiding platform 7a, and each material guiding track 7b also has a track opening opened along the table top of the material guiding platform 7a, and the end of each material guiding track 7b also extends to the input end of the double-belt conveyor 6a.

[0070] Based on the above embodiment, when the feeding chain plate conveyor 1 drives the pillar 8 to move, the pillar 8 will be pushed to the surface of the material introducing platform 7a, and the pillar 8 will then enter the material introducing track 7b.

[0071] Further, such as Fig.14 As shown:

[0072] The feeding device 7 also includes an electric rotating drum 7c, which is arranged between the two feeding rails 7b and close to the double-belt conveyor 6a. The electric rotating drum 7c is located above the two feeding rails 7b. The axial direction of the electric rotating drum 7c is perpendicular to the conveying direction of the double-belt conveyor 6a, and three feeding plates 7c1 are evenly arranged on the electric rotating drum 7c along its circumferential direction.

[0073] Based on the above embodiment, when the pillar 8 is on the surface of the material feeding platform 7a, the electric rotary drum 7c rotates 120°, and the material shifting plate 7c1 thereon shifts the pillar 8 along the material feeding track 7b toward the direction of the end positioning mechanism 6b, and the pillar 8 is pushed between the two end plates 6b33.

[0074] Further, such as Fig.14 As shown:

[0075] Each chain plate of the feed chain plate conveyor 1 has a first clamping plate 1a and a second clamping plate 1b, and a gap is left between the first clamping plate 1a and the second clamping plate 1b for the pillar 8 to be clamped in. The height of the first clamping plate 1a is greater than the height of the second clamping plate 1b. The feed chain plate conveyor 1 also has a pair of first limit plates 1c for limiting the lateral movement of the pillar 8, and the two sides of the material guiding platform 7a also have a pair of second limit plates 1d for limiting the lateral movement of the pillar 8.

[0076] Based on the above embodiment, when the pillar 8 is placed on the feed chain plate conveyor 1, the pillar 8 is clamped between the first clamping plate 1a and the second clamping plate 1b. As the pillar 8 is conveyed, the pillar 8 will be pushed out of the second clamping plate 1b along the upper slope of the material guiding platform 7a. As the feed chain plate conveyor 1 continues to convey, the first clamping plate 1a will continue to push the pillar 8 along the horizontal plane of the material guiding platform 7a until the first clamping plate 1a can no longer push the pillar 8. Then the pillar 8 comes to the position of the electric rotating drum 7c. In the process of conveying and pushing the pillar 8, the restriction of the pillar 8 by a pair of first limit plates 1c and a pair of second limit plates 1d prevents the pillar 8 from moving horizontally along the conveying direction perpendicular to the feed chain plate conveyor 1, so that the pillar 8 can be smoothly clamped between the two end positioning mechanisms 6b.

[0077] The present application realizes the rounding of the four corners of the pillar 8 by the grinding belt 2 one by one through the cooperation between the double-belt conveyor 6a, the end positioning mechanism 6b and the mobile rotating mechanism 6c, thereby improving the processing efficiency of the pillar 8 and saving time.

[0078] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A device for continuously rounding the corners of pillars for solid wood furniture, comprising a feed chain plate conveyor (1), a horizontally placed grinding belt (2) being provided at one end of the feed chain plate conveyor (1) in the output direction, the grinding belt (2) being driven by a driving device (3) and the driving device (3) being further arranged on a lifting platform (4), and a discharge belt conveyor (5) being further arranged at one end of the lifting platform (4) away from the feed chain plate conveyor (1), characterized in that: The invention also includes an auxiliary corner rounding device (6) for driving a square pillar (8) to move along the surface of the grinding belt (2) so as to round its corners. The auxiliary corner rounding device (6) includes a double-belt conveyor (6a), an end positioning mechanism (6b) and a movable rotating mechanism (6c). The double-belt conveyor (6a) is arranged between the feeding chain plate conveyor (1) and the discharging belt conveyor (5). The grinding belt (2) is located in the double-belt conveyor (6a). The end positioning mechanism (6b) has a plurality of pairs. Each pair of end positioning mechanisms (6b) is symmetrically arranged on each conveyor belt of the double-belt conveyor (6a). A plurality of pairs of end positioning mechanisms (6b) are distributed at equal intervals, a pair of mobile rotating mechanisms (6c) are provided, each mobile rotating mechanism (6c) is respectively arranged on each row of end positioning mechanisms (6b), and loading and unloading guiding mechanisms (6d) are respectively provided on both sides of the double-belt conveyor (6a) for prompting the pair of end positioning mechanisms (6b) to clamp the pillar (8) and for prompting the pillar (8) to fall out after processing, and a guiding device (7) is also provided between the double-belt conveyor (6a) and the feeding chain plate conveyor (1) for guiding the pillar (8) to a position between the pair of end positioning mechanisms (6b); The end positioning mechanism (6b) comprises a fixed block (6b1), a bearing (6b2), an elastic connecting piece (6b3) and a positioning clamping piece (6b4); the fixed block (6b1) is fixedly connected to the conveyor belt surface of the double-belt conveyor (6a); the outer ring of the bearing (6b2) is fixed to the fixed block (6b1); the elastic connecting piece (6b3) is connected to the inner ring of the bearing (6b2); and the positioning clamping piece (6b4) is arranged on the elastic connecting piece (6b3); The elastic connecting member (6b3) comprises a rotating column (6b31), a square plug rod (6b32) and an end plate (6b33). The rotating column (6b31) is coaxial with the inner ring of the bearing (6b2) and is fixedly connected. A square opening is provided at the center of the rotating column (6b31) along its axial direction for the square plug rod (6b32) to be inserted therein. The square plug rod (6b32) can be telescopically moved in the square opening. The moving direction of the square plug rod (6b32) is perpendicular to the conveying direction of the double-belt conveyor (6a). In the conveying direction, the end plate (6b33) is fixedly connected to the end of the square plug rod (6b32) exposed from the square opening, the end plate (6b33) and the rotating column (6b31) are coaxial, a compression spring (6b34) is sleeved on the square plug rod (6b32), the two ends of the compression spring (6b34) are respectively fixedly connected to the end surface of the rotating column (6b31) and the surface of the end plate (6b33), and the positioning clamping member (6b4) is also installed on the inwardly facing surface of the end plate (6b33); The positioning clamping member (6b4) comprises four clamping plates (6b41) uniformly distributed in the circumferential direction around the end plate (6b33), a clamping slot for the end of the support (8) to be clamped in is reserved between the four clamping plates (6b41), a guide wedge (6b42) is further provided on the outer edge of one of the four clamping plates (6b41), the inclined surface of the guide wedge (6b42) faces the material guiding device (7), and a gravity block (6b43) is further provided on the periphery of the end plate (6b33) and at a position of a clamping plate (6b41) located below and adjacent to the guide wedge (6b42); The end positioning mechanism (6b) further comprises a fixed-point alignment member (6b5) for ensuring that the end of the support (8) can be smoothly inserted into the four clamping plates (6b41) when the support (8) is inserted between the two end plates (6b33). The fixed-point alignment member (6b5) comprises a pair of fixed-point alignment members (6b5), which are symmetrically arranged on both sides of the double-belt conveyor (6a) and close to the material guiding device (7). Each fixed-point alignment member (6b5) comprises an iron block (6b51) and an electromagnet (6b52). The iron block (6b51) is mounted on the rotating column (6b31) and is symmetrical to the position of the gravity block (6b43). The electromagnet (6b52) is in the shape of a rod and is arranged on the frame of the double-belt conveyor (6a) and is located at a position directly above the rotating column (6b31) and corresponding to the iron block (6b51). The mobile rotating mechanism (6c) comprises a ring gear (6c1) and a rack (6c2), each rotating column (6b31) is fixedly sleeved with a ring gear (6c1), the rack (6c2) is fixedly arranged on the frame of the double-belt conveyor (6a), the length direction of the rack (6c2) is parallel to the conveying direction of the double-belt conveyor (6a), and the gear teeth of each gear can mesh with the rack (6c2); The loading and unloading guide mechanism (6d) comprises a guide ring (6d1), a first guide rod (6d2) and a second guide rod (6d3); a guide ring (6d1) is fixedly sleeved on each end plate (6b33); the first guide rod (6d2) and the second guide rod (6d3) are both arranged on the frame of the double-belt conveyor (6a) and are located above the double-belt conveyor (6a); the length directions of the first guide rod (6d2) and the second guide rod (6d3) are both parallel to the conveying direction of the double-belt conveyor (6a); a space for the guide ring (6d1) is left between the first guide rod (6d2) and the second guide rod (6d3) The gap is inserted, the edges of the guide ring (6d1) are chamfered, the two ends of the first guide rod (6d2) extend to the input end and the output end of the double-belt conveyor (6a) respectively, one end of the second guide rod (6d3) is connected to one end of the first guide rod (6d2) extending to the output end of the double-belt conveyor (6a), the other end of the second guide rod (6d3) extends in the direction of the discharge belt conveyor (5) and its extended end is also connected to an outer extension rod (6d4) inclined outwardly, and the position of the first guide rod (6d2) relative to the second guide rod (6d3) is also outside the double-belt conveyor (6a).

2. The device for continuously rounding corners of pillars for solid wood furniture according to claim 1, characterized in that: The material guiding device (7) comprises a material guiding platform (7a) and a material guiding track (7b). The material guiding platform (7a) is arranged at the output end of the feed chain plate conveyor (1). The feed chain plate conveyor (1) has two conveying chains. The material guiding platform (7a) is located between the two conveying chains. The horizontal plane of the material guiding platform (7a) is higher than the conveying plane of the feed chain plate conveyor (1). The end of the material guiding platform (7a) close to the feed chain plate conveyor (1) also has an upward slope, and the bottom surface of the material guiding platform (7a) is also in a flush state with the conveying plane of the feed chain plate conveyor (1). There is a pair of material guiding tracks (7b), which are symmetrically arranged on both sides of the material guiding platform (7a), and each material guiding track (7b) also has a track opening opened along the table top of the material guiding platform (7a). The end of each material guiding track (7b) also extends to the input end of the double-belt conveyor (6a).

3. The device for continuously rounding corners of pillars for solid wood furniture according to claim 2, characterized in that: The material guiding device (7) further comprises an electric rotating drum (7c), which is arranged between the two material guiding tracks (7b) and close to the double-belt conveyor (6a). The electric rotating drum (7c) is located above the two material guiding tracks (7b), the axis direction of the electric rotating drum (7c) is perpendicular to the conveying direction of the double-belt conveyor (6a), and three material shifting plates (7c1) are evenly arranged on the electric rotating drum (7c) along its circumferential direction.

4. The device for continuously rounding corners of pillars for solid wood furniture according to claim 2, characterized in that: Each chain plate of the feed chain plate conveyor (1) has a first clamping plate (1a) and a second clamping plate (1b), a gap for a support (8) to be clamped in is left between the first clamping plate (1a) and the second clamping plate (1b), the height of the first clamping plate (1a) is greater than the height of the second clamping plate (1b), the feed chain plate conveyor (1) also has a pair of first limit plates (1c) for limiting the lateral movement of the support (8), and the two sides of the material guide platform (7a) also have a pair of second limit plates (1d) for limiting the lateral movement of the support (8).

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