Automatic unloading device

Abstract

The present application provides an automatic unloading device, comprising: a driven sprocket, the driven sprocket is used to cooperate with the conveyor chain of the production line to realize rotation, and the outer peripheral side of the driven sprocket has a plurality of chain tooth grooves; a base assembly, the base assembly and the driven sprocket are circumferentially linked; a picking mechanism, the picking mechanism and the chain tooth grooves are matched in number, each picking mechanism is slidably installed on the base assembly, and each group of picking mechanisms is respectively arranged opposite to each chain tooth groove; a guiding mechanism, the picking mechanism and the guiding mechanism cooperate with each other to realize automatic lifting when the picking mechanism rotates to the vicinity of the first station node; a control mechanism, the control mechanism is connected to each group of picking mechanisms at the same time, and is used to control the clamping action of the picking mechanism at the first station node and the second station node respectively. Based on this, the automatic unloading operation of the bottle body can be realized without setting a driving component, which is conducive to reducing the energy consumption of the equipment and has an energy-saving effect while saving manpower.

Description

Technical Field

[0001] The present application relates to the field of bottle production equipment, and in particular to an automatic unloading device. Background Art

[0002] Bottles of various shapes and materials are common in people's lives. These bottles are mostly used as containers for various liquids or gases. During automatic production, bottles need to go through a series of processing techniques, including bottle body molding, surface decoration and printing, assembly and post-processing, finished product inspection and quality control, and blanking collection. Among them, when the bottle body is processed during the surface decoration process or by spraying or coating, the bottle body is often inverted so that the bottle mouth is inserted into the corresponding product jig. At this time, the conveying mechanism drives the various product jigs to move in order, allowing each bottle body to enter the spraying station for spraying or enter the electroplating station for coating.

[0003] After the bottle is produced and inspected, it needs to be removed from the product jig for easy collection. On existing automatic production lines, the automatic unloading device typically includes a conveying mechanism for conveying the product, a positioning mechanism for fixing the product jig, and a clamping mechanism for clamping the bottle. Once the product jig is successfully positioned on the positioning mechanism, the clamping mechanism can move to the outside of the bottle, clamp the bottle, and then lift it upward, allowing the bottle to be smoothly removed from the product jig. However, in this process, whether it is the conveying mechanism, the positioning mechanism, or the clamping mechanism, all need to be driven by a drive component such as a motor or cylinder, resulting in high energy consumption and requiring improvement. Summary of the Invention

[0004] Based on this, the present application provides an automatic unloading device that can realize automatic unloading operations of bottles without setting up a driving component, thereby saving manpower and energy.

[0005] The automatic unloading device provided in this application adopts the following technical solution:

[0006] An automatic unloading device, comprising:

[0007] The driven sprocket is used to cooperate with the conveyor chain of the production line to achieve rotation. The outer peripheral side of the driven sprocket has multiple sprocket grooves. Each link of the conveyor chain is installed with a product fixture. At the first workstation node, the sprocket groove matches and engages with the driven sprocket. At this time, the central axis of the product fixture coincides with the center of the sprocket groove;

[0008] Base assembly, circumferential linkage between the base assembly and the driven sprocket;

[0009] The number of the retrieving mechanisms matches the number of the sprocket slots. Each retrieving mechanism is slidably mounted on the base assembly, and each group of retrieving mechanisms is respectively arranged opposite to each sprocket slot.

[0010] The guiding mechanism and the retrieving mechanism cooperate with each other to realize automatic lifting when the retrieving mechanism rotates to the node near the first station;

[0011] The control mechanism is connected to each group of material taking mechanisms at the same time, and is used to control the clamping action of the material taking mechanisms at the first workstation node and the second workstation node respectively.

[0012] By adopting the above-mentioned technical solution, the driven sprocket provided in the present application cooperates with the conveyor chain of the production line. When the conveyor chain on the production line is transported forward under the drive of the power component, it can drive the driven sprocket to rotate around its own central axis, thereby enabling the base assembly and each group of material-picking mechanisms installed on the base assembly to rotate together with the driven sprocket, without the need for additional driving components.

[0013] The present application defines the meshing position of the conveyor chain and the driven sprocket as the first station node. Based on this, when the product jig and the bottle body on the product jig are transported to a position close to the first station node along the conveyor chain, since the picking mechanism is arranged opposite to the chain tooth groove, the picking mechanism can gradually move downward under the guidance of the guide mechanism and accurately locate on the outside of the bottle body, and when it is at the first station node, the picking mechanism can be forced to move and clamp the bottle body through the control mechanism. Then, as the picking mechanism continues to rotate to the second node position, the picking mechanism can gradually slide upward and take the bottle body away from the product jig, thereby realizing the automatic picking operation of the bottle body. Based on this, the automatic unloading device of the present application can realize the automatic unloading operation of the bottle body without setting a driving component, which is conducive to reducing the energy consumption of the equipment, saving manpower and having energy-saving effects.

[0014] Optionally, the material-retrieving mechanism includes a slide block and a pneumatic clamp fixedly connected to the bottom of the slide block, and the slide block is vertically slidably mounted on the base assembly; each pneumatic clamp is connected to a control mechanism for controlling the opening and closing action of the pneumatic clamp;

[0015] The guiding mechanism includes a fixed first guide seat and a guide wheel installed on the side of the sliding block. The outer peripheral surface of the first guide seat is provided with a guide groove. The guide groove includes a high-position section and a low-position section connected end to end, and the transition between the two is smooth. The guide wheel is normally located in the guide groove. When the sliding block is close to the first workstation node, the guide wheel is located in the low-position section.

[0016] By adopting the above-mentioned technical solution, the guide wheel of the slide block is always located in the guide groove. Since the first guide seat is fixed, when the driven sprocket rotates circumferentially under the drive of the conveyor chain, the guide wheel can circulate between the high section and the low section. It should be noted here that under normal conditions, the guide wheel is located in the high section, at which time the pneumatic clamp of the material picking mechanism is in a higher position; when a chain tooth groove of the driven sprocket rotates and approaches the first workstation node, the guide wheel gradually moves downward and enters the low section, enabling the slide block and the pneumatic clamp to move downward to the outside of the bottle body, and then the bottle body can be smoothly clamped through the control mechanism.

[0017] Optionally, the control mechanism includes a first plate frame, an air reservoir, a valve assembly and a second guide seat, wherein the first plate frame and the driven sprocket are circumferentially linked; the air reservoir is fixed to the first plate frame and is used to connect to an external air supply pipeline;

[0018] The valve assembly is fixedly mounted on the first plate frame, the number of valve assemblies matches the number of sliding blocks, the air inlet port of each valve assembly is connected to the air reservoir through an air pipe, and the air outlet port of each valve assembly is connected to each pneumatic clamping jaw respectively;

[0019] The second guide seat is fixedly arranged and located on the outer peripheral side of all valve components. An extension portion is partially provided on the inner peripheral surface of the second guide seat. When the material picking mechanism is between the first station node and the second station node, the valve component rests against the extension portion and is in an open state.

[0020] By adopting the above-mentioned technical solution, the external air supply pipeline is connected to the air cylinder, which can continuously provide air pressure to the air cylinder, and the air pressure can be respectively delivered to the pneumatic clamp through each valve assembly to control the clamping action of the pneumatic clamp; due to the circumferential linkage between the first plate frame and the driven sprocket, when the driven sprocket rotates circumferentially driven by the conveyor chain, each valve assembly can move along the inner ring of the second guide seat; the valve assembly of the present application is in a closed state in the initial state, and when the material picking mechanism moves between the first node station and the second node station, the valve assembly can partially rest against the extension part and be in an open state. At this time, the air pressure in the air cylinder can enter the corresponding pneumatic clamp through the valve assembly, thereby forcing the pneumatic clamp to move and smoothly clamp the bottle body.

[0021] Optionally, the valve assembly includes a valve seat fixed to the first plate frame and a valve connector movably connected to the valve seat, and a reset member is provided between the valve connector and the valve seat, and the reset member is used to force the valve connector to be in a normally extended state; the pneumatic clamp is connected to the valve connector through an air pipe, and when the material picking mechanism is between the first workstation node and the second workstation node, the valve connector presses against the extension part and moves inward.

[0022] By adopting the above technical solution, the valve joint normally moves outward through the built-in reset member. When the first plate frame rotates circumferentially with the driven sprocket, since the second guide seat is fixed, the valve joint can gradually rotate to a position abutting against the extension portion. At this time, the valve joint gradually moves inward, and the valve joint and the valve seat are in a connected state. The air pressure can be smoothly transmitted to the pneumatic clamp through the air pipe, which can enable the pneumatic clamp to move smoothly and clamp the bottle body.

[0023] Optionally, the base assembly includes a base body and multiple support seats installed on the base body, and all support seats are equidistantly arranged along the outer edge of the base body; each support seat is fixed with a column plate, and the sliding column block is vertically slidably installed on the column plate.

[0024] By adopting the above-mentioned technical solution, the support seat and the column plate can be used as a fixed carrier of the material-grabbing mechanism, which has the advantage of convenient processing; by arranging multiple support seats equidistantly around the outer edge of the base body, each group of material-grabbing mechanisms can be conveniently installed on each column plate, which is convenient for the processing and assembly of the equipment components.

[0025] Optionally, the two movable ends of the pneumatic clamp are respectively hinged with clamp seats, and adjacent side surfaces of the two clamp seats are respectively provided with elastic pads.

[0026] By adopting the above technical solution, the pneumatic clamping jaws are pressed against the outer surface of the bottle body through two elastic pads when the pneumatic clamping jaws are in operation, which can reduce the damage to the bottle body. At the same time, since the clamp seat is hinged to the movable end of the pneumatic clamping jaws, the pneumatic clamping jaws can improve their adaptability to clamping bottles of different sizes, thereby making the automatic unloading device suitable for automatic unloading operations of bottles of various models and sizes.

[0027] Optionally, the automatic unloading device also includes:

[0028] The auxiliary mechanism includes a second plate frame and a plurality of clamping assemblies slidably arranged on the second plate frame, and the second plate frame is circumferentially linked with the driven sprocket; the number of the clamping assemblies matches the number of the sprocket grooves, and each clamping assembly is arranged directly opposite to each sprocket groove;

[0029] The traction mechanism cooperates with each group of clamping components to realize the automatic outward movement of the clamping components when they are close to the first workstation node.

[0030] By adopting the above-mentioned technical solution, for the production operation of some bottles, it may be necessary to seal the mouth of the bottle body, so the product jig needs to have a sealing part to block the mouth of the bottle body; based on this, the present application also provides an auxiliary mechanism, in which the second plate frame of the auxiliary mechanism is also circumferentially linked with the driven sprocket, so that when the driven sprocket follows the rotation of each conveyor chain belt, each group of clamping components can always remain opposite to each chain tooth groove; when the material picking mechanism rotates to the first workstation node and successfully clamps the bottle body, the clamping component can automatically move outward under the drive of the traction mechanism, gradually protecting the sealing part of the product jig, and then in the process of the material picking mechanism driving the bottle body to gradually move upward, the clamping component can press the product jig, thereby reducing the situation where the product jig is lifted up along with the bottle body.

[0031] Optionally, the clamping assembly includes a clamping seat and two yaw clamping arms rotatably mounted on the clamping seat, an elastic member is provided between the two yaw clamping arms, and the elastic member is used to force the two yaw clamping arms to rotate toward each other; the adjacent sides of the two yaw clamping arms are respectively provided with limit grooves, and when the clamping assembly is located at the first workstation node, the center of the area enclosed by the two limit grooves coincides with the center of the chain tooth groove.

[0032] By adopting the above-mentioned technical solution, when the product jig and the bottle body are conveyed forward together with the conveyor chain and gradually approach the first workstation node, the clamping assembly can be driven by the traction mechanism to gradually move toward the direction close to the product jig, and the two deflection clamping arms can rotate away from each other and gradually squeeze the elastic member when gradually reaching the blocking portion, so that the product jig can smoothly enter between the two limit grooves; then, the elastic force of the elastic member acting on the two deflection clamping arms forces the two deflection clamping arms to reset to the initial position, and at the first workstation node, the center of the area enclosed by the two limit grooves can coincide with the center of the product jig, thereby enabling the two deflection clamping arms to smoothly protect the product jig, reducing the possibility of the product jig being lifted up along with the bottle body.

[0033] Optionally, the traction mechanism includes a fixed third guide seat and a plurality of traction wheels correspondingly connected to each clamping assembly, the third guide seat is provided with a cam groove, and the traction wheel is normally located in the cam groove;

[0034] The cam groove includes an inner edge section and an outer edge section connected end to end. The distance from the inner edge section to the center of the third guide seat is smaller than the distance from the outer edge section to the center of the third guide seat, and there is a smooth transition between the two; when the clamping assembly is close to the first workstation node, the traction wheel is located in the outer edge section.

[0035] By adopting the above-mentioned technical solution, the traction wheel of the clamping assembly is always located in the cam groove. Since the third guide seat is fixed, when the driven sprocket rotates circumferentially under the drive of the conveyor chain, the guide wheel can circulate between the inner edge section and the outer edge section. It should be noted that the clamping assembly is normally located between the sprocket groove and the center of the driven sprocket, and the traction wheel is located in the inner edge section. When a sprocket groove of the driven sprocket rotates to a position close to the first workstation node, the traction wheel can gradually enter the outer edge area, thereby forcing the clamping assembly to gradually move outward and protect the product fixture, thereby reducing the possibility of the product fixture being lifted along with the bottle body.

[0036] Optionally, the device body also includes an adjustment mechanism for adjusting the height of the auxiliary mechanism. The adjustment mechanism includes a fixed screw hoist and a lifting platform movably connected to the screw rod of the screw hoist. The auxiliary mechanism is partially against the lifting platform under normal conditions due to its own gravity.

[0037] By adopting the above-mentioned technical solution, the auxiliary mechanism in this application can remain against the lifting platform under the action of gravity, and the lifting platform can be raised and lowered by controlling the spiral elevator, thereby adjusting the height of the auxiliary mechanism, so that when producing bottles of different models and sizes and selecting product jigs of different sizes, the auxiliary mechanism can be adjusted to a suitable position, which is suitable for the production of bottles of various models and sizes.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] 1. The automatic unloading device of the present application can realize the automatic unloading operation of the bottle body without providing a driving component, which is conducive to reducing the energy consumption of the equipment, saving manpower and achieving energy-saving effects;

[0040] 2. By setting up a valve assembly, when the material picking mechanism is between the first node station and the second node station, the valve assembly can partially abut against the extension part and be in an automatically open state, so that the pneumatic gripper can move and smoothly grip the bottle body;

[0041] 3. By setting up a clamping assembly, when the material picking mechanism reaches the first workstation node and successfully clamps the bottle body, the clamping assembly can automatically move outward and press the product fixture under the drive of the traction mechanism, reducing the situation where the product fixture is lifted up along with the bottle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 Schematic diagram of the overall structure of the automatic unloading device of this embodiment;

[0043] Figure 2 This is a structural diagram of the automatic unloading device with a single set of material taking mechanism and auxiliary mechanism in this embodiment;

[0044] Figure 3 Schematic diagram of the coordination structure between the driven sprocket and the conveyor chain in this embodiment;

[0045] Figure 4 Schematic diagram of the structure of the base assembly and the guide mechanism in this embodiment;

[0046] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0047] Figure 6 Schematic diagram of the structure of the control mechanism in this embodiment;

[0048] Figure 7 Schematic diagram of the structure of the second guide seat in this embodiment;

[0049] Figure 8 It is a structural diagram of the product fixture in this embodiment;

[0050] Figure 9 Schematic diagram of the structure of the auxiliary mechanism and the traction mechanism in this embodiment;

[0051] Figure 10 It is a structural diagram of the third guide seat in this embodiment.

[0052] Explanation of reference numerals: 1, driven sprocket; 11, sprocket groove; 12, first station node; 13, second station node; 2, base assembly; 21, base body; 22, support base; 23, column plate; 3, material removal mechanism; 31, slide block; 32, pneumatic clamp; 33, clamp seat; 34, elastic pad;

[0053] 4. Guide mechanism; 41. First guide seat; 42. Guide groove; 421. High section; 422. Low section; 43. Guide wheel; 44. Bearing mechanism; 441. Bearing base; 442. Rolling bearing; 5. Control mechanism; 51. First plate frame; 511. Linkage rod; 52. Air reservoir; 521. Upper cylinder; 522. Lower cylinder; 53. Valve assembly; 531. Valve seat; 532. Valve connector; 533. Rotor; 54. Second guide seat; 541. Extension portion;

[0054] 6. Auxiliary mechanism; 61. Second plate frame; 62. Clamping assembly; 621. Clamping seat; 622. Deflection clamping arm; 6221. Limiting groove; 6222. Oblique guide portion; 7. Traction mechanism; 71. Third guide seat; 72. Cam groove; 721. Inner edge section; 722. Outer edge section; 73. Traction wheel; 8. Adjustment mechanism; 81. Screw elevator; 82. Lifting platform; 9. Conveyor chain; 91. Product fixture; 92. Sealing portion. DETAILED DESCRIPTION

[0055] The following is combined with Figures 1-10 This application is described in further detail.

[0056] The embodiment of the present application discloses an automatic unloading device that can be used in conjunction with the conveyor chain 9 of the production line, so that the automatic unloading device is driven by the power of the conveyor chain 9 to realize automatic unloading operations.

[0057] Reference Figure 1 、 Figure 2 , an automatic unloading device, including a control mechanism 5, a guide mechanism 4, a material taking mechanism 3, a base assembly 2, an auxiliary mechanism 6, a traction mechanism 7 and a driven sprocket 1 arranged in sequence from top to bottom; wherein, referring to Figure 3 The driven sprocket 1 is rotatably arranged outside the conveyor chain 9. The outer peripheral surface of the driven sprocket 1 has a plurality of sprocket tooth grooves 11 arranged at equal intervals, and the conveyor chain 9 has a plurality of chain links, each of which can engage with the sprocket tooth grooves 11, thereby realizing the coordinated transmission between the driven sprocket 1 and the conveyor chain 9. It should be noted here that each chain link of the conveyor chain 9 is installed with a product jig 91. The product jig 91 is used for inserting and positioning the bottles for production, so that the conveyor chain 9 can drive each bottle forward when it is in operation.

[0058] Reference Figure 3 For ease of explanation, in this application, the position where the sprocket groove 11 engages with the chain links of the conveyor chain 9 when the driven sprocket 1 rotates is defined as the first station node 12. When the sprocket groove 11 rotates to the first station node 12, the central axis of the product fixture 91 can coincide with the center point of the sprocket groove 11. In addition, the automatic unloading device has an unloading area, which is defined as the second station node 13 in this application.

[0059] Reference Figure 4 The base assembly 2 includes a base body 21 and support seats 22. The base body 21 and the driven sprocket 1 are circumferentially linked, meaning that the rotation of the driven sprocket 1 drives the base body 21 to rotate together. There are multiple support seats 22. In this embodiment, the specific number of support seats 22 is equal to the number of sprocket slots 11. Each support seat 22 is fixed to the top surface of the base body 21, and all support seats 22 are equidistantly arranged around the central axis of the base body 21 on the outer edge of the base assembly 2. In addition, each support seat 22 is fixed with a column plate 23, which is used to mount the material removal mechanism 3.

[0060] There are multiple groups of material-picking mechanisms 3, and the specific number is equal to the number of chain tooth slots 11; each material-picking mechanism 3 includes a slide block 31 and a pneumatic clamp 32, wherein a slider is fixed to the back of the slide block 31, and a slide rail is fixed to the column plate 23. The slide block 31 can be slidably installed on the column plate 23 through the cooperation of the slide rail and the slider, and the sliding direction of the slide block 31 is the same as the vertical direction.

[0061] Reference Figure 5 The pneumatic clamp 32 is fixed to the bottom of the slide block 31. The two movable ends of the pneumatic clamp 32 are respectively hinged with a clamp seat 33. The adjacent sides of the two clamp seats 33 are respectively bonded with elastic pads 34. The elastic pads 34 can be made of elastic materials such as silicone or rubber; at the same time, refer to Figure 2 Each pneumatic clamp 32 is connected to the control mechanism 5, and the opening and closing actions of the pneumatic clamp 32 can be controlled by the control mechanism 5 to facilitate clamping the bottle body and separating it from the product fixture 91.

[0062] It should be noted that, after each sliding column block 31 is correspondingly mounted on each column plate 23 , each sliding column block 31 can be directly arranged opposite to each chain tooth groove 11 and be located at the same vertical height line.

[0063] Back to Figure 4 The guide mechanism 4 includes a first guide seat 41 and a guide wheel 43, wherein the first guide seat 41 is fixedly arranged and can be fixedly connected to the external bracket in practice, and the first guide seat 41 is located above the column plate 23; a guide groove 42 is opened on the outer peripheral surface of the first guide seat 41, and the guide groove 42 includes a high-position section 421 and a low-position section 422, and the height of the high-position section 421 will be higher than the height of the low-position section 422; the high-position section 421 and the low-position section 422 are connected end to end, and the connection between the two has a smooth transition.

[0064] There are multiple guide wheels 43, the specific number of which is equal to the number of sliding blocks 31. Each guide wheel 43 is rotatably connected to each sliding block 31. Each guide wheel 43 is normally located in the guide groove 42. When the base body 21 rotates with the driven sprocket 1, the guide wheel 43 can circulate between the high section 421 and the low section 422.

[0065] It should be noted here that the low-position section 422 in this embodiment is located at the front and rear ends of the first work station node 12, that is, when the guide wheel 43 rotates to near the first work station node 12, the guide wheel 43 will enter the low-position section 422 from the high-position section 421. At this time, the slide block 31 can automatically slide downward to facilitate the pneumatic clamp 32 to smoothly enter the outside of the bottle body to clamp the bottle body; then, the guide wheel 43 gradually returns to the high-position section 421 during the movement from the first work station node 12 to the second work station node 13, which can realize the automatic rise of the pneumatic clamp 32, so that the bottle body can be smoothly separated from the product fixture 91.

[0066] In addition, refer to Figure 6A bearing mechanism 44 is also provided between the first guide seat 41 and each column plate member 23. The bearing mechanism 44 includes a bearing base 441 and a plurality of rolling bearings 442. The bearing base 441 is fixed to the top of each column plate member 23 and is circumferentially linked with the driven sprocket 1, so that it can rotate along with the driven sprocket 1. The rolling bearings 442 are fixed to the top surface of the bearing base 441, and there are multiple groups of rolling bearings 442, all of which are equidistantly arranged around the central axis of the bearing base 441. Some rolling bearings 442 can abut against the bottom of the first guide seat 41, while others can abut against the inner side surface of the first guide seat 41, thereby providing auxiliary support for the first guide seat 41 and, to a certain extent, facilitating the rotation of the base assembly 2 and each group of the retrieving mechanism 3.

[0067] The control mechanism 5 includes a first plate frame 51, an air reservoir 52, a valve assembly 53 and a second guide seat 54. The first plate frame 51 is located above the first guide seat 41 and is also circumferentially linked with the driven sprocket 1, and can rotate with the driven sprocket 1. Figure 2 The air storage cylinder 52 includes an upper cylinder 521 and a lower cylinder 522, wherein the lower cylinder 522 is fixedly mounted on the top of the first plate frame 51, and the upper cylinder 521 is rotatably connected to the lower cylinder 522, and a rotational seal is maintained between the two; the top end of the upper cylinder 521 is used to be connected to an external air supply pipeline. When the driven sprocket 1 rotates circumferentially driven by the conveyor chain 9, the lower cylinder 522 can rotate accordingly, while the upper cylinder 521 can maintain a fixed connection with the air supply pipeline.

[0068] Reference Figure 6 Multiple sets of valve assemblies 53 are provided, the specific number of which is equal to the number of sliding blocks 31. Each valve assembly 53 is fixed to the first plate frame 51, and all valve assemblies 53 are arranged equidistantly around the central axis of the first plate frame 51 on the outer edge of the first plate frame 51. It should be noted that in this embodiment, after all valve assemblies 53 are installed on the first plate frame 51, each set of valve assemblies 53 can be arranged directly opposite each sliding block 31 and at the same vertical height.

[0069] Specifically, the valve assembly 53 comprises a valve seat 531 and a valve connector 532. The valve seat 531 is fixed to the top surface of the first plate frame 51. The air inlet port of the valve seat 531 is connected to the air reservoir 52 via an air pipe, allowing air pressure from the external air supply line to enter the valve seat 531. The valve connector 532 is movably connected to the valve seat 531, and the air storage port of the valve connector 532 is also connected to the corresponding pneumatic clamp 32 at a vertical height via an air pipe. Furthermore, a reset element is built into the valve seat 531. This reset element can continuously generate an elastic force acting on the valve connector 532, forcing it to normally extend, at which point the valve assembly 53 is in the closed state.

[0070] The second guide seat 54 is fixedly provided and can also be fixedly connected to the external bracket in practice; Figure 7 The second guide seat 54 is annular in shape, and an extension portion 541 is partially provided on the inner circumference of the second guide seat 54. The extension portion 541 and the second guide seat 54 are integrally formed. It can be seen that the minimum distance between the extension portion 541 and the center of the second guide seat 54 is less than the inner diameter of the second guide seat 54. A runner 533 is rotatably mounted on the end of the valve connector 532 away from the valve seat 531. When the reset member forces the valve connector 532 to move outward to the extreme position, the runner 533 can fit the inner circumference of the second guide seat 54. When the material picking mechanism 3 moves to between the first station node 12 and the second station node 13 along with the driven sprocket 1, the runner 533 can abut against the extension portion 541 and move inward. At this time, the valve assembly 53 can be in an open state, and air pressure enters the pneumatic clamp 32 through the valve assembly 53, enabling the pneumatic clamp 32 to operate and smoothly clamp the bottle.

[0071] In addition, back to Figure 6 A bearing mechanism 44 is also provided between the second guide seat 54 and the first plate frame 51. The specific structure of the bearing mechanism 44 is the same as that described above and will not be elaborated here. It can also play an auxiliary supporting role for the second guide seat 54, and to a certain extent, it is also beneficial to the rotation of the first plate frame 51 and each group of valve assemblies 53.

[0072] Reference Figure 4 The auxiliary mechanism 6 is arranged between the driven sprocket 1 and the base assembly 2, and can protect the product fixture 91 when the pneumatic clamp 32 grabs the bottle body and rises, reducing the possibility that the product fixture 91 is lifted up along with the bottle body. Figure 8 It should be noted here that for the production and processing of some bottles, the bottle mouth needs to be sealed, so a sealing portion 92 needs to be provided on the product fixture 91; in this embodiment, the shape of the sealing portion 92 is designed to have multiple step surfaces.

[0073] Back to Figure 4 The auxiliary mechanism 6 includes a second plate frame 61 and clamping assemblies 62. The second plate frame 61 is also circumferentially linked with the driven sprocket 1 and can rotate with the driven sprocket 1. The number of clamping assemblies 62 is equal to the number of sprocket slots 11. Each clamping assembly 62 is slidably mounted on the second plate frame 61, and all clamping assemblies 62 are equidistantly arranged on the outer edge of the second plate frame 61 around the central axis of the second plate frame 61. It should be noted that when all clamping assemblies 62 are mounted on the second plate frame 61, each group of clamping assemblies 62 can be arranged directly opposite each sprocket slot 11 and at the same vertical height.

[0074] Specific reference Figure 5 The clamping assembly 62 includes a clamping seat 621, a deflection clamping arm 622, and an elastic member (not shown). The clamping seat 621 is slidably mounted on the bottom of the second plate frame 61, and the sliding direction of each clamping seat 621 is the same as the radial direction of the second plate frame 61. There are two deflection clamping arms 622, each hinged to the side of the clamping seat 621 away from the central axis of the second plate frame 61. The adjacent side surfaces of the two deflection clamping arms 622 are respectively provided with a limiting groove 6221. In this embodiment, the limiting groove 6221 is arranged in a semicircular shape, and the two limiting grooves 6221 can be enclosed to form a full circle. In addition, each deflection clamping arm 622 is provided with an inclined guide portion 6222 on the side away from the clamping seat 621.

[0075] The elastic member is a spring, and both ends of the elastic member are respectively pressed against the two deflection clamping arms 622, and the elastic member and the limit groove 6221 are respectively located on both sides of the rotation connection of the deflection clamping arm 622, so that in the initial state, the elastic member can force the two deflection clamping arms 622 to rotate towards each other and approach each other.

[0076] Reference Figure 9 The traction mechanism 7 is arranged between the driven sprocket 1 and the first plate frame 51, and is used to cooperate with each group of clamping components 62 to force the clamping components 62 to automatically move; specifically, the traction mechanism 7 includes a third guide seat 71 and a traction wheel 73. The third guide seat 71 is fixedly arranged and can also be fixedly connected to an external bracket in practice. Figure 10 A cam groove 72 is provided on the top surface of the third guide seat 71. The cam groove 72 includes an inner edge section 721 and an outer edge section 722. The inner edge section 721 and the outer edge section 722 are connected end to end, with a smooth transition between the two, and the distance from the inner edge section 721 to the center of the third guide seat 71 is smaller than the distance from the outer edge section 722 to the center of the third guide seat 71.

[0077] There are multiple traction wheels 73, the specific number of which is equal to the number of clamping seats 621. Each traction wheel 73 is connected to the clamping seat 621 and is normally located in the cam groove 72. It can be understood that when the driven sprocket 1 rotates with the second plate frame 61 in the circumferential direction, each traction wheel 73 can circulate within the inner edge section 721 and the outer edge section 722.

[0078] When the sprocket groove 11 of the driven sprocket 1 approaches the first workstation node 12 driven by the conveyor chain 9, the traction wheel 73 can gradually enter the outer edge section 722. At this time, the clamping assembly 62 automatically moves outward, and the inclined guide portion 6222 of the swing clamp arm 622 can abut the blocking portion 92 of the product fixture 91 and gradually open. Finally, the limiting grooves 6221 of the two swing clamp arms 622 can jointly protect the blocking portion 92, and the center of the area enclosed by the two limiting grooves 6221 can coincide with the center of the sprocket groove 11. Based on this, the two swing clamp arms 622 are stuck on the step surface of the blocking portion 92, which can reduce the occurrence of the product fixture 91 being lifted up along with the bottle body. Then, the sprocket groove 11 gradually rotates to the second workstation node 13 following the conveyor chain 9. At this time, the traction wheel 73 returns to the inner edge section 721, which can force the swing clamp arm 622 to separate from the smooth product fixture 91.

[0079] Reference Figure 2 and Figure 9 The automatic unloading device also includes an adjustment mechanism 8 for adjusting the height of the auxiliary mechanism 6. Specifically, the adjustment mechanism 8 includes a screw hoist 81 and a lifting platform 82. The screw hoist 81 is fixedly mounted on the top of the first plate frame 51. In this embodiment, a hand-cranked screw hoist 81 is used, which can be manually operated to control the operation of the screw hoist 81 when needed. The guide screw of the screw hoist 81 is arranged vertically, and the end of the guide screw extends to the driven sprocket 1 and is connected to the driven sprocket 1, thereby achieving circumferential linkage between the driven sprocket 1 and the first plate frame 51.

[0080] Reference Figure 4 and Figure 6 It should be noted that the first plate frame 51 is also fixed with multiple linkage rods 511. In this embodiment, there are four linkage rods 511, which are equidistantly arranged around the central axis of the first plate frame 51. Of course, in other feasible embodiments, the number of linkage rods 511 can also be three, five, or six, and is not limited to the number shown in this embodiment. Each linkage rod 511 is sequentially matched and penetrated through the bearing base 441, the base body 21, and the second plate frame 61, and the bottom end of the linkage rod 511 is fixedly connected to the second plate frame 61. Based on this, the bearing base 441, the base body 21, and the second plate frame 61 can be respectively linked circumferentially with the driven sprocket 1.

[0081] Back to Figure 9The lifting platform 82 is movably connected to the guide screw of the screw elevator 81, and the lifting platform 82 is located below the second plate frame 61. It should be noted that the second plate frame 61 can be supported by the lifting platform 82 under the action of its own gravity. When the screw elevator 81 is manually operated, the second plate frame 61 can move up and down with the lifting platform 82 to adjust the height. Based on this, by adjusting the auxiliary mechanism 6 to different heights and replacing the product fixtures 91 with different heights, it is possible to adapt to the automated production and processing of multiple types and sizes of bottles, thereby improving equipment compatibility.

[0082] The implementation principle of an automatic unloading device in the embodiment of the present application is as follows:

[0083] When the conveyor chain 9 of the production line is operating and drives the product fixture 91 to continuously convey forward, the driven sprocket 1 rotates under the drive of the conveyor chain 9, and each sprocket groove 11 gradually approaches the first workstation node 12. At this time, the guide wheel 43 gradually enters the low-position section 422, so that the material picking mechanism 3 opposite to the sprocket groove 11 automatically moves down to the outside of the bottle body.

[0084] When the sprocket groove 11 rotates to the first workstation node 12, the valve connector 532 of the valve assembly 53 opposite to the sprocket groove 11 can press against the extension portion 541 and move inward. At this time, the valve assembly 53 is in an open state, and the pneumatic clamp 32 is actuated and can clamp the bottle body. At the same time, the traction wheel 73 of the clamping assembly 62 opposite to the sprocket groove 11 can enter the outer edge section 722, thereby causing the clamping assembly 62 to automatically move outward and protect the product fixture 91, reducing the occurrence of the product fixture 91 being lifted up.

[0085] Then, the sprocket groove 11 rotates from the first workstation node 12 to the second workstation node 13. At this time, the guide wheel 43 gradually returns to the high-position section 421, so that the pneumatic clamp 32 automatically rises with the bottle body; at the same time, the traction wheel 73 also gradually returns to the inner edge section 721, so that the clamping assembly 62 automatically detaches from the product fixture 91.

[0086] Finally, when the sprocket slot 11 moves to the second station node 13, the valve connector 532 leaves the extension 541 and returns to the closed state. The pneumatic gripper 32 then automatically releases the bottle, allowing it to fall into the unloading area of ​​the second station node 13, thereby achieving automatic bottle unloading. This allows the automatic unloading of bottles to be achieved without the need for a drive component, reducing equipment energy consumption and saving both manpower and energy.

[0087] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An automatic unloading device, characterized in that: include: A driven sprocket (1) is used to cooperate with a conveyor chain belt (9) of a production line to realize rotation. The outer peripheral side of the driven sprocket (1) has a plurality of chain tooth grooves (11). Each link of the conveyor chain belt (9) is installed with a product fixture (91). At the first workstation node (12), the chain tooth groove (11) matches and engages with the driven sprocket (1). At this time, the center axis of the product fixture (91) coincides with the center of the chain tooth groove (11); A base assembly (2), wherein the base assembly (2) and the driven sprocket (1) are circumferentially linked; A material taking mechanism (3), wherein the number of the material taking mechanisms (3) matches the number of the chain tooth slots (11), each of the material taking mechanisms (3) is slidably mounted on the base assembly (2), and each group of the material taking mechanisms (3) is respectively arranged opposite to each chain tooth slot (11); The material-retrieving mechanism (3) comprises a slide block (31) and a pneumatic clamp (32) fixedly connected to the bottom of the slide block (31), wherein the slide block (31) is vertically slidably mounted on the base assembly (2); each of the pneumatic clamps (32) is connected to a control mechanism (5) for controlling the opening and closing of the pneumatic clamp (32); A guiding mechanism (4), wherein the material taking mechanism (3) and the guiding mechanism (4) cooperate with each other to realize automatic lifting when the material taking mechanism (3) rotates to a position close to the first workstation node (12); The guide mechanism (4) comprises a fixed first guide seat (41) and a guide wheel (43) mounted on the side of the slide block (31); the outer peripheral surface of the first guide seat (41) is provided with a guide groove (42); the guide groove (42) comprises a high-position section (421) and a low-position section (422) connected end to end, with a smooth transition between the two; the guide wheel (43) is normally located in the guide groove (42); when the slide block (31) is adjacent to the first workstation node (12), the guide wheel (43) is located in the low-position section (422); A control mechanism (5), the control mechanism (5) being connected to each group of the material taking mechanism (3) and being used to control the gripping action of the material taking mechanism (3) at the first workstation node (12) and the second workstation node (13) respectively; The control mechanism (5) comprises a first plate frame (51), an air storage cylinder (52), a valve assembly (53) and a second guide seat (54), wherein the first plate frame (51) and the driven sprocket (1) are circumferentially linked; the air storage cylinder (52) is fixed to the first plate frame (51) and is used to connect to an external air supply pipeline; The valve assembly (53) is fixedly mounted on the first plate frame (51), the number of the valve assembly (53) matches that of the slide block (31), the air inlet port of each valve assembly (53) is connected to the air reservoir (52) through an air pipe, and the air outlet port of each valve assembly (53) is connected to each pneumatic clamp (32) respectively. The second guide seat (54) is fixedly arranged and located on the outer peripheral side of all valve assemblies (53); an extension portion (541) is partially provided on the inner peripheral surface of the second guide seat (54); when the material taking mechanism (3) is located between the first station node (12) and the second station node (13), the valve assembly (53) abuts against the extension portion (541) and is in an open state; The valve assembly (53) includes a valve seat (531) fixed to the first plate frame (51) and a valve connector (532) movably connected to the valve seat (531), and a reset member is provided between the valve connector (532) and the valve seat (531), and the reset member is used to force the valve connector (532) to be in a normally extended state; the pneumatic clamp (32) is connected to the valve connector (532) through an air pipe, and when the material picking mechanism (3) is between the first workstation node (12) and the second workstation node (13), the valve connector (532) abuts against the extension portion (541) and moves inward.

2. The automatic unloading device according to claim 1, characterized in that: The base assembly (2) includes a base body (21) and a plurality of support seats (22) mounted on the base body (21), and all the support seats (22) are arranged at equal distances along the outer edge of the base body (21); each of the support seats (22) is fixed with a column plate (23), and the sliding column block (31) is vertically slidably mounted on the column plate (23).

3. The automatic unloading device according to claim 1, characterized in that: The two movable ends of the pneumatic clamping jaw (32) are respectively hinged with clamping seats (33), and the adjacent side surfaces of the two clamping seats (33) are respectively provided with elastic pads (34).

4. The automatic unloading device according to claim 1, characterized in that: Also includes: An auxiliary mechanism (6), the auxiliary mechanism (6) comprising a second plate frame (61) and a plurality of clamping assemblies (62) slidably arranged on the second plate frame (61), the second plate frame (61) and the driven sprocket (1) being circumferentially linked; the number of the clamping assemblies (62) and the chain tooth grooves (11) is matched, and each of the clamping assemblies (62) is respectively arranged opposite to each of the chain tooth grooves (11); A traction mechanism (7) is coupled with each group of clamping assemblies (62) to enable the clamping assemblies (62) to automatically move outward when approaching the first workstation node (12).

5. The automatic unloading device according to claim 4, characterized in that: The clamping assembly (62) comprises a clamping seat (621) and two yaw clamping arms (622) rotatably mounted on the clamping seat (621); an elastic member is provided between the two yaw clamping arms (622); the elastic member is used to force the two yaw clamping arms (622) to rotate towards each other; adjacent side surfaces of the two yaw clamping arms (622) are respectively provided with limiting grooves (6221); when the clamping assembly (62) is located at the first workstation node (12), the center of the area enclosed by the two limiting grooves (6221) coincides with the center of the chain tooth groove (11).

6. The automatic unloading device according to claim 5, characterized in that: The traction mechanism (7) includes a fixed third guide seat (71) and a plurality of traction wheels (73) correspondingly connected to each clamping assembly (62); the third guide seat (71) is provided with a cam groove (72), and the traction wheel (73) is normally located in the cam groove (72); The cam groove (72) includes an inner edge section (721) and an outer edge section (722) connected end to end, the distance between the inner edge section (721) and the center of the third guide seat (71) is smaller than the distance between the outer edge section (722) and the center of the third guide seat (71), and there is a smooth transition between the two; when the clamping assembly (62) is adjacent to the first workstation node (12), the traction wheel (73) is located in the outer edge section (722).

7. The automatic unloading device according to claim 4, characterized in that: The device body also includes an adjustment mechanism (8) for adjusting the height of the auxiliary mechanism (6), the adjustment mechanism (8) including a fixedly arranged screw hoist (81) and a lifting platform (82) movably connected to the screw rod of the screw hoist (81), and the auxiliary mechanism (6) is partially pressed against the lifting platform (82) under normal conditions due to its own gravity.

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