Automatic discharging device

Abstract

The invention provides an automatic discharging device which comprises a driven chain wheel used for being matched with a conveying chain belt of a production line to achieve rotation, and a plurality of chain tooth grooves are formed in the peripheral side of the driven chain wheel. The base assembly is linked with the driven chain wheel in the circumferential direction; the number of the material taking mechanisms is matched with that of the zipper tooth grooves, each material taking mechanism is installed on the base assembly in a sliding mode, and each set of material taking mechanism is arranged right opposite to the corresponding zipper tooth groove; the material taking mechanism is matched with the guiding mechanism, so that automatic lifting of the material taking mechanism when the material taking mechanism rotates to be close to the first station node is achieved; and the control mechanism is simultaneously connected with each group of material taking mechanisms and is used for respectively controlling the clamping actions of the material taking mechanisms at the first station node and the second station node. On the basis, automatic discharging operation of the bottle bodies can be achieved under the condition that a driving component is not arranged, energy consumption of equipment can be reduced, and the energy-saving effect is achieved while manpower is saved.

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. When the bottles are automatically produced, they need to go through a series of processing techniques such as bottle body molding, surface decoration and printing, assembly and post-processing, finished product inspection and quality control, and material collection. Among them, when the bottle body is processed in the process of surface decoration or by spraying or coating, the bottle body is often inverted so that the bottle mouth is inserted into the corresponding product fixture. At this time, the conveying mechanism drives each product fixture to move in order, so that each bottle body can enter the spraying station for spraying, or enter the electroplating station for coating.

[0003] After the bottle body is produced and tested, it is necessary to remove the bottle body from the product jig in order to collect the bottle body. On the existing automatic production line, the automatic unloading device usually includes a conveying mechanism for conveying products, a positioning mechanism for fixing the product jig, and a clamping mechanism for clamping the bottle body. When the product jig is successfully positioned on the positioning mechanism, the clamping mechanism can move to the outside of the bottle body, clamp the bottle body and lift it upward, so that the bottle body can be smoothly separated from the product jig; however, in this process, whether it is the conveying mechanism, the positioning mechanism or the clamping mechanism, it needs to be driven by a driving component such as a motor or a cylinder, and the equipment consumes a lot of energy and needs to be improved. Summary of the invention

[0004] Based on this, the present application provides an automatic unloading device, which can realize the automatic unloading operation of the bottle body without setting a driving component, thereby saving manpower and energy.

[0005] The automatic unloading device provided in this application adopts the following technical solution: An automatic unloading device, comprising: The driven sprocket is used to cooperate with the conveyor chain of the production line to realize rotation. The outer peripheral side of the driven sprocket has a plurality of sprocket grooves. Each link of the conveyor chain is installed with a product fixture. At the first station node, the sprocket groove matches and bites with the driven sprocket. At this time, the central axis of the product fixture coincides with the center of the sprocket groove; A base assembly, wherein the base assembly and the driven sprocket are circumferentially linked; The number of the material taking mechanism and the chain tooth grooves is matched, each material taking mechanism is slidably mounted on the base assembly, and each group of material taking mechanisms is respectively arranged opposite to each chain tooth groove; The guiding mechanism and the material taking mechanism cooperate with each other to realize automatic lifting when the material taking mechanism rotates to a node near the first station; 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.

[0006] 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 to add a separate driving component.

[0007] The present application defines the meshing position of the conveyor chain belt 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 belt, the material picking mechanism can gradually move down and accurately locate on the outside of the bottle body under the guidance of the guide mechanism because the material picking mechanism is arranged opposite to the chain tooth groove, and when it is at the first station node, the material picking mechanism can be forced to move and clamp the bottle body through the control mechanism. Then, as the material picking mechanism continues to rotate to the second node station, the material picking mechanism can gradually slide upward and take the bottle body away from the product jig, thereby realizing the automatic material 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 the effect of energy saving.

[0008] Optionally, the material taking 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; The guiding mechanism includes a fixed first guiding seat and a guiding wheel installed on the side of the sliding column block. The outer peripheral surface of the first guiding seat is provided with a guiding groove. The guiding groove includes a high-position section and a low-position section connected end to end, and a smooth transition between the two. The guiding wheel is normally located in the guiding groove. When the sliding column block is close to the first workstation node, the guiding wheel is located in the low-position section.

[0009] By adopting the above 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, and the pneumatic clamp of the material-taking mechanism is at a higher position; when a chain tooth groove of the driven sprocket rotates close to the first station node, the guide wheel gradually moves downward and enters the low section, which enables the slide block and the pneumatic clamp to move downward to the outside of the bottle body, and then the bottle body is smoothly clamped through the control mechanism.

[0010] Optionally, the control mechanism includes a first plate frame, an air storage cylinder, a valve assembly and a second guide seat, wherein the first plate frame and the driven sprocket are circumferentially linked; the air storage cylinder is fixed to the first plate frame and is used to connect to an external air supply pipeline; The valve assembly is fixedly mounted on the first plate frame, the number of the valve assembly matches that of the sliding column block, 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 claw correspondingly; 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 abuts against the extension portion and is in an open state.

[0011] By adopting the above-mentioned technical scheme, 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 transmitted to the pneumatic clamping jaws through each valve assembly to control the clamping action of the pneumatic clamping jaws; 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 circle 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 to between the first node station and the second node station, the valve assembly can partially abut against the extension part and be in an open state, at which time the air pressure in the air cylinder can enter the corresponding pneumatic clamping jaws through the valve assembly, thereby forcing the pneumatic clamping jaws to move and smoothly clamp the bottle body.

[0012] 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 station node and the second station node, the valve connector abuts against the extension portion and moves inward.

[0013] 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 fixedly arranged, 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, so that the pneumatic clamp can smoothly operate and clamp the bottle body.

[0014] Optionally, the base assembly includes a base body and a plurality of support seats installed on the base body, and all the support seats are arranged equidistantly 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.

[0015] By adopting the above-mentioned technical scheme, the setting of the support seat and the column plate can be used as a fixed carrier of the material picking 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 picking mechanisms can be conveniently installed on each column plate, which is convenient for the processing and assembly of the equipment components.

[0016] Optionally, 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.

[0017] By adopting the above technical solution, the pneumatic clamp is pressed against the outer surface of the bottle body by two elastic pads when the pneumatic clamp is in action, 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 clamp, the pneumatic clamp can improve its 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.

[0018] Optionally, the automatic unloading device also includes: 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 that of the sprocket grooves, and each clamping assembly is arranged opposite to each sprocket groove; 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.

[0019] By adopting the above-mentioned technical scheme, for the production operation of some bottles, there may be a situation where the mouth of the bottle body needs to be sealed, so the product fixture needs to have a sealing portion 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 feeding 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 and gradually protect the sealing portion of the product fixture, and then in the process of the feeding mechanism driving the bottle body to gradually move upward, the clamping component can press the product fixture to reduce the situation where the product fixture is lifted up along with the bottle body.

[0020] Optionally, the clamping assembly includes a clamping seat and two yaw clamp arms rotatably mounted on the clamping seat, an elastic member is provided between the two yaw clamp arms, and the elastic member is used to force the two yaw clamp arms to rotate towards each other; adjacent side surfaces of the two yaw clamp 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.

[0021] By adopting the above-mentioned technical scheme, when the product jig and the bottle body are conveyed forward together with the conveyor chain and gradually approach the first station 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 clamp arms can be rotated in opposite directions 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 clamp arms forces the two deflection clamp arms to reset to the initial position, and at the first station node, the center of the area enclosed by the two limit grooves can coincide with the center of the product jig, so that the two deflection clamp arms can smoothly protect the product jig, reducing the possibility of the product jig being lifted up along with the bottle body.

[0022] 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; 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 adjacent to the first workstation node, the traction wheel is located in the outer edge section.

[0023] By adopting the above 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 the node near the first station, the traction wheel can gradually enter the outer edge area, thereby forcing the clamping assembly to gradually move outward and protect the product fixture, so as to reduce the situation where the product fixture is lifted up along with the bottle body.

[0024] Optionally, the device body also includes an adjustment mechanism for adjusting the height of the auxiliary mechanism, the adjustment mechanism includes a fixedly arranged screw hoist and a lifting platform movably connected to the screw hoist screw rod, and the auxiliary mechanism is partially against the lifting platform under normal conditions due to its own gravity.

[0025] By adopting the above-mentioned technical solution, the auxiliary mechanism in the present 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 fixtures 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.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. 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 the effect of energy saving; 2. By setting the valve assembly, when the material taking 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 clamping claw can move and smoothly clamp the bottle body; 3. By setting up a clamping assembly, when the material picking mechanism reaches the first station 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, thereby reducing the situation where the product fixture is lifted up along with the bottle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall structure of the automatic unloading device of this embodiment; Figure 2 It is a structural schematic diagram of the automatic unloading device under a single set of material taking mechanism and auxiliary mechanism in this embodiment; Figure 3 Schematic diagram of the matching structure between the driven sprocket and the conveyor chain in this embodiment; Figure 4is a structural schematic diagram of the base assembly and the guide mechanism in this embodiment; Figure 5 yes Figure 4 The enlarged view of point A in the middle; Figure 6 Schematic diagram of the structure of the control mechanism in this embodiment; Figure 7 is a schematic structural diagram of the second guide seat in this embodiment; Figure 8 It is a structural schematic diagram of the product fixture in this embodiment; Fig. 9 is a schematic diagram of the structure of the auxiliary mechanism and the traction mechanism in this embodiment; Fig.10 Schematic diagram of the structure of the third guide seat in this embodiment.

[0028] Description 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 seat; 23, column plate; 3, material taking mechanism; 31, slide column block; 32, pneumatic clamp; 33, clamp seat; 34, elastic pad; 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 joint; 533. Rotor; 54. Second guide seat; 541. Extension; 6. Auxiliary mechanism; 61. Second plate frame; 62. Clamping assembly; 621. Clamping seat; 622. Swing clamping arm; 6221. Limiting groove; 6222. Oblique guide part; 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 part. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 10 This application is described in further detail.

[0030] The embodiment of the present application discloses an automatic unloading device, which can be used in conjunction with a conveyor chain 9 of a production line, so that the power of the conveyor chain 9 drives the automatic unloading device to realize automatic unloading operations.

[0031] Reference Figure 1 , Figure 2, an automatic unloading device, comprising 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 equidistantly arranged sprocket tooth grooves 11, and the conveyor chain 9 has a plurality of chain links, each of which can be engaged 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 fixture 91, which is used for inserting and positioning the bottles to be produced, so that the conveyor chain 9 can drive each bottle to be transported forward when it is in operation.

[0032] Reference Figure 3 For the sake of convenience, in this application, the position where the sprocket groove 11 engages with the chain link of the conveyor chain belt 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.

[0033] Reference Figure 4 The base assembly 2 includes a base body 21 and a support seat 22. The base body 21 and the driven sprocket 1 are circumferentially linked, that is, the rotation of the driven sprocket 1 can drive 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 grooves 11. Each support seat 22 is fixed to the top surface of the base body 21, and all support seats 22 are equidistantly arranged on the outer edge of the base assembly 2 around the central axis of the base body 21. In addition, each support seat 22 is fixed with a column plate 23, and the column plate 23 is used to install the material taking mechanism 3.

[0034] There are multiple groups of material picking mechanisms 3, and the specific number is equal to the number of chain tooth grooves 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, and 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.

[0035] Reference Figure 5 The pneumatic clamp 32 is fixed to the bottom of the slide block 31, and the two movable ends of the pneumatic clamp 32 are respectively hinged with a clamp seat 33, and the adjacent sides of the two clamp seats 33 are respectively bonded with elastic pads 34, and the elastic pads 34 can be made of elastic materials such as silicone or rubber; at the same time, refer to Figure 2Each pneumatic clamp 32 is connected to the control mechanism 5 , and the control mechanism 5 can control the opening and closing action of the pneumatic clamp 32 , so as to clamp the bottle body and separate it from the product fixture 91 .

[0036] It should be noted that, after each slide block 31 is respectively installed on each column plate member 23 , each slide block 31 can be arranged opposite to each chain tooth groove 11 and be located on the same vertical height line.

[0037] 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 is 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.

[0038] There are multiple guide wheels 43, the specific number of which is equal to the number of sliding blocks 31, and each guide wheel 43 is rotatably connected to each sliding block 31. Each guide wheel 43 is normally located in the guide groove 42, and 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.

[0039] 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 workstation node 12, that is, when the guide wheel 43 rotates to be close to the first workstation node 12, the guide wheel 43 will enter the low-position section 422 from the high-position section 421, and 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 workstation node 12 to the second workstation 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.

[0040] 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 all column plates 23, and the bearing base 441 is circumferentially linked with the driven sprocket 1, and can rotate with the driven sprocket 1. The rolling bearings 442 are fixed to the top surface of the bearing base 441, and the number of rolling bearings 442 is provided in multiple groups, and all rolling bearings 442 are arranged equidistantly around the central axis of the bearing base 441; some rolling bearings 442 can abut against the bottom of the first guide seat 41, and the other part of the rolling bearings 442 can abut against the inner side surface of the first guide seat 41, which can play an auxiliary supporting role for the first guide seat 41, and is also beneficial to the rotation of the base assembly 2 and each group of the material taking mechanism 3 to a certain extent.

[0041] The control mechanism 5 includes 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 is located above the first guide seat 41, and the first plate frame 51 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, and the upper cylinder 521 can maintain a fixed connection with the air supply pipeline.

[0042] Reference Figure 6 , there are multiple groups of valve assemblies 53, and the specific number thereof is equal to the number of sliding column blocks 31; each valve assembly 53 is fixed to the first plate frame 51, and all valve assemblies 53 are arranged around the central axis of the first plate frame 51 and are equidistantly arranged 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 group of valve assemblies 53 can be arranged opposite to each sliding column block 31 and be on the same vertical height line.

[0043] Specifically, the valve assembly 53 includes 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 storage cylinder 52 through an air pipe, so that the air pressure of the external air supply pipeline can enter the valve seat 531; the valve connector 532 is movably plugged into the valve seat 531, and the air storage port of the valve connector 532 is also connected to the pneumatic clamp 32 corresponding to the vertical height through an air pipe. In addition, a reset member is built into the valve seat 531, and the reset member can always generate an elastic force acting on the valve connector 532 and force the valve connector 532 to extend normally. At this time, the valve assembly 53 is in a closed state.

[0044] The second guide seat 54 is fixedly arranged, and in practice can also be fixedly connected to the external bracket; Figure 7 The specific shape of the second guide seat 54 is annular, and the inner circumference of the second guide seat 54 is partially provided with an extension portion 541, and the extension portion 541 is integrally formed with the second guide seat 54; it can be known that the minimum distance between the extension portion 541 and the center of the second guide seat 54 is smaller than the inner diameter of the second guide seat 54. A rotating wheel 533 is rotatably mounted on one 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 limit position, the rotating wheel 533 can fit the inner circumference of the second guide seat 54; and 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 rotating wheel 533 can abut against the extension portion 541 and move inward, at which time the valve assembly 53 can be in an open state, and the air pressure enters the pneumatic clamp 32 through the valve assembly 53, which can make the pneumatic clamp 32 move and smoothly clamp the bottle body.

[0045] 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 described above and will not be elaborated here. It can also play an auxiliary supporting role for the second guide seat 54, and is also beneficial to the rotation of the first plate frame 51 and each group of valve assemblies 53 to a certain extent.

[0046] Reference Figure 4 The auxiliary mechanism 6 is disposed between the driven sprocket 1 and the base assembly 2, and can protect the product fixture 91 when the pneumatic clamp 32 grips the bottle body and rises, thereby 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 mouth of the bottle 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.

[0047] Back to Figure 4 The auxiliary mechanism 6 includes a second plate frame 61 and a clamping assembly 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 chain tooth 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 after all clamping assemblies 62 are installed on the second plate frame 61, each group of clamping assemblies 62 can be respectively arranged opposite to each chain tooth slot 11 and be on the same vertical height line.

[0048] Specific reference Figure 5 The clamping assembly 62 includes a clamping seat 621, a deflection clamping arm 622 and an elastic member (not shown in the figure). The clamping seat 621 is slidably installed at 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, and the two deflection clamping arms 622 are respectively hinged to the side of the clamping seat 621 away from the central axis of the second plate frame 61; the adjacent sides of the two deflection clamping arms 622 are respectively provided with limiting grooves 6221, and the limiting grooves 6221 in this embodiment are arranged in a semicircular shape, and the two limiting grooves 6221 can be enclosed to form a full circle shape. In addition, each deflection clamping arm 622 is provided with an inclined guide portion 6222 on the side away from the clamping seat 621.

[0049] The elastic member is a spring, and both ends of the elastic member are respectively pressed against the two deflection clamp arms 622, and the elastic member and the limit groove 6221 are respectively located on both sides of the rotation connection of the deflection clamp arm 622, so that in the initial state, the elastic member can force the two deflection clamp arms 622 to rotate towards each other and approach each other.

[0050] Reference Fig. 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, and the third guide seat 71 is fixedly arranged and can also be fixedly connected to an external bracket in practice. Fig.10 A cam groove 72 is provided on the top surface of the third guide seat 71, and 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 therebetween, 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.

[0051] There are multiple traction wheels 73, the specific number of which is equal to the number of the clamping seats 621. Each traction wheel 73 is connected to the clamping seat 621, and the traction wheel 73 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 in the inner edge section 721 and the outer edge section 722.

[0052] When the sprocket groove 11 of the driven sprocket 1 is driven by the conveyor chain belt 9 and approaches the first station node 12, the traction wheel 73 can gradually enter the outer edge section 722, at which time the clamping assembly 62 automatically moves outward, and the inclined guide portion 6222 of the deflection clamp arm 622 can abut against the blocking portion 92 of the product fixture 91 and gradually open, and finally the limiting grooves 6221 of the two deflection 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 deflection 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 station node 13 following the conveyor chain belt 9, and the traction wheel 73 returns to the inner edge section 721, which can force the deflection clamp arm 622 to detach from the smooth product fixture 91.

[0053] Reference Figure 2 and Fig. 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 action of the screw hoist 81 when necessary. The guide screw of the screw hoist 81 is vertically arranged, and the end of the guide screw extends to the driven sprocket 1 and is connected to the driven sprocket 1, thereby realizing the circumferential linkage between the driven sprocket 1 and the first plate frame 51.

[0054] Reference Figure 4 and Figure 6 It should be noted that the first plate frame 51 is also fixed with a plurality of linkage rods 511. In this embodiment, the number of linkage rods 511 is four, and the four linkage rods 511 are arranged equidistantly 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 matched and penetrated through the bearing base 441, the base body 21 and the second plate frame 61 in sequence, 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 with the driven sprocket 1 in the circumferential direction.

[0055] Back to Fig. 9, the lifting platform 82 is movably connected to the guiding lead screw of the screw hoist 81, and the lifting platform 82 is located below the second plate frame 61. It should be noted here that the second plate frame 61 can abut against the lifting platform 82 under its own gravity. Thus, when the screw hoist 81 is manually operated, the second plate frame 61 can move up and down with the lifting platform 82, playing a role in height adjustment. Based on this, by adjusting the auxiliary mechanism 6 to different heights and replacing the product fixtures 91 with different heights, the automatic production and processing of multiple groups of bottle bodies with different model sizes can be adapted, improving the equipment compatibility.

[0056] The implementation principle of an automatic blanking device in an embodiment of this application is as follows: When the conveying chain belt 9 of the production line operates and drives the product fixture 91 to continuously convey forward, the driven sprocket 1 rotates under the drive of the conveying chain belt 9, and each chain tooth groove 11 gradually approaches the first station node 12. At this time, the guide wheel 43 gradually enters the low position section 422, causing the blanking mechanism 3 opposite to this chain tooth groove 11 to automatically move down to the outside of the bottle body.

[0057] When the chain tooth groove 11 rotates to the first station node 12, the valve joint 532 of the valve assembly 53 opposite to this chain tooth groove 11 can abut against the extension part 541 and move inward. At this time, the valve assembly 53 is in an open state, and the pneumatic gripper 32 acts and can grip the bottle body; at the same time, the traction wheel 73 of the clamping assembly 62 opposite to this chain tooth 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.

[0058] Then, the chain tooth groove 11 rotates from the first station node 12 to the second station node 13. At this time, the guide wheel 43 gradually returns to the high position section 421, causing the pneumatic gripper 32 to automatically rise with the bottle body; at the same time, the traction wheel 73 also gradually returns to the inner edge section 721, causing the clamping assembly 62 to automatically disengage from the product fixture 91.

[0059] Finally, when the chain tooth groove 11 moves to the second station node 13, the valve joint 532 leaves the extension part 541 and returns to the closed state. At this time, the pneumatic gripper 32 can automatically release the bottle body, causing the bottle body to automatically fall into the blanking area of the second station node 13, thus realizing the automatic blanking operation of the bottle body. Based on this, the automatic blanking operation of the bottle body can be realized without setting a driving member during the whole process, which is beneficial to reducing the equipment energy consumption and has the effect of energy saving while saving manpower.

[0060] The above is the preferred embodiment of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An automatic unloading device, characterized in that: include: A driven sprocket (1), the driven sprocket (1) being used in conjunction with a conveyor chain belt (9) of a production line to achieve rotation, the outer peripheral side of the driven sprocket (1) having a plurality of chain tooth grooves (11), each chain link of the conveyor chain belt (9) being installed with a product fixture (91), and at a first workstation node (12), the chain tooth groove (11) is matched and engaged with the driven sprocket (1), and at this time, the central 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 grooves (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 groove (11); A guiding mechanism (4), wherein the material taking mechanism (3) cooperates with the guiding mechanism (4) to realize automatic lifting when the material taking mechanism (3) rotates to a position close to the first workstation node (12); A control mechanism (5), wherein the control mechanism (5) is simultaneously connected to each group of material taking mechanisms (3) and is used to control the clamping action of the material taking mechanisms (3) at the first workstation node (12) and the second workstation node (13) respectively.

2. The automatic unloading device according to claim 1, characterized in that: The material taking 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 action of the pneumatic clamp (32); The guide mechanism (4) comprises a first guide seat (41) which is fixedly arranged and a guide wheel (43) which is installed on the side of the slide block (31); a guide groove (42) is provided on the outer peripheral surface of the first guide seat (41); the guide groove (42) comprises a high-position section (421) and a low-position section (422) which are connected end to end, and a smooth transition is formed between the two sections; the guide wheel (43) is normally located in the guide groove (42); when the slide block (31) is close to the first workstation node (12), the guide wheel (43) is located in the low-position section (422).

3. The automatic unloading device according to claim 2, characterized in that: 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 be connected 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 sliding column block (31), the air inlet port of each valve assembly (53) is connected to the air storage cylinder (52) through an air pipe, and the air outlet port of each valve assembly (53) is respectively connected to each pneumatic clamp (32); 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 between the first workstation node (12) and the second workstation node (13), the valve assembly (53) abuts against the extension portion (541) and is in an open state.

4. The automatic unloading device according to claim 3 is characterized in that: The valve assembly (53) comprises a valve seat (531) fixed to the first plate frame (51) and a valve connector (532) movably plugged into 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.

5. The automatic unloading device according to claim 2, characterized in that: The base assembly (2) comprises a base body (21) and a plurality of support seats (22) mounted on the base body (21), wherein all the support seats (22) are arranged equidistantly 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).

6. The automatic unloading device according to claim 2, characterized in that: The two movable ends of the pneumatic clamping jaw (32) are respectively hinged with clamp seats (33), and the adjacent side surfaces of the two clamp seats (33) are respectively provided with elastic pads (34).

7. 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) are matched, and each of the clamping assemblies (62) is arranged opposite to each of the chain tooth grooves (11); A traction mechanism (7), wherein the traction mechanism (7) cooperates with each group of clamping assemblies (62) to realize automatic outward movement of the clamping assemblies (62) when approaching the first workstation node (12).

8. The automatic unloading device according to claim 7, 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), and 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).

9. The automatic unloading device according to claim 8, characterized in that: The traction mechanism (7) comprises a fixedly arranged 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) comprises 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).

10. The automatic unloading device according to claim 7, 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) includes a fixedly arranged screw hoist (81) and a lifting platform (82) movably connected to the screw rod of the screw hoist (81); the auxiliary mechanism (6) is partially pressed against the lifting platform (82) under normal conditions due to its own gravity.

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