Automatic assembling device for pen plastic packaging shell

Abstract

An automatic assembling device for a pen plastic packaging shell comprises an equipment base, a plastic shell feeding device, a paperboard feeding device, a pressing device and a controller, and the plastic shell feeding device comprises a first fixing frame, a limiting plate, a first sliding base, a plurality of stamping blocks, a plurality of conveying chain plates, a first hydraulic air cylinder and a first driving motor; a plurality of first limiting grooves are formed in the limiting plate, and a plurality of second limiting grooves are formed in the conveying chain plate. The paperboard feeding device comprises a second fixing frame, a plurality of first clamping plates, a plurality of second clamping plates, a second hydraulic air cylinder, a third hydraulic air cylinder, a rotating shaft, a fixed base, a second sliding base, a plurality of vacuum suction cups, a connecting pipe, a vacuum pump, a first rotating motor and a fourth hydraulic air cylinder. The pressing device comprises a third fixing frame, a third sliding base, a pressing plate, a heating element and a fifth hydraulic air cylinder.

Description

Technical Field

[0001] This utility model relates to the field of pen processing equipment technology, and in particular to an automatic assembly device for pen plastic packaging shells. Background Technology

[0002] Pens are commonly used writing tools. When selling watercolor pens, users often need to buy different colors together. Therefore, they are usually packaged in plastic shells, and then cardboard is fixed to the opening of the plastic shell to complete the packaging. In existing technology, the plastic shell to be processed is usually placed manually on a fixed station, and then a cardboard of the same shape and size is placed at the opening of the plastic shell. Then, a pressure plate is pressed down, and a heating element is placed at the fixed position of the plastic shell and the cardboard to soften the plastic shell. Finally, under pressure, the plastic shell and the cardboard are bonded together. However, with the continuous increase in production demand, this processing method can no longer meet the production needs. Therefore, a new type of assembly equipment is needed to improve production efficiency and reduce labor costs. Summary of the Invention

[0003] To address the aforementioned problems, this utility model provides an automatic assembly device for pen plastic packaging shells that can improve production efficiency, reduce labor costs, and ensure assembly accuracy. The technical solution of this utility model is as follows: An automatic assembly device for pen plastic packaging shells includes a machine base, a plastic shell feeding device connected to the machine base, a cardboard feeding device connected to the machine base, a pressing device connected to the machine base, and a controller. The plastic shell feeding device includes a first fixed frame connected to the machine base, a limiting plate fixedly connected to the first fixed frame, a first sliding base slidably connected to the first fixed frame, several stamping blocks fixedly connected to the first sliding base, several transmission chain plates connected to the first fixed frame, a first hydraulic cylinder for driving the first sliding base to move vertically, and a controller for driving... The first drive motor for the conveyor chain plate movement; the limiting plate is provided with a plurality of first limiting grooves; the conveyor chain plate is provided with a plurality of second limiting grooves; the stamping block is adapted to the shape and size of the first limiting grooves and the second limiting grooves respectively; when the conveyor chain plate moves a certain distance, the second limiting grooves on the conveyor chain plate correspond to the positions of the first limiting grooves and the stamping block respectively; the cardboard feeding device includes a second fixed frame connected to the equipment base, a plurality of first clamping plates slidably connected to the second fixed frame, a plurality of second clamping plates slidably connected to the second fixed frame, and a second [unclear - possibly a device] for driving the first clamping plates to move horizontally. The system comprises a hydraulic cylinder, a third hydraulic cylinder for driving the second clamping plate to move horizontally, a rotating shaft movably connected to the second fixed frame, a fixed base fixedly connected to the rotating shaft, a second sliding base slidably connected to the fixed base, several vacuum suction cups fixedly connected to the second sliding base, a connecting pipe connected to the vacuum suction cups, a vacuum pump connected to the connecting pipe, a first rotary motor for driving the rotating shaft to rotate, and a fourth hydraulic cylinder for driving the second sliding base to move vertically. A first clamping plate and a corresponding second clamping plate constitute a clamping assembly. The position of each clamping assembly is vertically aligned with the position of the first limiting groove. Correspondingly, the first clamping plate and the second clamping plate move in opposite directions. The pressing device includes a third fixed frame fixedly connected to the equipment base, a third sliding base slidably connected to the third fixed frame, a pressure plate fixedly connected to the third sliding base, a heating element connected to the pressure plate, and a fifth hydraulic cylinder for driving the third sliding base to slide vertically. The transmission chain plate can pass directly below the pressure plate and the vacuum suction cup. The controller is electrically connected to the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the fourth hydraulic cylinder, the fifth hydraulic cylinder, the vacuum pump, the first rotary motor, the first drive motor, and the heating element.

[0004] Using the above technical solution, firstly, the cardboard to be processed is stacked into several piles. Then, each pile of cardboard is placed in its corresponding clamping assembly. The controller controls the second and third hydraulic cylinders to drive the first and second clamping plates to move towards each other, clamping the cardboard. Next, the processed and heat-pressed plastic sheet with a plastic shell is fed directly below the stamping block. Then, the controller controls the first hydraulic cylinder to drive the first sliding base vertically downwards. Since the second limiting groove on the conveyor chain corresponds to the first limiting groove and the stamping block as the conveyor chain moves a certain distance, the stamping block will press the plastic shell and plastic sheet together at the break point, causing the plastic shell to separate from the plastic sheet. The plastic shell falls into the first limiting groove. Then, the controller controls the first drive motor to move the transmission chain plate, causing the plastic shell placed in the first limiting groove to move towards the direction of the second fixed frame. When the plastic shell moves directly below the vacuum suction cup, the controller controls the first rotary motor to rotate the rotating shaft, so that the suction port of the vacuum suction cup faces upward, and each vacuum suction cup corresponds to the position of each cardboard stack. Then, the controller controls the fourth hydraulic cylinder to move the second sliding base vertically upward, so that the vacuum suction cup contacts the bottom of the cardboard. Then, the controller controls the vacuum pump to provide suction to the vacuum suction cup, and the vacuum suction cup picks up the bottom of the cardboard. Finally, the controller controls the second hydraulic cylinder and the second... Three hydraulic cylinders drive the first and second clamping plates to move in opposite directions, loosening the cardboard. Then, a controller controls a fourth hydraulic cylinder to move the second sliding base vertically downwards a distance appropriate to the thickness of the cardboard. The controller then controls the second and third hydraulic cylinders to re-clamp the cardboard, and the fourth hydraulic cylinder continues to move the second sliding base vertically downwards. The controller then controls the first rotary motor to rotate the rotating shaft 180 degrees, aligning the vacuum suction cup's nozzle downwards. Finally, the fourth hydraulic cylinder moves the second sliding base vertically downwards, placing the cardboard in the corresponding position. The vacuum pump stops working, the vacuum suction cup loses its suction force, the second sliding base resets, and the controller controls the first drive motor to drive the transmission chain plate to continue moving towards the pressing device. When the transmission chain plate moves directly under the pressure plate, the controller controls the fifth hydraulic cylinder to drive the third sliding base to move vertically downward. At the same time, the controller controls the heating element to provide heat energy to the pressure plate. When the pressure plate presses on the cardboard, the heat energy on the pressure plate is transferred back to the plastic shell through the cardboard. Since the melting point of the plastic shell is lower than that of the cardboard, the plastic shell will soften first and stick to the cardboard, completing the assembly of the pen's plastic packaging shell, thereby greatly improving production efficiency.

[0005] A further feature of this invention is that the third sliding base is provided with a plurality of connecting shafts slidably connected to the third sliding base and buffer springs connected to the connecting shafts, the pressure plate is fixedly connected to the connecting shafts, and the two ends of the buffer springs are respectively fixedly connected to the pressure plate and the third sliding base.

[0006] By adopting the above technical solution, since the third sliding base is provided with several connecting shafts slidably connected to the third sliding base and buffer springs connected to the connecting shafts, when the pressure plate is pressed down, the buffer springs will provide a buffering force to the pressure plate, thereby reducing the impact force of the pressure plate on the cardboard and plastic shell, avoiding deformation of the assembled plastic packaging shell, and thus reducing the product defect rate. A further feature of this utility model is that the equipment base is also provided with a CCD vision inspection instrument and an alarm. The CCD vision inspection instrument is located directly above the conveyor chain plate and between the stamping block and the vacuum suction cup. The controller is electrically connected to both the CCD vision inspection instrument and the alarm.

[0007] Using the above technical solution, since the CCD vision inspection is located directly above the conveyor chain plate and between the stamping block and the vacuum suction cup, after the plastic shell is stamped into the second limiting groove on the conveyor chain plate, the conveyor chain plate moves to directly below the CCD vision inspection instrument. The CCD vision inspection instrument will take a real-time image of the conveyor chain plate and compare it with the stored standard state image information. If the two match, it means that the number of plastic shells carried on the conveyor chain plate is correct, and there is no need to issue an alarm. If the two do not match, it means that the plastic shells placed on the conveyor chain plate are incorrect or the position of the plastic shells is incorrect. In this case, the CCD vision inspection instrument sends an electrical signal to the controller, and the controller controls the alarm to sound. The staff then comes to manually adjust the equipment, thereby improving the product qualification rate.

[0008] A further feature of this invention is that the equipment base is further provided with a fourth fixed frame, a conveyor belt connected to the fourth fixed frame, and a second drive motor for driving the conveyor belt. One end of the conveyor belt corresponds to the end position of the conveyor chain plate, and the upper surface of the conveyor belt is lower than the lower surface of the conveyor chain plate. The controller is electrically connected to the second drive motor. Using the above technical solution, since the upper surface of the conveyor belt is lower than the lower surface of the conveyor chain plate, when the plastic shell completes the pressing process, and the first drive motor drives the conveyor chain plate to the end of the first fixed frame, the conveyor chain plate will flip, causing the plastic shell in the second limiting groove to fall onto the conveyor belt. Then, the controller controls the second drive motor to rotate the conveyor belt, thereby completing automatic material discharge. This further improves the automation level of the device and reduces labor costs. Attached Figure Description

[0009] Appendix Figure 1This is a schematic diagram of the structure of an automatic assembly device for pen plastic packaging shells according to a specific embodiment of the present invention.

[0010] Appendix Figure 2 This is a schematic diagram of the structure of an automatic assembly device for pen plastic packaging shells according to a specific embodiment of the present invention.

[0011] 1-Equipment base, 2-Plastic shell feeding device, 3-Paperboard feeding device, 4-Pressure pressing device, 5-Controller, 6-First fixed frame, 7-Limiting plate, 8-First sliding base, 9-Punching block, 10-Transmission chain plate, 11-First hydraulic cylinder, 12-First drive motor, 13-First limiting groove, 14-Second limiting groove, 15-Second fixed frame, 16-First clamping plate, 17-Second clamping plate, 18-Second hydraulic cylinder, 19-Third hydraulic cylinder, 20-Rotating... 21-Spindle, 22-Fixed base, 23-Second sliding base, 24-Vacuum suction cup, 25-Connecting pipe, 26-Vacuum pump, 27-First rotary motor, 28-Fourth hydraulic cylinder, 29-Third fixed frame, 30-Third sliding base, 31-Pressure plate, 32-Heating element, 33-Fifth hydraulic cylinder, 34-Buffer spring, 35-CCD vision inspection instrument, 36-Alarm, 37-Fourth fixed frame, 38-Transmission belt, 39-Second drive motor. Detailed Implementation

[0012] like Figure 1-2As shown, an automatic assembly device for pen plastic packaging shells includes a base 1, a plastic shell feeding device 2 connected to the base 1, a cardboard feeding device 3 connected to the base 1, a pressing device 4 connected to the base 1, and a controller 5. The plastic shell feeding device 2 includes a first fixed frame 6 connected to the base 1, a limiting plate 7 fixedly connected to the first fixed frame 6, a first sliding base 8 slidably connected to the first fixed frame 6, a plurality of stamping blocks 9 fixedly connected to the first sliding base 8, a plurality of transmission chain plates 10 connected to the first fixed frame 6, a first hydraulic cylinder 11 for driving the first sliding base 8 to move vertically, and a first drive motor 12 for driving the transmission chain plates 10 to move. The limiting plate 7... The plate 7 is provided with several first limiting grooves 13, and the conveyor chain plate 10 is provided with several second limiting grooves 14. The stamping block 9 is adapted to the shape and size of the first limiting grooves 13 and the second limiting grooves 14 respectively. When the conveyor chain plate 10 moves a certain distance, the second limiting grooves 14 on the conveyor chain plate 10 correspond to the positions of the first limiting grooves 13 and the stamping block 9 respectively. The cardboard feeding device 3 includes a second fixed frame 15 connected to the equipment base 1, several first clamping plates 16 slidably connected to the second fixed frame 15, several second clamping plates 17 slidably connected to the second fixed frame 15, a second hydraulic cylinder 18 for driving the first clamping plates 16 to move horizontally, and a second hydraulic cylinder 18 for driving the second clamping plates 17 to move horizontally. The system includes a third hydraulic cylinder 19 for directional movement, a rotating shaft 20 movably connected to the second fixed frame 15, a fixed base 21 fixedly connected to the rotating shaft 20, a second sliding base 22 slidably connected to the fixed base 21, several vacuum suction cups 23 fixedly connected to the second sliding base 22, a connecting pipe 24 connected to the vacuum suction cups 23, a vacuum pump 25 connected to the connecting pipe 24, a first rotary motor 26 for driving the rotating shaft 20 to rotate, and a fourth hydraulic cylinder 27 for driving the second sliding base 22 to move vertically. A first clamping plate 16 and a corresponding second clamping plate 17 form a clamping assembly. The position of each clamping assembly corresponds vertically to the position of the first limiting groove 13. The first clamping plate 16... The movement directions of 6 and the second clamping plate 17 are opposite. The pressing device 4 includes a third fixed frame 28 fixedly connected to the equipment base 1, a third sliding base 29 slidably connected to the third fixed frame 28, a pressure plate 30 fixedly connected to the third sliding base 29, a heating element 31 connected to the pressure plate 30, and a fifth hydraulic cylinder 32 for driving the third sliding base 29 to slide vertically. The transmission chain plate 10 can pass directly below the pressure plate 30 and the vacuum suction cup 23. The controller 5 is electrically connected to the first hydraulic cylinder 11, the second hydraulic cylinder 18, the third hydraulic cylinder 19, the fourth hydraulic cylinder 27, the fifth hydraulic cylinder 32, the vacuum pump 25, the first rotary motor 26, the first drive motor 12, and the heating element 31.

[0013] First, the cardboard to be processed is stacked into several piles. Then, each pile of cardboard is placed in its corresponding clamping assembly. The controller 5 controls the second hydraulic cylinder 18 and the third hydraulic cylinder 19 to drive the first clamping plate 16 and the second clamping plate 17 to move towards each other, thus clamping the cardboard. Then, the processed and heat-pressed plastic sheet with a plastic shell is fed directly below the stamping block 9. The controller 5 then controls the first hydraulic cylinder 11 to drive the first sliding base 8 to move vertically downward. Since the second limiting groove 14 on the transmission chain plate 10 corresponds to the positions of the first limiting groove 13 and the stamping block 9 respectively when the transmission chain plate 10 moves a certain distance, the stamping block 9 will press the joint between the plastic shell and the plastic sheet to break, causing the plastic shell to detach from the plastic sheet. The plastic shell falls into the first limiting groove 13. Then, the controller 5 controls the first drive motor 12 to drive the transmission chain plate 10 to move, causing the plastic shell placed in the first limiting groove 13 to move towards the direction of the second fixed frame 15. When the plastic shell moves to directly below the vacuum suction cup 23, the controller 5 controls the first rotary motor 26 to drive the rotary shaft 20 to rotate, so that the suction port of the vacuum suction cup 23 faces upward, and each vacuum suction cup 23 corresponds to the position of each cardboard stack. Then, the controller 5 controls the fourth hydraulic cylinder 27 to drive the second sliding base 22 to move vertically upward, so that the vacuum suction cup 23 contacts the bottom of the cardboard. Then, the controller 5 controls the vacuum pump 25 to provide suction to the vacuum suction cup 23, and the vacuum suction cup 23... The cardboard is gripped at the bottom. Then, the controller 5 controls the second hydraulic cylinder 18 and the third hydraulic cylinder 19 to drive the first clamping plate 16 and the second clamping plate 17 in opposite directions, causing the first clamping plate 16 and the second clamping plate 17 to release the cardboard. Then, the controller 5 controls the fourth hydraulic cylinder 27 to drive the second sliding base 22 to move vertically downward a certain distance, which is adapted to the thickness of the single cardboard. Then, the controller 5 controls the second hydraulic cylinder 18 and the third hydraulic cylinder 19 to drive the first clamping plate 16 and the second clamping plate 17 to clamp the cardboard again. Then, the fourth hydraulic cylinder 27 continues to drive the second sliding base 22 to move vertically downward. Finally, the controller 5 controls the first rotary motor 26 to drive the rotating shaft 20 to rotate 180 degrees. The vacuum suction cup 23 is positioned so that its suction port faces downwards. Then, the fourth hydraulic cylinder 27 drives the second sliding base 22 to move vertically downwards, placing the cardboard onto the plastic shell at the corresponding position. The vacuum pump 25 then stops working, the vacuum suction cup 23 loses its suction force, and the second sliding base 22 resets. The controller 5 then controls the first drive motor 12 to drive the transmission chain plate 10 to continue moving towards the pressing device 4. When the transmission chain plate 10 moves directly below the pressure plate 30, the controller 5 controls the fifth hydraulic cylinder 32 to drive the third sliding base 29 to move vertically downwards. Simultaneously, the controller 5 controls the heating element 31 to provide heat to the pressure plate 30. When the pressure plate 30 presses onto the cardboard, the heat from the pressure plate 30 is transferred back to the plastic shell through the cardboard.Because the melting point of the plastic shell is lower than that of cardboard, the plastic shell softens upon heating and bonds to the cardboard first, completing the assembly of the pen's plastic packaging shell, thus greatly improving production efficiency.

[0014] The third sliding base 29 is provided with a plurality of connecting shafts 33 slidably connected to the third sliding base 29 and buffer springs 34 connected to the connecting shafts 33. The pressure plate 30 is fixedly connected to the connecting shafts 33, and the two ends of the buffer springs 34 are respectively fixedly connected to the pressure plate 30 and the third sliding base 29.

[0015] Since the third sliding base 29 is provided with several connecting shafts 33 slidably connected to the third sliding base 29 and buffer springs 34 connected to the connecting shafts 33, when the pressure plate 30 is pressed down, the buffer springs 34 will provide a buffering force to the pressure plate 30, thereby reducing the impact force of the pressure plate 30 on the cardboard and plastic shell, avoiding deformation of the assembled plastic packaging shell, and thus reducing the defect rate of the product.

[0016] The equipment base 1 is also equipped with a CCD vision inspection instrument 35 and an alarm 36. The CCD vision inspection instrument 35 is located directly above the transmission chain plate 10 and between the stamping block 9 and the vacuum suction cup 23. The controller 5 is electrically connected to the CCD vision inspection instrument 35 and the alarm 36 respectively.

[0017] Since the CCD vision inspection is located directly above the transmission chain plate 10 and the CCD vision inspection instrument 35 is located between the stamping block 9 and the vacuum suction cup 23, after the plastic shell is stamped into the second limiting groove 14 on the transmission chain plate 10, the transmission chain plate 10 moves to directly below the CCD vision inspection instrument 35. The CCD vision inspection instrument 35 will take a real-time picture of the transmission chain plate 10 and compare it with the stored standard state picture information. If the two match, it means that the number of plastic shells carried on the transmission chain plate 10 is correct, and there is no need to issue an alarm. If the two do not match, it means that the plastic shells placed on the transmission chain plate 10 are incorrect or the position of the plastic shells is incorrect. In this case, the CCD vision inspection instrument 35 sends an electrical signal to the controller 5, and the controller 5 controls the alarm 36 to sound an alarm. The staff then comes to manually adjust the equipment, thereby improving the product qualification rate.

[0018] The equipment base 1 is also provided with a fourth fixed frame 37, a conveyor belt 38 connected to the fourth fixed frame 37, and a second drive motor 39 for driving the conveyor belt 38 to move. One end of the conveyor belt 38 corresponds to the end position of the conveyor chain plate 10. The height of the upper surface of the conveyor belt 38 is lower than the height of the lower surface of the conveyor chain plate 10. The controller 5 is electrically connected to the second drive motor 39.

[0019] Since the upper surface of the conveyor belt 38 is lower than the lower surface of the conveyor chain plate 10, when the plastic shell is pressed, the first drive motor 12 drives the conveyor chain plate 10 to the end of the first fixed frame 6, and the conveyor chain plate 10 will flip, causing the plastic shell in the second limiting groove 14 to fall onto the conveyor belt 38. Then, the controller 5 controls the second drive motor 39 to drive the conveyor belt 38 to rotate, thereby completing the automatic discharge. This can further improve the automation level of the device and reduce labor costs.

Claims

1. An automatic assembly device for plastic packaging shells of pens, characterized in that: The device base, the plastic shell feeding device connected to the device base, the paperboard feeding device connected to the device base, the pressing device connected to the device base and the controller, the plastic shell feeding device comprises a first fixed frame connected to the device base, a limiting plate fixedly connected to the first fixed frame, a first sliding base slidingly connected to the first fixed frame, a plurality of stamping blocks fixedly connected to the first sliding base, a plurality of transmission chain plates connected to the first fixed frame, a first hydraulic cylinder for driving the first sliding base to move in the vertical direction, and a first drive motor for driving the transmission chain plates to move, a plurality of first limiting grooves are arranged on the limiting plate, a plurality of second limiting grooves are arranged on the transmission chain plates, the shapes and sizes of the stamping blocks are matched with the first limiting grooves and the second limiting grooves respectively, when the transmission chain plates move a certain distance, the second limiting grooves on the transmission chain plates correspond to the positions of the first limiting grooves and the stamping blocks respectively, the paperboard feeding device comprises a second fixed frame connected to the device base, a plurality of first clamping plates slidingly connected to the second fixed frame, a plurality of second clamping plates slidingly connected to the second fixed frame, a second hydraulic cylinder for driving the first clamping plates to move in the horizontal direction, a third hydraulic cylinder for driving the second clamping plates to move in the horizontal direction, a rotating shaft movably connected to the second fixed frame, a fixed base fixedly connected to the rotating shaft, a second sliding base slidingly connected to the fixed base, a plurality of vacuum suction cups fixedly connected to the second sliding base, a connecting pipe connected to the vacuum suction cups, a vacuum pump connected to the connecting pipe, a first rotating motor for driving the rotating shaft to rotate, and a fourth hydraulic cylinder for driving the second sliding base to move in the vertical direction, one first clamping plate and one corresponding second clamping plate form a clamping assembly, the positions of each clamping assembly correspond to the positions of the first limiting grooves in the vertical direction, the moving directions of the first clamping plates and the second clamping plates are opposite, the pressing device comprises a third fixed frame fixedly connected to the device base, a third sliding base slidingly connected to the third fixed frame, a pressing plate fixedly connected to the third sliding base, a heating element connected to the pressing plate, and a fifth hydraulic cylinder for driving the third sliding base to slide in the vertical direction, the transmission chain plates can pass through the positions directly below the pressing plate and the vacuum suction cups, and the controller is electrically connected with the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, the fourth hydraulic cylinder, the fifth hydraulic cylinder, the vacuum pump, the first rotating motor, the first drive motor and the heating element respectively.

2. An apparatus for the automatic assembly of plastic packaging cases for pens according to claim 1, characterized in that: A plurality of connecting shafts slidingly connected to the third sliding base and buffer springs connected to the connecting shafts are arranged on the third sliding base, the pressing plate is fixedly connected to the connecting shafts, and the buffer springs are fixedly connected to the pressing plate and the third sliding base at two ends respectively.

3. An apparatus for the automatic assembly of plastic pen casings according to claim 1, characterized in that: A CCD visual detector and an alarm are further arranged on the device base, the CCD visual detector is located directly above the transmission chain plates and between the stamping blocks and the vacuum suction cups, and the controller is electrically connected with the CCD visual detector and the alarm respectively.

4. An apparatus for the automatic assembly of plastic pen casings according to claim 1, characterized in that: The device base is further provided with a fourth fixing frame, a transmission belt connected to the fourth fixing frame, and a second driving motor for driving the transmission belt to move, one end of the transmission belt corresponds to the end position of the transmission chain plate, the upper surface of the transmission belt is lower than the height of the lower surface of the transmission chain plate, and the controller is electrically connected with the second driving motor.

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