Environment-friendly plastic uptake device

Abstract

The utility model relates to the field of plastic uptake forming equipment, and discloses an environment-friendly plastic uptake device which comprises a workbench, a feeding box, a preheating box, a hot plastic uptake forming box and a discharging box are sequentially arranged at the bottom of the workbench in the conveying direction of thick sheets, and a tray used for bearing a plurality of stacked thick sheets is arranged in the feeding box in a lifting mode. A lifting assembly is arranged in the feeding box corresponding to movement of the tray, an automatic pushing mechanism used for assisting thick sheet conveying is arranged on the workbench in the feeding direction, a frame is arranged on the workbench, partition plates are arranged on the periphery of the frame, a top plate is arranged at the top of the frame, and a sealed space is defined by the multiple partition plates and the top plate. The top plate is provided with an air purifying device communicating with the sealed space, and the air purifying device comprises an exhaust fan arranged on the top wall of the top plate and an adsorption filter plate detachably arranged between an air inlet of the exhaust fan and the top plate. The plastic uptake device has the effect of improving the environment-friendly safety degree of the plastic uptake device.

Description

Technical Field

[0001] The present application relates to the field of blister forming equipment, and in particular to an environmentally friendly blister forming device. Background Art

[0002] The blister process is a common plastic processing technology. It mainly heats flat plastic sheets or thermoplastics to soften them, and then uses vacuum to absorb them on the mold surface to achieve the production of various products. It has the advantages of low cost, high production efficiency, smooth product surface, and meeting the needs of various complex-shaped products. This technology is widely used in plastic packaging, lighting, advertising, decoration and other industries.

[0003] The blister process is a kind of plastic heating and plasticization. The waste gas produced during the melting stage of the plastic is very complex, including polyvinyl chloride particles, hydrogen chloride, toluene, ethyl acetate and other organic gases. Allowing the waste gas to fill the working environment is likely to endanger the health of the workers.

[0004] A Chinese patent with announcement number CN209350864U discloses a thick sheet material vacuum forming device, including a device body, the device body is provided with a workbench, both ends of the workbench are provided with a mold device and a feeding device, and the device body is provided with a control device; the mold device includes a movable mold and a fixed mold, the fixed mold is fixed on the workbench, the movable mold is installed above the fixed mold, and is connected to a first driving mechanism; the feeding device includes a feeding station, and a toggle rod provided at the upper end of the feeding station, the toggle rod is connected to the second driving mechanism, and the feeding station is provided with a heating tube; the control device is provided at the lower end of the workbench, and the control device is connected to the mold device and the feeding device.

[0005] In the above-mentioned blister forming device, the worker first places the thick sheet on the feeding device for preheating, and then pushes the slightly softened thick sheet after preheating onto the mold device by using a toggle lever to perform hot pressing molding of the thick sheet. During this process, the worker is required to place the raw materials and take the molding materials. The entire blister forming device is in a state of being connected to the working environment. At this time, the worker will be in close contact with the exhaust gas generated during the thermoplastic process, which will affect the worker's health. Utility Model Content

[0006] In order to improve the environmental protection and safety of the blister device, the present application provides an environmentally friendly blister device.

[0007] The environmentally friendly blister device provided in this application adopts the following technical solution:

[0008] An environmentally friendly blister device comprises a workbench, wherein a loading box, a preheating box, a thermoforming box and a discharging box are sequentially arranged at the bottom of the workbench along the conveying direction of thick sheets, the interiors of the loading box and the discharging box are both connected to the workbench, and the side walls of the loading box and the discharging box are both hinged with box doors, a tray for supporting a plurality of stacked thick sheets is lifted in the loading box, a lifting assembly is arranged in the loading box corresponding to the movement of the tray, and a support for assisting the loading and unloading of the sheet is arranged on the workbench along the feeding direction. An automatic pushing mechanism for thick sheet material transmission; a frame is arranged on the workbench, and partitions are arranged around the frame, a top plate is arranged on the top of the frame, a sealed space is enclosed between the partitions and the top plate, and the top plate is provided with a wind purification device connected to the sealed space, the wind purification device includes an exhaust fan arranged on the top wall of the top plate and a detachable adsorption filter plate arranged between the exhaust fan inlet and the top plate, and the air inlet and outlet on the exhaust fan are both connected to the sealed space below the top plate and are provided with a ventilation pipe.

[0009] By adopting the above technical scheme, the staff opens the box door of the feeding box of the blister device, and stacks multiple thick sheets on the tray in the feeding box at one time. The height of the tray is driven by the lifting component to be consistent with the height of a thick sheet each time, and the protruding thick sheet is moved to the preheating box along the conveying direction by the automatic pushing mechanism for preliminary softening, and then continues to be pushed to the hot blister forming box for hot pressing blister forming. The automatic pushing mechanism pushes the formed product to the blanking port of the discharge box, and drops it into the discharge box through the blanking port. Therefore, the multiple thick sheets stacked in the feeding box are pushed out one by one by the tray, forming an automatic flow operation. Finally, the multiple thick sheets in the feeding box fall into the discharge box after the successful blister operation. The staff can open the box door and take out multiple finished products at one time. In this process, the blister operation is carried out in a sealed space, which can reduce the risk of workers absorbing waste gas during the operation and affecting their health. The waste gas generated by the heating of the plastic material in the sealed space is filtered and adsorbed by the adsorption filter plate, and the air in the sealed space is circulated and renewed through the exhaust fan, reducing the impact of the waste gas on the workers when loading and unloading materials.

[0010] Optionally, two opposite sides of the inner walls of the loading box adjacent to the box door are provided with limit slots in the vertical direction, and a slider is slidably arranged in each of the limit slots, and the slider is arranged on a pallet. The lifting assembly includes a screw rod vertically rotated in one of the limit slots and a servo motor driving the screw rod to rotate, and the screw rod is threadably rotated to pass through a slider arranged in the same limit slot.

[0011] By adopting the above technical solution, the servo motor drives the screw to rotate, and the rotation of the screw drives the slider to rotate synchronously. Under the limit of the limit slide, the slider can only move up and down along the guide of the limit slide, thereby driving the pallet to synchronously lift several thick sheets and move upward synchronously. Since the servo motor has the characteristics of high precision, the upward movement distance of the pallet each time can be achieved to just match the height of a thick sheet.

[0012] Optionally, the automatic pushing mechanism includes a conveyor belt arranged on both sides of the workbench along the length direction of the workbench and a plurality of push plates arranged on the surface of the conveyor belt for pushing thick sheets, and the distance between two adjacent push plates on the same conveyor belt is greater than the length of a thick sheet, the two conveyor belts are parallel to the length direction of the workbench, and the push plates on the two conveyor belts are arranged opposite to each other.

[0013] By adopting the above technical solution, the intermittent operation of the conveyor belt can drive the push plate to contact the side wall of the thick sheet during movement, and push it to the top of the preheating box and the thermoforming box for heating and thermoforming, until the finished product is pushed into the unloading box. The automation of the thermoforming device is improved, the workload of the staff is reduced, and the safety of the staff is also improved.

[0014] Optionally, a plastic mold assembly is provided on the thermoforming box, and the plastic mold assembly includes a male mold raised and lowered in the thermoforming box and a pressing plate located above the male mold, a vacuum pump is provided on the thermoforming box and connected to the inner cavity, a plurality of suction holes are provided on the male mold vertically connected to the inner cavity of the thermoforming box, a mounting seat is provided on the bottom wall of the top plate, a driving cylinder is vertically connected between the pressing plate and the mounting seat, and a heating plate is provided at the bottom of the pressing plate.

[0015] By adopting the above technical scheme, when the push plate pushes the preheated and softened thick plate onto the thermoforming box, the edge of the thick plate is mounted on the top wall of the thermoforming box, and the pressing plate and the punch move relative to each other until the heating plate presses the thick plate against the punch. At this time, the vacuum pump sucks away the gas in the inner cavity of the thermoforming box, and the thick plate is sucked through a number of suction holes, so that it is completely adsorbed and fitted on the punch according to the shape of the punch. Then the vacuum pump stops working and deflates the inner cavity of the thermoforming box. At the same time, the pressing plate and the punch move in opposite directions, and the finished product remains on the top wall of the thermoforming box and is finally pushed to the lower material box by the push plate.

[0016] Optionally, the pressure plate is provided with a plurality of vertically arranged guide rods, the mounting seat is provided with a guide groove corresponding to each guide rod, the guide rods correspond to the guide grooves one by one and are slidably fitted, a stop block is provided on the top of each guide rod, and a retaining ring is provided at the opening of each guide groove corresponding to the stop block, when the guide rod moves down and can no longer move, the lower bottom wall of the stop block contacts the inner top wall of the retaining ring.

[0017] By adopting the above technical solution, the sliding cooperation between the guide rod and the guide groove improves the stability of the pressure plate during the lifting process.

[0018] Optionally, a cooling element is provided in the material discharge box.

[0019] By adopting the above technical solution, the provision of the cooling element facilitates the accelerated solidification of the finished product when it falls to the bottom of the material box, thereby reducing the possibility of extrusion and deformation of several finished products due to stacking when they fall into the material box.

[0020] Optionally, some of the partitions are transparent partitions.

[0021] By adopting the above technical solution, the provision of the transparent partition makes it easier for the staff to timely observe the abnormalities in the automatic blister operation process in the sealed space, thereby improving the speed of handling problems of the blister device.

[0022] Optionally, each of the cabinet doors is provided with a visual window and a handle.

[0023] By adopting the above technical solution, the setting of the viewing window makes it convenient for the staff to timely observe the number of thick sheets in the loading box and the finished products in the unloading box, and to timely open the box door through the handle to replenish materials and unload goods.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The staff opens the door of the loading box of the blister device, and stacks multiple thick sheets on the tray in the loading box at one time. The lifting component drives the tray to rise to the same height as a thick sheet each time, and the automatic pushing mechanism moves the protruding thick sheet along the conveying direction to the preheating box for preliminary softening, and then continues to push it to the hot blister forming box for hot pressing blister forming. The automatic pushing mechanism pushes the formed product to the blanking port of the discharge box, and drops it into the discharge box through the blanking port. Therefore, the multiple thick sheets stacked in the loading box are pushed out one by one by the tray, forming an automatic flow operation. Finally, the multiple thick sheets in the loading box fall into the discharge box after the successful blister operation. The staff can open the box door and take out multiple finished products at one time. In this process, the blister operation is carried out in a sealed space, which can reduce the risk of workers absorbing waste gas during the operation and affecting their health. The waste gas generated by the heating of the plastic material in the sealed space is filtered and adsorbed by the adsorption filter plate, and the air in the sealed space is circulated and renewed through the exhaust fan, reducing the impact of the waste gas on the workers when loading and unloading materials;

[0026] 2. The servo motor drives the screw to rotate, and the screw rotation drives the slider to rotate synchronously. Under the limit of the limit slide, the slider can only move up and down along the guide of the limit slide, thereby driving the tray to synchronously lift several thick sheets and move upward synchronously. Due to the high-precision characteristics of the servo motor, the upward movement distance of the tray each time can just match the height of a thick sheet;

[0027] 3. The intermittent operation of the conveyor belt can drive the push plate to contact the side wall of the thick sheet during movement, and push it to the top of the preheating box and the thermoforming box for heating and thermoforming, until the finished product is pushed into the unloading box. This improves the automation of the thermoforming device, reduces the workload of the staff, and also improves the safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0029] Figure 2 It is a cross-sectional view of the overall structure of an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 01. Thick sheet; 1. Workbench; 11. Frame; 12. Partition; 13. Top plate; 131. Mounting seat; 1311. Guide groove; 1312. Retaining ring; 132. Driving cylinder; 15. Control panel; 2. Loading box; 21. Box door; 211. Visual window; 22. Handle; 23. Tray; 231. Slider; 24. Limiting slide; 3. Preheating box; 31. Heating tube; 4. Thermoforming box; 41. Hydraulic Cylinder; 5. Feed box; 51. Cooling component; 6. Lifting assembly; 61. Screw; 611. Bevel gear; 62. Servo motor; 7. Mould assembly; 71. Punch; 711. Air intake hole; 72. Press plate; 721. Guide rod; 7211. Stop block; 722. Heating plate; 8. Automatic feeding mechanism; 81. Conveyor belt; 82. Push plate; 9. Air purification device; 91. Exhaust fan; 911. Ventilation pipe; 92. Adsorption filter plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-2 This application is described in further detail.

[0033] The embodiment of the present application discloses an environmentally friendly plastic blister device.

[0034] Reference Figure 1 and Figure 2 An environmentally friendly blister device includes a workbench 1, the bottom of the workbench 1 is connected and fixedly provided with a loading box 2, a preheating box 3, a hot blister forming box 4 and a discharge box 5 in sequence along the conveying direction of the thick sheet 01, the side walls of the loading box 2 and the discharge box 5 are hinged with box doors 21, and the box doors 21 are fixedly provided with visual windows 211 and handles 22, a tray 23 is arranged in the loading box 2, a lifting component 6 is arranged in the loading box 2 corresponding to the tray 23, a plurality of heating tubes 31 are arranged in the preheating box 3, a plastic mold component 7 is arranged on the hot blister forming box 4, and a cooling component 51 is arranged in the discharge box 5, and an automatic pushing mechanism 8 is arranged on the workbench 1 along the feeding direction. A frame 11 is fixedly provided on the workbench 1, and transparent partitions 12 are fixedly provided on all four sides of the frame 11. A top plate 13 is also fixedly provided on the top of the frame 11. A sealed space is enclosed between the four partitions 12 and the top plate 13, and the top plate 13 is provided with a wind purification device 9 connected to the sealed space.

[0035] Reference Figure 1 and Figure 2, the staff opens the box door 21 of the feeding box 2 of the blister device, and stacks multiple thick sheets on the tray 23 in the feeding box 2 at one time. The height of each rise of the tray 23 is consistent with the height of a thick sheet through the lifting component 6, and the protruding thick sheet is moved to the preheating box 3 along the conveying direction through the automatic pushing mechanism 8 for preliminary softening, and then continues to push a thick sheet to the hot blister molding box 4 for hot pressing blister molding. The automatic pushing mechanism 8 pushes the molded product to the blanking port of the unloading box 5, and falls into the unloading box 5 through the blanking port. In this process, the multiple thick sheets stacked in the feeding box 2 are pushed out one by one by the tray 23, forming an automatic flow operation. Finally, the multiple thick sheets in the feeding box 2 fall into the unloading box 5 after the blister operation is successful. The staff can open the box door 21 and take out multiple finished products at one time. In this process, the exhaust gas generated by the blister operation can be purified and removed in time in the sealed space through the purification of the air purification device 9.

[0036] Reference Figure 1 and Figure 2 , the two inner side walls of the loading box 2 adjacent to the box door 21 are vertically provided with limited slots 24, each limited slot 24 is slidably provided with a slider 231, and the slider 231 is fixedly provided on the tray 23. The lifting assembly 6 includes a screw 61 and a servo motor 62, the screw 61 is threadedly rotated to penetrate the slider 231 on the side away from the preheating box 3, and is vertically rotated in the limited slot 24 where the slider 231 is located. The servo motor 62 is fixedly provided on the side wall of the loading box 2, and its output shaft extends into the limited slot 24, a bevel gear 611 is fixedly provided on the output shaft, and a bevel gear 611 meshing with the screw 61 is fixedly provided at the bottom end of the screw 61.

[0037] Reference Figure 2 The automatic pushing mechanism 8 includes a conveyor belt 81 and a plurality of push plates 82. The conveyor belt 81 is fixedly arranged on both sides of the workbench 1 along the length direction of the workbench 1, and the two conveyor belts 81 are parallel to the length direction of the workbench 1. The plurality of push plates 82 are arranged on the surface of the conveyor belt 81 at equal intervals, and the push plates 82 on the two conveyor belts 81 are arranged opposite to each other. The distance between two adjacent push plates 82 on the same conveyor belt 81 is greater than the length of a thick sheet 01, so the push plate 82 on one side below the conveyor belt 81 pushes the plurality of thick sheets 01 to move along the feeding direction.

[0038] Reference Figure 1 and Figure 2The mold assembly 7 includes a punch 71 and a pressing plate 72. A hydraulic cylinder 41 is fixedly arranged at the inner bottom of the thermoplastic forming box 4. The punch 71 is fixedly arranged at the top of the piston rod of the hydraulic cylinder 41, and the punch 71 is slidably matched with the thermoplastic forming box 4. The size of the punch 71 in this embodiment is smaller than that of the thick sheet 01. A vacuum pump 42 is fixedly arranged on the side wall of the thermoplastic forming box 4. The suction pipe of the vacuum pump 42 passes through the side wall of the thermoplastic forming box 4 and is connected to the inner cavity. A plurality of suction holes 711 are provided on the punch 71 along the vertical direction to connect to the inner cavity of the thermoplastic forming box 4.

[0039] Reference Figure 1 and Figure 2 A mounting seat 131 is fixedly provided on the bottom wall of the top plate 13, a driving cylinder 132 is vertically fixedly connected between the pressing plate 72 and the mounting seat 131, four vertically arranged guide rods 721 are fixedly provided on the four edges corresponding to the top of the pressing plate 72, and a guide groove 1311 is provided on the mounting seat 131 corresponding to each guide rod 721, and the guide rods 721 correspond to the guide grooves 1311 one by one and slide in cooperation. A stop block 7211 is integrally formed on the top of each guide rod 721, and a retaining ring 1312 is integrally formed at the open end of each guide groove 1311. When the guide rod 721 moves downward to the point where it cannot move further, the lower bottom wall of the stop block 7211 contacts the inner top wall of the retaining ring 1312. A heating plate 722 is also fixedly provided on the bottom of the pressing plate 72.

[0040] Reference Figure 2 The cooling component 51 can be a cooling rod, a cooling plate or an air cooler, etc. The cooling component 51 in this embodiment is an air cooler, which is fixedly arranged on the side wall of the discharge box 5, and the air duct of the air cooler passes through the side wall of the discharge box 5 and extends to the interior of the discharge box 5.

[0041] Reference Figure 1 and Figure 2 The air purification device 9 includes an exhaust fan 91 and an adsorption filter plate 92. The exhaust fan 91 is fixedly arranged on the top wall of the top plate 13, and the air inlet and outlet on the exhaust fan 91 are connected to the sealed space below the top plate 13 and are provided with a ventilation pipe 911. The adsorption filter plate 92 is installed in series in the middle of the ventilation pipe 911 at the air inlet of the exhaust fan 91 through a flange and bolts.

[0042] Reference Figure 1 A control panel 15 is fixedly arranged on the side wall of the blister device, and all electrical appliances in the blister device are electrically connected to the control panel 15.

[0043] The implementation principle of an environmentally friendly blister device in the embodiment of the present application is as follows: a staff member opens the box door 21 of the loading box 2 of the blister device, and stacks multiple thick sheets on the tray 23 in the loading box 2 at one time, and controls the servo motor 62 through the control panel 15 to drive the tray 23 to lift the thick sheet, and through the rotation of the conveyor belt 81, the two push plates 82 moved to the back of the thick sheet push the thick sheet 01 to the preheating box 3 along the conveying direction for preliminary softening, and then continues to push the thick sheet to the hot blister molding box 4 for hot pressing blister molding during the relative movement of the punch 71 and the heating plate 722, and then the push plate 82 pushes the molded product to the blanking port of the discharge box 5, and drops it through the blanking port to the inside of the discharge box 5 cooled by the cold air blower. During this process, the multiple thick sheets stacked in the loading box 2 are pushed out one by one by the tray 23, forming an automatic assembly line operation. Finally, the multiple thick sheets in the loading box 2 fall into the unloading box 5 after the successful blistering operation. The staff can then open the box door 21 and take out multiple finished products at one time.

[0044] During this process, the air in the sealed space is purified by the exhaust fan 91 connected to the adsorption filter plate 92, so that the waste gas generated by the blister operation can be purified and removed in time.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An environmentally friendly blister device, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is provided with a loading box (2), a preheating box (3), a thermoforming box (4) and a unloading box (5) in sequence along the conveying direction of the thick sheet (01); the interiors of the loading box (2) and the unloading box (5) are both connected to the workbench (1), and the side walls of the loading box (2) and the unloading box (5) are both hinged with box doors (21); a tray (23) for supporting a plurality of stacked thick sheets (01) is provided in the loading box (2) for lifting; a lifting assembly (6) is provided in the loading box (2) corresponding to the movement of the tray (23); and an automatic pushing mechanism (8) for assisting the transmission of the thick sheet (01) is provided on the workbench (1) along the feeding direction; The workbench (1) is provided with a frame (11), and partitions (12) are provided on all four sides of the frame (11), and a top plate (13) is provided on the top of the frame (11), a sealed space is enclosed between a plurality of the partitions (12) and the top plate (13), and the top plate (13) is provided with an air purification device (9) connected to the sealed space, the air purification device (9) comprises an exhaust fan (91) arranged on the top wall of the top plate (13) and an adsorption filter plate (92) detachably arranged between the air inlet of the exhaust fan (91) and the top plate (13), and a ventilation pipe (911) is provided at the air inlet and outlet on the exhaust fan (91) which are connected to the sealed space below the top plate (13).

2. The environmentally friendly blister device according to claim 1, characterized in that: The two opposite sides of the inner wall of the loading box (2) adjacent to the box door (21) are vertically provided with limit slots (24), and a slider (231) is slidably arranged in each of the limit slots (24). The slider (231) is arranged on the tray (23), and the lifting component (6) includes a screw rod (61) vertically rotatably arranged in one of the limit slots (24) and a servo motor (62) driving the screw rod (61) to rotate, and the screw rod (61) passes through the slider (231) located in the same limit slot (24) through threaded rotation.

3. The environmentally friendly blister device according to claim 1, characterized in that: The automatic material pushing mechanism (8) comprises a conveyor belt (81) arranged on both sides of the workbench (1) along the length direction of the workbench (1) and a plurality of push plates (82) arranged on the surface of the conveyor belt (81) for pushing the thick sheet (01), and the distance between two adjacent push plates (82) on the same conveyor belt (81) is greater than the length of a thick sheet (01), the two conveyor belts (81) are parallel to the length direction of the workbench (1), and the push plates (82) on the two conveyor belts (81) are arranged one by one opposite to each other.

4. The environmentally friendly blister device according to claim 1, characterized in that: The thermoplastic forming box (4) is provided with a plastic mold assembly (7), the plastic mold assembly (7) comprising a male mold (71) that is lifted and lowered in the thermoplastic forming box (4) and a pressing plate (72) located above the male mold (71); a vacuum pump (42) is provided in the thermoplastic forming box (4) and connected to the inner cavity; a plurality of suction holes (711) are provided in the male mold (71) and connected to the inner cavity of the thermoplastic forming box (4) in a vertical direction; a mounting seat (131) is provided on the bottom wall of the top plate (13); a driving cylinder (132) is vertically connected between the pressing plate (72) and the mounting seat (131); and a heating plate (722) is provided at the bottom of the pressing plate (72).

5. The environmentally friendly blister device according to claim 4, characterized in that: The pressure plate (72) is provided with a plurality of vertically arranged guide rods (721), and the mounting seat (131) is provided with a guide groove (1311) corresponding to each guide rod (721). The guide rods (721) correspond to the guide grooves (1311) one by one and are slidably matched. A stop block (7211) is provided at the top of each guide rod (721), and a stop ring (1312) is provided at the open end of each guide groove (1311) corresponding to the stop block (7211). When the guide rod (721) moves downward and cannot move further, the lower bottom wall of the stop block (7211) contacts the inner top wall of the stop ring (1312).

6. The environmentally friendly blister device according to claim 1, characterized in that: A cooling element (51) is provided in the material discharge box (5).

7. The environmentally friendly blister device according to claim 1, characterized in that: Some of the partitions (12) are transparent partitions (12).

8. The environmentally friendly blister device according to claim 1, characterized in that: Each of the box doors (21) is provided with a visual window (211) and a handle (22).

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