A plastic bag packing device and method

Abstract

The application discloses a plastic bag packing device and method, and belongs to the field of plastic bag packing. The device comprises a winding mechanism, a gathering mechanism and a clamping mechanism. The winding mechanism comprises a first connecting piece which is slidably arranged. A second connecting piece is detachably connected to the first connecting piece. Two second clamping plates are rotatably arranged on the second connecting piece. A sliding push plate is slidably arranged on the first connecting piece. A limiting pin is slidably arranged on the winding mechanism. Limiting holes are arranged on the second connecting piece. The gathering mechanism comprises a cylindrical rod which is slidably arranged. The winding mechanism can be used to wind the continuous bag. The winding mechanism also has a tightening function. Under the cooperation of the gathering mechanism, the opening of the dustproof bag is rotated and tightened. The tightened opening is inserted into the internal paper tube. The sliding push plate can insert the paper tube plug into the sealing end of the internal paper tube to seal the paper tube. The process can effectively save time and labor, and the packing efficiency is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of plastic bag packaging, in particular to a plastic bag packaging device and method. BACKGROUND

[0002] Plastic bags are bags made of thin and flammable plastic film. They are widely used because of their low cost, extremely light weight, large capacity, and ease of storage.

[0003] Plastic packaging film or continuous bag, both are wrapped with plastic bag outside the paper tube. In the packaging process, a dust bag is needed to be sleeved on the body of the plastic bag, and the dust bag opening is twisted and inserted back into the paper tube, and then a paper tube plug is added outside to make the dust bag in a sealed state, which can also prevent the paper tube from deforming due to extrusion during transportation.

[0004] In the actual packaging process, the staff usually inserts the rolled plastic bag paper tube into a cylindrical roller, manually sleeves the bag from the tail, then carries the sleeved plastic bag into a carton, and then manually twists and inserts the dust bag opening into the paper tube plug. The process mainly relies on manual twisting and carrying, which has the problems of high labor intensity and low production efficiency. SUMMARY

[0005] The present application provides a plastic bag packaging device and method, which can solve the problem of high labor intensity and low production efficiency in the prior art, which mainly relies on manual bagging, tightening and paper tube plug insertion of the rolled plastic bag.

[0006] A plastic bag packaging device, comprising a rolling mechanism, a gathering mechanism and a clamping mechanism;

[0007] The rolling mechanism comprises a first connecting piece slidably arranged, a second connecting piece detachably connected to the first connecting piece, two second clamping plates rotatably arranged on the second connecting piece, a sliding push plate slidably arranged on the first connecting piece, a limiting pin slidably arranged on the rolling mechanism, and a limiting hole arranged on the second connecting piece.

[0008] The gathering mechanism comprises a first inclined track and a second inclined track arranged symmetrically, a first sliding block slidably arranged on the first inclined track and the second inclined track, and a cylindrical rod slidably arranged on the first sliding block.

[0009] Further, a support seat is provided, and a first limiting roller, a guide roller and a second limiting roller are fixedly arranged on the support seat. The first limiting roller and the second limiting roller each comprise two groups of rotating rollers, the guide roller comprises one group of rotatable rotating rollers, and the guide roller is located between the first limiting roller and the second limiting roller.

[0010] Further, one end of the support seat is provided with a conveying mechanism, the conveying mechanism comprises a support table, the support table is fixedly connected with the support seat, a conveying belt is installed on the support table, a top plate is fixedly connected with the support table through a back support, a transverse plate is arranged between the conveying belt and the top plate, the transverse plate is fixedly connected with the back support, and a packaging box is placed on the conveying belt.

[0011] Further, the clamping mechanism comprises a bottom connecting plate, the bottom connecting plate is fixedly connected with the support seat, a first telescopic cylinder is fixedly arranged on the bottom connecting plate, a clamping assembly is fixedly arranged at the output end of the first telescopic cylinder, and the clamping assembly comprises a first clamping plate.

[0012] Further, the winding mechanism comprises a machine base, a first L-shaped mounting plate is fixedly arranged on the machine base, a rectangular mounting plate is fixedly arranged at the top end of the first L-shaped mounting plate, a first sliding groove is arranged on the rectangular mounting plate, a first sliding rod is fixedly arranged in the first sliding groove, an end moving plate is slidably arranged on the first sliding rod, the end moving plate is slidably connected with the first sliding groove, a first motor is fixedly arranged at one end of the end moving plate, a second telescopic cylinder is fixedly arranged at the other end of the end moving plate, the output end of the first motor is connected with the second telescopic cylinder, a first connecting piece is fixedly connected with the output end of the second telescopic cylinder, a plurality of second sliding rods are fixedly arranged between the machine base and the first L-shaped mounting plate, a rectangular plate is slidably arranged on the second sliding rods, the rectangular plate is slidably connected with the cylinder body part of the second telescopic cylinder, a circular ring is fixedly arranged on the second telescopic cylinder and located between the rectangular plate and the end moving plate, a third telescopic cylinder and a telescopic rod are fixedly arranged on the rectangular plate, a sliding push plate is fixedly connected with the output end of the third telescopic cylinder, the sliding push plate is fixedly connected with the movable end of the telescopic rod, and the sliding push plate is slidably arranged outside the first connecting piece.

[0013] Further, the detachable connection mode between the first connecting piece and the second connecting piece comprises clamping, a limiting hole is further arranged on the second connecting piece in the transverse direction, a first rectangular groove is arranged at the end of the second connecting piece, two second clamping plates are rotatably arranged in the first rectangular groove, and the two second clamping plates are driven by motors respectively.

[0014] Furthermore, the base is also fixedly provided with a second L-shaped mounting plate and a convex mounting plate. A third motor is fixedly provided on the second L-shaped mounting plate, and two first pulleys are rotatably provided on the convex mounting plate. The two first pulleys are connected by a first synchronous belt, and one of the first pulleys is fixedly connected to the output end of the third motor. A cylindrical shaft is coaxially and fixedly connected to the other first pulley. A gearbox is also fixedly provided on the base. The gearbox and the cylindrical shaft are both provided with the same second pulleys. The two second pulleys are connected by a second synchronous belt. The gearbox is rotatably connected to the second pulleys. The cylindrical shaft is coaxially and fixedly connected to the second pulleys. A first gear is coaxially and fixedly provided at the end of the cylindrical shaft. A second rectangular groove is also fixedly provided on the rectangular plate. A first rack is fixedly provided on the top of the inner wall of the second rectangular groove. The first gear meshes with the first rack for transmission. A second gear is rotatably provided on the top of the gearbox. Meshing bevel gears are provided inside the gearbox. The two bevel gears are fixedly connected to the second pulley and the second gear on the gearbox, respectively.

[0015] Furthermore, a limiting pin is slidably provided at the top of the convex mounting plate, and a second rack is fixedly provided on the side of the limiting pin, with the second gear meshing with the second rack.

[0016] Furthermore, the gathering mechanism includes a support rod, a motor housing fixedly mounted at the top of the support rod, a movable mounting groove fixedly mounted on the motor housing, a first threaded rod rotatably mounted within the movable mounting groove, a rectangular fitting threaded onto the first threaded rod, the rectangular fitting being a rectangular ring structure, a first inclined rail and a second inclined rail fixedly mounted on the motor housing, a lever fixedly mounted at one end of each of the two cylindrical rods, a second threaded rod rotatably mounted on the motor housing, the second threaded rod being located at the axis of symmetry of the first and second inclined rails, a second slider threaded onto the second threaded rod, a limiting groove fixedly mounted on the motor housing, the limiting groove being slidably connected to the second slider, a first bending plate and a second bending plate fixedly mounted on the second slider, both first sliders being located between the first bending plate and the second bending plate, and springs connecting each of the two first sliders to the second slider, the motor housing containing several motors, two of which are respectively connected to the first threaded rod and the second threaded rod.

[0017] A method for packaging with plastic bags includes the following steps:

[0018] S1: First, the continuous roll bag to be packaged passes through the first limiting roller, the guide roller and the second limiting roller in sequence, and the inner paper tube is clamped and fixed by the two second clamps on the winding mechanism. Then, the continuous roll bag is fixed on the inner paper tube and the winding mechanism is controlled to rotate to realize the winding of the continuous roll bag.

[0019] S2: After the winding is completed, the dustproof bag is sleeved on the wound finished product continuous roll bag, clamped through the clamping mechanism, and then the two cylindrical rods on the gathering mechanism are used to smooth the upper end bag opening and the lower end bag opening of the dustproof bag to the position between the two second clamping plates, the two cylindrical rods are withdrawn, the two second clamping plates clamp the bag opening of the dustproof bag and are rotated and tightened, and then are inserted back into the inner paper tube, the paper tube plug is pre-sleeved on the second connecting piece, and the sliding push plate pushes the paper tube plug forward until the paper tube plug is inserted into the inner paper tube and the bag opening of the dustproof bag is pressed tightly, and the winding mechanism drives the packaged finished product continuous roll bag to move into the packaging box again and is conveyed along the conveying belt.

[0020] Beneficial effects

[0021] 1. The winding mechanism is provided, the second clamping plate is arranged on the winding mechanism, the second clamping plate can act as an inner supporting mechanism during winding, the inner paper tube is fixed from the inside, and the inner paper tube is driven to rotate to realize winding of the continuous roll bag, after winding is completed, the second clamping plate also has a tightening function, under the cooperation of the gathering mechanism, the bag opening of the dustproof bag is smoothed to between the two second clamping plates, the two second clamping plates clamp and rotate and tighten, and can also move transversely to insert the tightened bag opening into the inner paper tube again, and then the paper tube plug is inserted into the sealing end of the inner paper tube through the moving sliding push plate to seal, so that time and labor are effectively saved, and the packaging efficiency is higher.

[0022] 2. The bag opening of the dustproof bag is smoothed to between the two clamping plates through the gathering mechanism, the first inclined track and the second inclined track are arranged on the gathering mechanism, and synchronous downward movement of the upper end cylindrical rod and the lower end cylindrical rod can be realized through rotation of the second threaded rod, so that the bag opening of the dustproof bag is reduced, clamping and tightening are facilitated, and the rectangular sleeve is also arranged, the rectangular sleeve can drive the tab on the cylindrical rod to move, the cylindrical rod is withdrawn to between the two second clamping plates, and influence on tightening is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic diagram of the present application Figure I ;

[0024] Figure 2 It is a structure schematic diagram of a transmission mechanism and a clamping mechanism of the present application

[0025] Figure 3 It is a structure schematic diagram of a winding mechanism of the present application

[0026] Figure 4 It is an enlarged schematic diagram of structure A in the present application Figure 3

[0027] Figure 5 It is a front view of the whole structure of the present application

[0028] ​Figure 6 For the whole structure of the present application Figure 5 Enlarged schematic view of the structure of part B in the present application

[0029] Figure 7 For the whole structure of the present application Figure II ;

[0030] Figure 8 For the whole structure of the present application Figure I ;

[0031] Figure 9 For the whole structure of the present application Figure II ;

[0032] Figure 10 For the whole structure of the present application

[0033] Figure 11 Schematic view of the work of smoothing the upper and lower bag openings of the dustproof bag (part a of the figure is a schematic view of the dustproof bag after being sleeved and the second clamp being in an open state; part b of the figure is a schematic view of the work of smoothing the upper and lower bag openings of the dustproof bag to gradually close by the cylindrical rod; and part c of the figure is a schematic view of the work of clamping the upper and lower bag openings of the dustproof bag by the second clamp);

[0034] Figure 12 Schematic view of the work of tightening, inserting into the inner paper tube and inserting the paper tube plug of the dustproof bag (part d of the figure is a schematic view of the work of rotating and tightening the dustproof bag and inserting it into the inner paper tube; and part e of the figure is a schematic view of the work of inserting the paper tube plug into the inner paper tube).

[0035] Explanation of reference signs:

[0036] 1, support seat; 2, first limiting roller; 3, guide roller; 4, second limiting roller; 5, transmission mechanism; 6, packaging box; 7, winding mechanism; 8, gathering mechanism; 9, clamping mechanism; 10, finished continuous roll bag; 11, paper tube plug; 501, support table; 502, conveyor belt; 503, back support; 504, top plate; 505, transverse plate; 701, machine base; 702, first L-shaped mounting plate; 703, rectangular mounting plate; 704, first sliding rod; 705, end moving plate; 706, first motor; 707, second telescopic cylinder; 708, circular ring; 709, third telescopic cylinder; 710, telescopic rod; 711, sliding push plate; 712, first connecting piece; 713, second connecting piece; 714, cylindrical shaft; 715, first gear; 716, second synchronous belt; 717, gear box; 718, second gear; 719, limiting hole; 720, first rectangular groove; 721, second clamping plate; 722, rectangular plate; 723, second rectangular groove; 724, second sliding rod; 725, first rack; 726, second L-shaped mounting plate; 727, third motor; 728, first pulley; 729, first synchronous belt; 730, convex mounting plate; 731, limiting pin; 732, second pulley; 801, support rod; 802, motor box; 803, moving installation groove; 804, first threaded rod; 805, rectangular sleeve; 806, first inclined rail; 807, second inclined rail; 808, first sliding block; 809, cylindrical rod; 810, tab; 811, second threaded rod; 812, second sliding block; 813, first bent plate; 814, second bent plate; 815, limiting groove; 816, spring; 901, bottom connecting plate; 902, first telescopic cylinder; 903, clamping assembly; 904, first clamping plate; 1001, inner paper tube; 1002, continuous roll bag. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0038] As Figure 1As shown, the plastic bag packaging device provided by the embodiment of the application comprises a support seat 1, the support seat 1 is fixedly provided with a first limiting roller 2, a guide roller 3 and a second limiting roller 4, wherein the first limiting roller 2 and the second limiting roller 4 each comprise two groups of rotating rollers, specifically two rotating cylinders, and the distance between the two rotating cylinders is adjustable, the guide roller 3 comprises a group of rotatable rotating rollers, the guide roller 3 is located between the first limiting roller 2 and the second limiting roller 4, and the height of the guide roller 3 is lower than that of the first limiting roller 2 and the second limiting roller 4; in use, the continuous roll bag to be packaged is first threaded between the two rotating rollers of the first limiting roller 2, then threaded into the second limiting roller 4 through the bottom of the guide roller 3, and finally transmitted to the winding area for winding; one end of the support seat 1 is provided with a transmission mechanism 5, the transmission mechanism 5 is placed with a packaging box 6, the winding area is located at the threading end of the continuous roll bag, and the winding area is provided with a winding mechanism 7, a gathering mechanism 8 and a clamping mechanism 9; wherein the transmission mechanism 5 is used for conveying the packaging box 6, the winding mechanism 7 is used for winding the continuous roll bag onto the inner paper tube 1001, and simultaneously assisting the packaged continuous roll bag in packaging, such as Figure 10 As shown, the finished product continuous roll bag 10 specifically comprises an inner paper tube 1001, and the continuous roll bag 1002 is wound on the inner paper tube 1001; after the finished product continuous roll bag 10 is wound, it needs to be sleeved with a dustproof bag, specifically, a large dustproof bag is sleeved outside the wound finished product continuous roll bag 10, the bag opening of the dustproof bag is twisted and inserted into the inner paper tube 1001, and then the paper tube plug 11 is inserted into the inner paper tube 1001 at this end, so that the bag opening of the dustproof bag is clamped and deformation of the inner paper tube 1001 in the transportation process is prevented; in the actual packaging process, this process is mostly manually operated, and the bag is manually inserted and the plug is manually inserted; therefore, the embodiment is provided with the gathering mechanism 8, the clamping mechanism 9 and the winding mechanism 7, which can realize the twisting of the bag opening of the dustproof bag and the insertion of the paper tube plug 11, thereby saving a lot of time.

[0039] As shown in Figure 2 The transmission mechanism 5 comprises a support table 501, the support table 501 is fixedly connected with the support seat 1, a conveying belt 502 is installed on the support table 501, a top plate 504 is fixedly connected with the support table 501 through a back support 503, a transverse plate 505 is arranged between the conveying belt 502 and the top plate 504, the transverse plate 505 is fixedly connected with the back support 503, the packaging box 6 is placed on the conveying belt 502, and the packaging box 6 is a paper packaging box; in use, a plurality of packaging boxes 6 are placed on the conveying belt 502, the conveying belt 502 drives the packaging boxes 6 to the specified position, the wound finished product continuous roll bag 10 is moved into the packaging box 6 by the winding mechanism 7, and the packaging box 6 after being sleeved with the finished product continuous roll bag 10 is moved to another area by the conveying belt 502 for sealing and packaging.

[0040] As shown in Figure 2As shown, the clamping mechanism 9 includes a bottom connecting plate 901 fixedly connected with the support seat 1, the bottom connecting plate 901 is fixedly provided with a first telescopic cylinder 902, the output end of the first telescopic cylinder 902 is fixedly provided with a clamping assembly 903, the clamping assembly 903 in the embodiment includes a first clamping plate 904, and the clamping assembly 903 also includes a mechanical claw in the implementation of the technical solution, and other structures capable of achieving clamping functions can be used as conventional technical means in the field, and details are not described herein again. The clamping mechanism 9 is mainly used for clamping the paper tube before winding or the finished product continuous roll bag 10 after winding, and the first clamping plate 904 is a hand of the mechanical claw for clamping an object.

[0041] The finished product continuous roll bag 10 provided with the dustproof bag needs to be manually tightened and the paper tube plug 11 is added during the packaging process. The dustproof bag can ensure that the finished product continuous roll bag 10 is not contaminated during transportation, and the paper tube plug 11 can protect the internal paper tube 1001 during transportation to avoid deformation of the internal paper tube 1001 due to impact or extrusion during transportation. The actual packaging process is mostly manually bagging, tightening, bagging and adding the paper tube plug 11. The paper tube plug 11 needs to be manually inserted with a certain pressure, which is laborious and time-consuming to operate. Therefore, the winding mechanism 7 is provided to solve the above problems.

[0042] As shown in Figure 3 The winding mechanism 7 includes a machine base 701, the machine base 701 is fixedly provided with a first L-shaped mounting plate 702, the top end of the first L-shaped mounting plate 702 is fixedly provided with a rectangular mounting plate 703, the rectangular mounting plate 703 is provided with a first sliding groove, the first sliding groove is fixedly provided with a first sliding rod 704, the first sliding rod 704 is slidably provided with an end moving plate 705, the end moving plate 705 is also slidably connected with the first sliding groove, one end of the end moving plate 705 is fixedly provided with a first motor 706, the other end is fixedly provided with a second telescopic cylinder 707, the output end of the first motor 706 is connected with the second telescopic cylinder 707, the first motor 706 drives the second telescopic cylinder 707 to rotate in work, the output end of the second telescopic cylinder 707 is fixedly connected with a first connecting piece 712, a plurality of second sliding rods 724 are further fixedly arranged between the machine base 701 and the first L-shaped mounting plate 702, a rectangular plate 722 is slidably arranged on the second sliding rod 724, the rectangular plate 722 is slidably connected with the cylinder part of the second telescopic cylinder 707, a circular ring 708 is fixedly arranged on the second telescopic cylinder 707 between the rectangular plate 722 and the end moving plate 705, a third telescopic cylinder 709 and a telescopic rod 710 are further fixedly arranged on the rectangular plate 722, the output end of the third telescopic cylinder 709 is fixedly connected with a sliding push plate 711, the sliding push plate 711 is fixedly connected with the elongated end of the telescopic rod 710, and the sliding push plate 711 is slidably sleeved on the outside of the first connecting piece 712.

[0043] As shown in Figure 3As shown, the first connecting piece 712 is detachably connected with a second connecting piece 713, the detachable connection between the first connecting piece 712 and the second connecting piece 713 comprises clamping, that is, the first connecting piece 712 and the second connecting piece 713 are moved to two sides to achieve separation, the second connecting piece 713 is further provided with a limiting hole 719 in the transverse direction, and the end of the second connecting piece 713 is provided with a first rectangular groove 720, and two second clamping plates 721 are rotatably arranged in the first rectangular groove 720, and the two second clamping plates 721 are driven by a motor, that is, the motor drives the two second clamping plates 721 to rotate, so as to achieve the opening and closing of the two second clamping plates 721.

[0044] As shown in Figure 3 , the second L-shaped mounting plate 726 and the convex mounting plate 730 are further fixedly arranged on the base 701, the third motor 727 is fixedly arranged on the second L-shaped mounting plate 726, the two first pulleys 728 are rotatably arranged on the convex mounting plate 730, the two first pulleys 728 are connected by the first synchronous belt 729, and one of the two first pulleys 728 is fixedly connected with the output end of the third motor 727, so that the third motor 727 can drive the two first pulleys 728 to synchronously rotate through the first synchronous belt 729, as shown in Figure 4 , the upper first pulley 728 is further coaxially and fixedly connected with the cylindrical shaft 714, the gear box 717 is further fixedly arranged on the base 701, the same second pulley 732 is arranged on the gear box 717 and the cylindrical shaft 714, the two second pulleys 732 are connected by the second synchronous belt 716, the gear box 717 is rotatably connected with the second pulley 732 thereon, the cylindrical shaft 714 is coaxially and fixedly connected with the second pulley 732 thereon, and the end of the cylindrical shaft 714 is further coaxially and fixedly provided with the first gear 715, as shown in Figure 3 , the rectangular plate 722 is further fixedly provided with the second rectangular groove 723, the first rack 725 is fixedly arranged on the inner wall of the second rectangular groove 723, and the first gear 715 is in meshing transmission with the first rack 725, as shown in Figure 4 , the second gear 718 is further rotatably arranged on the top of the gear box 717, and the gear box 717 is provided with intermeshing bevel gears, the two bevel gears are respectively fixedly connected with the second pulley 732 and the second gear 718 on the gear box 717, when the first pulley 728 rotates, the second gear 718 can be synchronously rotated through the second synchronous belt 716 and the intermeshing bevel gears in the gear box 717, and in use, the third motor 727 can drive the first gear 715 and the second gear 718 to synchronously rotate.

[0045] The limiting pin 731 is slidably arranged on the top end of the convex mounting plate 730, as shown in Figure 3 , the limiting pin 731 can be inserted into the limiting hole 719 when sliding, as shown in Figure 5 , and Figure 6As shown, the side of the limit pin 731 is fixedly provided with a second rack (not labeled in the figure), and the second gear 718 is engaged with the second rack. When the first gear 715 rotates, it is engaged with the first rack 725 to drive the rectangular plate 722 to slide on the second slide rod 724. The second gear 718 rotates synchronously with the first gear 715, the first gear 715 is engaged with the second rack on the limit pin 731 to drive the movement of the limit pin 731, so that the limit pin 731 can be inserted into the limiting hole 719.

[0046] Specifically, in use, the inner paper tube 1001 is placed on the clamping mechanism 9, and the clamping mechanism 9 is driven to move upward to move the inner paper tube 1001 to the same height as the winding mechanism 7. First, control the two second clamping plates 721 to rotate and close until the two second clamping plates 721 can be inserted into the inner paper tube 1001. At this time, the two second clamping plates 721 fix the inner paper tube 1001 from the inside. Then, the continuous roll bag is fixed on the inner paper tube 1001, and the first motor 706 is controlled to work to drive the second telescopic cylinder 707 to rotate, further realizing the rotation of the two second clamping plates 721 driving the inner paper tube 1001 to wind the continuous roll bag 1002. After winding is completed, the connected continuous roll bag is disconnected, and the dustproof bag is manually sleeved outside the wound finished product continuous roll bag 10. The clamping mechanism 9 moves upward again to clamp the finished product continuous roll bag 10 with the dustproof bag sleeved thereon. The two second clamping plates 721 exit the inner paper tube 1001 and move outward. Control the two second clamping plates 721 to open to a certain angle, and pass through the gathering mechanism 8 to roll the bag opening of the dustproof bag to the position between the two second clamping plates 721. The two second clamping plates 721 rotate and clamp the bag opening of the dustproof bag. After the bag opening is fixed, the second telescopic cylinder 707 is driven to rotate to rotate and tighten the bag opening of the dustproof bag. Then, the second telescopic cylinder 707 is controlled to extend, so that the two second clamping plates 721 drive the tightened bag opening of the dustproof bag to move towards the inner paper tube 1001 until the two second clamping plates 721 insert the tightened bag opening of the dustproof bag back into the inner paper tube 1001. At this time, the paper tube plug 11 has been pre-sleeved on the second connecting piece 713. The third telescopic cylinder 709 controls the sliding push plate 711 to move forward, and the sliding push plate 711 pushes the paper tube plug 11 along the second connecting piece 713 forward until the paper tube plug 11 is inserted into the inner paper tube 1001. Then, the sliding push plate 711 and the two second clamping plates 721 are controlled to retreat, respectively, so as to complete the tightening, inner insertion of the bag opening of the dustproof bag, and the insertion of the paper tube plug 11. Finally, the second telescopic cylinder 707 is driven to extend, so that the two second clamping plates 721 extend into the inner part of the finished product continuous roll bag 10, and the packaged finished product continuous roll bag 10 is pushed forward into the packaging box 6 for subsequent processing.

[0047] As Figure 3 , Figure 4 and Figure 7As shown, it should be noted that the specific operation method of sleeving the paper tube plug 11 on the second connecting piece 713 is that the first gear 715 and the second gear 718 are synchronously rotated by driving the third motor 727, the first gear 715 is engaged with the first rack 725 to drive the rectangular plate 722 to move, at the same time, the second gear 718 is engaged with the second rack on the limiting pin 731 to drive the limiting pin 731 to move horizontally, the limiting pin 731 can be inserted into the limiting hole 719 on the second connecting piece 713, since the second telescopic cylinder 707 is slidingly connected with the rectangular plate 722, that is, when the rectangular plate 722 starts to move towards the circular ring 708, it is actually sliding on the second telescopic cylinder 707, before the rectangular plate 722 contacts the circular ring 708, the second telescopic cylinder 707 and the first connecting piece 712 connected thereon are kept stationary, which facilitates the horizontal movement of the limiting pin 731 to be inserted into the limiting hole 719, when the limiting pin 731 is inserted into the limiting hole 719, the rectangular plate 722 contacts the circular ring 708, and the second telescopic cylinder 707 and the first connecting piece 712 connected thereon are synchronously moved by the circular ring 708, at this time, the second connecting piece 713 is fixed on the limiting pin 731, and the first connecting piece 712 and the second connecting piece 713 can be separated by moving the first connecting piece 712, then the paper tube plug 11 can be directly sleeved on the first connecting piece 712 or the second connecting piece 713.

[0048] In the process of packaging the finished product continuous roll bag 10, it is necessary to roll the dustproof bag opening to the two second clamping plates 721, so as to facilitate the clamping of the two second clamping plates 721, if the rolling is manually performed, the process is tedious, and if the operator's hands are contaminated, too much contact with the dustproof bag may contaminate the finished product continuous roll bag 10 inside, which may affect the movement, therefore, the gathering mechanism 8 is proposed to solve the above problems.

[0049] As Figure 8 , Figure 9 and Figure 10As shown, the gathering mechanism 8 comprises a support rod 801, the top end of the support rod 801 is fixedly provided with a motor box 802, the motor box 802 is fixedly provided with a moving installation groove 803, the moving installation groove 803 is rotatably provided with a first threaded rod 804, the first threaded rod 804 is threadedly matched with a rectangular sleeve 805, the rectangular sleeve 805 is a rectangular ring structure, the motor box 802 is also fixedly provided with a first inclined rail 806 and a second inclined rail 807, the first inclined rail 806 and the second inclined rail 807 are symmetrically arranged, the first inclined rail 806 and the second inclined rail 807 are slidably provided with a first sliding block 808, the two first sliding blocks 808 are slidably provided with a cylindrical rod 809, one end of the two cylindrical rods 809 is fixedly provided with a push piece 810, the motor box 802 is also rotatably provided with a second threaded rod 811, the second threaded rod 811 is located at the symmetry axis position of the first inclined rail 806 and the second inclined rail 807, the second threaded rod 811 is threadedly matched with a second sliding block 812, the motor box 802 is also fixedly provided with a limiting groove 815, the limiting groove 815 is slidably connected with the second sliding block 812, the second sliding block 812 is fixedly provided with a first bent plate 813 and a second bent plate 814, the two first sliding blocks 808 are located between the first bent plate 813 and the second bent plate 814, and the two first sliding blocks 808 are connected with the second sliding block 812 through springs 816, a plurality of motors are arranged in the motor box 802, two of the motors are connected with the first threaded rod 804 and the second threaded rod 811 respectively, and the first threaded rod 804 and the second threaded rod 811 can be driven to rotate through the motor box 802.

[0050] In use, when the outer part of the rolled finished product continuous roll bag 10 is sleeved with a dustproof bag, the two cylindrical rods 809 are in the maximum spacing state, at this time, it is ensured that the two cylindrical rods 809 are located outside the dustproof bag, then the second threaded rod 811 is driven to rotate through the motor box 802, the rotation of the second threaded rod 811 realizes the movement of the second sliding block 812 towards the motor box 802, at this time, under the pushing of the first bent plate 813, the two first sliding blocks 808 will move downwards along the first inclined rail 806 and the second inclined rail 807 respectively until they move to the lowermost part of the inclination, when they move to the lowermost part, the two push pieces 810 are inserted into the rectangular sleeve 805, and the two cylindrical rods 809 are used to smooth the upper and lower bag openings of the dustproof bag to be close to the fit, at this time, the bag opening that is smoothed is clamped through the rotation of the two second clamping plates 721, and the first threaded rod 804 is rotated, the rectangular sleeve 805 moves on the moving installation groove 803 and drives the two push pieces 810 to move, so that the two cylindrical rods 809 move synchronously until they are separated from the position between the two second clamping plates 721, and the two second clamping plates 721 perform subsequent rotation and tightening work.

[0051] As shown in the drawings, Figures 11-12 A plastic bag packaging device and a packaging method thereof are provided.

[0052] S1: First, the continuous bag to be packaged is sequentially passed from the first limiting roller 2, the guide roller 3 and the second limiting roller 4, and the inner paper tube 1001 is clamped and fixed by the two second clamping plates 721 on the winding mechanism 7, then the continuous bag is fixed on the inner paper tube 1001, and the winding mechanism 7 is controlled to rotate, realizing the winding of the continuous bag;

[0053] S2: After winding, the dustproof bag is sleeved on the wound finished continuous bag 10, as shown in part a of Figure 11 , and is clamped by the clamping mechanism 9, at this time the second clamping plates are in an open state, as shown in part b of Figure 11 , then the two cylindrical rods 809 on the gathering mechanism 8 smooth the upper end bag opening and the lower end bag opening of the dustproof bag to the position between the two second clamping plates 721, at this time the upper end bag opening and the lower end bag opening of the dustproof bag gradually approach, the two second clamping plates 721 are in an open state, and the two cylindrical rods 809 are withdrawn, as shown in part c of Figure 11 and part d of Figure 12 , the two second clamping plates 721 clamp the bag opening of the dustproof bag and rotate to tighten, and are then inserted back into the inner paper tube 1001, as shown in part e of Figure 12 , the sliding push plate 711 pushes the paper tube plug 11 forward until the paper tube plug 11 is inserted into the inner paper tube 1001 and the bag opening of the dustproof bag is pressed tightly, the inner paper tube 1001 is a cylindrical hollow structure, the diameter of the hollow structure (i.e. the inner diameter of the inner paper tube 1001) is matched with the diameter of the paper tube plug 11, realizing the insertion of the paper tube plug 11 into the inner paper tube 1001, and the wound finished continuous bag 10 is moved to the packaging box 6 again by the winding mechanism 7 and is conveyed by the conveying belt 502.

[0054] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, and a particular orientation configuration and operation, therefore, it cannot be understood as a limitation on the present application. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0055] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] The above describes one embodiment of the present application in detail, but the content described is only a preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still be attributed to the patent coverage of the present application.

Claims

1. A plastic bag packaging device, characterized in that, It includes a winding mechanism (7), a gathering mechanism (8), and a clamping mechanism (9); The winding mechanism (7) includes a first connecting member (712) that is slidably provided, a second connecting member (713) that is detachably connected to the first connecting member (712), two second clamping plates (721) that are rotatably provided on the second connecting member (713), a sliding push plate (711) that is slidably provided on the first connecting member (712), a limiting pin (731) that is slidably provided on the winding mechanism (7), and a limiting hole (719) that is provided on the second connecting member (713). The gathering mechanism (8) includes a first inclined track (806) and a second inclined track (807) arranged symmetrically. A first slider (808) is slidably provided on both the first inclined track (806) and the second inclined track (807). A cylindrical rod (809) is slidably provided on both the first slider (808). The output end of the first motor (706) is connected to the second telescopic cylinder (707), and the output end of the second telescopic cylinder (707) is fixedly connected to the first connector (712). The rectangular plate (722) is slidably connected to the cylinder body of the second telescopic cylinder (707); A third telescopic cylinder (709) and a telescopic rod (710) are also fixedly provided on the rectangular plate (722). A sliding push plate (711) is fixedly connected to the output end of the third telescopic cylinder (709), and the sliding push plate (711) is fixedly connected to the movable end of the telescopic rod (710). The gathering mechanism (8) includes a support rod (801), a motor housing (802) is fixedly mounted on the top of the support rod (801), a movable mounting groove (803) is fixedly mounted on the motor housing (802), a first threaded rod (804) is rotatably mounted in the movable mounting groove (803), a rectangular assembly (805) is threaded onto the first threaded rod (804), the rectangular assembly (805) is a rectangular ring structure, a first inclined rail (806) and a second inclined rail (807) are also fixedly mounted on the motor housing (802), a lever (810) is fixedly mounted on one end of each of the two cylindrical rods (809), a second threaded rod (811) is also rotatably mounted on the motor housing (802), the second threaded rod (811) is located on the first inclined rail (806) and The second inclined track (807) is located at the axis of symmetry. The second threaded rod (811) is threaded with a second slider (812). The motor box (802) is also fixedly provided with a limiting groove (815). The limiting groove (815) is slidably connected to the second slider (812). The second slider (812) is fixedly provided with a first bending plate (813) and a second bending plate (814). The two first sliders (808) are located between the first bending plate (813) and the second bending plate (814). The two first sliders (808) are respectively connected to the second slider (812) with springs (816). The motor box (802) is provided with several motors, two of which are respectively connected to the first threaded rod (804) and the second threaded rod (811). The clamping mechanism (9) includes a bottom connecting plate (901), which is fixedly connected to the support base (1). A first telescopic cylinder (902) is fixedly provided on the bottom connecting plate (901), and a clamping assembly (903) is fixedly provided at the output end of the first telescopic cylinder (902). The clamping assembly (903) includes a first clamping plate (904).

2. The plastic bag packaging device as described in claim 1, characterized in that, It also includes a support base (1), on which a first limiting roller (2), a guide roller (3) and a second limiting roller (4) are fixedly provided. The first limiting roller (2) and the second limiting roller (4) each include two sets of rotating rollers. The guide roller (3) includes a set of rotatable rotating rollers. The guide roller (3) is located between the first limiting roller (2) and the second limiting roller (4).

3. A plastic bag packaging device as described in claim 2, characterized in that, One end of the support base (1) is provided with a transmission mechanism (5). The transmission mechanism (5) includes a support platform (501). The support platform (501) is fixedly connected to the support base (1). A conveyor belt (502) is installed on the support platform (501). A top plate (504) is fixedly connected to the support platform (501) through a back support (503). A transverse plate (505) is provided between the conveyor belt (502) and the top plate (504). The transverse plate (505) is fixedly connected to the back support (503). A packaging box (6) is placed on the conveyor belt (502).

4. A plastic bag packaging device as described in claim 3, characterized in that, The winding mechanism (7) includes a base (701), on which a first L-shaped mounting plate (702) is fixedly mounted. A rectangular mounting plate (703) is fixedly mounted at the top of the first L-shaped mounting plate (702). A first sliding groove is provided on the rectangular mounting plate (703), and a first sliding rod (704) is fixedly mounted inside the first sliding groove. An end moving plate (705) is slidably mounted on the first sliding rod (704). The end moving plate (705) is slidably connected to the first sliding groove. A... A first motor (706) is fixedly installed at one end, and a second telescopic cylinder (707) is fixedly installed at the other end. Several second slide rods (724) are also fixedly installed between the base (701) and the first L-shaped mounting plate (702). A rectangular plate (722) is slidably installed on the second slide rod (724). A ring (708) is fixedly installed on the second telescopic cylinder (707) between the rectangular plate (722) and the end moving plate (705). A sliding push plate (711) is slidably installed outside the first connecting member (712).

5. A plastic bag packaging device as described in claim 4, characterized in that, The detachable connection between the first connector (712) and the second connector (713) includes snap-fit. The second connector (713) is also provided with a limiting hole (719) laterally. The end of the second connector (713) is provided with a first rectangular groove (720). Two second clamping plates (721) are rotatably provided in the first rectangular groove (720). The two second clamping plates (721) are driven by motors respectively.

6. A plastic bag packaging device as described in claim 5, characterized in that, The base (701) is also fixedly provided with a second L-shaped mounting plate (726) and a convex mounting plate (730). A third motor (727) is fixedly provided on the second L-shaped mounting plate (726). Two first pulleys (728) are rotatably provided on the convex mounting plate (730). The two first pulleys (728) are connected by a first synchronous belt (729). One of the first pulleys (728) is fixedly connected to the output end of the third motor (727). A cylindrical shaft (714) is coaxially and fixedly connected to the other first pulley (728). A gearbox (717) is also fixedly provided on the base (701). The gearbox (717) and the cylindrical shaft (714) are both provided with the same second pulleys (732). The two second pulleys (732) are connected by a first synchronous belt (729). The gearbox (717) is rotatably connected to the second pulley (732) via the second synchronous belt (716). The cylindrical shaft (714) is coaxial with and fixedly connected to the second pulley (732). The end of the cylindrical shaft (714) is also coaxially and fixedly provided with the first gear (715). The rectangular plate (722) is also fixedly provided with the second rectangular groove (723). The top of the inner wall of the second rectangular groove (723) is fixedly provided with the first rack (725). The first gear (715) meshes with the first rack (725) for transmission. The top of the gearbox (717) is also rotatably provided with the second gear (718). The gearbox (717) is provided with meshing bevel gears. The two bevel gears are fixedly connected to the second pulley (732) and the second gear (718) on the gearbox (717) respectively.

7. A plastic bag packaging device as described in claim 6, characterized in that, The top of the convex mounting plate (730) is slidably provided with a limiting pin (731), and a second rack is fixedly provided on the side of the limiting pin (731), and the second gear (718) meshes with the second rack.

8. A method for packaging plastic bags, applied to the plastic bag packaging device according to any one of claims 3-7, characterized in that, Includes the following steps: S1: First, the continuous roll bag to be packaged passes through the first limiting roller (2), the guide roller (3), and the second limiting roller (4) in sequence, and the inner paper tube is clamped and fixed by the two second clamps (721) on the winding mechanism (7). Then, the continuous roll bag is fixed on the inner paper tube, and the winding mechanism (7) is controlled to rotate to realize the winding of the continuous roll bag. S2: After the winding is completed, the dust bag is put on the finished roll bag after winding and clamped by the clamping mechanism (9). Then, the two cylindrical rods (809) on the gathering mechanism (8) straighten the upper and lower openings of the dust bag to the position between the two second clamping plates (721). The two cylindrical rods (809) are removed, and the two second clamping plates (721) clamp the opening of the dust bag and rotate and tighten it. Then, it is stuffed back into the inner paper tube. The paper tube plug has been pre-fitted on the second connector (713). The sliding push plate (711) pushes the paper tube plug forward until the paper tube plug is inserted into the inner paper tube and the opening of the dust bag is pressed tightly. The winding mechanism (7) once again drives the packaged finished roll bag to move into the packaging box (6) and is conveyed by the conveyor belt (502).

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