A slow descending device for bagging of a secondary packaging machine

Abstract

The utility model discloses a kind of secondary packing machine bagging with slow descent device, including frame, frame is fixedly provided with warehouse body in, the two sides of warehouse body are movably penetrated and are provided with L-shaped plugboard, the two sides of warehouse body are provided with the horizontal insertion slot of cooperation L-shaped plugboard use, the lower end surface of L-shaped plugboard is fixed with multiple trapezoidal reinforcing plates, the two sides of warehouse body are provided with multiple vertical insertion slot of cooperation trapezoidal reinforcing plate use, the inner wall of each vertical insertion slot is rotatably provided with the roller one of cooperation trapezoidal reinforcing plate use, frame is provided with the drive mechanism one of cooperation L-shaped plugboard use in, frame is also provided with the plug shaft subassembly of cooperation warehouse body use;The utility model cooperates when using, multiple trapezoidal reinforcing plates and the cooperation of roller one are arranged, the weight of L-shaped support plate and the multiple small packaging products of receiving is shared, avoid the situation that L-shaped support plate is bent and deformed downward after receiving multiple small packaging products.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a slow-descent device for bagging in a secondary packaging machine. Background Technology

[0002] According to patent application CN106314911A, a vertical secondary packaging machine is disclosed. In operation, packaging bags enter the collection bin from both ends. First, an inserting cylinder temporarily stops the falling bags on the inserting plate. Simultaneously, a stepping device raises the conveyor belt, causing the inserting shaft to rise to the lower end of the inserting plate. Then, the inserting cylinder drops the packaging bags onto the inserting shaft. Meanwhile, packaging bags at the top of the bin continue to enter. Because the inserting shaft has pre-arranged the falling bags in a stacked manner within the bin, subsequent bags fall one layer at a time. The stepping device then descends one layer, ensuring minimal height difference during bag drop. When the stepping device reaches the bottom, the inserting cylinder temporarily stops the falling bags. Simultaneously, the inserting shaft cylinder drops the pre-arranged bags into the larger package. The stepping device then rises back to the lower end of the inserting plate, repeating the above process.

[0003] Although the slow-descent device of the secondary packaging machine can receive and slow down small packaged products falling into the bin, the part of the insert plate inside the bin is prone to downward bending deformation when receiving the falling small packaged products, which will affect the cylinder of the insert plate driving the insert plate away from the bin. Utility Model Content

[0004] This utility model provides a slow-descent device for bagging in a secondary packaging machine, which can solve the problem in the prior art where the part of the insert plate located inside the chamber is prone to downward bending deformation when receiving falling small packaged products, thus affecting the cylinder driving the insert plate away from the chamber.

[0005] A slow-descent device for bagging in a secondary packaging machine includes a frame, a chamber fixedly installed within the frame, L-shaped inserts movably extending through both sides of the chamber, and transverse slots for use with the L-shaped inserts on both sides of the chamber. Multiple trapezoidal reinforcing plates are fixed to the lower end face of the L-shaped inserts, and multiple vertical slots for use with the trapezoidal reinforcing plates are also provided on both sides of the chamber. A roller for use with the trapezoidal reinforcing plate is rotatably installed on the inner wall of each vertical slot. A drive mechanism for use with the L-shaped inserts is installed within the frame, and a shaft assembly for use with the chamber is also installed within the frame.

[0006] As a further technical solution of this utility model, the drive mechanism includes two outer mounting plates fixed to the top of the frame, two guide rods symmetrically fixed between the two outer mounting plates, inner mounting plates fixed on both sides of the compartment, guide rods fixedly penetrating the inner mounting plates, a movable plate movably arranged between each outer mounting plate and the adjacent inner mounting plate, guide rods movably penetrating the movable plate, one inner wall of the L-shaped insert plate fixedly connected to the side wall of the movable plate, and a drive unit 1 for use with the movable plate 1 on each outer mounting plate.

[0007] As a further technical solution of this utility model, each of the drive units includes a cylinder fixed to one side wall of the outer mounting plate. The telescopic end of the cylinder moves through the outer mounting plate. A connecting ear is fixed on the side wall of the movable plate. The end of the telescopic end of the cylinder is hinged to the connecting ear. A notch is provided on the side wall of the L-shaped insert plate to cooperate with the connecting ear.

[0008] As a further technical solution of this utility model, roller supports are fixed on both sides of the hopper body, and a second roller is rotatably arranged on the inner wall of each roller support. A side through groove is opened on one side of each inner mounting plate, and a third roller is rotatably arranged in each side through groove.

[0009] As a further technical solution of this utility model, the insert shaft assembly includes a lifting frame movably sleeved outside the chamber body. Two outer mounting plates are symmetrically fixed to the lower end face of the lifting frame. Two guide rods are fixedly and through the two outer mounting plates. Two movable plates are movably arranged between the two outer mounting plates. The guide rods movably pass through the movable plates. Multiple insert shaft bodies are fixed on the side of the movable plate near the chamber body. Multiple movable through slots for use with the insert shaft bodies are opened on both sides of the chamber body. A drive unit 2 for use with the movable plate 2 is provided on the outer mounting plate 2. Two drive mechanisms 3 for use with the lifting frame are provided on the frame.

[0010] As a further technical solution of this utility model, each of the drive units includes a cylinder two fixed on the side wall of the outer mounting plate two. The telescopic end of the cylinder two moves through the outer mounting plate two. A connecting ear two is fixed on one side of the movable plate two. The end of the telescopic end of the cylinder two is hinged to the connecting ear two.

[0011] As a further technical solution of this utility model, each of the driving mechanisms includes a pair of mounting seats 1 fixed on the inner wall of the frame. Each mounting seat 1 has a bearing seat 1 fixed on its upper end face. A rotating shaft 1 is rotatably arranged between the two bearing seats 1. A geared motor that works with the rotating shaft 1 is provided on the frame. Two pulleys 1 are fixedly sleeved on the outer surface of the rotating shaft 1. Two pairs of mounting seats 2 are symmetrically fixed on the lower end face of the frame. Each mounting seat 2 has a bearing seat 2 fixed on its lower end face. A rotating shaft 3 is rotatably arranged between each pair of bearing seats 2. A pulley 2 is fixedly sleeved on the outer surface of each rotating shaft 3. A synchronous belt is sleeved between the pulley 1 and the pulley 2. Two connecting seats are fixed on both sides of the frame. Each connecting seat is fixedly connected to the adjacent synchronous belt.

[0012] As a further technical solution of this utility model, guide rails are fixed on both sides of the chamber body, and a slider is slidably arranged on each guide rail. Two L-shaped connecting blocks are symmetrically fixed on the upper end face of the lifting frame, and the L-shaped connecting blocks are fixedly connected to the slider.

[0013] As a further technical solution of this utility model, two pairs of L-shaped support plates are symmetrically fixed on the upper end face of the frame, and a conveyor is fixed between each pair of L-shaped support plates.

[0014] As a further technical solution of this utility model, four guide plates are fixedly inclined on the upper surface of the hopper.

[0015] The beneficial effects of this utility model are: This application solution involves setting multiple trapezoidal reinforcing plates on the lower end face of an L-shaped support plate. When the L-shaped support plate supports small packaged products, multiple rollers support the trapezoidal reinforcing plates, thereby distributing the weight of the L-shaped support plate and the multiple small packaged products, and preventing the L-shaped support plate from bending and deforming downwards after supporting multiple small packaged products. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram showing the connection between the frame and the storage body of this utility model; Figure 4 This is a schematic diagram of the frame structure of this utility model; Figure 5 This is a schematic diagram of the external structure of the hopper body of this utility model; Figure 6 This is a schematic diagram of the internal structure of the hopper body of this utility model. Figure 1 ; Figure 7 This is a schematic diagram of the internal structure of the hopper body of this utility model. Figure 2 ; Figure 8 This is a schematic diagram showing the connection between the outer mounting plate and the guide rod of this utility model. Figure 9 This is a schematic diagram showing the connection between the L-shaped insert plate and the trapezoidal reinforcing plate of this utility model; Figure 10 This is a schematic diagram of the transverse slot of this utility model; Figure 11 This is a schematic diagram of the structure of the inner mounting plate of this utility model; Figure 12 This is a schematic diagram showing the connection between the roller 2 and the L-shaped insert plate of this utility model; Figure 13 This is a schematic diagram showing the connection between the lifting frame and the outer mounting plate 2 of this utility model; Figure 14 This is a schematic diagram showing the connection between the rotating shaft and the pulley of this utility model; Figure 15 This is a schematic diagram showing the connection between the rotating shaft three and the pulley two of this utility model.

[0017] In the diagram: 100, Frame; 101, Compartment; 102, L-shaped insert plate; 103, Horizontal slot; 104, Trapezoidal reinforcing plate; 105, Vertical slot; 106, Roller 1; 107, Outer mounting plate 1; 108, Guide rod 1; 109, Inner mounting plate 1; 110, Movable plate 1; 111, Cylinder 1; 112, Connecting ear 1; 113, Notch; 200, Roller support; 201, Roller 2; 202, Side through slot; 203, Roller 3; 300, Lifting frame; 301, Outer mounting plate 2; 302, Guide rod 2; 3 03. Movable plate two; 304. Insert shaft body; 305. Movable through slot; 306. Cylinder two; 307. Connecting ear two; 400. Mounting seat one; 401. Bearing seat one; 402. Rotating shaft one; 403. Gear motor; 404. Pulley one; 405. Mounting seat two; 406. Bearing seat two; 407. Rotating shaft three; 408. Pulley two; 409. Synchronous belt; 410. Connecting seat; 411. Guide rail; 412. Slider; 413. L-shaped connecting block; 500. L-shaped support plate; 501. Conveyor; 502. Guide plate. Detailed Implementation

[0018] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0019] Reference Figures 1-15A slow-descent device for bagging in a secondary packaging machine includes a frame 100, a chamber 101 fixedly disposed within the frame 100, L-shaped insert plates 102 movably passing through both sides of the chamber 101, and transverse slots 103 for use with the L-shaped insert plates 102 on both sides of the chamber 101. Multiple trapezoidal reinforcing plates 104 are fixed to the lower end face of the L-shaped insert plates 102. Multiple vertical slots 105 for use with the trapezoidal reinforcing plates 104 are provided on both sides of the chamber 101. A roller 106 for use with the trapezoidal reinforcing plate 104 is rotatably disposed on the inner wall of each vertical slot 105. A drive mechanism for use with the L-shaped insert plates 102 is disposed within the frame 100, and a shaft assembly for use with the chamber 101 is also disposed within the frame 100.

[0020] The frame 100 is fixedly connected to the secondary packaging machine base of the peripheral device, and the specific installation method is the existing technology.

[0021] The secondary packaging machine base is equipped with a bag-supporting component. When in use, the large packaging bag to be used is opened, with the opening of the large packaging bag facing upwards and located below the chamber 101.

[0022] Two pairs of L-shaped support plates 500 are symmetrically fixed on the upper end face of the frame 100, and a conveyor 501 is fixed between each pair of L-shaped support plates 500. The conveyor 501 is existing technology.

[0023] The small packaged products located in the external collection and packaging warehouse are continuously transported to the upper opening of the warehouse body 101 by the set conveyor 501. This part is the prior art.

[0024] Four guide plates 502 are fixed at an angle on the upper end face of the hopper body 101.

[0025] The small packaged products conveyed by the conveyor 501 are guided into the silo 101 by the guide plate 502.

[0026] In the initial state of use, the two L-shaped inserts 102 are close to each other. Small packaged products fall from the external collection bin into the bin 101 via the conveyor 501. The two L-shaped inserts 102 temporarily receive the falling small packaged products. During this process, the insert shaft assembly moves from the lower part of the bin 101 toward the L-shaped inserts 102. When the insert shaft assembly moves upward to a position close to the L-shaped inserts 102, the two L-shaped inserts 102 are activated by the drive mechanism. As the two L-shaped insert plates 102 move further apart, the small packaged products located on them will fall onto the insert shaft assembly. Then, the insert shaft assembly will gradually move downwards. When the insert shaft assembly moves downwards to a position close to the large packaging bag, it will cause the multiple small packaged products it is holding to fall into the large packaging bag. At this time, the two L-shaped insert plates 102 will move closer to each other again to receive the small packaged products conveyed by the conveyor 501. Then, the insert shaft assembly will move from the lower section of the hopper 101 toward the L-shaped insert plate 102, repeating the above operation.

[0027] By using the L-shaped insert plate 102 and the insert shaft assembly, small packaged products conveyed by the conveyor 501 are prevented from falling directly downwards, thus avoiding damage to the small packaged products and the falling off of the large packaged bags.

[0028] In other embodiments, when the insert shaft assembly receives the small packaged products and moves downward, the L-shaped insert plates 102 can be brought closer together as needed when the insert shaft assembly moves downward to the middle position of the hopper 101 to receive the small packaged products conveyed by the conveyor 501, thereby avoiding the insert shaft assembly from receiving too many small packaged products at a time.

[0029] The present application provides multiple trapezoidal reinforcing plates 104 on the lower end face of the L-shaped support plate 500. When the L-shaped support plate 500 supports small packaged products, multiple rollers 106 support the trapezoidal reinforcing plates 104, thereby distributing the weight of the L-shaped support plate 500 and the multiple small packaged products it supports, and preventing the L-shaped support plate 500 from bending and deforming downwards after supporting multiple small packaged products.

[0030] Furthermore, by using multiple rollers 106, the trapezoidal reinforcing plate 104 reduces the friction between the trapezoidal reinforcing plate 104 and the vertical slot 105 when it moves along with the L-shaped support plate 500.

[0031] The drive mechanism includes two outer mounting plates 107 fixed to the top of the frame 100. Two guide rods 108 are symmetrically fixed between the two outer mounting plates 107. Inner mounting plates 109 are fixed on both sides of the compartment 101. The guide rods 108 are fixedly inserted through the inner mounting plates 109. A movable plate 110 is movably arranged between each outer mounting plate 107 and the adjacent inner mounting plate 109. The guide rods 108 movably insert through the movable plate 110. One inner wall of the L-shaped insert plate 102 is fixedly connected to the side wall of the movable plate 110. Each outer mounting plate 107 is provided with a drive unit 1 that works in conjunction with the movable plate 110.

[0032] By cooperating with the outer mounting plate 107 and the inner mounting plate 109, the guide rod 108 is limited and fixed, which causes the movable plate 110 to move horizontally on the guide rod 108, thereby driving the L-shaped insert plate 102 to move.

[0033] Each drive unit includes a cylinder 111 fixed to the side wall of the outer mounting plate 107. The telescopic end of the cylinder 111 extends through the outer mounting plate 107. A connecting ear 112 is fixed on the side wall of the movable plate 110. The end of the telescopic end of the cylinder 111 is hinged to the connecting ear 112. A notch 113 is provided on the side wall of the L-shaped insert plate 102 to cooperate with the connecting ear 112.

[0034] When the telescopic end of cylinder 111 retracts, it will pull the movable plate 110 to move through the connecting ear 112, thereby driving the L-shaped insert plate 102 away from the chamber 101.

[0035] Both sides of the hopper body 101 are fixed with roller supports 200. Each roller support 200 has a roller 201 rotatably mounted on its inner wall. Each inner mounting plate 109 has multiple side through grooves 202 on one side. Each side through groove 202 has a roller 203 rotatably mounted in it.

[0036] The upper surface of roller 201 contacts the lower end face of L-shaped insert plate 102.

[0037] The lower surface of roller 3 203 contacts the upper surface of L-shaped insert 102.

[0038] By cooperating with rollers 201 and 203, the L-shaped insert plate 102 is guided to move horizontally, and the support points for the L-shaped insert plate 102 are increased to ensure the smooth operation of the L-shaped insert plate 102.

[0039] The insertion shaft assembly includes a lifting frame 300 movably sleeved outside the chamber body 101. Two outer mounting plates 301 are symmetrically fixed to the lower end face of the lifting frame 300. Two guide rods 302 are fixedly and through the two outer mounting plates 301. Two movable plates 303 are movably arranged between the two outer mounting plates 301. The guide rods 302 movably pass through the movable plates 303. Multiple insertion shaft bodies 304 are fixed on the side of the movable plate 303 near the chamber body 101. Multiple movable through slots 305 for use with the insertion shaft bodies 304 are opened on both sides of the chamber body 101. A drive unit 2 for use with the movable plate 303 is provided on the outer mounting plate 301. Two drive mechanisms 3 for use with the lifting frame 300 are provided on the frame 100.

[0040] The guide rod 302 is limited and fixed by the outer mounting plate 301, ensuring that the movable plate 303 can slide horizontally on the guide rod 302.

[0041] In the initial state, each insert shaft body 304 is inserted into the chamber 101, so as to receive small packaged products falling from the L-shaped insert plate 102 and conveyed by the conveyor 501. When the frame 100 moves down with the movable plate 2 303 and the insert shaft body 304 to the position near the large package below, the drive unit 2 drives the movable plate 2 303 and the insert shaft body 304 away from the chamber 101, so that the small packaged products on the insert shaft body 304 fall down into the large package. Then the drive unit 2 causes the movable plate 2 303 and the insert shaft body 304 to reset.

[0042] Each drive unit 2 includes a cylinder 2 306 fixed to the side wall of the outer mounting plate 2 301. The telescopic end of the cylinder 2 306 extends through the outer mounting plate 2 301. A connecting ear 2 307 is fixed on one side of the movable plate 2 303. The end of the telescopic end of the cylinder 2 306 is hinged to the connecting ear 2 307.

[0043] When the telescopic end of cylinder 2 306 retracts, it will drive the movable plate 2 303 and the insert shaft body 304 away from the chamber 101 through the connecting ear 2 307.

[0044] Each drive mechanism includes a pair of mounting seats 400 fixed to the inner wall of the frame 100. Each mounting seat 400 has a bearing seat 401 fixed to its upper end face. A rotating shaft 402 is rotatably arranged between the two bearing seats 401. A geared motor 403 that works with the rotating shaft 402 is provided on the frame 100. Two pulleys 404 are fixedly sleeved on the outer surface of the rotating shaft 402. Two pairs of mounting seats 405 are symmetrically fixed to the lower end face of the frame 100. Each mounting seat 405 has a bearing seat 406 fixed to its lower end face. A rotating shaft 407 is rotatably arranged between each pair of bearing seats 406. A pulley 408 is fixedly sleeved on the outer surface of each rotating shaft 407. A synchronous belt 409 is sleeved between the pulleys 404 and 408. Two connecting seats 410 are fixed to both sides of the frame 100. Each connecting seat 410 is fixedly connected to the adjacent synchronous belt 409.

[0045] When in use, when the geared motor 403 drives the rotating shaft 402 to rotate in the forward direction, it will drive the pulley 404, the timing belt 409 and the second pulley 408 to rotate in the forward direction together, thereby causing the timing belt 409 to drive the connecting seat 410 and the frame 100 to move upward.

[0046] When the geared motor 403 drives the rotating shaft 402 to rotate in the opposite direction, it will drive the connecting seat 410 and the frame 100 to move downward through the synchronous belt 409.

[0047] The geared motor 403 is equipped with a self-locking function, which is existing technology.

[0048] Guide rails 411 are fixed on both sides of the chamber 101, and sliders 412 are slidably mounted on each guide rail 411. Two L-shaped connecting blocks 413 are symmetrically fixed on the upper end face of the lifting frame 300, and the L-shaped connecting blocks 413 are fixedly connected to the sliders 412.

[0049] During the movement of the frame 100, the L-shaped connecting block 413 and the slider 412 will move together. Through the cooperation of the slider 412 and the guide rail 411, the frame 100 can move smoothly up and down.

[0050] In use, initially, the two L-shaped inserts 102 are close to each other. Small packaged products fall from the external collection bin into the bin 101 via the conveyor 501. The two L-shaped inserts 102 temporarily receive the falling small packaged products. During this process, the insert shaft assembly moves from the lower part of the bin 101 toward the L-shaped inserts 102. When the insert shaft assembly moves upward to a position close to the L-shaped inserts 102, the two L-shaped inserts 102 move away from each other under the action of the drive mechanism. At this time, the small packaged products on the two L-shaped inserts 102 fall onto the insert shaft assembly. The small packaged products are then slowly moved downwards by the insert shaft assembly. When the insert shaft assembly moves downwards to a position close to the large packaging bag, it causes the multiple small packaged products to fall into the large packaging bag. At this time, the two L-shaped insert plates 102 move closer to each other again to receive the small packaged products conveyed by the conveyor 501. Then, the insert shaft assembly moves from the lower part of the bin 101 toward the L-shaped insert plate 102, repeating the above operation. Through the cooperation of the L-shaped insert plate 102 and the insert shaft assembly, the small packaged products conveyed by the conveyor 501 are prevented from falling directly downwards, thus avoiding damage to the small packaged products and the large packaging bag falling off.

[0051] The above-disclosed embodiments are merely preferred embodiments of the present utility model. However, the embodiments of the present utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A slow-descent device for bagging in a secondary packaging machine, comprising a frame (100), wherein a chamber (101) is fixedly disposed within the frame (100), characterized in that, Both sides of the compartment (101) are provided with L-shaped insert plates (102). Both sides of the compartment (101) are provided with horizontal slots (103) for use with the L-shaped insert plates (102). Multiple trapezoidal reinforcing plates (104) are fixed on the lower end face of the L-shaped insert plates (102). Both sides of the compartment (101) are provided with multiple vertical slots (105) for use with the trapezoidal reinforcing plates (104). Each vertical slot (105) has a roller (106) for use with the trapezoidal reinforcing plate (104) rotatably mounted on its inner wall. A drive mechanism for use with the L-shaped insert plates (102) is provided in the frame (100). A shaft assembly for use with the compartment (101) is also provided in the frame (100).

2. The slow-descent device for bagging in a secondary packaging machine according to claim 1, characterized in that, The drive mechanism includes two outer mounting plates (107) fixed to the top of the frame (100). Two guide rods (108) are symmetrically fixed between the two outer mounting plates (107). Inner mounting plates (109) are fixed on both sides of the compartment (101). The guide rods (108) are fixed through the inner mounting plates (109). A movable plate (110) is movably arranged between each outer mounting plate (107) and the adjacent inner mounting plate (109). The guide rods (108) movably pass through the movable plate (110). The inner wall of one side of the L-shaped insert (102) is fixedly connected to the side wall of the movable plate (110). Each outer mounting plate (107) is provided with a drive unit that works with the movable plate (110).

3. The slow-descent device for bagging in a secondary packaging machine according to claim 2, characterized in that, Each of the drive units includes a cylinder (111) fixed to the side wall of the outer mounting plate (107). The telescopic end of the cylinder (111) extends through the outer mounting plate (107). A connecting ear (112) is fixed on the side wall of the movable plate (110). The end of the telescopic end of the cylinder (111) is hinged to the connecting ear (112). A notch (113) is provided on the side wall of the L-shaped insert plate (102) to cooperate with the connecting ear (112).

4. The slow-descent device for bagging in a secondary packaging machine according to claim 2, characterized in that, Both sides of the hopper (101) are fixed with roller supports (200), and a second roller (201) is rotatably installed on the inner wall of each roller support (200). Multiple side through slots (202) are opened on one side of each inner mounting plate (109), and a third roller (203) is rotatably installed in each side through slot (202).

5. The slow-descent device for bagging in a secondary packaging machine according to claim 1, characterized in that, The insert shaft assembly includes a lifting frame (300) movably sleeved outside the chamber body (101). Two outer mounting plates (301) are symmetrically fixed to the lower end face of the lifting frame (300). Two guide rods (302) are fixedly inserted between the two outer mounting plates (301). Two movable plates (303) are movably arranged between the two outer mounting plates (301). The guide rods (302) movably pass through the movable plates (303). Multiple insert shaft bodies (304) are fixed on the side of the movable plates (303) near the chamber body (101). Multiple movable through slots (305) for use with the insert shaft bodies (304) are opened on both sides of the chamber body (101). A drive unit (2) for use with the movable plates (303) is provided on the outer mounting plate (301). Two drive mechanisms (3) for use with the lifting frame (300) are provided on the frame (100).

6. The slow-descent device for bagging in a secondary packaging machine according to claim 5, characterized in that, Each of the drive units includes a cylinder (306) fixed to the side wall of the outer mounting plate (301). The telescopic end of the cylinder (306) extends through the outer mounting plate (301). A connecting ear (307) is fixed on one side of the movable plate (303). The end of the telescopic end of the cylinder (306) is hinged to the connecting ear (307).

7. The slow-descent device for bagging in a secondary packaging machine according to claim 5, characterized in that, Each of the aforementioned drive mechanisms includes a pair of mounting seats (400) fixed to the inner wall of the frame (100). Each mounting seat (400) has a bearing seat (401) fixed to its upper end face. A rotating shaft (402) is rotatably arranged between the two bearing seats (401). A geared motor (403) is provided on the frame (100) to cooperate with the rotating shaft (402). Two pulleys (404) are fixedly sleeved on the outer surface of the rotating shaft (402). Two pairs of mounting seats are symmetrically fixed to the lower end face of the frame (100). Two (405), each mounting base two (405) has a bearing seat two (406) fixed on its lower end face, and a rotating shaft three (407) is rotatably arranged between each pair of bearing seats two (406). A pulley two (408) is fixedly sleeved on the outer surface of each rotating shaft three (407). A synchronous belt (409) is sleeved between pulley one (404) and pulley two (408). Two connecting seats (410) are fixed on both sides of the frame (100), and each connecting seat (410) is fixedly connected to the adjacent synchronous belt (409).

8. The slow-descent device for bagging in a secondary packaging machine according to claim 5, characterized in that, The two sides of the chamber (101) are fixed with guide rails (411), and each guide rail (411) is slidably provided with a slider (412). The upper end face of the lifting frame (300) is symmetrically fixed with two L-shaped connecting blocks (413), and the L-shaped connecting blocks (413) are fixedly connected with the sliders (412).

9. The slow-descent device for bagging in a secondary packaging machine according to claim 1, characterized in that, The upper end face of the frame (100) is symmetrically fixed with two pairs of L-shaped support plates (500), and a conveyor (501) is fixed between each pair of L-shaped support plates (500).

10. The slow-descent device for bagging in a secondary packaging machine according to claim 1, characterized in that, The upper surface of the hopper (101) is fixed with four guide plates (502) at an incline.

Images