Load-carrying performance detection device and method for production of degradable packaging bag

Abstract

The invention discloses a load performance detection device and method for degradable packaging bag production, and the device comprises a support: the inner side of the support is provided with a power mechanism for vibration load detection, the bottom of the power mechanism is also provided with a connecting mechanism for vibration reset, and the bottom of the connecting mechanism is provided with an adjusting mechanism with an adjustable distance; through cooperative arrangement of the power mechanism, the connecting mechanism, the adjusting mechanism and the pushing mechanism, the effect of stably clamping and fixing the degradable packaging bag can be achieved, meanwhile, the clamping distance can be adjusted according to needs, then the packaging bag clamping device can adapt to packaging bags of different sizes, and the practicability is high. Meanwhile, adaptive height adjustment can be carried out according to packaging bags of different heights, the loading performance of the packaging bags in a static state can be directly detected, meanwhile, the loading performance of the packaging bags in a dynamic state can be detected, the advantage of detection in a dynamic state and a static state is achieved, and the effect of the detection state and the loading performance are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of load detection of degradable packaging bags, and in particular to a load performance detection device and method for producing degradable packaging bags. Background Art

[0002] Degradable packaging bags mainly include biodegradable plastic bags, photodegradable plastic bags, and other types of packaging bags made of degradable materials. These bags are widely used in supermarket shopping bags, roll-up fresh-keeping bags, ground films, and other scenarios. Degradable packaging bags made of different materials can complete degradation in different environments to meet environmental protection requirements. In the production process of degradable packaging bags, their load-bearing requirements are essential. Degradable packaging bags need to be tested and inspected for load-bearing performance after production to ensure that they meet the preset requirements. The load-bearing performance test can be completed through the detection device;

[0003] In the existing packaging bag production process, the load-bearing performance test of the packaging bag is sometimes directly ignored. Some packaging bags are directly tested for load-bearing performance by pulling. The test effect is poor and more objective and accurate test data cannot be obtained.

[0004] To address the above technical issues, a device and method for testing the load-bearing performance of packaging bags, such as the one disclosed in Publication No. CN114646544B, can perform repeatable load-bearing performance tests on a number of randomly selected packaging bags one by one, and the testing is simple and fast.

[0005] The above patent also has the following deficiencies: the prior art is unable to realize dual detection of static load-bearing performance and dynamic load-bearing performance during detection, and usually only detects the static load-bearing performance. However, since the packaging bags are relatively bumpy during transportation, the detection data of the static load-bearing performance alone is inaccurate, and it is impossible to know the dynamic load status of the packaging bag accurately. Therefore, the load-bearing detection effect is poor, and the maximum load value cannot be determined. Summary of the Invention

[0006] The purpose of the present invention is to provide a load performance detection device and method for the production of degradable packaging bags, which can achieve the advantages of dual load performance detection of static load detection and dynamic load detection, not only to improve the multi-directionality of detection, but also to accurately detect the actual load data, and can detect the maximum load value in the dynamic state, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a load-bearing performance detection device and method for the production of degradable packaging bags, comprising a bracket:

[0008] A power mechanism for vibration load detection is provided on the inner side of the bracket, and a connection mechanism for vibration reset is also provided on the bottom of the power mechanism;

[0009] The bottom of the connecting mechanism is provided with an adjustment mechanism with adjustable spacing, the back of the adjustment mechanism is provided with a clamping and fixing pushing mechanism, and one side of the bracket is provided with a weighting mechanism for progressively increasing weight;

[0010] The first electric push rod in the power mechanism is fixedly mounted on both ends of the top of the bracket;

[0011] The connecting mechanism is driven by a power mechanism to move up and down reciprocatingly, and the weight-adding mechanism is used to increase the weight of the packaging bag. The weight is increased step by step and load tests are performed according to different weights. Dynamic and static load-bearing performance test operations are performed on packaging bags containing different weights.

[0012] Exemplarily, a second connecting frame is fixedly mounted on the output end of the first electric push rod, connecting blocks are fixedly mounted on both ends of the back of the second connecting frame, and a back plate is fixedly mounted on the back end of the connecting block;

[0013] A first motor is fixedly installed on the back side of the back plate, an output shaft key of the first motor is connected to a disc, a connecting plate is fixedly installed at the center of the back side of the disc, a connecting rod is fixedly installed on the top of the surface of the connecting plate, and a rod sleeve is rotatably connected to the outer side of the connecting rod.

[0014] Exemplarily, the second connecting frame in the connecting mechanism is sleeved on the outside of the rod sleeve, and the connecting mechanism includes a first vertical plate, the first vertical plate is fixedly mounted on the top of the second connecting frame, the second vertical plate is fixedly mounted on the bottom of the second connecting frame, and the second mounting frame is bolted to the bottom of the second vertical plate;

[0015] A first spring and a vertical rod are fixedly installed at both ends of the top of the second mounting frame. The first spring is located outside the vertical rod. The top of the first spring is welded to the bottom of the second connecting frame. The second connecting frame slides outside the vertical rod.

[0016] Exemplarily, the adjustment mechanism includes a spacing moving component and an elastic component, the spacing moving component is arranged on the inner side of the second mounting bracket, the elastic component is arranged at the bottom of the spacing moving component, the second motor in the spacing moving component is fixedly mounted on one end of the second mounting bracket, the output shaft of the second motor is keyed to a forward and reverse threaded rod, and the outer side of the forward and reverse threaded rod is threadedly connected to a connecting seat;

[0017] The forward and reverse threaded rods are rotatably connected to the inner side wall of the second mounting frame, a sliding rod is fixedly installed on the top of the inner side wall of the second mounting frame, and the connecting seat is slidably connected to the outer side of the sliding rod.

[0018] Exemplarily, the mounting block in the elastic assembly is fixedly mounted on the bottom end of the connecting seat, the top and bottom surfaces of the mounting block are welded with a second spring, one end of the second spring is welded with a baffle, and the back of the baffle is fixedly mounted with a support rod;

[0019] A mounting plate is fixedly mounted on one end of the support rod, a first clamping plate is fixedly mounted on the inner side of the mounting plate, and a second clamping plate is fixedly mounted on the inner side of the mounting block.

[0020] Exemplarily, the second mounting bracket in the pushing mechanism is fixedly mounted on the back of the first mounting bracket, a support plate is fixedly mounted on the bottom of the second mounting bracket, and side plates are fixedly mounted on the bottoms of both sides of the support plate;

[0021] A second electric push rod is fixedly mounted on the surface of the support plate, a push plate is fixedly mounted on the output end of the second electric push rod, and cross bars are fixedly mounted on both ends of the back side of the push plate, and the cross bars are slidably connected to the side plates.

[0022] Exemplarily, the weighting mechanism includes a displacement component and a rotation component, wherein the displacement component is arranged on one side of the bracket, and the rotation component is arranged on the surface of the displacement component.

[0023] Exemplarily, the bottom plates in the displacement assembly are fixedly mounted on the bottoms of both sides of the bracket, a support plate is fixedly mounted on the top of one side of the bottom plate, and a third electric push rod is fixedly mounted on the surface of the support plate;

[0024] An electric slide is fixedly mounted on the output end of the third electric push rod, and limit rods are fixedly mounted on the top and bottom of the back of the electric slide, and the limit rods are slidably connected to the support plate.

[0025] Exemplarily, the carrier in the rotating assembly is fixedly mounted on the surface of the moving end of the electric slide, a third motor is fixedly mounted on the inner side of the carrier, the output shaft of the third motor is keyed to a rotating rod, and an electromagnetic suction cup is fixedly mounted on the bottom end of the rotating rod.

[0026] A method for testing load-bearing performance for the production of degradable packaging bags, comprising the following steps:

[0027] Step 1: Fix the packaging bag. First, adjust the required height according to the first electric push rod. At this time, the second motor drives the positive and negative threaded rods to rotate, causing the connecting seat to slide on the outside of the slide rod, thereby driving the clamping component at the bottom to move and move closer to the inside until the first clamping plate and the second clamping plate are located on the outside of the side of the degradable packaging bag. Then, the first clamping plate is pushed by the pushing mechanism to move and cooperate with the second clamping plate to complete the clamping and fixing of the packaging bag. Then, according to the above, it moves inward again, and the opening of the packaging bag is opened to wait for weight addition.

[0028] Step 2: Gradually increase the weight. Use the third motor to adjust the direction of the rotating rod and the electromagnetic suction cup to absorb the prepared metal block. Then, the electric slide moves to the preset position and rotates again to the desired position. When it reaches the inside of the packaging bag, the electromagnetic suction cup releases the metal block and slowly lowers it into the metal bag. Repeat this operation to increase the weight and observe and test the static load capacity of the packaging bag.

[0029] Step three, load vibration detection. After the static load detection, it switches to dynamic detection. The first motor drives the connecting plate to rotate through the disc. Based on the sliding adaptation of the rod sleeve and the second connecting frame, the second vertical plate and the first mounting frame can be repeatedly pushed and pulled, thereby driving the packaging bag under load to vibrate, and further detecting the load performance in the dynamic state.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention can achieve the effect of stably clamping and fixing the degradable packaging bags through the coordinated arrangement of the power mechanism, the connecting mechanism, the adjusting mechanism and the pushing mechanism. At the same time, the clamping spacing can be adjusted as required, so that it can adapt to packaging bags of different sizes. At the same time, the height can be adaptively adjusted according to packaging bags of different heights. It can directly realize the load-bearing performance test of the packaging bags under static conditions and the load-bearing performance test under dynamic conditions. It has the advantages of testing in both dynamic and static states to improve the effect of the testing state and the load-bearing performance. The coordination of the adjusting mechanism and the pushing mechanism can realize the clamping and fixing operation of the degradable packaging bags and realize the spacing adjustment during clamping. The coordination of the power mechanism and the connecting mechanism can not only adjust the required height position, but also perform up and down vibration detection by reciprocating push and pull.

[0032] 2. The present invention is equipped with a weighting mechanism, which can take and place iron load-bearing objects of calibrated weight. It can not only realize the gradual increase and decrease of weight operations, but also improve the efficiency of taking and placing during the detection process and the efficiency of load-bearing detection, so that the detection work can be carried out conveniently and quickly. The position is adjusted by moving forward and backward, and it can also move up and down for stable taking and placing of loads. The rotation method is used to take and place loads, so that they can be taken out and returned to their original place after placement.

[0033] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of the present invention;

[0035] Figure 2 Schematic diagram of the partial structure of the stent of the present invention;

[0036] Figure 3 Schematic diagram of the first spring structure of the present invention;

[0037] Figure 4 This is a schematic diagram of the rod sleeve structure of the present invention;

[0038] Figure 5 This is a schematic diagram of the first motor structure of the present invention;

[0039] Figure 6 This is a schematic diagram of the mounting structure of the present invention;

[0040] Figure 7 This is a schematic diagram of the threaded rod structure of the present invention;

[0041] Figure 8 Schematic diagram of the second spring structure of the present invention;

[0042] Figure 9 This is a schematic structural diagram of a second electric push rod according to the present invention;

[0043] Figure 10 This is a schematic diagram of the structure of the third electric push rod of the present invention.

[0044] In the figure: 1. bracket; 2. power mechanism; 21. first electric push rod; 22. first connecting frame; 23. connecting block; 24. back plate; 25. first motor; 26. disc; 27. connecting plate; 28. connecting rod; 29. ​​rod sleeve; 3. connecting mechanism; 31. second connecting frame; 32. first vertical plate; 33. second vertical plate; 34. first mounting frame; 35. first spring; 36. vertical rod; 4. adjusting mechanism; 41. second motor; 42. positive and negative threaded rod; 43. connecting seat; 44. sliding Rod; 45. Mounting block; 46. Mounting plate; 47. First clamping plate; 48. Support rod; 49. Second spring; 410. Second clamping plate; 5. Push mechanism; 51. Second mounting frame; 52. Support plate; 53. Second electric push rod; 54. Push plate; 55. Cross bar; 56. Side plate; 6. Weighting mechanism; 61. Bottom plate; 62. Support plate; 63. Third electric push rod; 64. Electric slide; 65. Limit rod; 66. Loading rack; 67. Third motor; 68. Rotating rod; 69. Electromagnetic suction cup. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] The present invention provides a load-bearing performance detection device and method for the production of degradable packaging bags, comprising a bracket 1:

[0047] A vibration load detection power mechanism 2 is provided on the inner side of the bracket 1, and a vibration reset connection mechanism 3 is also provided at the bottom of the power mechanism 2;

[0048] The bottom of the connecting mechanism 3 is provided with an adjusting mechanism 4 with adjustable spacing, and the back of the adjusting mechanism 4 is provided with a clamping and fixed pushing mechanism 5;

[0049] The first electric push rod 21 in the power mechanism 2 is fixedly mounted on both ends of the top of the bracket 1. The output end of the first electric push rod 21 is fixedly mounted with a first connecting frame 22. Both ends of the back of the first connecting frame 22 are fixedly mounted with connecting blocks 23. The back end of the connecting block 23 is fixedly mounted with a back plate 24.

[0050] The first electric push rod 21 can directly adjust the height position of the connected component below;

[0051] A first motor 25 is fixedly mounted on the back of the back plate 24. The output shaft of the first motor 25 is keyed to a disc 26. A connecting plate 27 is fixedly mounted at the center of the back of the disc 26. A connecting rod 28 is fixedly mounted on the top of the connecting plate 27. A rod sleeve 29 is rotatably connected to the outer side of the connecting rod 28.

[0052] The second connecting frame 31 in the connecting mechanism 3 is sleeved on the outside of the rod sleeve 29 .

[0053] The first motor 25 can realize dynamic detection through reciprocating motion.

[0054] Preferred:

[0055] like Figure 3 、 4 As shown in FIG5 , the connecting mechanism 3 includes a first vertical plate 32 , which is fixedly mounted on the top of the second connecting frame 31 , a second vertical plate 33 is fixedly mounted on the bottom of the second connecting frame 31 , and a first mounting frame 34 is bolted to the bottom of the second vertical plate 33 ;

[0056] In addition, there are two connection states between the second vertical plate 33 and the first mounting bracket 34:

[0057] The first type is the connection by bolt fixation as mentioned above;

[0058] The second type is that there is a gap between the two, with no contact or connection. Different methods can be selected according to the needs.

[0059] Based on the above two methods, dynamic detection of degradable packaging bags can be achieved.

[0060] A first spring 35 and a vertical rod 36 are fixedly installed at both ends of the top of the first mounting frame 34. The first spring 35 is located on the outside of the vertical rod 36. The top of the first spring 35 is welded to the bottom of the first connecting frame 22, and the first connecting frame 22 slides on the outside of the vertical rod 36.

[0061] It is used to realize elastic support and reset during dynamic detection, so as to achieve low-frequency, medium-frequency and high-frequency dynamic detection operations.

[0062] During dynamic testing, the degradable packaging is in the following state after clamping and adding weight: the first motor 25 directly drives the disc 26 to rotate, and the disc 26 directly drives the connecting plate 27 and the rod sleeve 29 connected to the connecting plate 27 through the connecting rod 28 to rotate together, and the rod sleeve 29 slides inside the second connecting frame 31. According to the rectangular state inside the second connecting frame 31, the second vertical plate 33 can push the first mounting frame 34 and the degradable packaging bag clamped and fixed at the bottom of the first mounting frame 34 to move downward together during clockwise rotation. At this time, the vertical rod 36 penetrates the first connecting frame 22 to slide and stretch the first spring 35.

[0063] During the continuous rotation, the first mounting frame 34 and the biodegradable packaging bag below and the iron block with the weight marked inside are driven to reciprocate up and down to shake or vibrate, so as to realize dynamic detection operation.

[0064] Dynamic detection of different frequencies is achieved according to the rotation speed.

[0065] Furthermore, the adjustment mechanism 4 includes a spacing moving component and an elastic component. The spacing moving component is arranged on the inner side of the first mounting bracket 34, and the elastic component is arranged on the bottom of the spacing moving component.

[0066] like Figure 7 and 8 As shown, the second motor 41 in the spacing moving assembly is fixedly mounted on one end of the first mounting bracket 34, the output shaft of the second motor 41 is keyed to a forward and reverse threaded rod 42, and the outer side of the forward and reverse threaded rod 42 is threadedly connected to a connecting seat 43;

[0067] It plays the role of adjusting the distance during the clamping process to adapt to different packaging bags.

[0068] The forward and reverse threaded rod 42 is rotatably connected to the inner wall of the first mounting bracket 34 . A sliding rod 44 is fixedly installed on the top of the inner wall of the first mounting bracket 34 . The connecting seat 43 is slidably connected to the outer side of the sliding rod 44 .

[0069] like Figure 7 and 8 As shown, the mounting block 45 in the elastic assembly is fixedly mounted on the bottom end of the connecting seat 43. The top and bottom surfaces of the mounting block 45 are welded with a second spring 49. One end of the second spring 49 is welded with a baffle, and a support rod 48 is fixedly mounted on the back of the baffle.

[0070] It realizes the effect of elastic reset and completes the clamping and fixing operation of the outer edge of the packaging bag by pushing and squeezing.

[0071] A mounting plate 46 is fixedly mounted on one end of the support rod 48 , a first clamping plate 47 is fixedly mounted on the inner side of the mounting plate 46 , and a second clamping plate 410 is fixedly mounted on the inner side of the mounting block 45 .

[0072] The clamping and fixing operation can be performed directly by being pushed.

[0073] Going a step further:

[0074] like Figure 9 As shown, the second mounting frame 51 in the pushing mechanism 5 is fixedly mounted on the back of the first mounting frame 34, a support plate 52 is fixedly mounted on the bottom of the second mounting frame 51, and side plates 56 are fixedly mounted on the bottoms of both sides of the support plate 52;

[0075] It plays a supporting role, facilitating the subsequent stable operation of the second electric push rod 53.

[0076] A second electric push rod 53 is fixedly mounted on the surface of the support plate 52 , a push plate 54 is fixedly mounted on the output end of the second electric push rod 53 , and a cross bar 55 is fixedly mounted on both ends of the back of the push plate 54 , and the cross bar 55 is slidably connected to the side plate 56 through it.

[0077] It can achieve clamping and fixing work by pushing, ensuring the stable operation of the degradable packaging bag during the inspection process.

[0078] When clamping and fixing:

[0079] First, the packaging bag is located directly below, and then the first electric push rod 21 pushes it downward to the outside of the packaging. At this time, when the second motor 41 drives the forward and reverse threaded rod 42 to rotate, and through the threaded connection relationship and the sliding limit of the slide rod 44, the two groups of connecting seats 43 move inward at the same time, and then indirectly drive the two groups of first clamping plates 47 and second clamping plates 410 to move inward together, until each group of first clamping plates 47 and second clamping plates 410 are located outside the outer edge of the packaging bag, and the above-mentioned spacing adjustment is completed;

[0080] At the same time, the second electric push rod 53 pushes the push plate 54 to move, and the push plate 54 pushes the mounting plate 46, the first clamping plate 47 and the support rod 48 to move together until the first clamping plate 47 contacts the outer edge of the packaging bag and cooperates with the second clamping plate 410 to complete the clamping and fixing operation;

[0081] When the fixation is completed, the first electric push rod 21 can be retracted and pulled upward to make the packaging bag suspended. Then, during the clamping state, the connecting seat 43 is driven to move inward again, thereby expanding the range of the packaging bag feed port, and then gradually increasing the weight.

[0082] Finally, a weighting mechanism 6 is provided on one side of the bracket 1 . The weighting mechanism 6 includes a displacement component and a rotation component. The displacement component is provided on one side of the bracket 1 , and the rotation component is provided on the surface of the displacement component.

[0083] like Figure 10 As shown, the bottom plates 61 in the displacement assembly are fixedly mounted on the bottoms of both sides of the bracket 1, and a support plate 62 is fixedly mounted on the top of one side of the bottom plate 61, and a third electric push rod 63 is fixedly mounted on the surface of the support plate 62;

[0084] An electric slide 64 is fixedly mounted on the output end of the third electric push rod 63 . Limit rods 65 are fixedly mounted on the top and bottom of the back of the electric slide 64 . The limit rods 65 are slidably connected to the support plate 62 .

[0085] It realizes the function of assisting in adjusting the position and height of taking and placing weighted objects, and can adaptively cooperate and perform weight-adding operations on packaging bags that are clamped and suspended in the air.

[0086] like Figure 10 As shown, the carrier 66 in the rotating assembly is fixedly mounted on the surface of the moving end of the electric slide 64, and a third motor 67 is fixedly mounted on the inner side of the carrier 66. The output shaft key of the third motor 67 is connected to a rotating rod 68, and an electromagnetic suction cup 69 is fixedly mounted on the bottom end of the rotating rod 68.

[0087] The weighted objects can be picked up and placed directly by rotating the machine. In addition, the picking and placing operation can be completed by magnetic attraction.

[0088] When adding weight:

[0089] As shown in the figure, the state is at the mouth of the degradable packaging bag. At this time, the electromagnetic suction cup 69 has magnetically attracted the iron counterweight, and then the electric slide 64 will indirectly drive it to be placed inside the packaging bag. At this time, the magnetic state is released, that is, the electromagnetic suction cup 69 is powered off. After that, it moves up above the packaging bag position and the third motor 67 works. It will drive the rotating rod 68 and the electromagnetic suction cup 69 to rotate to the position where the counterweight is placed for adsorption. The rotation is clockwise, and the maximum rotation is 180°. Then, the required counterweight is magnetically attracted again and then rotated and placed in the packaging bag according to the above method to increase the required weight.

[0090] When taking it out, just reverse the above steps to magnetically attract the weight in the bag or the weight that has fallen into the sponge pool and silicone pool at the bottom to the desired position.

[0091] A method for testing load-bearing performance for the production of degradable packaging bags, comprising the following steps:

[0092] Step 1: Fix the packaging bag. First, adjust the required height according to the first electric push rod 21. At this time, the second motor 41 drives the forward and reverse threaded rod 42 to rotate, causing the connecting seat 43 to slide on the outside of the slide rod 44, thereby driving the clamping component at the bottom to move inward until the first clamping plate 47 and the second clamping plate 410 are located on the outside of the side of the degradable packaging bag. Then, the first clamping plate 47 is pushed by the pushing mechanism 5 to move and cooperate with the second clamping plate 410 to complete the clamping and fixing of the packaging bag. Then, according to the above, it moves inward again, and the opening of the packaging bag is opened to wait for weight increase.

[0093] Step 2: Gradually increase the weight. Use the third motor 67 to adjust the direction of the rotating rod 68 and the electromagnetic suction cup 69 to absorb the prepared metal block. Then, the electric slide 64 moves to the preset position and rotates again to the desired position. When it extends into the packaging bag, the electromagnetic suction cup 69 releases the suction of the metal block and slowly lowers it into the metal bag. Repeat this operation to increase the weight and observe and test the static load capacity of the packaging bag.

[0094] Step three, load vibration detection. After the static load detection, it switches to dynamic detection. The first motor 25 drives the connecting plate 27 to rotate through the disc 26. Based on the sliding adaptation of the rod sleeve 29 and the second connecting frame 31, the second vertical plate 33 and the first mounting frame 34 can be repeatedly pushed and pulled, thereby driving the packaging bag under load to vibrate, and further detecting the load performance in the dynamic state.

[0095] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A load-bearing performance testing device for the production of degradable packaging bags, characterized in that: Includes bracket (1): A power mechanism (2) for vibration load detection is arranged on the inner side of the bracket (1), and a connection mechanism (3) for vibration reset is also arranged at the bottom of the power mechanism (2); The bottom of the connection mechanism (3) is provided with an adjustment mechanism (4) with adjustable spacing, the back of the adjustment mechanism (4) is provided with a clamping and fixing pushing mechanism (5), and one side of the bracket (1) is provided with a weighting mechanism (6) for increasing weight in a progressive manner; The first electric push rod (21) in the power mechanism (2) is fixedly mounted on both ends of the top of the bracket (1); The power mechanism (2) drives the connecting mechanism (3) to move up and down in a reciprocating manner, and the weight of the packaging bag is increased by the weight-adding mechanism (6). The weight is increased in a step-by-step manner and load-bearing tests are performed according to different weights, thereby forming dynamic and static load-bearing performance test operations for packaging bags containing different weights.

2. The load-bearing performance testing device for the production of degradable packaging bags according to claim 1, characterized in that: A second connecting frame (22) is fixedly mounted on the output end of the first electric push rod (21), connecting blocks (23) are fixedly mounted on both ends of the back of the second connecting frame (22), and a back plate (24) is fixedly mounted on the back end of the connecting block (23); A first motor (25) is fixedly mounted on the back side of the back plate (24); an output shaft of the first motor (25) is key-connected to a disc (26); a connecting plate (27) is fixedly mounted at the center of the back side of the disc (26); a connecting rod (28) is fixedly mounted on the top of the surface of the connecting plate (27); and a rod sleeve (29) is rotatably connected to the outer side of the connecting rod (28).

3. The load-bearing performance testing device for the production of degradable packaging bags according to claim 1, characterized in that: The second connecting frame (31) in the connecting mechanism (3) is sleeved on the outside of the rod sleeve (29), and the connecting mechanism (3) comprises a first vertical plate (32), the first vertical plate (32) is fixedly mounted on the top of the second connecting frame (31), a second vertical plate (33) is fixedly mounted on the bottom of the second connecting frame (31), and a second mounting frame (34) is bolted to the bottom of the second vertical plate (33); A first spring (35) and a vertical rod (36) are fixedly mounted at both ends of the top of the second mounting frame (34); the first spring (35) is located outside the vertical rod (36); the top end of the first spring (35) is welded to the bottom of the second connecting frame (22); and the second connecting frame (22) slides on the outside of the vertical rod (36).

4. The load-bearing performance testing device for the production of degradable packaging bags according to claim 3, characterized in that: The adjustment mechanism (4) comprises a spacing moving component and an elastic component, wherein the spacing moving component is arranged on the inner side of the second mounting frame (34), and the elastic component is arranged on the bottom of the spacing moving component. The second motor (41) in the spacing moving component is fixedly mounted on one end of the second mounting frame (34), and the output shaft of the second motor (41) is keyed to a forward and reverse threaded rod (42), and the outer side of the forward and reverse threaded rod (42) is threadedly connected to a connecting seat (43); The forward and reverse threaded rod (42) is rotatably connected to the inner side wall of the second mounting frame (34); a sliding rod (44) is fixedly mounted on the top of the inner side wall of the second mounting frame (34); and the connecting seat (43) is slidably connected to the outer side of the sliding rod (44).

5. The load-bearing performance testing device for the production of degradable packaging bags according to claim 4, characterized in that: The mounting block (45) in the elastic component is fixedly mounted on the bottom end of the connecting seat (43); a second spring (49) is welded to the top and bottom of the surface of the mounting block (45); a baffle is welded to one end of the second spring (49); a support rod (48) is fixedly mounted on the back of the baffle; A mounting plate (46) is fixedly mounted on one end of the support rod (48), a first clamping plate (47) is fixedly mounted on the inner side of the mounting plate (46), and a second clamping plate (410) is fixedly mounted on the inner side of the mounting block (45).

6. The load-bearing performance testing device for the production of degradable packaging bags according to claim 1, characterized in that: The second mounting frame (51) in the pushing mechanism (5) is fixedly mounted on the back of the second mounting frame (34), a support plate (52) is fixedly mounted on the bottom of the second mounting frame (51), and side plates (56) are fixedly mounted on the bottoms of both sides of the support plate (52); A second electric push rod (53) is fixedly mounted on the surface of the support plate (52), a push plate (54) is fixedly mounted on the output end of the second electric push rod (53), cross bars (55) are fixedly mounted on both ends of the back of the push plate (54), and the cross bars (55) are slidably connected to the side plates (56) in a through-type manner.

7. The load-bearing performance testing device for the production of degradable packaging bags according to claim 1, characterized in that: The weighting mechanism (6) comprises a displacement component and a rotation component, the displacement component is arranged on one side of the bracket (1), and the rotation component is arranged on the surface of the displacement component.

8. The load-bearing performance testing device for the production of degradable packaging bags according to claim 7, characterized in that: The bottom plate (61) in the displacement assembly is fixedly mounted on the bottom of both sides of the bracket (1), a support plate (62) is fixedly mounted on the top of the bottom plate (61) on one side, and a third electric push rod (63) is fixedly mounted on the surface of the support plate (62); An electric slide (64) is fixedly mounted on the output end of the third electric push rod (63), and a limit rod (65) is fixedly mounted on the top and bottom of the back of the electric slide (64), and the limit rod (65) is slidably connected to the support plate (62) in a penetrating manner.

9. The load-bearing performance testing device for the production of degradable packaging bags according to claim 8, characterized in that: The carrier (66) in the rotating assembly is fixedly mounted on the surface of the moving end of the electric slide (64); a third motor (67) is fixedly mounted on the inner side of the carrier (66); an output shaft of the third motor (67) is keyed to a rotating rod (68); an electromagnetic suction cup (69) is fixedly mounted on the bottom end of the rotating rod (68).

10. A method for testing load-bearing performance for production of degradable packaging bags, applied to a device for testing load-bearing performance for production of degradable packaging bags as claimed in any one of claims 1 to 9, characterized in that: The steps include: Step 1: The packaging bag is fixed. The required height is first adjusted according to the first electric push rod (21). At this time, the second motor (41) drives the positive and negative threaded rods (42) to rotate, causing the connecting seat (43) to slide on the outside of the slide rod (44), thereby driving the clamping component at the bottom to move and move inward until the first clamping plate (47) and the second clamping plate (410) are located on the outside of the side of the degradable packaging bag. Then, the first clamping plate (47) is pushed by the pushing mechanism (5) to move and cooperate with the second clamping plate (410) to complete the clamping and fixing of the packaging bag. Then, according to the above, it moves inward again, and the opening of the packaging bag is opened to wait for weight increase. Step 2: gradually increase the weight, use the third motor (67) to adjust the direction of the rotating rod (68) and the electromagnetic suction cup (69), absorb the pre-prepared metal block, and then move the electric slide (64) to the preset position and rotate to the required position again, and then release the electromagnetic suction cup (69) from the metal block when it extends to the inside of the packaging bag, and slowly lower it into the metal bag. Repeat this operation to increase the weight, observe and test the static load-bearing capacity of the packaging bag; Step three, load vibration detection, after the static load detection, it turns to dynamic detection, the first motor (25) drives the connecting plate (27) to rotate through the disc (26), based on the sliding adaptation of the rod sleeve (29) and the second connecting frame (31), the second vertical plate (33) and the second mounting frame (34) can be repeatedly pushed and pulled, thereby driving the packaging bag under the load to vibrate, and further detecting the load performance in the dynamic state.

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