Packaging material testing device

Abstract

The utility model discloses a packaging material testing device, and relates to the technical field of packaging material production. The top end of the box body is connected with a workbench, the top end of the workbench is provided with a through groove, a guide plate is installed in the box body, the side wall of the box body is provided with a discharge port, the fixing structure is installed on the surface of the workbench and comprises a connecting block, the side wall of the connecting block is connected with a fixing block, and a screw rod and a guide column are arranged in the fixing block. The screw and the bottom end of the guide column are connected with a fixing plate, and the surface of the guide column is sleeved with a spring. The graduated scale is arranged and located in the front end direction of the connecting block on the right side of the workbench, the moving distance of the connecting block on the right side can be conveniently measured in the test process, and therefore the accuracy of garbage bag tension detection is improved, the guide plate is in a slope shape, the bottom end of the guide plate is connected with the discharging opening, and the detected garbage bag can be directly thrown into the through groove; and the air is guided to the discharge port by the guide plate and then is collected in a centralized manner.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging material production, and specifically relates to a packaging material test device. Background Technique

[0002] Packaging materials refer to materials used for manufacturing packaging containers, packaging decoration, packaging printing, packaging transportation, etc. to meet the packaging requirements of products. It includes main packaging materials such as metals, plastics, glass, ceramics, paper, bamboo, wild fungi, natural fibers, chemical fibers, composite materials, etc., and also includes auxiliary materials such as binding tapes, decoration, and printing materials. After the production of some packaging materials, it is necessary to randomly select samples for tensile tests. For example, for plastic packaging bags, it is necessary to detect the flexibility of plastic packaging bags. However, there are certain problems with the existing tensile test devices for packaging material production. When conducting tensile tests on two different groups of plastic packaging bags, it is impossible to clearly observe which group of plastic packaging bags has better tensile performance, and it is not convenient to directly compare the test results, and the test results are not accurate enough.

[0003] Chinese Patent with Publication No. CN213544254U discloses a packaging material test device. By placing the bottom ends of two groups of plastic packaging bags between two groups of clamping plates and limit plates, then holding and rotating the rotating handle, and then hanging the handle ends of the plastic packaging bags on the connecting rings. After the clamping plates move backward to a certain position, the plastic packaging bags are fixed by anti-sliding blocks and limit plates. Then, control the hydraulic rod to drive the moving plate to move upward, and the moving plate pulls the plastic packaging bags through the connecting rings. However, hanging the packaging bags on the connecting rings can only detect the tensile force at one point of the bag itself, and the detected accuracy is not comprehensive enough.

[0004] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0005] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a packaging material test device to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is:

[0007] A packaging material testing device, comprising: a box body, a workbench is connected to the top end thereof, a through groove is opened on the top end of the workbench, a guide plate is installed inside the box body, a discharge port is opened on the side wall of the box body, a fixing structure is installed on the surface of the workbench, the fixing structure includes a connecting block, a fixing block is connected to the side wall of the connecting block, a screw rod and a guide post are arranged inside the fixing block, a fixing plate is connected to the bottom ends of the screw rod and the guide post, a spring is sleeved on the surface of the guide post, a moving structure is installed inside the workbench, the moving structure includes a reciprocating lead screw, a worm gear is installed on the surface of the reciprocating lead screw, a worm is connected to the bottom end of the worm gear, and the worm is connected to a rotating shaft.

[0008] Optionally, there are two connecting blocks in total, which are respectively located on the left and right sides of the workbench surface. The connecting blocks are in an "L" shape, and the left and right sides of the workbench are mirror-symmetrically distributed.

[0009] Optionally, through holes are opened at the lower middle parts of the connecting blocks. An extension block is arranged at the bottom end of the connecting block located on the right side of the workbench surface, and the extension block is connected to the reciprocating lead screw.

[0010] Optionally, inner cavities are opened on the left and right sides inside the fixing block, and the screw rod penetrates through the middle of the fixing block and is threadedly connected to the fixing block.

[0011] Optionally, there are two guide posts in total, which are respectively located in the inner cavities opened in the fixing block. The guide posts are slidably connected to the inner cavities. The bottom end of the spring is fixedly connected to the bottom inner wall of the inner cavity, and the top end is connected to the surface of the top end of the guide post.

[0012] Optionally, two grooves are opened on the workbench surface. The reciprocating lead screw is located in the grooves. The rotating shaft penetrates through the workbench and is rotatably connected to the inner wall of the workbench. The left end of the reciprocating lead screw is connected to a worm gear. A worm is sleeved on the surface of the rotating shaft, and the worm gear is threadedly connected to the worm.

[0013] Optionally, a scale is installed on the top surface of the workbench, and the scale is located in the front direction of the connecting block on the right side of the workbench.

[0014] Optionally, the guide plate is in a slope shape and is connected to the discharge port at the bottom end.

[0015] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below at the same time:

[0016] 1. By opening through holes at the lower middle parts of the connecting blocks, before fixing the garbage bag, by passing the two ends of the garbage bag through the through holes and pulling the two ends of the garbage bag, the surface of the middle part of the garbage bag is adjusted, so as to ensure the flatness of the garbage bag surface and avoid wrinkles on the garbage bag surface from affecting the test results;

[0017] 2. By setting a scale ruler, which is located at the front end direction of the connecting block on the right side of the workbench, it is convenient to measure the moving distance of the right connecting block during the test, thereby improving the accuracy of the garbage bag tensile force detection. The guide plate is in a slope shape, and its bottom end is connected to the discharge port. After the test, the garbage bag can be directly thrown into the through groove and guided by the guide plate to the discharge port, and then collected centrally.

[0018] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0019] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the attached

[0020] In the drawings:

[0021] Figure 1 is the overall structural schematic diagram;

[0022] Figure 2 is the front view cross-sectional structural schematic diagram;

[0023] Figure 3 is the side view cross-sectional structural schematic diagram;

[0024] Figure 4 is Figure 3 the enlarged structural schematic diagram at A in

[0025] Figure 5 is the cross-sectional structural schematic diagram of the fixed block.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] 1. Box body; 2. Workbench; 3. Connecting block; 4. Through groove; 5. Rotating shaft; 6. Guide plate; 7. Discharge port; 8. Screw rod; 9. Fixed block; 10. Fixed plate; 11. Reciprocating lead screw; 12. Worm gear; 13. Worm; 14. Guide post; 15. Spring.

[0028] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Specific Embodiment

[0029] Now, the present utility model will be further described in detail with reference to the accompanying drawings.

[0030] Please refer to Figures 1-5As shown in the figure, in this embodiment, a packaging material testing device is provided, which includes a box body 1, a workbench 2 is connected to the top end, a through groove 4 is opened at the top end of the workbench 2, and the tested packaging bag can directly enter the interior of the box body 1 through the through groove 4 and then be guided to the discharge port 7 by a guide plate 6 installed inside the box body 1. A fixing structure is installed on the surface of the workbench 2. The fixing structure includes a connecting block 3. A fixing block 9 is connected to the side wall of the connecting block 3. A screw rod 8 and a guide post 14 are arranged inside the fixing block 9. The screw rod 8 and the guide post 14 are connected to a fixing plate 10 at the bottom end. The screw rod 8 inside the fixing block is used to adjust the up and down position of the fixing plate 10. By rotating the screw rod 8, the fixing plate 10 can be raised or lowered, and the packaging bag is fixedly clamped by the fixing plate 10. A spring 15 is sleeved on the surface of the guide post 14, and the spring 15 can provide a certain buffering and resetting function. A moving structure is installed inside the workbench 2. The moving structure includes a reciprocating lead screw 11. A worm gear 12 is installed on the surface of the reciprocating lead screw 11. A worm 13 is connected to the bottom end of the worm gear 12. The worm 13 is connected to a rotating shaft 5. The combination of the worm gear 12 and the worm 13 is used to transmit power and change the direction of motion. The worm 13 inputs power through the rotating shaft 5 to drive the worm gear 12 to rotate, and then drives the reciprocating lead screw 11 to move.

[0031] In this embodiment, there are two connecting blocks 3 in total, which are respectively located on the left and right sides of the surface of the workbench 2. The connecting blocks 3 are in an "L" shape, and the left and right sides of the workbench 2 are mirror-symmetrically distributed. Through holes are opened at the lower middle parts of the connecting blocks 3. Before fixing the garbage bag, the two ends of the garbage bag can be respectively passed through the through holes, which is convenient for stretching the garbage bag, so that the surface of the garbage bag can be ensured to be flat after being fixed. An extension block is provided at the bottom end of the connecting block 3 located on the right side of the surface of the workbench 2, and this extension block is connected to the reciprocating lead screw 11, so that the connecting block 3 on the right side can move under the action of the reciprocating lead screw 11. Inner cavities are opened on the left and right sides inside the fixing block 9. The screw rod 8 penetrates through the middle of the fixing block 9 and is threadedly connected to the fixing block 9. When the screw rod 8 is rotated, the fixing plate 10 can be pushed to realize the adjustment of the position. There are two guide posts 14 in total, which are respectively located in the inner cavities opened in the fixing block 9. The guide posts 14 are slidably connected to the inner cavities, ensuring that when the screw rod 8 drives the components to move, they can move stably along the vertical direction without deviation or shaking. The bottom end of the spring 15 is fixedly connected to the bottom inner wall of the inner cavity, and the top end is connected to the surface of the top end of the guide post 14. The spring 15 plays a role of buffering and assisting in resetting. When the guide post 14 is subjected to a downward pressure, the spring 15 will be stretched, and when the pressure disappears, the spring 15 will help the guide post 14 return to the initial position.

[0032] During use, place both ends of the garbage bag on the surfaces of the connecting blocks 3 on the left and right sides of the workbench 2 respectively. Rotate the screw rod 8 to drive the fixed plate 10 to move downward until it presses against the garbage bag. Before fixing the garbage bag, pass both ends of the garbage bag through the through holes and pull them to adjust the middle surface of the garbage bag, ensuring the flatness of the garbage bag surface and avoiding wrinkles on the garbage bag surface that may affect the test results.

[0033] In this embodiment, two grooves are provided on the surface of the workbench 2, and the reciprocating lead screw 11 is located in the grooves, enabling it to operate stably in the grooves without affecting the flatness of the surface of the workbench 2 and other operations. The rotating shaft 5 penetrates the workbench 2 and is rotatably connected to the inner wall of the workbench 2. The left end of the reciprocating lead screw 11 is connected to a worm gear 12, and a worm 13 is sleeved on the surface of the rotating shaft 5. The worm gear 12 is threadedly connected to the worm 13. When the rotating shaft 5 rotates, the worm 13 drives the worm gear 12 to rotate, thereby driving the reciprocating lead screw 11 to move. A scale is installed on the top surface of the workbench 2, and the scale is located in the front direction of the connecting block 3 on the right side of the workbench 2, facilitating the measurement of the moving distance of the connecting block 3 on the right side during the test, thereby improving the accuracy of the tensile force detection of the garbage bag. The guide plate 6 is in a slope shape, and the bottom end is connected to the discharge port 7. After the garbage bag is detected, it can be directly thrown into the through groove 4 and guided to the discharge port 7 by the guide plate 6, and then collected centrally.

[0034] After the garbage bag is fixed by the fixed plate 10, rotate the rotating shaft 5. The rotating shaft 5 drives the worm 13 to rotate, and the worm 13 drives the worm gear 12 to rotate, thereby driving the reciprocating lead screw 11 to rotate, causing the connecting block 3 on the right side of the surface of the workbench 2 to move to the right through the reciprocating lead screw 11, thereby realizing the tensile force detection of the garbage bag.

[0035] Working principle:

[0036] First, place both ends of the garbage bag to be detected on the surfaces of the connecting blocks 3 on the left and right sides of the workbench 2 respectively. Rotate the screw rod 8 to push the fixed plate 10 downward until it presses against the garbage bag for fixation. Before fixation, pass both ends of the garbage bag through the through holes of the connecting blocks 3 and pull them to adjust the flatness of the middle surface of the garbage bag, avoiding wrinkles that may affect the test results. Then, rotate the rotating shaft 5. The rotating shaft 5 drives the worm 13 to rotate. Since the worm 13 is threadedly connected to the worm gear 12, the rotation of the worm 13 drives the worm gear 12 to rotate. The worm gear 12 is connected to the reciprocating lead screw 11, and the rotation of the worm gear 12 drives the reciprocating lead screw 11 to rotate. Since the extension block at the bottom end of the connecting block 3 on the right side of the workbench 2 is connected to the reciprocating lead screw 11, and the reciprocating lead screw 11 is located in the groove on the surface of the workbench 2, when the reciprocating lead screw 11 rotates, it will drive the connecting block 3 on the right side to move to the right;

[0037] In this process, the moving distance of the right connecting block 3 can be measured through the scale on the top surface of the workbench 2 in the front direction of the right connecting block 3, so as to accurately detect the tensile force that the garbage bag can bear;

[0038] After the detection is completed, the garbage bag is directly thrown into the through groove 4, and the garbage bag will slide down along the inclined guide plate 6 until it is discharged from the discharge port 7 for centralized collection.

[0039] Through the coordinated action of each component, the entire work process realizes the fixation, tensile force detection, and post-detection processing and collection of the garbage bag.

[0040] The present utility model is not limited to the above embodiments. Any person should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.

Claims

1. A packaging material testing device, characterized in that: include: A box body (1), the top of the box body (1) is connected to a workbench (2), the top of the workbench (2) is provided with a through slot (4), a guide plate (6) is installed inside the box body (1), and a discharge port (7) is provided on a side wall of the box body (1); A fixing structure, which is installed on the surface of the workbench (2), the fixing structure comprises a connecting block (3), the side wall of the connecting block (3) is connected to a fixing block (9), a screw (8) and a guide column (14) are arranged inside the fixing block (9), a fixing plate (10) is connected to the bottom ends of the screw (8) and the guide column (14), and a spring (15) is sleeved on the surface of the guide column (14); A movable structure is installed in the workbench (2), the movable structure comprising a reciprocating screw (11), a worm wheel (12) is installed on the surface of the reciprocating screw (11), a worm (13) is connected to the bottom end of the worm wheel (12), and the worm (13) is connected to a rotating shaft (5).

2. A packaging material testing device according to claim 1, characterized in that: There are two connecting blocks (3) in total, which are respectively located on the left and right sides of the surface of the workbench (2); the connecting blocks (3) are in an "L" shape, and the workbenches (2) on the left and right sides are distributed in a mirror image.

3. A packaging material testing device according to claim 2, characterized in that: The middle and lower ends of the connection blocks (3) are provided with through holes, and the bottom end of the connection blocks (3) located on the right side of the surface of the workbench (2) is provided with an extension block, which is connected to the reciprocating screw rod (11).

4. A packaging material testing device according to claim 1, characterized in that: The fixing block (9) has inner cavities on both the left and right sides. The screw rod (8) passes through the middle of the fixing block (9) and is threadedly connected to the fixing block (9).

5. A packaging material testing device according to claim 4, characterized in that: There are two guide posts (14) respectively located in the inner cavity opened by the fixed block (9). The guide posts (14) are slidably connected to the inner cavity. The bottom end of the spring (15) is fixedly connected to the inner wall of the bottom of the inner cavity, and the top end is connected to the top surface of the guide post (14).

6. A packaging material testing device according to claim 1, characterized in that: The surface of the workbench (2) is provided with two grooves, the reciprocating screw (11) is located in the grooves, the rotating shaft (5) passes through the workbench (2) and is rotatably connected to the inner wall of the workbench (2), the left end of the reciprocating screw (11) is connected to a worm wheel (12), the surface of the rotating shaft (5) is sleeved with a worm (13), and the worm wheel (12) is threadedly connected to the worm wheel (13).

7. A packaging material testing device according to claim 1, characterized in that: A scale is installed on the top surface of the workbench (2), and the scale is located at the front end direction of the connecting block (3) on the right side of the workbench (2).

8. A packaging material testing device according to claim 1, characterized in that: The guide plate (6) is sloped, and the bottom end is connected to the discharge port (7).

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