Tensile film wear resistance testing device

Abstract

The utility model discloses a stretching film wear resistance testing device which comprises a placing table, a lifting table used for placing a stretching film is arranged on the placing table through an air cylinder, two fixing plates are fixedly arranged on the outer wall of the placing table, a reciprocating lead screw is arranged between the two fixing plates in a rotating mode, and a lead screw sleeve is arranged on the outer wall of the reciprocating lead screw through a limiting mechanism. A connecting frame is arranged on the lead screw sleeve through an inserting mechanism, an upper jacking groove is formed in the outer wall of the connecting frame, a limiting block is arranged in the upper jacking groove through an upper jacking mechanism, a limiting plate is arranged on one of the fixing plates, a strip-shaped opening corresponding to the limiting block is formed in the limiting plate, a mounting plate is mounted on the connecting frame, and a clamping groove is formed in the mounting plate. And a friction block is mounted at the bottom of the mounting plate. According to the utility model, the magnet on the mounting plate is adsorbed with the iron sheet on the friction block, so that the friction block can be conveniently and quickly replaced when stretching films with different materials or roughness are tested, and diversified test requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of stretch film testing, in particular to a device for testing the abrasion resistance of stretch film. Background Art

[0002] The device for testing the abrasion resistance of stretch film is to ensure product quality. Through testing, the ability of the stretch film to resist wear in actual use can be understood, ensuring that it meets relevant quality standards and providing reliable products for consumers. For example, if the stretch film is used to package fragile items, poor abrasion resistance may cause it to break during transportation, affecting the safety of goods.

[0003] In the prior art, there is a problem that the disassembly between the test component and the moving component in the device for testing the abrasion resistance of stretch film is inconvenient. The connection structure between the test component and the moving component is designed relatively complex. For example, too many screws, nuts or other fastening parts are used, which not only increases the disassembly steps, but also easily causes the loss or confusion of parts during disassembly. There are also devices that adopt an integrated casting connection method, partially integrating the test component and the moving component during the manufacturing process. Although this method provides high strength and stability in the initial stage, once disassembly for maintenance or component replacement is required, it is almost impossible to achieve non-destructive disassembly, greatly increasing the maintenance cost and difficulty. To address the above problems, a device for testing the abrasion resistance of stretch film is proposed here. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and a device for testing the abrasion resistance of stretch film is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A device for testing the abrasion resistance of stretch film, including a placement table, on which a lifting table for placing stretch film is provided through a cylinder. Two fixing plates are fixedly arranged on the outer wall of the placement table. A reciprocating lead screw is rotatably arranged between the two fixing plates. A lead screw sleeve is arranged on the outer wall of the reciprocating lead screw through a limiting mechanism. An adapter frame is arranged on the lead screw sleeve through an insertion mechanism. An upper top groove is arranged on the outer wall of the adapter frame. A limiting block is arranged in the upper top groove through an upper top mechanism. A limiting plate is arranged on one of the fixing plates. A strip-shaped opening corresponding to the limiting block is opened on the limiting plate. An installation plate is installed on the adapter frame. A friction block is installed at the bottom of the installation plate.

[0007] Preferably, the limiting mechanism includes a limiting rod arranged between the two fixing plates, and the limiting rod slidably penetrates through the lead screw sleeve.

[0008] Preferably, the insertion mechanism includes an insertion rod provided on the outer wall of the lead screw sleeve, and the connection frame is provided with a slot corresponding to the insertion rod.

[0009] Preferably, the upward pushing mechanism includes a spring provided in the upward pushing groove, and both ends of the spring are elastically connected to the outer wall of the limit block and the inner wall of the upward pushing groove respectively.

[0010] Preferably, a driving motor is provided on one of the fixing plates, and the output shaft of the driving motor is fixedly connected to one end of the reciprocating lead screw.

[0011] Preferably, a magnet is installed on the mounting plate, and an iron sheet corresponding to the magnet is installed on the friction block.

[0012] Advantages of the present utility model:

[0013] 1. Convenient for replacing the friction block: The magnet on the mounting plate adsorbs the iron sheet on the friction block, so that when testing stretch films of different materials or roughness, the friction block can be replaced conveniently and quickly to meet diverse test requirements.

[0014] 2. Facilitate disassembly and storage: By pressing the limit block to disengage it from the strip-shaped opening and then horizontally moving the connection frame, the disassembly of components such as the mounting plate can be achieved, facilitating the storage and sorting of the device or the overall replacement, improving the flexibility and convenience of the device in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a stretch film abrasion resistance testing device proposed by the present utility model;

[0016] Figure 2 is Figure 1 a schematic enlarged view of the structure at A of

[0017] Figure 3 is a schematic vertical sectional view of the connection frame.

[0018] In the figure: 1 placing table, 2 fixing plate, 3 reciprocating lead screw, 4 driving motor, 5 mounting plate, 6 friction block, 7 lead screw sleeve, 8 limit rod, 9 connection frame, 10 limit plate, 11 strip-shaped opening, 12 limit block, 13 slot, 14 upward pushing groove, 15 spring, 16 lifting table. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Refer to Figures 1-3, A tensile film abrasion resistance testing device, including a placement table 1. On the placement table 1, there is a lifting table 16 for placing the tensile film through a cylinder. There is also a fixing component for fixing the tensile film on the lifting table 16. This fixing component is a conventional component and is not drawn in this solution. It can be referred to the publicly available prior art. The cylinder therein can lift the lifting table 16, thereby lifting the tensile film to contact with the friction block 6.

[0021] On the outer wall of the placement table 1, two fixed plates 2 are fixedly arranged. Between the two fixed plates 2, a reciprocating lead screw 3 is rotatably arranged. On the outer wall of the reciprocating lead screw 3, a lead screw sleeve 7 is arranged through a limiting mechanism. On the lead screw sleeve 7, a connecting frame 9 is arranged through an insertion mechanism. On the outer wall of the connecting frame 9, there is an upper top groove 14. In the upper top groove 14, a limiting block 12 is arranged through an upper top mechanism. On one of the fixed plates 2, there is a limiting plate 10. On the limiting plate 10, a strip-shaped opening 11 corresponding to the limiting block 12 is opened. An installation plate 5 is installed on the connecting frame 9. A friction block 6 is installed at the bottom of the installation plate 5.

[0022] The limiting mechanism includes a limiting rod 8 arranged between the two fixed plates 2. The limiting rod 8 slidably penetrates through the lead screw sleeve 7. It is arranged parallel to the reciprocating lead screw 3 between the two fixed plates 2 and slidably penetrates through the lead screw sleeve 7. During the movement of the lead screw sleeve 7 along with the reciprocating lead screw 3, the limiting rod 8 effectively limits the rotational freedom of the lead screw sleeve 7, ensuring that it can only move along a straight line direction.

[0023] The insertion mechanism includes an insertion rod arranged on the outer wall of the lead screw sleeve 7. A slot 13 corresponding to the insertion rod is arranged on the connecting frame 9. This insertion mechanism is simple and practical in design, enabling the connecting frame 9 to be quickly and conveniently connected and disassembled with the lead screw sleeve 7.

[0024] The upper top mechanism includes a spring 15 arranged in the upper top groove 14. The two ends of the spring 15 are elastically connected to the outer wall of the limiting block 12 and the inner wall of the upper top groove 14 respectively. The spring 15 can provide a continuous and stable elastic force for the limiting block 12, enabling the limiting block 12 to closely cooperate with the strip-shaped opening 11 on the limiting plate 10.

[0025] On one of the fixed plates 2, a driving motor 4 is arranged. The output shaft of the driving motor 4 is fixedly connected to one end of the reciprocating lead screw 3. The output shaft of the driving motor 4 is tightly connected to one end of the reciprocating lead screw 3 through a coupling, and can provide power for the reciprocating lead screw 3.

[0026] An electromagnet is installed on the installation plate 5, and an iron sheet corresponding to the electromagnet is installed on the friction block 6. The electromagnet installed on the installation plate 5 has a strong magnetic force and can firmly adsorb the iron sheet on the friction block 6, facilitating the installation and replacement of the friction block 6. When it is necessary to test friction blocks 6 with different materials or roughnesses, the operator can easily replace the friction block 6.

[0027] When the utility model is in use, the stretch film to be tested is fixed on the lifting table 16 through the fixing component. Then, the air cylinder is started, and the air cylinder pushes the lifting table 16 to rise, so that the stretch film is lifted to contact with the friction block 6. Next, the driving motor 4 is started, and the output shaft of the driving motor 4 drives the reciprocating lead screw 3 to rotate. Since the limiting rod 8 restricts the rotational freedom of the lead screw sleeve 7, the lead screw sleeve 7 can only perform a linear reciprocating motion along the reciprocating lead screw 3. When the lead screw sleeve 7 moves, the connecting frame 9 is driven to move together through the insertion mechanism of the insertion rod and the insertion slot 13. During the movement of the connecting frame 9, the spring 15 in the upper top groove 14 pushes the limiting block 12, so that the limiting block 12 is always in close fit with the strip-shaped opening 11 on the limiting plate 10, ensuring the stability and accuracy of the movement of the connecting frame 9. Finally, with the reciprocating movement of the connecting frame 9, the friction block 6 installed on the mounting plate 5 continuously rubs back and forth on the surface of the stretch film, thereby realizing the test of the wear resistance of the stretch film.

[0028] If stretch films of different materials or roughness are to be tested, different friction blocks 6 can be replaced. Due to the adsorption effect of the magnet on the mounting plate 5 and the iron sheet on the friction block 6, the replacement process is convenient and fast.

[0029] In this solution, press the limiting block 12 in the strip-shaped opening 11, the limiting block 12 presses down the spring 15 into the upper top groove 14 and disengages from the strip-shaped opening 11, and then horizontally move the connecting frame 9 to drive components such as the mounting plate 5 to realize the disassembly operation, so as to carry out storage and sorting or overall replacement, etc.

[0030] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the utility model.

Claims

1. A tensile film abrasion resistance testing device, comprising a placement table (1), characterized in that, On the placing table (1), there is a lifting table (16) for placing stretch film through a cylinder. Two fixing plates (2) are fixedly arranged on the outer wall of the placing table (1). A reciprocating lead screw (3) is rotatably arranged between the two fixing plates (2). A lead screw sleeve (7) is arranged on the outer wall of the reciprocating lead screw (3) through a limiting mechanism. An adapter frame (9) is arranged on the lead screw sleeve (7) through an insertion mechanism. An upward pushing groove (14) is arranged on the outer wall of the adapter frame (9). A limiting block (12) is arranged in the upward pushing groove (14) through an upward pushing mechanism. A limiting plate (10) is arranged on one of the fixing plates (2). A strip-shaped opening (11) corresponding to the limiting block (12) is formed on the limiting plate (10). An installation plate (5) is installed on the adapter frame (9). A friction block (6) is installed at the bottom of the installation plate (5).

2. The wear resistance testing device for stretch film according to claim 1, characterized in that, The limiting mechanism includes a limiting rod (8) arranged between the two fixing plates (2), and the limiting rod (8) slidably penetrates through the lead screw sleeve (7).

3. The abrasion resistance testing device for stretch film according to claim 2, wherein The insertion mechanism includes an insertion rod arranged on the outer wall of the lead screw sleeve (7), and a slot (13) corresponding to the insertion rod is arranged on the adapter frame (9).

4. The tensile film abrasion resistance testing device according to claim 3, wherein, The upward pushing mechanism includes a spring (15) arranged in the upward pushing groove (14), and two ends of the spring (15) are elastically connected to the outer wall of the limiting block (12) and the inner wall of the upward pushing groove (14) respectively.

5. The tensile film abrasion resistance testing device according to claim 4, characterized in that, A driving motor (4) is arranged on one of the fixing plates (2), and the output shaft of the driving motor (4) is fixedly connected to one end of the reciprocating lead screw (3).

6. The stretch film abrasion resistance testing device according to claim 5, characterized in that, A magnet is installed on the installation plate (5), and an iron sheet corresponding to the magnet is installed on the friction block (6).

Images