Strength detection device for plastic production

Abstract

The utility model provides a strength detection device for plastic production, which relates to the technical field of plastic production and comprises a base, four vertical sliding rods are symmetrically and fixedly connected to the top of the base, and the top ends of the four vertical sliding rods are jointly and fixedly connected with a top plate; a first electric cylinder is fixedly connected to the top plate in a penetrating mode, an upper clamping component is installed at the telescopic end of the first electric cylinder, and a lower clamping component is installed at the top of the base. Under the mutual cooperation of the movable clamping assembly and the fixed clamping assembly, a mounting frame in the movable clamping assembly can slide along a transverse sliding rod through stretching and retracting of a third electric cylinder, the distance between the movable clamping assembly and the fixed clamping assembly can be adjusted, plastic plates with different widths can be adapted, a second electric cylinder drives a driving frame to move, and the plastic plates with different widths can be clamped. The clamping blocks transversely slide along the transverse moving rods and clamp the plastic plates through the cooperation of the guide chutes and the guide columns, so that the clamping requirements of the plastic plates with different widths can be met, and the tensile strength of the plastic plates with different widths can be tested.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic production, and in particular to a strength testing device for plastic production. Background Technology

[0002] In the plastics production industry, the tensile strength of plastic sheets is one of the key indicators for measuring their quality, and the tensile strength of plastic sheets needs to be accurately tested using professional testing equipment.

[0003] In the prior art, utility model patent with publication number CN221840845U discloses a device for testing the tensile strength of plastic sheets, including a detector housing. A guide rod and a lead screw are provided on the detector housing. An upper crossbeam is provided at the upper end of the guide rod and the lead screw. A bottom crossbeam is provided on the detector housing. A middle crossbeam is provided on the guide rod and the lead screw. The guide rod slides through the middle crossbeam, and the lead screw is threaded and passes through the middle crossbeam. Jaws are provided on both the bottom and middle crossbeams. A detachable clamp is provided inside the jaws. By providing a detachable clamp, different sizes of clamps can be replaced according to different shapes of plastic sheets. Furthermore, the clamp is connected to the device through the jaws. The jaws are slidably connected to an inclined jaw clamping plate. Moving the jaws up and down allows for the closing and opening of the jaws, making assembly and disassembly very convenient.

[0004] In the prior art, when testing the tensile strength of plastic sheets, the clamps used to hold and fix the plastic sheets are usually of a fixed size. If it is necessary to test plastic sheets of different widths, it is usually necessary to disassemble the original clamps and then reinstall new clamps. This operation is very cumbersome and cannot meet the clamping and testing needs of plastic sheets of different widths. In the prior art, when performing tensile testing on plastic sheets, it is difficult for operators to visually see the length of the stretched plastic sheet. Therefore, it is necessary to provide a strength testing device for plastic production to solve the above technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a strength testing device for plastic production.

[0006] This utility model provides a strength testing device for plastic production, comprising a base, four vertical sliding rods symmetrically fixedly connected to the top of the base, and a top plate fixedly connected to the top ends of the four vertical sliding rods; a first electric cylinder is fixedly connected through the top plate, an upper clamping component is installed at the telescopic end of the first electric cylinder, and a lower clamping component is installed at the top of the base; the upper clamping component includes a movable clamping assembly, a fixed clamping assembly, a third electric cylinder, a fixed frame, and a horizontal sliding rod, the fixed frame is fixedly installed at the telescopic end of the first electric cylinder, both ends of the horizontal sliding rod are fixedly connected to the inner sidewall of the fixed frame, the movable clamping assembly and the fixed clamping assembly are both installed on the fixed frame, and the third electric cylinder is installed between the movable clamping assembly and the fixed clamping assembly; a positioning measuring component is provided on one side of the upper clamping component, the positioning measuring component including a measuring ruler vertically slidably connected to the vertical sliding rod.

[0007] Preferably, the moving clamping assembly includes a mounting frame, which is slidably sleeved on the outside of a horizontal slide bar. Two horizontal slide bars are symmetrically arranged. A second electric cylinder is fixedly connected to the upper part of the mounting frame. The telescopic end of the second electric cylinder extends into the inner side of the mounting frame and is fixedly connected to a drive frame. A horizontal moving rod is fixedly connected to the lower part of the mounting frame. Two symmetrically arranged clamping blocks are slidably connected to the horizontal moving rod. A guide post is fixedly connected to the top of each clamping block. Two symmetrically arranged guide grooves are opened through the lower part of the drive frame. The guide grooves correspond one-to-one with the guide posts, and the guide posts extend into the corresponding guide grooves.

[0008] Preferably, the structure of the fixed clamping assembly is the same as that of the movable clamping assembly, and the mounting bracket in the fixed clamping assembly is fixedly sleeved on the outside of the horizontal slide bar.

[0009] Preferably, each of the clamping blocks has a protrusion fixedly connected to its inner sidewall, and the inner sidewall of the clamping block is provided with anti-slip texture.

[0010] Preferably, the lower clamping component has the same structure as the upper clamping component, the lower clamping component and the upper clamping component are symmetrically arranged, and the fixing frame in the lower clamping component is fixedly connected to the top of the base.

[0011] Preferably, the positioning and measuring component includes a sliding block, which is slidably sleeved on two vertical sliding rods. A vertical threaded rod is longitudinally threaded through the sliding block, the bottom end of the vertical threaded rod is fixedly connected to the top of the base, and the top end of the vertical threaded rod passes through the top plate and is fixedly connected to a handle.

[0012] Preferably, a measuring ruler and a pointer are fixedly connected to one side of the sliding block, and the measuring ruler is provided with scale lines.

[0013] Compared with related technologies, the strength testing device for plastic production provided by this utility model has the following advantages:

[0014] In this invention, with the cooperation of the moving clamping component and the fixed clamping component, the extension and retraction of the third electric cylinder allows the mounting bracket in the moving clamping component to slide along the horizontal slide bar, adjusting the distance between the moving clamping component and the fixed clamping component to accommodate plastic plates of different widths. The second electric cylinder drives the drive frame to move, and through the cooperation of the guide groove and the guide post, the clamping block slides laterally along the horizontal sliding bar and clamps the plastic plate. The protrusions support the plastic plate, and the anti-slip texture increases friction, preventing the plastic plate from sliding during clamping and improving clamping stability. This achieves stable clamping of the plastic plate while matching the clamping needs of plastic plates of different widths, thereby enabling tensile strength testing of plastic plates of different widths without disassembling or replacing the clamps, making it more convenient and flexible to use.

[0015] The positioning and measuring components are set up. By turning the handle, the vertical threaded rod is rotated, causing the sliding block to rise and fall along the vertical sliding rod. The height of the measuring scale and pointer is adjusted. Before testing, the pointer is aligned with the top surface of the plastic sheet. During the stretching process, the distance the top surface of the plastic sheet moves can be read directly through the scale line, which can more intuitively reflect the stretching length of the plastic sheet and is convenient for operators to check. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of the strength testing device for plastic production provided by this utility model;

[0017] Figure 2 This is another perspective schematic diagram of the strength testing device for plastic production in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the upper clamping component in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the moving clamping component in this utility model;

[0020] Figure 5 This is a schematic diagram of the positioning and measuring component in this utility model.

[0021] The following components are labeled in the diagram: 1. Base; 2. Lower clamping component; 3. Vertical slide bar; 4. Upper clamping component; 5. Top plate; 6. First electric cylinder; 7. Positioning and measuring component; 701. Sliding block; 702. Measuring ruler; 703. Pointer; 704. Handle; 705. Vertical threaded rod; 706. Scale line; 8. Moving clamping assembly; 801. Mounting bracket; 802. Drive bracket; 803. Second electric cylinder; 804. Clamping block; 8041. Protrusion; 8042. Anti-slip texture; 805. Guide post; 806. Horizontal movement rod; 807. Guide groove; 9. Fixed clamping assembly; 10. Third electric cylinder; 11. Fixed bracket; 12. Horizontal slide bar. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example 1

[0024] Please refer to the following: Figures 1 to 4 A strength testing device for plastic production includes a base 1. Four vertical sliding rods 3 are symmetrically fixedly connected to the top of the base 1, and a top plate 5 is fixedly connected to the top of the four vertical sliding rods 3. A first electric cylinder 6 is fixedly connected through the top plate 5. An upper clamping component 4 is installed at the telescopic end of the first electric cylinder 6, and a lower clamping component 2 is installed at the top of the base 1. The upper clamping component 4 includes a movable clamping assembly 8, a fixed clamping assembly 9, a third electric cylinder 10, a fixing frame 11, and a horizontal sliding rod 12. The fixing frame 11 is fixedly installed at the telescopic end of the first electric cylinder 6, and both ends of the horizontal sliding rod 12 are fixedly connected to the inner sidewall of the fixing frame 11. The movable clamping assembly 8 and the fixed clamping assembly 9 are both installed on the fixing frame 11, and the third electric cylinder 10 is installed between the movable clamping assembly 8 and the fixed clamping assembly 9. A positioning measuring component 7 is provided on one side of the upper clamping component 4. The positioning measuring component 7 includes a measuring ruler 702 that is vertically slidably connected to the vertical sliding rods 3.

[0025] Furthermore, the moving clamping assembly 8 includes a mounting frame 801, which is slidably sleeved on the outside of the horizontal slide bar 12. Two horizontal slide bars 12 are symmetrically arranged. A second electric cylinder 803 is fixedly connected to the upper part of the mounting frame 801. The telescopic end of the second electric cylinder 803 extends into the inner side of the mounting frame 801 and is fixedly connected to a drive frame 802. A horizontal moving rod 806 is fixedly connected to the lower part of the mounting frame 801. Two symmetrically arranged clamping blocks 804 are slidably connected to the horizontal moving rod 806. A guide post 805 is fixedly connected to the top of the clamping block 804. Two symmetrically arranged guide grooves 807 are opened through the lower part of the drive frame 802. The guide grooves 807 and guide posts 805 are arranged one-to-one, and the guide posts 805 extend into the corresponding guide grooves 807.

[0026] Furthermore, the structure of the fixed clamping component 9 is the same as that of the movable clamping component 8, and the mounting bracket 801 in the fixed clamping component 9 is fixedly sleeved on the outside of the horizontal slide bar 12.

[0027] Furthermore, each of the inner walls of the clamping block 804 has a protrusion 8041 fixedly connected to it, and the inner wall of the clamping block 804 has anti-slip texture 8042.

[0028] Furthermore, the lower clamping component 2 has the same structure as the upper clamping component 4, and the lower clamping component 2 and the upper clamping component 4 are arranged symmetrically. The fixing frame 11 in the lower clamping component 2 is fixedly connected to the top of the base 1.

[0029] In the above, the base 1 serves as a supporting foundation and forms a frame structure with the top plate 5 through four vertical sliding rods 3, providing stable mechanical support for the detection device. Through the telescopic movement of the first electric cylinder 6, the upper clamping component 4 can be moved up and down to achieve the stretching action of the plastic plate. The lower clamping component 2 is fixed to the top of the base 1 and cooperates with the upper clamping component 4 to form an upper and lower clamping structure, which is used to fix the top and bottom of the plastic plate.

[0030] In the above, the mounting bracket 801 of the movable clamping assembly 8 can slide along the horizontal slide bar 12. Driven by the extension and retraction of the third electric cylinder 10, the movable clamping assembly 8 moves laterally relative to the fixed clamping assembly 9, thereby adjusting the distance between the two to accommodate plastic sheets of different widths. The second electric cylinder 803 is installed on the upper part of the mounting bracket 801. Its extension and retraction end drives the drive frame 802 to move up and down. The guide groove 807 of the drive frame 802 cooperates with the guide post 805 at the top of the clamping block 804. When the drive frame 802 moves, the guide post 805 slides along the guide groove 807, forcing the two clamping blocks 804 to move towards or away from each other along the horizontal movement bar 806, thereby clamping or releasing the plastic sheet. The fixed clamping assembly 9 has the same structure as the movable clamping assembly 8, but its mounting bracket 801 is fixed to the horizontal slide bar 12 and only serves as a fixed end for support.

[0031] In the above, the protrusion 8041 on the inner side of the clamping block 804 is used to support the plastic plate and provide a stable force point. The anti-slip texture 8042 increases the friction between the clamping block 804 and the surface of the plastic plate, prevents the plastic plate from sliding during the test, ensures the stability of the clamping, and avoids errors in the test data due to loose clamping.

[0032] In the above, the lower clamping component 2 and the upper clamping component 4 are symmetrical in structure and fixed to the base 1, forming a symmetrical clamping structure, which ensures that the tensile force is transmitted more evenly when testing the plastic sheet.

[0033] Example 2

[0034] For further details, please refer to [link / reference]. Figures 1 to 5Based on Embodiment 1, the positioning and measuring component 7 includes a sliding block 701, which is slidably mounted on two vertical sliding rods 3. A vertical threaded rod 705 is longitudinally threaded through the sliding block 701. The bottom end of the vertical threaded rod 705 is fixedly connected to the top of the base 1, and the top end of the vertical threaded rod 705 passes through the top plate 5 and is fixedly connected to a handle 704.

[0035] Furthermore, a measuring ruler 702 and a pointer 703 are fixedly connected to one side of the sliding block 701, and a scale line 706 is provided on the measuring ruler 702.

[0036] Furthermore, the first electric cylinder 6, the second electric cylinder 803, and the third electric cylinder 10 are all connected to an external control switch via wires.

[0037] In the above, the positioning and measuring component 7 is sleeved on the vertical slide rod 3 via the sliding block 701, and can slide up and down along the vertical slide rod 3. The vertical threaded rod 705 is threadedly connected to the sliding block 701. When the handle 704 is turned, the vertical threaded rod 705 rotates, and drives the sliding block 701 to rise and fall through the threaded transmission, thereby adjusting the height of the measuring scale 702 and the pointer 703.

[0038] In the above process, before testing, the pointer 703 is aligned with the top surface of the plastic plate by adjusting the sliding block 701. At this time, the pointer 703 corresponds to the zero mark 706 of the measuring ruler 702. During the stretching process, the upper clamping component 4 moves upward, the plastic plate is stretched, and its top surface rises with the stretching displacement. The change in the position of the top surface of the plastic plate relative to the mark 706 directly reflects the stretching length of the plastic plate. The operator can obtain the stretching data in real time by reading the scale value.

[0039] In the above, the first electric cylinder 6, the second electric cylinder 803, and the third electric cylinder 10 are all connected to an external control switch via wires. The operator can adjust the start / stop, extension / retraction direction, and stroke of each electric cylinder through the control switch.

[0040] The working principle of the strength testing device for plastic production provided by this utility model is as follows:

[0041] When performing tensile strength testing on a rectangular plastic sheet, the distance between the movable clamping component 8 and the fixed clamping component 9 in the lower clamping component 2 and the upper clamping component 4 is adjusted according to the required width of the plastic sheet to be tested. The third electric cylinder 10 is activated, and its telescopic end extends and retracts, causing the mounting bracket 801 in the movable clamping component 8 to slide along the horizontal slide bar 12. This allows the movable clamping component 8 to move closer to or further away from the fixed clamping component 9, adjusting the distance between them. The distance is adjusted until it matches the width of the plastic sheet, and then stopped. The lower part of the plastic sheet is then placed in the clamps of the movable clamping component 8 and the fixed clamping component 9 in the lower clamping component 2. The upper part of the plastic sheet is placed between the clamping blocks 804 and supported by the protrusions 8041, and the second electric cylinder 803 is activated, which extends the telescopic end of the second electric cylinder 803 and drives the drive frame 802 to move. Under the guidance of the guide groove 807, the guide post 805 moves in the guide groove 807. The guide post 805 drives the clamping blocks 804 to slide laterally along the transverse rod 806, so that the two clamping blocks 804 move closer to each other to clamp and fix the plastic sheet. The anti-slip texture 8042 increases the friction when the clamping blocks 804 contact the plastic sheet, making the clamping blocks 804 clamp and fix the plastic sheet more firmly.

[0042] After the plastic sheet is clamped and fixed, rotating the handle 704 drives the vertical threaded rod 705 to rotate. With the threaded connection between the vertical threaded rod 705 and the sliding block 701, the rotation of the vertical threaded rod 705 causes the sliding block 701 to slide along the vertical sliding rod 3. The sliding block 701 drives the measuring scale 702 and the pointer 703 to rise and fall synchronously until the pointer 703 is adjusted to the same height as the top surface of the plastic sheet. The pointer 703 is at the zero mark of the scale line 706, and the top surface of the plastic sheet at this point corresponds to the scale line 706. At the zero mark of scale 6, the tensile strength of the plastic sheet is tested. The first electric cylinder 6 is activated, and the telescopic end of the first electric cylinder 6 retracts, causing the upper clamping component 4 to move upward, thereby stretching the plastic sheet being tested. As the pulling force of the first electric cylinder 6 increases, the plastic sheet is gradually stretched. As the plastic sheet is stretched, the scale value corresponding to the top surface of the plastic sheet at scale line 706 is observed, which reflects the stretching length of the plastic sheet. The test continues until the plastic sheet breaks, thus completing the tensile strength test of the plastic sheet.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A strength testing device for plastic production, characterized in that, Includes a base (1), and four vertical sliding rods (3) are symmetrically fixedly connected to the top of the base (1), and a top plate (5) is fixedly connected to the top of the four vertical sliding rods (3); A first electric cylinder (6) is fixedly connected through the top plate (5). An upper clamping component (4) is installed on the telescopic end of the first electric cylinder (6). A lower clamping component (2) is installed on the top of the base (1). The upper clamping component (4) includes a movable clamping assembly (8), a fixed clamping assembly (9), a third electric cylinder (10), a fixed frame (11), and a horizontal slide bar (12). The fixed frame (11) is fixedly installed on the telescopic end of the first electric cylinder (6). Both ends of the horizontal slide bar (12) are fixedly connected to the inner sidewall of the fixed frame (11). The movable clamping assembly (8) and the fixed clamping assembly (9) are both installed on the fixed frame (11). The third electric cylinder (10) is installed between the movable clamping assembly (8) and the fixed clamping assembly (9). A positioning measuring component (7) is provided on one side of the upper clamping component (4), and the positioning measuring component (7) includes a measuring ruler (702) that is vertically slidably connected to the vertical slide rod (3).

2. The strength testing device for plastic production according to claim 1, characterized in that, The moving clamping assembly (8) includes a mounting frame (801), which is slidably sleeved on the outside of the horizontal slide bar (12). There are two horizontal slide bars (12) symmetrically arranged. A second electric cylinder (803) is fixedly connected to the upper part of the mounting frame (801). The telescopic end of the second electric cylinder (803) extends into the inner side of the mounting frame (801) and is fixedly connected to a drive frame (802). A horizontal moving rod (806) is fixedly connected to the lower part of the mounting frame (801). Two symmetrically arranged clamping blocks (804) are slidably connected to the horizontal moving rod (806). A guide post (805) is fixedly connected to the top of the clamping block (804). Two symmetrically arranged guide grooves (807) are opened through the lower part of the drive frame (802). The guide grooves (807) and guide posts (805) are arranged one-to-one. The guide posts (805) extend into the corresponding guide grooves (807).

3. The strength testing device for plastic production according to claim 2, characterized in that, The structure of the fixed clamping assembly (9) is the same as that of the moving clamping assembly (8), and the mounting bracket (801) in the fixed clamping assembly (9) is fixedly sleeved on the outside of the horizontal slide bar (12).

4. The strength testing device for plastic production according to claim 2, characterized in that, Each clamping block (804) has a protrusion (8041) fixedly connected to its inner sidewall, and anti-slip texture (8042) is provided on the inner sidewall of the clamping block (804).

5. The strength testing device for plastic production according to claim 4, characterized in that, The lower clamping component (2) has the same structure as the upper clamping component (4). The lower clamping component (2) and the upper clamping component (4) are arranged symmetrically. The fixing frame (11) in the lower clamping component (2) is fixedly connected to the top of the base (1).

6. The strength testing device for plastic production according to claim 1, characterized in that, The positioning and measuring component (7) includes a sliding block (701), which is slidably mounted on two vertical sliding rods (3). A vertical threaded rod (705) is longitudinally threaded through the sliding block (701). The bottom end of the vertical threaded rod (705) is fixedly connected to the top of the base (1), and the top end of the vertical threaded rod (705) passes through the top plate (5) and is fixedly connected to a handle (704).

7. A strength testing device for plastic production according to claim 6, characterized in that, A measuring ruler (702) and a pointer (703) are fixedly connected to one side of the sliding block (701), and the measuring ruler (702) is provided with scale lines (706).

Images