Compression resistance detection equipment for plastic pipe production

Abstract

The invention discloses compression resistance detection equipment for plastic pipe production, which comprises a bottom plate, a stretching assembly is arranged at the top of the bottom plate, fixing assemblies are arranged at the top of the stretching assembly, an extrusion assembly is arranged between the two fixing assemblies, a first hydraulic rod is fixedly mounted on the side surface of a connecting block, and a second hydraulic rod is fixedly mounted on the side surface of the connecting block. And clamping blocks are fixedly mounted at the output ends of the first hydraulic rods, and the two clamping blocks corresponding up and down are symmetrical and attached to the outer side of the plastic pipe. According to the compression resistance detection equipment for plastic pipe production, an outer ring can be driven to rotate through rotation of a rotating ring, so that clamping blocks on the outer side can be driven to rotate through rotation of the outer ring, and the clamping blocks on the two sides can be synchronously and reversely rotated through synchronous and reverse rotation of first motors on the two sides; the clamping blocks rotating synchronously and reversely can twist the left side and the right side of the plastic pipe clamped by the inner sides of the clamping blocks, and the torsion resistance of the plastic pipe is detected by twisting the plastic pipe.

Description

Technical Field

[0001] The invention relates to the technical field of plastic pipe detection, in particular to a compression resistance detection device for plastic pipe production. Background Art

[0002] Plastic pipe is a kind of pipe made of synthetic resin as the main raw material. It has many significant advantages, such as light weight, easy handling and installation, which greatly reduces the difficulty and cost of construction. It has strong corrosion resistance and can resist the erosion of various chemical substances such as acid, alkali, salt, etc., and can maintain stable performance in various complex environments. The inner wall is smooth and the fluid resistance is small, which can improve the efficiency of fluid transportation and reduce energy loss. At the same time, it has good sealing performance, which can effectively prevent leakage and ensure the safe operation of the system. Plastic pipes have various connection methods and are easy to operate, such as hot melt connection, adhesive connection, etc., which greatly improves the installation efficiency. Its relatively low cost and affordable price, coupled with a wide range of raw materials, make plastic pipes widely used in many fields such as construction, water supply and drainage, gas transportation, agricultural irrigation, etc.

[0003] During the use of plastic pipes, their structural strength is directly related to their safety and service life. Therefore, after the production of plastic pipes, their strength needs to be tested. Usually, the compression resistance of plastic pipes is tested by extrusion. However, only testing the compression resistance cannot simulate the actual use environment of plastic pipes, which leads to incomplete performance testing of plastic pipes.

[0004] To this end, the present invention provides a compression testing device for plastic pipe production to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a compression resistance testing device for plastic pipe production, which solves the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A compression testing device for plastic pipe production, comprising a bottom plate, a stretching component is arranged on the top of the bottom plate, a fixed component is arranged on the top of the stretching component, an extrusion component is arranged between the two fixed components, a plastic pipe is arranged inside the fixed component and the extrusion component, a moving component is arranged on the top of the bottom plate and on the left side of the plastic pipe, the stretching component comprises a moving block, the moving block is slidably connected to the top of the bottom plate, the fixed component comprises a support block, the support block is fixedly installed on the top of the moving block, two limiting rings are fixedly installed on the top of the support block, an outer ring is inserted inside the two limiting rings, a rotating ring is fixedly installed on the outer side of the outer ring, the rotating ring is rotatably connected between the two limiting rings, the plastic pipe passes through the inner side of the outer ring, and connecting blocks are fixedly installed on the upper and lower sides of the inner side of the outer ring, a first hydraulic rod is fixedly installed on the side of the connecting block, a clamping block is fixedly installed on the output end of the first hydraulic rod, and the two corresponding clamping blocks above and below are symmetrical to each other and fit on the outer side of the plastic pipe.

[0007] Preferably: an extension plate is fixedly installed on the back of the moving block, a first motor is fixedly installed on the top of the extension plate, a first gear is fixedly installed on the output end of the first motor, a gear ring is fixedly installed on the outer side of the rotating ring, and the gear ring is meshed with the corresponding first gear.

[0008] Preferably: the stretching assembly also includes two side plates, a first screw is rotatably connected between the two side plates, the threaded knobs on both sides of the center of the first screw are different, two movable blocks are respectively screwed on the outside of two different rotation directions of threads of the first screw, a second motor is fixedly installed on the right side of the side plate, and the output end of the second motor movably passes through the inside of the side plate and is fixedly connected to the first screw.

[0009] Preferably, the extrusion assembly includes a support rod, the support rod is fixedly mounted on the top of the bottom plate, a support ring is fixedly mounted between the tops of the support rods, the plastic tube passes through the inside of the support ring, and the support ring is located between the left and right outer rings.

[0010] Preferably: a second hydraulic rod is fixedly installed on the left side of the support ring, a third hydraulic rod is fixedly installed on the right side of the support ring, the second hydraulic rod and the third hydraulic rod are fixedly installed on the upper and lower sides of the support ring, and extrusion plates are fixedly installed between the output ends of the second hydraulic rod and the third hydraulic rod on the left and right sides, and the upper and lower extrusion plates are respectively located on the upper and lower sides of the plastic pipe.

[0011] Preferably: the moving component includes a moving disk, a slide groove is opened inside the moving disk, a slider is slidably connected inside the slide groove, a third screw is rotatably connected inside the slide groove, the third screw is threadedly connected and passes through the corresponding slider, a clamping rod is fixedly installed on the right side of the slider, and the clamping rod is attached to the outside of the plastic tube.

[0012] Preferably: an internal groove is opened inside the movable plate, and the side wall of the internal groove is rotatably connected to a rotating rod, and the rotating rod movably passes through the inner wall of the internal groove and is fixedly connected to the corresponding third screw rod, a fourth motor is fixedly installed inside the internal groove, and a second bevel gear is fixedly installed on the output end of the fourth motor, and a first bevel gear is fixedly installed on the end face of the rotating rod, and the first bevel gear and the second bevel gear are meshed with each other.

[0013] Preferably: the moving assembly also includes a support frame, two limit plates are fixedly installed on the top of the support frame, a rack is slidably connected between the two limit plates, the right side of the support frame is fixedly installed on the left side of the moving disk, a second gear is rotatably connected between the two limit plates, the second gear and the rack are meshed with each other, a third motor is fixedly installed on the front side of the limit plate, and the output end of the third motor movably passes through the interior of the limit plate and is fixedly connected to the second gear.

[0014] Beneficial Effects

[0015] The present invention provides a compression testing device for plastic pipe production. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The compression testing equipment for plastic pipe production can drive the outer ring to rotate by rotating the rotating ring, thereby driving the outer clamping block to rotate by rotating the outer ring. The clamping blocks on both sides can be rotated synchronously and reversely by the synchronous reverse rotation of the first motors on both sides. The clamping blocks that rotate synchronously and reversely can twist the left and right sides of the plastic pipe clamped by the inner side of the clamping block, and the torsion resistance of the plastic pipe can be tested by twisting the plastic pipe.

[0017] 2. The compression testing equipment for plastic pipe production realizes synchronous rotation of both ends of the plastic pipe through the synchronously rotating outer ring, thereby realizing the self-rotation of the plastic pipe. The position of the plastic pipe between the upper and lower extrusion plates can be changed through the self-rotation of the plastic pipe. By adjusting the angle of the plastic pipe position, the compression capacity test of different angles at the same position on the plastic pipe can be realized.

[0018] 3. The synchronous reverse movement of the moving block can drive the upper clamping block to move synchronously in the opposite direction. By synchronously moving the clamping blocks on both sides in the opposite direction, pulling force can be applied to the plastic pipe on both sides, thereby achieving the purpose of testing the tensile strength of the plastic pipe.

[0019] 4. The third motor is started to drive the second gear to rotate, and the rotation of the second gear can drive the rack to move. The movement of the rack can drive the movable plate to move, thereby driving the inner plastic tube to move. The position of the plastic tube between the two extrusion plates can be changed by moving the plastic tube. By changing the position of the plastic tube, the purpose of compressive testing of different positions of the plastic tube is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a three-dimensional diagram of the external structure of the present invention;

[0022] Figure 2 is a three-dimensional diagram of the back structure of the present invention;

[0023] Figure 3 It is a side structural stereogram of the present invention;

[0024] Figure 4 The present invention Figure 3 A magnified view of the structure at center;

[0025] Figure 5 It is a three-dimensional diagram of the overall structure of the fixing assembly of the present invention;

[0026] Figure 6 This is a three-dimensional diagram of the overall disassembled structure of the fixing assembly of the present invention;

[0027] Figure 7 is a stereogram of the overall structure of the extrusion assembly of the present invention;

[0028] Figure 8 It is a three-dimensional diagram of the overall structure of the mobile assembly of the present invention;

[0029] Fig. 9 It is a front structural stereogram of the movable plate of the present invention;

[0030] Fig.10 It is a sectional stereoscopic view of the internal structure of the moving disk of the present invention.

[0031] In the figure: 1, bottom plate; 2, fixing assembly; 21, outer ring; 22, limiting ring; 23, support block; 24, connecting block; 25, first hydraulic rod; 26, clamping block; 27, gear ring; 28, extension plate; 29, first motor; 210, first gear; 211, rotating ring; 3, stretching assembly; 31, moving block; 32, first screw; 33, side plate; 34, second motor; 4, extrusion assembly; 41, support rod; 42, support ring; 43. Second hydraulic rod; 44. Third hydraulic rod; 45. Extrusion plate; 5. Moving assembly; 51. Moving plate; 52. Clamping rod; 53. Rack; 54. Support frame; 55. Limiting plate; 56. Second gear; 57. Third motor; 58. Slide groove; 59. Sliding block; 510. Third screw rod; 511. Internal groove; 512. Rotating rod; 513. First bevel gear; 514. Second bevel gear; 515. Fourth motor; 6. Plastic pipe. DETAILED DESCRIPTION

[0032] It should be noted that in the description of the embodiments of the present application, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] The present application is further described in detail below through drawings and examples.

[0034] Reference Figures 1 to 10The embodiment of the present application provides a compressive testing device for plastic pipe production, including a bottom plate 1, a stretching component 3 is arranged on the top of the bottom plate 1, a fixing component 2 is arranged on the top of the stretching component 3, an extrusion component 4 is arranged between the two fixing components 2, a plastic pipe 6 is arranged inside the fixing component 2 and the extrusion component 4, a moving component 5 is arranged on the top of the bottom plate 1 and on the left side of the plastic pipe 6, the stretching component 3 includes a moving block 31, the moving block 31 is slidably connected to the top of the bottom plate 1, the fixing component 2 includes a supporting block 23, and the supporting block 23 is fixedly installed on the moving block 31 At the top, two limiting rings 22 are fixedly installed on the top of the support block 23, the outer ring 21 is inserted inside the two limiting rings 22, and a rotating ring 211 is fixedly installed on the outer side of the outer ring 21. The rotating ring 211 is rotatably connected between the two limiting rings 22, and the plastic tube 6 passes through the inner part of the outer ring 21. Connecting blocks 24 are fixedly installed on the upper and lower sides of the inner side of the outer ring 21, and a first hydraulic rod 25 is fixedly installed on the side of the connecting block 24. A clamping block 26 is fixedly installed on the output end of the first hydraulic rod 25, and the two corresponding clamping blocks 26 on the upper and lower sides are symmetrical to each other and fit on the outer side of the plastic tube 6.

[0035] An extension plate 28 is fixedly installed on the back of the moving block 31, a first motor 29 is fixedly installed on the top of the extension plate 28, a first gear 210 is fixedly installed on the output end of the first motor 29, a gear ring 27 is fixedly installed on the outer side of the rotating ring 211, and the gear ring 27 is meshed with the corresponding first gear 210.

[0036] In this embodiment, when the plastic tube 6 is inspected, the plastic tube 6 can be inserted between the two outer rings 21, and the first hydraulic rods 25 on the upper and lower sides are started to drive the inner clamping blocks 26 to move, and the clamping blocks 26 on the upper and lower sides are clamped on the outer side of the plastic tube 6 to fix the plastic tube 6, and the clamping blocks 26 on the left and right sides of the plastic tube 6 are fixed. After the fixation is completed, the first motor 29 is started to drive the first gear 210 to rotate, and the rotation of the first gear 210 can drive the gear ring 27 to rotate, and the gear ring 27 rotates. The rotating ring 211 can be driven to rotate. The rotating ring 211 and the outer ring 21 are supported and limited by the limiting ring 22. The rotation of the rotating ring 211 can drive the outer ring 21 to rotate, so that the rotation of the outer ring 21 can drive the outer clamping block 26 to rotate. The first motors 29 on both sides rotate synchronously in the opposite direction, so the clamping blocks 26 on both sides can be rotated synchronously in the opposite direction. The clamping blocks 26 that rotate synchronously in the opposite direction can twist the left and right sides of the plastic tube 6 clamped by the inner side of the clamping block 26, and the torsion resistance of the plastic tube 6 can be tested by twisting the plastic tube 6.

[0037] Reference Figures 1 to 10In one aspect of the present embodiment, the stretching assembly 3 further includes two side plates 33, a first screw 32 is rotatably connected between the two side plates 33, the threaded knobs on both sides of the center of the first screw 32 are different, and the two moving blocks 31 are respectively screwed on the outside of two different rotational threads of the first screw 32, and a second motor 34 is fixedly installed on the right side of the side plate 33, and the output end of the second motor 34 movably passes through the inside of the side plate 33 and is fixedly connected to the first screw 32. The extrusion assembly 4 includes a support rod 41, the support rod 41 is fixedly installed on the top of the bottom plate 1, and a support ring 42 is fixedly installed between the tops of the support rods 41, and the plastic tube 6 passes through the inside of the support ring 42, and the support ring 42 is located between the left and right outer rings 21. A second hydraulic rod 43 is fixedly installed on the left side of the support ring 42, a third hydraulic rod 44 is fixedly installed on the right side of the support ring 42, the second hydraulic rod 43 and the third hydraulic rod 44 are fixedly installed on the upper and lower sides of the support ring 42, and an extrusion plate 45 is fixedly installed between the output ends of the second hydraulic rod 43 and the third hydraulic rod 44 on the left and right sides, and the upper and lower extrusion plates 45 are respectively located on the upper and lower sides of the plastic pipe 6.

[0038] In this embodiment, after the plastic tube 6 is clamped and fixed by the clamping block 26, the second hydraulic rod 43 and the third hydraulic rod 44 can be started to drive the extrusion plate 45 to move, and the extrusion plates 45 on the upper and lower sides can be synchronously moved in opposite directions to clamp and squeeze the plastic tube 6. The pressure resistance of the plastic tube 6 can be tested by clamping and squeezing the plastic tube 6 by the extrusion plates 45; and when testing the pressure resistance, the first motor 29 can be synchronously started to drive the rotating ring 211 to rotate synchronously, thereby driving the outer ring 21 synchronously, and the synchronously rotating outer ring 21 can realize the synchronous rotation of the two ends of the plastic tube 6, thereby realizing the self-rotation of the plastic tube 6. The position of the plastic tube 6 between the upper and lower extrusion plates 45 can be changed by the self-rotation of the plastic tube 6, and the pressure resistance of the same position on the plastic tube 6 at different angles can be tested by adjusting the angle of the position of the plastic tube 6.

[0039] After the clamping block 26 fixes the plastic tube 6, the second motor 34 can be started to drive the first screw 32 to rotate. The rotation of the first screw 32 can drive the two outer moving blocks 31 to move synchronously in the opposite direction. The synchronous reverse movement of the moving blocks 31 can drive the upper clamping block 26 to move synchronously in the opposite direction. By the synchronous reverse movement of the clamping blocks 26 on both sides, pulling force can be applied to the plastic tube 6 on both sides, thereby achieving the purpose of testing the tensile strength of the plastic tube 6.

[0040] Reference Figures 1 to 10In one aspect of the present embodiment, the moving component 5 includes a moving disk 51, a slide groove 58 is opened inside the moving disk 51, a slider 59 is slidably connected inside the slide groove 58, a third screw 510 is rotatably connected inside the slide groove 58, the third screw 510 is threadedly connected and passes through the corresponding slider 59, and a clamping rod 52 is fixedly installed on the right side of the slider 59, and the clamping rod 52 is attached to the outer side of the plastic tube 6.

[0041] The moving plate 51 has an internal groove 511, and a rotating rod 512 is rotatably connected to the side wall of the internal groove 511. The rotating rod 512 movably penetrates the inner wall of the internal groove 511 and is fixedly connected to the corresponding third screw rod 510. A fourth motor 515 is fixedly installed inside the internal groove 511, and a second bevel gear 514 is fixedly installed on the output end of the fourth motor 515. A first bevel gear 513 is fixedly installed on the end face of the rotating rod 512, and the first bevel gear 513 and the second bevel gear 514 are meshed with each other. The moving assembly 5 also includes a support frame 54, and two limit plates 55 are fixedly installed on the top of the support frame 54. A rack 53 is slidably connected between the two limit plates 55. The right side of the support frame 54 is fixedly installed on the left side of the moving plate 51, and a second gear 56 is rotatably connected between the two limit plates 55. The second gear 56 and the rack 53 are meshed with each other. A third motor 57 is fixedly installed on the front of the limit plate 55, and the output end of the third motor 57 movably penetrates the inside of the limit plate 55 and is fixedly connected to the second gear 56.

[0042] In this embodiment, when testing the pressure resistance, the clamping of the clamping block 26 can be released first, and the second bevel gear 514 can be driven to rotate by starting the fourth motor 515. The rotation of the second bevel gear 514 can drive the first bevel gear 513 to rotate synchronously. The synchronous rotation of the first bevel gear 513 can drive the rotating rod 512 to rotate synchronously, thereby driving the third screw rod 510 to rotate synchronously. The synchronous rotation of the third screw rod 510 can adjust the position of the slider 59 and the clamping rod 52, and the position of the synchronous clamping rod 52 is clamped on the left side of the plastic tube 6 to achieve clamping of the plastic tube 6. After clamping, the second gear 56 can be driven to rotate by starting the third motor 57. The rotation of the second gear 56 can drive the rack 53 to move. The movement of the rack 53 can drive the movable plate 51 to move, thereby driving the inner plastic tube 6 to move. The position of the plastic tube 6 between the two extrusion plates 45 can be changed by moving the plastic tube 6. The purpose of performing pressure resistance testing on different positions of the plastic tube 6 is achieved by changing the position of the plastic tube 6.

[0043] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0044] Working principle: When testing the plastic tube 6, the plastic tube 6 can be inserted between the two outer rings 21, and the first hydraulic rods 25 on the upper and lower sides are started to drive the inner clamping blocks 26 to move, and the clamping blocks 26 on the upper and lower sides are clamped on the outer side of the plastic tube 6 to fix the plastic tube 6, and the clamping blocks 26 on the left and right sides of the plastic tube 6 are used to fix the left and right sides of the plastic tube 6. After the fixation is completed, the first motor 29 is started to drive the first gear 210 to rotate, and the rotation of the first gear 210 can drive the gear ring 27 to rotate, and the rotation of the gear ring 27 can The rotating ring 211 is driven to rotate. The rotating ring 211 and the outer ring 21 are supported and limited by the limiting ring 22. The outer ring 21 can be driven to rotate by the rotation of the rotating ring 211, so that the outer clamping block 26 can be driven to rotate by the rotation of the outer ring 21. The clamping blocks 26 on both sides can be synchronously rotated in the opposite direction by the synchronously reverse rotation of the first motors 29 on both sides. The clamping blocks 26 on both sides can be synchronously rotated in the opposite direction. The clamping blocks 26 that rotate synchronously in the opposite direction can twist the left and right sides of the plastic tube 6 clamped by the inner side of the clamping blocks 26. The twisting of the plastic tube 6 can realize the torsion resistance test of the plastic tube 6.

[0045] After the plastic tube 6 is clamped and fixed by the clamping block 26, the squeezing plate 45 can be driven to move by starting the second hydraulic rod 43 and the third hydraulic rod 44. The squeezing plates 45 on the upper and lower sides can be synchronously moved in opposite directions to clamp and squeeze the plastic tube 6. The compressive strength of the plastic tube 6 can be tested by clamping and squeezing the plastic tube 6 by the squeezing plates 45. When testing the compressive strength, the rotating ring 211 can be driven to rotate synchronously by starting the first motor 29 synchronously, thereby driving the outer ring 21 synchronously. The synchronously rotating outer ring 21 can realize synchronous rotation of both ends of the plastic tube 6, thereby realizing the self-rotation of the plastic tube 6. The position of the plastic tube 6 between the upper and lower squeezing plates 45 can be changed by the self-rotation of the plastic tube 6. The compressive strength of the same position on the plastic tube 6 at different angles can be tested by adjusting the angle of the position of the plastic tube 6.

[0046] After the clamping block 26 fixes the plastic tube 6, the second motor 34 can be started to drive the first screw 32 to rotate, and the rotation of the first screw 32 can drive the two outer moving blocks 31 to move synchronously in the opposite direction, and the synchronous reverse movement of the moving blocks 31 can drive the upper clamping block 26 to move synchronously in the opposite direction, and the clamping blocks 26 on both sides move synchronously in the opposite direction, so that a tensile force can be applied to the plastic tube 6 on both sides, thereby achieving the purpose of testing the tensile strength of the plastic tube 6;

[0047] When testing the pressure resistance, the clamping block 26 can be first released, and the second bevel gear 514 can be driven to rotate by starting the fourth motor 515. The rotation of the second bevel gear 514 can drive the first bevel gear 513 to rotate synchronously. The synchronous rotation of the first bevel gear 513 can drive the rotating rod 512 to rotate synchronously, thereby driving the third screw rod 510 to rotate synchronously. The synchronous rotation of the third screw rod 510 can adjust the position of the slider 59 and the clamping rod 52, and the position of the synchronous clamping rod 52 is clamped on the left side of the plastic tube 6 to achieve clamping of the plastic tube 6. After clamping, the second gear 56 can be driven to rotate by starting the third motor 57. The rotation of the second gear 56 can drive the rack 53 to move. The movement of the rack 53 can drive the movable plate 51 to move, thereby driving the inner plastic tube 6 to move. The position of the plastic tube 6 between the two extrusion plates 45 can be changed by moving the plastic tube 6. The purpose of performing pressure resistance testing on different positions of the plastic tube 6 is achieved by changing the position of the plastic tube 6.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although the embodiments of the present application 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 the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A compression testing device for plastic pipe production, comprising a bottom plate (1), Features: A stretching assembly (3) is arranged on the top of the bottom plate (1), a fixing assembly (2) is arranged on the top of the stretching assembly (3), an extrusion assembly (4) is arranged between the two fixing assemblies (2), a plastic tube (6) is arranged inside the fixing assembly (2) and the extrusion assembly (4), a moving assembly (5) is arranged on the top of the bottom plate (1) and on the left side of the plastic tube (6), the stretching assembly (3) comprises a moving block (31), the moving block (31) is slidably connected to the top of the bottom plate (1), the fixing assembly (2) comprises a supporting block (23), the supporting block (23) is fixedly mounted on the top of the moving block (31), the supporting block (23) Two limiting rings (22) are fixedly installed on the top, and the inner parts of the two limiting rings (22) are plugged with outer rings (21). A rotating ring (211) is fixedly installed on the outer side of the outer ring (21), and the rotating ring (211) is rotatably connected between the two limiting rings (22). The plastic tube (6) passes through the inner part of the outer ring (21). Connecting blocks (24) are fixedly installed on the upper and lower sides of the inner side of the outer ring (21). A first hydraulic rod (25) is fixedly installed on the side of the connecting block (24). A clamping block (26) is fixedly installed on the output end of the first hydraulic rod (25). The two corresponding clamping blocks (26) are symmetrical to each other and fit on the outer side of the plastic tube (6).

2. A compression testing device for plastic pipe production according to claim 1, Features: An extension plate (28) is fixedly mounted on the back of the moving block (31), a first motor (29) is fixedly mounted on the top of the extension plate (28), a first gear (210) is fixedly mounted on the output end of the first motor (29), a gear ring (27) is fixedly mounted on the outer side of the rotating ring (211), and the gear ring (27) is meshed with the corresponding first gear (210).

3. A compression testing device for plastic pipe production according to claim 1, Features: The stretching assembly (3) further comprises two side plates (33), a first screw rod (32) being rotatably connected between the two side plates (33), the threaded knobs on both sides of the center of the first screw rod (32) being different, two moving blocks (31) being respectively screwed on the outer sides of two threads of different rotation directions of the first screw rod (32), a second motor (34) being fixedly mounted on the right side of the side plate (33), an output end of the second motor (34) movably passing through the inside of the side plate (33) and being fixedly connected to the first screw rod (32).

4. A compression testing device for plastic pipe production according to claim 1, Features: The extrusion assembly (4) comprises a support rod (41), the support rod (41) is fixedly mounted on the top of the base plate (1), a support ring (42) is fixedly mounted between the tops of the support rods (41), the plastic tube (6) passes through the inside of the support ring (42), and the support ring (42) is located between the left and right outer rings (21).

5. A compression testing device for plastic pipe production according to claim 4, Features: A second hydraulic rod (43) is fixedly mounted on the left side of the support ring (42), a third hydraulic rod (44) is fixedly mounted on the right side of the support ring (42), the second hydraulic rod (43) and the third hydraulic rod (44) are fixedly mounted on both upper and lower sides of the support ring (42), and extrusion plates (45) are fixedly mounted between the output ends of the second hydraulic rod (43) and the third hydraulic rod (44) on the left and right sides, and the upper and lower extrusion plates (45) are respectively located on the upper and lower sides of the plastic pipe (6).

6. A compression testing device for plastic pipe production according to claim 1, Features: The moving assembly (5) includes a moving disk (51), a slide groove (58) is provided inside the moving disk (51), a slider (59) is slidably connected inside the slide groove (58), a third screw rod (510) is rotatably connected inside the slide groove (58), the third screw rod (510) is threadedly connected and passes through the corresponding slider (59), and a clamp rod (52) is fixedly installed on the right side of the slider (59), and the clamp rod (52) is attached to the outer side of the plastic tube (6).

7. A compression testing device for plastic pipe production according to claim 6, Features: An internal groove (511) is provided inside the movable plate (51), and a rotating rod (512) is rotatably connected to the side wall of the internal groove (511), and the rotating rod (512) movably passes through the inner wall of the internal groove (511) and is fixedly connected to the corresponding third screw rod (510), and a fourth motor (515) is fixedly installed inside the internal groove (511), and a second bevel gear (514) is fixedly installed at the output end of the fourth motor (515), and a first bevel gear (513) is fixedly installed on the end surface of the rotating rod (512), and the first bevel gear (513) and the second bevel gear (514) are meshed with each other.

8. A compression testing device for plastic pipe production according to claim 1, Features: The moving assembly (5) further comprises a support frame (54), two limiting plates (55) are fixedly mounted on the top of the support frame (54), a rack (53) is slidably connected between the two limiting plates (55), the right side of the support frame (54) is fixedly mounted on the left side of the moving disk (51), a second gear (56) is rotatably connected between the two limiting plates (55), the second gear (56) and the rack (53) are meshed with each other, a third motor (57) is fixedly mounted on the front side of the limiting plate (55), and an output end of the third motor (57) movably passes through the interior of the limiting plate (55) and is fixedly connected to the second gear (56).

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