Pipe master batch tensile property testing device

Abstract

The utility model provides a pipe master batch tensile property testing device which comprises a bearing frame, a blanking hole is formed in the top of the bearing frame, vertical plates are symmetrically fixed to the top of the bearing frame and located at the two ends of the blanking hole, mounting plates are fixed to the tops of the two vertical plates, and a connecting plate is fixed between the two mounting plates. A movable plate is slidably mounted on the connecting plate in the horizontal direction, a connecting frame movably penetrates through the movable plate in the horizontal direction, and a gravity sensor making contact with the movable plate is fixed in the connecting frame. According to the utility model, through the design of the blanking hole and the collecting assembly, after a tensile property test is carried out on the pipe master batch sample strip, positioning of the pipe master batch sample strip by the two positioning mechanisms is canceled, and at the moment, pipe master batch sample strip waste materials on the two positioning mechanisms fall under the action of self gravity, so that the pipe master batch sample strip waste materials can fall into the collecting assembly through the blanking hole; and the pipe master batch sample strip waste can be collected through the collecting assembly, so that the pipe master batch sample strip waste can be conveniently collected, and the device is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe processing equipment, in particular to a pipe masterbatch tensile performance testing device. Background Art

[0002] Pipes are materials used to make pipe fittings. Different pipe fittings require different pipes. The quality of pipes directly determines the quality of pipe fittings. Plastic pipe processing is a process of converting plastic raw materials into tubular products through various pipe processing equipment. Before processing plastic pipes, it is necessary to process the masterbatch used for pipe processing into strips, and conduct tensile performance tests on the masterbatch strips to ensure the quality of the masterbatch and improve the quality of the processed pipes.

[0003] The drawings in the specification Figure 6 A tensile performance testing device for pipe master batches in the prior art is shown, comprising a mounting frame, a movable plate is slidably mounted on the mounting frame in a vertical direction, a connecting frame is movably penetrated on the movable plate in a vertical direction, a gravity sensor in contact with the top of the movable plate is fixedly mounted on the inner top wall of the connecting frame, an electric cylinder connected to the connecting frame is fixed on the inner top wall of the mounting frame, and a clamping mechanism is installed on the side where the connecting frame and the inner bottom wall of the mounting frame are close to each other. When the tensile performance test is performed on the pipe master batch spline, two clamping mechanisms are used to clamp the two ends of the pipe master batch spline respectively, and the electric cylinder is controlled to displace the connecting frame in a direction away from the positioning mechanism, so that the two positioning mechanisms are separated. At this time, the connecting frame slides and displaces on the movable plate, and the force detection signal of the gravity sensor changes, thereby achieving the tensile performance test effect of the pipe master batch spline;

[0004] However, in actual use, there are still the following defects:

[0005] After the tensile performance test of the pipe masterbatch spline is performed, waste pipe masterbatch spline will be generated. Since the waste pipe masterbatch spline can be recycled and reused, the defective waste collection mechanism in the testing device in the above-mentioned prior art requires the staff to remove the waste pipe masterbatch spline after the tensile performance test of the pipe masterbatch spline and then collect it, which is inconvenient;

[0006] Therefore, the present application proposes a device for testing the tensile properties of pipe masterbatch. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a tube masterbatch tensile performance testing device, which solves the problems mentioned in the background technology.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A device for testing the tensile properties of pipe master batches, comprising a load-bearing frame, a blanking hole is provided on the top of the load-bearing frame, vertical plates are symmetrically fixed on the top of the load-bearing frame and at both ends of the blanking hole, mounting plates are fixed on the tops of the two vertical plates, a connecting plate is fixed between the two mounting plates, a moving plate is slidably mounted on the connecting plate in a horizontal direction, a connecting frame is movably penetrated through the moving plate in a horizontal direction, a gravity sensor in contact with the moving plate is fixed in the connecting frame, a positioning mechanism is installed on one side of one mounting plate and the connecting frame close to each other and located above the blanking hole, two sets of positioning mechanisms are used to fix the pipe master batch spline, and a driving mechanism acting on the moving plate is installed on the two mounting plates, which is used to make the moving plate slide or stop sliding on the connecting plate;

[0010] A collecting assembly is installed on the carrier and below the drop hole, and is used to collect pipe masterbatch spline waste.

[0011] Further: the positioning mechanism includes a positioning block, a positioning clamp and a bidirectional threaded rod, two positioning clamps are slidably installed on the positioning block in a horizontal direction, the bidirectional threaded rod is horizontally and rotatably installed on the positioning block, and the bidirectional threaded rod is threadedly connected to the two positioning clamps.

[0012] Further: the driving mechanism includes a driving rod which is horizontally and rotatably mounted on two mounting plates, the driving rod is threadedly connected to the movable plate, and a motor for driving the driving rod to rotate is fixedly mounted on one of the mounting plates.

[0013] Further: the collecting component includes a collecting hopper fixedly mounted on the supporting frame and located below the material dropping hole, the collecting hopper is connected to the supporting frame, a collecting box is fixed on the supporting frame and located below the collecting hopper, a feeding port is provided at the top of the collecting box, the bottom of the collecting hopper is connected to the collecting box through the feeding port, a slot connected to the interior of the collecting box is provided at the bottom position of one side of the collecting box, and a collecting box with an open top is inserted into the slot on the collecting box.

[0014] Further: a crushing mechanism is installed on the support frame and between the opposite sides of the collecting hopper and the collecting box, the feed end of the crushing mechanism is connected to the bottom of the collecting hopper, and the discharge end of the crushing mechanism is connected to the collecting box through the feed port.

[0015] Further: the crushing mechanism includes a crushing shell fixedly mounted on the supporting frame and located between the opposite sides of the collecting hopper and the collecting box, the top of the crushing shell is connected to the bottom of the collecting hopper, the bottom of the crushing shell is connected to the collecting box through the feed port, two mutually meshing crushing rollers are rotatably mounted in the crushing shell, the two crushing rollers are connected by a spur gear assembly, a transmission mechanism is installed on the supporting frame, one end of the transmission mechanism is connected to the driving rod, and the other end is connected to one of the crushing rollers, when the driving rod rotates on the two mounting plates, the transmission mechanism is used to make the crushing roller rotate unidirectionally in the crushing shell.

[0016] Further: the transmission mechanism comprises:

[0017] A rotating rod is rotatably mounted on the carrier frame, one end of which is coaxially fixed with a driving bevel gear, one end of the crushing roller extends to the outside of the crushing shell and is rotatably mounted with a driven bevel gear through a one-way bearing, the driven bevel gear is meshed with the driving bevel gear, and the rotating rod is connected to the driving rod through a bevel gear assembly.

[0018] Furthermore: the ratio of the number of teeth of the driving bevel gear to that of the driven bevel gear is three to one.

[0019] The utility model provides a device for testing the tensile properties of pipe masterbatch. Compared with the prior art, it has the following beneficial effects:

[0020] 1. Through the design of the blanking hole and the collecting component, after the tensile performance test of the pipe masterbatch spline is completed, the positioning of the pipe masterbatch spline by the two positioning mechanisms is cancelled. At this time, the waste pipe masterbatch spline on the two positioning mechanisms falls under the action of its own gravity, and then falls into the collecting component through the blanking hole. The waste pipe masterbatch spline can be collected through the collecting component, which facilitates the collection of the waste pipe masterbatch spline and is easy to use;

[0021] 2. Through the design of the crushing mechanism, when the pipe masterbatch spline waste falling into the collecting hopper falls into the collecting box through the feed port, the pipe masterbatch spline waste is first crushed by the crushing mechanism, and then falls into the collecting box through the feed port, so as to achieve the crushing effect of the pipe masterbatch spline waste, which is beneficial to the subsequent treatment of the pipe masterbatch spline waste;

[0022] 3. By setting the ratio of the number of teeth of the active bevel gear to that of the driven bevel gear to three to one, when the rotating rod rotates, the active bevel gear is driven to rotate, and the crushing roller is driven to rotate three circles in the crushing shell through the driven bevel gear and the one-way bearing, so that the two crushing rollers rotate three circles in the crushing shell, which is conducive to crushing the pipe masterbatch spline waste falling into the crushing shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A three-dimensional structural schematic diagram of the utility model is shown;

[0025] Figure 2 The schematic diagram of the installation structure of the transmission mechanism of the utility model is shown;

[0026] Figure 3 A schematic diagram of the installation structure of the positioning mechanism of the utility model is shown;

[0027] Figure 4 The utility model is shown Figure 3 The enlarged view of point A in the middle;

[0028] Figure 5 The schematic diagram of the installation structure of the crushing mechanism of the utility model is shown;

[0029] Figure 6 A tube masterbatch tensile property testing device in the prior art is shown;

[0030] As shown in the figure: 1. Carrying frame; 11. Dropping hole; 12. Vertical plate; 13. Mounting plate; 14. Connecting plate; 2. Moving plate; 21. Connecting frame; 22. Gravity sensor; 3. Positioning mechanism; 31. Positioning block; 32. Positioning clamp; 33. Bidirectional threaded rod; 4. Driving mechanism; 41. Driving rod; 42. Motor; 5. Collecting assembly; 51. Collecting hopper; 52. Collecting box; 521. Slot; 53. Collecting box; 6. Crushing mechanism; 61. Crushing shell; 62. Crushing roller; 63. Spur gear assembly; 7. Transmission mechanism; 71. Rotating rod; 72. Active bevel gear; 73. One-way bearing; 74. Driven bevel gear; 75. Bevel gear assembly. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Embodiment 1

[0033] In order to solve the technical problems in the background technology, a pipe masterbatch tensile performance testing device is provided as follows:

[0034] Combination Figure 1-Figure 5 As shown, a tube masterbatch tensile property testing device provided by the utility model comprises a carrier frame 1, a material drop hole 11 is opened on the top of the carrier frame 1, vertical plates 12 are symmetrically fixed on the top of the carrier frame 1 and located at both ends of the material drop hole 11, mounting plates 13 are fixed on the tops of the two vertical plates 12, a connecting plate 14 is fixed between the two mounting plates 13, a moving plate 2 is slidably installed on the connecting plate 14 in a horizontal direction, a connecting frame 21 is movably penetrated through the moving plate 2 in a horizontal direction, a gravity sensor 22 in contact with the moving plate 2 is fixed in the connecting frame 21, and the model of the gravity sensor 22 is PR6201, and the gravity sensor The device 22 is communicatively connected to a PLC control system, wherein a positioning mechanism 3 is installed on one side of a mounting plate 13 and a connecting frame 21 close to each other and located above the blanking hole 11. Specifically, the positioning mechanism 3 is located on the side of the movable plate 2 away from the gravity sensor 22, and two groups of positioning mechanisms 3 are used to fix the pipe master batch spline. A driving mechanism 4 acting on the movable plate 2 is installed on the two mounting plates 13, which is used to make the movable plate 2 slide or stop sliding on the connecting plate 14; a collecting component 5 is installed on the carrier 1 and located below the blanking hole 11, which is used to collect waste pipe master batch spline materials.

[0035] When the pipe masterbatch spline is subjected to a tensile performance test, the two ends of the pipe masterbatch spline are fixed respectively by two positioning mechanisms 3, and the movable plate 2 is slid on the connecting plate 14 by the driving mechanism 4, so that the two positioning mechanisms 3 are separated, and the pipe masterbatch spline can be stretched. At this time, the connecting frame 21 is displaced on the movable plate 2 toward the gravity sensor 22, and the force detection signal of the gravity sensor 22 changes, thereby achieving the tensile performance test effect of the pipe masterbatch spline;

[0036] Through the design of the drop hole 11 and the collecting component 5, after the tensile performance test of the pipe masterbatch spline is completed, the positioning of the pipe masterbatch spline by the two positioning mechanisms 3 is cancelled. At this time, the waste pipe masterbatch spline on the two positioning mechanisms 3 falls under the action of its own gravity, and thus can fall into the collecting component 5 through the drop hole 11. The waste pipe masterbatch spline can be collected through the collecting component 5, which facilitates the collection of the waste pipe masterbatch spline and is easy to use.

[0037] Embodiment 2

[0038] like Figure 1-Figure 5 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0039] In this embodiment, the positioning mechanism 3 includes a positioning block 31, a positioning clamping plate 32 and a bidirectional threaded rod 33. Specifically, the positioning blocks 31 of the two sets of positioning mechanisms 3 are respectively fixedly mounted on the side where the mounting plate 13 and the movable plate 2 are close to each other. Two positioning clamping plates 32 are slidably mounted on the positioning block 31 in a horizontal direction. The bidirectional threaded rod 33 is horizontally and rotatably mounted on the positioning block 31. The bidirectional threaded rod 33 is threadedly connected with the two positioning clamping plates 32. When the pipe masterbatch spline is fixed, the pipe masterbatch spline is The two ends of the strip are respectively located on the opposite sides of the two positioning clamps 32 on the two positioning blocks 31. The two bidirectional threaded rods 33 are rotated respectively to make the positioning clamps 32 on the two positioning blocks 31 close to each other, so that the two positioning clamps 32 clamp and fix the ends of the pipe master batch spline, so that the pipe master batch spline can be positioned by the two positioning mechanisms 3. Conversely, the two bidirectional threaded rods 33 are rotated in the opposite direction to make the positioning clamps 32 on the two positioning blocks 31 move away from each other, so that the fixation of the pipe master batch spline can be cancelled, and the operation is simple.

[0040] In this embodiment, the driving mechanism 4 includes a driving rod 41 which is horizontally and rotatably mounted on two mounting plates 13. The driving rod 41 is threadedly connected to the movable plate 2. A motor 42 for driving the driving rod 41 to rotate is fixedly mounted on one of the mounting plates 13. When in use, the motor 42 is controlled to be turned on, and the output shaft of the motor 42 rotates, which can drive the driving rod 41 to rotate on the two mounting plates 13, thereby causing the movable plate 2 to slide on the connecting plate 14.

[0041] In this embodiment, the collecting assembly 5 includes a collecting hopper 51 fixedly mounted on the supporting frame 1 and located below the drop hole 11, the collecting hopper 51 is connected to the supporting frame 1, a collecting box 52 is fixed on the supporting frame 1 and located below the collecting hopper 51, a feeding port is provided at the top of the collecting box 52, and the bottom of the collecting hopper 51 is connected to the collecting box 52 through the feeding port, a slot 521 connected to the interior of the collecting box 52 is provided at the bottom position of one side of the collecting box 52, and a collecting box 53 with an open top is inserted in the slot 521 on the collecting box 52. After the tensile performance test of the pipe masterbatch spline is completed, the reverse By rotating the two bidirectional threaded rods 33 to move the positioning clamps 32 on the two positioning blocks 31 away from each other, the fixation of the pipe master batch spline can be cancelled, so that the waste pipe master batch spline falls into the collecting hopper 51 through the drop hole 11, and then falls into the collecting box 52 through the feed port, and the waste pipe master batch spline is collected by the collecting box 52. Through the design of the collecting box 53, when the waste pipe master batch spline falls into the collecting box 52, it falls into the collecting box 53, and the collecting box 53 can be pulled out of the slot 521, and the collecting box 53 can be disassembled, thereby facilitating the processing of the collected waste pipe master batch spline.

[0042] In this embodiment, a crushing mechanism 6 is installed on the supporting frame 1 and between the opposite sides of the collecting hopper 51 and the collecting box 52. Specifically, the crushing mechanism 6 is used to crush the waste pipe master batch spline, and the feed end of the crushing mechanism 6 is connected with the bottom of the collecting hopper 51, and the discharge end of the crushing mechanism 6 is connected with the collecting box 52 through the feed port. Through the design of the crushing mechanism 6, when the waste pipe master batch spline falling into the collecting hopper 51 falls into the collecting box 52 through the feed port, the waste pipe master batch spline is first crushed by the crushing mechanism 6, and then falls into the collecting box 52 through the feed port, thereby achieving the crushing effect of the waste pipe master batch spline, which is beneficial to the subsequent treatment of the waste pipe master batch spline.

[0043] Embodiment 3

[0044] like Figure 1-Figure 5 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0045] In this embodiment, the crushing mechanism 6 includes a crushing shell 61 fixedly mounted on the carrier frame 1 and located between the opposite sides of the collecting hopper 51 and the collecting box 52, the top of the crushing shell 61 is connected to the bottom of the collecting hopper 51, and the bottom of the crushing shell 61 is connected to the collecting box 52 through the feed port, and two mutually meshing crushing rollers 62 are rotatably mounted in the crushing shell 61, and the two crushing rollers 62 are connected by a spur gear assembly 63, and the spur gear assembly 63 includes two mutually meshing spur gears, and the two spur gears are coaxially fixed to the two crushing rollers 62, respectively. A transmission mechanism 7 is installed on the carrier frame 1, and one end of the transmission mechanism 7 is connected to the driving rod 41, and the other end is connected to one of the crushing rollers 62. When the driving rod 41 rotates on the two mounting plates 13, the crushing roller 62 is caused to rotate unidirectionally in the crushing shell 61 through the transmission mechanism 7. Specifically, when the driving rod 41 rotates on the two mounting plates 13, the movable plate 2 slides along the connecting plate 14. , when the two groups of positioning mechanisms 3 are close to each other, the crushing roller 62 is rotated unidirectionally in the crushing shell 61 through the transmission mechanism 7, and the two crushing rollers 62 are rotated from bottom to top toward the side where the two crushing rollers 62 are close to each other through the spur gear assembly 63. When in use, after the tensile performance test of the pipe master batch spline is completed, the two bidirectional threaded rods 33 are rotated to make the positioning clamping plates 32 on the two positioning blocks 31 move away from each other, and the pipe master batch spline waste falls into the crushing shell 61 through the collecting hopper 51 and contacts the two crushing rollers 62, so that the driving rod 41 is rotated on the two mounting plates 13, so that the two groups of positioning mechanisms 3 are close to each other. When the next pipe master batch spline is tested, the crushing roller 62 is rotated unidirectionally in the crushing shell 61 through the transmission mechanism 7, and the two crushing rollers 62 are rotated from bottom to top toward the side where the two crushing rollers 62 are close to each other through the spur gear assembly 63, and the two crushing rollers 62 are meshed, so that the crushing effect of the pipe master batch spline waste can be achieved.

[0046] In this embodiment, the transmission mechanism 7 includes: a rotating rod 71, which is rotatably mounted on the carrier frame 1, one end of the rotating rod 71 is coaxially fixed with a driving bevel gear 72, one end of the crushing roller 62 extends to the outside of the crushing shell 61 and is rotatably mounted with a driven bevel gear 74 through a one-way bearing 73. Specifically, when the driving rod 41 rotates on the two mounting plates 13, the moving plate 2 slides along the connecting plate 14, so that the two sets of positioning mechanisms 3 approach each other, the one-way bearing 73 is in a self-locking state, the driven bevel gear 74 meshes with the driving bevel gear 72, and the rotating rod 71 is connected to the driving rod 41 through a bevel gear assembly 75. Specifically, the bevel gear assembly 75 includes two bevel gears that mesh with each other, one of which is coaxially fixed to the rotating rod 71, and the other is fixed to the rotating rod 71. The outer bevel gear is coaxially fixed to the driving rod 41. When in use, the driving rod 41 is rotated on the two mounting plates 13 by the motor 42, so that when the two groups of positioning mechanisms 3 are close to each other, the rotating rod 71 is rotated on the supporting frame 1 by the bevel gear assembly 75, driving the active bevel gear 72 to rotate, so that the crushing roller 62 can be driven to rotate in the crushing shell 61 through the driven bevel gear 74 and the one-way bearing 73. When the driving rod 41 is rotated on the two mounting plates 13 by the motor 42, so that the two groups of positioning mechanisms 3 are away from each other, the rotating rod 71 rotates on the supporting frame 1, driving the active bevel gear 72 to rotate. At this time, the one-way bearing 73 rotates by itself, and will not drive the crushing roller 62 to rotate in the crushing shell 61, thereby achieving the effect of making the crushing roller 62 rotate in the crushing shell 61 in one direction.

[0047] In this embodiment, the ratio of the number of teeth of the active bevel gear 72 to that of the driven bevel gear 74 is three to one. By setting the ratio of the number of teeth of the active bevel gear 72 to that of the driven bevel gear 74 to be three to one, when the rotating rod 71 rotates, the active bevel gear 72 is driven to rotate, and the crushing roller 62 is driven to rotate three times in the crushing shell 61 through the driven bevel gear 74 and the one-way bearing 73, so that the two crushing rollers 62 rotate three times in the crushing shell 61, which is conducive to crushing the pipe masterbatch spline waste falling into the crushing shell 61.

[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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe masterbatch tensile performance testing device, characterized in that: The utility model comprises a bearing frame, a blanking hole is provided on the top of the bearing frame, vertical plates are symmetrically fixed on the top of the bearing frame and at both ends of the blanking hole, mounting plates are fixed on the tops of the two vertical plates, a connecting plate is fixed between the two mounting plates, a movable plate is slidably mounted on the connecting plate in a horizontal direction, a connecting frame is movably penetrated through the movable plate in a horizontal direction, a gravity sensor in contact with the movable plate is fixed in the connecting frame, a positioning mechanism is installed on one side of one mounting plate and the connecting frame close to each other and located above the blanking hole, two sets of positioning mechanisms are used to fix the masterbatch spline of the pipe, and a driving mechanism acting on the movable plate is installed on the two mounting plates, which is used to make the movable plate slide or stop sliding on the connecting plate; A collecting assembly is installed on the carrier and below the drop hole, and is used to collect waste pipe master batch spline materials.

2. A pipe masterbatch tensile performance testing device according to claim 1, characterized in that: The positioning mechanism includes a positioning block, a positioning clamping plate and a bidirectional threaded rod. Two positioning clamping plates are slidably mounted on the positioning block in a horizontal direction. The bidirectional threaded rod is horizontally and rotatably mounted on the positioning block. The bidirectional threaded rod is threadedly connected to the two positioning clamping plates.

3. A pipe masterbatch tensile performance testing device according to claim 1, characterized in that: The driving mechanism comprises a driving rod which is horizontally and rotatably mounted on two mounting plates. The driving rod is threadedly connected to the moving plate. A motor for driving the driving rod to rotate is fixedly mounted on one of the mounting plates.

4. A pipe masterbatch tensile performance testing device according to claim 3, characterized in that: The collecting assembly includes a collecting hopper fixedly mounted on the supporting frame and located below the material dropping hole, the collecting hopper is connected to the supporting frame, a collecting box is fixed on the supporting frame and located below the collecting hopper, a feeding port is provided at the top of the collecting box, the bottom of the collecting hopper is connected to the collecting box through the feeding port, a slot connected to the interior of the collecting box is provided at the bottom position of one side of the collecting box, and a collecting box with an open top is inserted into the slot on the collecting box.

5. A pipe masterbatch tensile performance testing device according to claim 4, characterized in that: A crushing mechanism is installed on the support frame and between the opposite sides of the collecting hopper and the collecting box. The feeding end of the crushing mechanism is connected to the bottom of the collecting hopper, and the discharging end of the crushing mechanism is connected to the collecting box through the feeding port.

6. A pipe masterbatch tensile performance testing device according to claim 5, characterized in that: The crushing mechanism includes a crushing shell fixedly mounted on a supporting frame and located between opposite sides of a collecting hopper and a collecting box, the top of the crushing shell is connected to the bottom of the collecting hopper, the bottom of the crushing shell is connected to the collecting box through a feed port, two mutually meshing crushing rollers are rotatably mounted in the crushing shell, and the two crushing rollers are connected by a spur gear assembly, a transmission mechanism is mounted on the supporting frame, one end of the transmission mechanism is connected to a driving rod, and the other end is connected to one of the crushing rollers, and when the driving rods rotate on the two mounting plates, the crushing rollers are caused to rotate unidirectionally in the crushing shell through the transmission mechanism.

7. A pipe masterbatch tensile performance testing device according to claim 6, characterized in that: The transmission mechanism comprises: A rotating rod is rotatably mounted on the carrier frame, one end of which is coaxially fixed with a driving bevel gear, one end of the crushing roller extends to the outside of the crushing shell and is rotatably mounted with a driven bevel gear through a one-way bearing, the driven bevel gear is meshed with the driving bevel gear, and the rotating rod is connected to the driving rod through a bevel gear assembly.

8. A pipe masterbatch tensile performance testing device according to claim 7, characterized in that: The ratio of the number of teeth of the driving bevel gear to that of the driven bevel gear is three to one.

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