Tensile test equipment used after plastic pipe production

Abstract

The utility model relates to the technical field of plastic pipe production, and provides a tensile test device after plastic pipe production, which comprises a machine frame, two moving frames, two clamping mechanisms, a cooling mechanism and a moving mechanism, the two moving frames are arranged on the machine frame in a sliding mode, the two clamping mechanisms are arranged on the machine frame in a sliding mode, and the cooling mechanism is arranged on the machine frame. The two moving frames are arranged on the rack, the two clamping mechanisms are arranged on the two moving frames correspondingly and used for fixing the two ends of a plastic pipe, the cooling mechanism is arranged on the rack and used for cooling the plastic pipe, and the moving mechanism is arranged on the rack and used for driving the two moving frames to move. The problems that in the prior art, the contact area of a bolt and a plastic pipe is limited, when the plastic pipe is stretched, the contact position of the plastic pipe and the bolt is likely to be pulled out of a notch, and then the tensile test of the plastic pipe is likely to be affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe production, and particularly relates to a tensile test device for plastic pipes after production. Background Art

[0002] Plastic pipes are generally made of synthetic resin, that is, polyester, as raw materials, and stabilizers, lubricants, plasticizers, etc. are added. They are processed by extrusion in a pipe-making machine by the method of "plastic molding". After the production of plastic pipes, in order to ensure the production quality and safety of plastic pipes, tensile tests need to be carried out on plastic pipes. The tensile test can evaluate the performance of plastic pipes when subjected to tensile forces to determine whether they can withstand the expected use conditions and loads, and ensure the safety and reliability of the pipes in actual applications.

[0003] In order to improve the efficiency of the tensile test of plastic pipes, a tensile test device for plastic pipe processing with the patent publication number CN218067352U discloses a tensile test device for plastic pipes. The position of the plastic pipe on the U-shaped block is fixed through a locking member, and then the other end of the plastic pipe is fixed through a limiting member. Since multiple U-shaped blocks are provided, multiple plastic pipes can be fixed. After the plastic pipes are fixed, the connecting plate can be driven away from the first fixed block by a second driving member, so that the plastic pipes can be stretched. This structure can improve the efficiency of stretching the plastic pipes and can also adjust the stretching distance according to the length of the plastic pipes, which is convenient for the operation of the staff. However, when fixing the plastic pipes, the plastic pipes are directly fixed in the U-shaped blocks through bolts, and the contact area between the bolts and the plastic pipes is limited. When stretching the plastic pipes, it is easy to cause a notch at the position where the plastic pipes contact the bolts, which is likely to affect the tensile test of the plastic pipes. Summary of the Utility Model

[0004] The utility model provides a tensile test device for plastic pipes after production, which solves the problem in the related technology that the contact area between the bolts and the plastic pipes is limited, and when stretching the plastic pipes, it is easy to cause a notch at the position where the plastic pipes contact the bolts, which is likely to affect the tensile test of the plastic pipes.

[0005] The technical solution of the utility model is as follows: A tensile test device for plastic pipes after production, comprising: a frame, a moving frame, a clamping mechanism, a cooling mechanism and a moving mechanism;

[0006] There are two moving frames, and both of the two moving frames are slidably arranged on the frame;

[0007] There are two clamping mechanisms, and the two clamping mechanisms are respectively arranged on the two moving frames and are used for fixing the two ends of the plastic pipe;

[0008] The cooling mechanism is arranged on the frame and is used for cooling the plastic pipe;

[0009] The moving mechanism is arranged on the frame and is used to drive two moving frames to move.

[0010] Preferably, the clamping mechanism includes: clamping blocks, support shafts, heating wires and a driving component;

[0011] There are two clamping blocks, both of the two clamping blocks are arranged on the moving frame, and limiting grooves are formed on both of the two clamping blocks;

[0012] The support shaft is fixedly connected to the moving frame, and a through hole is formed on the support shaft;

[0013] The heating wire is arranged in the through hole;

[0014] The driving component is arranged on the moving frame and is used to drive the two clamping blocks to move relatively.

[0015] Further, the driving component includes: fixed frames, toothed plates, driving gears, driving rods and a transmission component;

[0016] There are two fixed frames, and both of the two fixed frames are fixedly connected to the moving frame;

[0017] There are two toothed plates, the two toothed plates are respectively slidably arranged in the two fixed frames, and the two toothed plates are respectively fixedly connected to the two clamping blocks;

[0018] There are two driving gears, the two driving gears are respectively rotatably arranged in the two fixed frames, and the two driving gears are respectively meshed with the two toothed plates;

[0019] There are two driving rods, the two driving rods are respectively fixedly connected to the two driving gears, and sliding grooves are formed on both of the two driving rods;

[0020] The transmission component is arranged on the moving frame and is used to drive the two driving rods to swing.

[0021] Still further, the transmission component includes: sliders, driving frames and a power component;

[0022] There are two sliders, two moving grooves are formed on the moving frame, and the two sliders are respectively slidably arranged in the two sliding grooves;

[0023] There are two driving frames, the two driving frames are respectively fixedly connected to the two sliders, and the two driving rods are respectively slidably and rotatably arranged on the two driving frames;

[0024] The power component is arranged on the moving frame and is used to drive the two sliders to move relatively.

[0025] As a further solution of the present application, the power assembly includes: a bidirectional screw and a first motor;

[0026] The bidirectional screw is rotatably arranged on the moving frame, screw holes are formed in both of the two sliders, and both of the two bidirectional screws are threadedly connected in the two screw holes;

[0027] The first motor is arranged on the moving frame, and the output end of the first motor is fixedly connected to the bidirectional screw.

[0028] As a still further solution of the present application, the cooling mechanism includes: a water tank, a water pump, a delivery pipe and a spray head;

[0029] The water tank is arranged inside the machine frame;

[0030] The water pump is arranged on the machine frame, and the input end of the water pump is communicated with the water tank;

[0031] The delivery pipe is communicated with the output end of the water pump;

[0032] A plurality of spray heads are provided, and all of the plurality of spray heads are communicated with the delivery pipe.

[0033] On the basis of the foregoing solution, the moving mechanism includes: an opposing screw and a second motor;

[0034] The opposing screw is rotatably arranged on the machine frame, screw holes are formed in both of the two moving frames, and the opposing screw is threadedly connected between the two screw holes;

[0035] The second motor is arranged on the machine frame, and the output end of the second motor is fixedly connected to the opposing screw.

[0036] On the basis of the foregoing solution and further, two slide bars are fixedly connected to the machine frame, two slide holes are formed in both of the two moving frames, and the two slide bars are respectively slidably arranged between each pair of opposite slide holes.

[0037] On the basis of the foregoing solution and further, two guiding bars are fixedly connected inside the fixing frame, two guiding grooves are formed in the toothed plate, and the two guiding bars are respectively slidably arranged in the two guiding grooves.

[0038] As a preferred technical solution of the present application, the support shaft is tapered and matches the limiting grooves on the two clamping blocks.

[0039] The working principle and beneficial effects of the present utility model are as follows:

[0040] 1. In the present utility model, through the arrangement of the clamping mechanism, it is convenient to stably fix both ends of the plastic pipe, the fixing area is relatively large, and it is not easy to generate cracks during stretching.

[0041] 2. In the present utility model, through the setting of the cooling mechanism, it is convenient to cool and form the plastic pipe after heating and fixing.

[0042] 3. In the present utility model, through the setting of the moving mechanism, it is convenient to conduct a stable tensile test on the fixed plastic pipe.

[0043] 4. In the present utility model, through the cooperation among the frame, the moving frame, the clamping mechanism, the cooling mechanism and the moving mechanism, it is convenient to increase the fixing area at both ends of the plastic pipe, improve the stability of the plastic pipe fixing, not easily affect the tensile test of the plastic pipe, and improve the tensile efficiency of the plastic pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The following further describes the present utility model in detail in conjunction with the drawings and specific embodiments.

[0045] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0046] Figure 2 is a schematic structural diagram of another angle of the whole of the present utility model;

[0047] Figure 3 is a schematic structural diagram of the clamping mechanism of the present utility model;

[0048] Figure 4 is a schematic structural diagram of the clamping block, the support shaft and the heating wire of the present utility model.

[0049] In the figure: 1, frame; 2, moving frame; 3, clamping block; 4, support shaft; 5, heating wire; 6, fixed frame; 7, toothed plate; 8, driving gear; 9, driving rod; 10, slider; 11, driving frame; 12, bidirectional screw; 13, first motor; 14, water tank; 15, water pump; 16, delivery pipe; 17, spray head; 18, relative screw; 19, second motor; 20, sliding rod; 21, guide bar. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0051] Such as Figures 1 to 4As shown in the figure, this embodiment proposes a tensile test device for plastic pipes after production, including: a frame 1, a moving frame 2, a clamping mechanism, a cooling mechanism and a moving mechanism. Two sliding rods 20 are fixedly connected to the frame 1. Two sliding holes are formed in each of the two moving frames 2. The two sliding rods 20 are respectively slidably arranged between every two opposite sliding holes. There are two moving frames 2, and both of the two moving frames 2 are slidably arranged on the frame 1. Through the cooperation among the frame 1, the moving frame 2, the clamping mechanism, the cooling mechanism and the moving mechanism, it is convenient to increase the fixing area at both ends of the plastic pipe, improve the fixing stability of the plastic pipe, and it is not easy to affect the tensile test of the plastic pipe, thus improving the tensile efficiency of the plastic pipe.

[0052] Among them, there are two clamping mechanisms, which are respectively arranged on two moving frames 2 and used to fix both ends of the plastic pipe. The clamping mechanism includes: a clamping block 3, a support shaft 4, a heating wire 5 and a driving component. The support shaft 4 is arranged in a conical shape and matches the limiting grooves on the two clamping blocks 3. There are two clamping blocks 3, both of which are arranged on the moving frame 2. Limiting grooves are opened on both clamping blocks 3. The support shaft 4 is fixedly connected to the moving frame 2. A through hole is opened on the support shaft 4, and the heating wire 5 is arranged in the through hole. The driving component is arranged on the moving frame 2 and used to drive the two clamping blocks 3 to move relatively. The driving component includes: a fixed frame 6, a toothed plate 7, a driving gear 8, a driving rod 9 and a transmission component. Two guiding bars 21 are fixedly connected inside the fixed frame 6. Two guiding grooves are opened on the toothed plate 7, and the two guiding bars 21 are respectively slidably arranged in the two guiding grooves. There are two fixed frames 6, both of which are fixedly connected to the moving frame 2. There are two toothed plates 7, and the two toothed plates 7 are respectively slidably arranged inside the two fixed frames 6. The two toothed plates 7 are respectively fixedly connected to the two clamping blocks 3. There are two driving gears 8, and the two driving gears 8 are respectively rotatably arranged inside the two fixed frames 6. The two driving gears 8 are respectively meshed with the two toothed plates 7. There are two driving rods 9, and the two driving rods 9 are respectively fixedly connected to the two driving gears 8. Chute grooves are opened on both driving rods 9. The transmission component is arranged on the moving frame 2 and used to drive the two driving rods 9 to swing. The transmission component includes: a slider 10, a driving frame 11 and a power component. There are two sliders 10. Two moving grooves are opened on the moving frame 2, and the two sliders 10 are respectively slidably arranged in the two chute grooves. There are two driving frames 11, and the two driving frames 11 are respectively fixedly connected to the two sliders 10. The two driving rods 9 are respectively slidably and rotatably arranged on the two driving frames 11. The power component is arranged on the moving frame 2 and used to drive the two sliders 10 to move relatively. The power component includes: a bidirectional screw 12 and a first motor 13. The bidirectional screw 12 is rotatably arranged on the moving frame 2. Threaded holes are opened on both sliders 10, and the two bidirectional screws 12 are respectively threadedly connected in the two threaded holes. The first motor 13 is arranged on the moving frame 2, and the output end of the first motor 13 is fixedly connected to the bidirectional screw 12. Specifically, one end of the plastic pipe is heated by a heating pipe so that one end of the plastic pipe matches and is sleeved on the support shaft 4. The first motor 13 arranged on the moving frame 2 drives the bidirectional screw 12 to rotate, thereby driving the two sliders 10 to move relatively, thereby driving the two driving frames 11 to move relatively, thereby driving the two driving rods 9 to swing relatively, and further driving the two rotating gears to rotate relatively, driving the two toothed plates 7 and the clamping blocks 3 to approach the support shaft 4, thereby fixing one end of the plastic pipe on the support shaft 4.

[0053] Among them, a cooling mechanism is arranged on the frame 1 and is used for cooling the plastic pipe. The cooling mechanism includes: a water tank 14, a water pump 15, a delivery pipe 16 and a spray head 17. The water tank 14 is arranged inside the frame 1, the water pump 15 is arranged on the frame 1, the input end of the water pump 15 is communicated with the water tank 14, the delivery pipe 16 is communicated with the output end of the water pump 15, and a plurality of spray heads 17 are provided. The plurality of spray heads 17 are all communicated with the delivery pipe 16. Specifically, the water in the water tank 14 is pumped out by the water pump 15, and the water is sprayed on the plastic pipe through the delivery pipe 16 and the spray heads 17, so as to shape the heated and shaped plastic pipe.

[0054] Among them, a moving mechanism is arranged on the frame 1 and is used for driving the two moving frames 2 to move. The moving mechanism includes: a relative screw 18 and a second motor 19. The relative screw 18 is rotatably arranged on the frame 1, and screw holes are formed in both of the two moving frames 2. The relative screw 18 is threadedly connected between the two screw holes. The second motor 19 is arranged on the frame 1, and the output end of the second motor 19 is fixedly connected to the relative screw 18. Specifically, the relative screw 18 is driven to rotate by the second motor 19, so as to drive the two moving frames 2 to move away from each other, so as to perform a tensile test on the plastic pipe.

[0055] In this embodiment, when it is necessary to stretch the plastic pipe, one end of the plastic pipe is heated by a heating pipe so that one end of the plastic pipe fits and sleeves on the support shaft 4. The first motor 13 arranged on the moving frame 2 drives the bidirectional screw 12 to rotate, so as to drive the two sliders 10 to move relatively, so as to drive the two driving frames 11 to move relatively, so as to drive the two driving rods 9 to swing relatively, and further drive the two rotating gears to rotate relatively, drive the two toothed plates 7 and the clamping blocks 3 to approach the support shaft 4, so as to fix one end of the plastic pipe on the support shaft 4. The water in the water tank 14 is pumped out by the water pump 15, and the water is sprayed on the plastic pipe through the delivery pipe 16 and the spray heads 17, so as to shape the heated and shaped plastic pipe. The relative screw 18 is driven to rotate by the second motor 19, so as to drive the two moving frames 2 to move away from each other, so as to perform a tensile test on the plastic pipe.

[0056] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tensile test device for plastic pipes after production, characterized in that, Including: Frame (1); Moving frames (2), two of the moving frames (2) are provided, and both of the two moving frames (2) are slidably arranged on the frame (1); Clamping mechanisms, two of the clamping mechanisms are provided, and the two clamping mechanisms are respectively arranged on the two moving frames (2) for fixing both ends of the plastic pipe; Cooling mechanism, which is arranged on the frame (1) for cooling the plastic pipe; Moving mechanism, which is arranged on the frame (1) for driving the two moving frames (2) to move.

2. The tensile test device after the production of a plastic pipe according to claim 1, wherein, The clamping mechanism includes: Clamping blocks (3), two of the clamping blocks (3) are provided, and both of the two clamping blocks (3) are arranged on the moving frame (2), and limiting grooves are opened on both of the two clamping blocks (3); Support shafts (4), the support shafts (4) are fixedly connected to the moving frame (2), and through holes are opened on the support shafts (4); Heating wires (5), the heating wires (5) are arranged in the through holes; Driving assembly, which is arranged on the moving frame (2) for driving the two clamping blocks (3) to move relatively.

3. The tensile test device for plastic pipes after production according to claim 2, characterized in that, The driving assembly includes: Fixed frames (6), two of the fixed frames (6) are provided, and both of the two fixed frames (6) are fixedly connected to the moving frame (2); Rack bars (7), two of the rack bars (7) are provided, and the two rack bars (7) are respectively slidably arranged in the two fixed frames (6), and the two rack bars (7) are respectively fixedly connected to the two clamping blocks (3); Driving gears (8), two of the driving gears (8) are provided, and the two driving gears (8) are respectively rotatably arranged in the two fixed frames (6), and the two driving gears (8) are respectively meshed with the two rack bars (7); Driving rods (9), two of the driving rods (9) are provided, and the two driving rods (9) are respectively fixedly connected to the two driving gears (8), and sliding grooves are opened on both of the two driving rods (9); Transmission assembly, which is arranged on the moving frame (2) for driving the two driving rods (9) to swing.

4. The tensile test device after the production of a plastic pipe according to claim 3, characterized in that, The transmission assembly includes: Sliders (10), two of the sliders (10) are provided, two moving grooves are opened on the moving frame (2), and the two sliders (10) are respectively slidably arranged in the two sliding grooves; Driving frames (11), two of the driving frames (11) are provided, and the two driving frames (11) are respectively fixedly connected to the two sliders (10), and the two driving rods (9) are respectively slidably and rotatably arranged on the two driving frames (11); Power assembly, which is arranged on the moving frame (2) for driving the two sliders (10) to move relatively.

5. The tensile test device after the production of a plastic pipe according to claim 4, characterized in that, The power assembly includes: Bidirectional screw (12), the bidirectional screw (12) is rotatably arranged on the moving frame (2), screw holes are opened on both of the two sliders (10), and the two bidirectional screws (12) are respectively threadedly connected in the two screw holes; A first motor (13), the first motor (13) is arranged on the moving frame (2), and the output end of the first motor (13) is fixedly connected to the bidirectional screw (12).

6. The tensile test device for plastic pipes after production according to claim 5, characterized in that, The cooling mechanism includes: A water tank (14), the water tank (14) is arranged inside the frame (1); A water pump (15), the water pump (15) is arranged on the frame (1), and the input end of the water pump (15) is communicated with the water tank (14); A delivery pipe (16), the delivery pipe (16) is communicated at the output end of the water pump (15); Spray heads (17), there are multiple spray heads (17), and the multiple spray heads (17) are all communicated on the delivery pipe (16).

7. The tensile test device for plastic pipes after production according to claim 6, characterized in that, The moving mechanism includes: A relative screw (18), the relative screw (18) is rotatably arranged on the frame (1), screw holes are formed on both of the two moving frames (2), and the relative screw (18) is threadedly connected between the two screw holes; A second motor (19), the second motor (19) is arranged on the frame (1), and the output end of the second motor (19) is fixedly connected to the relative screw (18).

8. The tensile test device for plastic pipes after production according to claim 7, characterized in that, Two sliding rods (20) are fixedly connected to the frame (1), two sliding holes are formed on both of the two moving frames (2), and the two sliding rods (20) are respectively slidably arranged between each pair of opposite sliding holes.

9. The tensile test device for plastic pipes after production according to claim 8, characterized in that, Two guiding bars (21) are fixedly connected inside the fixed frame (6), two guiding grooves are formed on the toothed plate (7), and the two guiding bars (21) are respectively slidably arranged in the two guiding grooves.

10. The tensile test device for plastic pipes after production according to claim 9, characterized in that, The support shaft (4) is tapered and matches the limit grooves on the two clamping blocks (3).

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