Thermoplastic polyurethane (TPU) pipe fixed-distance cutting device

Abstract

The utility model discloses a TPU pipe fixed-distance cutting device which comprises a rack, a pipe conveying mechanism, a pipe fixed-length limiting mechanism and a pipe cutting mechanism, and a pipe conveying platform and a pipe fixed-length platform are arranged on the rack; the pipe conveying mechanism is installed on the pipe conveying platform, at least one pipe conveying channel is arranged on the pipe conveying mechanism, and pipes are suitable for being driven by the pipe conveying mechanism to be conveyed from the pipe conveying platform to the pipe length fixing platform through the pipe conveying channel; the pipe fixed-length limiting mechanism is installed on the pipe fixed-length platform, at least one movable contact limiting assembly is arranged on the pipe fixed-length limiting mechanism, and the pipe fixed-length limiting mechanism is suitable for driving the movable contact limiting assemblies to move on the pipe fixed-length platform in the pipe moving direction. And the pipe fixed-length platform abuts against the pipe to limit the length of the pipe on the pipe fixed-length platform. The fixed-distance cutting device can realize fixed-distance cutting of the TPU pipe.

Description

Technical Field

[0001] The utility model relates to a TPU tube fixed-distance cutting device, belonging to the technical field of tube processing. Background Art

[0002] At present, TPU (thermoplastic polyurethane) is a plastic material with excellent mechanical properties and wear resistance, as well as excellent oil resistance, oxygen resistance and ozone resistance. Therefore, it is widely used in many fields.

[0003] After searching the prior art, it was found that a Chinese patent with publication number CN216422683U disclosed a two-pronged fixed-length shearing device. In this patent, a meter wheel was used to measure the length of the pipe. During use, it was found that the deviation of the meter wheel was large and the length measurement was not very convenient. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a TPU tube fixed-distance cutting device, which can realize the fixed-distance cutting of the TPU tube.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a TPU tube fixed-distance cutting device, comprising:

[0006] A frame, wherein the frame is provided with a pipe conveying platform and a pipe length fixing platform;

[0007] A pipe conveying mechanism, the pipe conveying mechanism is installed on the pipe conveying platform, the pipe conveying mechanism is provided with at least one pipe conveying channel, and the pipe is suitable for being driven by the pipe conveying mechanism to be conveyed from the pipe conveying platform to the pipe fixed-length platform through the pipe conveying channel;

[0008] A pipe length-fixing limiting mechanism, the pipe length-fixing limiting mechanism is installed on the pipe length-fixing platform, and at least one movable contact limiting component is provided on the pipe length-fixing limiting mechanism. The pipe length-fixing limiting mechanism is suitable for driving the movable contact limiting component to move along the pipe moving direction on the pipe length-fixing platform, and abut against the pipe to limit the length of the pipe on the pipe length-fixing platform;

[0009] The pipe cutting mechanism is installed between the pipe conveying mechanism and the pipe fixed-length limiting mechanism and is located on the pipe conveying platform. The pipe cutting mechanism is suitable for cutting off the corresponding section of the pipe on the pipe fixed-length platform when the pipe is conveyed by the pipe conveying mechanism to abut the movable contact limiting component.

[0010] Furthermore, a specific structure of a pipe conveying mechanism is provided, and the pipe conveying mechanism comprises:

[0011] The frame also includes a fixing frame, which is mounted on the pipe conveying platform;

[0012] at least one guide rod, the guide rod being vertically mounted on the fixing frame;

[0013] at least one movable base, the movable base being slidably disposed on the guide rod;

[0014] A conveying driving source, the conveying driving source is fixed on the pipe conveying platform, and the conveying driving source is provided with a driving rotating end;

[0015] At least one load-bearing conveying assembly, the load-bearing conveying assembly is mounted on the fixed frame, and the load-bearing conveying assembly is suitable for being connected to the driving rotating end;

[0016] at least one mating conveying assembly mounted on the mobile base;

[0017] The load-bearing conveying component is suitable for cooperating with the cooperating conveying component to form the pipe conveying channel.

[0018] Furthermore, a specific structure of a load-bearing conveying assembly is provided, and the load-bearing conveying assembly comprises:

[0019] A driving wheel and a driven wheel, wherein the driving wheel and the driven wheel are rotatably mounted on the fixed frame, and the central axis of the driving wheel is connected to the driving rotating end of the conveying driving source;

[0020] A driving conveyor belt is wound around the outer circumference of the driving wheel and the driven wheel.

[0021] Furthermore, a specific structure of a matching conveying assembly is provided, and the matching conveying assembly comprises:

[0022] a pair of driven pulleys, the pair of driven pulleys being rotatably mounted on the moving base;

[0023] A synchronous transmission belt is wound around the outer circumferences of the pair of driven pulleys.

[0024] Further, the guide rod and the carrying conveying assembly are each provided with at least one pair, and the mobile base is provided with a pair corresponding to the matching conveying assembly;

[0025] A pair of the matching conveying components are respectively fixed on the corresponding moving bases;

[0026] The pair of the carrying conveying components are suitable for forming a pair of the pipe conveying channels with the corresponding pair of the matching conveying components respectively.

[0027] Furthermore, in order to limit the moving range of the movable base, a limit baffle is fixed to the upper end of the guide rod, and a through hole is opened on the limit baffle;

[0028] The movable base is provided with a limit rod, and the limit rod extends out of the limit baffle from the through hole of the limit baffle;

[0029] An upper limit projection is provided at the end of the limit rod, and the upper limit projection is located above the limit baffle. The upper limit projection is suitable for limiting the moving range of the movable base on the guide rod.

[0030] Furthermore, in order to facilitate the cooperation between the conveying assembly and the load-bearing conveying assembly, the pipe conveying mechanism also includes at least one spring, which is sleeved on the guide rod, one end of the spring abuts against the limit baffle, and the other end abuts against the movable base.

[0031] Furthermore, a specific structure of a tube cutting mechanism is provided, and the tube cutting mechanism comprises:

[0032] A cutter mounting frame, wherein the cutter mounting frame is mounted on the pipe conveying platform;

[0033] at least one telescopic actuator, the telescopic actuator being mounted on the cutter mounting frame, the telescopic actuator being provided with a telescopic end;

[0034] a pair of slide rails, the slide rails being vertically mounted on the cutter mounting frame;

[0035] A pair of movable blocks, wherein the pair of movable blocks are slidably arranged on the corresponding slide rails;

[0036] A cutter mounting seat, the cutter mounting seat is mounted on a pair of the movable blocks, and the cutter mounting seat is connected to the telescopic end of the telescopic actuator;

[0037] A pipe cutting knife, the pipe cutting knife is mounted on the cutting knife mounting seat;

[0038] The telescopic actuator is suitable for driving the pipe cutting knife to move along the moving direction of the slide rail through the cutter mounting seat.

[0039] Furthermore, in order to facilitate the collection of finished products, the TPU tube fixed-length cutting device also includes a finished product collection box, and the finished product collection box is arranged on one side of the tube fixed-length platform.

[0040] Furthermore, a specific structure of a pipe fixed length limiting mechanism is provided, and the pipe fixed length limiting mechanism comprises:

[0041] A driving source, the driving source is installed on the pipe fixed-length platform, and the driving source is provided with an output end;

[0042] A transmission screw rod, the transmission screw rod is rotatably mounted on the pipe fixed-length platform, and one end of the transmission screw rod is connected to the output end of the driving source;

[0043] A sliding seat, the sliding seat being threadedly connected to the transmission screw;

[0044] The pipe fixed-length platform is provided with a long through hole;

[0045] The movable contact limiting assembly passes through the long through hole of the pipe fixed-length platform and is connected with the sliding seat.

[0046] By adopting the above technical solution, the utility model has the following beneficial effects:

[0047] In the utility model, a pair of pipes are first placed into a pair of pipe conveying channels provided by the pipe conveying mechanism. Then, the pipe fixed length limiting mechanism is activated to adjust the position of a pair of movable contact limiting components on the pipe fixed length platform to set the required pipe cutting length. After that, the pipe conveying mechanism is activated, and the pair of pipes are immediately guided to the pipe fixed length platform. When each pipe contacts the corresponding movable contact limiting component, the pipe cutting mechanism is activated to achieve accurate cutting of the corresponding sections of the pair of pipes on the pipe fixed length platform.

[0048] In addition, a pair of matching conveying components can move smoothly on the guide rod along with the mobile base, and cooperate with a pair of bearing conveying components to form a pair of flexible pipe conveying channels. This design can adapt to pipes of different diameters, greatly improving the scope of application. A spring is also provided on the guide rod to ensure the cooperation between the pair of bearing conveying components and the pair of matching conveying components.

[0049] In summary, the utility model can process a pair of pipes with different diameters at the same time and cut them to different lengths as required, thereby greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 The three-dimensional structure of the TPU tube fixed-distance cutting device of the utility model is shown in FIG. Figure 1 ;

[0051] Figure 2 The three-dimensional structure of the TPU tube fixed-distance cutting device of the utility model is shown in FIG. Figure 2 ;

[0052] Figure 3 It is a three-dimensional structural schematic diagram of the tube conveying mechanism of the TPU tube fixed-distance cutting device of the utility model;

[0053] Figure 4 It is a partial three-dimensional structural schematic diagram of the TPU tube fixed-distance cutting device of the utility model. DETAILED DESCRIPTION

[0054] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0055] like Figure 1-4 As shown, a TPU tube fixed-distance cutting device comprises:

[0056] A frame 1, on which a pipe conveying platform 12 and a pipe length-fixing platform 13 are provided;

[0057] The pipe conveying mechanism is installed on the pipe conveying platform 12. The pipe conveying mechanism is provided with a pair of pipe conveying channels. The pipe 2 is suitable for being driven by the pipe conveying mechanism to be conveyed from the pipe conveying platform to the pipe fixed-length platform through the pipe conveying channels;

[0058] The pipe length-limiting mechanism is installed on the pipe length-limiting platform 13. A pair of movable contact limiting components 31 are provided on the pipe length-limiting mechanism. The pipe length-limiting mechanism is suitable for driving the movable contact limiting components 31 to move along the moving direction of the pipe 2 on the pipe length-limiting platform 13 and abut against the pipe to limit the length of the pipe on the pipe length-limiting platform 13.

[0059] The pipe cutting mechanism is installed between the pipe conveying mechanism and the pipe fixed-length limiting mechanism, and is located on the pipe conveying platform 12. The pipe cutting mechanism is suitable for cutting off the corresponding section of the pipe on the pipe fixed-length platform 13 when the pipe 2 is conveyed by the pipe conveying mechanism to abut the corresponding movable contact limiting component 31.

[0060] In this embodiment, if Figure 1-2 and Figure 4 As shown, firstly, a pair of pipes 2 are placed into a pair of pipe conveying channels provided by the pipe conveying mechanism. Then, the pipe fixed length limiting mechanism is activated to adjust the position of a pair of movable contact limiting components 31 on the pipe fixed length platform 13, and set to the required cutting length of the pipe 2. After that, the pipe conveying mechanism is activated, and the pair of pipes 2 are immediately guided to the pipe fixed length platform 13. When each pipe 2 contacts the corresponding movable contact limiting component 31, the pipe cutting mechanism is activated to achieve accurate cutting of the corresponding sections of a pair of pipes 2 on the pipe fixed length platform 13.

[0061] During use, a contact sensor can be installed on the movable contact limit assembly 31. When both contact sensors detect, a signal is sent out, and the pipe cutting mechanism starts cutting according to the signal.

[0062] Specifically, Figure 1-2 and Figure 4 As shown, the frame 1 further includes a fixing frame 421, and the fixing frame 421 is installed on the pipe conveying platform 12;

[0063] The pipe conveying mechanism may have the following structure, including:

[0064] A pair of guide rods 431, the guide rods 431 are vertically mounted on the fixing frame 421;

[0065] A movable base 432, the movable base 432 is slidably disposed on the guide rod 431;

[0066] A conveying driving source 41, the conveying driving source 41 is fixed on the pipe conveying platform 12, and the conveying driving source 41 is provided with a driving rotating end;

[0067] A load-carrying conveying assembly 42, which is mounted on the pipe conveying platform 12, and is suitable for being connected to the driving rotating end;

[0068] Cooperating with the conveying assembly 43, the conveying assembly 43 is mounted on the mobile base 432;

[0069] The carrying conveying component 42 is adapted to cooperate with the cooperating conveying component 43 to form a pipe conveying channel.

[0070] In this embodiment, if Figure 1-2 As shown, the conveying drive source 41 can be a motor, and the matching conveying component 43 cooperates with the corresponding carrying conveying component 42 to form a pipe conveying channel. The pipe 2 is clamped between the matching conveying component 43 and the corresponding carrying conveying component 42, and is conveyed under the drive of the carrying conveying component 42.

[0071] Specifically, Figure 2-3 As shown, the load-carrying conveying assembly 42 may be of the following structure, including:

[0072] The driving wheel and the driven wheel are both rotatably mounted on a fixed frame 421, and the central axis of the driving wheel is connected to the driving rotating end of the conveying driving source 41;

[0073] The active conveyor belt 422 is wound around the outer circumference of the active wheel and the driven wheel.

[0074] In this embodiment, if Figure 2-3 As shown, the conveying driving source 41 drives the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate through the driving conveying belt 422.

[0075] Specifically, Figure 2-3 As shown, the cooperation conveying component 43 may be the following structure, including:

[0076] a pair of driven pulleys, the pair of driven pulleys being rotatably mounted on the mobile base 432;

[0077] Synchronous transmission belt, the synchronous transmission belt is wound around the outer circumference of a pair of driven pulleys.

[0078] In this embodiment, if Figure 2-4 As shown, a pair of guide rods 431 are vertically mounted on the pipe conveying platform 12 to provide guidance for the vertical sliding of the movable base 432. The movable base 432 is slidably arranged along the guide rods 431, so that the matching conveying assembly 43 can be adjusted up and down. There are two matching conveying assemblies 43.

[0079] A pair of matching conveying components 43 are fixedly mounted on the same movable base 432 , and a pair of pipe conveying channels are formed between them and a pair of corresponding carrying conveying components 42 .

[0080] This design enables the matching conveying component 43 to adjust the opening spacing relative to the fixed carrying conveying component 42 to accommodate pipes 2 of different diameters.

[0081] Specifically, Figure 3 As shown, a limit baffle 4311 is also fixed to the upper end of the guide rod 431, and a through hole is opened on the limit baffle 4311;

[0082] A limit rod 4321 is disposed on the movable base 432, and the limit rod 4321 extends out of the limit baffle 4311 from the through hole of the limit baffle 4311;

[0083] An upper limit protrusion is provided at the end of the limiting rod 4321 . The upper limit protrusion is located above the limiting baffle 4311 . The upper limit protrusion is suitable for limiting the moving range of the movable base 432 on the guide rod 431 .

[0084] In this embodiment, if Figure 3 As shown, when the movable base 432 slides up and down along the guide rod 431, the upper limit protrusion will contact the upper surface of the limit baffle 4311, thereby limiting the maximum sliding stroke of the movable base 432. For example, when not in use, the upper limit protrusion will abut against the limit baffle 4311, ensuring the pipe conveying channel formed by the carrying conveying component 42 and the corresponding matching conveying component 43.

[0085] Specifically, Figure 3 As shown, the pipe conveying mechanism also includes a spring, which is sleeved on the guide rod 431 , one end of the spring abuts against the limit baffle 4311 , and the other end abuts against the moving base 432 .

[0086] In this embodiment, if Figure 1-3As shown, the spring provides an elastic pressing force from the matching conveying assembly to the bearing conveying assembly 42. There are two springs, which are respectively arranged on two guide rods 431. When the mobile base 432 slides along the guide rods 431, the spring will be compressed, thereby generating an elastic pressing force on the matching conveying assembly toward the bearing conveying assembly 42. This pressing force can keep a pair of matching conveying assemblies 43 and the active conveyor belt 422 in a certain clamping state, ensuring that the pipe 2 will not fall out of the conveying channel during the conveying process.

[0087] Specifically, Figure 1-2 and Figure 4 As shown, the tube cutting mechanism may have the following structure, including:

[0088] A cutter mounting frame 51, the cutter mounting frame 51 is mounted on the pipe conveying platform 12;

[0089] Two telescopic actuators 52, the telescopic actuators 52 are mounted on the cutter mounting frame 51, and the telescopic actuators 52 are provided with telescopic ends;

[0090] a pair of slide rails 53, the slide rails 53 are vertically mounted on the cutter mounting frame 51;

[0091] A pair of movable blocks 54, the pair of movable blocks 54 are slidably disposed on corresponding slide rails 53;

[0092] A cutter mounting seat 55, the cutter mounting seat 55 is mounted on a pair of movable blocks 54, and the cutter mounting seat 55 is connected to the telescopic end of the telescopic actuator 52;

[0093] A pipe cutting knife 56, the pipe cutting knife 56 is mounted on a cutting knife mounting seat 55;

[0094] The telescopic actuator 52 is suitable for driving the pipe cutting knife 56 to move along the moving direction of the slide rail 53 through the cutter mounting seat 55.

[0095] In this embodiment, if Figure 1-2 As shown, the telescopic actuator 52 can be a cylinder or an electric push rod, etc. By adjusting the stroke of the telescopic actuator 52, the cutting depth can be controlled to meet the cutting requirements of pipes 2 of different specifications. In actual use, when the pipe conveying mechanism conveys the pipe 2 to the predetermined position, the telescopic actuator 52 is driven to work, driving the cutter mounting seat 55 to move downward, and the pipe cutter 56 can cut the pipe 2. After the cutting action is completed, the telescopic actuator 52 moves in the reverse direction to reset the cutter mounting seat 55 and the pipe cutter 56 to prepare for the next cutting.

[0096] Specifically, Figure 1 and Figure 4 As shown, the TPU tube fixed-length cutting device also includes a finished product collection box 6, and the finished product collection box 6 is arranged on one side of the tube fixed-length platform 13.

[0097] In this embodiment, if Figure 1-2 and Figure 4 Shown, the finished product collection box 6 is used to collect and temporarily store the cut pipe finished products. Four universal wheels are also provided at the bottom of the finished product collection box 6.

[0098] Specifically, Figure 1-2 and Figure 4 As shown, the pipe fixed length limiting mechanism can be the following structure, including:

[0099] A driving source 61, which is installed on the pipe length-fixing platform 13 and has an output end;

[0100] A transmission screw 62, which is rotatably mounted on the pipe length-fixing platform 13, and one end of the transmission screw 62 is connected to the output end of the driving source 61;

[0101] A sliding seat 63, wherein the sliding seat 63 is threadedly connected to the transmission screw rod 62;

[0102] The pipe fixed length platform 13 is provided with a long through hole;

[0103] The movable contact limiting assembly 31 passes through the long through hole of the pipe length-fixing platform 13 and is connected to the sliding seat 63 .

[0104] In this embodiment, if Figure 2 and Figure 4 As shown, the driving source 61 can be a motor. When the driving source 61 is working, it will drive the transmission screw 62 to rotate. Since the sliding seat 63 and the transmission screw 62 are threaded together, the rotating transmission screw 62 will drive the sliding seat 63 to make a linear motion in the moving direction of the pipe 2. The moving contact limit assembly 31 connected to the sliding seat 63 will also move in the same way. The ideal displacement can be obtained by accurately controlling the rotation of the transmission screw 62 by the driving source 61. At the same time, the threaded cooperation between the transmission screw 62 and the sliding seat 63 can also effectively prevent the moving contact limit assembly 31 from accidentally moving.

[0105] In actual use, the driving source 61 is controlled to drive the movable contact stopper assembly 31 to move to the corresponding end position according to the length of the pipe to be cut. When the pipe 2 is transported to this position, it will be restricted by the movable contact stopper assembly 31 and cannot move forward. Then the pipe cutting mechanism cuts the pipe 2 to obtain a pipe section of the required length. By adjusting the rotation of the driving source 61, the required pipe length can be easily changed.

[0106] Specifically, the TPU tube fixed-distance cutting device further includes a pushing mechanism, and the pushing mechanism can be the following structure:

[0107] A driving source is pushed and installed on a pipe fixed-length platform;

[0108] A push rod connected to a push driving source;

[0109] The driving source is suitable for driving the push rod to push the cut pipe off the pipe fixed-length platform.

[0110] In this embodiment, if Figure 1-2 and Figure 4 As shown, the pushing mechanism is used to push the cut pipe section away from the pipe fixed length platform 13 and drop it into the finished product collection box 6. The pushing drive source can be various actuators that can generate linear reciprocating motion, such as a cylinder and an electric push rod.

[0111] When the pipe cutting mechanism completes the cutting of the pipe 2, the driving source starts to work, driving the push rod to push the cut pipe section. The push rod continues to move and the pipe section is smoothly pushed away from the pipe fixed length platform 13, so that it falls into the subsequent finished product collection box 6.

[0112] Example 2

[0113] This embodiment is basically the same as Embodiment 1, except that:

[0114] The carrying conveying assembly 42 is provided with a pair, the guide rods 431 are provided with two pairs, and the movable base 432 is provided with a pair corresponding to the matching conveying assembly 43;

[0115] A pair of matching conveying components 43 are respectively fixed on corresponding moving bases 432;

[0116] The pair of carrying conveying components 42 are suitable for forming a pair of pipe conveying channels with the corresponding pair of matching conveying components 43 respectively.

[0117] Two pairs of guide rods 431 are vertically mounted on the pipe conveying platform 12, providing a sliding track for each of the two matching conveying components 43. A pair of movable bases 432 are respectively slidably mounted on the corresponding guide rods 431, and can relatively independently adjust the opening width of the pipe conveying channel. A pair of matching conveying components are respectively fixed on the corresponding movable bases 432.

[0118] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A TPU tube fixed-distance cutting device, characterized in that: include: A frame (1), wherein the frame (1) is provided with a pipe conveying platform (12) and a pipe length fixing platform (13); a pipe conveying mechanism, the pipe conveying mechanism being mounted on the pipe conveying platform (12), the pipe conveying mechanism being provided with at least one pipe conveying channel, the pipe (2) being adapted to be driven by the pipe conveying mechanism through the pipe conveying channel and conveyed from the pipe conveying platform to the pipe fixed-length platform; A pipe length-fixing limit mechanism, the pipe length-fixing limit mechanism being mounted on the pipe length-fixing platform (13), the pipe length-fixing limit mechanism being provided with at least one movable contact limit component (31), the pipe length-fixing limit mechanism being adapted to drive the movable contact limit component (31) to move on the pipe length-fixing platform (13) along a moving direction of the pipe (2), and to abut against the pipe to limit the length of the pipe on the pipe length-fixing platform (13); A pipe cutting mechanism, the pipe cutting mechanism is installed between the pipe conveying mechanism and the pipe fixed-length limiting mechanism, and is located on the pipe conveying platform (12). The pipe cutting mechanism is suitable for cutting off the corresponding section of the pipe on the pipe fixed-length platform (13) when the pipe (2) is conveyed by the pipe conveying mechanism to abut against the movable contact limiting component (31).

2. The TPU tube fixed-distance cutting device according to claim 1, characterized in that: The frame (1) further comprises a fixing frame (421), wherein the fixing frame (421) is installed on the pipe conveying platform (12); The pipe conveying mechanism comprises: at least one guide rod (431), the guide rod (431) being vertically mounted on the fixing frame (421); at least one movable base (432), the movable base (432) being slidably disposed on the guide rod (431); A conveying driving source (41), wherein the conveying driving source (41) is fixed on the pipe conveying platform (12), and the conveying driving source (41) is provided with a driving rotating end; at least one load-bearing conveying assembly (42), the load-bearing conveying assembly (42) being mounted on the fixed frame (421), the load-bearing conveying assembly (42) being suitable for being connected to the driving rotating end; At least one matching conveying assembly (43), wherein the matching conveying assembly (43) is mounted on the movable base (432); The load-bearing conveying component (42) is suitable for cooperating with the cooperating conveying component (43) to form the pipe conveying channel.

3. The TPU tube fixed-distance cutting device according to claim 2, characterized in that: The load-carrying conveying assembly (42) comprises: A driving wheel and a driven wheel, wherein the driving wheel and the driven wheel are both rotatably mounted on the fixing frame (421), and the central axis of the driving wheel is connected to the driving rotating end of the conveying driving source (41); A driving conveyor belt (422), wherein the driving conveyor belt (422) is wound around the outer circumference of the driving wheel and the driven wheel.

4. The TPU tube fixed-distance cutting device according to claim 2, characterized in that: The mating conveying assembly (43) comprises: a pair of driven pulleys, the pair of driven pulleys being rotatably mounted on the moving base (432); A synchronous transmission belt is wound around the outer circumferences of the pair of driven pulleys.

5. The TPU tube cutting device according to claim 2, characterized in that: The guide rods (431) and the carrying conveying assembly (42) are each provided with at least one pair, and the movable base (432) is provided with a pair corresponding to the matching conveying assembly (43); A pair of the matching conveying components (43) are respectively fixed on the corresponding movable bases (432); The pair of carrying conveying components (42) are suitable for respectively forming a pair of pipe conveying channels with a corresponding pair of matching conveying components (43).

6. The TPU tube fixed-distance cutting device according to claim 2, characterized in that: A limit baffle (4311) is also fixed to the upper end of the guide rod (431), and a through hole is formed on the limit baffle (4311); The movable base (432) is provided with a limiting rod (4321), and the limiting rod (4321) extends out of the limiting baffle (4311) from a through hole of the limiting baffle (4311); An upper limit protrusion is provided at the end of the limiting rod (4321), the upper limit protrusion is located above the limiting baffle (4311), and the upper limit protrusion is suitable for limiting the movement range of the movable base (432) on the guide rod (431).

7. The TPU tube fixed-distance cutting device according to claim 6, characterized in that: The pipe conveying mechanism further comprises at least one spring, the spring being sleeved on the guide rod (431), one end of the spring abutting against the limit baffle (4311), and the other end abutting against the movable base (432).

8. The TPU tube cutting device according to claim 1, characterized in that: The tube cutting mechanism comprises: A cutter mounting frame (51), wherein the cutter mounting frame (51) is mounted on the pipe conveying platform (12); at least one telescopic actuator (52), the telescopic actuator (52) being mounted on the cutter mounting frame (51), the telescopic actuator (52) being provided with a telescopic end; a pair of slide rails (53), the slide rails (53) being vertically mounted on the cutter mounting frame (51); a pair of movable blocks (54), wherein the pair of movable blocks (54) are slidably disposed on corresponding slide rails (53); a cutter mounting seat (55), the cutter mounting seat (55) being mounted on a pair of movable blocks (54), the cutter mounting seat (55) being connected to the telescopic end of the telescopic actuator (52); A pipe cutting knife (56), wherein the pipe cutting knife (56) is mounted on the cutting knife mounting seat (55); The telescopic actuator (52) is suitable for driving the pipe cutting knife (56) to move along the moving direction of the slide rail (53) via the cutter mounting seat (55).

9. The TPU tube cutting device according to claim 1, characterized in that: It also comprises a finished product collection box (6), wherein the finished product collection box (6) is arranged on one side of the pipe fixed-length platform (13).

10. The TPU tube cutting device according to claim 1, characterized in that: The pipe fixed length limiting mechanism comprises: A driving source (61), the driving source (61) being mounted on the pipe length-fixing platform (13), and the driving source (61) being provided with an output end; a transmission screw rod (62), the transmission screw rod (62) being rotatably mounted on the pipe fixed-length platform (13), and one end of the transmission screw rod (62) being connected to an output end of the driving source (61); A sliding seat (63), the sliding seat (63) being threadedly connected to the transmission screw rod (62); The pipe fixed-length platform (13) is provided with a long through hole; The movable contact limiting assembly (31) passes through the long through hole of the pipe length-fixing platform (13) and is connected to the sliding seat (63).

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