Feeding mechanism for pipe body thermoforming machine

Abstract

The invention relates to the technical field of machining equipment, and particularly provides a feeding mechanism for a pipe body thermoforming machine, which comprises a machine body, a feeding mechanism, a feeding mechanism and a discharging mechanism, the first clamping assembly is installed in the machine body in a sliding mode, and part of the first clamping assembly extends out of the machine body. When the machine body and the first clamping assembly move in the first direction under the action of external acting force, the process that the feeding mechanism for the pipe body thermoforming machine passes through the second working state from the first working state and then is converted into the third working state is the feeding process of the pipe body; due to the fact that the limiting driving assembly is fixed relative to the machine body and the first clamping assembly, the limiting driving assembly makes contact with the first clamping assembly and provides acting force for the first clamping assembly, the first clamping assembly clamps the pipe body to move along the first direction in the process of moving along the first direction, and one end of the pipe body enters the mold.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing equipment, and in particular to a feeding mechanism for a tube thermoforming machine. Background Art

[0002] The hot forming extrusion of large-diameter bimetallic composite pipes is a new technology. The difficulty of this technology lies in the feeding of the composite pipe before extrusion. The traditional small-diameter cold steel pipe forming extrusion feeding adopts cylinder or oil cylinder drive to achieve the purpose of clamping the steel pipe, but in the hot state, the working state of the cylinder is very unstable, and the oil cylinder has a great safety hazard. Summary of the invention

[0003] 1. Technical issues to be resolved In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a feeding mechanism for a tube hot forming machine, which solves the technical problem that the traditional cold steel tube forming extrusion feeding adopts a cylinder or oil cylinder drive to achieve the purpose of clamping the steel tube, but in the hot state, the working state of the cylinder is very unstable, and the oil cylinder has a safety hazard.

[0004] (II) Technical solution In order to achieve the above object, the main technical solutions adopted by the present invention include: An embodiment of the present invention provides a feeding mechanism for a tube thermoforming machine.

[0005] An embodiment of the present invention provides a feeding mechanism for a tube thermoforming machine, comprising: A machine body, wherein a bearing hole for bearing the pipe is formed through the machine body; A first clamping assembly, the first clamping assembly is slidably mounted in the body, and a portion of the first clamping assembly extends to the outside of the body; A limit drive assembly, which is arranged on the outside of the machine body; Among them, when the body moves along the first direction and the part of the first clamping component located outside the body contacts the limit driving component, the first clamping component clamps the pipe, and when the body moves along the second direction and the part of the first clamping component located outside the body contacts the limit driving component, the first clamping component releases the pipe.

[0006] Optionally, the limit drive assembly includes: A limit seat, wherein the limit seat is formed with a sliding groove in the direction toward the machine body; A limit block, the limit block is slidably installed in the sliding groove; The elastic member is arranged between the limit block and the sliding groove, and is used for applying a force on the limit block in the direction of the machine body.

[0007] Optionally, the limit drive assembly further includes: The adjusting mechanism is arranged between the limiting seat and the limiting block and is used for adjusting the position of the limiting block in the sliding groove.

[0008] Optionally, the adjustment mechanism comprises: A moving rod, one end of which is fixedly mounted on the end surface of the limit block away from the machine body, and the other end of which slides through the side wall of the limit seat; A locking nut is threadably mounted on the moving rod, and the locking nut is located outside the limiting seat.

[0009] Optionally, the body comprises: Machine base; A machine cover, which is detachably mounted on the machine base, and a bearing hole is provided between the machine base and the machine cover; Wherein, inclined grooves are formed in the machine body and on both sides of the bearing hole, and the first clamping assembly is slidably installed in the inclined grooves.

[0010] Optionally, the limit drive assembly includes: The slider is slidably installed in the inclined groove, and part of the slider extends to the outside of the machine body.

[0011] Optionally, the first clamping assembly further comprises: The clamping block is detachably mounted on the surface of the slide block close to the pipe.

[0012] Optionally, the end surface of the limiting block close to the body is an arc-shaped surface.

[0013] Optionally, the feeding mechanism for the tube thermoforming machine further comprises: A driving cylinder is installed on the machine body and is used to drive the machine body to move in a first direction or a second direction.

[0014] Optionally, the end of the slider that contacts the limit drive assembly is an arc-shaped end.

[0015] (III) Beneficial effects The beneficial effects of the present invention are as follows: the feeding mechanism for a tube thermoforming machine of the present invention comprises a machine body, a first clamping assembly and a limit drive assembly. When the machine body and the first clamping assembly are subjected to an external force and move along a first direction, the feeding mechanism for the tube thermoforming machine is converted from a first working state to a third working state after passing through a second working state, which is the feeding process of the tube. During the feeding process of the tube, since the limit drive assembly is fixed relative to the machine body and the first clamping assembly, the limit drive assembly contacts the first clamping assembly and provides a force to the first clamping assembly, so that the first clamping assembly During the movement along the first direction, the clamped tube body moves along the first direction together, so that the tube body contacts the mold and one end of the tube body enters the mold. Compared with the structure in the prior art that a cylinder or oil cylinder is separately set to drive the first clamping assembly to work, by setting a limit drive assembly, the first clamping assembly can clamp the tube body in the process of following the movement of the machine body, thereby realizing the feeding process of the tube body and effectively avoiding the unstable operation of the cylinder or oil cylinder in a hot state. At the same time, it also greatly reduces the cost, improves the work efficiency, and improves the reliability of the feeding mechanism of the tube body thermoforming machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front structural schematic diagram of an embodiment of a feeding mechanism for a tube thermoforming machine of the present invention; Figure 2 It is a side structural schematic diagram of an embodiment of a feeding mechanism for a tube thermoforming machine of the present invention; Figure 3 It is a top view of the structure of an embodiment of a feeding mechanism for a tube thermoforming machine of the present invention; Figure 4 It is a schematic diagram of a top view and cross-section structure of a first working state of an embodiment of a feeding mechanism for a tube thermoforming machine of the present invention; Figure 5 It is a schematic diagram of a top view and cross-section of the second working state of an embodiment of the feeding mechanism for a tube thermoforming machine of the present invention; Figure 6 It is a schematic diagram of a top view and cross-section structure of a third working state of an embodiment of a feeding mechanism for a tube thermoforming machine of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the body of an embodiment of the feeding mechanism for a tube thermoforming machine of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of a machine cover of an embodiment of a feeding mechanism for a tube thermoforming machine of the present invention; Fig. 9 It is a schematic diagram of the top view of the structure of the pipe feeding machine of the comparative example.

[0017] [Description of Reference Numerals] 100-machine body, 200-first clamping assembly, 300-limiting driving assembly, 400-driving cylinder, 500-tube body, 600-mold, 700-tube body feeding machine; 110-machine base, 120-machine cover; 210-slider, 220-clamping block; 310-limiting seat, 320-limiting block, 330-elastic member, 340-adjusting mechanism; 710-support body, 720-driving cylinder, 730-moving plate, 740-second clamping assembly; 341-moving rod, 342-locking nut; 101-bearing hole, 102-inclined groove, 301-sliding groove, 703-driving groove. DETAILED DESCRIPTION

[0018] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0019] Embodiment: like Figures 1 to 8 As shown, according to an embodiment of the present application, a feeding mechanism for a tube thermoforming machine is proposed, comprising: a body 100, wherein the body 100 is penetrated by a bearing hole 101 for bearing a tube; a first clamping assembly 200, wherein the first clamping assembly 200 is slidably installed in the body 100, and a portion of the first clamping assembly 200 extends to the outside of the body 100; a limit drive assembly 300, wherein the limit drive assembly 300 is arranged on the outside of the body 100; wherein, when the body 100 moves along a first direction and a portion of the first clamping assembly 200 located outside the body 100 contacts the limit drive assembly 300, the first clamping assembly 200 clamps the tube, and when the body 100 moves along a second direction and a portion of the first clamping assembly 200 located outside the body 100 contacts the limit drive assembly 300, the first clamping assembly 200 releases the tube.

[0020] Exemplarily, the body 100 is on one side of the limit drive assembly 300 and does not contact the limit drive assembly 300. When the body 100 is driven by an external force, it moves toward the limit drive assembly 300, and this moving direction is a first direction; the body 100 is on the other side of the limit drive assembly 300 and does not contact the limit drive assembly 300. When the body 100 is driven by an external force, it moves toward the limit drive assembly 300. This moving direction is a second direction, and the second direction is opposite to the first direction.

[0021] Exemplarily, a mold 600 is provided on one side of the machine body 100, and the mold 600 is located on one side of one end of the bearing hole 101, and the mold 600 is coaxially arranged with the bearing hole 101. When the machine body 100 and the first clamping assembly 200 are on the side where the limiting drive assembly 300 is away from the mold 600, this is the first working state of the feeding mechanism for the tube thermoforming machine; when the machine body 100 moves under the action of external force and the first clamping assembly 200 contacts the limiting drive assembly 300, this is the second working state of the feeding mechanism for the tube thermoforming machine; when the machine body 100 and the first clamping assembly 200 are on the side where the limiting drive assembly 300 is close to the mold 600, this is the third working state of the feeding mechanism for the tube thermoforming machine.

[0022] The feeding mechanism for a tube thermoforming machine provided in the embodiment of the present application includes a machine body 100, a first clamping assembly 200 and a limit drive assembly 300, wherein the machine body 100 is formed with a bearing hole 101, the tube body 500 is coaxially arranged in the bearing hole 101, the first clamping assembly 200 is slidably installed in the machine body 100, and at the same time, some parts of the first clamping assembly 200 extend through the outside of the machine body 100, and the limit drive assembly 300 is arranged on the outside of the machine body 100. When the machine body 100 is subjected to an external force and moves along the first direction, it can simultaneously drive the first clamping assembly 200 to move along the first direction together. In the process of moving along the first direction, the part of the first clamping assembly 200 located outside the body 100 will contact the limit drive assembly 300. Since the limit drive assembly 300 is fixed relative to the body 100, at this time, the first clamping assembly 200 will move in the direction of the bearing hole 101, and the first clamping assembly 200 can clamp the tube body 500 in the bearing hole 101. At the same time, the body 100 is still moving along the first direction under the action of the external force. At this time, the first clamping assembly 200 can clamp the tube body 500 and move together along the first direction until the tube After the tube body 500 touches the mold 600 and is sent into a certain distance, the first clamping component 200 is separated from the limit driving component 300. When the first clamping component 200 is separated from the limit driving component 300, under the joint action of the resistance of the mold 600 to the tube body 500 and the inclined slide groove in the body 100, the first clamping component 200 still clamps the tube body 500 until the tube body 500 is sent into the mold 600 for a specific distance and is clamped and fixed by the subsequent equipment, and the first direction movement process ends; on the contrary, when the body 100 is moved in the second direction by an external force, it can simultaneously drive the second clamping component 200 to move in the second direction. A clamping component 200 moves along the second direction. At this time, the first clamping component 200 no longer generates a clamping force on the tube body 500, but due to the previous clamping force, the first clamping component 200 may fit together with the tube body 500. In the process of moving along the second direction, the part of the first clamping component 200 located outside the body 100 contacts the limit drive component 300. Since the limit drive component 300 is fixed relative to the body 100, at this time, the first clamping component 200 moves in a direction away from the bearing hole 101, and the first clamping component 200 returns to the state before clamping.

[0023] As can be seen from the above content, when the machine body 100 and the first clamping assembly 200 are moved along the first direction by the external force, the process in which the feeding mechanism of the tube thermoforming machine is converted from the first working state to the third working state after passing through the second working state is the feeding process of the tube 500. During the feeding process of the tube 500, since the limit drive assembly 300 is fixed relative to the machine body 100 and the first clamping assembly 200, the limit drive assembly 300 contacts the first clamping assembly 200 and provides a force to the first clamping assembly 200, so that the first clamping assembly 200 clamps the tube 500 during the process of moving along the first direction. They move together along the first direction, so that the tube body 500 contacts the mold 600, and one end of the tube body 500 enters the mold 600. Compared with the structure in the prior art that a cylinder or oil cylinder is separately set to drive the first clamping component 200 to work, by setting the limit drive component 300, the first clamping component 200 can clamp the tube body 500 while following the movement of the machine body 100, thereby realizing the feeding process of the tube body 500, effectively avoiding the unstable working of the cylinder or oil cylinder in a hot state, and at the same time greatly reducing the cost, improving the work efficiency, and improving the reliability of the feeding mechanism of the tube body thermoforming machine.

[0024] Exemplarily, when the machine body 100 moves along the first direction, so that the feeding mechanism of the tube thermoforming machine passes through the second working state from the first working state, the process of converting to the third working state is the feeding process of the tube 500, and the first clamping assembly 200 located on the outer part of the machine body 100 contacts the limit drive assembly 300. In this case, the first clamping assembly 200 clamps the tube 500 to prevent it from shifting or falling off during the movement; when the machine body 100 moves along the second direction, so that the feeding mechanism of the tube thermoforming machine passes through the second working state from the third working state, the process of converting to the first working state is the resetting process of the feeding mechanism of the tube thermoforming machine, and the first clamping assembly 200 located on the outer part of the machine body 100 contacts the limit drive assembly 300 again. At this time, the first clamping assembly 200 is controlled by the limit drive assembly 300, and the clamping force on the tube 500 will be relaxed, thereby allowing the tube 500 to move freely or adjust during the thermoforming process.

[0025] like Figures 1 to 8 As shown, in some examples, the above-mentioned limit drive assembly 300 includes: a limit seat 310, the above-mentioned limit seat 310 has a sliding groove 301 formed in the direction of the above-mentioned body 100; a limit block 320, the above-mentioned limit block 320 is slidably installed in the above-mentioned sliding groove 301; and an elastic member 330, the above-mentioned elastic member 330 is arranged between the above-mentioned limit block 320 and the above-mentioned sliding groove 301, and is used to apply a force to the above-mentioned limit block 320 in the direction of the above-mentioned body 100.

[0026] In this technical solution, the limit drive assembly 300 includes a limit seat 310, a limit block 320 and an elastic member 330, wherein the limit seat 310 is fixedly arranged relative to the body 100, and the limit seat 310 is formed with a sliding groove 301 in the direction of the body 100, and the limit block 320 is slidably installed in the sliding groove 301, and the limit block 320 can be limitedly moved in a direction close to or away from the body 100 through the sliding groove 301; the elastic member 330 is an elastic component arranged between the limit block 320 and the sliding groove 301. By applying a force in the direction of the body 100 to the limit block 320 through the elastic member 330, it can be ensured that the limit block 320 maintains appropriate contact pressure and stability when the body 100 moves, thereby ensuring the normal operation and limiting function of the first clamping assembly 200; the limit drive assembly 300 realizes precise control and limiting function of the first clamping assembly 200 through the combination of the limit seat 310, the sliding groove 301, the limit block 320 and the elastic member 330, thereby ensuring the stability and accuracy of the pipe during the hot forming extrusion process of the composite pipe.

[0027] Exemplarily, the elastic member 330 may be, but is not limited to, a compression spring.

[0028] like Figures 1 to 8 As shown, in some examples, the above-mentioned limit drive assembly 300 also includes: an adjustment mechanism 340, which is arranged between the above-mentioned limit seat 310 and the above-mentioned limit block 320, and is used to adjust the position of the above-mentioned limit block 320 in the above-mentioned sliding groove 301.

[0029] In this technical solution, the limit drive assembly 300 also includes an adjustment mechanism 340 arranged between the above-mentioned limit seat 310 and the above-mentioned limit block 320. The adjustment mechanism 340 is used to adjust the position of the limit block 320 in the sliding groove 301. The adjustment mechanism 340 is an adjustable structure installed between the limit seat 310 and the limit block 320. A screw or other type of adjustment device can be used to change the relative position of the limit block 320 in the sliding groove 301. Through the adjustment mechanism 340, the operator can adjust the position of the limit block 320 to adapt to different process requirements or adjust the working range of the first clamping assembly 200; as a part of the limit drive assembly 300, the adjustment mechanism 340 mainly functions to provide fine-tuning capability for the position of the limit block 320, thereby enhancing the flexibility and adaptability of the limit drive assembly 300 and ensuring precise operation and control during the hot forming extrusion process of the composite pipe.

[0030] like Figures 1 to 8As shown, in some examples, the adjustment mechanism 340 includes: a moving rod 341, one end of which is fixedly mounted on the end surface of the limiting block 320 away from the body 100, and the other end of the moving rod 341 slides through the side wall of the limiting seat 310; a locking nut 342, which is threadedly mounted on the moving rod 341, and the locking nut 342 is located on the outside of the limiting seat 310.

[0031] In this technical solution, the adjustment mechanism 340 includes a moving rod 341 and a locking nut 342. One end of the moving rod 341 is fixedly installed on the end surface of the limit block 320 away from the body 100. For example, it can be fixed by bolts or other means. The other end of the moving rod 341 slides through the side wall of the limit seat 310; the thread of the locking nut 342 cooperates with the thread of the moving rod 341, and the locking nut 342 is located on the outside of the limit seat 310. The position of the locking nut 342 fixes the position of the moving rod 341 relative to the limit seat 310. By rotating the locking nut 342, the moving rod 341 can be moved on the limit seat 310, thereby adjusting the position of the limit block 320 in the sliding groove 301. By adjusting the position of the locking nut 342, the elastic member 330 can be compressed without changing the working position of the limit block 320, thereby increasing the thrust force.

[0032] like Figures 1 to 8 As shown, in some examples, the body 100 includes: a base 110; a cover 120, wherein the cover 120 is detachably mounted on the base 110, and the bearing hole 101 is disposed between the base 110 and the cover 120; wherein inclined grooves 102 are formed in the body 100 and on both sides of the bearing hole 101, and the first clamping assembly 200 is slidably mounted on the inclined grooves 102.

[0033] In this technical solution, the body 100 includes a base 110 and a cover 120, wherein the cover 120 and the base 110 can be detachably installed together, and the installation method can be selected but not limited to bolt connection. When the cover 120 and the body 100 are installed together, the bearing hole 101 is arranged between the base 110 and the cover 120, and at the same time, between the base 110 and the cover 120 and on both sides of the bearing hole 101, inclined grooves 102 are symmetrically arranged, and its first clamping assembly 200 is slidably installed in the inclined groove 102.

[0034] Exemplarily, the two inclined grooves 102 are symmetrically arranged in the body 100 with the axis of the bearing hole 101 as the axis of symmetry, wherein the two inclined grooves 102 are in an eight-shaped shape, the distance between one end of the two inclined grooves 102 is a first distance, and the distance between the other end of the two inclined grooves 102 is a second distance, and the first distance is smaller than the second distance, wherein the mold 600 is arranged on one side of the first distance of the two inclined grooves 102.

[0035] like Figures 1 to 8 As shown, in some examples, the first clamping assembly 200 includes a slider 210 , which is slidably installed in the inclined groove 102 , and a portion of the slider 210 extends to the outside of the body 100 .

[0036] In this technical solution, the first clamping assembly 200 includes a slider 210 slidably installed in the above-mentioned inclined groove 102, and a portion of the slider 210 extends through the body 100, so that a portion of the slider 210 is outside the body 100, wherein the slider 210 is slidably installed in the inclined groove 102. It can be seen from the above content that there are two inclined grooves 102, and they are symmetrically arranged in the body 100 with the axis of the bearing hole 101 as the axis of symmetry. Therefore, it can be seen that there are also two sliders 210, and the two sliders 210 are symmetrically slidably installed in the inclined groove 102 in the body 100 with the axis of the bearing hole 101 as the axis of symmetry, wherein the end of the inclined groove 102 away from the mold 600 is the first end, and the end of the inclined groove 102 close to the mold 600 is the second end. When the two sliders 210 move together in the direction of the first end, the two sliders 210 squeeze and clamp the tube body 500, and when the two sliders 210 move in the direction of the second end, the two sliders 210 release the tube body 500.

[0037] Exemplarily, a portion of the slider 210 slides through the body 100 , and a moving space for the slider 210 to move is formed on the body 100 , which does not restrict or block the movement of the slider 210 .

[0038] like Figures 1 to 8 As shown, in some examples, the first clamping assembly 200 further includes: a clamping block 220 , and the clamping block 220 is detachably mounted on the surface of the sliding block 210 close to the pipe.

[0039] In this technical solution, the first clamping assembly 200 also includes a clamping block 220 that is detachably mounted on the surface of the slider 210 close to the pipe. For example, a circular cavity can be formed between the two groups of clamping blocks 220, and the diameter of the hole in the cavity is equal to the diameter of the pipe body 500 to be processed.

[0040] Exemplarily, the clamping block 220 can be replaced according to the different product specifications of the tube body 500. The inner surface of the clamping block 220 is evenly arranged with mesh V-shaped grooves for anti-slip measures. When the clamping block 220 clamps the tube body 500, sufficient friction can be provided, thereby ensuring the stability of the clamping of the tube body 500.

[0041] like Figures 1 to 8 As shown, in some examples, the end surface of the limiting block 320 close to the body 100 is an arc-shaped surface.

[0042] In this technical solution, the end face of the limit block 320 close to the body 100 has a curved surface. The curved surface design of the limit block 320 can effectively guide and ensure that the slider 210 is accurately contacted within a predetermined range when the slider 210 moves and approaches the limit block 320. At the same time, the curved surface design of the limit block 320 allows the limit block 320 to contact and separate from the slider 210 more smoothly, avoiding sudden dynamic loads and improving the overall movement smoothness and operational stability of the equipment. The curved surface design of the limit block 320 can also adapt to different shapes and sizes of limit blocks 320, because it can provide a wider contact area, which is suitable for precise limiting requirements under a variety of motion paths and speed conditions.

[0043] like Figures 1 to 8 As shown, in some examples, the feeding mechanism for the tube thermoforming machine further includes: a driving cylinder 400, which is installed on the machine body 100 and is used to drive the machine body 100 to move in the first direction or the second direction.

[0044] In this technical solution, the feeding mechanism of the tube thermoforming machine also includes a driving cylinder 400 installed on the above-mentioned machine body 100, which drives the machine body 100 to move in the first direction or the second direction through the driving cylinder 400; wherein, the driving cylinder 400 can be selected from but not limited to a hydraulic or pneumatic driven cylinder, which is installed on the machine body 100, and its main function is to provide power to enable the machine body 100 to move in a specified direction, which can be the first direction or the second direction, wherein the first direction and the second direction are both in the same plane.

[0045] It can be seen from the above content that when the position of the machine body 100 needs to be adjusted, the hydraulic system will apply pressure or control signals to the driving cylinder 400, and the driving cylinder 400 will generate linear motion under the action of its piston based on these inputs, and this motion can make the machine body 100 move along the first direction or the second direction; the action of the driving cylinder 400 is realized through the valves and hydraulic / pneumatic supply in the control system to ensure that the machine body 100 can be accurately and stably adjusted to meet the processing requirements of different workpieces; in summary, the driving cylinder 400, as an important part of the feeding mechanism, provides the necessary power and control for the tube thermoforming machine, ensuring that the machine body 100 can accurately adjust its position during the processing to achieve high-quality tube thermoforming processing.

[0046] like Figures 1 to 8 As shown, in some examples, the end of the slider 210 that contacts the limit drive assembly 300 is an arc-shaped end.

[0047] In this technical solution, the end of the slider 210 that contacts the limit drive assembly 300 is an arc-shaped end, and the arc-shaped end can increase the surface area in contact with the limit drive assembly 300, thereby dispersing pressure and reducing friction, which is conducive to smooth movement and operation; at the same time, the arc-shaped end can serve as a guide to ensure the correct position of the slider 210 on the limit drive assembly 300 and avoid unnecessary offset; the slider 210 is a moving part in the mechanical device, and its arc-shaped end design not only affects its own movement characteristics, but also affects the performance of the overall system. Through the arc-shaped contact with the limit drive assembly 300, smoother and more precise movement can be achieved, and stability and reliability can be maintained during the movement; in summary, the arc-shaped end design of the slider 210 plays an important role in the tube thermoforming machine or similar equipment. By optimizing the contact surface, the accuracy and controllability of the system are improved, thereby supporting efficient production and processing processes.

[0048] Working principle: the pipe body 500 is the composite pipe section to be processed, which first passes through the machine body 100, and then drives the oil cylinder 400 to drive the machine body 100 forward. Under the action of the limit drive assembly 300, the slider 210 and the machine body 100 produce relative displacement so that the clamping block 220 clamps the composite pipe section to be processed. After clamping the composite pipe section to be processed, the slider 210 continues to move forward with the machine body 100 to realize the feeding action. After the feeding is completed, the oil cylinder 400 drives the machine body 100 to retreat. Under the action of the limit drive assembly 300, the slider 210 returns to the initial position of the machine body 100, completing a feeding action cycle.

[0049] For example, under the action of the driving cylinder 400, the machine body 100 drives the slider 210 and the clamping block 220 to move forward. After the slider 210 contacts the bevel of the limit block 320, it shrinks and slides inward along the inclined groove 102 in the machine body 100 until the clamping block 220 clamps the tube body 500. With the continuous action of the driving cylinder 400, the slider 210 directly contacts the inclined surface of the limit block 320. Under the action of the elastic member 330, the clamping block 220 continues to clamp the tube body 500, and the mold 600 is fixed. When the tube body 500 contacts the mold 600, the slider 210 has not yet separated from the limit block 320. 0, at this time, the mold 600 will provide a reaction force to the tube body 500. Under the action of the reaction force, the tube body 500 has a tendency to retreat. This tendency will make the slider 210 disengage from the limit block 320, and the clamping block 220 can still clamp the tube body 500; when the clamping process is completed, after the head part of the tube body 500 extruded from the mold 600 is clamped by the subsequent equipment, the driving cylinder 400 drives the body 100 to start retreating, and the clamping block 220 is no longer clamped. After passing the limit drive assembly 300, the slider 210 drives the clamping block 220 to return to the initial position of the body 100, and the action cycle ends.

[0050] Comparative Example: like Fig. 9 As shown, the existing pipe feeding machine 700 includes a supporting body 710, in which a second clamping assembly 740 is slidably installed, and the pipe body is arranged in the supporting body 710 through the supporting body 710. The working position is changed by the second clamping assembly 740 to clamp or release the pipe body. A driving cylinder 720 is arranged on the supporting body 710. The driving cylinder 720 is generally pneumatic or hydraulic. The output end of the driving cylinder 720 is fixedly connected to a moving plate 730. The two sides of the supporting body 710 are symmetrically formed with inclined driving grooves 703, wherein a part of the second clamping assembly 740 slides through the driving groove 703, and a part of the second clamping assembly 740 is slidably installed on the moving plate 730. When working, the output end of the driving cylinder 720 controls the movement of the moving plate 730, thereby controlling the movement of the second clamping assembly 740, so that the second clamping assembly 740 clamps or releases the pipe body, and the feeding work of the pipe body is realized, wherein the internal structure of the second clamping assembly 740 is the same as the internal structure of the first clamping assembly 200.

[0051] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0054] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0055] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A feeding mechanism for a tube thermoforming machine, characterized in that: include: A machine body, wherein the machine body is provided with a bearing hole for bearing the pipe; A first clamping assembly, wherein the first clamping assembly is slidably mounted in the body, and a portion of the first clamping assembly extends to the outside of the body; A limit drive assembly, wherein the limit drive assembly is arranged outside the body; Wherein, when the body moves along a first direction and a portion of the first clamping assembly located outside the body contacts the limit drive assembly, the first clamping assembly clamps the tube; and when the body moves along a second direction and a portion of the first clamping assembly located outside the body contacts the limit drive assembly, the first clamping assembly releases the tube.

2. The feeding mechanism for a tube thermoforming machine according to claim 1, characterized in that: The limit drive assembly comprises: A limit seat, wherein the limit seat is formed with a sliding groove in a direction toward the machine body; A limit block, the limit block is slidably installed in the sliding groove; An elastic member is arranged between the limit block and the sliding groove, and is used for applying a force to the limit block in the direction of the machine body.

3. The feeding mechanism for a tube thermoforming machine according to claim 2, characterized in that: The limit drive assembly also includes: An adjusting mechanism is disposed between the limiting seat and the limiting block, and is used for adjusting the position of the limiting block in the sliding groove.

4. The feeding mechanism for a tube thermoforming machine according to claim 3, characterized in that: The regulating mechanism comprises: A moving rod, one end of which is fixedly mounted on the end surface of the limiting block away from the machine body, and the other end of which slides through the side wall of the limiting seat; A locking nut is threadably mounted on the moving rod and is located outside the limiting seat.

5. The feeding mechanism for a tube thermoforming machine according to claim 1, characterized in that: The body comprises: Machine base; A machine cover, the machine cover is detachably mounted on the machine base, and the bearing hole is arranged between the machine base and the machine cover; Wherein, inclined grooves are formed in the body and on both sides of the bearing hole, and the first clamping assembly is slidably installed in the inclined grooves.

6. The feeding mechanism for a tube thermoforming machine according to claim 5, characterized in that: The first clamping assembly comprises: A slider is slidably installed in the inclined groove, and a portion of the slider extends to the outside of the machine body.

7. The feeding mechanism for a tube thermoforming machine according to claim 6, characterized in that: The first clamping assembly also includes: A clamping block is detachably mounted on a surface of the sliding block close to the pipe.

8. The feeding mechanism for a tube thermoforming machine according to claim 2, characterized in that: The end surface of the limiting block close to the body is an arc-shaped surface.

9. The feeding mechanism for a tube thermoforming machine according to claim 1, characterized in that: Also includes: A driving cylinder is installed on the machine body and is used to drive the machine body to move in a first direction or a second direction.

10. The feeding mechanism for a tube thermoforming machine according to claim 6, characterized in that: The end of the sliding block in contact with the limit drive assembly is an arc-shaped end.

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