Core print limiting device

Abstract

The utility model provides a core print limiting device. The core print limiting device comprises a support, a lifting frame, a lifting driving assembly and a pit digging mechanism, a lifting track is arranged on the support, the lifting frame is movably connected with the lifting track, the lifting driving assembly is in driving connection with the lifting frame, the pit digging mechanism is arranged on the lifting frame and comprises a power assembly and a pit digging block, the power assembly is arranged on the lifting frame, and the pit digging block is arranged on the lifting frame. And the driving device is in driving connection with the pit digging block, and a pit digging part is formed on the pit digging block. Compared with the prior art, the core print limiting device can immediately perform pit digging operation on the pipe after the combined drawing machine finishes primary drawing, so that a recess is formed in the pipe to limit the position of the core print, the core print is left at a proper position so as to enter secondary drawing operation of the combined drawing machine, and the core print limiting device is simple in structure, time-saving, labor-saving and high in practicability. And the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe production and processing, in particular to a core head limiting device. Background Art

[0002] In the production and processing of copper tubes and other metal tubes, double and triple drawing is an important drawing process. Before drawing, the tube needs to be headed and the core head is sent into the tube, so that the tube head has a solid section, the size of the tube head is reduced, the drawing strength of the tube head is increased, and it is convenient for the starting traction of the tube and drawing.

[0003] After the first pull of the joint pulling machine is completed, the pipe still needs to be transported over a certain distance to reach the second pulling position. During the transportation process, there is no internal limiting structure, so the position of the core head is easily offset, resulting in the need to pause the pipe when entering the device for implementing the second pull. Then, it is necessary to manually use a magnet to find the position of the core head, and pull the core head to the pipe head, and then manually punch a pit on the pipe to limit the core head of the pipe. The operation is cumbersome, time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and provide a core head limiting device.

[0005] An embodiment of the utility model provides a core head limiting device, comprising: a support, a lifting frame, a lifting drive component and a pitting mechanism.

[0006] The support is provided with a lifting track, the lifting frame is movably connected to the lifting track, the lifting drive assembly is drivingly connected to the lifting frame, and the pit-making mechanism is provided on the lifting frame, wherein the pit-making mechanism includes a power assembly and a pit-making block, the power assembly is provided on the lifting frame and drivingly connected to the pit-making block, and a pit-making portion is formed on the pit-making block.

[0007] In some optional embodiments, the cratering mechanism further includes a pressure block, which is disposed on the cratering block. The pressure block is provided with a positioning groove adapted to the shape of the pipe, and the cratering portion is disposed in the positioning groove and protrudes from the inner wall of the positioning groove.

[0008] In some optional embodiments, an adjustment groove is provided in the positioning groove, the pit block is movably connected to the adjustment groove, the pit portion extends from the adjustment groove into the positioning groove, and the pit block moves relative to the adjustment groove so that the pit portion extends out of the adjustment groove or is retracted into the adjustment groove.

[0009] In some optional embodiments, two of the pit-digging mechanisms are provided on the lifting frame, and the two pit-digging mechanisms are arranged opposite to each other, and the pit-digging blocks of the two pit-digging mechanisms are driven by the power assembly to move closer to or farther away from each other.

[0010] In some optional embodiments, two lifting rails are provided on the support, and two sides of the lifting frame are movably connected to the two lifting rails respectively.

[0011] In some optional embodiments, the lifting track includes a plurality of guide seats arranged in sequence from top to bottom, the guide seats are provided with guide holes, the lifting frame includes a connecting seat and two sliding rods provided on both sides of the connecting seat, and the sliding rods are slidably matched with the plurality of guide holes of the same lifting track.

[0012] In some optional embodiments, a pre-positioning groove is provided at the bottom of the lifting frame, and the pitting block is arranged on the side of the pre-positioning groove.

[0013] In some optional embodiments, the lifting drive assembly is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder, the lifting drive assembly is arranged on the support, and its output shaft is drivingly connected to the lifting frame.

[0014] In some optional embodiments, the power assembly is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder, and the output shaft of the power assembly is drivingly connected to the lifting frame.

[0015] In some optional embodiments, the end surface of the pit portion is a curved surface.

[0016] Compared with the prior art, the core head limiting device of the utility model can perform a pitting operation on the pipe immediately after the joint pulling machine completes the first pulling operation, so that a depression is generated inside the pipe and the position of the core head is restricted, so that the core head stays in a suitable position for entering the second pulling operation of the joint pulling machine. It has a simple structure, saves time and effort, and improves production efficiency.

[0017] In order to more clearly understand the present invention, the specific implementation of the present invention will be described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A partial cross-sectional view of a core head limiting device according to an embodiment of the utility model;

[0019] Figure 2 A partial cross-sectional view of one side of a core head limiting device according to an embodiment of the utility model;

[0020] Figure 3 for Figure 1 An enlarged view of A is shown.

[0021] Description of reference numerals:

[0022] 10. Support; 11. Lifting track; 12. Guide seat; 20. Lifting frame; 21. Connecting seat; 22. Slide rod; 23. Pre-positioning slot; 30. Lifting drive assembly; 40. Piercing mechanism; 41. Power assembly; 42. Piercing block; 43. Piercing part; 44. Pressing block; 45. Positioning slot; 46. Adjusting slot. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, unless otherwise specified, "multiple" means 2 or more, and "several" means 1 or more. In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" 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.

[0026] In the description of the utility model, the description with reference to the terms "one embodiment", "some optional implementations" or "some optional embodiments" 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 representation of the above terms does 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.

[0027] See also Figure 1 and Figure 2 An embodiment of the utility model provides a core head limiting device, including: a support 10, a lifting frame 20, a lifting drive assembly 30 and a pitting mechanism 40.

[0028] The support 10 is provided with a lifting track 11, the lifting frame 20 is movably connected to the lifting track 11, the lifting drive assembly 30 is drivingly connected to the lifting frame 20, and the pit-making mechanism 40 is provided on the lifting frame 20, wherein, please refer to Figure 3 The pit-digging mechanism 40 includes a power assembly 41 and a pit-digging block 42 . The power assembly 41 is disposed on the lifting frame 20 and is drivingly connected to the pit-digging block 42 . A pit-digging portion 43 is formed on the pit-digging block 42 .

[0029] After the first pull is completed, the pipe is transferred to the bottom of the lifting frame 20, and then the lifting drive assembly 30 drives the lifting frame 20 to descend, and then the power assembly 41 drives the piercing block 42 to press against the pipe, and the piercing portion 43 presses a pit on the pipe, and a bulge will be formed at a position corresponding to the pit inside the pipe, thereby limiting the position of the core head so that the core head remains in a suitable position; then the power assembly 41 drives the piercing block 42 to retreat, and the lifting drive assembly 30 drives the lifting frame 20 to rise, and then the pipe can be transported to the device for implementing the second pull, without manual piercing, with a simple structure, saving time and effort, and improving production efficiency.

[0030] In some optional embodiments, the denting mechanism 40 further includes a pressing block 44, which is disposed on the denting block 42. The pressing block 44 is provided with a positioning groove 45 adapted to the shape of the pipe, and the denting portion 43 is disposed in the positioning groove 45 and protrudes from the inner wall of the positioning groove 45. When the power assembly 41 drives the denting block 42 to press against the pipe, the pipe will extend into the positioning groove 45 of the pressing block 44, thereby preventing the pipe from shifting when the denting block 42 squeezes the pipe.

[0031] In some optional embodiments, an adjustment groove 46 is provided in the positioning groove 45, the punching block 42 is movably connected to the adjustment groove 46, the punching portion 43 extends from the adjustment groove 46 into the positioning groove 45, and the punching block 42 moves relative to the adjustment groove 46 to make the punching portion 43 extend out of the adjustment groove 46 or retract into the adjustment groove 46. The punching block 42 is adjusted relative to the adjustment groove 46, and then the distance that the end of the punching portion 43 protrudes from the positioning groove 45 is adjusted, so as to facilitate the adjustment of the depth of the pit punched on the pipe by the punching portion 43, so that the depth of the pit meets the requirements.

[0032] In order to better restrict the core head, in some optional embodiments, two denting mechanisms 40 are provided on the lifting frame 20, and the two denting mechanisms 40 are arranged opposite to each other, and the denting blocks 42 of the two denting mechanisms 40 are driven by the power assembly 41 to move closer to or farther from each other. The two denting blocks 42 will make pits on both sides of the pipe, and then form bulges on the opposite side walls inside the pipe, so that the restriction on the core head is more stable.

[0033] In order to improve the stability of the movement of the lifting frame 20 , in some optional embodiments, two lifting rails 11 are provided on the support 10 , and two sides of the lifting frame 20 are movably connected to the two lifting rails 11 respectively.

[0034] The specific structures of the lifting frame 20 and the lifting track 11 can be designed according to actual needs. For example, in some optional embodiments, the lifting track 11 includes a plurality of guide seats 12 arranged sequentially from top to bottom, and the guide seats 12 are provided with guide holes. The lifting frame 20 includes a connecting seat 21 and two slide bars 22 arranged on both sides of the connecting seat 21, and the slide bars 22 are correspondingly slidably matched with the plurality of guide holes of the same lifting track 11. Of course, the structures of the lifting frame 20 and the lifting track 11 are not limited thereto, and those skilled in the art can also select other suitable structures according to the teachings of the present utility model, for example, the lifting track 11 is a guide rod, and the lifting frame 20 is provided with a through hole slidably matched with the guide rod.

[0035] In some optional embodiments, a pre-positioning groove 4523 is provided at the bottom of the lifting frame 20, and the punching block 42 is arranged on the side of the pre-positioning groove 4523. After the pipe moves to the bottom of the lifting frame 20, the lifting frame 20 descends to allow the pipe to enter the pre-positioning groove 4523, thereby preventing the pipe from shifting its position when the punching block 42 moves toward the pipe, thereby affecting the accuracy of the punching position.

[0036] The specific structure of the lifting drive assembly 30 can be designed according to actual needs. For example, in some optional embodiments, the lifting drive assembly 30 is a cylinder, a hydraulic cylinder or an electric cylinder. The lifting drive assembly 30 is arranged on the support 10, and its output shaft is drivingly connected to the lifting frame 20. In this embodiment, the lifting drive assembly 30 is a hydraulic cylinder.

[0037] The specific structure of the power assembly 41 can be designed according to actual needs. For example, in some optional embodiments, the power assembly 41 is a cylinder, a hydraulic cylinder or an electric cylinder, and the output shaft of the power assembly 41 is drivingly connected to the lifting frame 20. In this embodiment, the lifting drive assembly 30 is a hydraulic cylinder.

[0038] The pits formed on the pipe are related to the shape of the pit portion 43. In some optional embodiments, the end surface of the pit portion 43 is a curved surface, so that the pits on the surface of the pipe are smoother and avoid damage to the pipe.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A core head limiting device, characterized in that: include: Support, lifting frame, lifting drive assembly and pit-making mechanism; The support is provided with a lifting track, the lifting frame is movably connected to the lifting track, the lifting drive assembly is drivingly connected to the lifting frame, and the pit-making mechanism is provided on the lifting frame, wherein the pit-making mechanism includes a power assembly and a pit-making block, the power assembly is provided on the lifting frame and drivingly connected to the pit-making block, and a pit-making portion is formed on the pit-making block.

2. A core head limiting device according to claim 1, characterized in that: The punching mechanism also includes a pressure block, which is arranged on the punching block. A positioning groove matching the shape of the pipe is arranged on the pressure block. The punching part is arranged in the positioning groove and protrudes from the inner wall of the positioning groove.

3. A core head limiting device according to claim 2, characterized in that: An adjusting groove is arranged in the positioning groove, the punching block is movably connected with the adjusting groove, the punching portion extends from the adjusting groove into the positioning groove, and the punching block moves relative to the adjusting groove to make the punching portion extend out of the adjusting groove or be retracted into the adjusting groove.

4. A core head limiting device according to claim 1, characterized in that: Two pit-making mechanisms are arranged on the lifting frame, and the two pit-making mechanisms are arranged opposite to each other. The pit-making blocks of the two pit-making mechanisms are driven by the power component to move closer to or farther away from each other.

5. A core head limiting device according to claim 1, characterized in that: The support is provided with two lifting rails, and two sides of the lifting frame are movably connected to the two lifting rails respectively.

6. A core head limiting device according to claim 5, characterized in that: The lifting track includes a plurality of guide seats arranged in sequence from top to bottom, the guide seats are provided with guide holes, the lifting frame includes a connecting seat and two sliding rods arranged on both sides of the connecting seat, and the sliding rods are slidably matched with the plurality of guide holes of the same lifting track.

7. A core head limiting device according to any one of claims 1 to 6, characterized in that: The bottom of the lifting frame is provided with a pre-positioning groove, and the punching block is arranged on the side of the pre-positioning groove.

8. A core head limiting device according to any one of claims 1 to 6, characterized in that: The lifting drive component is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder. The lifting drive component is arranged on the support, and its output shaft is drivingly connected to the lifting frame.

9. A core head limiting device according to any one of claims 1 to 6, characterized in that: The power assembly is a pneumatic cylinder, a hydraulic cylinder or an electric cylinder, and the output shaft of the power assembly is drivingly connected to the lifting frame.

10. A core head limiting device according to any one of claims 1 to 6, characterized in that: The end surface of the pitting portion is a curved surface.

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