Extrusion forming device for square and rectangular pipe machining

Abstract

The utility model belongs to the technical field of square and rectangular tube processing, and discloses an extrusion forming device for square and rectangular tube processing, which comprises an operating platform and a round tube to be processed, the front end of the operating platform is fixedly connected with a fixed plate, the top end of the fixed plate is fixedly connected with a convex block, the outer side of the convex block is slidably provided with a sliding block, and the left side of the sliding block is provided with a ball cavity. A round ball cavity of the sliding block is internally provided with an abutting ball in a sliding mode, the right side of the abutting ball abuts against a shell, the left side of the top end of the shell is fixedly connected with an extension block, the interior of the extension block is spirally connected with a sliding pin, and the outer side of the bottom end of the sliding pin abuts against the abutting ball. The problems that a square tube can only be extruded into a fixed shape, the shape of the square tube cannot be changed, a large number of die heads need to be replaced when the shape of the square tube needs to be changed, and time is wasted are solved.

Description

Technical Field

[0001] This utility model belongs to the field of square and rectangular tube processing technology, specifically an extrusion molding device for processing square and rectangular tubes. Background Technology

[0002] Square and rectangular tubes are a type of steel pipe with square and rectangular sides, that is, steel pipes with equal or unequal side lengths. They are made from strip steel through a process of rolling. Generally, the strip steel is unpacked, flattened, rolled, and welded to form a round tube, which is then rolled into a square tube and cut into the required length.

[0003] Meanwhile, patent application number 201921426793.8 discloses an extrusion molding device for processing square and rectangular tubes, a worktable, a lower pressure plate provided on the upper surface of the worktable, and a support plate provided on the side of the upper surface of the worktable near the lower pressure plate. A first connecting plate is provided on one side of the support plate, a cylinder is provided on the upper surface of the first connecting plate, and a telescopic rod is provided below the first connecting plate. An upper pressure plate is welded to the lower end of the telescopic rod. A shielding component is movably provided on both sides of the lower pressure plate, and a cleaning component is fixedly provided on both sides of the lower pressure plate.

[0004] However, in implementing the relevant technology, it was found that the extrusion molding device for processing square and rectangular tubes has the problem that during the extrusion process, it can only extrude the square and rectangular tubes into a fixed shape and cannot change their shape. When it is necessary to change their shape, a large number of mold heads need to be replaced, which wastes time. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides an extrusion forming device for processing square and rectangular tubes. It has the advantage of changing the position of the tube to be processed by changing the extrusion rollers in the horizontal and vertical positions of two adjacent sets of extrusion rollers, thereby changing the position of the extrusion rollers on the tube to be processed, and facilitating the adjustment of the shape of the tube to be processed.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an extrusion molding device for processing square and rectangular tubes, comprising an operating table and a round tube to be processed, a fixing plate fixedly connected to the front end of the operating table, a protrusion fixedly connected to the top end of the fixing plate, a slider slidably disposed on the outer side of the protrusion, a spherical cavity opened on the left side of the slider, a retaining ball slidably disposed inside the spherical cavity of the slider, a shell abutting against the right side of the retaining ball, an extension block fixedly connected to the top left side of the shell, a sliding pin spirally connected inside the extension block, and the bottom outer side of the sliding pin abutting against the retaining ball.

[0007] Preferably, a rectangular groove is provided at the center of the front end of the operating table. The round tube to be processed slides back and forth inside the rectangular groove of the operating table. A wheel is provided to the outer side of the round tube to be processed. A lead screw is fixedly connected to the top of the wheel. A spring is sleeved on the outer side of the bottom end of the lead screw. A limit block is provided to the other end of the spring. A support ring is fixedly connected to the bottom end of the limit block. The outer side of the round tube to be processed slides on the outer side of the three sets of wheels.

[0008] Preferably, the interior of the outer shell is configured as a square cavity, a motor is fixedly connected to the top of the outer shell, the output end of the motor passes through the interior of the outer shell and is fixedly connected to a first connecting rod, a first half gear is sleeved on the outer side of the first connecting rod, and a compression wheel in a lateral position is fixedly connected to the bottom end of the first connecting rod.

[0009] Preferably, a second half gear is rotatably connected to the outer left side of the first half gear, a second connecting rod is rotatably connected to the center of the second half gear, the outer side of the second connecting rod penetrates the interior of the outer casing, and a vertically positioned extrusion wheel is fixedly connected to the left side of the second connecting rod.

[0010] Preferably, the front end of the operating table is provided with a sliding groove, a support rod is slidably arranged inside the sliding groove of the operating table, a fixing rod is fixedly connected to the outer side of the front end of the support rod, and a brush is rotatably connected to the bottom end of the fixing rod, the brush being arranged on the outer side of the extrusion roller.

[0011] Preferably, there are two sets of extrusion rollers in the horizontal position and the vertical position, which are arranged symmetrically on the outside of the tube to be processed.

[0012] Preferably, the housing and motor are provided in two sets, and the two sets are symmetrically arranged with respect to the central position.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by setting the outer shell at the top of the fixed plate, changes the position of the extrusion wheel connected to the outer shell and the round tube to be processed, thereby changing the shape of the extrusion when the round tube to be processed is extruded. Adjusting the outer shell is relatively simple. The bottom end of the sliding pin inside the extension block connected to the outer shell is slid upward to release the restriction on the clamping ball. When the clamping ball is no longer clamped to the outer shell, it is easy to slide. In addition, a brush is added to the front end of the operating table to achieve friction between the brush and the extrusion wheel, thus rubbing off the outer side of the extrusion wheel.

[0015] 2. This utility model places the round tube to be processed inside the support ring and uses a limiting structure to clamp the round tube to be processed, preventing displacement of the round tube during processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the outer shell structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the extrusion wheel structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the circular tube structure to be processed according to this utility model;

[0020] Figure 5 This is a schematic diagram of the anti-clamping ball structure of this utility model.

[0021] In the diagram: 1. Operating table; 2. Round tube to be processed; 3. Support ring; 4. Limiting block; 5. Lead screw; 6. Spring; 7. Wheel; 8. Fixing plate; 9. Protrusion; 10. Slider; 11. Anchor ball; 12. Sliding pin; 13. Extension block; 14. Housing; 15. Motor; 16. First half gear; 17. First connecting rod; 18. Second half gear; 19. Second connecting rod; 20. Support rod; 21. Fixing rod; 22. Brush; 23. Extrusion wheel. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 5 As shown, this utility model provides an extrusion molding device for processing square and rectangular tubes, including an operating table 1 and a round tube 2 to be processed. A fixing plate 8 is fixedly connected to the front end of the operating table 1, and a protrusion 9 is fixedly connected to the top end of the fixing plate 8. A slider 10 is slidably arranged on the outside of the protrusion 9. A spherical cavity is opened on the left side of the slider 10. The slider 10 and the outer shell 14 are fixedly connected. A retaining ball 11 is slidably arranged inside the spherical cavity of the slider 10. The sliding pin 12 inside the extension block 13 and the retaining ball 11 inside the slider 10 are welded and fixed to the top left of the outer shell 14. When the retaining ball 11 is not in contact with the outer shell 14, the rear side of the outer shell 14 can be moved to the desired position. The outer shell 14 is abutted on the right side of the retaining ball 11.

[0024] Specifically, a rectangular groove is provided at the center of the front end of the operating table 1. The round tube 2 to be processed slides back and forth inside the rectangular groove of the operating table 1. A wheel 7 is provided on the outer side of the round tube 2 to be processed, which is used to clamp the round tube 2 to be processed. A lead screw 5 is fixedly connected to the top of the wheel 7. A spring 6 is sleeved on the outer side of the bottom end of the lead screw 5. When the lead screw 5 is rotated clockwise, the lead screw 5 compresses the spring 6 and deforms towards the position of the limiting block 4. The lead screw 5 drives the wheel 7 to slide towards the position of the round tube 2 to be processed at the position of the support ring 3. The three sets of wheels 7 clamp the round tube 2 to be processed.

[0025] Furthermore, the interior of the outer casing 14 is configured as a square cavity, and a motor 15 is fixedly connected to the top of the outer casing 14. The output end of the motor 15 passes through the interior of the outer casing 14 and is fixedly connected to a first connecting rod 17. A first half gear 16 is sleeved on the outside of the first connecting rod 17, and a compression roller 23 in a transverse position is fixedly connected to the bottom of the first connecting rod 17.

[0026] Furthermore, the outer left side of the first half gear 16 is meshed with and rotatably connected to the second half gear 18. The center position of the second half gear 18 is rotatably connected to the second connecting rod 19. The outer side of the second connecting rod 19 penetrates the interior of the outer shell 14. The left side of the second connecting rod 19 is fixedly connected to the vertical extrusion wheel 23. The extrusion of the round tube 2 to be processed is achieved by the cooperation of the horizontal extrusion wheel 23 and the vertical extrusion wheel 23.

[0027] It is worth noting that a sliding groove is provided at the front end of the operating table 1, and a support rod 20 is slidably installed inside the sliding groove of the operating table 1. The support rod 20 is used to slide in the position of the operating table 1. A fixed rod 21 is fixedly connected to the outer side of the front end of the support rod 20. The support rod 20 is used to support the fixed rod 21. A brush 22 is rotatably connected to the bottom end of the fixed rod 21. The brush 22 is located on the outer side of the extrusion wheel 23. When the extrusion wheel 23 rotates, the brush 22 cleans the outer side of the extrusion wheel 23.

[0028] It is worth noting that there are four sets of extrusion rollers 23. By using the extrusion rollers 23, the round tube 2 to be processed can be extruded into a square shape, and the extrusion rollers 23 are arranged symmetrically on the outside of the round tube 2 to be processed.

[0029] It is worth mentioning that there are two sets of housing 14 and motor 15, which are respectively set at the upper right and lower left positions of the front end of the operating table 1, so as to achieve symmetrical arrangement with the center position.

[0030] Among them, motor 15 and extrusion wheel 23 are existing technologies and will not be described in detail; at the same time, this utility model also includes power supply, controller and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.

[0031] Working principle:

[0032] First, the worker places the round tube 2 to be processed inside the support ring 3, and positions one end of the round tube 2 on the outside of the four sets of extrusion wheels 23. The position of the wheels 7 relative to the round tube 2 is adjusted according to its size. When the diameter of the round tube 2 is small, the lead screw 5 is rotated clockwise. The lead screw 5 compresses the spring 6 and deforms towards the position of the limiting block 4. The lead screw 5, positioned on the support ring 3, drives the wheels 7 to slide towards the position of the round tube 2. The three sets of wheels 7 clamp the round tube 2, facilitating subsequent processing. Stable, then when it is necessary to change the shape of the round tube 2 to be processed, it is necessary to change the extrusion roller 23 in the horizontal position and the extrusion roller 23 in the vertical position. Rotate the sliding pin 12 inside the extension block 13 counterclockwise to release the sliding pin 12 from the abutting ball 11 inside the slider 10. When the abutting ball 11 is no longer abutting against the outer shell 14, the rear side of the outer shell 14 can be moved to the desired position, and the sliding pin 12 is rotated. When the sliding pin 12 slides down, the outer side of the sliding pin 12 abuts against the abutting ball 11, thereby limiting the outer shell 14 and preventing the outer shell 14 from moving.

[0033] Next, after the required shape and position of the round tube 2 to be processed are adjusted, the motor 15 is started. The output end of the motor 15 drives the first connecting rod 17 to rotate. During the rotation, the extrusion wheel 23 in the horizontal position rotates and the first half gear 16 rotates. The first half gear 16 drives the second half gear 18 on the outside to rotate. The second connecting rod 19 at the center of the second half gear 18 drives the extrusion wheel 23 in the vertical position to rotate. During the rotation, the extrusion wheel 23 in the horizontal position and the extrusion wheel 23 in the vertical position rotate synchronously. During the rotation, the round tube 2 to be processed is extruded and then slides out from the square groove at the front end of the operating table 1, thus realizing the extrusion forming of the round tube 2 to be processed.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion forming apparatus for processing square and rectangular tubes, comprising an operating table (1) and a round tube to be processed (2), characterized in that: A fixed plate (8) is fixedly connected to the front end of the operating table (1). A protrusion (9) is fixedly connected to the top of the fixed plate (8). A slider (10) is slidably arranged on the outside of the protrusion (9). A spherical cavity is opened on the left side of the slider (10). A pressing ball (11) is slidably arranged inside the spherical cavity of the slider (10). A shell (14) is pressed against the right side of the pressing ball (11). An extension block (13) is fixedly connected to the left side of the top of the shell (14). A sliding pin (12) is spirally connected inside the extension block (13). The bottom outer side of the sliding pin (12) is pressed against the pressing ball (11).

2. The extrusion forming apparatus for processing square and rectangular tubes according to claim 1, characterized in that: The operating table (1) has a rectangular groove at the center of its front end. The round tube (2) to be processed slides back and forth inside the rectangular groove of the operating table (1). A wheel (7) is tightly abutted against the outer side of the round tube (2). A lead screw (5) is fixedly connected to the top of the wheel (7). A spring (6) is sleeved on the outer side of the bottom end of the lead screw (5). A limit block (4) is tightly abutted against the other end of the spring (6). A support ring (3) is fixedly connected to the bottom end of the limit block (4). The bottom end of the support ring (3) is set at the top of the operating table (1). The outer side of the round tube (2) to be processed slides on the outer side of the three sets of wheels (7).

3. The extrusion forming apparatus for processing square and rectangular tubes according to claim 1, characterized in that: The interior of the outer shell (14) is configured as a square cavity. A motor (15) is fixedly connected to the top of the outer shell (14). The output end of the motor (15) passes through the interior of the outer shell (14) and is fixedly connected to a first connecting rod (17). A first half gear (16) is sleeved on the outside of the first connecting rod (17). A compression wheel (23) in a transverse position is fixedly connected to the bottom end of the first connecting rod (17).

4. The extrusion forming apparatus for processing square and rectangular tubes according to claim 3, characterized in that: The outer left side of the first half gear (16) is meshed with and rotatably connected to the second half gear (18). The center position of the second half gear (18) is rotatably connected to the second connecting rod (19). The outer side of the second connecting rod (19) penetrates the interior of the outer shell (14). The left side of the second connecting rod (19) is fixedly connected to the vertically positioned extrusion wheel (23).

5. An extrusion forming apparatus for processing square and rectangular tubes according to claim 2, characterized in that: The front end of the operating table (1) is provided with a sliding groove, and a support rod (20) is slidably arranged inside the sliding groove of the operating table (1). A fixing rod (21) is fixedly connected to the outer side of the front end of the support rod (20), and a brush (22) is rotatably connected to the bottom end of the fixing rod (21). The brush (22) is arranged on the outer side of the extrusion wheel (23).

6. An extrusion forming apparatus for processing square and rectangular tubes according to claim 5, characterized in that: The extrusion rollers (23) are provided in four sets, and are arranged symmetrically on the outside of the round tube (2) to be processed.

7. An extrusion forming apparatus for processing square and rectangular tubes according to claim 3, characterized in that: The outer casing (14) and the motor (15) are provided in two sets, and the two sets are symmetrically arranged at the center position.

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