A portable copper tube drawing machine

Abstract

This invention relates to the field of copper tube drawing technology, specifically to a portable copper tube drawing machine, comprising a drawing support and a power mechanism disposed on the drawing support, and two clamping mechanisms centrally symmetrically disposed on the top of the drawing support; a drawing die seat is disposed in the middle of the drawing support; the two clamping mechanisms are respectively connected to the power mechanism; the power mechanism is configured to drive the two clamping mechanisms to synchronously reciprocate in opposite directions; extrusion blocks and drive grooves are disposed on both sides of the top of the drawing support; the extrusion blocks and drive grooves are configured to switch between a clamping state and a non-clamping state during the reciprocating motion of the clamping mechanisms; thereby enabling the two clamping mechanisms to alternately clamp and draw the copper tube inserted into the drawing die seat, realizing continuous drawing operation and improving the drawing efficiency of the copper tube.

Description

Technical Field

[0001] This invention relates to the field of copper tube drawing technology, and more specifically to a portable copper tube drawing machine. Background Technology

[0002] Most existing copper tube drawing machines are designed to meet the needs of large-scale factory production. They are large in size and heavy in weight, which makes them unsuitable for special scenarios such as copper tube installation sites and copper tube repair sites where temporary drawing processing of copper tubes is required.

[0003] The existing copper tube drawing machine uses a chain to clamp and pull the tube blank. The pulling length is limited by the length of the guide rail, which makes it impossible to continuously and automatically draw the copper tube, resulting in low drawing efficiency. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a portable copper tube drawing machine, which enables two clamping mechanisms to alternately clamp and draw the copper tube that passes through the drawing die, thereby achieving continuous drawing operations and improving the drawing efficiency of copper tubes.

[0005] To achieve the above objectives, the specific solution of the present invention is as follows: A portable copper tube drawing machine includes a drawing support and a power mechanism disposed on the drawing support, and two clamping mechanisms centrally symmetrically disposed on the top of the drawing support; a drawing die seat is disposed in the middle of the drawing support; the two clamping mechanisms are respectively connected to the power mechanism; the power mechanism is configured to drive the two clamping mechanisms to synchronously reciprocate in opposite directions; the clamping mechanism includes a sliding seat slidably disposed on the drawing support, a clamping slide slidably disposed on the sliding seat, a rotating block rotatably disposed at one end of the clamping slide, a drive rod slidably passing through the clamping slide, a roller connected to the drive rod, and two clamping blocks disposed vertically opposite each other at one end of the clamping slide;

[0006] Both sides of the top of the pull-out support are provided with extrusion blocks and drive grooves; the extrusion blocks and drive grooves are configured to switch between clamping and non-clamping states during the reciprocating motion of the clamping mechanism.

[0007] Optionally, a first spring is provided between the clamping slide and the sliding seat, the rotating block is slidably hinged to the two clamping blocks, one end of the drive rod is movably connected to the rotating block to drive the rotating block to rotate, and the rotation of the rotating block will drive the clamping blocks to slide up and down. A second spring is provided between one end of the drive rod and the clamping slide; the other end of the drive rod is connected to the roller, which is used to movably abut against the extrusion block, and the other end of the clamping slide is elastically connected to a first locking pin that is movably embedded in the drive groove.

[0008] Optionally, the clamping mechanism further includes a push rod that slides through the clamping slide, with a third spring between one end of the push rod and the other end of the drive rod, and the other end of the push rod extending outward through the other end of the clamping slide and connected to a roller.

[0009] Optionally, one end of the drive rod extends movably into the rotating block, and the drive rod is provided with a spiral groove. The inner wall of the rotating block is provided with a second locking pin that is movably embedded in the spiral groove.

[0010] Optionally, two clamping sliders are slidably provided at one end of the clamping slide, and two clamping blocks are provided one-to-one with the two clamping sliders; each clamping slider is provided with a horizontal strip hole, and the rotating block is provided with two third locking pins, which are movably embedded in the corresponding horizontal strip hole.

[0011] Optionally, a connecting rod extends vertically downward from the other end of the clamping slide; a sliding hole is provided at the end of the connecting rod; a fourth spring is provided in the sliding hole; a first locking pin extends movably into the sliding hole and abuts against the fourth spring.

[0012] Optionally, the drawing support is provided with guide rails on both sides of the drawing die base; the sliding seat is slidably connected to the guide rails.

[0013] Optionally, the drive groove includes a first section and a second section that are parallel to each other. An inclined third section is connected between the end of the first section near the drawing die base and the end of the second section near the drawing die base. An inclined fourth section is connected between the end of the first section away from the drawing die base and the end of the second section away from the drawing die base. The first section is located on the side of the second section near the center of the drawing die base, and the length of the first section is less than the length of the second section. The depth of the third section is greater than the depth of the second section and the depth of the fourth section. The depth of the end of the first section near the third section is the same as the depth of the third section, and the depth of the other end of the first section is the same as the depth of the fourth section. A smooth transition slope is provided in the first section.

[0014] Optionally, the extrusion block is located within the area enclosed by the first section, the second section, the third section, and the fourth section, and is positioned close to the second section; both ends of the extrusion block are provided with inclined surfaces.

[0015] Optionally, the power mechanism includes a power motor, a transmission chain, and two sprockets; the power motor is fixedly mounted on the drawing die base, the two sprockets are rotatably mounted on the drawing die base at intervals, and the transmission chain is wound around the two sprockets; the sliding seat is fixedly connected to the transmission chain through a connecting plate; the power motor drives the sprockets to rotate forward and backward, thereby driving the two clamping mechanisms to move synchronously in opposite directions.

[0016] Optionally, a drawing bracket for providing support for the copper tube is also fixed on the drawing die.

[0017] The beneficial effects of the present invention are as follows: In actual use, the portable copper tube drawing machine of the present invention inserts the copper tube into the drawing die base, and drives two clamping mechanisms to continuously and synchronously reciprocate in opposite directions through the power mechanism. At the same time, through the cooperation of the extrusion block and the drive groove, the two clamping mechanisms switch between clamping and non-clamping states respectively. When the clamping mechanism is in the clamping state, the clamping mechanism clamps and pulls the copper tube. When the clamping mechanism is in the non-clamping state, the clamping mechanism releases the copper tube. In this way, the two clamping mechanisms alternately clamp and pull the copper tube inserted into the drawing die base, realize continuous drawing operation, and improve the drawing efficiency of copper tube. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a usage diagram of the present invention when one clamping mechanism is in a clamping state and the other clamping mechanism is in a non-clamping state;

[0020] Figure 3 This is a schematic diagram of the clamping mechanism of the present invention;

[0021] Figure 4 This is a cross-sectional schematic diagram of the clamping mechanism of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the clamping slider and the rotating block of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the drive rod of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the present invention, in which the drive groove is disposed on the top plate;

[0025] Explanation of reference numerals in the attached drawings: 1. Pull-out support; 11. Base plate; 12. Top plate; 13. Support column; 14. Drive groove; 141. First section; 142. Second section; 143. Third section; 144. Fourth section; 15. Guide rail; 21. Transmission chain; 22. Sprocket; 3. Clamping mechanism; 31. Sliding seat; 32. Clamping slide; 321. First spring; 322. First locking pin; 323. Connecting... 324. Connecting rod; 33. Fourth spring; 34. Rotating block; 35. Second locking pin; 36. Third locking pin; 37. Drive rod; 38. Second spring; 39. Spiral groove; 30. Roller; 31. Clamping block; 32. Push rod; 33. Third spring; 34. Clamping slider; 35. Horizontal strip hole; 36. Connecting plate; 4. Pulling die base; 5. Extrusion block; 57. Inclined surface; 6. Pulling bracket. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not to limit the scope of the invention to this.

[0027] like Figures 1 to 7 As shown, the portable copper tube drawing machine described in this embodiment includes a drawing support 1; the drawing support 1 includes a base plate 11 and a top plate 12, and support columns 13 are connected to the four corners of the base plate 11 and the four corners of the top plate 12 respectively, so that an installation space for installing a power mechanism is formed between the base plate 11 and the top plate 12.

[0028] The portable copper tube drawing machine also includes a power mechanism mounted on the top plate 12 of the drawing support 1, and two clamping mechanisms 3 centrally symmetrically mounted on the top surface of the top plate 12 of the drawing support 1; a drawing die base 4 is provided in the middle of the top plate 12 of the drawing support 1; the two clamping mechanisms 3 are respectively connected to the power mechanism; the power mechanism is configured to drive the two clamping mechanisms 3 to move synchronously in opposite directions.

[0029] The top plate 12 of the pull-out support 1 is provided with pressing blocks 5 and driving grooves 14 on both sides; the pressing blocks 5 and driving grooves 14 are configured to switch between clamping and non-clamping states during the reciprocating motion of the clamping mechanism 3.

[0030] Specifically, in actual use, the portable copper tube drawing machine of this embodiment inserts the copper tube into the drawing die 4. The power mechanism drives the two clamping mechanisms 3 to continuously and synchronously reciprocate in opposite directions. At the same time, through the cooperation of the extrusion block 5 and the drive groove 14, the two clamping mechanisms 3 switch between clamping and non-clamping states respectively. When the clamping mechanism 3 is in the clamping state, the clamping mechanism 3 clamps and pulls the copper tube. When the clamping mechanism 3 is in the non-clamping state, the clamping mechanism 3 releases the copper tube. In this way, the two clamping mechanisms 3 alternately clamp and pull the copper tube inserted into the drawing die 4, realize continuous drawing operation, and improve the drawing efficiency of copper tube.

[0031] like Figures 1 to 6 As shown, in some embodiments of the portable copper tube drawing machine of this embodiment, the clamping mechanism 3 includes a sliding seat 31 slidably disposed on the drawing support 1, a clamping slide 32 slidably disposed on the sliding seat 31, a rotating block 33 rotatably disposed on one end of the clamping slide 32, a driving rod 34 slidably disposed inside the clamping slide 32, a roller 35 connected to the driving rod 34, and two clamping blocks 36 disposed vertically opposite to one end of the clamping slide 32.

[0032] A first spring 321 is provided between the clamping slide 32 and the sliding seat 31. The rotating block 33 is slidably hinged to the two clamping blocks 36. One end of the drive rod 34 is movably connected to the rotating block 33 to drive the rotating block 33 to rotate. The rotation of the rotating block 33 will drive the clamping blocks 36 to slide up and down. A second spring 341 is provided between one end of the drive rod 34 and the clamping slide 32. The other end of the drive rod 34 is connected to the roller 35. The roller 35 is used to movably abut against the extrusion block 5. The other end of the clamping slide 32 is elastically connected to a first locking pin 322 that is movably embedded in the drive groove 14.

[0033] Specifically, when the power mechanism drives the clamping mechanism 3 to move away from the drawing die base 4 via the sliding seat 31, the first locking pin 322 engages with the drive groove 14, driving the clamping slide 32 to slide inward relative to the sliding seat 31. The clamping slide 32 drives the clamping block 36 to move towards the copper tube, compressing the first spring 321. As the sliding seat 31 continues to slide, the roller 35 begins to contact the extrusion block 5. The extrusion block 5 applies extrusion force to the drive rod 34 through the roller 35, thereby pushing the drive rod 34 to slide relative to it. The second spring 341 is compressed. During the sliding process, the drive rod 34 drives the rotating block 33 to rotate. The rotating block 33 drives the two clamping blocks 36 to move towards each other, so that the two clamping blocks 36 clamp the copper tube. At this time, the clamping mechanism 3 is in the clamping state, and the other clamping mechanism 3 is in the non-clamping state. Figure 2 As shown; as the sliding seat 31 slides further, the pressing block 5 and the roller 35 remain in contact, so that the two clamping blocks 36 keep clamping the copper tube, thereby realizing the clamping and pulling operation of the copper tube.

[0034] After the sliding seat 31 slides away from the drawing die seat 4 and into position, the roller 35 disengages from the extrusion block 5. At this time, the second spring 341 resets and deforms, and the drive rod 34 slides in the opposite direction, thereby driving the rotating block 33 to rotate in the opposite direction, causing the two clamping blocks 36 to move away from each other, thus releasing the copper tube. Then the first spring 321 resets, and the clamping slide 32 slides outward relative to the sliding seat 31, that is, it drives the two clamping blocks 36 to move away from the copper tube. At this time, the clamping mechanism 3 is in a non-clamping state, while the other clamping mechanism 3 is in a clamping state. In this way, the continuous reciprocating motion of the clamping mechanism 3 realizes the continuous drawing operation of the copper tube, resulting in high production efficiency.

[0035] like Figures 1 to 3 As shown, in this embodiment, the number of first springs 321 is preferably set to two, and the two first springs 321 are distributed side by side with intervals; this makes the movement of the clamping slide 32 more stable.

[0036] like Figure 4As shown, in some embodiments of the portable copper tube drawing machine, the clamping mechanism 3 further includes a top rod 37 slidably passing through the clamping slide 32. A third spring 371 is provided between one end of the top rod 37 and the other end of the drive rod 34. The other end of the top rod 37 extends outward through the other end of the clamping slide 32 and is connected to the roller 35. In this embodiment, by setting the top rod 37 to facilitate the connection between the roller 35 and the drive rod 34, and by providing the third spring 371 between the top rod 37 and the drive rod 34, the third spring 371 can compensate for the positional change of the roller 35 caused by the change in tube diameter when the clamping block 36 clamps copper tubes of different diameters. This avoids jamming between the roller 35 and the extrusion block 5, thus enabling the clamping mechanism 3 to perform clamping and drawing operations on copper tubes of different diameters, improving the flexibility of the drawing machine.

[0037] like Figures 4 to 6 As shown, in some embodiments of the portable copper tube drawing machine, one end of the drive rod 34 extends movably into the rotating block 33. The drive rod 34 has a spiral groove 342 at one end, and the inner wall of the rotating block 33 has a second locking pin 331 that is movably embedded in the spiral groove 342. Specifically, when the roller 35 contacts and abuts against the pressing block 5, the drive rod 34 compresses the second spring 341, and the second locking pin 331 moves relative to the spiral groove 342. This causes the drive rod 34 to drive the rotating block 33 to rotate through the cooperation of the spiral groove 342 and the second locking pin 331. The rotating block 33 then drives two clamping blocks 36 to move up and down in opposite directions, thereby clamping the copper tube.

[0038] After the roller 35 disengages from the pressing block 5, the second spring 341 and the third spring 371 reset. The second spring 341 pushes the drive rod 34 to slide in the opposite direction, causing the second locking pin 331 to move in the opposite direction along the trajectory of the spiral groove 342, thereby driving the rotating block 33 to rotate in the opposite direction. The rotating block 33 drives the two clamping blocks 36 to move away from each other, thereby releasing the copper tube.

[0039] like Figure 3 and Figure 4 As shown, in some embodiments of the portable copper tube drawing machine, the clamping slide 32 has two clamping sliders 38 slidably mounted on one end, and two clamping blocks 36 are correspondingly mounted on the two clamping sliders 38. Each clamping slider 38 has a horizontal slot 381, and the rotating block 33 has two third locking pins 332, which are movably embedded in the corresponding horizontal slot 381. Specifically, when the rotating block 33 rotates, it engages with the two horizontal slots 381 through the two third locking pins 332, thereby driving the two clamping blocks 36 to move up and down in opposite directions to clamp the copper tube; when the rotating block 33 rotates in the opposite direction, it engages with the two horizontal slots 381 through the two third locking pins 332, thereby driving the two clamping blocks 36 to move up and down away to release the copper tube.

[0040] like Figure 3 and Figure 4 As shown, in some embodiments of the portable copper tube drawing machine of this embodiment, a connecting rod 323 extends vertically downward from the other end of the clamping slide 32; a sliding hole is provided at the end of the connecting rod 323; a fourth spring 324 is provided in the sliding hole; a first locking pin 322 extends movably into the sliding hole and abuts against the fourth spring 324. This embodiment, by providing the connecting rod 323, facilitates the installation of the first locking pin 322; by providing the fourth spring 324, it ensures that the first locking pin 322 remains engaged with the drive groove 14 throughout its movement, resulting in higher structural reliability.

[0041] like Figure 1 and Figure 2 As shown, in some embodiments of the portable copper tube drawing machine of this embodiment, the drawing support 1 is provided with guide rails 15 on both sides of the drawing die base 4; the sliding seat 31 is slidably connected to the guide rails 15. In this embodiment, by setting the guide rails 15, the sliding seat 31 is guided and limited, so that the movement stability of the sliding seat 31 is higher, thus making the clamping and drawing operation of the clamping block 36 on the copper tube more stable.

[0042] like Figure 1 , Figure 2 and Figure 7 As shown, in some embodiments of the portable copper tube drawing machine of this embodiment, the drive groove 14 includes a first section 141 and a second section 142 that are parallel to each other. A third section 143 is inclined between the end of the first section 141 near the drawing die base 4 and the end of the second section 142 near the drawing die base 4. A fourth section 144 is inclined between the end of the first section 141 away from the drawing die base 4 and the end of the second section 142 away from the drawing die base 4. The first section 141 is located on the side of the second section 142 near the center of the drawing die base 4, and the length of the first section 141 is less than the length of the second section 142. The depth of the third section 143 is greater than the depth of the second section 142 and the depth of the fourth section 144. The depth of the end of the first section 141 near the third section 143 is the same as the depth of the third section 143, and the depth of the other end of the first section 141 is the same as the depth of the fourth section 144. A smooth transition slope is provided in the first section 141.

[0043] Specifically, when the sliding seat 31 drives the clamping mechanism 3 to move away from the drawing die base 4, the first locking pin 322 is located in the third section 143. Under the elastic force of the first spring 321, the first locking pin 322 abuts against the end of the third section 143 away from the first section 141. As the sliding seat 31 moves away from the drawing die base 4, since the depth of the third section 143 is greater than the depth of the second section 142, the first locking pin 322 can only move along the trajectory of the third section 143. Furthermore, since the third section 143 is inclined, the length of the first section 141 is less than the length of the second section 142. This allows the drive groove 14 to pass through the first locking pin 322 during its movement along the third section 143. Pin 322 pushes the clamping slide 32, causing the first spring 321 to be compressed. The clamping slide 32 drives the two clamping blocks 36 to move toward the copper tube until the first locking pin 322 enters the first section 141 from the third section 143. The two clamping blocks 36 are aligned vertically with the copper tube, and the copper tube is located between the two clamping blocks 36. The slide 31 continues to move away from the drawing die 4. The first locking pin 322 moves along the trajectory of the first section 141 until the roller 35 contacts the extrusion block 5. The extrusion block 5 compresses the third spring 371 of the push rod 37 and pushes the drive rod 34 to compress the second spring 341 to slide. This causes the rotating block 33 to drive the two clamping blocks 36 to move toward each other to clamp the copper tube.

[0044] The smooth transition slope allows the first locking pin 322 to move smoothly within the first section 141 until it reaches the junction of the first section 141 and the fourth section 144. At this point, the roller 35 disengages from the pressing block 5, and the second spring 341 and the third spring 371 reset, causing the two clamping blocks 36 to release the copper tube. Then, the first spring 321 resets, pushing the clamping slide 32 away from the copper tube, causing the first locking pin 322 to move along the trajectory of the fourth section 144 until it enters the second section 142. The slide 31 then slides in the opposite direction, and the first locking pin 322 moves along the trajectory of the second section 142 until it re-enters the third section 143. This process is repeated, allowing the clamping mechanism 3 to continuously and intermittently clamp and pull the copper tube.

[0045] like Figure 1 and Figure 2As shown, in some embodiments of the portable copper tube drawing machine of this embodiment, the extrusion block 5 is located within the area formed by the first section 141, the second section 142, the third section 143, and the fourth section 144, and is positioned close to the second section 142; both ends of the extrusion block 5 are provided with inclined surfaces 51. In this embodiment, by providing inclined surfaces 51, when the sliding seat 31 moves away from the drawing die 4, the roller 35 contacts the inclined surface 51 at one end of the extrusion block 5, and the extrusion block 5 applies extrusion force to the roller 35 through the inclined surface 51, thereby driving the clamping action of the two clamping blocks 36. When the sliding seat 31 moves away from the drawing die 4 and is in position, the roller 35 contacts the inclined surface 51 at the other end of the extrusion block 5, so that the second spring 341 and the third spring 371 gradually recover their deformation, thereby realizing the release action of the two clamping blocks 36.

[0046] like Figure 1 and Figure 2 As shown, in some embodiments of the portable copper tube drawing machine, the power mechanism includes a power motor (not shown in the figure), a transmission chain 21, and two sprockets 22. The power motor is fixedly mounted on the drawing die base 4, and the two sprockets 22 are rotatably mounted on the drawing die base 4 at intervals. The transmission chain 21 is wound around the two sprockets 22. The sliding seat 31 is fixedly connected to the transmission chain 21 through a connecting plate 39. The power motor drives the sprockets 22 to rotate forward and backward, thereby driving the two clamping mechanisms 3 to move synchronously in opposite directions. Specifically, the power motor is fixedly mounted on the bottom surface of the top plate 12, and the two sprockets 22 are rotatably mounted at both ends of the top plate 12. In this embodiment, the power motor drives the sprockets 22 to rotate, thereby driving the transmission chain 21 to rotate. The transmission chain 21 drives the two clamping mechanisms 3 to move synchronously in opposite directions. Thus, through the continuous forward and reverse rotation of the power motor, the transmission chain 21 drives the two clamping mechanisms 3 to move synchronously in opposite directions, thereby realizing that the two clamping mechanisms 3 alternately clamp and draw the copper tube.

[0047] like Figure 1 and Figure 2 As shown, in some embodiments of the portable copper tube drawing machine, the drawing die base 4 is further fixed with a drawing bracket 6 for providing support for the copper tube. This embodiment ensures the horizontality of the copper tube by setting the drawing bracket 6, thereby guaranteeing reliable drawing and forming of the copper tube.

[0048] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made to the structure, features and principles described in the claims of this patent application are included within the protection scope of this patent application.

Claims

1. A portable copper tube drawing machine, characterized in that, It includes a drawing support and a power mechanism disposed on the drawing support, as well as two clamping mechanisms centrally symmetrically disposed on the top of the drawing support; a drawing die seat is disposed in the middle of the drawing support; the two clamping mechanisms are respectively connected to the power mechanism; the power mechanism is configured to drive the two clamping mechanisms to reciprocate synchronously in opposite directions; the clamping mechanism includes a sliding seat slidably disposed on the drawing support, a clamping slide slidably disposed on the sliding seat, a rotating block rotatably disposed at one end of the clamping slide, a drive rod slidably disposed inside the clamping slide, a roller connected to the drive rod, and two clamping blocks disposed vertically opposite each other at one end of the clamping slide; Both sides of the top of the pull-out support are provided with extrusion blocks and drive grooves; the extrusion blocks and drive grooves are configured to switch between clamping and non-clamping states during the reciprocating motion of the clamping mechanism. A first spring is provided between the clamping slide and the sliding seat. The rotating block is slidably hinged to the two clamping blocks. One end of the drive rod is movably connected to the rotating block to drive the rotating block to rotate. The rotation of the rotating block will drive the clamping blocks to slide up and down. A second spring is provided between one end of the drive rod and the clamping slide. The other end of the drive rod is connected to the roller. The roller is used to movably abut against the extrusion block. The other end of the clamping slide is elastically connected to a first locking pin that is movably embedded in the drive groove. The drive groove includes a first section and a second section that are parallel to each other. An inclined third section is connected between the end of the first section near the drawing die base and the end of the second section near the drawing die base. An inclined fourth section is connected between the end of the first section away from the drawing die base and the end of the second section away from the drawing die base. The first section is located on the side of the second section near the center of the drawing die base, and the length of the first section is less than the length of the second section. The depth of the third section is greater than the depth of the second section and the depth of the fourth section. The depth of the end of the first section near the third section is the same as the depth of the third section, and the depth of the other end of the first section is the same as the depth of the fourth section. A smooth transition slope is provided in the first section.

2. The portable copper tube drawing machine according to claim 1, characterized in that, The clamping mechanism also includes a push rod that slides through the clamping slide. A third spring is provided between one end of the push rod and the other end of the drive rod. The other end of the push rod extends outward through the other end of the clamping slide and is connected to the roller.

3. A portable copper tube drawing machine according to claim 1, characterized in that, One end of the drive rod extends movably into the rotating block, and the drive rod has a spiral groove. The inner wall of the rotating block has a second locking pin that is movably embedded in the spiral groove.

4. A portable copper tube drawing machine according to claim 1, characterized in that, Two clamping sliders are slidably provided at one end of the clamping slide block, and two clamping blocks are provided one-to-one with the two clamping sliders; each clamping slider is provided with a horizontal strip hole, and the rotating block is provided with two third locking pins, which are movably embedded in the corresponding horizontal strip hole.

5. A portable copper tube drawing machine according to claim 1, characterized in that, A connecting rod extends vertically downward from the other end of the clamping slide; a sliding hole is provided at the end of the connecting rod; a fourth spring is provided in the sliding hole; a first locking pin extends movably into the sliding hole and abuts against the fourth spring.

6. A portable copper tube drawing machine according to claim 1, characterized in that, The drawing support has guide rails on both sides of the drawing die base; the sliding seat is slidably connected to the guide rails.

7. A portable copper tube drawing machine according to claim 6, characterized in that, The extrusion block is located within the area enclosed by the first, second, third, and fourth sections and is positioned close to the second section; both ends of the extrusion block have inclined surfaces.

8. A portable copper tube drawing machine according to claim 1, characterized in that, The power mechanism includes a power motor, a transmission chain, and two sprockets; the power motor is fixedly mounted on the drawing die base, the two sprockets are rotatably mounted on the drawing die base at intervals, and the transmission chain is wound around the two sprockets; the sliding seat is fixedly connected to the transmission chain through a connecting plate; the power motor drives the sprockets to rotate forward and backward, thereby driving the two clamping mechanisms to move synchronously in opposite directions.

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