Telescopic punch of prebaked anode for producing electrolytic aluminum

By designing a telescopic punch, using the combination of slide grooves, slide rods and transmission slides, combined with springs and adjustment devices, the problems of high cost and inflexibility of stamping molds in the prior art are solved, and electrolysis of different specifications is achieved Flexibility and efficiency of pre-baked anodes for aluminum.

CN222491767UActive Publication Date: 2025-02-18JINAN WANRUI CARBON +1
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Patent Information

Application Number
CN202420434772.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-06
Publication Date
2025-02-18
Estimated Expiration
2034-03-06

AI Technical Summary

Technical Problem

In the prior art, stamping molds for producing pre-baked anodes for electrolytic aluminum require the design of corresponding molds according to the anode of different specifications, resulting in high cost and inflexibility.

Method used

Design a telescopic punch, by providing a first slide groove and a second slide groove in the punch, and using a combination of a telescopic slide rod and a transmission slider, combining a spring and an adjustment device, the adjustment of the hedge head rod is realized, and the adjustment of the hedge head rod is achieved, supporting Production of pre-baked anodes with groove depths of different specifications.

Benefits of technology

This technology effectively reduces mold costs, supports the production of pre-baked anodes of various specifications, and improves production flexibility and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a telescopic punch of a prebaked anode for producing electrolytic aluminum, which comprises a punch provided with a first sliding chute along the axial direction, and the first sliding chute is communicated with a plurality of second sliding chutes which are arranged in the punch and radially extend along the cross section of the punch. A telescopic sliding rod used for forming a groove in the inner side wall of the prebaked anode and a transmission sliding block connected with the telescopic sliding rod are slidably connected into the second sliding groove, one end of the telescopic sliding rod extends out of the punch, the other end of the telescopic sliding rod is provided with the transmission sliding block, and the side, facing the first sliding groove, of the transmission sliding block is provided with an inclined face facing upwards. A first spring for pushing the transmission sliding block to move inwards is arranged between the transmission sliding block and the punch; the punch is connected with a connecting base, the connecting base is connected with a punch rod driving mechanism, the punch rod driving mechanism is connected with a punch rod arranged in the first sliding groove in a sliding mode, and the end of the punch rod is provided with an inclined face corresponding to the transmission sliding block. The device is suitable for production of prebaked anodes of various specifications, and the production cost can be effectively reduced.
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Description

Technical Field

[0001] The utility model relates to the field of prebaked anode stamping dies for electrolytic aluminum, in particular to a telescopic punch for producing prebaked anodes for electrolytic aluminum. Background Art

[0002] Prebaked anodes are also called carbon for aluminum. They are one of the main raw materials for electrolytic aluminum. Electrolytic aluminum enterprises need about 0.49 tons of prebaked anodes to produce 1 ton of electrolytic aluminum. They are irreplaceable consumable materials in the current aluminum electrolysis process and important consumables in the aluminum smelting process. Prebaked anodes have good electrical conductivity and high temperature corrosion resistance, and are called the "heart" of the electrolytic cell. Therefore, the quality of the anode directly affects the current efficiency of the electrolytic cell, anode consumption, and the quality of the original aluminum.

[0003] The specific production process of prebaked anodes is to use petroleum coke, a byproduct of petrochemical industry, as aggregate, and coal tar, a byproduct of coal chemical industry, as binder, which are mixed and molded into green bodies of a certain shape. After heat treatment, the binder is carbonized to obtain anode products with high mechanical strength and oxidation resistance, thereby producing anode products with low resistivity. The prebaked anode molding process often adopts a stamping process. In order to ensure the bonding performance between the prebaked anode and the anode connection part, it is necessary to punch a fixing groove in the prebaked anode. When the specifications of different anode connection parts are different, prebaked anodes of different specifications are required, which also requires stamping dies of different specifications. The comprehensive cost of designing corresponding stamping dies for prebaked anodes of different specifications is high. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a telescopic punch for producing prebaked anodes for electrolytic aluminum.

[0005] The utility model provides a telescopic punch for producing prebaked anodes for electrolytic aluminum, comprising: a punch, the punch is provided with a first slide groove along the axial direction, the first slide groove is connected to a plurality of second slide grooves arranged in the punch and extending radially along the cross section of the punch, a telescopic slide rod for molding a groove on the inner side wall of the prebaked anode and a transmission slider connected to the telescopic slide rod are slidably connected in the second slide groove, one end of the telescopic slide rod extends out of the punch, the other end of the telescopic slide rod is provided with the transmission slider, the transmission slider is provided with an inclined surface facing upward on one side of the transmission slider facing the first slide groove, and a first spring for pushing the transmission slider to move inward is provided between the transmission slider and the punch;

[0006] The punch is connected to a connecting seat, the connecting seat is connected to a punch rod driving mechanism, the punch rod driving mechanism is connected to a punch rod slidably arranged in the first sliding groove, and an end of the punch rod is provided with an inclined surface corresponding to the transmission slider.

[0007] Furthermore, the punch includes a punch seat and a punch cap, and the punch seat supports screwing punch caps of different specifications.

[0008] Furthermore, the telescopic slide rod includes a fixing bolt connected to the transmission slider, and the fixing bolt supports threaded connection of slide rod sleeves of different specifications, and corresponding to the slide rod sleeves of different specifications, slide sleeves of different apertures arranged on the punch are provided to support disassembly and assembly.

[0009] Furthermore, two first plug rods are arranged on the transmission slider, the first plug rods are arranged on the upper and lower sides of the telescopic slider, and the neck of the second slide groove is provided with first slots corresponding to the two first plug rods, and the first plug rods are inserted into the first slots.

[0010] Furthermore, the first spring is sleeved on the outside of the telescopic slide rod, one end of the first spring abuts against the transmission slider, and the other end abuts against the neck of the second slide groove; or the first spring is sleeved on the outside of the first plug rod, one end of the first spring abuts against the transmission slider, and the other end abuts against the neck of the second slide groove.

[0011] Furthermore, a second rod is arranged in the first slide groove, and a second slot corresponding to the second rod is arranged on the punch rod. When the punch rod slides in the first slide groove, the second rod is inserted into the second slot, and a second spring is arranged between the second rod and the punch rod.

[0012] Furthermore, the first spring is sleeved on the outside of the telescopic slide rod, one end of the first spring abuts against the transmission slider, and the other end abuts against the necking portion of the second slide groove.

[0013] Furthermore, a plurality of adjusting bolts are rotatably provided at the end of the transmission slider, the adjusting bolts are threadedly connected to an annular adjusting piece, the annular adjusting piece is sleeved outside the telescopic slide rod, and the adjusting bolts are used to adjust the distance between the annular adjusting piece and the transmission slider.

[0014] The above technical solution provided by the embodiment of the utility model has the following advantages compared with the prior art:

[0015] In the utility model, the punch is provided with a first slide groove along the axial direction, the first slide groove is connected to a plurality of second slide grooves arranged in the punch and extending radially along the cross section of the punch, the second slide groove is slidably connected with a telescopic slide rod and a transmission slider connected to the telescopic slide rod for plasticizing a groove on the inner wall of the prebaked anode, one end of the telescopic slide rod extends out of the punch, the other end of the telescopic slide rod is provided with the transmission slider, the transmission slider is provided with an inclined surface facing upwards on the side of the first slide groove, and a first spring is provided between the transmission slider and the punch to push the transmission slider to move inward; the punch is connected to a connecting seat, the connecting seat is connected to a punch rod driving mechanism, the punch rod driving mechanism is connected to a punch rod slidably arranged in the first slide groove, and the end of the punch rod is provided with an inclined surface corresponding to the transmission slider. The present application supports the production of prebaked anodes with groove depths of different specifications by adjusting the position of the punch rod and adjusting the extended length of the telescopic slide rod, which can effectively reduce the mold cost.

[0016] In the utility model, the punch support can be changed in specifications by replacing the punch cap, and the telescopic slide rod support can be changed in specifications by replacing the slide rod sleeve, so as to adapt to the production of prebaked anodes of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A schematic diagram of a telescopic punch for producing prebaked anodes for electrolytic aluminum provided by the utility model;

[0020] Figure 2 A schematic diagram of a telescopic punch for producing prebaked anodes for electrolytic aluminum provided by the utility model, wherein the punch cap, the slide rod sleeve and the slide sleeve are adjustable;

[0021] Figure 3 A schematic diagram of a telescopic punch for producing prebaked anodes for electrolytic aluminum provided by the utility model, which is configured with a first insert rod and a first slot to make the telescopic slide rod more stable;

[0022] Figure 4 A schematic diagram of another telescopic punch for producing prebaked anodes for electrolytic aluminum provided by the utility model, which is configured with a first insert rod and a first slot to make the telescopic slide rod more stable;

[0023] Figure 5 A schematic diagram of a telescopic punch for producing prebaked anodes for electrolytic aluminum with an adjustable tightness of a first spring provided by the utility model.

[0024] The symbols and their meanings in the figure are as follows:

[0025] 1. punch, 11. first slide groove, 12. second insertion rod, 13. second slide groove, 14. first slot, 15. punch seat, 16. punch cap, 17. sliding sleeve;

[0026] 2. telescopic slide rod, 21. transmission slide block, 22. fixing bolt, 23. slide rod sleeve, 24. annular adjustment sheet, 25. adjustment bolt;

[0027] 3. Connecting seat;

[0028] 4. First spring;

[0029] 5. Punch rod driving mechanism, 51. Punch rod;

[0030] 6. Second spring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0033] Example 1

[0034] See also Figure 1 As shown, the embodiment of the utility model provides a telescopic punch for producing prebaked anodes for electrolytic aluminum, comprising:

[0035] A punch 1, which is cylindrical as a whole, is provided with a first chute 11 along the axial direction, the first chute 11 is connected to a plurality of second chute 13 arranged in the punch 1 and extending radially along the cross section of the punch, the cross section of the second chute 13 is convex, and a telescopic slide rod 2 for giving a groove to the inner wall of the prebaked anode and a transmission slider 21 connected to the telescopic slide rod 2 are slidably connected in the second chute 13, one end of the telescopic slide rod 2 extends out of the punch 1, and the other end of the telescopic slide rod 2 is provided with the transmission slider 21, and the transmission slider 21 is provided with an inclined surface facing upward on the side of the first chute 11; a first spring 4 is provided between the transmission slider 21 and the punch 1 to push the transmission slider 21 to move inward, Figure 1 In the given example, the first spring 4 is sleeved on the outside of the telescopic slide rod 2 , one end of the first spring 4 abuts against the transmission slider 21 , and the other end abuts against the necking portion of the second slide groove 13 .

[0036] The punch 1 is connected to a connecting seat 3, which is used to fix the punch 1 on the punching mechanism on one hand, and is connected to a punch rod driving mechanism 5 on the other hand, and the punch rod driving mechanism 5 is connected to a punch rod 51 slidably arranged in the first slide groove 11, and the end of the punch rod 51 is provided with an inclined surface corresponding to the transmission slide block 21, and when the punch rod 51 moves downward, it pushes the transmission slide block 21 to move radially outward of the punch along the punch cross section. An exemplary punch rod driving mechanism 5 adopts a hydraulic telescopic rod.

[0037] A second insertion rod 12 is arranged in the first sliding groove 11, and a second slot corresponding to the second insertion rod 12 is arranged on the punch rod 51. When the punch rod 51 slides in the first sliding groove 11, the second insertion rod 12 is inserted into the second slot, and a second spring 6 is arranged between the second insertion rod and the punch rod 51.

[0038] The present application provides a telescopic slide rod 2 with controllable telescopic length, which supports the stamping of prebaked anodes for electrolytic aluminum with various groove specifications.

[0039] Example 2

[0040] See also Figure 2 As shown, the present application provides a telescopic punch for producing prebaked anodes for electrolytic aluminum, comprising:

[0041] The punch 1 is cylindrical in shape as a whole and comprises a punch seat 15 and a punch cap 16 . The punch seat 15 supports the punch caps 16 of different specifications to be screwed.

[0042] The punch seat 15 is provided with a first chute 11 along the axial direction, and the first chute 11 is connected to a plurality of second chute 13 which are provided in the punch seat 15 and extend radially along the cross section of the punch. Figure 2 In the example given, one end of the second slide groove 13 supports a sleeve 17 with different apertures, and the second slide groove 13 and the sleeve 17 are slidably connected to a telescopic slide rod 2 for forming a groove on the inner wall of the prebaked anode and a transmission slider 21 connected to the telescopic slide rod 2. Figure 2 In the given example, the telescopic slide rod 2 includes a fixing bolt 22 connected to the transmission slider 21, and the fixing bolt 22 supports the threaded connection of slide rod sleeves 23 of different specifications. Corresponding to the slide rod sleeves 23 of different specifications, slide sleeves 17 of different apertures arranged on the punch seat 15 are provided to support disassembly and assembly.

[0043] The punch 1 is extended from one end of the telescopic slide rod 2, and the transmission slide 21 is arranged at the other end of the telescopic slide rod 2. The transmission slide 21 is provided with an inclined surface facing upward on the side facing the first slide groove 11; a first spring 4 is arranged between the transmission slide 21 and the punch 1 to push the transmission slide 21 to move inward. Figure 2 In the given example, the first spring 4 is sleeved on the outside of the telescopic slide rod 2 , one end of the first spring 4 abuts against the transmission slider 21 , and the other end abuts against the necking portion of the second slide groove 13 .

[0044] The punch 1 is connected to a connecting seat 3. The connecting seat 3 is used to fix the punch 1 on the punching mechanism on one hand, and the connecting seat 3 is connected to a punch rod driving mechanism 5 on the other hand. The punch rod driving mechanism 5 is connected to a punch rod 51 slidably arranged in the first slide groove 11. The end of the punch rod 51 is provided with an inclined surface corresponding to the transmission slide block 21. When the punch rod 51 moves downward, it pushes the transmission slide block 21 to move radially outward from the punch along the punch cross section. An exemplary punch rod driving mechanism 5 adopts a hydraulic telescopic rod. The detachable punch caps 16 of different specifications, the detachable slide rod sleeve 23 and the slide sleeve 17 enable the telescopic punch for producing prebaked anodes for electrolytic aluminum to support a variety of prebaked anodes for electrolytic aluminum of different specifications, and have a wider range of applications.

[0045] Example 3

[0046] See also Figure 3 and Figure 4 As shown, the embodiment of the utility model provides a telescopic punch for producing prebaked anodes for electrolytic aluminum, comprising:

[0047] Punch 1, the punch 1 is cylindrical as a whole, and the punch 1 is provided with a first slide groove 11 along the axial direction, the first slide groove 11 is connected to a plurality of second slide grooves 13 arranged in the punch 1 and extending radially along the cross section of the punch, the cross section of the second slide groove 13 is convex, and the second slide groove 13 is slidably connected with a telescopic slide rod 2 for making a groove on the inner wall of the prebaked anode and a transmission slider 21 connected to the telescopic slide rod 2, one end of the telescopic slide rod 2 extends out of the punch 1, and the other end of the telescopic slide rod 2 is provided with the transmission slider 21, and the transmission slider 21 is provided with an inclined surface facing upward on the side of the transmission slider 21 facing the first slide groove 11; a first spring 4 is provided between the transmission slider 21 and the punch 1 to push the transmission slider 21 to move inward. Figure 3 and Figure 4 In the given example, in order to increase the stability of the transmission slider 21 and the telescopic slide rod 2, two first plug rods are arranged on the transmission slider 21, and the first plug rods are arranged on the upper and lower sides of the telescopic slide rod 2. A first slot 14 corresponding to the two first plug rods is arranged at the necking part of the second slide groove 13, and the first plug rod is inserted into the first slot 14.

[0048] exist Figure 3 In the example given, the first spring 4 is sleeved on the outside of the telescopic slide rod 2, one end of the first spring 4 abuts against the transmission slider 21, and the other end abuts against the neck of the second slide groove 13. Figure 4 In the given example, the first spring 4 is sleeved outside the first insertion rod, one end of the first spring 4 abuts against the transmission slider 21 , and the other end abuts against the neck of the second sliding groove 13 .

[0049] The punch 1 is connected to a connecting seat 3, which is used to fix the punch 1 on the punching mechanism on one hand, and is connected to a punch rod driving mechanism 5 on the other hand, and the punch rod driving mechanism 5 is connected to a punch rod 51 slidably arranged in the first slide groove 11, and the end of the punch rod 51 is provided with an inclined surface corresponding to the transmission slide block 21, and when the punch rod 51 moves downward, it pushes the transmission slide block 21 to move radially outward of the punch along the punch cross section. An exemplary punch rod driving mechanism 5 adopts a hydraulic telescopic rod.

[0050] A second insertion rod 12 is arranged in the first sliding groove 11, and a second slot corresponding to the second insertion rod 12 is arranged on the punch rod 51. When the punch rod 51 slides in the first sliding groove 11, the second insertion rod 12 is inserted into the second slot, and a second spring 6 is arranged between the second insertion rod and the punch rod 51.

[0051] Example 4

[0052] See also Figure 5As shown, the embodiment of the utility model provides a telescopic punch for producing prebaked anodes for electrolytic aluminum, comprising: a punch 1, the punch 1 is cylindrical as a whole, the punch 1 is provided with a first slide groove 11 along the axial direction, the first slide groove 11 is connected to a plurality of second slide grooves 13 arranged in the punch 1 and extending radially along the cross section of the punch, the cross section of the second slide groove 13 is convex, the second slide groove 13 is slidably connected with a telescopic slide rod 2 for giving a groove to the inner wall of the prebaked anode and a transmission slider 21 connected to the telescopic slide rod 2, one end of the telescopic slide rod 2 extends out of the punch 1, the other end of the telescopic slide rod 2 is provided with the transmission slider 21, and the transmission slider 21 is provided with an inclined surface facing upward on the side of the transmission slider 21 facing the first slide groove 11; a first spring 4 is provided between the transmission slider 21 and the punch 1 to push the transmission slider 21 to move inward, Figure 1 In the given example, the first spring 4 is sleeved on the outside of the telescopic slide rod 2 , one end of the first spring 4 abuts against the transmission slider 21 , and the other end abuts against the necking portion of the second slide groove 13 .

[0053] The punch 1 is connected to a connecting seat 3, which is used to fix the punch 1 on the punching mechanism on one hand, and is connected to a punch rod driving mechanism 5 on the other hand, and the punch rod driving mechanism 5 is connected to a punch rod 51 slidably arranged in the first slide groove 11, and the end of the punch rod 51 is provided with an inclined surface corresponding to the transmission slide block 21, and when the punch rod 51 moves downward, it pushes the transmission slide block 21 to move radially outward of the punch along the punch cross section. An exemplary punch rod driving mechanism 5 adopts a hydraulic telescopic rod.

[0054] A second insertion rod 12 is arranged in the first sliding groove 11, and a second slot corresponding to the second insertion rod 12 is arranged on the punch rod 51. When the punch rod 51 slides in the first sliding groove 11, the second insertion rod 12 is inserted into the second slot, and a second spring 6 is arranged between the second insertion rod and the punch rod 51.

[0055] Preferably, a plurality of adjusting bolts 25 are rotatably provided at the end of the transmission slider 21, and the adjusting bolts 25 are screwed to an annular adjusting piece 24, and the annular adjusting piece 24 is sleeved outside the telescopic slide 2. The adjusting bolts 25 are used to adjust the distance between the annular adjusting piece 24 and the transmission slider 21 to adjust the tightness of the first spring 4. When the telescopic slide 2 is extended to different lengths, the tightness of the first spring 4 is different, resulting in different extension lengths, which are prone to vibration. By adjusting the tightness of the first spring 4, the problem of vibration of the telescopic punch for producing prebaked anodes for electrolytic aluminum can be avoided when the telescopic slide is extended to a long length.

[0056] In the embodiments provided by the present utility model, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the description division of the circuit is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling shown or discussed can be an indirect coupling through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0057] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A telescopic punch for producing prebaked anodes for electrolytic aluminum, characterized in that: include: A punch (1), wherein the punch (1) is provided with a first slide groove (11) along the axial direction, the first slide groove (11) is connected to a plurality of second slide grooves (13) arranged in the punch (1) and extending radially along the cross section of the punch, a telescopic slide rod (2) used for forming a groove on the inner wall of the prebaked anode and a transmission slider (21) connected to the telescopic slide rod (2) are slidably connected in the second slide groove (13), one end of the telescopic slide rod (2) extends out of the punch (1), the other end of the telescopic slide rod (2) is provided with the transmission slider (21), the transmission slider (21) is provided with an inclined surface facing upward on the side of the transmission slider (21) facing the first slide groove (11), and a first spring (4) is provided between the transmission slider (21) and the punch (1) to push the transmission slider (21) to move inward; The punch (1) is connected to a connecting seat (3), the connecting seat (3) is connected to a punch rod driving mechanism (5), the punch rod driving mechanism (5) is connected to a punch rod (51) slidably arranged in the first sliding groove (11), and the end of the punch rod (51) is provided with an inclined surface corresponding to the transmission slider (21).

2. The telescopic punch for producing prebaked anodes for electrolytic aluminum according to claim 1, characterized in that: The punch (1) comprises a punch seat (15) and a punch cap (16), and the punch seat (15) supports the screw connection of punch caps (16) of different specifications.

3. The telescopic punch for producing prebaked anodes for electrolytic aluminum according to claim 1, characterized in that: The telescopic slide rod (2) comprises a fixing bolt (22) connected to the transmission slider (21), and the fixing bolt (22) supports threading of slide rod sleeves (23) of different specifications, and corresponding to the slide rod sleeves (23) of different specifications, slide sleeves (17) of different apertures arranged on the punch (1) are provided to support disassembly and assembly.

4. The telescopic punch for producing prebaked anodes for electrolytic aluminum according to claim 1, characterized in that: Two first insertion rods are arranged on the transmission slider (21), and the first insertion rods are arranged on the upper and lower sides of the telescopic slider (2). The neck of the second slide groove (13) is provided with first slots (14) corresponding to the two first insertion rods, and the first insertion rods are inserted into the first slots (14).

5. The telescopic punch for producing prebaked anodes for electrolytic aluminum according to claim 4, characterized in that: The first spring (4) is sleeved on the outside of the telescopic slide rod (2), one end of the first spring (4) abuts against the transmission slider (21), and the other end abuts against the neck of the second slide groove (13); or the first spring (4) is sleeved on the outside of the first insertion rod, one end of the first spring (4) abuts against the transmission slider (21), and the other end abuts against the neck of the second slide groove (13).

6. The telescopic punch for producing prebaked anodes for electrolytic aluminum according to claim 1, characterized in that: A second insertion rod (12) is arranged in the first sliding groove (11), and a second slot corresponding to the second insertion rod (12) is arranged on the punch rod (51). When the punch rod (51) slides in the first sliding groove (11), the second insertion rod (12) is inserted into the second slot, and a second spring (6) is arranged between the second insertion rod and the punch rod (51).

7. The telescopic punch for producing prebaked anodes for electrolytic aluminum according to claim 1, characterized in that: The first spring (4) is sleeved on the outside of the telescopic slide rod (2), one end of the first spring (4) abuts against the transmission slide block (21), and the other end abuts against the neck of the second slide groove (13).

8. The telescopic punch for producing prebaked anodes for electrolytic aluminum according to claim 1, characterized in that: A plurality of adjusting bolts (25) are rotatably provided at the end of the transmission slide block (21), the adjusting bolts (25) are threadedly connected to an annular adjusting piece (24), the annular adjusting piece (24) is sleeved outside the telescopic slide bar (2), and the adjusting bolts (25) are used to adjust the distance between the annular adjusting piece (24) and the transmission slide block (21).