CN221051744U - Single-drive bidirectional needle pulling device based on induction heating - Google Patents
Single-drive bidirectional needle pulling device based on induction heating Download PDFInfo
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- CN221051744U CN221051744U CN202322477148.1U CN202322477148U CN221051744U CN 221051744 U CN221051744 U CN 221051744U CN 202322477148 U CN202322477148 U CN 202322477148U CN 221051744 U CN221051744 U CN 221051744U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 71
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- 239000002184 metal Substances 0.000 claims description 29
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- 238000007906 compression Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000035699 permeability Effects 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims 8
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 13
- 230000033001 locomotion Effects 0.000 abstract description 3
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 4
- 206010016654 Fibrosis Diseases 0.000 description 3
- 230000004761 fibrosis Effects 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 238000002347 injection Methods 0.000 description 1
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- 238000000520 microinjection Methods 0.000 description 1
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Abstract
The invention discloses a single-drive bidirectional pull needle device based on induction heating, which comprises: the machine case is characterized in that a bottom plate is fixedly connected inside the machine case, a stepping motor is arranged at the lower part of the bottom plate, a precise gear is rotatably arranged at the output end of the stepping motor, and the precise gear is positioned at the upper part of the bottom plate. Through setting up the pull needle module, drive the rotation of precision gear through driving step motor, make the degree of turning of precision gear can realize the regulation of great scope, the time through the tensile step of setting and every step precision gear rotational speed control pull out the parameter of needle point, precision rack one and precision rack two of precision gear both sides meshing are vertical to be placed, two precision racks are along the reverse motion about the linear slide rail on the slider, the symmetrical pull needle of upper and lower two directions has been realized simultaneously through the drive of a step motor, the dyssynchrony of the tensile process in both ends has been avoided, also make two needle points of drawing all keep away from the heating source position simultaneously.
Description
Technical Field
The utility model relates to the technical field of a pull needle instrument, in particular to a stretcher based on induction heating and stretching at two ends.
Background
The needle pulling instrument can be used for preparing micro-injection needles in the cell injection operation process and transferring micro-probes of slices in the semiconductor device manufacturing process.
The existing needle drawing instrument product can also draw the micro needle, but the drawing process of the needle drawing instrument with two stretching ends is easy to be controlled by two independent drives, so that the drawing process is asynchronous, the precision of drawing the needle point is not enough, and meanwhile, a section of drawing needle drawing instrument can not draw two identical glass tube needle points at a time.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides a single-drive bidirectional pull needle device based on induction heating, which comprises: the machine comprises a machine case, wherein a bottom plate is fixedly connected in the machine case, a stepping motor is arranged at the lower part of the bottom plate, a precise gear is rotatably arranged at the output end of the stepping motor, the precise gear is positioned at the upper part of the bottom plate, and a precise rack I and a precise rack II are respectively arranged on the two sides of the precise gear in a matched manner in the vertical direction;
The first precise rack is fixedly connected with a first clamp support plate, the second precise rack is fixedly connected with a second clamp support plate, and the first clamp support plate and the second clamp support plate are in the same vertical direction.
Preferably, it is: the clamp is characterized in that a clamp seat I is arranged on the clamp support plate I, a clamp I is arranged in the clamp seat I, a clamp seat II is arranged on the clamp support plate II, a clamp II is arranged in the clamp seat II, scale knobs are movably arranged on the clamp I and the clamp II, and compression nuts are movably arranged on the upper parts of the clamp seat I and the clamp seat II.
Preferably, it is: the electromagnetic heating device is characterized in that a heater base is fixedly arranged on the bottom plate, an electromagnetic heating controller is fixedly arranged at the upper end of the heater base, a ceramic wiring terminal and an annular insulating support are arranged on the side part of the electromagnetic heating controller, an induction coil is connected to the ceramic wiring terminal, a magnetic conductivity metal sleeve is arranged in the annular end part of the annular insulating support, and the magnetic conductivity metal sleeve is positioned inside the induction coil.
Preferably, it is: the base plate is fixedly provided with a first linear slide rail and a second linear slide rail, the first linear slide rail and the second linear slide rail are symmetrically arranged on two sides of the precision gear in parallel in the vertical direction, two ends of the first linear slide rail and two ends of the second linear slide rail are respectively fixedly provided with an upper stop block, and the first linear slide rail and the second linear slide rail are respectively movably provided with two sliding blocks.
Preferably, it is: the device comprises a first linear slide rail, a second linear slide rail, a first rack clamp, a second rack clamp, a first precise rack, a second precise rack, a first screw nut and a second screw nut, wherein the first rack clamp is fixedly arranged on the two sliding blocks on the first linear slide rail, the second rack clamp is fixedly arranged on the two sliding blocks on the second linear slide rail, the two sliding blocks are respectively arranged at the upper end and the lower end of the first rack clamp and the upper end of the second rack clamp, and the first precise rack and the second precise rack are respectively fixedly arranged on the first rack clamp and the second rack clamp through the screw nuts.
Preferably, it is: the bottom plate is fixedly provided with a programmable controller, and the output end of the programmable controller is connected with the input end of the stepping motor.
Preferably, it is: the first clamp and the second clamp are movably provided with scale knobs, the first clamp is vertically downward provided with a three-jaw chuck, the second clamp is vertically upward provided with a three-jaw chuck, and the two three-jaw chucks are in a centering state in the vertical direction.
Preferably, it is: the two three-jaw chucks are clamped at two ends of the glass tube, the glass tube penetrates through the magnetic metal sleeve, and the magnetic metal sleeve is positioned in the middle of the glass tube.
Preferably, it is: the glass tube, the magnetic permeability metal sleeve and the induction coil are kept in concentric positions.
Needle pulling flow of single-drive bidirectional needle pulling device based on induction heating:
S1: clamping two ends of the glass tube on a first clamp and a second clamp, and rotating a scale knob to adjust a three-jaw chuck to clamp the glass tube;
S2: setting the heating time and the heating temperature of the magnetic conductivity metal sleeve in the induction coil by operating the electromagnetic heating controller, and adjusting and controlling according to the thickness of the drawing microneedle, wherein the heating temperature is 600-900 ℃;
S3: setting the stretching steps in the process of drawing the needle through operating a programmable controller, and setting the rotating speed of a precision gear in each stretching step and the time of each stretching step;
S4: starting a stepping motor and an electromagnetic heating controller to start drawing a needle at the same time after the heating time and the heating temperature set by S and the time and the precision gear rotating speed set by S in the stretching step, and finishing the needle drawing process in an up-down separation way;
S5: and rotating the scale knobs on the first clamp and the second clamp, and taking down the two sections of needle points after drawing.
The utility model has the advantages that:
1. According to the utility model, the needle pulling module is arranged, the stepping motor is driven to drive the precise gear to rotate, so that the rotation degree of the precise gear can be adjusted in a large range, the parameters of pulling out the needle point are controlled by the set time of the stretching step and the rotating speed of the precise gear in each step, the precise racks I and II meshed with the two sides of the precise gear are vertically arranged, the two precise racks move up and down along the linear sliding rail on the sliding block in opposite directions, the symmetrical needle pulling in the upper direction and the lower direction is simultaneously realized by the driving of one stepping motor, the asynchronous stretching process at the two ends is avoided, meanwhile, the two needle points pulled are far away from the position of the heating source, the needle point is prevented from being bent by the secondary heating of the needle point which is completed by the waste heat of the heating source, and the yield of the primary needle pulling and the precision of the needle point pulling are greatly improved.
2. According to the utility model, the induction heating module is arranged, the electromagnetic heating controller is arranged, and the magnetic conductivity metal sleeve is arranged in the induction coil, so that the metal sleeve is heated to heat the glass tube, only the position of the magnetic conductivity metal sleeve is heated in the induction coil, the heating area can be controlled by changing the length of the magnetic conductivity metal sleeve, the target is controlled below 2mm, the rotating speed of the precision gear can be adjusted in a larger range, the heating area is ensured to be small enough and the heating speed is high, the problem of fibrosis caused by the fact that the glass tube is pulled out of the needle point can be effectively solved, meanwhile, the induction heating has the advantages of high heating speed, high efficiency and uniform heating of a heated object, the preheating time of the glass tube is greatly prolonged, and the heating of the glass tube in the magnetic conductivity metal sleeve is more uniform.
3. According to the utility model, the glass tube clamping module is arranged, the glass tube is vertically and centrally placed through the two clamps, the glass tube is additionally held on the two three-jaw clamping heads and is also in a vertical state, so that the glass tube is subjected to tensile force in the up-down direction when being stretched, the bending phenomenon of a pulled needle point is avoided, the glass tube is in a state of being firmly clamped and not broken by adjusting the scale knob on the clamp to a certain value through experiments, the clamping of the glass tube can be conveniently and quickly completed by adjusting the scale knob to a certain value during subsequent needle drawing, the soft rubber layer is attached inside the three-jaw clamping heads on the clamp, the friction and buffer effects are increased on the glass tube, and meanwhile, the three-jaw clamping head structure enables the stress of the glass tube to be more uniform.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of the present utility model;
FIG. 2 is a schematic diagram of a portion of the electromagnetic heating controller of FIG. 1 according to the present utility model;
FIG. 3 is a partial schematic view of FIG. 1 according to the present utility model;
FIG. 4 is a front view of FIG. 1 in accordance with the present utility model;
fig. 5 is a partial schematic view of the first clamp of fig. 4 according to the present utility model.
Legend description:
1. A chassis; 101. a bottom plate; 102. a first linear slide rail; 103. a second linear slide rail; 104. a slide block; 105. a stop block; 106. a rack clamp I; 107. a rack clamp II; 108. screwing the nut; 109. a precise rack I; 110. a precise rack II; 111. a clamp support plate I; 112. a clamp support plate II; 113. a precision gear; 114. a stepping motor; 115. a programmable controller; 2. a clamp seat I; 201. a first clamp; 202. a second clamp; 203. a scale knob; 204. a three-jaw chuck; 205. a compression nut; 206. a clamp seat II; 3. a heater base; 301. an electromagnetic heating controller; 302. ceramic wiring terminals; 303. an annular insulating support; 304. an induction coil; 305. a magnetically permeable metal sleeve; 306. a glass tube.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
As shown in fig. 1, a single-drive bidirectional pull-pin device based on induction heating of the present utility model comprises: the machine case 1, the bottom plate 101 is fixedly connected inside the machine case 1, the step motor 114 is installed at the lower part of the bottom plate 101, the precise gear 113 is installed at the output end of the step motor 114 in a rotating mode, the precise gear 113 is located at the upper part of the bottom plate 101, the precise rack I109 and the precise rack II 110 are respectively installed on the two sides of the precise gear 113 in a matching mode in the vertical direction, the clamp support I111 is fixedly connected to the upper end of the precise rack I109, the clamp support II 112 is fixedly connected to the lower end of the precise rack II 110, the clamp support I111 and the clamp support II 112 are arranged in the same vertical direction, the linear slide rail I102 and the linear slide rail II 103 are fixedly installed on the bottom plate 101, the two sides of the precise gear 113 are symmetrically installed on the two sides of the linear slide rail I102 and the linear slide rail II 103 in a parallel mode in the vertical direction, the two ends of the linear slide rail I102 and the linear slide rail II 103 are respectively fixedly installed with the upper stop blocks 105, and the two sliding blocks 104 are respectively movably installed on the linear slide rail I102 and the linear slide rail II 103. A first rack clamp 106 is fixedly installed on two sliding blocks 104 on the first linear slide rail 102, a second rack clamp 107 is fixedly installed on two sliding blocks 104 on the second linear slide rail 103, the two sliding blocks 104 are respectively installed at the upper end and the lower end of the first rack clamp 106 and the upper end of the second rack clamp 107, and a first precise rack 109 and a second precise rack 110 are respectively fixedly installed on the first rack clamp 106 and the second rack clamp 107 through screw nuts 108.
As shown in fig. 3, a programmable controller 115 is fixedly installed on the bottom plate 101, and the output end of the programmable controller 115 is connected with the input end of a stepping motor 114; the first precise rack 109 and the second precise rack 110 meshed on two sides of the precise gear 113 are vertically arranged, the first precise rack 109 and the second precise rack 110 respectively do up-down reverse motion on the sliding block 104 along the first linear sliding rail 102 and the second linear sliding rail 103, and symmetrical needle drawing in the upper direction and the lower direction is simultaneously realized through the driving of the stepping motor 114, so that the asynchronous stretching process at two ends is avoided, simultaneously, two needle points drawn are far away from the heating source, the needle points drawn by waste heat of the heating source are also prevented from being bent due to the secondary heating of the needle points drawn, and the yield of the primary needle drawing and the precision of the needle points drawn are greatly improved.
As shown in fig. 4 and 5, in an embodiment of the present utility model, a first clamp seat 2 is installed on a first clamp support 111, a first clamp 201 is installed inside the first clamp seat 2, a second clamp seat 206 is installed on a second clamp support 112, a second clamp 202 is installed inside the second clamp seat 206, compression nuts 205 are movably installed on the upper portions of the first clamp seat 2 and the second clamp seat 206, scale knobs 203 are movably installed on the first clamp 201 and the second clamp 202, three-jaw chucks 204 on the first clamp 201 are vertically downward, three-jaw chucks 204 on the second clamp 202 are vertically upward, and two three-jaw chucks 204 are in a centered state in a vertical direction, and S1: clamping two ends of a glass tube 306 on a first clamp 201 and a second clamp 202, and rotating a scale knob 203 to adjust a three-jaw chuck 204 to clamp the glass tube 306; s2: setting the heating time and the heating temperature of the magnetically permeable metal sleeve 305 in the induction coil 304 by operating the electromagnetic heating controller 301, and adjusting and controlling according to the crude drawing microneedle, wherein the heating temperature is 600-900 ℃; s3: setting the stretching steps in the process of pulling the needle, as well as the rotation speed of the precision gear 113 in each stretching step and the time of each stretching step by operating the programmable controller 115; s4: after the heating time and the heating temperature set by S2 and the time of the stretching step and the rotating speed of the precision gear 113 set by S3, simultaneously starting the stepping motor 114 and the electromagnetic heating controller 301 to start the needle pulling, and completing the needle pulling process in an up-down separation manner; s5: rotating the scale knobs 203 on the first clamp 201 and the second clamp 202, and taking down the two needle points after drawing; through the vertical centering of anchor clamps one 201 and two 202, glass pipe 306 is held and is also in vertical state on two three-jaw chuck 204, receive the tensile in upper and lower orientation when making glass pipe 306 tensile, the needle point that has avoided drawing out appears crooked phenomenon, the inside soft rubber layer that is attached to of three-jaw chuck 204 on the anchor clamps plays increase friction and cushioning effect to adding glass pipe 306, simultaneously three-jaw chuck 204 structure makes glass pipe 306 atress more even, when adjusting scale knob 203 on the anchor clamps through the experiment to a certain value, make glass pipe 306 be in can firmly be cliied and not press apart the state, when repeating above step and drawing the needle next time, with the scale knob 203 of adjusting to the appointed value accomplish the clamp of glass pipe 306 fast, very big improvement the work efficiency of drawing needle device.
Embodiment two:
As shown in fig. 1, on the basis of the first embodiment, the present utility model provides a technical solution: the bottom plate 101 is fixedly provided with a heater base 3, the upper end of the heater base 3 is fixedly provided with an electromagnetic heating controller 301, the side part of the electromagnetic heating controller 301 is provided with a ceramic wiring terminal 302 and an annular insulating support 303, the ceramic wiring terminal 302 is connected with an induction coil 304, the annular end part of the annular insulating support 303 is internally provided with a magnetic conductivity metal sleeve 305, and the magnetic conductivity metal sleeve 305 is positioned inside the induction coil 304.
As shown in fig. 2 and 3, in the present embodiment, the two three-jaw chucks 204 are clamped at two ends of the glass tube 306, the glass tube 306 is arranged inside the magnetic metal sleeve 305 in a penetrating manner, the magnetic metal sleeve 305 is positioned in the middle of the glass tube 306, and the glass tube 306, the magnetic metal sleeve 305 and the induction coil 304 keep concentric positions; through electromagnetic heating controller 301 and set up magnetic conductivity metal cover 305 in induction coil 304, make magnetic conductivity metal cover 305 be heated and heat glass pipe 306, only the magnetic conductivity metal cover 305 position is heated in the induction coil 304, can control the heating region through changing magnetic conductivity metal cover 305 length, the target is controlled below 2mm, the rotational speed of precision gear 113 can realize the regulation of great scope and guarantee heating region is enough little and the intensification is fast, can effectively solve glass pipe 306 and pull out the needle point and appear the fibrosis problem, induction heating has the advantage that the intensification is fast, efficient, heated object is heated evenly simultaneously, very big improvement the preheating time of glass pipe 306, and make the heating of glass pipe 306 in the magnetic conductivity metal cover 305 more even.
Working principle: the worker first rotates the scale knob 203 to adjust the three-jaw chuck 204 on the first clamp 201 and the second clamp 202 to clamp the glass tube 306, the electromagnetic heating controller 301 is operated to set the heating time and the heating temperature of the magnetic conductive metal sleeve 305 in the induction coil 304 in advance, the setting parameters are adjusted and controlled according to the thickness of the drawing microneedle, then the programmable controller 115 is operated to set the stretching step in the process of drawing the microneedle, the rotating speed of the precise gear 113 in each stretching step and the time of each stretching step, after the set heating time and heating temperature and the set time of the stretching step and the rotating speed of the precise gear 113 are completed, the stepping motor 114 and the electromagnetic heating controller 301 are started simultaneously, the stepping motor 114 drives the precise gear 113 to rotate, the precise rack one 109 and the precise rack two 110 are respectively arranged on the two sliders 104, the slide block 104 is movably arranged on the first linear slide rail 102 and the second linear slide rail 103, the precise gear 113 rotates to enable the precise rack 109 and the precise rack 110 which are meshed at two sides to realize up-down reverse synchronous movement along the first linear slide rail 102 and the second linear slide rail 103 to finish the needle drawing process, after the needle drawing of the glass tube 306 is finished, the scale knobs 203 on the first clamp 201 and the second clamp 202 are rotated to take down two needle points after the drawing is finished, the rotating speed of the precise gear 113 can be adjusted in a larger range and the heating area is ensured to be small enough and the heating speed is high in the needle drawing process, the problem of fibrosis of the needle points drawn out of the glass tube 306 can be effectively solved, and then the symmetrical needle drawing in reverse synchronization is realized through the driving of the stepping motor 114, so that the needle point parameters of the drawn glass tube 306 are the same and the needle points of the two needle points are far away from the heating source position, the bending of the needle points after the drawing is finished due to the waste heat of the heating source is avoided, greatly improves the yield of the primary pull needle and the precision of the pull needle point.
Finally, it should be noted that: the foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (9)
1. A single drive bi-directional needle pull device based on inductive heating, comprising: machine case (1), its characterized in that: a bottom plate (101) is fixedly connected inside the chassis (1), a stepping motor (114) is arranged at the lower part of the bottom plate (101), a precise gear (113) is rotatably arranged at the output end of the stepping motor (114), the precise gear (113) is positioned at the upper part of the bottom plate (101), and a precise rack I (109) and a precise rack II (110) are respectively arranged on two sides of the precise gear (113) in a matching manner in the vertical direction;
The upper end of the first precise rack (109) is fixedly connected with a first clamp support plate (111), the lower end of the second precise rack (110) is fixedly connected with a second clamp support plate (112), and the first clamp support plate (111) and the second clamp support plate (112) are in the same vertical direction.
2. A single drive bi-directional pull-pin apparatus based on inductive heating as claimed in claim 1, wherein: install anchor clamps seat one (2) on anchor clamps extension board one (111), anchor clamps seat one (2) internally mounted has anchor clamps one (201), install anchor clamps seat two (206) on the anchor clamps extension board two (112), anchor clamps seat two (206) internally mounted has anchor clamps two (202), movable mounting has scale knob (203) on anchor clamps one (201) and the anchor clamps two (202), compression nut (205) are installed on anchor clamps seat one (2) and anchor clamps seat two (206) upper portion movable mounting.
3. A single drive bi-directional pull-pin apparatus based on inductive heating as claimed in claim 1, wherein: the electromagnetic heating device is characterized in that a heater base (3) is fixedly arranged on the bottom plate (101), an electromagnetic heating controller (301) is fixedly arranged at the upper end of the heater base (3), a ceramic wiring terminal (302) and an annular insulating support (303) are arranged on the side portion of the electromagnetic heating controller (301), an induction coil (304) is connected to the ceramic wiring terminal (302), a magnetic conductivity metal sleeve (305) is arranged in the annular end portion of the annular insulating support (303), and the magnetic conductivity metal sleeve (305) is arranged inside the induction coil (304).
4. A single drive bi-directional pull-pin apparatus based on inductive heating as claimed in claim 1, wherein: the linear sliding rail I (102) and the linear sliding rail II (103) are fixedly mounted on the bottom plate (101), the linear sliding rail I (102) and the linear sliding rail II (103) are symmetrically mounted on two sides of the precision gear (113) in parallel in the vertical direction, the stop blocks (105) are respectively and fixedly mounted at two ends of the linear sliding rail I (102) and the linear sliding rail II (103), and the two sliding blocks (104) are respectively and movably mounted on the linear sliding rail I (102) and the linear sliding rail II (103).
5. The induction heating-based single-drive bi-directional pull pin apparatus of claim 4, wherein: the linear sliding rail is characterized in that a first rack clamp (106) is fixedly installed on two sliding blocks (104) on the first linear sliding rail (102), a second rack clamp (107) is fixedly installed on two sliding blocks (104) on the second linear sliding rail (103), the two sliding blocks (104) are respectively installed at the upper end and the lower end of the first rack clamp (106) and the upper end of the second rack clamp (107), and the first precise rack (109) and the second precise rack (110) are respectively fixedly installed on the first rack clamp (106) and the second rack clamp (107) through screw nuts (108).
6. A single drive bi-directional pull-pin apparatus based on inductive heating as claimed in claim 1, wherein: the bottom plate (101) is fixedly provided with a programmable controller (115), and the output end of the programmable controller (115) is connected with the input end of the stepping motor (114).
7. A single drive bi-directional pull-pin apparatus based on inductive heating as claimed in claim 2, wherein: the three-jaw chuck (204) on the first clamp (201) is vertically downward, the three-jaw chuck (204) on the second clamp (202) is vertically upward, and the two three-jaw chucks (204) are in a centering state in the vertical direction.
8. A single drive bi-directional pull-pin apparatus based on inductive heating as recited in claim 7, wherein: the two-jaw and three-jaw chuck (204) is clamped at two ends of a glass tube (306), the glass tube (306) is arranged inside a magnetic metal sleeve (305) in a penetrating mode, and the magnetic metal sleeve (305) is located in the middle of the glass tube (306).
9. A single drive bi-directional pull-pin apparatus based on inductive heating as recited in claim 8, wherein: the glass tube (306), the magnetic permeability metal sleeve (305) and the induction coil (304) are kept in concentric positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322477148.1U CN221051744U (en) | 2023-09-12 | 2023-09-12 | Single-drive bidirectional needle pulling device based on induction heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322477148.1U CN221051744U (en) | 2023-09-12 | 2023-09-12 | Single-drive bidirectional needle pulling device based on induction heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221051744U true CN221051744U (en) | 2024-05-31 |
Family
ID=91223338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322477148.1U Active CN221051744U (en) | 2023-09-12 | 2023-09-12 | Single-drive bidirectional needle pulling device based on induction heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221051744U (en) |
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2023
- 2023-09-12 CN CN202322477148.1U patent/CN221051744U/en active Active
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