Tungsten alloy wire drawing machine for silk screen

Abstract

The utility model provides a tungsten alloy wire drawing machine for a silk screen, which belongs to the technical field of silk screen printing and comprises an equipment body, the equipment body is provided with a workbench, a support plate is mounted on the workbench, and a plurality of placing grooves for placing wire drawing dies are arranged on the support plate at intervals; when the wire drawing dies are located in the containing grooves, wire drawing holes in the wire drawing dies are located above the supporting plate, limiting protrusions are arranged on the portions, on the two sides of each containing groove, of the supporting plate, and the limiting protrusions are used for making contact with the ends of the wire drawing dies; the tungsten alloy wire drawing machine further comprises a height limiting mechanism, and the height limiting mechanism is transversely arranged on the limiting protrusion in a sliding mode. The height limiting mechanism and the limiting bulge are relatively fixed in the height direction; and the wire drawing die is limited through the height limiting mechanism, the situation that the garbage die flies out can be reduced, and then potential safety hazards can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of screen printing, and particularly relates to a tungsten alloy wire drawing machine for screens. Background Art

[0002] Screen printing is the core process in the manufacturing of solar cells. It's primarily used to form battery electrodes. Screen printing utilizes the principle that the screen's graphic areas are permeable to the slurry, while the non-graphic areas are impermeable. In existing technology, a tungsten alloy wire is drawn to a predetermined diameter using a wire drawing machine. This wire is then woven into a screen to facilitate subsequent solar cell printing.

[0003] During the wire drawing process, the tungsten alloy wire passes through the wire drawing die. Driven by a driving mechanism, the tungsten alloy wire can continuously pass through the wire drawing die until the tungsten metal wire reaches a preset diameter. In the prior art, Chinese invention application No. 201310283460.5 discloses a wire drawing die comprising a base and a plurality of wire drawing dies, wherein a wire drawing hole is provided in the middle of the wire drawing die. The plurality of wire drawing dies are mounted on the base in two rows, and the plurality of wire drawing dies in the first row and the second row are arranged in a staggered manner. The axis of the wire drawing hole of any wire drawing die in the first row passes through the gap between two adjacent wire drawing dies in the second row. The diameters of the wire drawing holes of the plurality of wire drawing dies in the first row and the second row are arranged in descending order.

[0004] When the wire drawing is almost finished, one end of the tungsten alloy wire detaches from the raw material reel and the reel continues to reel, so one end of the tungsten alloy wire becomes a free end. During the wire drawing process, the free end of the tungsten alloy wire will swing, which can easily cause the wire drawing die to fly out of the base, posing a safety hazard. Utility Model Content

[0005] The embodiment of the utility model provides a tungsten alloy wire drawing machine for a wire mesh, aiming to solve the technical problem in the prior art that the wire drawing die is easily ejected from the base.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A tungsten alloy wire drawing machine for wire mesh is provided, comprising an equipment body, the equipment body having a workbench, a support plate mounted on the workbench, a plurality of placement slots for placing a wire drawing die being provided on the support plate at intervals; when the wire drawing die is located in the placement slots, the drawing hole on the wire drawing die is located above the support plate, the support plate having limiting protrusions on both sides of each placement slot, the limiting protrusions being used to contact the end of the wire drawing die; the tungsten alloy wire drawing machine further comprising:

[0008] A height limiting mechanism is arranged to slide laterally on the limiting protrusion; the height limiting mechanism and the limiting protrusion are relatively fixed in the height direction;

[0009] Wherein, when the wire drawing die is located in the placement groove, the height limiting mechanism can slide to the top of the wire drawing die, and the height limiting mechanism contacts the top of the wire drawing die.

[0010] In a possible implementation, the limiting protrusion and the drawing hole on the drawing die are staggered.

[0011] In a possible implementation, there are two limiting protrusions on each side of the placement groove, and an escape space for the metal wire to pass through is formed between the two limiting protrusions.

[0012] In a possible implementation, the height limiting mechanism includes:

[0013] The slide plate is bent at the top and is located above the limiting protrusion; the slide plate is provided with a slider, and the limiting protrusion is provided with a sliding groove that is slidably matched with the slider;

[0014] A positioning structure, one end of which can be connected to the slide plate, and the other end of which can be connected to the limiting protrusion;

[0015] Wherein, when the wire drawing die is located in the placement groove, the slide plate can slide to a position in contact with the top of the wire drawing die; and the two ends of the positioning structure are respectively connected to the slide plate and the limiting protrusion.

[0016] In one possible implementation, there are two limiting protrusions on one side of the placement groove, and an avoidance space for the metal wire to pass through is formed between the two limiting protrusions; the slide plate includes two vertical plates and a horizontal plate connecting the two vertical plates, and both vertical plates are provided with sliders, and the corresponding limiting protrusions are provided with sliding grooves for the sliding of the sliders.

[0017] In a possible implementation, the positioning structure includes a positioning bolt, the limiting protrusion has a threaded hole, and the curved portion of the slide plate has a through hole that can be aligned with the threaded hole;

[0018] When the curved portion of the slide contacts the top of the drawing die, the through hole of the curved portion of the slide is aligned with the threaded hole on the limiting protrusion, and the threaded end of the positioning bolt passes through the curved portion of the slide and engages with the thread of the limiting protrusion.

[0019] In a possible implementation, the limiting protrusion has a first hole, the curved portion of the slide has a second hole, and the second hole can be aligned with the first hole; the positioning structure includes:

[0020] A slide rod is slidably disposed in the second hole; the bottom end of the slide rod can be plugged into and engaged with the first hole;

[0021] An elastic member has one end connected to the slide bar and the other end connected to the slide plate.

[0022] In a possible implementation, a third hole is further provided in the middle of the limiting protrusion, and when the second hole on the slide is aligned with the third hole, the slide is separated from the drawing die.

[0023] In a possible implementation, one end of the support plate is provided with a wire drawing fixture, the wire drawing fixture is provided with a groove for placing the wire drawing die, and the groove is provided with a through hole aligned with the wire drawing hole on the wire drawing die.

[0024] The utility model provides a tungsten alloy wire drawing machine for wire mesh. Compared with the prior art, before the wire drawing die is placed in a support plate, it is necessary to manually pass the metal wire through the wire drawing die, and then place the wire drawing die in a corresponding placement slot. At this time, the top of the height limiting mechanism can be brought into contact with the top of the wire drawing die by sliding the height limiting mechanism, thereby limiting the height of the wire drawing die. When the wire drawing process is nearing the end, one end of the metal wire is a free end, and during the wire drawing process, the free end of the metal wire will swing. At this time, the wire drawing die is limited by the height limiting mechanism, which can reduce the situation where garbage molds fly out, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a support plate portion of a tungsten alloy wire drawing machine for wire mesh provided in an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 A magnified schematic diagram of part A in the middle;

[0027] Figure 3 A schematic diagram of a height limiting mechanism of a tungsten alloy wire drawing machine for wire mesh provided in an embodiment of the present utility model.

[0028] Explanation of the accompanying reference numerals: 1. Support plate; 11. Placement groove; 12. Limiting protrusion; 121. First hole; 122. Third hole; 13. Avoidance space; 14. Drawing fixture; 141. Groove; 2. Drawing die; 3. Height limiting mechanism; 31. Slide plate; 311. Vertical plate; 312. Horizontal plate; 32. Slider; 33. Slide groove; 34. Slide rod; 35. Elastic part. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] Please also refer to Figures 1 to 3 Now, a tungsten alloy wire drawing machine for wire mesh provided by the present invention is described. The tungsten alloy wire drawing machine for wire mesh includes an equipment body, the equipment body has a workbench, a support plate 1 is installed on the workbench, and a plurality of placement slots 11 for placing the drawing die 2 are provided on the support plate 1 at intervals; when the drawing die 2 is located in the placement slots 11, the drawing hole on the drawing die 2 is located above the support plate 1, and the support plate 1 is provided with limiting protrusions 12 on both sides of each placement slot 11, and the limiting protrusions 12 are used to contact the end of the drawing die 2; the tungsten alloy wire drawing machine also includes a height limiting mechanism 3, the height limiting mechanism 3 is laterally slidably set on the limiting protrusions 12; the height limiting mechanism 3 and the limiting protrusion 12 are relatively fixed in the height direction; wherein, when the drawing die 2 is located in the placement slots 11, the height limiting mechanism 3 can slide to the top of the drawing die 2, and the height limiting mechanism 3 contacts the top of the drawing die 2.

[0031] The utility model provides a tungsten alloy wire drawing machine for wire mesh. Compared with the prior art, before the wire drawing die 2 is placed on the support plate 1, it is necessary to manually pass the metal wire through the wire drawing die 2, and then place the wire drawing die 2 into the corresponding placement groove 11. At this time, the top of the height limiting mechanism 3 can be made to contact with the top of the wire drawing die 2 by sliding the height limiting mechanism 3, thereby limiting the height of the wire drawing die 2; when the wire drawing process is about to end, one end of the metal wire is a free end, and during the wire drawing process, the free end of the metal wire will swing; at this time, the wire drawing die 2 is limited by the height limiting mechanism 3, which can reduce the situation where garbage molds fly out, thereby reducing safety hazards.

[0032] Exemplarily, there are two rows of placement slots 11 on the support plate 1, and the two placement slots 11 on the same row share a height limiting mechanism 3, and only one of the two placement slots 11 on the same row can be selected for use, and the other placement slot 11 is left empty; through the above setting, it can be ensured that the height limiting mechanism 3 can play a role in height limiting the drawing die 2.

[0033] It should be noted that the other mechanisms on the tungsten alloy wire drawing machine are all existing technologies and will not be described in detail here.

[0034] In some embodiments, as Figures 1 to 3As shown, the limiting protrusion 12 is staggered with the drawing hole on the drawing die 2. Through the above setting, on the one hand, the limiting protrusion 12 can laterally limit the drawing die 2, and on the other hand, the limiting protrusion 12 will not interfere with the movement of the metal wire, thereby facilitating the metal wire to pass through the drawing die 2.

[0035] In some embodiments, as Figures 1 to 3 As shown, there are two limiting protrusions 12 on each side of the placement groove 11, and an avoidance space 13 for the metal wire to pass through is formed between the two limiting protrusions 12.

[0036] It should be noted that by providing two limiting protrusions 12 on each side of the placement groove 11, the contact area between the limiting protrusions 12 and the wire drawing die 2 can be increased, thereby facilitating the lateral positioning of the wire drawing die 2. By providing an avoidance space 13 between the two limiting protrusions 12, the limiting protrusions 12 can be prevented from interfering with the movement of the metal wire, thereby facilitating the metal wire to pass through the wire drawing die 2.

[0037] In some embodiments, as Figures 1 to 3 As shown, the height limiting mechanism 3 includes a slide plate 31 and a positioning structure; the top of the slide plate 31 is bent and located above the limiting protrusion 12; the slide plate 31 has a slider 32, and the limiting protrusion 12 has a slide groove 33 that slides with the slider 32; one end of the positioning structure can be connected to the slide plate 31, and the other end can be connected to the limiting protrusion 12; wherein, when the drawing die 2 is located in the placement groove 11, the slide plate 31 can slide to a position in contact with the top of the drawing die 2; the two ends of the positioning structure are respectively connected to the slide plate 31 and the limiting protrusion 12.

[0038] It should be noted that the slide plate 31 slides into position with the limiting protrusion 12 through the slider 32, so that the slide plate 31 can slide to the position of the drawing die 2, and then the curved part of the slide plate 31 contacts the top of the drawing die 2; after the slide plate 31 slides into position, the position of the slide plate 31 and the limiting protrusion 12 is fixed by the positioning structure, so that the slide plate 31 can be stabilized in the preset position, thereby facilitating the slide plate 31 to limit the drawing die 2, thereby reducing the situation where the drawing die 2 flies out of the support plate 1.

[0039] In some embodiments, as Figures 1 to 3 As shown, there are two limiting protrusions 12 on one side of the placement groove 11, and an avoidance space 13 for the metal wire to pass through is formed between the two limiting protrusions 12; the slide plate 31 includes two vertical plates 311 and a horizontal plate 312 connecting the two vertical plates 311, and the two vertical plates 311 are each provided with a slider 32, and the corresponding limiting protrusions 12 are each provided with a sliding groove 33 for the slider 32 to slide.

[0040] It should be noted that, by the two sliders 32 slidingly cooperating with the corresponding slide grooves 33 , the slide plate 31 can be limited to prevent the slide plate 31 from sliding longitudinally.

[0041] In some embodiments, as Figures 1 to 3 As shown, the positioning structure includes a positioning bolt, a threaded hole on the limiting protrusion 12, and a curved portion of the slide plate 31 having a through hole that can be aligned with the threaded hole; wherein, when the curved portion of the slide plate 31 contacts the top of the drawing die 2, the through hole of the curved portion of the slide plate 31 is aligned with the threaded hole on the limiting protrusion 12, and the threaded end of the positioning bolt passes through the curved portion of the slide plate 31 and is threadedly engaged with the limiting protrusion 12.

[0042] It should be noted that after the slide plate 31 slides into place, the through hole on the slide plate 31 is aligned with the threaded hole on the limiting protrusion 12. At this time, the slide plate 31 can be fixed in the position after sliding through the threaded cooperation of the positioning bolt and the limiting protrusion 12, thereby facilitating the height limiting of the drawing die 2.

[0043] In some embodiments, as Figures 1 to 3 As shown, the limiting protrusion 12 has a first hole 121, and the curved part of the slide plate 31 has a second hole, which can be aligned with the first hole 121; the positioning structure includes a slide rod 34 and an elastic member 35; the slide rod 34 is slidably arranged in the second hole; the bottom end of the slide rod 34 can be plugged into and matched with the first hole 121; one end of the elastic member 35 is connected to the slide rod 34, and the other end is connected to the slide plate 31.

[0044] It should be noted that the elastic member 35 can be a spring, which is sleeved on the slide rod 34, one end of the spring is fixed on the slide plate 31, and the other end of the spring is fixed on the slide rod 34; the spring provides elastic force to the slide rod 34, so that the slide rod 34 can be inserted into the first hole 121 of the limiting protrusion 12, and then the slide rod 31 is positioned so that the slide rod 31 is fixed in the position after sliding.

[0045] In some embodiments, as Figures 1 to 3 As shown, a third hole 122 is further provided in the middle of the limiting protrusion 12 . When the second hole on the slide plate 31 is aligned with the third hole 122 , the slide plate 31 is separated from the drawing die 2 .

[0046] It should be noted that by setting a third hole 122 on the limiting protrusion 12, when not in use, the slide plate 31 slides to the middle part of the limiting protrusion 12, and the slide rod 34 is plugged into and fitted with the third hole 122, so that the slide plate 31 can be fixed on the limiting protrusion 12, thereby reducing the possibility of the limiting protrusion 12 being separated from the support plate 1.

[0047] In some embodiments, as Figures 1 to 3As shown, one end of the support plate 1 is provided with a drawing fixture 14 , the drawing fixture 14 is provided with a groove 141 for placing the drawing die 2 , and the groove 141 is provided with a through hole aligned with the drawing hole on the drawing die 2 .

[0048] It should be noted that by arranging the wire drawing fixture 14 on the support plate 1, when the metal wire is first passed through the wire drawing die 2, the wire drawing die 2 is placed in the groove 141, and the metal wire is located outside the through hole of the wire drawing fixture 14. At this time, the operator clamps the metal wire with pliers and pulls it outward to a preset length; through the above arrangement, it is convenient for the operator to pass the metal wire through the wire drawing die 2.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tungsten alloy wire drawing machine for wire mesh, comprising a device body, the device body having a workbench, a support plate mounted on the workbench, a plurality of placement slots for placing a wire drawing die being provided at intervals on the support plate; when the wire drawing die is located in the placement slots, the drawing holes on the wire drawing die are located above the support plate, characterized in that: The support plate is provided with limiting protrusions on both sides of each placement groove, and the limiting protrusions are used to contact the end of the wire drawing die; the tungsten alloy wire drawing machine also includes: A height limiting mechanism is arranged to slide laterally on the limiting protrusion; the height limiting mechanism and the limiting protrusion are relatively fixed in the height direction; Wherein, when the wire drawing die is located in the placement groove, the height limiting mechanism can slide to the top of the wire drawing die, and the height limiting mechanism contacts the top of the wire drawing die.

2. A tungsten alloy wire drawing machine for wire mesh according to claim 1, characterized in that: The limiting protrusion is staggered with the drawing hole on the drawing die.

3. A tungsten alloy wire drawing machine for wire mesh according to claim 1, characterized in that: There are two limiting protrusions on each side of the placement groove, and an avoidance space for the metal wire to pass through is formed between the two limiting protrusions.

4. A tungsten alloy wire drawing machine for wire mesh according to claim 1, characterized in that: The height limiting mechanism includes: The slide plate is bent at the top and is located above the limiting protrusion; the slide plate is provided with a slider, and the limiting protrusion is provided with a sliding groove that is slidably matched with the slider; A positioning structure, one end of which can be connected to the slide plate, and the other end of which can be connected to the limiting protrusion; Wherein, when the wire drawing die is located in the placement groove, the slide plate can slide to a position in contact with the top of the wire drawing die; and the two ends of the positioning structure are respectively connected to the slide plate and the limiting protrusion.

5. A tungsten alloy wire drawing machine for wire mesh according to claim 4, characterized in that: There are two limiting protrusions on one side of the placement groove, and an avoidance space for the metal wire to pass through is formed between the two limiting protrusions; the slide plate includes two vertical plates and a horizontal plate connecting the two vertical plates, and sliders are provided on the two vertical plates, and the corresponding limiting protrusions are provided with sliding grooves for the sliding of the sliders.

6. A tungsten alloy wire drawing machine for wire mesh according to claim 4, characterized in that: The positioning structure includes a positioning bolt, the limiting protrusion has a threaded hole, and the curved portion of the slide plate has a through hole that can be aligned with the threaded hole; When the curved portion of the slide contacts the top of the drawing die, the through hole of the curved portion of the slide is aligned with the threaded hole on the limiting protrusion, and the threaded end of the positioning bolt passes through the curved portion of the slide and engages with the thread of the limiting protrusion.

7. A tungsten alloy wire drawing machine for wire mesh according to claim 4, characterized in that: The limiting protrusion has a first hole, the curved portion of the slide has a second hole, and the second hole can be aligned with the first hole; the positioning structure includes: A slide rod is slidably disposed in the second hole; the bottom end of the slide rod can be plugged into and engaged with the first hole; An elastic member has one end connected to the slide bar and the other end connected to the slide plate.

8. A tungsten alloy wire drawing machine for wire mesh according to claim 7, characterized in that: A third hole is also provided in the middle of the limiting protrusion. When the second hole on the slide is aligned with the third hole, the slide is separated from the wire drawing die.

9. The tungsten alloy wire drawing machine for wire mesh according to claim 1, wherein: One end of the support plate is provided with a wire drawing fixture, the wire drawing fixture is provided with a groove for placing a wire drawing die, and the groove is provided with a through hole aligned with the wire drawing hole on the wire drawing die.

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