Shaping die of thread trimming knife rest

Abstract

The utility model relates to the technical field of shaping tools, in particular to a shaping die of a thread trimmer holder, which comprises an upper die holder, a lower die holder and a slider, the lower die holder is used for placing the thread trimmer holder, the upper die holder is slidably connected to the lower die holder, the upper die holder is used for abutting against a transmission part of the thread trimmer holder, and the slider is slidably connected to the lower die holder. The sliding direction of the sliding block is perpendicular to the sliding direction of the upper die base, and one end of the sliding block is used for abutting against a mounting part of the thread trimming tool rest. The trimming knife rest is placed on the lower die base, the upper die base abuts against the transmission part of the trimming knife rest in a sliding mode, the sliding block abuts against the installation part of the trimming knife rest in a sliding mode, shaping of the trimming knife rest is achieved, the precision of equipment shaping is improved, and the production efficiency and the production quality of the trimming knife rest are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shaping tools, in particular to a shaping mold for a thread cutting holder. BACKGROUND

[0002] With the development of sewing machine technology, sewing machines with automatic thread cutting function are favored by sewing industry manufacturers because they reduce the workload and ensure the continuity of the process.

[0003] Currently, the automatic thread cutting device of a sewing machine usually cuts the thread by cooperating a moving cutter with a fixed cutter, wherein the moving cutter is connected to a thread cutting holder, a lower shaft drives the thread cutting holder to rotate through a transmission mechanism, and the thread cutting holder drives the displacement of the moving cutter.

[0004] REFERENCE Figure 1 The thread cutting holder 01 includes a connecting portion 011, a mounting portion 012, and a transmission portion 013. The connecting portion 011 is provided with a through hole 0111 for embedding the lower shaft, the mounting portion 012 is used for mounting the moving cutter, and the transmission portion 013 is used for connecting with the transmission mechanism.

[0005] The thread cutting holder is mainly formed by injection molding, and the connecting portion is relatively weak at the connecting portion with the mounting plate and the transmission portion. When it is taken out, it is easy to bend, which affects the normal use of the thread cutting holder. Currently, the shaping of the thread cutting holder is manually operated, which has low production efficiency, high labor intensity of workers, and high cost of products. CONTENT OF THE INVENTION

[0006] In order to improve the working efficiency of shaping the thread cutting holder, the present application provides a shaping mold for a thread cutting holder.

[0007] The shaping mold for a thread cutting holder provided by the present application adopts the following technical scheme:

[0008] A shaping mold for a thread cutting holder includes an upper mold seat, a lower mold seat, and a sliding block. The lower mold seat is used for placing the thread cutting holder. The upper mold seat is slidingly connected to the lower mold seat and is used for abutting against the transmission portion of the thread cutting holder. The sliding block is slidingly connected to the lower mold seat, and the sliding direction of the sliding block is perpendicular to the sliding direction of the upper mold seat. One end of the sliding block is used for abutting against the mounting portion of the thread cutting holder.

[0009] By adopting the above technical scheme, the thread cutting holder is placed on the lower mold seat, the upper mold seat is slidingly abutted against the transmission portion of the thread cutting holder, and the sliding block is slidingly abutted against the mounting portion of the thread cutting holder, thereby realizing the shaping of the thread cutting holder, improving the accuracy of equipment shaping, and improving the production efficiency and production quality of the thread cutting holder.

[0010] Preferably, the lower die seat is connected with a positioning block on one side close to the upper die seat, the positioning block is used for embedding into the through hole of the shearing line holder connecting part, one side of the lower die seat close to the positioning block is connected with a limiting block, one positioning block corresponds to two limiting blocks, and the two limiting blocks are in close contact with the side wall of the shearing line holder transmission part.

[0011] By adopting the technical scheme, the positioning block and the limiting block are arranged to position the shearing line holder, the shearing line holder is convenient to place, the possibility of the shearing line holder moving in the shaping process is reduced, the stability and accuracy of the equipment shaping are improved, and the production efficiency and production quality of the shearing line holder are improved.

[0012] Preferably, the positioning block is provided with a plurality of positioning blocks, the plurality of positioning blocks are divided into two groups, the two groups of positioning blocks are symmetrically distributed along the sliding direction of the sliding block, and the plurality of positioning blocks in the same group are distributed at intervals along the direction perpendicular to the sliding direction of the sliding block.

[0013] By adopting the technical scheme, a plurality of shearing line holders can be placed at one time, and the plurality of shearing line holders can be shaped at the same time, so that the shaping efficiency of the equipment is improved.

[0014] Preferably, the upper mounting seat, the lower mounting seat, the guide column and the guide sleeve are further included, the lower die seat is connected to the lower mounting seat, the upper mounting seat is slidingly connected to the lower mounting seat, the sliding direction of the upper mounting seat is parallel to the sliding direction of the upper die seat, one end of the guide column is connected to the lower mounting seat, the guide column is provided with a plurality of guide columns, the plurality of guide columns are distributed at intervals in the circumferential direction of the lower mounting seat, the guide sleeve is provided with the same number of guide sleeves as the guide columns and corresponds to the guide columns one by one, the guide sleeve is connected to the upper mounting seat, and the guide sleeve is coaxially and slidingly sleeved on the outer periphery of the guide column.

[0015] By adopting the technical scheme, the lower die seat is connected to the lower mounting seat, the upper die seat is connected to the upper mounting seat, the upper mounting seat is slidingly connected to the guide column through the guide sleeve, the guide sleeve and the guide column guide the sliding of the upper mounting seat, the stability of the sliding of the upper mounting seat is improved, and the accuracy of the equipment shaping is improved.

[0016] Preferably, the first reset member is further included, the upper die seat is slidingly connected to the upper mounting seat, the sliding direction of the upper die seat is parallel to the sliding direction of the upper mounting seat, the first reset member is connected between the upper mounting seat and the upper die seat, and the first reset member makes the upper die seat have a tendency to move away from the upper mounting seat.

[0017] By adopting the technical scheme, when the upper mounting seat moves downward, the upper die seat abuts against the shearing line holder, the upper mounting seat continuously moves downward, the transmission part of the shearing line holder is extruded by the upper die seat pushed by the first reset member, the shaping of the shearing line holder is realized, the upper mounting seat and the upper die seat have a buffering effect, the possibility of the upper mounting seat and the upper die seat being damaged is reduced, and the service life of the equipment is improved.

[0018] Preferably, the upper die holder is provided with positioning grooves on the side close to the lower die holder, the positioning grooves are used for embedding the connecting part of the thread trimming cutter holder, the number of the positioning grooves is the same as that of the positioning blocks and one-to-one correspondence exists.

[0019] By using the above technical scheme, the connecting part of the thread trimming cutter holder is embedded in the positioning groove, the possibility of the thread trimming cutter holder moving when the upper die holder extrudes the transmission part of the thread trimming cutter holder is reduced, the reliability of the equipment shaping is improved, and the production quality of the equipment is improved.

[0020] Preferably, the upper mounting seat is connected with a connecting column on the side close to the lower mounting seat, and the upper die holder is provided with a guide hole, and the connecting column is coaxially and slidingly embedded in the guide hole.

[0021] By using the above technical scheme, the connecting column is provided and slidingly embedded in the guide hole, which plays a guiding role in the sliding of the upper die holder, reduces the possibility of the upper die holder deviating under stress, and improves the reliability and shaping accuracy of the equipment.

[0022] Preferably, the device further comprises a push block, the number of the push block is the same as that of the positioning block and one-to-one correspondence exists, one end of the push block is connected to the upper mounting seat, the other end of the push block is provided with a first chamfer, the first chamfer is located on the side of the push block close to the lower die holder, and the first chamfer is used for abutting against one end of the sliding block away from the lower die holder.

[0023] By using the above technical scheme, the push block is provided and connected to the upper mounting seat, the upper mounting seat slides to drive the push block to slide, the first chamfer abuts against the sliding block to push the sliding block to slide and abut against the mounting part of the thread trimming cutter holder, the shaping of the mounting part of the thread trimming cutter holder is realized, and the automation level of the equipment is improved.

[0024] Preferably, the device further comprises a second reset member, the second reset member is connected between the sliding block and the lower mounting seat, and the second reset member makes the sliding block have a tendency to move away from the lower die holder.

[0025] By using the above technical scheme, after the upper mounting seat moves away from the lower mounting seat, the second reset member makes the sliding block have a tendency to move away from the lower die holder, which facilitates taking out the thread trimming cutter holder after shaping and putting in the thread trimming cutter holder before shaping, reduces the time for manual adjustment, and improves the shaping efficiency of the equipment.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. The thread trimming cutter holder is placed on the lower die holder, the upper die holder slides to abut against the transmission part of the thread trimming cutter holder, the sliding block slides to abut against the mounting part of the thread trimming cutter holder, the shaping of the thread trimming cutter holder is realized, the accuracy of the equipment shaping is improved, and the production efficiency and production quality of the thread trimming cutter holder are improved.

[0028] 2. When the upper mounting seat moves downward, the upper die seat abuts against the wire cutting tool holder, and the upper mounting seat continuously moves downward, the first reset member pushes the upper die seat to extrude the transmission part of the wire cutting tool holder, the shaping of the wire cutting tool holder is realized, the upper die seat and the upper mounting seat are buffered, the possibility of damage of the upper die seat and the upper mounting seat is reduced, and the service life of the equipment is improved;

[0029] 3. The push block is arranged, the push block is connected to the upper mounting seat, the upper mounting seat slides to drive the push block to slide, the first chamfer abuts against the sliding block, the sliding block is pushed to slide to abut against the mounting part of the wire cutting tool holder, the shaping of the mounting part of the wire cutting tool holder is realized, after the upper mounting seat moves away from the lower mounting seat, the second reset member makes the sliding block move away from the lower die seat, the wire cutting tool holder that is shaped is convenient to take out and the wire cutting tool holder that is not shaped is convenient to put in, the time of manual adjustment is reduced, the automation level of the equipment is improved, and the shaping efficiency of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic view of the wire cutting tool holder.

[0031] Figure 2 is a structural schematic view of the shaping die of the wire cutting tool holder.

[0032] Figure 3 is a sectional view of the shaping die of the wire cutting tool holder, mainly showing the sliding block, the second connecting bolt, the second reset member and the push block.

[0033] Figure 4 is a sectional view of the shaping die of the wire cutting tool holder, mainly showing the second fixed hole and the second connecting hole.

[0034] Figure 5 is a partial sectional view of the shaping die of the wire cutting tool holder, mainly showing the third fixed hole, the third connecting hole and the fourth connecting hole.

[0035] Figure 6 is a sectional view of the upper die assembly, mainly showing the fifth fixed hole and the ninth connecting hole.

[0036] Figure 7 is Figure 3 is an enlarged view of A in FIG. 8.

[0037] Figure 8 is a sectional view of the upper die assembly, mainly showing the connecting column.

[0038] EXPLANATION OF REFERENCE NUMERALS:

[0039] 1, lower die assembly; 11, lower die seat; 111, positioning block; 112, protruding block; 113, limiting block; 114, first fixing hole; 12, sliding block; 121, guide block; 122, second chamfer; 13, lower mounting seat; 131, second connecting hole; 132, second embedding groove; 133, third fixing hole; 134, fifth connecting hole; 14, guide column; 15, second reset member; 16, lower mounting plate; 161, first connecting hole; 162, first embedding groove; 163, second fixing hole; 164, fourth connecting hole; 165, second communication groove; 17, limiting seat; 171, sliding groove; 172, third connecting hole; 173, third embedding groove; 174, guide groove; 175, first communication hole; 176, first communication groove; 18, second connecting bolt;

[0040] 2, upper die assembly; 21, upper die seat; 211, positioning groove; 212, guide hole; 213, sixth fixing hole; 22, upper mounting seat; 221, sixth connecting hole; 222, seventh connecting hole; 223, fourth embedding groove; 224, twelfth connecting hole; 225, seventh embedding groove; 23, first reset member; 24, guide sleeve; 25, connecting column; 251, limiting ring; 26, push block; 261, first chamfer; 262, avoiding groove; 27, upper mounting plate; 271, fourth fixing hole; 272, mounting groove; 273, eighth connecting hole; 274, fifth embedding groove; 275, ninth connecting hole; 276, sixth embedding groove; 277, eleventh connecting hole; 28, fixed plate; 281, fifth fixing hole; 282, tenth connecting hole; 283, thirteenth connecting hole; 284, eighth embedding groove; 29, first connecting bolt;

[0041] 01, line cutter holder; 011, connecting part; 0111, through hole; 012, mounting part; 013, transmission part. DETAILED DESCRIPTION

[0042] The application will be further described in detail below with reference to the accompanying drawings.

[0043] Reference Figure 2The embodiment of the application discloses a shaping die of a thread trimming knife holder, which comprises a lower die assembly 1, the lower die assembly 1 comprises a lower mounting plate 16 and a lower die seat 11, the lower die seat 11 is fixedly connected to one side of the lower mounting plate 16 along the sliding direction of the lower mounting plate 16, the lower die seat 11 is fixedly connected with a plurality of protrusions 112 on the two side surfaces along the length direction of the lower mounting plate 16, and the outer wall of the protrusion 112 is attached to the side surface of the thread trimming knife holder mounting part close to the connecting part. The plurality of protrusions 112 are divided into two groups, the two groups of protrusions 112 are symmetrically distributed along the length direction of the lower mounting plate 16, and the plurality of protrusions 112 in the same group are distributed at intervals along the width direction of the lower mounting plate 16. In the embodiment, the plurality of protrusions 112 are four. The side surface of the lower die seat 11 away from the lower mounting plate 16 is fixedly connected with a plurality of positioning blocks 111, the positioning block 111 is used for being coaxially embedded in the through hole of the connecting part of the thread trimming knife holder, the number of the positioning blocks 111 is the same as that of the protrusions 112 and one-to-one correspondence. The side surface of the lower die seat 11 away from the lower mounting plate 16 is fixedly connected with a plurality of limiting blocks 113, the plurality of limiting blocks 113 are divided into four groups, the four groups of limiting blocks 113 correspond to the four positioning blocks 111 respectively, and the two limiting blocks 113 in the same group are distributed on the two sides of the thread trimming knife holder transmission part along the width direction of the lower mounting plate 16, and the side surface of any limiting block 113 in the same group close to the other limiting block 113 in the same group is attached to the side wall of the thread trimming knife holder transmission part.

[0044] With reference to Figure 3 The side surface of the lower die seat 11 close to the lower mounting plate 16 is provided with a plurality of first fixing holes 114, the first fixing hole 114 penetrates the lower die seat 11 and the positioning block 111, the number of the first fixing holes 114 is the same as that of the positioning blocks 111 and one-to-one correspondence, and the axis of the first fixing hole 114 coincides with that of the positioning block 111. The lower mounting plate 16 is provided with a plurality of first connecting holes 161, the number of the first connecting holes 161 is the same as that of the first fixing holes 114 and one-to-one correspondence, the first connecting hole 161 is used for the fixed bolt to pass through and be threadedly connected with the first fixing hole 114, and the hole wall of the first connecting hole 161 away from the lower die seat 11 is provided with a first embedding groove 162 for embedding the head of the fixed bolt.

[0045] With reference to Figure 3 and Figure 4The lower mold assembly 1 further comprises a lower mounting base 13 fixedly connected to the side surface of the lower mounting plate 16 away from the lower mold base 11, and the two ends of the lower mounting plate 16 along the length direction of the lower mounting plate 16 are flush with the side walls of the lower mounting base 13. The lower mounting plate 16 is provided with second fixing holes 163 located on the outer periphery of the lower mold base 11, and a plurality of second fixing holes 163 are distributed at intervals in the circumferential direction of the lower mold base 11. In this embodiment, four second fixing holes 163 are provided, which are distributed at the four corners of the lower mold base 11. The lower mounting base 13 is provided with second connecting holes 131 for the fixed bolts to pass through and be screwed with the second fixing holes 163. The second connecting holes 131 are provided with second embedding grooves 132 at the hole walls away from the one end of the lower mounting plate 16 for the heads of the fixed bolts to be embedded.

[0046] With reference to Figure 5 The lower mold assembly 1 further comprises a limiting seat 17 fixedly connected to the side surface of the lower mounting plate 16 close to the lower mold base 11. The limiting seat 17 is provided with two limiting seats 17 symmetrically distributed along the length direction of the lower mounting plate 16, and the two limiting seats 17 are distributed on the two sides of the lower mold base 11. The limiting seat 17 is provided with a sliding groove 171 on the side surface close to the lower mold base 11, which penetrates the limiting seat 17 along the thickness direction of the lower mounting plate 16, and the number of the sliding grooves 171 is the same as and corresponds to the number of the protrusions 112. The limiting seat 17 is provided with third connecting holes 172 on the side surface away from the lower mounting plate 16, and a plurality of third connecting holes 172 are divided into three groups, which are uniformly distributed along the width direction of the lower mounting plate 16, and one sliding groove 171 is arranged between the two adjacent groups of third connecting holes 172, and the plurality of third connecting holes 172 in the same group are distributed at intervals along the length direction of the lower mounting plate 16. In this embodiment, one limiting seat 17 is provided with six third connecting holes 172. The lower mounting plate 16 is provided with fourth connecting holes 164, and the lower mounting base 13 is provided with third fixing holes 133, and the number of the third connecting holes 172 is the same as and corresponds to the number of the fourth connecting holes 164 and the third fixing holes 133, and the third connecting holes 172 and the fourth connecting holes 164 are used for the fixed bolts to pass through and be screwed with the third fixing holes 133. The third connecting holes 172 are provided with third embedding grooves 173 at the hole walls away from the one end of the lower mounting plate 16 for the heads of the fixed bolts to be embedded.

[0047] Figure 3 and Figure 4The lower mold assembly 1 further comprises sliders 12, second return members 15 and second connecting bolts 18. The number of the sliders 12, the second return members 15 and the second connecting bolts 18 is the same as that of the sliding grooves 171 and they are one-to-one corresponding. The sliders 12 are slidingly embedded in the sliding grooves 171. The sliding direction of the sliders 12 is parallel to the length direction of the lower mounting plate 16. The side wall of the slider 12 is in close contact with the groove wall of the sliding groove 171. One end of the slider 12 is used to abut against the side surface of the shearing blade holder mounting plate away from the protrusion 112. The sliding groove 171 is provided with guide grooves 174 at the two side groove walls along the width direction of the lower mounting plate 16. The side wall of the slider 12 is fixedly connected with a guide block 121. The guide block 121 is slidingly embedded in the guide groove 174. The side wall of the guide block 121 is in close contact with the groove wall of the guide groove 174. The side surface of the limiting seat 17 away from the lower mold seat 11 is provided with first communication holes 175. The first communication holes 175 are in communication with the sliding grooves 171. The number of the first communication holes 175 is the same as that of the sliding grooves 171 and they are one-to-one corresponding. The second connecting bolts 18 are in threaded connection with the sliders 12 after penetrating through the first communication holes 175. The outer wall of the second connecting bolts 18 is in close contact with the hole wall of the first communication holes 175. The second return members 15 are connected between the second connecting bolts 18 and the limiting seat 17. The second return members 15 make the sliders 12 have a tendency to move away from the lower mold seat 11. In the embodiment, the second return members 15 are springs. The second return members 15 are sleeved on the outer periphery of the rod part of the second connecting bolts 18. One end of the second return members 15 is connected with the side surface of the limiting seat 17 away from the lower mold seat 11. The other end of the second return members 15 is connected with the head part of the second connecting bolts 18.

[0048] With reference to Figure 2The shaping die of the thread trimming holder further comprises an upper die assembly 2. The lower die assembly 1 further comprises guide posts 14. The lower mounting base 13 is provided with fifth connecting holes 134. The fifth connecting holes 134 penetrate the lower mounting base 13 along the thickness direction of the lower mounting plate 16. The fifth connecting holes 134 are located on one side of the lower mounting base 13 along the width direction of the lower mounting plate 16. The fifth connecting holes 134 are two in number and symmetrically distributed along the length direction of the lower mounting plate 16. The number of the guide posts 14 is the same as that of the fifth connecting holes 134 and they are one-to-one corresponding. One end of the guide post 14 is coaxially embedded in the fifth connecting hole 134. In the embodiment, the guide post 14 is in interference fit with the fifth connecting hole 134. The upper die assembly 2 comprises an upper mounting base 22 and guide sleeves 24. The upper mounting base 22 is slidingly connected to one side of the lower mounting base 13 close to the lower mounting plate 16. The sliding direction of the upper mounting base 22 is parallel to the axis direction of the guide post 14. The upper mounting base 22 is provided with sixth connecting holes 221. The number of the sixth connecting holes 221 and the guide sleeves 24 is the same as that of the guide posts 14 and they are one-to-one corresponding. One end of the guide sleeve 24 is coaxially embedded in the sixth connecting hole 221. In the embodiment, the guide sleeve 24 is in interference fit with the sixth connecting hole 221. The guide sleeve 24 is coaxially and slidingly sleeved on the outer periphery of the guide post 14. The inner wall of the guide sleeve 24 is in close contact with the outer wall of the guide post 14.

[0049] With reference to Figure 2 and Figure 4 The upper die assembly 2 further comprises an upper mounting plate 27. The upper mounting plate 27 is fixedly connected to one side surface of the upper mounting base 22 close to the lower mounting base 13. Both ends of the upper mounting plate 27 along the length direction of the upper mounting plate 27 are flush with the side wall of the upper mounting base 22. The upper mounting plate 27 is provided with fourth fixing holes 271. The number of the fourth fixing holes 271 is the same as that of the second fixing holes 163 and they are one-to-one corresponding. The upper mounting base 22 is provided with seventh connecting holes 222. The seventh connecting holes 222 are used for the fixed bolts to pass through and be threadedly connected with the fourth fixing holes 271. The hole wall of the fourth connecting hole 164 away from one end of the upper mounting plate 27 is provided with a fourth embedding groove 223. The fourth embedding groove 223 is used for the head of the fixed bolt to be embedded.

[0050] With reference to Figure 3The upper mold assembly 2 also includes push blocks 26. The upper mounting plate 27 has mounting grooves 272 on its surface away from the upper mounting base 22. The number of mounting grooves 272 and push blocks 26 corresponds to the number of sliding grooves 171. One end of the push block 26 is embedded in the mounting groove 272. The limiting seat 17 has first connecting grooves 176, the number of which corresponds to the number of sliding grooves 171. The first connecting grooves 176 communicate with the sliding grooves 171 and penetrate the limiting seat 17 along the thickness direction of the lower mounting plate 16. The lower mounting plate 16 has second connecting grooves 165, the number of which corresponds to the number of first connecting grooves 176. The first connecting grooves 176 and second connecting grooves 165 are used for embedding the end of the push block 26 away from the upper mounting plate 27. The end of the push block 26 away from the upper mounting plate 27 has a clearance groove 262 for embedding the second connecting bolt 18. The push block 26 has a first chamfer 261 at the end away from the upper mounting plate 27, located on the side of the push block 26 near the lower mold base 11. The slider 12 has a second chamfer 122 at the end away from the lower mold base 11, located on the side of the slider 12 away from the lower mounting base 13, and the second chamfer 122 is used to abut against the first chamfer 261. The surface of the upper mounting plate 27 near the upper mounting base 22 has an eighth connecting hole 273, which communicates with the mounting groove 272 and is used for the fixing bolt to pass through and be threaded to the push block 26. The wall of the hole at the end of the eighth connecting hole 273 away from the mounting groove 272 has a fifth groove 274, which is used for the head of the fixing bolt to be inserted.

[0051] Reference Figure 6 The upper mold assembly 2 also includes a fixing plate 28, which is fixedly connected to the surface of the upper mounting plate 27 away from the upper mounting base 22. The fixing plate 28 has two fifth fixing holes 281, which are symmetrically distributed along the length of the upper mounting plate 27. The upper mounting plate 27 has nine connecting holes 275, the number of which is the same as the number of fifth fixing holes 281 and they correspond one-to-one. The nine connecting holes 275 are used for the fixing bolts to pass through and be threaded into the fifth fixing holes 281. A sixth groove 276 is provided on the wall of the ninth connecting hole 275 away from the fixing plate 28. The sixth groove 276 is used for the head of the fixing bolt to be inserted.

[0052] Reference Figure 3 and Figure 7The upper die assembly 2 further comprises an upper die seat 21, a first connecting bolt 29 and a first reset member 23. The upper die seat 21 is slidingly connected to the side of the fixed plate 28 away from the upper mounting plate 27. The sliding direction of the upper die seat 21 is parallel to the sliding direction of the upper mounting seat 22. The end surface of the upper die seat 21 away from the fixed plate 28 is used to abut the transmission part of the thread trimming cutter holder. The side of the upper die seat 21 away from the fixed plate 28 is provided with positioning grooves 211. The number of the positioning grooves 211 is the same as that of the positioning blocks 111 and they are one-to-one corresponding. The positioning grooves 211 are used for the connecting part of the thread trimming cutter holder to be embedded. The groove bottom of the positioning groove 211 is provided with a sixth fixing hole 213. The fixed plate 28 is provided with a tenth connecting hole 282. The upper mounting plate 27 is provided with an eleventh connecting hole 277. The upper mounting seat 22 is provided with a twelfth connecting hole 224. The number of the tenth connecting hole 282, the eleventh connecting hole 277, the twelfth connecting hole 224, the first connecting bolt 29 and the first reset member 23 is the same as that of the sixth fixing hole 213 and they are one-to-one corresponding. The rod part of the first connecting bolt 29 is sequentially threaded through the twelfth connecting hole 224, the eleventh connecting hole 277 and the tenth connecting hole 282 and is threadedly connected with the sixth fixing hole 213. The outer wall of the rod part of the first connecting bolt 29 is attached to the hole wall of the twelfth connecting hole 224. The hole wall of the twelfth connecting hole 224 away from the end of the upper mounting plate 27 is provided with a seventh embedding groove 225. The seventh embedding groove 225 is used for the head part of the first connecting bolt 29 to be slidingly embedded. The first reset member 23 is connected between the upper mounting seat 22 and the upper die seat 21. The first reset member 23 makes the upper die seat 21 have a tendency to move away from the upper mounting seat 22. In this embodiment, the first reset member 23 is a spring. The first reset member 23 is embedded in the tenth connecting hole 282 and the eleventh connecting hole 277. The first reset member 23 is sleeved on the outer periphery of the rod part of the first connecting bolt 29. One end of the first reset member 23 is connected to the side surface of the upper mounting seat 22 close to the upper mounting plate 27. The other end of the first reset member 23 is connected to the side surface of the upper die seat 21 close to the fixed plate 28.

[0053] Referring to Figure 8The upper die assembly 2 further comprises a connecting column 25, and the fixed plate 28 is provided with a thirteenth connecting hole 283, and the thirteenth connecting hole 283 is provided with two, and the two thirteenth connecting holes 283 are symmetrically distributed along the width direction of the upper mounting plate 27. The upper die seat 21 is provided with a guide hole 212, and the number of the guide hole 212 and the connecting column 25 is the same as the number of the thirteenth connecting hole 283 and one-to-one correspondence, one end of the connecting column 25 is embedded in the thirteenth connecting hole 283, the outer wall of the connecting column 25 is fitted with the hole wall of the thirteenth connecting hole 283, the hole wall away from the one end of the upper die seat 21 of the thirteenth connecting hole 283 is provided with an eighth embedding groove 284, and the outer periphery of the end of the connecting column 25 close to the upper mounting plate 27 is fixedly connected with a limiting ring 251, the limiting ring 251 is embedded in the eighth embedding groove 284, the side surface of the limiting ring 251 close to the upper die seat 21 is fitted with the groove bottom of the eighth embedding groove 284, the side surface of the limiting ring 251 away from the upper die seat 21 is fitted with the side surface of the upper mounting plate 27 close to the fixed plate 28, and the other end of the connecting column 25 is coaxially and slidingly embedded in the guide hole 212, and the outer wall of the connecting column 25 is fitted with the hole wall of the guide hole 212.

[0054] The implementation principle of the shaping die of the wire cutting tool holder according to the embodiment of the application is as follows: the wire cutting tool holder to be shaped is placed on the lower die seat 11, so that the positioning block 111 is embedded into the through hole of the connecting part of the wire cutting tool holder, the guide column 14 is slidingly embedded into the guide sleeve 24, the upper mounting seat 22 is slidingly close to the lower mounting seat 13, the connecting part of the wire cutting tool holder is embedded into the positioning groove 211, the first chamfer 261 abuts against the second chamfer 122, the upper mounting seat 22 continues to move downward, driving the upper mounting plate 27 to move downward, driving the push block 26 to move downward, pushing the sliding block 12 to slidingly abut against the mounting part of the wire cutting tool holder against the elastic force of the second return member 15, the upper mounting seat 22 slidingly approaches the upper die seat 21 against the elastic force of the first return member 23, the fixed plate 28 abuts against the upper die seat 21, driving the upper die seat 21 to slidingly approach the lower die seat 11, and the upper die seat 21 abuts against the transmission part of the wire cutting tool holder, so that the wire cutting tool holder is shaped.

[0055] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A sizing die for a thread trimming holder, characterized by: The utility model provides a cutting line holder positioning device, including upper die holder (21), lower die holder (11) and slider (12), lower die holder (11) is used for the cutting line holder to place, upper die holder (21) is slidably connected in lower die holder (11), upper die holder (21) is used for abutting cutting line holder transmission part, slider (12) is slidably connected in lower die holder (11), the sliding direction of slider (12) is perpendicular to the sliding direction of upper die holder (21), one end of slider (12) is used for abutting the mounting portion of cutting line holder.

2. A trim die for a thread trimming holder according to claim 1, characterized in that: Lower die holder (11) is connected with positioning block (111) on one side close to upper die holder (21), positioning block (111) is used for embedding in the through hole of cutting line holder connecting portion, lower die holder (11) is connected with limit block (113) on one side close to positioning block (111), one positioning block (111) corresponds two limit blocks (113), and two limit blocks (113) are attached with the side wall of cutting line holder transmission part.

3. A trim die for a thread trimming holder according to claim 2, characterized in that: Positioning block (111) is equipped with several, several positioning blocks (111) are divided into two groups, and two groups of positioning blocks (111) are symmetrically distributed along the sliding direction of slider (12), and several positioning blocks (111) in the same group are spaced apart along the direction perpendicular to the sliding direction of slider (12).

4. A trim die for a thread trimming holder according to claim 3, characterized in that: It also includes upper mounting seat (22), lower mounting seat (13), guide column (14) and guide sleeve (24), lower die holder (11) is connected to lower mounting seat (13), upper mounting seat (22) is slidably connected to lower mounting seat (13), the sliding direction of upper mounting seat (22) is parallel to the sliding direction of upper die holder (21), one end of guide column (14) is connected to lower mounting seat (13), guide column (14) is equipped with several, several guide columns (14) are spaced apart along the circumference of lower mounting seat (13), the number of guide sleeve (24) is same with the number of guide column (14) and one-to-one correspondence, guide sleeve (24) is connected to upper mounting seat (22), guide sleeve (24) is coaxially slidably sleeved on the outer circumference of guide column (14).

5. A trim die for a thread trimming holder according to claim 4, characterized in that: It also includes first reset member (23), upper die holder (21) is slidably connected to upper mounting seat (22), the sliding direction of upper die holder (21) is parallel to the sliding direction of upper mounting seat (22), first reset member (23) is connected between upper mounting seat (22) and upper die holder (21), and first reset member (23) makes upper die holder (21) have the tendency of moving away from upper mounting seat (22).

6. A trim die for a thread trimming holder according to claim 5, characterized in that: Upper die holder (21) is provided with positioning groove (211) on one side close to lower die holder (11), positioning groove (211) is used for embedding the connecting portion of cutting line holder, and the number of positioning groove (211) is same with the number of positioning block (111) and one-to-one correspondence.

7. A trim die for a thread trimming holder according to claim 5, wherein: Upper mounting seat (22) is connected with connecting column (25) on one side close to lower mounting seat (13), upper die holder (21) is provided with guide hole (212), and connecting column (25) is coaxially slidably embedded in guide hole (212).

8. The trim die for a thread trimming collet as defined in claim 4 wherein: It also includes a push block (26); the number of the sliding block (12) and the push block (26) is the same as that of the positioning block (111) and one-to-one correspondence; one end of the push block (26) is connected to the upper mounting seat (22); the other end of the push block (26) is provided with a first chamfer (261); the first chamfer (261) is located on the side of the push block (26) close to the lower die seat (11); the first chamfer (261) is used for abutting the end of the sliding block (12) away from the lower die seat (11).

9. A trim die for a thread trimming holder according to claim 8, characterized in that: It also includes a second reset member (15); the second reset member (15) is connected between the sliding block (12) and the lower mounting seat (13); the second reset member (15) makes the sliding block (12) have a tendency to move away from the lower die seat (11).

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