CN209493591U - A kind of leather punched hole machine punch structure - Google Patents
A kind of leather punched hole machine punch structure Download PDFInfo
- Publication number
- CN209493591U CN209493591U CN201821836335.7U CN201821836335U CN209493591U CN 209493591 U CN209493591 U CN 209493591U CN 201821836335 U CN201821836335 U CN 201821836335U CN 209493591 U CN209493591 U CN 209493591U
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- CN
- China
- Prior art keywords
- punching pin
- pin set
- jumper bar
- tapered
- punched hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
A kind of leather punched hole machine punch structure belongs to leather punched hole machine technical field.The utility model solve existing formed punch punching pin set and punching pin connection structure it is complicated, it has not been convenient to the replacement of punching pin, the problem of fixation between punching pin set and jumper bar is not firm, and punching pin set is easy to happen rotation.A kind of leather punched hole machine punch structure of the utility model, including jumper bar in hollow structure, it is plugged on the punching pin set of jumper bar lower end and is connected to the upper punching pin of punching pin set, the inner sidewall of jumper bar lower end includes tapered surface, the cyclic convex edge being arranged on tapered surface one and the step surface on the upside of tapered surface, and the upper end of punching pin set has the tapered portion to match with tapered surface.The punching pin set of the utility model and the special connecting structure of jumper bar move up and down punching pin set can not only relative to jumper bar, but also can not rotate relative to jumper bar；And when needing replacing punching pin, lock sleeve is unscrewed so that lock sleeve is separated with punching pin set, punching pin can be extracted from punching pin set, punching pin replaces fast and easy.
Description
Technical field
The utility model relates to a kind of leather punched hole machine punch structures, belong to leather punched hole machine technical field.
Background technique
Leather punched hole machine is suitable for leather, cattle and sheep skin, rtificial leather, plastics, PU, EVA, PVC, various dry goods, stationery, skin
The punching processing of ornaments, vamp, spike, curtain, automobile skin chair etc., is widely used in automobile parts (Ventilating cushion), luggage hand
The industries such as bag, stationery, shoes, gas permeable material, advertisement paper product.
The punch structure of conventional leather perforating press has generally comprised jumper bar, punching pin set and punching pin, punching pin set and has been detachably connected
On jumper bar, punching pin is detachably connected on punching pin and puts on, but traditional punching pin set and punching pin connection structure is complicated, it has not been convenient to rush
The replacement of son, the fixation between punching pin set and jumper bar is not firm, and punching pin set is easy to happen rotation.Therefore it provides a kind of novel
Leather punched hole machine with punch structure be very necessary.
Utility model content
The utility model covers and punching pin connection structure complexity to solve the punching pin of existing formed punch, it has not been convenient to which punching pin is more
It changes, the fixation between punching pin set and jumper bar is not firm, and the problem of punching pin set is easy to happen rotation proposes a kind of novel skin
Remove from office perforating press punch structure, the structure more convenient punching pin while improving the fixed effect between punching pin set and jumper bar
Replacement.
The technical solution of the utility model includes:
A kind of leather punched hole machine punch structure, including jumper bar, punching pin set and punching pin, jumper bar are hollow structure, punching pin set
It is plugged on the lower end of jumper bar, punching pin is connected to punching pin and puts on；
The inner sidewall of the jumper bar lower end is tapered surface and step surface, is provided with cyclic convex edge one, step on tapered surface
Positioning protrusion is evenly arranged on face along the circumferential direction, the quantity of positioning protrusion is 2 or more；
The upper end of the punching pin set is the tapered portion to match with tapered surface, and tapered portion is hollow structure, tapered portion
There is the annular groove mutually embedding with cyclic convex edge one, upper surface and the step surface of tapered portion are mutually matched, tapered portion on lateral wall
Upper surface is circumferentially arranged with mutual corresponding locating slot, the inner peripheral surface of punching pin set have cyclic convex edge, punching one by one with positioning protrusion
The lower end of sub-set is annular shape, has helicitic texture on the circular lateral wall of punching pin set；
The punching pin includes the first cylindrical portion and interconnecting piece, and connecting portion is in the upper end of the first cylindrical portion, and grafting
On cyclic convex edge two, there is limit convex edge, the upper surface on limit convex edge is resisted against punching pin set on the outer peripheral surface of the first cylindrical portion
Lower end surface on.
Preferred: the cross section of the interconnecting piece is D-shape configuration, and the cross section of the medial surface of cyclic convex edge two is and connects
The D-shape configuration that socket part matches.
It is preferred: to further include can have spiral shell along the first cylindrical portion lock sleeve in axial sliding, the inner sidewall of lock sleeve
Line structure, lock sleeve are connect with punching pin external threading, and the lower surface on limit convex edge is resisted against on lock sleeve.
Preferred: the inner sidewall of the jumper bar lower end further includes the cylindrical surface on the downside of tapered surface, is had on cylindrical surface
There is the guiding raised line being axially arranged along jumper bar.
It is preferred: the punching pin set further include have with integrally formed second cylindrical portion of tapered portion, the second cylindrical portion
Axial direction on outer peripheral surface along the second cylindrical portion offers guide groove, and guiding raised line is slidably arranged in guide groove, the cross of guide groove
Section and the cross section of guiding raised line are semicircle.
It is preferred: the positioning protrusion and mutual corresponding locating slot is hemispherical one by one with positioning protrusion.
The utility model has the following beneficial effects: the utility model relates to a kind of leather punched hole machine punch structure, it should
The punching pin set of formed punch and the special connecting structure of jumper bar move up and down punching pin set can not only relative to jumper bar, but also can not be opposite
It is rotated in jumper bar, punching pin is covered to be positioned firm on jumper bar, when needing replacing punching pin, lock sleeve is unscrewed so that lock sleeve and punching pin
Set separation can extract punching pin from punching pin set, and punching pin replaces fast and easy.
Detailed description of the invention
Fig. 1 is the schematic diagram of leather punched hole machine punch structure；
Fig. 2 is the schematic diagram of the section structure of A-A in Fig. 1；
1- jumper bar in figure, 2- punching pin set, 3- punching pin, 4- lock sleeve, 10- tapered surface, 10a- cyclic convex edge one, 11- step
Face, 11a- positioning protrusion, the cylindrical surface 12-, 12a- guiding raised line, 20- tapered portion, 21- cyclic convex edge two, the second cylindrical portion of 22-,
The first cylindrical portion of 30-, 30a- limit convex edge, 31- interconnecting piece.
Specific embodiment
Illustrate specific embodiment of the present invention in conjunction with attached drawing 1 to Fig. 2: a kind of leather punched hole machine punching of the utility model
Header structure, including jumper bar 1, punching pin set 2 and punching pin 3, jumper bar 1 are hollow structure, and punching pin set 2 is plugged on the lower end of jumper bar 1, punching pin
3 are connected on punching pin set 2；
The inner sidewall of 1 lower end of jumper bar is tapered surface 10 and step surface 11, is provided with cyclic convex edge on tapered surface 10
One 10a, positioning protrusion 11a is evenly arranged on step surface 11 along the circumferential direction, and the quantity of positioning protrusion 11a is 2 or more；
The upper end of the punching pin set 2 is the tapered portion 20 to match with tapered surface 10, and tapered portion 20 is hollow structure, cone
There is the annular groove embedding with one 10a phase of cyclic convex edge, upper surface and 11 phase of step surface of tapered portion 20 on the lateral wall in shape portion 20
Mutually matching, the upper surface of tapered portion 20 is circumferentially arranged with mutual corresponding locating slot, punching pin cover 2 one by one with positioning protrusion 11a
Inner peripheral surface has cyclic convex edge 2 21, and the lower end of punching pin set 2 is annular shape, has screw thread on the circular lateral wall of punching pin set 2
Structure；
The punching pin 3 includes the first cylindrical portion 30 and interconnecting piece 31, and interconnecting piece 31 is located at the upper end of the first cylindrical portion 30,
And it is plugged on cyclic convex edge 2 21, has limit convex along 30a on the outer peripheral surface of the first cylindrical portion 30, limit convex is along 30a's
Upper surface is resisted against on the lower end surface of punching pin set 2.The positioning protrusion 11a and mutual corresponding one by one with positioning protrusion 11a
Locating slot is hemispherical.So set, the upper end of punching pin set 2 is plugged on the lower end of jumper bar 1, one 10a of cyclic convex edge is embedded in
In annular groove, punching pin set 2 is axially located on jumper bar 1, and the upper surface of punching pin set 2 is resisted against on step surface, positioning protrusion 11a
It extends to and rotate punching pin set can not relative to jumper bar 1, punching pin set 2 is circumferentially located on jumper bar 1, i.e. punching pin set
2 and the special connecting structure of jumper bar 1 punching pin set 2 can not only be moved up and down relative to jumper bar 1, but also can not be relative to jumper bar 1
Rotation.
The cross section of the interconnecting piece 31 is D-shape configuration, and the cross section of the medial surface of cyclic convex edge 2 21 is and connection
The D-shape configuration that portion 31 matches.So set, interconnecting piece 31 is plugged on cyclic convex edge 2 21 and the D-shape configuration of interconnecting piece 31
Punching pin 3 is carried out circumferentially positioned, punching pin 3 is avoided to rotate during punching, which makes punching pin 3 cover 2 in punching pin
Upper fixing-stable.
It further include can have screw thread knot along the first cylindrical portion 30 lock sleeve 4 in axial sliding, the inner sidewall of lock sleeve 4
Structure, lock sleeve 4 are threadedly coupled with punching pin set 2, and limit convex is resisted against on lock sleeve 4 along the lower surface of 30a.So set, locking
Set 4 position up and down to punching pin 3 after being threadedly coupled with punching pin set 2, and punching pin 3 is avoided to move up and down in use,
And when needing replacing punching pin, lock sleeve 4 is unscrewed so that lock sleeve 4 and punching pin set 2 separates, it can be by punching pin 3 from punching pin
It is extracted on set 2, punching pin 3 replaces fast and easy.
The inner sidewall of 1 lower end of jumper bar further includes having on the cylindrical surface 12 of 10 downside of tapered surface, cylindrical surface 12
There is the guiding raised line 12a being axially arranged along jumper bar 1.The described punching pin set 2 further includes having and tapered portion 20 integrally formed the
Two cylindrical portions 22, the axial direction on the outer peripheral surface of the second cylindrical portion 22 along the second cylindrical portion 22 offer guide groove, are oriented to raised line 12a
It is slidably arranged in guide groove, the cross section of guide groove and the cross section of guiding raised line 12a are semicircle.So set, punching pin
During set 2 is mounted on jumper bar 1, guiding raised line 12a can guarantee that positioning protrusion is directed at locating slot, facilitate punching pin set 2
Installation.
This embodiment is just an exemplary description of this patent, does not limit its protection scope, those skilled in the art
Member can also be changed its part, as long as it does not exceed the essence of this patent, within the protection scope of the present patent.
Claims (4)
1. a kind of leather punched hole machine punch structure, it is characterised in that: including jumper bar (1), punching pin set (2) and punching pin (3), jumper bar
It (1) is hollow structure, punching pin set (2) is plugged on the lower end of jumper bar (1), and punching pin (3) is connected on punching pin set (2)；
The inner sidewall of described jumper bar (1) lower end includes tapered surface (10) and step surface (11), and tapered surface is provided with ring on (10)
Shape convex edge one (10a) is evenly arranged with positioning protrusion (11a) along the circumferential direction on step surface (11), positioning protrusion (11a)
Quantity is 2 or more；
The upper end of the punching pin set (2) is the tapered portion (20) to match with tapered surface (10), and tapered portion (20) is hollow knot
Structure has the annular groove mutually embedding with cyclic convex edge one (10a) on the lateral wall of tapered portion (20)；The upper surface of tapered portion (20) with
Step surface (11) is mutually matched, and the upper surface of tapered portion (20) is circumferentially arranged with mutual corresponding one by one with positioning protrusion (11a)
Locating slot；The inner peripheral surface of punching pin set (2) has cyclic convex edge two (21), and the lower end of punching pin set (2) is annular shape, punching pin set (2)
There is helicitic texture on the lateral wall of lower end annular shape；
The punching pin (3) includes the first cylindrical portion (30) and interconnecting piece (31), and interconnecting piece (31) is located at the first cylindrical portion (30)
Upper end, and be plugged in cyclic convex edge two (21)；There is limit convex edge (30a) on the outer peripheral surface of first cylindrical portion (30),
Limit convex is resisted against on the lower end surface of punching pin set (2) along the upper surface of (30a)；
The inner sidewall of described jumper bar (1) lower end further includes the cylindrical surface (12) on the downside of tapered surface (10), cylindrical surface (12)
The upper guiding raised line (12a) being axially arranged with along jumper bar (1)；
The punching pin set (2) further includes having and tapered portion (20) integrally formed second cylindrical portion (22), the second cylindrical portion
(22) axial direction on outer peripheral surface along the second cylindrical portion (22) offers guide groove, and guiding raised line (12a) is slidably arranged in guiding
In slot, the cross section of guide groove and the cross section of guiding raised line (12a) are semicircle.
2. a kind of leather punched hole machine punch structure according to claim 1, it is characterised in that: the interconnecting piece (31)
Cross section be D-shape configuration, the cross section of the medial surface of cyclic convex edge two (21) is the D-shaped knot to match with interconnecting piece (31)
Structure.
3. a kind of leather punched hole machine punch structure according to claim 1, it is characterised in that: further including can be along first
Lock sleeve (4), the inner sidewall of lock sleeve (4) have helicitic texture, lock sleeve (4) and punching pin set to cylindrical portion (30) in axial sliding
(2) it is threadedly coupled, limit convex is resisted against on lock sleeve (4) along the lower surface of (30a).
4. a kind of leather punched hole machine punch structure according to claim 1, it is characterised in that: the positioning protrusion
(11a) and mutual corresponding locating slot is hemispherical one by one with positioning protrusion (11a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821836335.7U CN209493591U (en) | 2018-11-08 | 2018-11-08 | A kind of leather punched hole machine punch structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821836335.7U CN209493591U (en) | 2018-11-08 | 2018-11-08 | A kind of leather punched hole machine punch structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209493591U true CN209493591U (en) | 2019-10-15 |
Family
ID=68151339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821836335.7U Expired - Fee Related CN209493591U (en) | 2018-11-08 | 2018-11-08 | A kind of leather punched hole machine punch structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209493591U (en) |
-
2018
- 2018-11-08 CN CN201821836335.7U patent/CN209493591U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191015 Termination date: 20211108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |