CN206912132U - The scissors pull bar resetting means of cold headers cutting mechanism - Google Patents
The scissors pull bar resetting means of cold headers cutting mechanism Download PDFInfo
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- CN206912132U CN206912132U CN201720920674.2U CN201720920674U CN206912132U CN 206912132 U CN206912132 U CN 206912132U CN 201720920674 U CN201720920674 U CN 201720920674U CN 206912132 U CN206912132 U CN 206912132U
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- scissors
- pull bar
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- air cavity
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Abstract
The utility model discloses a kind of scissors pull bar resetting means of cold headers cutting mechanism, including scissors pull bar, transmission component and reset assembly, scissors pull bar runs through scissors support, the end that one end of scissors pull bar is located at outside scissors support is connected with cutting assemblies, the other end of scissors pull bar stretches out outside scissors support and is fixedly connected with transmission component, the reset assembly is between transmission component and scissors pull bar, and after transmission component driving scissors pull bar moves back and forth, after being stopped with transmission component, the reset assembly can drive transmission component toward transmission component move when the cylinder resetting means that is resetted of opposite direction.The utility model replaces spring stress to reset with air pressure, it is remained uniform force, while can solve the problem that the problem of spring life is short again, finally improves reseting precision.
Description
Technical field
It the utility model is related to a kind of scissors of the homing device, particularly cold headers cutting mechanism of cold headers shear
Pull bar resetting means.
Background technology
Cold headers are the special equipments for being specifically used to produce in batches the fasteners such as nut bolt based on pier.Existing cold headers
Overall structure by can functionally be divided into main drive gear, feed mechanism, cutting mechanism, cold-heading molding mechanism and release
Cutting agency etc. five is most of.Cold headers are in wire rod process, metal wire rod quilt in the presence of above-mentioned feed mechanism
Deliver in cutting mechanism, after the shear plate clip of cutting mechanism presets the metal stock of measured length, then by gripping machinery
The metal stock is delivered to and plastic forming is carried out in cold-heading molding mechanism by hand.Metal wire rod cuts in this above-mentioned whole process
During material, the quality for cutting material directly affects the cold-heading plasticity effect in later stage, and current cutting machine structure is as shown in figure 1, its is main
Including scissors support 1, scissors pull bar 2, transmission component 3 and reset assembly 4, scissors pull bar 2 runs through scissors support 1, and scissors is drawn
The end that one end of bar 2 is located at outside scissors support 1 is connected with cutting assemblies 5, and the other end of scissors pull bar 2 stretches out scissors support 1
Outer and be fixedly connected with transmission component 3, reset assembly 4 is fixed on scissors support 1, the reset assembly 4 mainly by
The both sides of scissors pull bar 2 set a spring 4-1 respectively, then by spring 4-1 with being fixed on transmission component 3 and scissors pull bar
Crossbeam 4-2 apical graftings between 2, when being moved by crossbeam 4-2 with the active force of transmission component 3, push the spring 4-1 compressions, and
Drive scissors pull bar 2 to move final control cutting assemblies 5 to work, when transmission component 3 is without active force, the spring 4-1 that is compressed
Reset, promote scissors pull bar 2 to reset, realized and resetted by spring 4-1 so as to realize, but due to spring in by compression process power
Size changes, and discontinuity, easily causes the traffic direction of scissors pull bar 2 to enter line displacement, the final essence for influenceing shearing
Degree, while the short life of spring is, it is necessary to change, it is therefore desirable to improve.
Utility model content
The purpose of this utility model is to provide one kind in order to solve above-mentioned the deficiencies in the prior art and replace spring with cylinder,
So that stress is more uniform than spring when resetting, and the scissors pull bar of the cold headers cutting mechanism longer compared to its life-span of spring
Resetting means.
To achieve these goals, the scissors pull bar resetting means of the cold headers cutting mechanism designed by the utility model,
Including scissors pull bar, transmission component and reset assembly, scissors pull bar runs through scissors support, and one end of scissors pull bar is located at scissors
End outside support is connected with cutting assemblies, and the other end of scissors pull bar, which stretches out outside scissors support and fixed with transmission component, to be connected
Connect, the reset assembly be between transmission component and scissors pull bar, and when transmission component driving scissors pull bar carry out it is reciprocal
After motion, after being stopped with transmission component, the reset assembly can drive transmission component toward transmission component move when negative side
To the cylinder resetting means resetted.
Existing spring reset has been substituted for the mode of cylinder reset by said structure, so as to solve spring compressed
The problem of size of power changes and influences reseting precision next time in journey, resetted by air pressure instead of stress, make it all the time
Uniform force is kept, while can solve the problem that the problem of spring life is short again, finally improves reseting precision.
Preferably, in order that overall structure is simpler, cylinder resetting means is fixed on scissors support, and the cylinder is answered
Position device includes two or more around scissors pull bar of push rod, push rod cover plate and ring cloth and into symmetrically arranged air cavity,
The push rod described in one is provided with each air cavity, apical grafting is in above-mentioned push rod cover plate after one end stretching air cavity of the push rod
On, the push rod cover plate is fixed between transmission component and scissors pull bar, is provided with the end for the push rod for stretching into air cavity and air cavity
The piston of upper and lower end parts apical grafting, air cavity is divided into two sparkling chambers by the piston, relative to piston on each air cavity
Both sides be equipped with a cushion chamber, and each chamber is connected with a corresponding cushion chamber, and air admission hole is provided with air cavity.
It is stable in order to improve the gas pressure in air cavity, it is connected with air accumulator on the air admission hole of air cavity.
In order to improve sealing effectiveness, more than two sealing rings are provided between piston and the end face of air cavity.
The step of its method, is as follows：
Cylinder resetting means is set in the one side of scissors support towards transmission component, and the cylinder resetting means is to pass through
Stretched out in scissors pull bar around the bar wall of the part of scissors support and be symmetrical arranged more than two air cavitys, then in each air cavity
It is interior place one can with scissors pull bar movement locus identical push rod, while push rod stretch out corresponding to after air cavity with being arranged on biography
The push rod cover plate apical grafting that can be synchronized with the movement between component and scissors pull bar and with the motion of scissors pull bar is moved, and is being placed in
Push rod end set piston inside air cavity so that air cavity is isolated into two chambers by piston, and sets one on each chamber
Individual cushion chamber, during work, scissors pull bar will be driven to be moved toward the direction of cutting assemblies by transmission component, now can band simultaneously
Dynamic push rod cover plate moves toward the direction of cutting assemblies, so as to which push rod cover plate promotes piston to be moved in air cavity, extrudes the chamber of side
Indoor gas so that the gas can run to in the cushion chamber of corresponding chamber, when needing reset, due to now passing
Dynamic component does not work, and the gas in cushion chamber can come back to original chamber originally, so as to promote piston reset, piston
Push rod cover plate is promoted to reset, it is final to drive push rod to reset.
In order to keep stable gas pressure, power is uniform when improving reset effect and resetting, by carrying out pressurize to each air cavity
Operation.
The scissors pull bar resetting means for the cold headers cutting mechanism that the utility model obtains, solves spring in compression process
The size of middle power changes and influences reseting precision next time, and this technology replaces stress to reset with cylinder, remains it
Uniform force, while the problem of spring life is short is can solve the problem that again, finally improve reseting precision.
Brief description of the drawings
Fig. 1 is the structural representation of prior art；
Fig. 2 is a kind of structural representation for the scissors pull bar resetting means that embodiment 1 provides cold headers cutting mechanism；
Fig. 3 is a kind of structural representation for the scissors pull bar resetting means that embodiment 2 provides cold headers cutting mechanism.
In figure：Scissors support 1, scissors pull bar 2, transmission component 3, reset assembly 4, spring 4-1, crossbeam 4-2, scissors group
Part 5, air cavity 6, chamber 6-1, push rod 7, push rod cover plate 8, cushion chamber 9, piston 10, air accumulator 11, air admission hole 12, sealing ring 13.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1：
As shown in Fig. 2 a kind of scissors pull bar resetting means for cold headers cutting mechanism that the present embodiment provides, including scissors
Pull bar 2, transmission component 3 and reset assembly 4, scissors pull bar 2 run through scissors support 1, and one end of scissors pull bar 2 is located at scissor machine
End outside seat 1 is connected with cutting assemblies 5, and the other end of scissors pull bar 2 stretches out outside scissors support 1 and fixed with transmission component 3
Connection, the reset assembly 4 are positioned at transmission component 3 and scissors pull bar 2 between, and when the driving of transmission component 3 scissors pull bar 2 enters
After row moves back and forth, after being stopped with transmission component 3, the reset assembly 4 can drive transmission component 3 to be transported toward transmission component 3
The cylinder resetting means that opposite direction when dynamic is resetted.
Existing spring reset has been substituted for the mode of cylinder reset by said structure, so as to solve spring compressed
The problem of size of power changes and influences reseting precision next time in journey, resetted by air pressure instead of stress, make it all the time
Uniform force is kept, while can solve the problem that the problem of spring life is short again, finally improves reseting precision.
As shown in Fig. 2 in the present embodiment in order that overall structure is simpler, cylinder resetting means is fixed on scissors support
On 1, the cylinder resetting means include two or more around scissors pull bar 2 of push rod 7, push rod cover plate 8 and ring cloth and into
Symmetrically arranged air cavity 6, after the interior push rod 7 being provided with described in one of each air cavity 6, one end stretching air cavity 6 of the push rod 7
On above-mentioned push rod cover plate 8, the push rod cover plate 8 is fixed between transmission component 3 and scissors pull bar 2 equal apical grafting, is being stretched into
The end of the push rod 7 of air cavity 6 is provided with the piston 10 with the upper and lower end parts apical grafting of air cavity 6, and air cavity 6 is divided to for two bands by the piston 10
The chamber 6-1 of gas, a cushion chamber 9, and each chamber 6- are equipped with relative to the both sides of piston 10 on each air cavity 6
1 is connected with a corresponding cushion chamber 9, and air admission hole 12 is provided with air cavity 6.
Transmission component 3 described in the present embodiment is cylinder, at the same cutting assemblies 5 described in the present embodiment and
How to drive cutting assemblies 5 to work by scissors pull bar 2 to belong to the routine techniques of cold headers cutting mechanism, do not retouch specifically herein
State.
Its method and step is as follows：
Cylinder resetting means is set in the one side of scissors support 1 towards transmission component 3, and the cylinder resetting means is logical
Cross to stretch out around the bar wall of the part of scissors support 1 in scissors pull bar 2 and be symmetrical arranged more than two air cavitys 6, then each
Place in individual air cavity 6 one can with the movement locus identical push rod 7 of scissors pull bar 2, while push rod 7 stretch out corresponding to air cavity 6
Afterwards with being arranged on the push rod lid that can be synchronized with the movement between transmission component 3 and scissors pull bar 2 and with the motion of scissors pull bar 2
The apical grafting of plate 8, and in the end set piston 10 of push rod 7 being placed in inside air cavity 6 so that air cavity 6 is isolated into two chambers by piston 10
Room 6-1, and a cushion chamber 9 is set on each chamber 6-1, during work, by transmission component 3 scissors pull bar 2 will be driven past
The direction motion of cutting assemblies 5, can now drive push rod cover plate 8 to be moved toward the direction of cutting assemblies 5 simultaneously, so as to push rod cover plate
8 promotion pistons 10 moved in air cavity 6, extrude the gas in the chamber 6-1 of side so that the gas can run into corresponding cavity
In the cushion chamber 9 of room 6-1 connections, when needing to reset, because now transmission component 3 does not work, and originally in cushion chamber 9
Gas can come back to original chamber 6-1, and so as to promote piston 10 to reset, piston 10 promotes push rod cover plate 8 to reset, final band
Dynamic push rod 7 resets.
As shown in Fig. 2 the air cavity 6 includes two in the present embodiment, and it is respectively arranged on the mutual up and down of scissors pull bar 2
Symmetrical position so that the power that scissors pull bar is subject to about 2 is uniform, the piston 10 in each air cavity 6 by air cavity 6 divide for
Left and right two chambers 6-1, during work, cylinder, which stretches out, promotes scissors pull bar 2 to be moved toward the right so as to promote cutting assemblies 5 to work,
Now push rod cover plate 8 is driven also to be moved toward the right, so as to promote piston 10 to be moved toward the right, the chamber on the now extruding of piston 10 the right
Room 6-1 so that the gas in the chamber 6-1 on the right is extruded in the cushion chamber 9 on the right, when needing to reset, cylinder not work
Make, be not under pressure in the cushion chamber 9 on the right now, allow gas to enough return in the chamber 6-1 on the right, in the effect of gas
Under, promote piston 10 to be moved toward the left side, and the gas on the left side is extruded in the cushion chamber 9 on the left side, while drive push rod cover plate 8
Moved toward the left side, final drive scissors pull bar 2 is realized toward left side movement to be resetted.
Embodiment 2
A kind of as shown in figure 3, substantially knot of the scissors pull bar resetting means for cold headers cutting mechanism that the present embodiment provides
Structure is same as Example 1, unlike, it is stable in order to improve the gas pressure in air cavity, connected on the air admission hole 12 of air cavity 6
There is air accumulator 11, in order to improve sealing effectiveness, more than two sealing rings 13 are provided between the end face of piston 10 and air cavity 6.
In order to keep stable gas pressure, power is uniform when improving reset effect and resetting, by carrying out pressurize to each air cavity 6
Operation, is set by said structure, by setting air accumulator 11, so as to ensure the stable gas pressure in air cavity 6, while passes through sealing
The design of circle 13 improves sealing effectiveness.
Claims (4)
1. a kind of scissors pull bar resetting means of cold headers cutting mechanism, including scissors support（1）, scissors pull bar（2）, transmission
Component（3）And reset assembly（4）, scissors pull bar（2）Through scissors support（1）, scissors pull bar（2）One end be located at scissor machine
Seat（1）Outer end is connected with cutting assemblies（5）, scissors pull bar（2）The other end stretch out scissors support（1）It is outer and with transmission
Component（3）It is fixedly connected, it is characterized in that：The reset assembly（4）It is to be located at transmission component（3）With scissors pull bar（2）Between, and
Work as transmission component（3）Drive scissors pull bar（2）After moving back and forth, with transmission component（3）After being stopped, the reset group
Part（4）Transmission component can be driven（3）Toward transmission component（3）The cylinder resetting means that opposite direction during motion is resetted.
2. the scissors pull bar resetting means of cold headers cutting mechanism according to claim 1, it is characterized in that：Cylinder resets dress
Put and be fixed on scissors support（1）On, the cylinder resetting means includes push rod（7）, push rod cover plate（8）And ring cloth is drawn in scissors
Bar（2）Around two or more and into symmetrically arranged air cavity（6）, in each air cavity（6）Inside it is provided with the push rod described in one
（7）, the push rod（7）One end stretch out air cavity（6）Equal apical grafting is in above-mentioned push rod cover plate afterwards（8）On, the push rod cover plate（8）
It is fixed on transmission component（3）With scissors pull bar（2）Between, stretching into air cavity（6）Push rod（7）End be provided with and air cavity（6）
The piston of upper and lower end parts apical grafting（10）, the piston（10）By air cavity（6）It is divided into two sparkling chambers（6-1）, at each
Air cavity（6）On relative to piston（10）Both sides be equipped with a cushion chamber（9）, and each chamber（6-1）With corresponding one
Individual cushion chamber（9）Connection, in air cavity（6）It is provided with air admission hole（12）.
3. the scissors pull bar resetting means of cold headers cutting mechanism according to claim 2, it is characterized in that：In air cavity（6）
Air admission hole（12）On be connected with air accumulator（11）.
4. the scissors pull bar resetting means of the cold headers cutting mechanism according to Claims 2 or 3, it is characterized in that：In piston
（10）With air cavity（6）End face between be provided with more than one sealing ring（13）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720920674.2U CN206912132U (en) | 2017-07-27 | 2017-07-27 | The scissors pull bar resetting means of cold headers cutting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720920674.2U CN206912132U (en) | 2017-07-27 | 2017-07-27 | The scissors pull bar resetting means of cold headers cutting mechanism |
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| Publication Number | Publication Date |
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| CN206912132U true CN206912132U (en) | 2018-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720920674.2U Active CN206912132U (en) | 2017-07-27 | 2017-07-27 | The scissors pull bar resetting means of cold headers cutting mechanism |
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| CN (1) | CN206912132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520371A (en) * | 2017-07-27 | 2017-12-29 | 宁波思进机械股份有限公司 | The scissors pull bar resetting means and repositioning method of cold headers cutting mechanism |
-
2017
- 2017-07-27 CN CN201720920674.2U patent/CN206912132U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520371A (en) * | 2017-07-27 | 2017-12-29 | 宁波思进机械股份有限公司 | The scissors pull bar resetting means and repositioning method of cold headers cutting mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 315103 Zhejiang city of Ningbo province high tech Zone South Road No. 1832 (the origin of the intelligent forming device of Limited by Share Ltd) Patentee after: SIJIN INTELLIGENT FORMING MACHINERY CO.,LTD. Address before: The national high tech Zone of Ningbo city in Zhejiang Province, 315103 South Road No. 1832 (Ningbo Sijin machinery Limited by Share Ltd) Patentee before: NINGBO SIJIN MACHINERY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP02 | Change in the address of a patent holder |
Address after: 315103 No. 1832 Jiangnan Road, hi tech Zone, Ningbo, Zhejiang Patentee after: SIJIN INTELLIGENT FORMING MACHINERY CO.,LTD. Address before: 315103 Jiangnan Road 1832, Ningbo new high tech Zone, Zhejiang (Limited by Share Ltd) Patentee before: SIJIN INTELLIGENT FORMING MACHINERY CO.,LTD. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 699 Jinghua Road, High tech Zone, Ningbo City, Zhejiang Province, 315103 Patentee after: SIJIN INTELLIGENT FORMING MACHINERY CO.,LTD. Address before: 315103 No. 1832 Jiangnan Road, hi tech Zone, Zhejiang, Ningbo Patentee before: SIJIN INTELLIGENT FORMING MACHINERY CO.,LTD. |
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| CP02 | Change in the address of a patent holder |