JPH0635023B2 - Work intermittent feed device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a feeding device for intermittently feeding a long work. More specifically, the present invention is used by being incorporated in an automatic processing machine that has a plurality of work steps such as a press step and is capable of automatically processing workpieces that are intermittently supplied,
The present invention relates to a feed device adapted to supply a continuous work or a work of an appropriate length to the working process.

[Prior Art] A continuous work or a work of an appropriate length is automatically and sequentially supplied to an automatic processing machine, appropriately processed in each working process such as a press process of the automatic processing machine, and supplied to electric and electronic devices. Manufacturing of components and the like is performed.

2. Description of the Related Art In recent years, as electric and electronic devices have become smaller, lighter, and higher in density, there has been a marked increase in needs for lighter and thinner parts and higher accuracy of the components that compose them.

On the other hand, the production volume of products is becoming smaller and smaller in line with the diversification of needs, and in the press processing industry, there is a strong demand for quick setup change and high-speed and high-precision processing.

For this reason, the advent of high-quality feed devices that meet the above requirements is awaited.

In the roll feed device, the method of changing the roll rotation angle by changing the drive gear ratio or the method of changing the feed amount by replacing the roll itself is generally adopted to change the feed amount of the feed device. Has been done.

Although these methods are inexpensive, it takes a lot of time to change the feed amount and there is a decrease in accuracy due to slips and the like, and there is a problem in satisfying the above-mentioned requirements for high-speed and high-precision machining.

In order to solve this problem, in the gripper feed device and the like, changing the lever ratio of the drive lever is often used. Further, in order to improve accuracy, methods such as limiting with a block gauge so that the lever ratio is stably fixed, or fixing with a fixing stopper at the swinging end of the lever are adopted.

These methods are superior in accuracy to the above-mentioned methods. However, there is a problem in that the setup change takes time as in the method described above. At the same time, there is a problem that it is not possible to cope with slight changes in the surface condition, burrs, hardness, etc. of the feed material and changes with time of the feed device itself due to heat generated during operation. For this reason, in the present situation, workers of processing materials and feed devices have discovered subtle changes,
Since the operation of the feed device is stopped and fine adjustment is performed, a great amount of time and product are lost during the stop and adjustment of the feed device.

As a feeding device that is further advanced than the above-mentioned method, Japanese Utility Model Laid-Open No. 60-126454 discloses an oscillating rotation driving device and a first roll integrally fitted on a first roll shaft.
A second roll, which is integrally fitted on a second roll shaft extending parallel to the first roll shaft and configured to sandwich and transfer the plate material in cooperation with the first roll, and the first roll in one direction. Interlocking for operatively connecting the swing rotation driving device and the first and second rolls so that the second roll swings substantially the same amount in the opposite direction as the first roll when swinging by a predetermined amount. A device and a roll release device that, when the two rolls swing in a direction opposite to the plate material transfer direction, move the rolls in a direction relatively away from each other to release the clamping force applied to the plate material by both rolls. In addition, the interlocking device is fixed to the housing of the roll feed device, has a first block having a first guide groove that extends in the plate material transfer direction in alignment with the plate material transfer path, and slides in the first guide groove. A slider that movably fits It has an interlocking rod that interlocks the dynamic rotation driving device and the slider, and a second guide groove that is orthogonal to the first guide groove and extends in the moving direction of both rolls by the operation of the roll release device. Second block, a first arm having one end integrally fitted to the first roll shaft and having a rolling element engaging with the second guide groove at the other end, and one end having the second roll shaft A second arm that has a rolling element that is integrally fitted to the second guide groove and that engages with the second guide groove at the other end, and that is symmetrical to the first arm with respect to the plate material transfer path. A roll feed device is disclosed.

According to this feed device, it is possible to change the feed amount during operation.

[Problems to be Solved by the Invention]

However, in the device disclosed in Japanese Utility Model Laid-Open No. 60-126454, a crown gear and a spur gear, which are in constant contact with each other during operation, are used as an oscillating rotation drive device. For this reason,
The contact surface between the crown gear and the spur gear is worn. As a result, backlash between both gears increases with the lapse of operating time, making it difficult to finely adjust the feed rate in response to changes over time during operation. Particularly, in the case of high precision parts, the gap between the pilot pin and the pilot hole is required to be 10 μ or less, and the above-mentioned fine adjustment is very difficult.

The present invention has been made in view of the above problems, and an object of the present invention is to propose a feed device capable of fine adjustment with respect to a change over time in the feed amount during operation.

[Means for Solving the Problems]

In the present invention, a pair of work holding members for holding the transferred work from both sides are supported by fixed support members on both sides of the work, respectively, and the work is intermittently moved by the work holding members. In the feed device, the pair of work gripping members are connected to one approximate linear movement pin by a pair of links having the same length, and the approximate linear movement pin is supported at one end of the intermediate link, and the intermediate link. The other end of the intermediate link is connected to a rotary link rotatable about a fixed fulcrum, and the intermediate position of the intermediate link and a fixed pin located on the movement locus of the approximate linear movement pin are linked by a link, The above object is achieved by a work intermittent feeding device characterized in that the approximate linear movement pin is connected to the reciprocating member.

In the present invention, the moving pin is linearly moved by using the approximate linear mechanism to give the upper and lower gripping members (feeding rollers) a predetermined feed. Therefore, in the approximate linear system of the present invention, the length of the movable portion is about one half of that in the linear guide system, and the entire main body case is downsized and the cost is reduced.

Further, in the present invention, the reciprocating member is composed of a drive link rotatable about a fixed fulcrum, a cam rotating the drive link, and a connection link connecting the linear movement pin and the drive link. It is preferable.

With this configuration, the feed amount changing mechanism (fine adjustment mechanism) is not a special gear like the crown gear in the conventional device described above, but a combination of a worm and a worm wheel that is easy to process, economical, and uniform in accuracy. it can.

According to the present invention, during the operation of the feed device, the gear portion does not slide except during the fine adjustment. Therefore, the feed amount setting position accuracy is improved, and the fine adjustment accuracy during operation can be improved.
In addition, by rotating the worm shaft regardless of whether the feed device is in operation or stopped, it is possible to make a large change in the feed length accompanying the setup change, and to shorten the adjustment time associated with the lot change. . Further, according to the present invention, the feed amount can be freely changed in the range from minute to large during operation, so that it is possible to use two kinds of clutches as disclosed in Japanese Utility Model Laid-Open No. 61-12540. Indexing with different feed pitches can be performed, and punching plate processing can also be performed by using one feed device of the present invention.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 9, the work 3 supplied from the material supply device 2 is supplied to the press device 1 by the rolls 10 and 20, and punched between the punch tool 5 attached to the press slide 4 and the die metal fitting 6. , And is cut by the cutting tool 7.

As shown in FIG. 1, the feed device of the present invention includes a support shaft 11 provided above and below a transfer path of a work 3, rolls 10 and 20 rotatable around a support shaft 21, a brake arm 30, and a brake piece arm 73. It consists of

Although the rolls 10 and 20 are cylindrical rolls in the illustrated embodiment, the roll of the present invention may be a sector roll.

The engagement of the rolls 10 and 20 is controlled as the drive shaft 70 (FIG. 2) driven by the drive mechanism of the press device 1 rotates. The structure will be described below.

As shown in FIGS. 2 and 4, the support shaft 14 is swingably supported by the machine frame 1 via a bearing bush 15. A support arm 13 having a U-shape in FIG. 4 is attached to the support shaft 14, and the support shaft 11 is rotatably supported by a bearing 12 (FIG. 2) at an intermediate position of the support arm 13. .

In FIG. 1, the left end portion 13 a of the support arm 13 is held by a screw shaft 15 and a head 18.

The screw shaft 15 is screwed into the screw portion of the worm wheel 16 and is moved up and down by the rotation of the worm wheel 16. The worm wheel 16 meshes with the worm 17, and the worm 17 is provided on a shaft 71 a that penetrates inside a block 71 provided between the frames 1. As shown in FIG. 4, a sprocket 72 is fixed to the end of the shaft 71a. The sprocket 72 is driven by a motor (not shown).

Therefore, by driving the drive motor according to the thickness of the work 3, the support arm 13 can be moved up and down to adjust the position of the support shaft 11 and adjust the gap between the rolls 10 and 20.

In FIG. 1, the head 18 is attached to the tip of a rod 19a of an air cylinder 19 which is pushed downward with a constant pressure.

In FIG. 1, the support shaft 21 is rotatably supported by a bearing 22 (FIG. 2) on a release arm 23 that can swing around a support shaft 24.

A roller 25 is rotatably supported at the end of the release arm 23 opposite to the support shaft 24.
It is in contact with a cam 26 rotatable around 7.

A gear 28 is fixed to the end of the shaft 27, and the gear 28 is connected to the shaft 7
It meshes with a gear 29 fixed to the end of 0. Axis 70
The release arm 23 swings around the support shaft 24 in accordance with the rotation of, and the engagement between the roller 20 and the roller 10 is controlled.

Further, as the drive shaft 70 rotates, the brake pieces 35, 36
The engagement and disengagement of the work 3 is controlled, and the delivery of the work 3 is controlled.

As shown in FIGS. 1 and 5, the shaft 38 is attached to the frame 1.
Is rotatably supported, and a pair of arms 37 is attached to the shaft 38. The shaft 39 is fixed to the arm 37, and the shaft 3
A U-shaped brake piece arm 73 is rotatably supported on the shaft 9 via a bearing 74.

The brake piece arm 73 can move integrally with the support shaft 11 of the roll 10 as shown in FIGS. 1 and 2, and as described above, the position of the roll 10 is adjusted according to the thickness of the work. In this case, the brake piece arm 73 also moves in the same amount as the roll 10 in conjunction.

A fixed brake piece 36 is attached to the lower surface of the brake piece arm 73 as shown in FIG. The brake piece 36 is made of a material having appropriate wear resistance.

In FIGS. 1 and 2, a support shaft 31 is rotatably supported on the frame 1, and a U-shaped brake arm 30 is attached to the support shaft 31 as shown in FIG. A brake piece 35 is fixed to the brake arm 30, and a roller 32 is rotatably supported.

The brake piece 35 engages with the brake piece 36, and the roller 32
Is engaged with a cover 34 fixed to the shaft 33.

A gear is fixed to the shaft 33, and this gear is the above-mentioned gear 28.
The rotation of the drive shaft 70 is transmitted to the cam 34.

Therefore, as the drive shaft 70 rotates, the brake pieces 35 and 36 are engaged and disengaged by the cam 34, and the work 3 is moved and stopped.

In FIG. 1, the brake arm 30 is biased by a compression spring 84. The shaft 79 vertically erected from the frame 1 is rotated to elevate and lower the spring receiver 80 screwed with the screw 79a to adjust the urging force of the spring 84, and the brake pieces 35, 36.
The contact force of can be adjusted.

That is, as shown in FIG. 7, the protrusion protruding from the spring receiver 80 slides along the recess of the detent 82 fixed to the frame. On the other hand, in FIG. 1, a bevel gear 76 is integrally fixed to a shaft 79, and the bevel gear 76 is a bevel gear 77.
Meshes with. In FIG. 6, the shaft to which the bevel gear 77 is attached projects from the frame 1, and the knob 78 is attached to the outside of the frame of this shaft. Therefore, by manually rotating the knob 78, the spring receiver 80 can be moved up and down to adjust the urging force of the brake pieces 35, 36.

Next, the intermittent feed mechanism of the rolls 10 and 20 of the present invention will be described.

As shown in FIGS. 2 and 3, the lever 41 is integrally connected to the support shaft 11 of the roll 10, and the lever 4
1 is pivotally attached to a link 43 by a pin 42. Similarly, a lever 47 having the same length as the lever 41 is integrally connected to the support shaft 21 of the roll 20.
7 is pivotally attached to the link 45 by a pin 46.

The links 43 and 45 have the same length and are pivotally attached to a common pin 44.

The pin 44 moves along a path approximated to a straight line by the approximate linear motion mechanism having the following structure.

That is, in FIGS. 2 and 3, the approximate linear movement pin 44 is pivotally supported at one end of the intermediate link 51. The other end of the intermediate link 51 is pivotally supported by the rotating link 53. The rotation link 53 is fixed to the fulcrum shaft 54. The fulcrum shaft 54 is rotatably supported at a fixed position on the frame 1 by a bearing 55 (FIG. 2).

Similarly, a fulcrum shaft 58 is rotatably supported at a fixed position on the frame 1 by a bearing 59 (FIG. 2). Here, the installation position of the fulcrum shaft 58 is located on the movement locus of the approximate linear movement pin 44.

The fulcrum shaft 58 provided at a fixed position and the intermediate link 5 described above.
A link 57 is connected to the pin 56 projecting at the intermediate position of 1. Reference numeral 57a indicates a bearing that allows the pin 56 and the link 57 to rotate relative to each other.

The approximate linear movement pin 44 is connected to the reciprocating member as described below.

As described above, the links 51, 53, 57 constitute an approximate linear movement mechanism.

Therefore, when reciprocatingly moved by the reciprocating member, the approximate linear movement pin 44 is reciprocally moved along a path that approximates a straight line.

Next, the reciprocating member of this embodiment will be described with reference to FIGS. 2 and 3.

The reciprocating member of the present embodiment includes a drive link 65, cams 69a and 69b for rotating the drive link 65, and connecting links 61 and 63. By reciprocating the drive link 65 by the cams 69a and 69b, The approximate linear movement pin 44 is reciprocated.

A fulcrum shaft 66 is rotatably supported at a fixed position of the frame 1. Two cam arms 67a and 67b on the fulcrum shaft 66
Are attached at an angle to each other, and each cam arm 67a,
Rollers 68a and 68b are rotatably supported at the tip of 67b.

The cams 69a and 69b are attached to the shaft 70 described above,
The cams 69a, 69b are engaged with the rollers 68a, 68b supported by the cam arms 67a, 67b, and the cam arms 67a, 67b are rotated by the rotation of the drive shaft 70 of the press.

The drive link 65 is attached to the fulcrum shaft 66 to which the cam arms 67a and 67b are fixed. Therefore, the drive link 65 is rotated in synchronization with the timing of the pressing process by the rotation of the drive shaft 70.

Connect the tip of the drive link 65 and the approximate linear movement pin 44 to 2
Drive links 65 are connected by book links 63, 61.
The reciprocating motion of is converted into the reciprocating motion of the approximate linear movement pin 44.

The amount of movement of the approximate linear movement pin 44 described above can be adjusted as follows. As mentioned above, the link 63 and the link 61 are connected by the pin 62.

In order to adjust the position of the adjusting pin 90, the adjusting pin 90 is attached to the link 89 movable around the fixed fulcrum 88 of the frame 1.
Is supported. The feed amount adjusting gear 87 is integrally attached to the root portion of the link 89, and the link 89 can be rotated by rotating the gear 87 as described later.

The pin 62 and the adjusting pin 90 are connected by a link 91,
The amount of movement of the pin 62 can be adjusted by adjusting the position of the adjustment pin 90 to, for example, the position shown in FIG. 10 and the position shown in FIG. 11, and therefore the amount of movement of the approximate linear movement pin 44 can be adjusted. Is.

The feed amount of the approximate linear movement pin 44 becomes zero by positioning the adjustment pin 90 supporting the links 89 and 91 having the same length on the traveling line of the worm.

In FIG. 3, a shaft 84 penetrates through a block 99 fixed to the frame 1, and the shaft 84 is rotatably supported by a bearing bush 98 and thrust bearings 85a, 85.
The thrust load is received by b. As shown in FIG.
A worm 86 is attached to the shaft 84, and the worm 84 meshes with the gear 87 to rotate the feed amount adjusting gear 87. A bevel gear 83 is attached to the end portion of the shaft 84, and the bevel gear 83 meshes with the bevel gear 82 attached to the shaft 81.

As shown in FIG. 8, the shaft 81 is rotatably supported by blocks 97a and 97b attached to the frame 1 via bearings 94a and 94b. In addition, 95 is a distance piece and 96 is a retaining ring. A knob 93 on the end of the shaft 81
The sprocket 92 is attached to the shaft 81.
It is attached to the middle position of. By driving the sprocket 92 with a motor, it is possible to drive the worm 86 and the gear 87 via the bevel gears 82 and 83, change the position of the adjustment pin 90, and change the movement amount of the approximate linear movement pin 44.

In the above description, an example in which the movement amount of the approximate linear movement pin is changed by the link mechanism has been described. However, instead of the link mechanism, another mechanism such as a guide groove may be used. An example thereof will be described below with reference to FIGS. 13 and 14.

In the embodiment shown in FIGS. 13 and 14, similarly to the above-mentioned embodiments, the support shaft 11 provided above and below the work transfer path, the roll and the brake arm rotatable around the support shaft 21, The roll, the brake arm, and the brake piece arm, which are the brake piece arms, are driven in the same manner as in the above-described embodiment, and the approximate linear movement pin 44 is configured in the approximate linear movement mechanism as in the above-described embodiment. There is. The same or similar parts are designated by the same reference numerals, and detailed description thereof will be omitted.

Similar to the above-described embodiment, also in this embodiment, the approximate linear movement pin 44 is reciprocated from the drive shaft of the press via the drive link 65 and the connecting links 63 and 61 along a path approximate to a straight line.

In the present embodiment, the pin 62 connecting the pair of connecting links 63, 61 is slidably fitted in the arc-shaped guide groove 189a formed in the block 189. Guide groove 1
A block 189 having 89a is rotatably supported about a fulcrum shaft 188 provided on the frame 1 (not shown).

The block 189 is moved to the state shown in FIG. 13 by an appropriate rotation mechanism, for example, a mechanism similar to the rotation mechanism composed of a motor, a sprocket, a worm, and a gear for rotating the link 89 described with reference to FIG. To the state shown in FIG.

In the present embodiment having the above structure, the block 189 is used.
The reciprocating stroke of the pin 62 is changed by changing the rotation angle of the pin 62, and the amount of movement of the approximate linear movement pin, and thus the roller, can be adjusted.

〔The invention's effect〕

In the present invention, the moving pin is linearly moved by using the approximate linear mechanism to give the upper and lower gripping members (feeding rollers) a predetermined feed. Therefore, in the approximate linear system of the present invention, the length of the movable portion is about one half of that in the linear guide system, and the entire main body case is downsized and the cost is reduced.

Further, in the present invention, the reciprocating member is composed of a drive link rotatable about a fixed fulcrum, a cam rotating the drive link, and a connecting link connecting the approximate linear movement pin and the drive link. be able to.

With this configuration, the feed amount changing mechanism (fine adjustment mechanism) is not a special gear like the crown gear in the conventional device described above, but a combination of a worm and a worm wheel that is easy to process, economical, and uniform in accuracy. can do. According to the present invention, the sliding of gears is eliminated during the operation of the feed device except during the fine adjustment. Therefore, the feed amount setting position accuracy is improved, and the fine adjustment accuracy during operation can be improved. In addition, by rotating the worm shaft regardless of whether the feed device is in operation or stopped, it is possible to make a large change in the feed length accompanying the setup change, and to shorten the adjustment time associated with the lot change. .

Further, according to the present invention, the feed amount can be freely changed in the range from minute to large during operation, so
Indexing with different feed pitches can be performed without using two types of clutches as shown in Japanese Patent Publication No. 40, and punching plate processing as shown in FIG. 12 by using one feed device of the present invention. Can also be done.

According to the present invention, there is provided a feed device which can be finely adjusted with respect to a change in the feed amount during operation over time.

[Brief description of drawings]

FIG. 1 is a front view of a main part of a work intermittent feed device according to the present invention, FIG. 2 is a sectional view of a drive system of the feed device shown in FIG. 1, and FIG. 3 is a drive system shown in FIG. A front view of the main part, FIG. 4 is a plan view taken along the line IV-IV in FIG. 1, and FIG.
6 is a plan view taken along the line V-V in FIG. 1, FIG. 6 is a plan view taken along the line VI-VI in FIG. 1, FIG. 7 is a plan view taken along the line VII-VII in FIG. 1, and FIG. VIII is a plan view, and FIG. 9 is a front view of a press machine incorporating the feed device of the invention, FIG. 10 and FIG.
1 is a diagram for explaining the operation of the feed device of the present invention, FIG. 12 is a plan view of a product manufactured by a press machine incorporating the feed device of the present invention, and FIGS. 13 and 14 are the present invention. FIG. 6 is a diagram illustrating the operation of another embodiment of the feed device of FIG. 1 ... Frame, 10, 20 ... Roll, 11, 21 ... Support shaft, 41, 47 ... Lever, 42, 46 ... Pin, 43, 45 ... Link, 44 ... Approximate linear movement pin, 51 ...... Intermediate link, 53 ...... Rotating link, 54 ...... fulcrum shaft, 56 ...... pin, 57 …… link, 58 …… fulcrum shaft, 61 …… link, 62 …… pin, 63 …… link, 65 ...... Drive link, 66 ...... fulcrum shaft, 69a, 69b ...... cam, 70 ...... shaft, 81 ...... shaft, 82, 83 ...... bevel gear, 84 ...... shaft, 86 ...... worm, 87 ...... feed Quantity adjusting gear, 88 ... fixed fulcrum, 89 ... link, 90 ... adjusting pin, 91 ... link, 92 ... sprocket.

Claims (13)

[Claims] 1. An intermittent work, wherein a pair of work gripping members for gripping a transferred work from both sides are supported by fixed supporting members on both sides of the work, respectively, and the work is gripped by the work gripping member. In the feed device,
The pair of work gripping members is made up of one approximate linear movement pin (44) by a pair of links (43, 45) having the same length.
And the approximate linear movement pin (44) is supported at one end of the intermediate link (51), and the other end of the intermediate link (51) is rotatable around a fixed fulcrum (54). It is connected to the rotary link (53), and the intermediate position (56) of the intermediate link (51) and the fixed pin (58) located on the movement locus of the approximate linear movement pin (44) are linked (57). ), And the approximate linear movement pin (44) is connected to the reciprocating member. 2. The reciprocating member comprises a drive link (65) rotatable about a fixed fulcrum (66), cams (69a, 69b) for rotating the drive link, and the approximate linear movement pin (). The work intermittent feed device according to claim 1, characterized in that the work intermittent feed device comprises a connection link (61, 63) for connecting the drive link (65) with the drive link (44). 3. A pair of roller members for holding a transferred work from both sides are supported by fixed support members on both sides of the work, respectively, and the pair of roller members are intermittently rotated around the support member. In the intermittent feed device for moving a work by moving the work, the pair of roller members are connected to one approximate linear movement pin (44) by a pair of links (43, 45) having the same length. ,
The approximate linear movement pin (44) is supported on one end of the intermediate link (51), and the other end of the intermediate link (51) is a rotary link (53) rotatable about a fixed fulcrum (54).
The intermediate position (56) of the intermediate link (51) and the fixed pin (58) located on the movement locus of the approximate linear movement pin (44) are connected by a link (57), A work intermittent feed device characterized in that an approximate linear movement pin (44) is connected to a reciprocating member. 4. A movement amount adjusting pin (90) of the approximate linear movement pin (44) is supported by a link (89) movable around a fixed fulcrum (88), and the link (89) and the approximate linear movement are supported. The pin (44) is connected by a pair of links (61, 91), and the movement amount adjusting pin (90) is fixed to the fulcrum (88).
4. The work intermittent feed device according to claim 3, wherein the amount of movement of the approximate linear movement pin (44) is variable by moving the pin around the workpiece. 5. A pair of reciprocating members for connecting a drive link (65) rotatable about a fixed fulcrum (66) and the approximate linear movement pin (44) to the drive link (65). Connecting links (61, 63) of the connecting link (61, 63), the connecting pin (62) between the connecting links (61, 63) is slidable along the guide groove, and the guide groove is rotated around the fulcrum (188). The work intermittent feed device according to claim 3, wherein the intermittent linear feed pin (44) is moved to change the movement amount of the approximate linear movement pin (44). 6. A gear is fixed to a link (89) rotatable about the fixed fulcrum (88), and means for rotating the gear is included. The intermittent work feeding device described in 4. 7. An intermittent work, wherein a pair of work gripping members for gripping a transferred work from both sides are supported by fixed support members on both sides of the work, respectively, and the work is gripped by the work gripping member. In the feed device,
At least one of the pair of work holding members is connected to the reciprocating member, and the pair of work holding members is connected to one moving pin (44) by a pair of links (43, 45) having the same length. , The moving pin (44)
The movement amount adjusting pin (90) of the above is supported by a link (89) movable around a fixed fulcrum (88), and the link (89) is supported.
And the moving pin (44) with a pair of links (61, 9).
1) The work intermittent feed device characterized in that the movement amount adjusting pin (90) is moved around the fixed fulcrum (88) so that the movement amount of the moving pin (44) is variable. 8. The work gripping member is a roller member,
The moving pin (44) is supported on one end of an intermediate link (51), and the other end of the intermediate link (51) is connected to a rotary link (53) rotatable about a fixed fulcrum (54). The intermediate position (5) of the intermediate link (51).
The work intermittent feed device according to claim 7, wherein the fixed pin (6) and the fixed pin (58) are connected by a link (57), and the movable pin (44) moves approximately linearly. 9. An intermittent work, wherein a pair of work gripping members for gripping a transferred work from both sides are supported by fixed support members on both sides of the work, and the work is gripped by the work gripping member. In the feed device,
At least one of the pair of work holding members is connected to the reciprocating member, and the pair of holding members is connected to one moving pin (44) by a pair of links (43, 45) having the same length, One end of a connecting link (61) is connected to the moving pin (44), the other end of the connecting link (61) is slidable along a guide groove, and the guide groove is used as a fulcrum (188). A work intermittent feed device characterized by rotating around to make the moving amount of the moving pin (44) variable. 10. The work gripping member is a roller member, the moving pin (44) is supported on one end of an intermediate link (51), and the other end of the intermediate link (51) is a fixed fulcrum (54). Is connected to a rotary link (53) rotatable around the center of the intermediate link (51) and a fixed pin (58) is linked by a link (57). The work intermittent feed device according to claim 9, wherein (44) moves approximately linearly. 11. A drive link (65) in which the reciprocating member is rotatable around a fixed fulcrum (66), cams (69a, 69b) for rotating the drive link, and the drive link (65). The work intermittent feed device according to claim 7, further comprising a connecting link (63) for connecting a connecting pin (62) between the pair of links (61, 91). 12. The reciprocating member comprises a drive link (65) rotatable about a fixed fulcrum (66), cams (69a, 69b) for rotating the drive link (65), and the drive link. The work intermittent feed device according to claim 9, characterized in that it comprises a connecting link (63) for connecting the other end of the connecting link (61) and the connecting link (61). 13. A gear is fixed to a link (89) rotatable about the fixed fulcrum (88), and means for rotating the gear is included. 7
The intermittent work feeding device described.