KR100441772B1 - Structure for united cam of apparatus for manufacturing zipper - Google Patents

Abstract

The present invention relates to a double-acting cam of the zipper manufacturing apparatus, the present invention according to the drive of the rotating shaft 20 installed in the main body housing 2 is formed by a predetermined amount of the vertical wire (W) perpendicular to the direction of movement of the transfer ram (30) The element (E) cut and formed through the cutting blade (40) and the cutting die (41) provided on the upper part of the feed ram (30) horizontally moving the supplied element-molded wire (W) to be intermittently upwardly supplied. After the element (E) is transferred to the forming die (42) and punched with the forming punch (51) to form the engaging convex (93) on the occlusal head (91) of the element (E), the element In the zipper manufacturing apparatus configured to continuously and repeatedly attach (E) to the cloth tape (T) to be supplied vertically at a uniform interval with the side hammer (61), the transfer ram (30) This can be done by having a stop section without play in a certain position during backward movement. Double acting cam 21 which rotates while contacting between two first and second rollers 31 and 32 provided at predetermined intervals at the lower end of the transfer ram 30 so that the forming punch 51 can be punched at the moment. ) Is installed on the rotation shaft 20, the double-acting cam 21 has the same shape and has the same rotation diagram, the first cam portion 21a and the second cam portion 21b, and the first cam portion 21a And a third cam portion 21c having the same shape as the shape of the first cam portion 21a and the second cam portion 21b while being positioned between the second cam portion 21b, but having a rotation diagram in the opposite direction. Formed.

Description

Double acting cam operating structure of zipper manufacturing device {STRUCTURE FOR UNITED CAM OF APPARATUS FOR MANUFACTURING ZIPPER}

The present invention relates to a double-acting cam of the zipper manufacturing apparatus, in particular, to operate to have a stop section without play at a certain position during the forward and backward movement of the transfer ram using a concentric double-acting cam provided on the rotating shaft of the double-acting cam 1, the second roller to be in rear contact with the second cam portion and the first roller to be in front contact with the third cam portion of the double-acting cam integrally formed in the transfer ram to move the conveying ram horizontally and the element attachment process; The double-acting cam operating structure of the zipper manufacturing apparatus which performs all the element cutting processes to the transfer ram and forms a lubricating oil supply passage in the transfer ram to prevent friction of the transfer ram so as to perform the operation of the transfer ram simply and conveniently. will be.

The zipper manufacturing apparatus shown in FIG. 1 is vertically supplied after punching to form an element (E) cut and formed by receiving an element-shaped wire W having an Y-shaped cross section intermittently upwardly by a predetermined amount. Apparatus for making a continuous attachment to the cloth tape (T) to be firmly attached without twisting at uniform intervals, the zipper manufacturing apparatus has a rectangular parallelepiped support base (1) the appearance is fixed to the ground and the The support base 1 is formed of a main body housing 2 which is fastened and coupled with a plurality of screws through a support plate 3 on an upper surface thereof.

At this time, the zipper manufacturing apparatus is configured so that the transfer ram 30 disposed in the main body housing 2 can be slid in the horizontal direction by the cam mechanism.

That is, the main body housing (2) is coupled to the upper surface of the support base (1) fixed to the ground, and the cam is installed in the center of the shaft to receive and rotate the power of the motor (10) installed in the inner space of the support base (1) The first and second rollers 31 are disposed in front and rear of the cam so that the rotating shaft 20 is installed across the inner side of the main body housing 2 and driven by the cam on the rotating shaft 20 to reciprocate linearly in the horizontal direction. The transfer ram 30 with 32 is assembled to the central portion of the main body housing 2.

The ratchet 28 is driven and rotated by the slider 25 connected to the drive cam 75 provided at one side of the rotation shaft 20, and the element forming wire W is intermittently upwardly fed by a predetermined amount so as to be intermittently upwardly fed. A coaxial 73 and a plurality of mutually engaged gears are provided in the case 71 at the lower side of one side of the main body housing 2, and the element molded wire W is predetermined above the front portion of the transfer ram 30. Cutting die 41 with a cutting blade 40 for cutting the pitch to form the element (E), and a feed groove 43 for supplying the element forming wire (W) perpendicular to the direction of movement of the feed ram (30). ) And forming dies 42 in which elements E are conveyed and placed are provided in series.

Interlocked by the operation of the operation cam 23 provided on the interlocking shaft 22 connected to the rotation shaft 20 via the time belt 24, the downward direction (vertical direction) at the moment of stopping the transfer ram 30 The forming punch 51 and the pressing pad 52 are perpendicular to the upper side of the main housing 2 so that punching is performed while pressing the element E placed on the forming die 42 while reciprocating linearly. And the two bite bite 92 of the element (E) having the engaging recesses (93) formed in the forming die (42) by pressing against the plane of the cloth tape (T) held by the fixing clamp (63). The side hammer 61 guided by the side guide 62 is fixedly installed in front of the transfer ram 30.

The ratchet 88 is driven by the slider 85 provided at the other end of the rotating shaft 20 while the cloth tape T to which the element E is attached is wound and discharged so as to be discharged. The sprocket wheel 83 which is engaged with the ratchet 88 in the installation frame 81 fixed to the assembly is connected to the feeding gear 84 by the connecting shaft 82.

Referring to the operation process of the zipper manufacturing apparatus configured as described above are as follows.

The driving power is transmitted by the rotary shaft 20 is rotated by receiving the power of the motor 10 provided in the inner space of the support base 1, and the double-acting cam 21 assembled in the center of the rotary shaft 20 A transfer step in which the transfer ram 30 provided in the inner central portion of the main body housing 2 is driven by the double acting cam 21 of the rotary shaft 20 to reciprocate linearly in a horizontal direction, and the main housing ( 2) an element formed wire rod having a Y-shaped cross section while being driven by a ratchet 28 driven by a slider 25 connected to one side of the rotation shaft 20 and a plurality of mutually engaged gears installed at one lower side of the drive shaft 72; (W) the element forming wires supplied in the supply process by the supply process for intermittently upwardly feeding a predetermined amount, and the cutting blade 40 and the cutting die 41 respectively installed in series on the front surface of the transfer ram ( Cut W) to a predetermined pitch to form an element (E). Next, a cutting step of moving the element E to the front punching point (molding die 42), a punching holder 50 vertically installed above the main body housing 2, and the punching holder 50. A pressing pad 52 and a molding punch 51 installed on the linking shaft 22 connected to the rotary shaft 20 via a time belt 24 are installed to reciprocally move downward in the vertical direction. Punching by interlocking with the operation of the operation cam 23 and pressing while pressing the element E placed on the forming die 42 while reciprocating linearly downward (vertical direction) at the moment of stopping the transfer ram 30. Punching when the transfer ram 30 advances by a step, a side guide 62 fixed to the front of the transfer ram 30, and a side hammer 61 provided to guide the side guide 62; A cloth tape (both occlusal recesses 92 of the element E on which the interlocking protrusions and depressions 93 were formed by the process) was used. A pressing process for attaching the element (E) to the cloth tape (T) by pressing substantially perpendicularly to the plane of T), and feeding provided in the installation frame (81) assembled and fixed to one side of the upper end of the main housing (2). Feeding for winding the cloth tape (T) attached to the element (E) by the tooth pressing process while the gear 84 is driven by the ratchet 88 by the slider 85 provided on the other end of the rotary shaft 20 A zipper manufacturing process is carried out by a process. In the prior art, there is a patent disclosed in Japanese Patent Application Laid-Open No. H6-23455 in an apparatus that strikes the occlusal portion of the element E using a hammer means. A roller in contact with the cam and a lever in which the roller is fixed at one end and extended downward, and at the same time the central part is condensed on the mount; The other end of the lever consists of a link in which the center part is condensed, a third ram condensing the front end of the link, and an actuating lever temporarily fixed and installed on the upper part of the hammer and condensed in the center part. As a configuration that is returned by the elastic force of the spring installed on the back of the, the operation structure of the hammer striking the occlusal head 91 of the element (E) is very complicated and difficult to manufacture. The cam termination mechanism of the first ram includes a roller in contact with the first ram driving cam, which is condensed on the rear part of the first ram, in the forward direction by the compression spring, and if the cam is rotated, the first ram is predetermined. The inverted operation structure is configured so that the wire rod protruding from the cutting die fixed to the first ram while being retracted at the front end position of the first ram is cut back into a caulking punch to form a separate element (E). Apart from the hammer actuation structure, the configuration has a complex disadvantage.

Accordingly, the present invention has been made in view of the above, the first of the double-acting cam to operate to have a stop section without play at a certain position during the forward and backward movement of the transfer ram using a concentric double-acting cam provided on the rotation axis The element attachment process and the element are formed by horizontally moving the transfer ram horizontally by forming a second roller in rear contact with the second cam and a first roller in front contact with the third cam of the double acting cam integrally with the transfer ram. Providing a double-acting cam operating structure of the zipper manufacturing apparatus that proceeds all the cutting process to the transfer ram, to form a lubricating oil supply passage in the transfer ram to prevent friction of the transfer ram to simply and conveniently perform the operation of the transfer ram There is.

1 is a perspective view showing a zipper manufacturing apparatus applied to a double-acting cam according to the present invention.

Figure 2 is a right side view of the zipper manufacturing apparatus applied double-acting cam according to the present invention.

Figure 3 is a left side view of the zipper manufacturing apparatus applied double-acting cam according to the present invention.

4 is a perspective view of a double-acting cam according to the present invention.

5 is a view illustrating a state in which a double-acting cam is assembled to a transfer ram of a zipper manufacturing apparatus to which a double-acting cam is applied according to the present invention, (A) is a rear view, (B) is a side view, and (C) is a front view.

6 (A), (B), (C) is a cross-sectional view showing a coupling state of the first and second rollers provided in the double-acting cam and the transfer ram according to the present invention.

7 is a rotation diagram of a double-acting cam according to the present invention.

8 (A) is a perspective view of an element formed wire rod having a Y-shaped cross section.

(B) is a perspective view which shows the element before punching molding.

(C) is a perspective view which shows the element after punching molding.

Detailed description of the main parts of the drawings

One ; Support base 2; Body Housing

10; Motor 20; Axis of rotation

21; Double acting cam 21a; First cam part

21b; Second cam portion 21c; Third Cam

30; Feed ram 31,32; 1st, 2nd roller

40; Cutting blade 41; Cutting die

42; Molding die 50; Punching Holder

51; Molding punch 52; Push pad

61; Side hammer 62; Side guide

63; Clamp tong 71; case

72; Drive shaft 73; Driven shaft

80; Feeding section 81; Installation frame

82; Connecting shaft 84; Feeding Gear

91; Occlusal head 92; Occlusion

93; Interlocking irregularities T; Cloth tape

E; Element W; Element molded wire rod

The double-acting cam of the present invention zipper manufacturing apparatus made to achieve the above object, the element forming wire is intermittently upwardly supplied by a predetermined amount perpendicular to the moving direction of the transfer ram in accordance with the drive of the rotary shaft installed in the main body housing, An element formed by cutting through a cutting blade and a cutting die is formed on an upper portion of a transfer ram for horizontally moving an element formed wire, and the element is transferred to a forming die and punched with a forming punch to engage the element occlusal head. In the zipper manufacturing apparatus configured to continuously perform the operation of attaching the element at a uniform interval with a side hammer to the cloth tape supplied vertically after forming a, the transfer ram is a constant position during the forward and backward movement In this case, the forming punch can be punched. A double-acting cam that rotates while contacting between two first and second rollers provided at predetermined intervals at the lower end of the transfer ram is installed on the rotating shaft, and the double-acting cam has the same shape and has the same rotational lead. The first cam portion and the second cam portion, and the third cam portion having the same shape as the shape of the first cam portion and the second cam portion and positioned between the first cam portion and the second cam portion, but the rotation diagram has the rotation diagram in the opposite direction. Characterized in that formed.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail, referring an accompanying drawing.

1 is a perspective view showing a zipper manufacturing apparatus applied to the double-acting cam according to the present invention, the zipper manufacturing apparatus is a rectangular parallelepiped support base (1) the outer surface is fixed to the ground, the support base (1) on the upper surface It is formed of a main body housing (2) is tightened by a plurality of screws through the support plate (3).

The rotating shaft 20 is rotated across the main body housing 2 to receive the power of the motor 10 provided in the inner space of the support base (l), the rotating shaft 20 in the center of the rotating shaft 20 The double-acting cam 21 which transmits a driving force while rotating together at the time of rotation) is installed.

And, the inner side of the main body housing (2) is arranged with a transfer ram 30 to move the reciprocating sliding horizontally, the transfer ram (30) so that the reciprocating sliding movement by the double acting cam (21). Consists of.

At this time, as shown in Figures 4 to 6, the double-acting cam 21 has a stop punch without any play at a certain position during the forward and backward movements, so that the forming punch to be described later in this moment It is installed on the rotating shaft 20 which rotates while contacting between two first and second rollers 31 and 32 provided with a predetermined interval at the lower end of the transfer ram 30 so that 51 can punch. The double acting cam 21 has the same shape and has the same rotational line between the first cam portion 21a and the second cam portion 21b, and between the first cam portion 21a and the second cam portion 21b. The third cam portion 21c having the same shape as that of the first cam portion 21a and the second cam portion 21b but having the rotational diagram in the opposite direction while being positioned is integrally formed.

In addition, the first cam portion 21a and the second cam portion 21b of the double acting cam 21 come into contact with the second roller 32 located behind the double acting cam 21 and the first cam portion 21a and the second cam portion 21b. When the rotational distance of the cam portion 21b is lengthened based on the center of the rotation shaft 20, the second ram 32 is pushed so that the transfer ram 30 moves backward, and the third cam portion 21c of the double acting cam 21 is moved. ) Is in contact with the first roller 31 in front of the double-acting cam 21, when the rotation distance of the third cam portion 21c is long relative to the center of the rotation shaft 20, so that the transfer ram 30 is moved forward When the rotational distances of the first cam portion 21a, the second cam portion 21b, and the third cam portion 21c are the same with respect to the center of the rotation shaft 20, the feed ram 30 has a stop section. have.

That is, the transfer ram 30 is provided with two first and second rollers 31 and 32 which are in contact with each other on the rotation diagram of the double acting cam 21 with the double acting cam 21 interposed therebetween. As the 21 is rotated, the transfer ram 30 slides forward and backward as it repeatedly contacts between two first and second rollers 31 and 32.

In addition, the transfer ram 30 is provided with a lubricating oil supply passage 33 through which lubricating oil is supplied so as to smoothly move forward and backward on the upper end surface of the main body housing 2.

In addition, the cutting blade 40 and the cutting die 41 are assembled on the end face side of the transfer ram 30, and the forming die 42 is arranged in series in front of the cutting die 41.

At this time, the cutting die 41 is formed with a feed groove 43 through which the element-molded wire W having a Y-shaped cross section can be protruded upward, and the cross-section of the feed groove 43 is an element-shaped wire rod. It is provided according to the cross-sectional size of (W).

The forming die 42 is a molding punch 51 to be described later on the occlusal head 91 of the element (E) after the element (E) formed by cutting from the cutting die 41 is moved and seated by the cutting blade 41 The shape of the element E is the same as that of the element E so as to form the engagement concave-convex 93 by punching.

In addition, the forming punch 51 is a punching mechanism for forming the concave-convex 93 to engage with the occlusal head 91 of the element (E), the forming punch 51 is assembled perpendicular to the upper end surface of the main body housing (2). It is assembled to slide in the vertical direction to the fixed punching holder 50. When the forming punch 51 punches the element E, the element E swings on the front surface of the forming punch 51. The pressing pads 52, which are fitted to the occlusal recesses 92 of the elements E and fix the elements E, are assembled to slide together with the forming punch 51.

That is, the cutting blade 40, the cutting die 41, and the forming die 42 are arranged in series on one plane, and the forming punch 5l and the pressing pad 52 are the transfer ram 30. ) And installed vertically to move relative to each other.

At this time, the forming punch 51 and the pressing pad 52 is configured to be driven by the operating cam 23 is connected to the interlocking shaft 22 connected to the rotation shaft 20 via the time belt 24. .

That is, when the rotating shaft 20 is rotated, the interlocking shaft 22 connected to the rotating shaft 20 via the time belt 24 is rotated, and the operation cam assembled on the interlocking shaft 22 ( 23 is rotated to press the upper end of the forming punch 51, the punch forming punch 51 to the occlusal head 91 of the element (E) placed on the forming die 42 while the forming punch 51 moves in the downward direction. It is added to form the engaging convex (93) to the occlusal head 91 of the element (E).

On the other hand, the lower portion of the cutting die 41 is provided with a supply part 70 for intermittently upwardly supplying the element molded wire (W), the supply part 70 is a plurality of gears meshing while rotating the element forming wire (W) ) Is installed in the case 71 which can be disassembled and assembled at the lower end of the front side of the main body housing 2 so as to intermittently feed upwards a predetermined amount (to the cutting die 41 side), and the drive shaft protruding out of the case 7 ( A sprocket wheel 74 is provided at the end of the wheel 72, and a gear is provided on the inner drive shaft 72 of the sprocket wheel 74 so that a plurality of other gears meshing with the gear are connected to the upper and lower two driven shafts 73. ) Is provided as a medium.

That is, as the gears interlock with each other, the element forming wire W is pushed toward the cutting die 41 intermittently by a predetermined amount between the driven shafts 73, and the front surface of the case 71 has the driven shaft ( 73 is provided with a control lever 76 for controlling the degree of adhesion of the element-molded wire (W) inserted between.

Meanwhile, the sprocket wheel 74 is driven by a slider 25 having a ratchet 28 at one end of the rotation shaft 20, and the slider 25 is a rectangular parallelepiped case and reciprocates inward. A slider bar 26 is provided, and a roller 27 is provided at one end of the slider bar 26 so as to be driven in cooperation with a drive cam 29 provided on the rotation shaft 20. The ratchet 28 integrally provided in the bar 26 is rotated by pushing the sprocket wheel 74 one by one.

In addition, an element (E) in which an unevenness (93) is formed at the front end of one side of the main housing (2), that is, in front of the forming die (42), is operated when the transfer ram (30) is retracted and engaged by the forming punch (51). The side hammer 61 which compresses the occlusal recesses 92 of both sides and attaches to the cloth tape T is provided.

At this time, the side hammer 61 is symmetrically assembled so as to be guided and pressed by the side guide 62 to the bite portion 92 of the element (E) accurately.

In addition, the side hammer 61 is assembled in two upper and lower pairs so as to press the occlusal recess 92 of the element E more efficiently, thereby intersecting the occlusal recess 92 of the element E mutually. It can be configured to be pressurized.

In addition, the feed section for driving the ratchet 88 by the slider 85 provided at the other end of the rotary shaft 20 in the upward direction of the supply unit 70 to wind the cloth tape (T) attached with the element (E) Bar 80 is provided, the feeding portion 80 is provided with a mounting frame 81 is provided on one side of the upper end of the main body housing 2, the connecting shaft 82 on the left and right sides of the mounting frame 81 The sprocket wheel 83 and the feeding gear 84 are installed to be interlocked with each other.

At this time, the slider 85 is a rectangular parallelepiped case and includes a slider bar 86 for reciprocating inward, and a roller 87 is provided at one end of the slider bar 86 to the rotating shaft 20. The driving cam 89 is provided to be driven in cooperation with each other, and the ratchet 88 integrally provided at the slider bar 86 is pushed by the sprocket wheel 83 one by one to rotate.

Then, the cloth tape (T) is supplied from the side of the main body housing (2) is fed and discharged vertically by being clamped by the fixing tongs 63 fixedly fixed to the front end of the main body housing (2).

That is, the cloth tape (T) is supplied through the side supply hole (64) of the main body housing (2) is bitten by the fixing clip 63 from the side hammer 61 side to form a vertical plane again the feeding part 80 Extends to the feeding gear 84, and the feeding tape 84 is rotated so that the cloth tape T is rolled up and discharged.

Referring to the operation of the zipper manufacturing apparatus according to the double-acting cam rotation of the zipper manufacturing apparatus in more detail as follows.

When power is generated in the motor 10 and transmitted to the rotating shaft 20, the transfer ram 30 is interlocked with the driving of the double-acting cam 21 according to the rotation of the rotating shaft 20.

At this time, when the third cam portion 21c of the double-acting cam 21 is pushed in contact with the first roller 31 in front (FIG. 6C), the initial movement starting point of the feed ram 30 is the cam rotation diagram. 45 ° point), while the transfer ram 30 moves forward and the interlocking shaft 22 connected to the rotation shaft 20 by the time belt 24 rotates, the punch is assembled and fixed perpendicularly to the main housing 2. The forming punch 51 and the pressing pad 52 provided in the holder 50 are raised.

On the other hand, the drive cam 72 provided at one end of the rotating shaft 20 is rotated while the transfer ram 30 is moved to push the roller 27 of the slider bar 26, thus the slider 27 Is driven, the sprocket wheel 74 of the supply unit 70, the drive shaft 72 and the gears provided on the driven shaft 73 to rotate together with the sprocket wheel 74 rotates the driven shaft 73 The element-molded wire W having a Y-shaped cross section in close contact therebetween is intermittently supplied upward (by a supply groove 43 of the cutting die 41).

When the transfer ram 30 is advanced to the final moving point (double-acting cam is located at 270 ° from the reference point), the forming punch 51 and the pressing pad 52 is stopped to rise the transfer ram 30 The side guide 62 installed at the front of the transfer ram 30 is pushed forward by the transfer ram 30 until the transfer ram 30 moves forward to the end, and the side hammer 61 is advanced to move the element E into the cloth tape ( It is pressed to attach to T. (At this time, since there is no element E cut and formed from the element-forming wire W in the initial process cycle, the side hammer 61 has an element E in the cloth tape T. ) Can not be pressurized to attach only forward movement.)

The transfer ram 30 continuously moves forward to the final moving point to transfer the element E having the engagement irregularities 93 to the attachment surface of the cloth tape T, and then the transfer ram 30 is a double-acting cam. The reverse of the rotation of (21).

Thereafter, the first cam portion 21a and the second cam portion 21b of the double acting cam 21 come into contact with the second roller 32 located at the rear of the double acting cam 21 (FIG. 6A). When the rotation distance of the first cam portion 21a and the second cam portion 21b is extended with respect to the center of the rotation shaft 20 and the transfer ram 30 moves back a predetermined section, the upper side of the transfer ram 30 The cutting blade 40 fixedly attached to the main body housing 2 is supplied to the supply groove 43 of the cutting die 41 to define the element molded wire W protruding from the upper surface of the transfer ram 30. By cutting the pitch to form the element (E), the cutting element (E) is cut by the cutting blade 40 is moved to the forming die 42 by the cutting blade (40).

When the element E is placed on the forming die 42, the first cam portion 21a and the second cam portion of the double acting cam 21 while the transfer ram 30 moves for a predetermined time by the action of the double acting cam 21. The rotational distances of the 21b and the third cam portion 21c are the same with respect to the center of the rotation shaft 20 (in the embodiment, the double-acting cam is between 45 ° and 135 °) and the feed ram 30 moves for a predetermined time. Is stopped, and at this moment, the upper end of the forming punch 51 is pressed by the operation of the operation cam 23 provided on the linking shaft 22 connected to the rotation shaft 20 via the time belt 24. As the punch 51 and the pressing pad 52 fall downward, punching is performed to form the engagement recesses 93 on the occlusal head 91 of the element E placed on the forming die 42.

At this time, the pressing pad 52 is fitted to the occlusal recess 92 of the element E when punching the occlusal head 91 of the element E with the forming punch 51 to remove the element E and the swing thereof. As well as preventing, the forming punch 51 serves as a stripper that prevents the element E from coming up when it rises.

On the other hand, the sprocket wheel 83 of the feeding section 80 is rotated by driving the ratchet 88 of the slider 85 provided at the other end of the rotary shaft 20 while the feed ram 30 is reversed, the element ( The cloth tape T is fed up and discharged while being fed by the feeding gear 84 so that E) can be sequentially attached to the cloth tape T.

That is, the double-acting cam of the zipper manufacturing apparatus according to the present invention as described above is a stop formed by the conveying ram 30 in which the element E cut and molded from the element-forming wire (W) is moved by the double-acting cam 21. The forming punch 51 vertically fixed to the main body housing 2 falls within the section so as to form an engaging convex and concave convexity 93 on the element E by punching while dropping. E is pressurized by the side hammer 61 at the attachment surface of the cloth tape T when the transfer ram 31 is advanced, and the cloth tape T to which the element E is attached is supplied to the feeding portion ( 80 is discharged by the feeding gear 84 of the operation to produce a zipper, this operation is repeated continuously at a high speed.

According to the double-acting cam operating structure of the zipper manufacturing apparatus according to the present invention as described above, the double-acting to operate to have a stop section at a certain position during the forward and backward movement of the transfer ram using a concentric double-acting cam provided on the rotating shaft The second roller which is in rear contact with the first and second cam portions of the cam and the first roller which is in front contact with the third cam portion of the double acting cam are integrally formed on the transfer ram so that the transfer ram is moved forward and backward horizontally. It is a very useful and effective invention to carry out both the attachment process and the element cutting process to the transfer ram, and to form a lubricating oil supply passage in the transfer ram to prevent friction of the transfer ram to perform the operation of the transfer ram simply and conveniently.

Claims (2)

delete The first cam portion 21a and the second cam portion 21b of the double acting cam 21 are in contact with the second roller 32 located behind the double acting cam 21 and the first cam portion 21a and the second cam portion. When the rotational distance of the 21b is longer with respect to the center of the rotational shaft 20, the second roller 32 is pushed so that the transfer ram 30 moves backward, and the third cam portion of the double acting cam 21 ( 21c is in contact with the first roller 31 in front of the double-acting cam 21, when the rotation distance of the third cam portion 21c is long relative to the center of the rotation shaft 20, the transfer ram 30 is moved forward When the rotation distances of the first cam portion 21a, the second cam portion 21b, and the third cam portion 21c are the same with respect to the center of the rotation shaft 20, the feed ram 30 has a stop section. In the double-acting cam of the zipper manufacturing apparatus configured, The first roller 32 is in contact with the first cam portion 21a and the second cam portion 21b of the double acting cam 21 and the first roller is in contact with the third cam portion 21 of the double acting cam 21. 31 is integrally formed on the transfer ram 30 to horizontally move the transfer ram 30 forwards and backwards to perform both an element E attachment process and an element E cutting process. 30, the double-acting cam operating structure of the zipper manufacturing apparatus, characterized in that the oil groove 33 is provided in the transfer ram 30 to prevent friction during the horizontal transfer.