TWI733437B - Feed cam stop of punching machine - Google Patents

Abstract

A feed cam stopper of a punching machine. The punching machine is connected with shafts on both sides above an upper knife seat. A camshaft, on both sides of the camshaft are respectively sleeved an infeed cam with a bearing inside, a stopper assembly is provided below the infeed cams and on both sides corresponding to the upper part of the upper tool seat, the stoppers Each of the block components includes two limit blocks respectively fixed on the two sides above the upper tool seat and for the infeed cams to abut, and two respectively fixed below the longest distance from the center of the infeed cams For the two outer bumps, a distance is formed between the bumps for the limit blocks to be inserted; with the block components, when the camshaft is driven up and down at high speeds, the camshafts on both sides will not be caused to work up and down. The knife feed cam rotates and restricts the bearings in the knife feed cams from being worn at the same position, so that the finished metal thin net product punched by the punching machine can stabilize its production quality.

Description

Feed cam stop of punching machine

A type of stopper, especially one that does not cause the feed cams on both sides to rotate when the camshaft drives up and down at high speeds, and restricts the bearings in the feed cams on both sides from being worn at the same position, so that the punching machine The punching cam stopper of the punching machine that can stabilize the quality of the finished metal thin net produced by punching.

Please refer to Figures 1 and 2, generally a punching machine 1 for punching a thin metal mesh 10. The punching machine 1 includes a bottom knife base 11, an upper knife base 12, and an upper knife base. The camshafts 13 above 12 and axially connected to the two inner sides of the punching machine 1 and two feed cams 14 respectively shafted at the two ends of the camshaft 13 have a bearing 141 inside each of the feed cams 14. When the punching machine 1 is in the high-speed process of punching the thin metal mesh 10, when the camshaft 13 drives up and down, the feed cams 14 on both sides of the camshaft 13 will rotate. If the infeed cams 14 rotate, the infeed cams 14 will run for a long time, and sometimes the places where the bearings 141 are not worn will be stamped, and sometimes at the places where the bearings 141 are worn during stamping. , This will cause the upper tool holder 12 to be pressed down easily to produce a left and right offset state, which makes it difficult to control the punching range of the feed cams 14 at the longest distance 142 from the center of the feed cams 14, resulting in The upper tool 121 of the upper tool holder 12 has different depths of downward punching action. It is easy for the punched metal thin mesh 10 to have different meshes 100 and 101. The forming size has many errors, which makes the punching process The quality of the finished metal thin mesh 10 is not good.

As a result, the applicant made derivative research and development, combined with years of experience in related businesses, and proposed a feed cam stopper for the punching machine to overcome the existing shortcomings in view of the above problems.

The purpose of the present invention is to provide a feed cam stopper for a punching machine, that is, to improve the instability of the rotation of the existing feed cams, so as to make the punched metal thin mesh products appear with different meshes. There are many errors and other missing dimensions. The invention provides a stopper assembly to limit the rotation of the feed cam, which can be controlled to work at the same wear point, so that the finished product of the thin metal mesh can be grasped with different mesh sizes, so that the punching mesh The finished product of the machine-punched metal thin mesh can stabilize its production quality.

According to the above objective, the present invention proposes a knife feed cam stopper for a punching machine. The punching machine is pivotally connected to a camshaft on both sides above an upper knife seat, and an inner part is sleeved on both sides of the camshaft. Feed cam with one bearing. Wherein, the lower part of the feed cams and the two sides corresponding to the upper part of the upper tool seat are respectively provided with a stopper assembly, and the stopper assemblies respectively include two two sides respectively fixed on the upper side of the upper knife seat and supply the The limit blocks against which the feed cams abut, and two outer bumps respectively fixed at the two outer sides below the longest distance from the center of the feed cams, the limit blocks respectively include a placement area and two The two sides of the placement areas respectively protrude upwardly with stoppers, and a distance for the stop blocks is formed between the stoppers to limit the rotation of the feed cams from the distance between the stoppers. These feed the cam center within the longest distance of the punching range.

Furthermore, a plurality of first fixing holes are respectively provided on both sides above the upper tool seat, and the first fixing holes are screw holes and are respectively provided with four corresponding to each other, so that the plurality of first fixing members can be fixed on the first fixing hole. The first fixing holes; wherein, the two outer sides below the feed cams are respectively provided with a plurality of second fixing holes, the second fixing holes are screw holes and are respectively provided with four corresponding to each other, for a plurality of The second fixing member is fixed in the second fixing holes.

Furthermore, each of the blocking bodies is provided with a plurality of blocks opposite to the first fixing holes of the upper tool seat. The first countersunk and buried holes should be matched for the first fixing parts to penetrate into the first countersunk holes and be fixed in the first fixing holes respectively, so that the limit blocks and the upper knife Positioning of the combined state of the two sides above the seat.

Furthermore, the first fixing parts are screws.

Furthermore, the shapes of the protrusions are arranged as arc-shaped bodies to match the arcs on the lower two outer sides of the feeding cams, and the protrusions are respectively provided with a plurality of and the first portions of the feeding cams. The second countersunk holes corresponding to the two fixing holes are used for the second fixing parts to penetrate into the second countersunk holes and be fixed in the second fixing holes respectively, so that the bumps are connected to the second fixing holes respectively. Positioning of the combined state of these feed cams.

Furthermore, the second fixing parts are screws.

The present invention can achieve the following advantages through the above-mentioned technology: the present invention utilizes the stopper assemblies which are respectively fixed on both sides of the upper tool holder and the feed cams, and the limit blocks and the respective stoppers The protrusions are limited on both sides of the limit blocks to limit the rotation of the feed cams, so that they can be controlled to work at the same wear point, so that the mesh of the finished metal mesh can be grasped. The size can reach the uniform shape, will not cause the punched metal thin net products to show different mesh size errors, and can achieve the consistent processing flow, so the quality of the punched processed products of the punching machine is very good .

(existing)

1: Net punching machine

10: Thin metal mesh

100, 101: Mesh

11: bottom knife seat

12: Upper knife seat

121: upper tool

13: Camshaft

14: feed cam

141: Bearing

142: longest distance

(this invention)

2: Net punching machine

3: thin metal mesh

30: Mesh

4: Upper knife seat

41: Upper tool

42: The first fixing hole

5: Camshaft

6: Feed cam

60: Bearing

61: longest distance

62: shortest distance

63: second fixing hole

7: Stopper assembly

71: limit block

711: placement area

712: body

713: The first sinking hole

714: first fixing

72: convex block

721: second sinking and buried hole

722: second fixing

73: distance

8: bottom knife seat

81: Lower tool

Figure 1: A three-dimensional schematic diagram of the configuration of the feed cam of the existing punching machine for punching the thin metal mesh.

Figure 2: It is a schematic diagram of the feed cam of the punching machine in Figure 1 that has left and right deviations due to the distance of rotation.

Figure 3 is a three-dimensional exploded view of the feed cam stopper of the punching machine of the present invention.

Figure 4: is a perspective exploded view of another angle of the feed cam stopper of the punching machine of the present invention.

Figure 5: is a three-dimensional schematic diagram of the feed cam of Figure 3 when punching the thin metal mesh.

Figure 6-1: It is a partial cross-sectional view and a schematic diagram of the action of the feed cam of Figure 3 when the rotating travel distance is not limited by the stopper assembly.

Figure 6-2: It is a partial cross-sectional view of the feed cam of Figure 6-1 where the rotational travel distance is limited by the stopper assembly.

Figure 7: It is a schematic side view of the configuration of the feed cam of Figure 3 on the punched metal thin mesh and stopper assembly.

In conjunction with the accompanying drawings, we will explain in detail how the structure of the present invention is combined and used, and it should be easier to understand the purpose, technical content, characteristics and effects of the present invention.

Please refer to Figures 3 and 4, and in conjunction with Figures 5 to 7, the present invention proposes a feed cam stopper of a punching machine, which is used to grasp the thin metal mesh punched by the punching machine 2 3The size of the mesh 30 of the finished product can reach an even shape, which can more stabilize the quality of the finished metal thin mesh 3. The punching machine 2 is respectively connected with a camshaft 5 on both sides above an upper knife holder 4, and a feeding cam 6 with a bearing 60 inside is sleeved on both sides of the camshaft 5, and the feeding cams 6 are respectively provided with a bearing 60 inside. A stopper assembly 7 is respectively provided below the cam 6 and on both sides corresponding to the upper side of the upper tool holder 4. Wherein, the upper knife holder 4 is arranged above a bottom knife holder 8 at intervals, and the upper knife holder 4 is provided with an upper knife 41 facing below the side corresponding to the bottom knife holder 8. Wherein, the upper two sides of the upper tool holder 4 are respectively provided with a plurality of first fixing holes 42. In the embodiment of the present invention, the first fixing holes 42 are screw holes and are respectively provided with four corresponding to each other.

The two sides of the camshaft 5 are respectively pivotally connected to the two sides of the machine table of the punching machine 2 and arranged above the upper knife holder 4.

The feed cams 6 are respectively axially connected to both sides of the camshaft 5, and the feed cams 6 are respectively provided with The punching range is the longest distance 61 from the center of the feed cams 6 and the shortest distance 62 from the center of the feed cams 6 (as shown in Fig. 6-2). Wherein, the two outer sides below the feed cams 6 are respectively provided with a plurality of second fixing holes 63. In this embodiment, the second fixing holes 63 are screw holes and are respectively provided with four corresponding to each other.

The stopper assemblies 7 respectively include two stoppers 71 respectively fixed on both sides above the upper tool holder 4 and for the feed cams 6 to abut against, and two stoppers 71 respectively fixed at a distance from the feed cams 6 There are two outer bumps 72 below the longest distance 61 of the center of the knife cam 6, and the bumps 72 respectively form a distance 73 for the positioning of the limit blocks 71 (as shown in Fig. 6-1 and Fig. 6). -2 shown in the picture). The limit blocks 71 respectively include a placement area 711 and two blocking bodies 712 respectively protruding upward from both sides of the placement areas 711, and the blocking bodies 712 are respectively provided with a plurality of and the upper The first fixing holes 42 of the tool holder 4 correspond to the first countersunk holes 713, so that a plurality of first fixing members 714 can penetrate the first countersunk holes 713 and be fixed in the first countersunk holes 713 respectively. In the fixing hole 42, the limit blocks 71 are respectively positioned in the combined state of the upper two sides of the upper tool holder 4. In the embodiment of the present invention, the first fixing members 714 are screws. The shapes of the protrusions 72 are set to be arc-shaped bodies to match the arcs on the lower two outer sides of the feeding cams 6, and the protrusions 72 are respectively provided with a large number of parts corresponding to the feeding cams 6 on the periphery. The second fixing holes 63 correspond to the second countersunk and buried holes 721, so that a plurality of second fixing members 722 respectively penetrate the second countersunk holes 721 and are respectively fixed in the second fixing holes 63 , So that the protrusions 72 are positioned in the combined state of the feed cams 6 respectively. In this embodiment, the second fixing members 722 are screws.

Please refer to Fig. 5 to Fig. 6-2 again, and in conjunction with Fig. 7, it can be clearly seen from the figure that when the upper tool 41 of the upper tool holder 4 is affected by the feed cams 6 When the camshaft 5 rotates and moves and presses down on the upper tool holder 4, the stopper assemblies 7 are used to drive the camshaft 5 to work up and down at high speeds, so that the camshafts 5 are respectively fixed on the feed tools. The protrusions 72 on the lower two outer sides of the cam 6 are downward together, and the distances 73 between the protrusions 72 are fixed on the upper two sides of the upper tool holder 4, respectively. Limit The block 71 is inserted to limit the rotation of the feed cams 6 within the punching range of the longest distance 61 from the center of the feed cams 6 so as not to cause the feed cams 6 on both sides of the camshaft 5 Rotate and restrict the bearings 60 inside the feed cams 6 on both sides of the camshaft 5 from being worn at the same position, so that the upper tool 41 of the upper tool holder 4 is about to face the lower tool 81 of the bottom tool holder 8 The depth of the punching metal mesh 3 is more consistent, and the meshes 30 of the thin metal mesh 3 punched by the punching machine 2 can reach an even shape, which will not cause the punched metal thin mesh 3 to have a finished product. Presents the error of different mesh sizes, so as to improve the quality of the finished metal thin mesh 3 by punching, and achieve a consistent processing flow, so as to improve the instability of the rotation of the existing feed cams 14 The finished product of the punched thin metal mesh 10 exhibits different meshes 100 and 101. There are many errors in the molding size, which makes the quality of the punched thin metal mesh 10 poor.

However, the foregoing are only preferred embodiments of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement them accordingly, and are not used to limit the scope of implementation of the present invention; Equal changes or modifications of the shapes, structures and features described should all be included in the scope of the patent application of the present invention.

4: Upper knife seat

41: Upper tool

42: The first fixing hole

5: Camshaft

6: Feed cam

60: Bearing

63: second fixing hole

7: Stopper assembly

71: limit block

711: placement area

712: body

713: The first sinking hole

714: first fixing

72: convex block

721: second sinking and buried hole

722: second fixing

Claims (6)

A knife feed cam stopper of a punching machine, the punching machine is connected with a camshaft on both sides above an upper knife seat respectively, and both sides of the camshaft are respectively sleeved with a feed cam with a bearing inside respectively ; Among them, below the feed cams and on both sides corresponding to the upper tool holder are respectively provided with a stopper assembly, the stopper assemblies respectively include two respectively fixed on the upper side of the upper knife seat and for the The limit blocks against which the infeed cams abut, and the two outer bumps respectively fixed at the bottom of the longest distance from the center of the infeed cams, the limit blocks respectively include a placement area and two separate Blocks protruding upward from both sides of the placement area respectively form a distance between the blocks for the positioning of the limit blocks to limit the rotation of the feed cams in the distance. These feed cams are within the longest distance of the punching range. The feed cam stopper of the punching machine according to claim 1, wherein a plurality of first fixing holes are respectively provided on both sides above the upper knife seat, and the first fixing holes are screw holes and are respectively provided with The four correspond to each other, so that a plurality of first fixing members are fixed in the first fixing holes; wherein, the two outer sides below the knife feed cams are respectively provided with a plurality of second fixing holes, and the second fixing holes They are screw holes and are respectively provided with four corresponding to each other, so that a plurality of second fixing members can be fixed in the second fixing holes. The feed cam stopper of the punching machine according to claim 2, wherein the stop bodies are respectively provided with a plurality of first countersunk holes corresponding to the first fixing holes of the upper knife seat, In order for the first fixing parts to penetrate into the first countersunk holes and to be fixed in the first fixing holes respectively, so that the limit blocks are respectively positioned in the combined state of the two sides above the upper tool seat . According to claim 3, the feed cam stopper of the punching machine, wherein the first fixing parts are screws. The feed cam stopper of the punching machine according to claim 2, wherein the shapes of the protrusions are set to be arc-shaped bodies to match the arcs on the lower two outer sides of the feed cams, and the protrusions The stops are respectively provided with a plurality of second countersunk holes corresponding to the second fixing holes of the feed cams, so that the second fixing parts can penetrate the second countersunk holes and be fixed respectively. In the second fixing holes, the protrusions are positioned respectively in the combined state of the feed cams. According to claim 5, the feed cam stopper of the punching machine, wherein the second fixing parts are screws.

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