CN214293442U

CN214293442U - Plastic film mechanism of punching

Info

Publication number: CN214293442U
Application number: CN202120096546.7U
Authority: CN
Inventors: 乐帮甫; 乐瑞昊
Original assignee: Qingdao Yongshengchang Plastic Precision Co ltd
Current assignee: Qingdao Yongshengchang Plastic Precision Co ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-09-28
Anticipated expiration: 2031-01-14

Abstract

The utility model discloses a plastic film mechanism of punching, which comprises a frame, be equipped with driving element in the frame, driving element is connected with the mechanism of punching, be equipped with the passageway that supplies the film to pass in the frame of the mechanism below of punching, the passageway bottom surface is equipped with and punches the mechanism position department of correspondence and be equipped with down the nib, a serial communication port, the mechanism of punching includes driving element, punching, presses membrane spare and elastic component, when punching to plastic film, press membrane spare at first with the plastic film contact and compress tightly, later the punching sword carries out the blanking to plastic film to produce the blanking sediment, be equipped with the cavity in the punching, the cavity downwards with the well cavity intercommunication of punching sword department, be equipped with the push rod that is used for releasing the blanking sediment in the cavity. The utility model discloses simple structure, pore-forming is of high quality unhairing limit, and the aperture standard, operating speed are more than the twice of ordinary film mechanism of punching a hole, and can get rid of the blanking sediment automatically, have good economic technological effect.

Description

Plastic film mechanism of punching

Technical Field

The utility model relates to a drilling equipment technical field specifically is a plastic film mechanism of punching.

Background

The plastic film is soft and thin, and is generally punched by a cylindrical hollow punching cutter, the film is placed between the punching cutter and a lower die hole during punching, then the punching cutter moves towards the plastic film and the lower die hole and punches the plastic film, the plastic film is easy to pull by the punching cutter at the moment of punching, so that the quality of formed holes is poor, and burrs are easy to appear on the edge of the holes; in addition, after the punching blade punches the plastic film several times, the punching slag generated during the punching process may adhere to and block the punching blade, which may affect the sharpness of the punching blade and the quality of the formed hole.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a plastic film mechanism of punching, it has solved among the prior art plastic film behind the punching hole edge deckle edge easily appear, blanking sediment accumulation behind can block the technical problem of punching knife, and can reach the pore-forming is of high quality, can get rid of the technological effect of blanking sediment automatically. The adopted technical scheme is as follows:

the utility model provides a plastic film mechanism of punching, includes the frame, be equipped with driving element in the frame, driving element is connected with the mechanism of punching, it is equipped with the passageway that supplies the film to pass in the frame of mechanism below to punch, the passageway bottom surface is equipped with and punches the mechanism position department of correspondence and be equipped with down the nib, the mechanism of punching includes punching, pressure membrane spare and elastic component, it is equipped with the hollow sword that punches of tube-shape to punch a lower extreme, be equipped with vertical slide bar on the piece that punches a hole, pressure membrane spare with slide bar sliding connection just can follow slide bar up-and-down motion, the elastic component cover is established outside the slide bar and can compress tightly pressure membrane spare downwards on plastic film, when punching to plastic film, pressure membrane spare at first with plastic film contact and compress tightly, afterwards punching sword carries out the pore-forming to plastic film to produce the blanking sediment.

On the basis of the technical scheme, still including the push rod that is used for clearing up blanking sediment on the sword that punches a hole, the push rod includes the head and locates the pole portion of head below, be equipped with the cavity in the punching piece, the cavity downwards with the well cavity intercommunication of punching sword department, the push rod is arranged in the cavity, just the top of cavity inner wall is equipped with the spacing groove that prevents push rod head and deviate from, push rod pole portion stretch into downwards to the cavity intracavity of punching sword department.

On the basis of the technical scheme, the film pressing piece is a cylindrical hollow piece with an opening at the lower part, the top wall of the film pressing piece is sleeved outside the sliding rod, and an elastic pressing pad is arranged at the lower edge of the film pressing piece.

On the basis of the technical scheme, the cutter head part of the punching cutter comprises a plurality of cutter teeth which are uniformly arranged.

On the basis of above-mentioned technical scheme, it keeps off the ring and keeps off the ring down to punch a hole outward to be equipped with, just it keeps off the ring and keeps off a punching hole between the ring down and forms the slide bar to go up, the elastic component is established the compression spring outside the slide bar for the cover, the one end and the last fender ring butt of elastic component, the other end of elastic component compresses tightly the film pressing piece and keeps off under on the ring.

On the basis of the technical scheme, when the push rod part moves to the bottommost end relative to the punching part, the bottom surface of the rod part is upwards or downwards close to the bottom surface of the punching knife or is flush with the bottom surface of the punching knife.

On the basis of the technical scheme, the center lines of the film pressing piece, the punching piece and the elastic piece are collinear.

On the basis of the technical scheme, a baffle is connected to the end of a piston rod of the driving element, and the baffle is detachably connected with the punching mechanism.

Advantageous effects

The utility model discloses well punching knife is when blanking to plastic film downwards, and the pressure membrane spare can at first contact with plastic film and compress tightly the plastic film who waits to cut the department, and later punching knife carries out the blanking pore-forming to plastic film, and plastic film warp because of receiving dragging of punching knife tool bit when so can avoiding the blanking, avoids causing hole edge deckle edge, avoids the pore-forming shape to take place the deviation, and pore diameter standard after the pore-forming, and operating speed is more than the twice of ordinary film mechanism of punching a hole.

The utility model discloses be equipped with the cavity in it for hollow structure in the well punching piece, and be equipped with the push rod in the cavity, the head of push rod up-and-down motion in the cavity can restrict ground, when drive element drove the mechanism upward movement that punches a hole, the push rod can punch a hole a downstream relatively because of inertial action, so can release the blanking sediment that the accumulation is in the sword that punches a hole, realize the function of instant clearance punching a hole sword. In addition, the head of push rod is restricted at the spacing inslot, therefore the push rod can not follow the cavity and drop, and the bottom surface of push rod pole portion simultaneously can be with the bottom surface parallel and level of punching a hole sword or be close to the bottom surface of punching a hole sword, thereby can avoid blanking sediment to accumulate in a large number in punching a hole sword influence follow-up pore-forming quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawing in the following description is only an embodiment of the invention, and that for a person skilled in the art, other embodiments can be derived from the drawing provided without inventive effort.

FIG. 1: the structure schematic diagram of the middle frame of the utility model;

FIG. 2: the structure schematic diagram of the punching mechanism in the utility model is shown;

FIG. 3: the utility model discloses a section structure schematic diagram of a front view of a punching mechanism;

Detailed Description

The invention will be further described with reference to the following figures and examples:

reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

A plastic film mechanism of punching as shown in fig. 1 ~ 3, including

frame

1, 1 both sides of frame are equipped with the feed roll, the feed roll can be intermittently to plastic film feed pay-off, punch the operation when the feed roll pauses, the rigid coupling has drive element in the frame 1, drive element is two guide arm cylinders, and the end-to-end connection of two guide arms has the baffle, can dismantle under the baffle and be connected with mechanism 2 of punching, so can conveniently change mechanism 2 of punching, be equipped with the passageway 11 that supplies the film to pass on the frame 1 of mechanism 2 below of punching, passageway 11 bottom surface is equipped with and punches 2 positions of mechanism and corresponds the department and be equipped with lower die hole 12, when mechanism 2 of punching punches to plastic film downwards, punch the last punching knife 24 of mechanism 2 of punching can inlay and put in lower die hole 12.

The punching mechanism 2 comprises a punching piece 21, a film pressing piece 22 and an elastic piece 23, the lower end of the punching piece 21 is provided with a cylindrical hollow punching knife 24, and the knife head part of the punching knife 24 comprises a plurality of uniformly arranged knife teeth. In punching, the tooth tips of the cutter teeth first pierce the plastic film and separate the cutting waste from the plastic film more quickly.

The upper punching piece 21 is fixedly provided with an upper retaining ring 214 and a lower retaining ring 215, the punching piece between the upper retaining ring 214 and the lower retaining ring 215 forms a sliding rod 211, the elastic piece 23 is a compression spring sleeved outside the sliding rod 211, one end of the elastic piece 23 is abutted against the upper retaining ring 214, and the other end of the elastic piece 23 compresses the film pressing piece 22 on the lower retaining ring 215. The film pressing piece 22 is a cylindrical hollow piece with an opening at the lower part and is in a cover shape, the top wall of the film pressing piece 22 is sleeved outside the sliding rod 211, an upward concave annular groove is formed in the lower edge of the film pressing piece 22, an elastic pressing pad 4 is embedded in the annular groove, and the elastic pressing pad 4 can be a rubber O-shaped ring. Wherein the cross sectional shape of pressing membrane piece 22 can be circular, square or other shapes, and the cross sectional shape of punching cutter 24 also can be circular direction or other shapes, and the cross sectional shape of punching cutter 24 and the cross sectional shape of pressing membrane piece 22 are circular in this embodiment, in addition the central line collineation of pressing membrane piece 22, punching piece 21 and elastic component 23 can guarantee that punching cutter 24 is when cutting, and the power of dragging of pressing membrane piece 22 to blanking sediment edge is even unanimous, is favorable to guaranteeing good pore-forming quality. In addition, the bottom surface of the punching knife 24 is slightly higher than the bottom surface of the film pressing member 22, so that when the plastic film is punched, the film pressing member 22 is firstly contacted with the plastic film and is pressed tightly, then the punching knife 24 punches holes on the plastic film, blanking slag is generated, and burrs or shape errors in the formed holes are avoided.

The punching device is characterized by further comprising a push rod 3 used for cleaning punching slag on the punching knife 24, wherein the push rod 3 comprises a head 31 and a rod 32 which is arranged below the head 31 and is integrally formed with the head 31, a cavity 212 coaxial with the punching piece 21 is arranged in the punching piece 21, the cavity 212 can be sealed when the punching piece 21 is mounted on a baffle, the cavity 212 is communicated with the hollow cavity at the punching knife 24 downwards, the push rod 3 is arranged in the cavity 212, a limit groove 213 for preventing the push rod head 31 from coming off is arranged above the inner side wall of the cavity 212, the limit groove 213 is a radial annular groove arranged on the inner side wall of the cavity 212, the height of the annular groove is larger than that of the push rod head 31, the maximum stroke of the push rod 3 relative to the punching piece 21 is the height difference between the annular groove and the push rod head 31, and the push rod 32 extends downwards into the hollow cavity at the punching knife 24, in this embodiment, when the rod portion 32 moves to the bottom end with respect to the punching blade 24, the bottom surface of the push rod portion 32 is flush with the bottom surface of the punching blade 24, so that the punching slag stored in the hollow cavity in the punching blade 24 can be immediately pushed out downwards, and in other embodiments, the bottom surface of the push rod portion 32 may be slightly higher than the bottom surface of the punching blade 24 or slightly lower than the bottom surface of the punching blade 24, because the punching quality of the punching blade 24 is not affected when a small amount of punching slag is accumulated in the punching blade 24.

Working process

The punching operation is carried out when the feeding roller stops feeding, specifically, the double-guide-rod cylinder drives the punching mechanism 2 to move downwards, then the elastic pressing pad 4 at the lower edge of the film pressing piece 22 is firstly contacted with the plastic film, then the punching piece 21 continuously moves downwards relative to the film pressing piece 22 until the tooth tops of the cutter teeth of the punching cutter 24 puncture the plastic film and completely separate the punching slag from the plastic film, in the process, the pressing force of the film pressing piece 22 on the plastic film is gradually increased so that the plastic film does not move, meanwhile, the push rod 3 in the cavity 212 moves to the bottommost end in the punching cutter 24 under the self inertia effect, if the punching slag is remained in the punching cutter 24, the push rod 3 can be contacted with the top surface of the punching slag, and when the double-guide-rod cylinder drives the punching mechanism 2 to move upwards, the push rod 3 can move downwards relative to the punching cutter 24 under the self inertia effect to push the punching slag out of the punching cutter 24, this prevents the accumulation of cutting slag in the piercing cutter 24.

The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims

1. A plastic film punching mechanism comprises a rack (1), wherein a driving element is arranged on the rack, a punching mechanism (2) is connected below the driving element, a channel (11) for a film to pass through is arranged on the rack (1) below the punching mechanism (2), and a lower die hole (12) corresponding to the punching mechanism (2) is arranged on the bottom surface of the channel (11), and is characterized in that the punching mechanism (2) comprises a punching piece (21), a film pressing piece (22) and an elastic piece (23);

the punching machine is characterized in that a hollow punching knife (24) in a cylindrical shape is arranged at the lower end of the punching piece (21), a vertical sliding rod (211) is arranged on the punching piece (21), a film pressing piece (22) is connected with the sliding rod (211) in a sliding mode and can move up and down along the sliding rod (211), an elastic piece (23) is sleeved outside the sliding rod (211) and can downwards press the film pressing piece (22) to be tightly pressed on a plastic film, when a plastic film is punched, the film pressing piece (22) is firstly contacted with and tightly pressed by the plastic film, and then the punching knife (24) punches holes on the plastic film and generates punching slag.

2. The plastic film punching mechanism according to claim 1, further comprising a push rod (3) for cleaning punching slag in the punching knife (24), wherein the push rod (3) comprises a head portion (31) and a rod portion (32) arranged below the head portion (31), a cavity (212) is arranged in the punching member (21), the cavity (212) is communicated with the hollow cavity at the punching knife (24) downwards, the push rod (3) is arranged in the cavity (212), a limit groove (213) for preventing the push rod head portion (31) from being removed is arranged above the inner side wall of the cavity (212), and the push rod portion (32) extends downwards into the hollow cavity at the punching knife (24).

3. The plastic film punching mechanism according to claim 2, wherein the film pressing member (22) is a cylindrical hollow member with a lower opening, a top wall of the film pressing member (22) is sleeved outside the sliding rod (211), and an elastic pressing pad (4) is arranged on a lower edge of the film pressing member (22).

4. The plastic film hole punch mechanism of claim 2, wherein the punch blade (24) includes a head portion including a plurality of uniformly arranged teeth.

5. The plastic film punching mechanism according to any one of claims 2-4, wherein an upper retaining ring (214) and a lower retaining ring (215) are arranged outside the punching member (21), the punching member (21) between the upper retaining ring (214) and the lower retaining ring (215) forms a sliding rod (211), the elastic member (23) is a compression spring sleeved outside the sliding rod (211), one end of the elastic member (23) abuts against the upper retaining ring (214), and the other end of the elastic member (23) presses the film pressing member (22) against the lower retaining ring (215).

6. A plastic film perforating mechanism as claimed in claim 5, characterized in that when said push rod portion (32) is moved to the lowermost end relative to the punch member (21), the bottom surface of said rod portion (32) is brought up or down close to or flush with the bottom surface of the punch blade (24).

7. A plastic film perforating mechanism as claimed in claim 5, characterized in that the centerlines of said pressing member (22), said piercing member (21) and said elastic member (23) are collinear.

8. Plastic film perforating mechanism according to claim 5, characterized in that a shutter is connected to the end of the piston rod of the drive element, said shutter being detachably connected to the perforating mechanism (2).