CN211968602U

CN211968602U - Punching device for bag making machine

Info

Publication number: CN211968602U
Application number: CN202020522740.2U
Authority: CN
Inventors: 韩基群
Original assignee: Dalian Xingshun Plastics Co ltd
Current assignee: Dalian Xingshun Plastics Co ltd
Priority date: 2020-04-11
Filing date: 2020-04-11
Publication date: 2020-11-20
Anticipated expiration: 2030-04-11

Abstract

The utility model discloses a punching device that system bag machine was used, including support arm and ring cutter, cantilever and lower cantilever are gone into through horizontal distribution's slot to the one end of support arm, upward install the pneumatic cylinder on the cantilever, the output of pneumatic cylinder and the top fixed connection of ejector pin, the ring cutter is installed to the bottom of ejector pin, it has the briquetting still to move about on the ejector pin, the briquetting cover is outside and with the coaxial-center setting of ring cutter with the ring cutter, intermediate frequency heating coil is installed to briquetting inside wall bottom, be equipped with the discharge opening on the cantilever down. The utility model discloses a medium frequency heating coil carries out the rapid heating to the ring cutter, starts the pneumatic cylinder after the heating is accomplished, promotes the spring and compresses tightly the briquetting on the bag body, can effectively prevent the bag body and remove, improves the bag body precision of punching, and the ejector pin continues to descend simultaneously, utilizes the ring cutter after the heating to accomplish the processing of punching to the bag body, can avoid the department of punching to appear tearing the condition, and the position of punching is smooth to level and smooth, the high quality of punching.

Description

Punching device for bag making machine

Technical Field

The utility model belongs to the technical field of punching device, concretely relates to punching device that system bag machine was used.

Background

The bag making machine is a machine for making various plastic packaging bags or packaging bags made of other materials, and the processing range of the bag making machine is various plastic packaging bags or packaging bags made of other materials with different sizes, thicknesses and specifications. According to the design requirement of the bag body, the bag body is required to be punched usually, and the existing punching device adopts a direct punching mode mostly, so that punching is finished only by utilizing shearing action, the tearing phenomenon at the punching position is easily caused, or the punching quality is influenced due to the rough and uneven condition of the material of the bag body.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a punching device that system bag machine was used to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the punching device for the bag making machine comprises a supporting arm and a ring cutter, wherein one end of the supporting arm is divided into an upper cantilever and a lower cantilever through a horizontally distributed slot, a hydraulic cylinder is installed on the upper cantilever, the output end of the hydraulic cylinder is fixedly connected with the top end of a push rod, the ring cutter is installed at the bottom end of the push rod, a pressing block is movably sleeved on the push rod, the pressing block is sleeved outside the ring cutter and coaxially arranged with the ring cutter, a medium-frequency heating coil is installed at the bottom of the inner side wall of the pressing block, and a discharge hole is formed in the lower cantilever.

Preferably, the upper cantilever is provided with an upper through hole and a lower through hole which are communicated with each other, the upper through hole is communicated with the upper surface of the upper cantilever, the output end of the hydraulic cylinder is movably arranged in the upper through hole, the lower through hole is communicated with the top of the slot, and the pressing block is movably arranged in the lower through hole.

Preferably, the ejector rod in the upper through hole is sleeved with a spring, and two ends of the spring are respectively abutted against the output end of the hydraulic cylinder and the top of the pressing block.

Preferably, the ejector rod is further provided with a limiting ring, and the limiting ring is abutted against the lower surface of the pressing block.

Preferably, in the initial state, the height of the medium-frequency heating coil is the same as that of the ring cutting knife.

Preferably, a heat insulation gasket is fixed on the lower surface of the pressing block, and the heat insulation gasket is arranged in the ring cutting knife and the discharge hole in an inscribed mode.

The utility model discloses a technological effect and advantage:

start intermediate frequency heating coil and carry out the rapid heating to the ring cutter, after the heating is accomplished, start hydraulic cylinder, the ring cutter and the briquetting that the pneumatic cylinder promoted the ejector pin bottom move down simultaneously, when the briquetting compressed tightly the bag body, the pneumatic cylinder continues to stretch out, thereby compression spring compresses tightly the briquetting on the bag body, can prevent effectively that the bag body from removing, improve the bag body precision of punching, the ejector pin continues to descend simultaneously, utilize the ring cutter after the heating to accomplish the processing of punching to the bag body, can avoid punching the department the tearing condition to appear, the position of punching is smooth and level, the punching quality is high, the waste material passes through the discharge opening and discharges.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 3 is a schematic view of the upper suspension arm structure of the present invention.

In the figure: the device comprises a support arm 1, a hydraulic cylinder 2, an upper cantilever 3, an upper through hole 301, a lower through hole 302, a slot 4, a lower cantilever 5, a discharge hole 6, a spring 7, a pressing block 8, a heat-insulating gasket 9, a mandril 10, a limiting ring 11, a ring cutting knife 12 and a medium-frequency heating coil 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-3, a punching device for a bag making machine comprises a supporting arm 1 and a ring cutter 12, wherein one end of the supporting arm 1 is divided into an upper cantilever 3 and a lower cantilever 5 through a slot 4 which is horizontally distributed, a hydraulic cylinder 2 is installed on the upper cantilever 3, the output end of the hydraulic cylinder 2 is fixedly connected with the top end of a push rod 10, the ring cutter 12 is installed at the bottom end of the push rod 10, a pressing block 8 is further movably sleeved on the push rod 10, the pressing block 8 is sleeved outside the ring cutter 12 and coaxially arranged with the ring cutter 12, a medium-frequency heating coil 13 is installed at the bottom of the inner side wall of the pressing block 8, and a discharge hole 6 is formed in the lower.

Last through-hole 301 and the lower through-hole 302 that are equipped with mutual intercommunication on the cantilever 3, go up through-hole 301 and last cantilever 3 upper surface intercommunication, the output activity of pneumatic cylinder 2 sets up in last through-hole 301, lower through-hole 302 and slot 4 top intercommunication, briquetting 8 activity sets up under in through-hole 302. Through last through-hole 301, can lead to the output shaft of pneumatic cylinder 2, improve pneumatic cylinder 2's motion precision, briquetting 8 adopts cyclic annular setting, mutually supports with lower through-hole 302, avoids briquetting 8 slope.

The ejector rod 10 in the upper through hole 301 is sleeved with a spring 7, and two ends of the spring 7 are respectively abutted against the output end of the hydraulic cylinder 2 and the top of the pressing block 8. Under the promotion of spring 7, can compress tightly briquetting 8 downwards on the bag body, compress tightly the periphery of punching the hole department, be favorable to improving the quality of punching.

The top rod 10 is further provided with a limiting ring 11, and the limiting ring 11 is tightly propped against the lower surface of the pressing block 8. The limiting ring 11 is used for driving the pressing block 8 to move upwards for resetting when the hydraulic cylinder 2 is reset.

In the initial state, the height of the medium-frequency heating coil 13 is the same as that of the ring cutting knife 12. The intermediate-frequency heating coil 13 can heat the ring cutter 12, and is beneficial to tidy and smooth cuts.

And a heat insulation gasket 9 is fixed on the lower surface of the pressing block 8, and is internally tangent to the ring cutting knife 12 and the discharge hole 6. Under the effect of insulating washer 9, avoid the bag body to warp on the punch department periphery position of heat transmission to the bag body through briquetting 8.

It is specific, during the use, pass through slot 4 with the bag body level, when reacing assigned position department, stop the bag body, start intermediate frequency heating coil 13 and carry out the rapid heating to ring cutter 12, after the heating is accomplished, start hydraulic cylinder 2, hydraulic cylinder 2 promotes ring cutter 12 and the briquetting 8 of ejector pin 10 bottom and moves down simultaneously, when the briquetting 8 compresses tightly the bag body, hydraulic cylinder 2 continues to stretch out, thereby compression spring 7 compresses tightly briquetting 8 on the bag body, can prevent effectively that the bag body from removing, improve the bag body precision of punching, ejector pin 10 continues to descend simultaneously, utilize ring cutter 12 after the heating to accomplish the processing of punching of the bag body, can avoid punching the department to appear tearing, the condition of coarse, the position of punching is smooth and level, the high quality of punching, the waste material passes through discharge opening 6 and discharges.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a punching device that bag machine was used, includes support arm (1) and girdling sword (12), its characterized in that: the one end of support arm (1) falls into cantilever (3) and lower cantilever (5) through horizontally distributed slot (4), upward install pneumatic cylinder (2) on cantilever (3), the output of pneumatic cylinder (2) and the top fixed connection of ejector pin (10), cutting ring cutter (12) are installed to the bottom of ejector pin (10), it has briquetting (8) to go back movable sleeve on ejector pin (10), briquetting (8) cover set up with the axle center in cutting ring cutter (12) outside and with cutting ring cutter (12), intermediate frequency heating coil (13) are installed to briquetting (8) inside wall bottom, be equipped with discharge opening (6) down on cantilever (5).

2. The punching apparatus for a bag machine of claim 1, wherein: go up last through-hole (301) and lower through-hole (302) that are equipped with mutual intercommunication on cantilever (3), go up through-hole (301) and last cantilever (3) upper surface intercommunication, the output activity of pneumatic cylinder (2) sets up in last through-hole (301), through-hole (302) and slot (4) top intercommunication down, briquetting (8) activity sets up under in through-hole (302).

3. The punching apparatus for a bag machine of claim 2, wherein: the spring (7) is sleeved on the ejector rod (10) in the upper through hole (301), and two ends of the spring (7) are respectively abutted against the output end of the hydraulic cylinder (2) and the top of the pressing block (8).

4. The punching apparatus for a bag machine of claim 1, wherein: and the ejector rod (10) is also provided with a limiting ring (11), and the limiting ring (11) is tightly propped against the lower surface of the pressing block (8).

5. The punching apparatus for a bag machine of claim 1, wherein: in the initial state, the height of the medium-frequency heating coil (13) is the same as that of the ring cutter (12).

6. The punching apparatus for a bag machine of claim 1, wherein: the lower surface of the pressing block (8) is fixed with a heat insulation gasket (9), and the ring cutting knife (12) is arranged in an inscribed mode with the discharge hole (6).