CN201136604Y

CN201136604Y - Film cutting device for heat-shrinkable film packaging machine

Info

Publication number: CN201136604Y
Application number: CNU2008200819183U
Authority: CN
Inventors: 史定淼
Original assignee: NINGBO JSHANG MACHINERY CO Ltd
Current assignee: NINGBO JSHANG MACHINERY CO Ltd
Priority date: 2008-01-07
Filing date: 2008-01-07
Publication date: 2008-10-22
Anticipated expiration: 2018-01-07

Abstract

The utility model provides a film cutting device of a heat-shrinkable plastic film packaging machine, which is used for packaging bottled products. The film cutting device is combined by a film feeding mechanism and a film cutting mechanism, wherein, the film cutting mechanism mainly includes a cutting knife which is fixed on a lower knife seat provided with a heating component, an upper knife seat arranged on a sliding block which can move up and down along a guide rod, and an air cylinder rod which drives the sliding block to move. The film cutting device is characterized in that a plastic film transition plate is additionally arranged on a position in front of which the plastic film passes through the upper and the lower knife seats. The plastic film transition plate is a container in which cooling water is stored, and is arranged on a framework, the top face thereof is a slab which is horizontally arranged and is parallel to the cutting knife, the length of the top face is long enough for covering the cutting knife, the height of the top face flushes with the cutting edge of the cutting knife and nears to the cutting edge of the cutting knife; a tie-in of a cooling water inlet or outlet pipe is arranged on the bottom surface of the plastic film transition plate. Since the film cutting device is additionally provided with the cooled plastic film transition plate, the plastic film on the film feeding mechanism enters into the position of the cutting knife through the plastic film transition plate during being continuously delivered out, and cannot be stuck due to the heat diffusion of the heating component of the lower knife seat; the continuous production can be successfully carried out.

Description

The film cutting apparatus of thermal contraction plastic film wrapping machine

Technical field

The utility model relates to the field shaping technique of plastics, and the thermal contraction that especially relates to by plastics makes it to engage used equipment.

Background technology

In order to save carton, producer adopts thermal contraction plastic film wrapping machine to pack bottled product; Bottle is arranged in groups through minute bottle during packing, by conveyer and push away the film location of cutting that bottle bar is delivered to wrapping machine, by film cutting apparatus plastic sheeting is wrapped the bottle group, shears then, and is simultaneously that otch is bonding, finishes packing through the thermal contraction of baking plastic film again; Present film cutting apparatus is combined into by film feeding mechanism and film cutting machine structure, wherein the film cutting machine structure mainly comprises the cutting knife that is fixed on the following tool rest that heat element is housed, be installed in along the upper cutter head on the sliding shoe of guide rod up-and-down movement, and the cylinder rod of drive sliding shoe motion, engage with cutting knife on being fixed on down tool rest by reciprocating upper cutter head, shear with bonding wrapping up in the plastic film that twists on the bottle group; The problem that this device exists is, after plastic film was sheared, the plastic film on the film feeding mechanism very easily in the process clung because of touching heat-producing tool rest down sending continuously, has to this moment shut down, and influence is produced continuously.

Summary of the invention

The purpose of this utility model is the deficiency at above-mentioned prior art, a kind of film cutting apparatus of thermal contraction plastic film wrapping machine is provided, make on the film feeding mechanism plastic film send continuously in the process not can because of under the heat diffusion of tool rest heat element cling, can produce continuously smoothly.

For achieving the above object, the technical solution of the utility model is such: a kind of film cutting apparatus of thermal contraction plastic film wrapping machine, combine by film feeding mechanism and film cutting machine structure, wherein the film cutting machine structure mainly comprises the cutting knife that is fixed on the following tool rest that heat element is housed, be installed in along the upper cutter head on the sliding shoe of guide rod up-and-down movement, and the cylinder rod of drive sliding shoe motion, it is characterized in that, on the position before the plastic film that film feeding mechanism is sent passes through up and down between tool rest, set up the plastic film rebound, this plastic film rebound is the container of storage cooling water expansion tank in, is installed on the frame, its end face is dull and stereotyped, horizontal positioned is also parallel with cutting knife, and length can cover cutting knife, and height flushes with the cutting edge of cutting knife, and near the cutting edge of cutting knife, the bottom surface is provided with turnover cooling water pipe interface.

Owing to adopted technique scheme, the film cutting apparatus of a kind of thermal contraction plastic film wrapping machine of the present utility model, because of having set up plastic film rebound through cooling, make the plastic film on the film feeding mechanism enter cutter location by the plastic film rebound sending continuously in the process, can not cling because of the heat diffusion of following tool rest heat element, influence film feeding, can produce continuously smoothly.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a film cutting apparatus structural representation of the present utility model.

Fig. 2 is the plastic film rebound scheme drawing of setting up.

Fig. 3 is the A-A cutaway view of Fig. 2.

Among the figure: 1, cylinder rod joint, 2, crossbeam, 3, guide rod, 4, sliding shoe, 5, strut bar, 6, upper cutter head, 7, permanent seat, 8, cutting knife, 9, folder cloth, 10, tool rest down, 11, cleading, 12, backing plate, 13, sliding sleeve, 14, cutter cover, 15, end face, 16, screw is installed, 17, waterpipe jointing.

The specific embodiment

Shown in Fig. 1-3, the film cutting apparatus of a kind of thermal contraction plastic film wrapping machine of the present utility model, combine by film feeding mechanism and film cutting machine structure, wherein the film cutting machine structure comprises frame, by permanent seat 7 rack-mounted left and right sides guide rods 3, be set in the outer movable block 4 of guide rod, crossbeam 2 between two movable blocks, by cylinder rod joint 1 and the joining cylinder rod of crossbeam, the upper cutter head 6 that crossbeam connects by strut bar 5 down, be connected in backing plate 12 on two guide rods by sliding sleeve 13, be fixed on the cleading 11 on the backing plate, the following tool rest 10 that heat element is housed that is provided with on the cleading, the cutting knife of installing on the tool rest 10 under reaching 8, the cutting knife two ends are provided with cutter cover 14, are provided with folder cloth 9 between cutting knife and following tool rest; It is characterized in that, plastic film that film feeding mechanism is sent by the position before 6,10 of the tool rests up and down on, set up the plastic film rebound, this plastic film rebound is the container of storage cooling water expansion tank in, by being installed, screw 16 is installed on the frame, its end face 15 is dull and stereotyped, and horizontal positioned is also parallel with cutting knife 8, and length can cover cutting knife, height flushes with the cutting edge of cutting knife, and near the cutting edge of cutting knife, the bottom surface is provided with turnover cooling water pipe interface 17, connects water pipe and links to each other with the water source.

Claims

1, a kind of film cutting apparatus of thermal contraction plastic film wrapping machine, combine by film feeding mechanism and film cutting machine structure, wherein the film cutting machine structure comprises frame, by permanent seat (7) rack-mounted left and right sides guide rod (3), be set in the outer movable block (4) of guide rod, crossbeam between two movable blocks (2), by cylinder rod joint (1) and the joining cylinder rod of crossbeam, the upper cutter head (6) that crossbeam connects by strut bar (5) down, be connected in backing plate (12) on two guide rods by sliding sleeve (13), be fixed on the cleading (11) on the backing plate, the following tool rest (10) that heat element is housed that is provided with on the cleading, and tool rest (10) is gone up the cutting knife of installing (8) down, and the cutting knife two ends are provided with cutter cover (14), are provided with folder cloth (9) between cutting knife and following tool rest; It is characterized in that: on the position before the plastic film that film feeding mechanism is sent passes through up and down between tool rest (6,10), set up the plastic film rebound, this plastic film rebound is the container of storage cooling water expansion tank in, is installed on the frame, and its end face (15) is dull and stereotyped, horizontal positioned is also parallel with cutting knife (8), length can cover cutting knife, and height flushes with the cutting edge of cutting knife, and the cutting edge of close cutting knife, the bottom surface is provided with turnover cooling water pipe interface (17), connects water pipe and links to each other with the water source.