CN112722944B

CN112722944B - Roll changing device of film blowing machine

Info

Publication number: CN112722944B
Application number: CN202011549825.0A
Authority: CN
Inventors: 曹玉
Original assignee: Chongqing Ruiting Plastic Co Ltd
Current assignee: Chongqing Ruiting Plastic Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2023-02-10
Anticipated expiration: 2040-12-24
Also published as: CN112722944A

Abstract

The invention relates to the technical field of film rolling equipment, and particularly discloses a roll changing device of a film blowing machine, which comprises a rack, a workbench and a rolling roller, wherein the rolling roller comprises two half rollers, the workbench is connected with two supports in a sliding manner, the two half rollers are respectively connected to different supports in a rotating manner, a driving piece for driving the supports to slide is arranged on the rack, a motor for driving the rolling roller to rotate is arranged on the supports, cavities are arranged in the two half rollers, the two half rollers are connected in a sliding manner, a plurality of air holes are formed in the half rollers, an adsorption piece is arranged on the rack, an adsorption hole is formed in the end part of one half roller, and the adsorption piece is connected with the adsorption hole through a pipeline. The scheme of adopting this patent is through utilizing the negative pressure effect in the gap that forms between fiber container and wind-up roll, and the wind-up roll is carrying out the in-process of coiling to the film like this, and fiber container can not appear horizontal slip and radial beating on the wind-up roll for the quality of coiling improves.

Description

Roll changing device of film blowing machine

Technical Field

The invention relates to the technical field of film winding equipment, in particular to a roll changing device of a film blowing machine.

Background

The film blowing machine is a device for producing plastic films, the plastic films need to be rolled from blowing molding to material rolling, the films are rolled mainly by using a paper tube for main supporting and are rolled automatically by using a rolling device, the paper tube needs to be replaced after the films wound on the paper tube reach the specified thickness every time, and the current replacement mode mainly comprises manual, semi-manual or automatic modes.

Although convenient and fast, save labour, but the cost is too high, need adopt expensive precision equipment to accomplish, to middle-size and small-size enterprise, the cost drops into too high, consequently adopt half artifical mode at present, for example, patent publication No. CN 106081704B is a plastic film coiling mechanism convenient to install and change, through setting up the wind-up roll into two half rolls of detachable, accomplish the installation and the change of fiber container through the support of two half rolls of slip, such operating method is simple, nevertheless because need realize installation and change through relative slip between half roll and the fiber container, consequently need form certain gap between fiber container and the half roll, and if the gap undersize, the fiber container is difficult to take off, if the gap is too big then can make the film when coiling, the wind-up roll can appear the problem of horizontal slip and radial runout, thereby influence the quality of film book.

Disclosure of Invention

The invention provides a roll changing device of a film blowing machine, which aims to solve the problem that in the prior art, a paper tube is taken out from a half roller through sliding, so that a gap is needed between the paper tube and the half roller, but the paper tube slides left and right or jumps in the radial direction in the winding process.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a film blowing machine's change package device, which comprises a frame, workstation and wind-up roll, the wind-up roll includes two and half rollers, sliding connection has two supports on the workstation, two and half rollers rotate respectively and connect on different supports, be equipped with the gliding driving piece of drive support in the frame, be equipped with drive wind-up roll pivoted motor on the support, all be equipped with the cavity in two and half rollers, two and half rollers are sliding connection, be equipped with a plurality of gas pockets on half roller, be equipped with the absorption piece in the frame, the absorption hole has been seted up to the tip of one of them and half roller, absorb the piece and pass through the pipe connection with the absorption hole.

The technical principle and the effect of the technical scheme are as follows:

when installing the fiber container in this scheme, drive two and half roller relative sliding separately through the driving piece, later with the fiber container cover on two and half rollers, and let two and half rollers in opposite directions sliding connection together after, close the driving piece, later open and adsorb the piece, the negative pressure that its produced passes through cavity and pore effect in the gap that forms between fiber container and wind-up roll, the wind-up roll is carrying out the in-process of coiling to the film like this, fiber container can not appear horizontal slip and radial run-out on the wind-up roll, make the quality of coiling improve.

Further, the two half rollers are connected in a sliding mode in a specific mode that an inner spline sleeve is arranged at the end part of one half roller, outer spline teeth are arranged at the end part of the other half roller, and the inner spline sleeve is matched with the outer spline teeth.

Has the advantages that: the arrangement enables the two half rollers to be simply connected together, and meanwhile, the two half rollers cannot rotate relatively.

Furthermore, a plurality of grooves are axially formed in the half roller and uniformly distributed along the axial direction of the half roller.

Has the advantages that: although a gap is formed between the paper tube and the half roller, the width of the gap is smaller, so that the space for negative pressure to enter can be increased by arranging the plurality of grooves on the half roller, and the gap between the paper tube and the half roller cannot be increased.

Further, the strip-shaped groove is not communicated with the cavity.

Has the beneficial effects that: this is provided to prevent the strength of the half roller from being lowered.

Furthermore, the half rollers are provided with check rings, and a placing area of the winding drum is formed between the check rings on the two half rollers.

Has the beneficial effects that: the setting of retaining ring is in order to play limiting displacement to the fiber container promptly, also is in order to seal the gap that forms between fiber container and the wind-up roll simultaneously.

Furthermore, a sealing layer is bonded on one side, away from the support, of the retainer ring.

Has the beneficial effects that: the sealing layer is arranged to improve the sealing property between the paper tube and the winding roller.

Furthermore, the check ring and the half roller are in sliding connection, a connecting block located between the check ring and the support is fixed on the half roller, and an elastic part is fixed between the connecting block and the check ring.

Has the beneficial effects that: through the elastic component setting between connecting block and retaining ring for laminating that the retaining ring can be better is at the tip of fiber container, and then improves the leakproofness between fiber container and the wind-up roll.

Furthermore, the connecting block is embedded with an electromagnet, one side of the check ring, which is close to the connecting block, is provided with a magnetic sheet, and the electromagnet is repelled with the magnetic sheet after being electrified.

Has the advantages that: the arrangement is to improve the propping force of the retainer ring to the paper tube.

Furthermore, the connecting block and the check ring are both made of cast iron materials.

Has the advantages that: because the thick film in winding back on the fiber container, weight is great, consequently when two half rollers of slip separate, the tip that half roller and support are connected receives ascending power increase, long-time the use can lead to half roller cracked risk to appear, and because connecting block and retaining ring setting are in the position that is close to the support in this scheme, and adopt cast iron material to make, the quality of this kind of material is big, consequently it has formed decurrent "pressure" to half roller for the junction of half roller and support is difficult for breaking, thereby half roller's life has been improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a roll changing device of a film blowing machine according to the present invention;

FIG. 2 is a schematic structural diagram of a film winding process in an embodiment of a roll changing device of a film blowing machine according to the present invention.

Reference numerals in the drawings of the specification include: workstation 1, wind-up roll 2, half roller 3, spout 4, support 5, internal spline cover 6, external spline tooth 7, connecting block 8, retaining ring 9, elastic component 10, gas pocket 11, bar groove 12, rotary joint 13.

Detailed Description

The following is further detailed by way of specific embodiments:

the embodiment is as follows:

substantially as shown in figures 1 and 2 of the accompanying drawings: the utility model provides a film blowing machine's change package device, which comprises a frame, workstation 1 and wind-up roll 2, wherein spout 4 has been seted up on workstation 1, the horizontal sliding connection has two supports 5 in the spout 4, be equipped with two supports 5 of drive in the frame and carry out relative slip's driving piece, the driving piece adopts electric cylinder in this embodiment, wind-up roll 2 is formed by two half roller 3 can dismantle the connection, wherein two half roller 3 rotate respectively and connect on support 5, be equipped with drive wind-up roll 2 pivoted motor on one of them support 5, two half roller 3 pass through splined connection in this embodiment, all be equipped with the cavity in two half roller 3, the tip of one of them half roller 3 is equipped with internal spline housing 6, and the tip of another half roller 3 is equipped with external spline tooth 7, and internal spline housing 6 cooperates with external spline tooth 7.

The winding roll is characterized in that a connecting block 8 is fixed on the half roll 3, wherein the connecting block 8 is arranged close to the support 5, a check ring 9 is horizontally and slidably connected onto the half roll 3, an elastic part 10 is fixed between the check ring 9 and the connecting block 8, the elastic part 10 is a tension spring in the embodiment, the outer diameter of the check ring 9 is larger than that of the paper tube, a sealing layer is bonded on one side, far away from the connecting block 8, of the check ring 9, a winding roll placing area is formed between the check rings 9 on the two half rolls 3 in the embodiment, a plurality of air holes 11 communicated with the cavity are formed in the two half rolls 3, the air holes 11 are uniformly distributed in the outer wall of the half rolls, a plurality of strip-shaped grooves 12 are formed in the half rolls 3 in the axial direction of the half rolls, the strip-shaped grooves 12 are distributed at equal intervals in the circumferential direction of the winding roll 2, and the strip-shaped grooves 12 are not communicated with the cavity.

In this embodiment, an electromagnet is embedded in the connecting block 8, a magnetic sheet is arranged on one side, close to the connecting block 8, of the retainer ring 9, and after the electromagnet is electrified, the electromagnet is electrified and then repels the magnetic sheet, that is, the connecting block 8 can repel the retainer ring 9, and in addition, the connecting block 8 and the retainer ring 9 are both made of cast iron materials.

Still be equipped with in the frame and adsorb the piece, adsorb the piece in this embodiment and for the adsorption pump, seted up at the tip of one of them half roller 3 and adsorbed the hole, adsorb downthehole rotary joint 13 that is equipped with, the adsorption pump passes through the pipeline and is connected with rotary joint 13.

Because the paper tube needs to be taken out from the half roller 3 through sliding, a gap is needed between the paper tube and the half roller 3, and the paper tube can slightly slide left and right or jump radially in the winding process, therefore, in the scheme, when the paper tube is installed, the two half rollers 3 are driven to slide relatively and be separated through the electric cylinder, then the paper tube is sleeved on the two half rollers 3, the two half rollers 3 are connected together in a sliding manner in opposite directions, the electric cylinder is closed, at the moment, the power supply connected with the electromagnet is opened, the check ring 9 is close to the paper tube and abuts against the end part of the paper tube, the negative pressure pump is started, the generated negative pressure acts on the gap formed between the paper tube and the winding roller 2 through the cavity and the air hole 11, and therefore, the paper tube cannot slide left and right and jump radially on the winding roller 2 in the film winding process of the winding roller 2, and the winding quality is improved.

And when the fiber container needs to be changed, close the power of sorption pump and electro-magnet, make retaining ring 9 loosen the fiber container, start the electrical cylinder simultaneously, make two supports 5 carry out relative slip, this moment because connecting block 8 and retaining ring 9 all are close to support 5 setting, and it adopts cast iron material to make, its weight is great, though along with half roller 3 roll-off fiber container, the tip that half roller 3 and support 5 are connected receives the power of upwards perk also crescent, but in this embodiment because connecting block 8 and retaining ring 9 play the effect of balancing weight, both have played the effect of "pushing down" jointly, consequently can also prevent the cracked condition from appearing in the junction of pair roller and support 5 in this embodiment.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several variations and modifications can be made, which should also be considered as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a film blowing machine's change package device, includes frame, workstation and wind-up roll, and the wind-up roll includes two and half rollers, and sliding connection has two supports on the workstation, and two and half rollers rotate respectively to be connected on different supports, are equipped with the gliding driving piece of drive support in the frame, are equipped with drive wind-up roll pivoted motor, its characterized in that on the support: cavities are formed in the two half rollers, the two half rollers are in sliding connection, a plurality of air holes are formed in the half rollers, an adsorption piece is arranged on the rack, an adsorption hole is formed in the end portion of one half roller, and the adsorption piece is connected with the adsorption hole through a pipeline; the half roller is provided with a plurality of strip-shaped grooves along the axial direction, the plurality of strip-shaped grooves are uniformly distributed along the axial direction of the half roller, and the strip-shaped grooves are not communicated with the cavity; the paper tube winding device is characterized in that the half rollers are provided with check rings, a paper tube placing area is formed between the check rings on the two half rollers, one side, away from the support, of each check ring is bonded with a sealing layer, and the paper tube can be adsorbed on the winding roller through negative pressure generated by the adsorption piece.

2. The film blowing machine roll changing device according to claim 1, characterized in that: the two half rollers are connected in a sliding mode in a specific mode that an inner spline sleeve is arranged at the end part of one half roller, outer spline teeth are arranged at the end part of the other half roller, and the inner spline sleeve is matched with the outer spline teeth.

3. The film blowing machine roll changing device according to claim 1, characterized in that: the retaining ring is connected with the half roller in a sliding mode, a connecting block located between the retaining ring and the support is fixed on the half roller, and an elastic part is fixed between the connecting block and the retaining ring.

4. The roll changing device of the film blowing machine according to claim 3, characterized in that: the electromagnetic iron is embedded in the connecting block, a magnetic sheet is arranged on one side, close to the connecting block, of the retainer ring, and the electromagnetic iron is repelled with the magnetic sheet after being electrified.

5. The film blowing machine roll changing device according to claim 4, characterized in that: the connecting block and the check ring are both made of cast iron materials.