CN111470357B

CN111470357B - Automatic roller-releasing and winding roller for plastic film coil stock

Info

Publication number: CN111470357B
Application number: CN202010287898.0A
Authority: CN
Inventors: 沈爱娟; 钮明江; 杨永亚
Original assignee: Suzhou Guangda Plastic Packaging Co ltd
Current assignee: Suzhou Guangda Plastic Packaging Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-07-02
Anticipated expiration: 2040-04-14
Also published as: CN111470357A

Abstract

The invention discloses an automatic roll-releasing wind-up roll for plastic film coil stock, which comprises a central shaft, a movable roll strip radially penetrating through the central shaft and movable support blocks arranged in the movable roll strip at intervals, wherein the movable support blocks are spliced with the outer side of the movable roll strip to form a circular wind-up outer ring, positioning pins arranged on the inner side of the movable roll strip are matched with positioning holes arranged on the central shaft, two ends of the movable roll strip are symmetrically provided with roll-releasing cylinders, the front end of a mandril is vertically provided with a stretching plate and matched with a T-shaped groove arranged at the corresponding position on the inner side of the movable support block to slide, the middle parts of two ends of each movable support block are provided with stretching cylinders, the front end of the mandril is vertically and fixedly connected with the movable roll strip, the wind-up roll adopts the cylinders to control the inner and outer sliding of the movable support blocks of the wind-up roll outer ring, the radial stretching cylinders are used to control the inward contraction or outward expansion of the movable, thereby improving the automatic roll-off efficiency and facilitating the transportation of the coiled plastic film.

Description

Automatic roller-releasing and winding roller for plastic film coil stock

Technical Field

The invention relates to the technical field of plastic film winding equipment, in particular to an automatic roller-releasing winding roller for plastic film coil stock.

Background

Modern packaging materials are various, especially the demand for plastic packaging materials is huge, the application is wide, and plastic packaging materials are needed in many occasions such as express logistics, food production, household articles and the like. The existing plastic packing materials are mostly produced into packing bags or packing boxes with various styles based on plastic films, and in the processing technology for producing the plastic films, the plastic films are mostly rolled into rollers and then fed to a production line for manufacturing the packing bags or the packing boxes. Most of the traditional winding devices adopt a plurality of rollers to be matched for winding and are transferred to a bag making or box making production line for production, but if the two processes are carried out at a longer distance or are carried out between two enterprises in a feeding cooperative relationship, the rollers wound in the middle are transported together, so that the transportation cost is increased. Similarly, the material loading position of different production lines may be different to the size specification of center roll axle, and the roller that is twined will hinder material loading production so, must break away from it to change suitable roller and carry out the material loading again, but there is not the roller mechanism that can break away from automatically in the current market, can't conveniently take off the roller and change, await urgent need to improve.

Disclosure of Invention

The invention aims to: in view of the technical requirements of the technical process of producing plastic bags or plastic boxes by plastic films in the background technology, the middle wound roll shaft is automatically separated so as to conveniently replace the roll shaft with the required specification for convenient feeding and convenient transportation, the automatic roll-off winding roll for the plastic film coil stock is designed and provided, the movable supporting block of the outer ring of the winding roll is controlled by the air cylinder to slide inside and outside, the movable roll strip is controlled to shrink inwards or expand outwards by means of the radial stretching air cylinder, the two ends of the winding roll are matched with the shaft ends to be connected with the reinforcing shaping strip in series, so that the winding roll can freely shrink or expand under the action of the air cylinder, the automatic roll-off efficiency is improved, and the transportation of the coiled plastic films is facilitated.

The technical scheme adopted for solving the problems is as follows:

an automatic roll-releasing wind-up roll for plastic film coil stock comprises a central shaft, a plurality of movable roll bars which are radially penetrated and sleeved with the central shaft, and a plurality of movable support blocks which are arranged inside the movable roll bars at intervals, wherein the movable support blocks and the outer sides of the movable roll bars are spliced to form a circular wind-up outer ring, the axial lengths of the movable support blocks and the movable roll bars are the same, a positioning pin arranged on the inner side of each movable roll bar is matched with a positioning hole arranged on the central shaft to realize radial sliding,

the two ends of the movable roll bar are symmetrically provided with roller-releasing cylinders, the extension direction of the mandril of the roller-releasing cylinders is perpendicular to the positioning pin, the front end of the mandril is perpendicularly provided with a stretching plate which is matched with a T-shaped groove arranged at the corresponding position at the inner side of the movable supporting block to slide and control the movable supporting block to retract inwards,

the middle parts of two ends of each movable supporting block are provided with stretching cylinders, the stretching direction of the ejector rods of the stretching cylinders is along the shrinking direction of the movable supporting blocks, the front ends of the ejector rods are fixedly connected with the movable roll strips vertically, the stretching cylinders of a plurality of work at first simultaneously, the movable supporting blocks of the plurality of shrink inwards, the movable roll strips are controlled by the roller releasing cylinders of the plurality of shrink radially towards the direction of the central shaft, and the outer ring of the winding roll is shrunk, so that the roll is automatically released.

Furthermore, the positioning pins arranged on the inner sides of the movable roll strips and the positioning pins arranged on the adjacent movable roll strips are arranged at intervals and matched with the positioning hole shaft holes arranged on the central shaft at intervals, and the two movable roll strips slide mutually without interference.

Furthermore, the two ends of the movable roll bar are axially provided with limiting columns, and the limiting columns are provided with limiting blocks and are fixedly connected with the two ends of the central shaft after being connected in series through the reinforcing and shaping bars.

Furthermore, the sliding direction of the reinforcing and shaping strip after the hole is punched with the limiting column is the same as the matching direction of the positioning pin and the positioning hole.

The invention has the beneficial effects that:

this an automatic roller wind-up roll takes off for plastic film coil stock adopts the inside and outside slip of movable brace of cylinder control wind-up roll outer lane to with the help of radial tensile cylinder control activity roll bar inwards shrink or outwards expand, both ends cooperate the axle head to establish ties again and strengthen the shaping strip, make the wind-up roll can freely contract the roller or expand the roller under the cylinder effect, thereby improved automatic roller efficiency of taking off, made things convenient for the transportation of lapping plastic film.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings provided in the description of the embodiments will be briefly introduced below.

FIG. 1 is a cross-sectional view of an automatic roll-off wind-up roll for plastic film rolls in accordance with example 1;

FIG. 2 is a cross-sectional view of an automatic roll-off wind-up roll for plastic film rolls in accordance with example 2;

the device comprises a movable roller strip, a movable support block, a stretching cylinder, a push rod of a stretching cylinder, a reinforcing shaping strip, a positioning pin, a central shaft, a stretching plate, a roller-releasing cylinder, a T-shaped groove, a movable support block, a limiting column and a winding outer ring, wherein the movable roller strip is 1-the movable roller strip, the movable support block is 2-the stretching cylinder, the push rod of the stretching cylinder is 4-the reinforcing shaping strip is 5-the positioning pin, the central shaft is 7-the stretching plate is 8-the roller-releasing cylinder is 9.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1:

please refer to fig. 1, this embodiment provides an automatic roll-releasing wind-up roll for plastic film roll material, which includes a

central shaft

7, 4 movable roll bars 1 radially penetrating the central shaft, and 4 movable support blocks 2 disposed inside the movable roll bars at intervals, wherein the movable support blocks 2 are spliced with the outer sides of the movable roll bars 1 to form a circular wind-up outer ring, the axial lengths of the two are the same, a positioning pin 6 disposed on the inner side of the movable roll bar 1 is matched with a positioning hole disposed on the central shaft 7 to realize radial sliding, two ends of the movable roll bars 1 are symmetrically provided with roll-releasing cylinders 9, the stretching direction of the push rods is perpendicular to the positioning pin 6, the front ends of the push rods are vertically provided with stretching plates 8, the stretching plates are matched with T-shaped grooves 10 disposed on the corresponding positions on the inner side of the movable support blocks 2 to slide, and control the movable support blocks 2 to inwardly shrink, the middle portions of two, the stretching direction of the ejector rod 4 is along the shrinking direction of the movable supporting block 2, the front end of the ejector rod 4 is vertically and fixedly connected with the

movable roll strip

1, 4 stretching cylinders 3 work at first simultaneously to shrink the 4 movable supporting blocks 2 inwards, and then the 4 movable roll strips 1 are controlled by 4 roll-off cylinders 9 to shrink radially towards the direction of the central shaft 7, so that the outer ring of the winding roll is shrunk, and the roll is automatically taken off.

The further embodiment is that the positioning pins 6 arranged on the inner side of the movable roll strip 1 and the positioning pins 6 arranged on the adjacent movable roll strips 1 are arranged at intervals and matched with the positioning hole and the shaft hole arranged on the central shaft 7 at intervals, and the two movable roll strips 1 slide mutually without interference.

The further embodiment is that, the two ends of the movable roll strip 1 are axially provided with a limiting column 12, the limiting column 12 is provided with a limiting block and is fixedly connected with the two ends of the central shaft 7 after being connected in series through the reinforced shaping strip 5, and the sliding direction of the reinforced shaping strip 5 and the limiting column 12 after being perforated is the same as the matching direction of the positioning pin 6 and the positioning hole.

Example 2:

referring to fig. 2, this embodiment provides an automatic roll-releasing wind-up roll for plastic film roll material, which includes the central shaft 7 described in

embodiment

1, 3 movable roll bars 1 radially penetrating the central shaft, and 3 movable support blocks 2 disposed inside the movable roll bars at intervals, the movable support blocks 2 are spliced with the outer sides of the movable roll bars 1 to form a circular wind-up outer ring, the axial lengths of the two are the same, a positioning pin 6 disposed inside the movable roll bar 1 is matched with a positioning hole disposed on the central shaft 7 to realize radial sliding, two ends of the movable roll bar 1 are symmetrically provided with roll-releasing cylinders 9, the extension direction of the ejector pins is perpendicular to the positioning pin 6, the front end of the ejector pins is vertically provided with a stretching plate 8, the stretching plate is matched with a T-shaped groove 10 disposed at a position corresponding to the inner side of the movable support block 2 to slide, and control the movable support block 2 to retract inwards, the middle portions of two ends of the movable support, the stretching direction of the ejector rod 4 is along the shrinking direction of the movable supporting block 2, the front end of the ejector rod 4 is vertically and fixedly connected with the

movable roll strip

1, 3 stretching cylinders 3 work at first simultaneously, 3 movable supporting blocks 2 shrink inwards, and then 3 movable roll strips 1 are controlled by 3 roll-off cylinders 9 to shrink radially towards the direction of a central shaft 7, so that the outer ring of the winding roll is shrunk, and the roll is automatically taken off.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, the scope of the present invention being defined by the appended claims and their equivalents.

Claims

1. The utility model provides an automatic roller wind-up roll that takes off for plastic film coil stock which characterized in that: comprises a central shaft, a plurality of movable roll bars which are radially penetrated and sleeved with the central shaft and a plurality of movable support blocks which are arranged inside the movable roll bars at intervals, wherein the movable support blocks and the outer sides of the movable roll bars are spliced to form a circular rolling outer ring, the axial length of the movable support blocks and the axial length of the movable roll bars are the same, a positioning pin arranged on the inner side of each movable roll bar is matched with a positioning hole arranged on the central shaft, and the radial sliding can be realized,

2. The automatic doffing and winding roll for rolls of plastic film according to claim 1, characterized in that: the locating pins that the inboard locating pin that is equipped with of activity roll bar and adjacent activity roll bar were equipped with are arranged at interval to with the cooperation of the locating hole shaft hole of interval arrangement on the center pin, mutual slip noninterference between two activity roll bars.

3. The automatic doffing and winding roll for rolls of plastic film according to claim 1, characterized in that: and the two ends of the movable roll bar are axially provided with limiting columns, and the limiting columns are provided with limiting blocks and are fixedly connected with the two ends of the central shaft after being connected in series through the reinforced shaping bars.

4. The automatic doffing and winding roll for rolls of plastic film according to claim 3, characterized in that: the sliding direction of the reinforcing shaping strip after the hole is punched with the limiting column is the same as the matching direction of the positioning pin and the positioning hole.