CN110902441A

CN110902441A - Automatic film feeding machine for producing plastic bags

Info

Publication number: CN110902441A
Application number: CN201911158857.5A
Authority: CN
Inventors: 蒋三林; 廖高水; 兰菊花
Original assignee: Hunan Mamati Environmental Protection Technology Co Ltd
Current assignee: Hunan Mamati Environmental Protection Technology Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-03-24

Abstract

The invention discloses an automatic film reloading machine for producing plastic bags, which comprises a rack and feeding units, wherein two groups of feeding units are arranged on the rack and are arranged at intervals up and down, each feeding unit comprises two groups of feeding mechanisms which are symmetrically arranged front and back, each feeding mechanism comprises a chain wheel, a chain, a support sleeve and a support plate, a stepping motor is arranged at the bottom of each support plate, an electric push rod is fixedly arranged on an output shaft of each stepping motor, an installation plate is fixedly arranged at the end part of a telescopic rod of each electric push rod, a plurality of suckers are uniformly arranged on the side wall, close to the chain, of each installation plate, the chain wheels and the chains are driven by a driving motor to move, when the film winding rollers are driven by the chains to move to a vertical section, in the downward movement process, installation shafts of the film winding rollers enter U-shaped support grooves of the support plates, then the film winding rollers fall on the, the automation degree is high, the working efficiency is improved, and the labor intensity of workers is reduced.

Description

Automatic film feeding machine for producing plastic bags

Technical Field

The invention relates to the technical field of plastic bag production equipment, in particular to an automatic film feeder for plastic bag production.

Background

The common food packaging plastic bag is mostly made of polyethylene film, and the film is nontoxic, so the plastic bag can be used for containing food. Another film is made of polyvinyl chloride, which is also non-toxic.

Chinese utility model patent CN208086892U discloses an automatic film changing machine for producing plastic bags, which comprises a frame, wherein the frame is provided with an upper film roll and a lower film roll which can be automatically erected at the working position, and an upper storage device and a lower storage device which are respectively used for storing the upper film roll and the lower film roll discharged from the upper roll and the lower roll, a fixing device which can clamp and fix the film between the two roll and stop the film from advancing is arranged between each roll releasing device and the corresponding storage device, when the fixing device clamps the film, the corresponding storage device continuously conveys the film stored in the storage device forwards for producing the plastic bags, a cutting device which is used for cutting off the film is arranged between each fixing device and the corresponding roll releasing device, a welding device which is used for pressing and welding the films of the front film roll and the back film roll together is arranged between each cutting device and the corresponding fixing device, in the material changing process, the material storage device continuously conveys the films stored in the material storage device outwards, so that continuous and uninterrupted production is realized;

the automatic material replacing machine is complex in structure, more troublesome to operate and higher in production cost and maintenance cost.

Disclosure of Invention

An embodiment of the invention aims to provide an automatic film reloading machine for producing plastic bags, so as to solve the problems.

In order to achieve the purpose, the invention provides the following technical scheme:

a film automatic material changing machine for producing plastic bags comprises a machine frame and feeding units, wherein supporting legs are uniformly and symmetrically and fixedly arranged at the bottom of the machine frame, two groups of feeding units are arranged on the machine frame and are arranged at intervals from top to bottom, each feeding unit comprises two groups of feeding mechanisms symmetrically arranged from front to back, each feeding mechanism comprises chain wheels, chains, supporting sleeves and supporting plates, the number of the chain wheels is four, the chain wheels are respectively positioned at four corners of a rectangle, the chain wheels are rotatably arranged on the machine frame through mounting shafts and bearings, the end part of the mounting shaft of one of the four chain wheels is fixedly connected with the output shaft of a driving motor, the chains are connected among the four chain wheels, a plurality of side plates are rotatably arranged on chain plates of the chains at intervals, the supporting sleeves are uniformly arranged on opposite surfaces of two side plates of the two groups of feeding mechanisms of the feeding units, u-shaped supporting grooves are formed in the supporting plate and located on the vertical section movement path of the chain.

In one alternative: the gyro wheel is installed to the supporting leg bottom, the gyro wheel is from locking-type gyro wheel.

In one alternative: the side plate is rotatably connected with a chain plate of the chain through a pin shaft, the pin shaft is fixed with the chain plate of the chain through welding, and a through hole for the pin shaft to penetrate through is formed in the side plate.

In one alternative: step motor is installed to backup pad bottom, fixed mounting has electric putter on step motor's the output shaft, electric putter's telescopic link tip fixed mounting has the mounting panel, evenly installs a plurality of sucking discs on the mounting panel is close to the lateral wall of chain, lies in two sets of feeding unit side intermediate positions in the frame and is equipped with the inlet port of plastic bag production, and the induction roller is installed to plastic bag production inlet port department symmetry.

In one alternative: the utility model discloses a bearing support, including U type support groove, backup pad, micro motor, lead screw, stop collar, backup pad, the backup pad is located U type support groove department and installs the locating part, the locating part includes micro motor, lead screw and stop collar, micro motor installs on the backup pad lateral wall, micro motor's output shaft drive connects the lead screw, and the outside cover of lead screw is equipped with the stop collar, stop collar and lead.

In one alternative: a sliding block is fixed on the limiting sleeve, and a guide sliding groove for sliding connection of the sliding block is formed in the supporting plate.

In one alternative: a second motor is arranged on the frame and positioned on the side edge of the inlet, and a plurality of brush strips are circumferentially fixed on an output shaft of the second motor.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

the automatic film winding device is provided with a feeding unit, the feeding unit comprises two groups of feeding mechanisms symmetrically arranged front and back, each feeding mechanism comprises a chain wheel, a chain, a supporting sleeve and a supporting plate, a driving motor is started to drive the chain wheels and the chain to move, the chain drives a film to move to a vertical section around a winding roller, in the downward movement process, a film enters a U-shaped supporting groove of the supporting plate around a mounting shaft of the winding roller, then the film falls on the supporting plate around the winding roller, then a free end of the film on the film winding roller is sucked through a sucking disc, a motor is driven to rotate by a certain angle through a stepping motor, the electric push rod drives the sucking disc and the free end of the film to move to an inlet, the film automatically moves into the inlet under the action of a guide roller, the film winding roller is automatically replaced, the automation degree is high, the working efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a feeding mechanism in a first embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic structural diagram of a third embodiment of the present invention.

Notations for reference numerals: 1-frame, 2-support plate, 3-guide-in roller, 4-inlet, 5-step motor, 6-electric push 6 rod, 7-suction cup, 8-chain wheel, 9-chain, 10-side plate, 11-pin shaft, 12-support sleeve, 13-U-shaped support groove, 14-support leg, 15-roller, 16-micro motor, 17-screw rod, 18-limit sleeve, 19-limit piece, 20-second motor and 21-brush strip.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.

Example 1

Referring to fig. 1-2, in the embodiment of the invention, an automatic film changing machine for producing plastic bags comprises a frame 1 and feeding units, wherein supporting legs 14 are uniformly and symmetrically and fixedly installed at the bottom of the frame 1, in the embodiment, the supporting legs 14 are preferably fixedly connected with the bottom of the frame 1 through screws, rollers 15 are installed at the bottom ends of the supporting legs 14, the rollers 15 are self-locking rollers to facilitate the movement of the device, two groups of feeding units are installed on the frame 1 and are arranged at intervals up and down, the feeding units comprise two groups of feeding mechanisms symmetrically arranged front and back, the feeding mechanisms comprise chain wheels 8, chains 9, support sleeves 12 and support plates 2, the chain wheels 8 are four in number and are respectively located at four corners of a rectangle, the chain wheels 8 are rotatably installed on the frame 1 through installation shafts and bearings, the end part of an installation shaft of one of the four chain wheels 8 is fixedly connected with an, the driving motor is installed on the frame 1 through screws, the chains 9 are connected among the four chain wheels 8, a plurality of side plates 10 are installed on the chain plates of the chains 9 in a rotating mode at intervals, the side plates 10 are preferably connected with the chain plates of the chains 9 through pin shafts 11 in a rotating mode, the pin shafts 11 are fixed with the chain plates of the chains 9 through welding, through holes for the pin shafts 11 to penetrate through are formed in the side plates 10, supporting sleeves 12 are uniformly arranged on opposite surfaces of two side plates 10 of two groups of feeding mechanisms of the feeding unit in a integrated mode, the supporting sleeves 12 are U-shaped, further, the supporting plate 2 is fixed on the frame 1, in the embodiment, the supporting plate 2 is preferably fixed with the frame 1 through welding, U-shaped supporting grooves 13 are formed in a vertical section moving path of the chains 9 on the supporting plate 2 and used for supporting a film to wind up a roller, and further, in this embodiment, the stepping motor 5 is preferably installed at the bottom of the installation plate through a screw, the output shaft of the stepping motor 5 is fixedly provided with an electric push 6 rod, in this embodiment, the electric push 6 rod is preferably fixedly connected with the output shaft of the stepping motor 5 through a screw, the end portion of the telescopic rod of the electric push 6 rod is fixedly provided with an installation plate, in this embodiment, the installation plate is preferably fixed with the telescopic rod of the electric push 6 rod through welding, the side wall of the installation plate, which is close to the chain 9, is uniformly provided with a plurality of suckers 7, the suckers 7 are used for adsorbing the free ends of the wound films on the winding roller, the frame 1 is provided with an inlet 4 for producing the plastic bags at the middle position of the side edges of the two groups of feeding units, the inlet 4 for producing the plastic bags is symmetrically provided with the guide rollers 3, and during operation, the two ends of the installation shaft of the film winding roller are respectively positioned in the support sleeve 12, when the film winding roller needs to be replaced, after the film winding roller to be replaced is taken down, the driving motor is started to drive the chain wheel 8 and the chain 9 to move, when the chain 9 drives the film winding roller to move to a vertical section, in the downward movement process, the installation shaft of the film winding roller enters the U-shaped support groove 13 of the support plate 2, then the film winding roller falls on the support plate 2, then the free end of the film on the film winding roller is sucked through the sucking disc 7, the electric push 6 rod is driven by the stepping motor 5 to rotate for a certain angle, the electric push 6 rod drives the sucking disc 7 and the free end of the film to move to the inlet 4, and the film winding roller automatically moves to the inlet 4 under the action of the guide roller, so that the film winding roller is automatically replaced, the automation degree is high, the working efficiency is improved, and the labor intensity of workers.

Example 2

Referring to fig. 3 to 4, the embodiment of the present invention is different from embodiment 1 in that, in order to ensure the stability of the film winding roller, a limiting member 19 is installed at a position of the U-shaped supporting groove 13 of the supporting plate 2, the limiting member 19 includes a micro motor 16, a lead screw 17 and a limiting sleeve 18, the micro motor 16 is installed on a side wall of the supporting plate 2, an output shaft of the micro motor 16 is connected to the lead screw 17 in a driving manner, in this embodiment, the lead screw 17 is preferably fixedly connected to an output shaft of the micro motor 16 through a coupler, the limiting sleeve 18 is sleeved outside the lead screw 17, the limiting sleeve 18 is in threaded connection with the lead screw 17, the limiting sleeve 18 is in sliding connection with the supporting plate 2, a slider is fixed on the limiting sleeve 18, a guide sliding groove for sliding connection of the slider is formed on the supporting plate 2, the micro motor 16 is, the screw rod 17 drives the limiting sleeve 18 to extend to the upper part of the U-shaped supporting groove 13, so that the U-shaped supporting groove 13 is sealed, and the film is prevented from separating from the U-shaped supporting groove 13 around the winding roller.

Example 3

Referring to fig. 5, the embodiment of the present invention is different from embodiment 1 in that a second motor 20 is installed on the frame 1 at a side of the inlet 4, a plurality of brush bars 21 are circumferentially fixed on an output shaft of the second motor 20, and the brush bars 21 rotate to clean dust, impurities, and the like on the film, so as to ensure the cleanness of the film during operation and improve the product quality.

The working principle of the invention is as follows: when the film winding roller is used and needs to be replaced, after a film winding roller to be replaced is taken down, the driving motor is started to drive the chain wheel 8 and the chain 9 to move, when the chain 9 drives the film winding roller to move to a vertical section, in the downward movement process, the mounting shaft of the film winding roller enters the U-shaped supporting groove 13 of the supporting plate 2, then the film winding roller falls on the supporting plate 2, then the free end of the film on the film winding roller is sucked through the sucking disc 7, the electric pushing rod 6 is driven by the stepping motor 5 to rotate for a certain angle, the electric pushing rod 6 drives the sucking disc 7 and the free end of the film to move to the inlet 4, and the film winding roller automatically moves to the inlet 4 under the action of the guide roller, so that the automatic replacement of the film winding roller is realized, the automation degree is high, the working efficiency is improved, and the labor intensity of workers is reduced.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an automatic quick-witted that reloads of film for plastic bag production, includes frame (1) and pay-off unit, the even symmetry fixed mounting in frame (1) bottom has supporting leg (14), its characterized in that, two sets of pay-off unit all installs in frame (1) and upper and lower interval sets up, pay-off unit includes two sets of feeding mechanism that the front and back symmetry set up, feeding mechanism includes sprocket (8), chain (9), support cover (12) and backup pad (2), sprocket (8) totally four and be located four angles of rectangle respectively, sprocket (8) are installed in frame (1) through installation axle and bearing rotation, the installation axle tip of one of four sprockets (8) and driving motor's output shaft fixed connection, four be connected with chain (9) between sprocket (8), polylith curb plate (10) are installed to the interval rotation on the link joint of chain (9), the opposite face of two sets of feeding mechanism's of feeding unit both sides board (10) is gone up the homogeneous body and is equipped with and support cover (12), support cover (12) and be the U type, backup pad (2) are fixed in on frame (1), U type support groove (13) have been seted up on backup pad (2) the vertical section motion route that lies in chain (9).

2. The automatic film reloader for producing plastic bags according to claim 1, characterized in that rollers (15) are mounted at the bottom ends of said supporting legs (14), said rollers (15) being self-locking rollers.

3. The automatic film changing machine for producing the plastic bags according to claim 1, characterized in that the side plate (10) is rotatably connected with the chain plate of the chain (9) through a pin shaft (11), the pin shaft (11) is fixed with the chain plate of the chain (9) through welding, and the side plate (10) is provided with a through hole for the pin shaft (11) to pass through.

4. The automatic film feeding machine for producing the plastic bags according to any one of claims 1 to 3, wherein a stepping motor (5) is installed at the bottom of the supporting plate (2), an electric pushing rod (6) is fixedly installed on an output shaft of the stepping motor (5), a mounting plate is fixedly installed at the end part of a telescopic rod of the electric pushing rod (6), a plurality of suckers (7) are uniformly installed on the side wall of the mounting plate close to the chain (9), an inlet port (4) for producing the plastic bags is arranged in the middle position of the side edges of the two groups of feeding units on the rack (1), and guide rollers (3) are symmetrically installed at the inlet port (4) for producing the plastic bags.

5. The automatic film changing machine for producing the plastic bags according to claim 4, wherein a limiting part (19) is installed on the supporting plate (2) at the position of the U-shaped supporting groove (13), the limiting part (19) comprises a micro motor (16), a screw rod (17) and a limiting sleeve (18), the micro motor (16) is installed on the side wall of the supporting plate (2), an output shaft of the micro motor (16) is in driving connection with the screw rod (17), the limiting sleeve (18) is sleeved outside the screw rod (17), the limiting sleeve (18) is in threaded connection with the screw rod (17), and the limiting sleeve (18) is in sliding connection with the supporting plate (2).

6. The automatic film feeding machine for producing the plastic bags according to claim 5, characterized in that a slide block is fixed on the limiting sleeve (18), and a guide chute for the slide block to be connected in a sliding way is arranged on the supporting plate (2).

7. The automatic film feeding machine for producing the plastic bags according to claim 4, characterized in that a second motor (20) is installed on the frame (1) at the side of the inlet port (4), and a plurality of brush strips (21) are fixed on the output shaft of the second motor (20) in the circumferential direction.