CN217026305U

CN217026305U - Circulation material feeding unit

Info

Publication number: CN217026305U
Application number: CN202123044045.3U
Authority: CN
Inventors: 沈文武
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-07-22
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a circulating feeding device which comprises a first XY-direction feeding mechanism, a second XY-direction feeding mechanism, a first clamping mechanism, a second clamping mechanism, two exchange bearing plates and a material loading mechanism, wherein the two exchange bearing plates and the material loading mechanism are arranged on a working table surface; the first XY-direction feeding mechanism, the material loading mechanism and the first clamping mechanism are sequentially connected to drive the material loading mechanism and the first clamping mechanism to move on the working table surface along the X direction or the Y direction; and a second clamping mechanism is arranged on the second XY-direction feeding mechanism and drives the exchange bearing plate clamped by the second clamping mechanism to move or move away from the lower part of the material loading mechanism along the X direction or the Y direction. The fixed material of the cloth is conveyed to different stations of cutting, bag folding and sewing by using the two sets of XY-direction feeding mechanisms, the bag lip or the zipper and the like are continuously conveyed and moved to a sewing position to be matched with the cloth for pocket sewing, and the flexibility is high.

Description

Circulating feeding device

Technical Field

The utility model belongs to the technical field of garment pocket processing equipment, and particularly relates to a circulating feeding device.

Background

In the manufacturing process of shirts, coats, casual pants and the like, pocket ironing and sewing are common steps in the sewing industry, for a long time, the pocket ironing in the pocket sewing process mainly depends on a worker to fold the cloth by hand by using a traditional paperboard die, and the cloth is ironed edge by edge, so that the pocket ironing process is complicated, a plurality of processes are needed, and the pocket ironing process depends on the proficiency level of the worker. Garment processing, from cloth to finished clothes, needs to involve a plurality of working procedures, and because the existing working procedures are generally to process the pocket mouth and the pocket lip zipper separately firstly, and then sew the pocket lip or the zipper on the pocket mouth to finish pocket opening. The processing procedure of sack needs to cut, roll over the bag, the pocket lip is stereotyped and sews the processing to the sack position of clothing, and the cutting is about to open the crack that both ends all are "Y" form on the sack, rolls over the sack that the bag is about to cut and is about to turn over the formation turn-ups inwards, and the pocket lip is stereotyped about to place the pocket lip on the turn-ups, sews up at last.

The pocket mouth position of the garment needs to be subjected to material fixing and cutting during processing, after the cutting is finished, the garment moves to the position above the pocket lip, pocket folding processing is carried out, then the garment is stacked on the pocket lip for shaping, and finally the garment is moved to a sewing station together for sewing. In this in-process, remove the cloth and remove a bag station after the cutting station is accomplished, artifical direct sewing station places bag lip or zip fastener on the workstation after again, wait for a bag cloth of accomplishing to send back bag lip or zip fastener top and overlap and make up, though can realize the single operation, nevertheless latency is of a specified duration, can't realize the continuity of operation that cloth processing and bag lip placed etc. for operating efficiency is low, can not realize continuous effectual production, be unfavorable for quick batch production.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a circulating feeding device which can move a bag lip or a zipper and the like transversely and vertically, quickly feed the bag lip or the zipper and the like to the current sewing station, reduce waiting time, continuously feed the bag lip zipper and the like and improve processing efficiency.

In order to achieve the purpose, the utility model adopts the following technical scheme: a circulating feeding device comprises a first XY-direction feeding mechanism, a second XY-direction feeding mechanism, a first clamping mechanism, a second clamping mechanism, two exchange bearing plates and a material loading mechanism, wherein the two exchange bearing plates and the material loading mechanism are arranged on a working table, the first clamping mechanism or the second clamping mechanism is used for clamping or releasing one exchange bearing plate, and the exchange bearing plate is used for bearing a bag lip or a zipper;

the first XY-direction feeding mechanism, the material loading mechanism and the first clamping mechanism are sequentially connected and drive the material loading mechanism and the first clamping mechanism to move on the working table surface along the X direction or the Y direction; and a second clamping mechanism is arranged on the second XY-direction feeding mechanism and drives the exchange bearing plate clamped by the second clamping mechanism to move or move away towards the lower part of the material loading mechanism along the X direction or the Y direction.

Furthermore, the first clamping mechanism or the second clamping mechanism adopts a clamping cylinder, a convex block is arranged at the rear end of the exchange bearing plate, and an air claw of the clamping cylinder clamps or releases the convex block.

Further, the first XY-direction feeding mechanism or the second XY-direction feeding mechanism includes an X-direction moving mechanism and a Y-direction moving mechanism, and the Y-direction moving mechanism is mounted on the X-direction moving mechanism.

Furthermore, the X-direction moving mechanism or the Y-direction moving mechanism comprises a motor, an annular transmission belt and a guide rail pair, a main shaft of the motor is connected with the annular transmission belt to drive the annular transmission belt to rotate circularly, and a sliding block of the guide rail pair is connected with the annular transmission belt in a sliding manner.

Furthermore, the device also comprises a supporting plate and a movable block, wherein the movable block is sleeved on the annular transmission belt, the supporting plate is fixedly arranged on a sliding block of the guide rail pair, and the movable block can move in a groove at the lower end of the supporting plate.

Furthermore, the Y-direction moving mechanism comprises a motor, a ball screw and a guide rail pair, and the motor is sequentially connected with the ball screw and a sliding block of the guide rail pair.

Furthermore, the front end of the exchange bearing plate is provided with a strip-shaped window for processing cloth.

Further, the material loading mechanism comprises a material fixing mechanism and a material pressing mechanism, the material fixing mechanism comprises a bottom plate, and a processing window is formed in the front end of the bottom plate; the material pressing mechanism is movably arranged on the bottom plate, and a shaping pressing plate of the material pressing mechanism presses the processing window or is removed from the processing window.

Furthermore, the material pressing mechanism also comprises a turnover mechanism and a first back-and-forth movement mechanism, wherein the turnover mechanism is arranged on the bottom plate and comprises a first air cylinder, a first support plate and a first connecting plate; the first connecting plate is connected with the shaping pressing plate, and the first air cylinder stretches and retracts to drive the shaping pressing plate to turn over; the first back-and-forth moving mechanism is connected with the first supporting plate and drives the turnover mechanism and the shaping pressing plate to move back and forth.

Furthermore, the material fixing mechanism also comprises a small pressing frame movably arranged on the bottom plate and an integrated pressing sheet arranged below the bottom plate, and the front ends of the integrated pressing sheet are respectively provided with a processing opening; the small pressing frame comprises a pressing frame body, springs and a rectangular frame which are sequentially arranged from top to bottom, a transverse pressing window is formed in the front end of the pressing frame body, the lower end of the pressing window extends into the rectangular frame, the springs are respectively arranged on the pressing frame body and located on the periphery of the pressing window, and the other ends of the springs are connected with the rectangular frame; when the device is used, the material pressing window, the rectangular frame, the processing window and the processing port correspond in position.

By adopting the technical scheme of the utility model, the utility model has the beneficial effects that: the circulating feeding device utilizes two sets of XY-direction feeding mechanisms to realize the purpose that the fixed material of the cloth is conveyed to different stations for cutting, folding and sewing, and meanwhile, the continuous conveying movement of a bag lip or a zipper and the like to a sewing position to be matched with the cloth for pocket sewing can be realized, the flexibility is high, and the position adjustment is convenient and reliable; the cloth and the like in the pocket processing process are clamped and fixed, so that material pressing and material fixing are realized, all material fixing and material pressing bodies can be adjusted to lift or move back and forth, the flexibility is high, the fixing and moving requirements on the materials in a plurality of procedures of cutting, moving and sewing can be met, and the material pressing is firm; the small pressing frame is beneficial to elastic buffering of the spring, pressing is smoother, gaps of sewn stitches after pressing are uniform and regular and are more standard, and the quality of processed products is effectively improved; little pressure frame and disjunctor formula preforming complex carry out two-sided centre gripping from top to bottom to placing cloth in the processing window of bottom plate and fix for press the material to finalize the design better effect, overall structure is simple, and the equipment replacement is convenient and fast all.

Drawings

FIG. 1 is a perspective view of an endless feed device;

FIG. 2 is an X-direction moving mechanism or a Y-direction moving mechanism;

FIG. 3 is another X-direction moving mechanism or Y-direction moving mechanism;

FIG. 4 is a block diagram of the exchange carrier plate;

FIG. 5 is a perspective view of the material loading mechanism;

fig. 6 is a structural view of the swaging mechanism;

FIG. 7 is a state diagram of the swaging assembly in disassembled state;

FIG. 8 is a structural view of the novel small press frame from the bottom;

fig. 9 is a split state diagram of a novel small press frame.

In the figure: 1 a pressing frame body, 101 a front end, 102 a rear end, 103 a pressing window, 104 a through hole, 105 a saw-toothed structure, 106 a connecting part, 2 a spring, 3 a rectangular frame, 301 an assembling groove or an assembling hole, 302 an embossing, 4 a limiting part, 5 a one-piece pressing sheet, 501 a processing opening, 6 a bottom plate, 7 a first back-and-forth moving mechanism, 701 a second air cylinder, 702 a second supporting plate, 703 a first guide rail pair, 8 a turnover mechanism, 801 an air cylinder, 802 a first supporting plate, 803 a first connecting plate, 804 a rotating shaft, 9 a shaping pressing plate, 10 a second back-and-forth moving mechanism, 1001 a second connecting plate, 1002 a third guide rail pair, 11 a first longitudinal lifting mechanism, 12 a second longitudinal lifting mechanism, 13 a window adjusting component, 14 a telescopic pressing plate, 15 a cloth bearing plate, 16 a first XY-direction feeding mechanism, 17 a second XY-direction feeding mechanism, 18 a second clamping mechanism, 19 an exchange bearing plate, 1901 a strip-shaped window, a lug, 21 a first clamping mechanism, 22 motors A, 23 endless conveyor belts, 24 guide rail pairs A, 25 supporting plates, 26 movable blocks, 27 motors B, 28 ball screws and 29 guide rail pairs B.

Detailed Description

The technical solutions of the present invention are further described and illustrated below by specific embodiments, so that the present invention is more clear and understood. Other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

As shown in fig. 1, the present embodiment relates to a circular feeding device, which includes a first XY-direction feeding mechanism 16, a second XY-direction feeding mechanism 17, a second clamping mechanism 18, two exchange carrier plates 19 disposed on a work table, and a material loading mechanism, wherein the material loading mechanism is further provided with a second clamping mechanism 21, the second clamping mechanism 18 and the first clamping mechanism 21 are respectively used for clamping or releasing one exchange carrier plate 19, and the exchange carrier plate 19 is used for supporting a bag lip or a zipper, etc.

The first XY-direction feeding mechanism 16 is connected with the material loading mechanism and drives the material loading mechanism and the first clamping mechanism 21 on the material loading mechanism to move on the working table surface along the X direction or the Y direction; the second XY-direction feeding mechanism 17 is provided with the second clamping mechanism 18, and drives the exchange bearing plate 19 to move or move away from the lower part of the X-direction or Y-direction material loading mechanism. The cloth is placed on the material loading mechanism, the bag lip or the zipper and the like are placed on the exchange bearing plate, and the bag lip or the zipper and the like are moved to the position below the cloth in different processing stations and finally sewn in the sewing machine station.

A first XY-direction feeding mechanism 16 and a second XY-direction feeding mechanism 17 of the device are respectively arranged on a rack, the upper ends of the XY-direction feeding mechanisms extend out of a working table and are respectively connected with a corresponding clamping mechanism and a corresponding material loading mechanism, and a circulating bearing plate and the material loading mechanism are positioned on the working table of the rack.

The bag opening processing procedures of the bags are from cutting, folding to final sewing, so that the number of the exchange bearing plates can be two, and when the cloth of the material loading mechanism is subjected to crack cutting at the cutting station, one exchange bearing plate at the bag folding station is subjected to placement of a bag lip or a zipper and the like; moving the material loading mechanism to a bag folding station above the exchange bearing plate, and carrying out bag folding operation of cloth; and finally, a second clamping mechanism arranged on the material loading mechanism clamps an exchange bearing plate, the exchange bearing plate and the material loading mechanism move to a sewing machine station together, and the cloth piece is sewn with the bag lip or the zipper to finish pocket sewing. Then the first clamping mechanism clamps the other exchange bearing plate to be placed at a bag folding station for placing a new bag lip or a zipper and the like for carrying out next pocket sewing, the steps are continuously circulated, and uninterrupted pocket processing and sewing are realized.

In a preferred embodiment, as shown in fig. 1 and 4, the first clamping mechanism 21 or the second clamping mechanism 18 employs two clamping cylinders, two of the clamping cylinders are symmetrically arranged, two symmetrical protrusions 1902 are disposed at the rear end of the exchange carrier plate 19, and the air jaws of the clamping cylinders clamp or release the protrusions. The front end of the exchange carrier plate 19 is provided with a strip window 1901 for cloth processing, at which a bag lip or zipper is placed.

Specifically, the first XY-direction feeding mechanism 16 or the second XY-direction feeding mechanism 17 includes an X-direction moving mechanism and a Y-direction moving mechanism, and the Y-direction moving mechanism is mounted on the X-direction moving mechanism.

As shown in fig. 2, the present embodiment provides an X-direction moving mechanism or a Y-direction moving mechanism with a structure, which includes a motor a22, an endless belt 23, and a guide rail pair a24, wherein a main shaft of the motor 22 is connected with the endless belt 23 to drive the endless belt to rotate circularly, and a slider of the guide rail pair a24 is slidably connected with the endless belt 23.

In a preferred embodiment, the sliding connection between the sliding block of the guide rail pair a24 and the endless transmission belt 23 is specifically realized by a supporting plate 25 and a movable block 26, the movable block 26 is sleeved on the endless transmission belt 23, the supporting plate 25 is fixedly arranged on the sliding block of the guide rail pair a, and the movable block 26 is movably connected with the lower surface of the supporting plate 25. The endless belt 23 is driven by a motor to circulate, and rotates the movable block 26 and the support plate 25. The support plate 25 is used for assembling and supporting with other components, such as the first XY-direction feeding mechanism 16, a Y-direction moving mechanism is arranged on the support plate of the X-direction moving mechanism, and a material loading mechanism is arranged on the support plate of the Y-direction moving mechanism.

As shown in fig. 3, the present embodiment provides another structure of an X-direction moving mechanism or a Y-direction moving mechanism, which includes a motor B, a ball screw, and a guide rail pair B, where the motor B is connected with the ball screw and a slider of the guide rail pair B in sequence. In the second XY-direction feeding mechanism 17 of the present embodiment, the X-direction moving mechanism is in the first endless belt type, the Y-direction moving mechanism is provided on the support plate of the X-direction moving mechanism, and the Y-direction moving mechanism is in the ball screw type. Similarly, a support plate is arranged on the sliding block of the guide rail pair and used for mounting other components.

As shown in fig. 5-9, the material loading mechanism includes a material fixing mechanism and a material pressing mechanism. The material fixing mechanism comprises a bottom plate 6, and a processing window 601 is formed in the front end of the bottom plate 6; the pressing mechanism is movably arranged on the bottom plate 6, a shaping pressing plate 9 of the pressing mechanism presses the processing window or is removed from the processing window, and a sewing machine sews along the periphery of the shaping pressing plate 9 in the processing window.

The material pressing mechanism further comprises a first front-back moving mechanism 7, a turnover mechanism 8 and a shaping pressing plate 9 which are arranged on the bottom plate 6. The turnover mechanism 8 comprises a first air cylinder 801, a first support plate 802 and a first connecting plate 803, wherein an ejector rod of the first air cylinder 801 arranged on the first support plate 802 is connected with the upper end of the first connecting plate 803, and a rotating shaft arranged on the first support plate 802 is connected with the lower end of the first connecting plate 803; the first connecting plate 803 is connected with the shaping press plate 9, and the first cylinder 901 stretches and retracts to drive the shaping press plate 9 to turn over by taking the rotating shaft 804 as an axis; the first back-and-forth moving mechanism 7 is connected with the first support plate 802 to drive the turnover mechanism 8 and the shaping press plate 9 to move back and forth integrally, so that the position of the shaping press plate 9 is adjusted.

The first forward-backward moving mechanism 7 of this embodiment includes a second cylinder 701 and a second supporting plate 702, the second supporting plate 702 is disposed at the rear end of the bottom plate 6, and the second cylinder 701 disposed on the second supporting plate 702 is connected to the first supporting plate 802. A guide rail pair is arranged on the second support plate 702, and a sliding block of the guide rail pair is fixedly assembled with the second air cylinder. The whole turnover mechanism 8 is driven to move back and forth by a first back-and-forth movement mechanism 7 arranged on the bottom plate 6.

The first forward-backward moving mechanism 7 further comprises a first guide rail pair 703, a guide rail of the first guide rail pair is mounted on the second support plate 702, and a first support plate is arranged on a sliding block of the first guide rail pair. Because the second air cylinder 701 drives the whole turnover mechanism and the fixed material pressing plate to move linearly back and forth, in order to ensure smooth movement, the movement stability is improved by arranging the guide rail pair 703.

In a preferred embodiment, the pressing mechanism further comprises a small pressing frame movably arranged on the bottom plate 6 and a one-piece pressing plate 5 arranged below the bottom plate 6, and a transverse processing opening 501 is formed at the front end of the one-piece pressing plate 5.

The material fixing mechanism further comprises a second front-and-back moving mechanism 10, a second connecting plate 1001, a small pressing frame 1 and a connected pressing sheet 5, the second front-and-back moving mechanism 10 is installed on the second supporting plate 702, and the small pressing frame 1 is connected with the second front-and-back moving mechanism 10 through the second connecting plate 1001. The second front-back moving mechanism 10 adopts an air cylinder arranged along the front-back direction, in order to ensure the smoothness of front-back expansion, a guide rail pair III 1002 arranged on the vertical plate is further arranged on one side of the air cylinder, and the second front-back moving mechanism is fixed with a connecting plate II 1001 by utilizing a sliding block of the guide rail pair III 1002. The second back-and-forth moving mechanism 10 arranged on the second support plate 702 drives the shaping press plate 9 to move back and forth.

The small pressing frame comprises a pressing frame body 1, a spring 2 and a rectangular frame 3 which are sequentially arranged from top to bottom, a transverse pressing window 103 is formed in the front end 101 of the pressing frame body 1, the lower end of the pressing window can extend into or out of the rectangular frame 3, the springs 2 are respectively arranged on the periphery of the pressing window of the pressing body, and the other ends of the springs 2 are connected with the rectangular frame 3; when the cloth pressing device is used, the material pressing window 103, the rectangular frame 3, the processing window 601 and the processing opening 501 correspond in position, edge sewing is conducted on the range of cloth in the material pressing window, and a pocket or a zipper and the like are installed. The small pressing frame and the integrated pressing sheet are used for respectively pressing and fixing the cloth placed on the bottom plate on two sides, so that the cloth is firmly and smoothly clamped when the pocket is cut or the sewing machine sews.

Because the clothing pocket manufacturing procedure is more, the process equipment such as cutting machine, sewing machine that relate to not only needs lateral shifting, also needs vertical movement simultaneously, satisfies the adjustment of processing station and process. During processing, firstly, cloth is placed on the bottom plate, then the small pressing frame is pressed on the bottom plate, and laser cutting is carried out on the cloth in the pressing window; or the sizing pressing plate is pressed in the small pressing frame, and the cloth along the periphery of the sizing pressing plate in the material pressing window is processed and sewn by the sewing machine, so that the small pressing frame and the sizing pressing plate are required to be adjusted, and a space is provided for the process of placing or removing the cloth on the bottom plate.

The two ends of the spring 2 are connected with the pressing frame body 1 and the rectangular frame 3 through limiting pieces 4 (pins), and the limiting pieces 4 penetrate through holes 104 in the pressing frame body 1 and can slide up and down in the through holes. The lower surface of the rectangular frame 3 is provided with an embossing 302, and the bottom surface of the lower end of the pressing window 103 is provided with a saw-toothed structure 105. The rear end 102 of the pressing frame body 1 is provided with a connecting part 106 which is detachably connected with the second connecting plate 1001.

The device further comprises a first longitudinal lifting mechanism 11, wherein the first longitudinal lifting mechanism 11 is connected with the turnover mechanism 8, and drives the turnover mechanism 8 and the shaping pressing plate 9 arranged on the turnover mechanism to move up and down.

The device also comprises a second longitudinal lifting mechanism 12, wherein the second longitudinal lifting mechanism 12 is respectively connected with the first longitudinal lifting mechanism 11 and the second front-back moving mechanism 10 to drive the first longitudinal lifting mechanism 11 and the second front-back moving mechanism 10 to move up and down.

The first longitudinal lifting mechanism 11 and the second longitudinal lifting mechanism can be directly realized by stretching of an air cylinder, or can be realized by driving a linear guide rail pair by using other power sources, and the like.

As a preferred embodiment, the material fixing mechanism of the device further includes a window adjusting assembly 13 and two telescopic pressing plates 14, the two telescopic pressing plates 14 are symmetrically disposed at the front end and the rear end of the material fixing window 601 of the base plate, and the window adjusting assembly drives the telescopic pressing plates to extend back and forth. The window adjusting assembly 13 comprises two sets of cylinders arranged on the left side and the right side of the bottom plate, one set of cylinders on the same side are respectively connected with the telescopic pressing plate 14 on the same side, and the cylinders drive the telescopic pressing plates to stretch back and forth. When the pocket processing tool is used, the pocket processing tool can meet the requirements of pocket processing of different specifications only by replacing and adopting the telescopic pressing plates of different specifications.

The front end of the bottom plate 6 is provided with a cloth bearing plate 15, and most of the cloth is still outside when a processing window of the bottom plate is placed due to the fact that the cloth is large, and other parts of the cloth are supported through the cloth bearing plate 15.

It should be noted that the drawings provided in the above embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

The utility model is capable of other and equivalent embodiments, and its several details are capable of modifications, equivalents, improvements, and equivalents within the spirit and scope of the present disclosure.

Claims

1. A circular feeding device is characterized by comprising a first XY-direction feeding mechanism, a second XY-direction feeding mechanism, a first clamping mechanism, a second clamping mechanism, two exchange bearing plates and a material loading mechanism, wherein the two exchange bearing plates and the material loading mechanism are arranged on a working table;

2. The circular feeding device according to claim 1, wherein the first clamping mechanism or the second clamping mechanism is a clamping cylinder, the rear end of the exchange carrier plate is provided with a projection, and the projection is clamped or released by a pneumatic claw of the clamping cylinder.

3. The circular feeding device according to claim 1, wherein the first XY-direction feeding mechanism or the second XY-direction feeding mechanism includes an X-direction moving mechanism and a Y-direction moving mechanism, and the Y-direction moving mechanism is mounted on the X-direction moving mechanism.

4. The material circulating and feeding device of claim 3, wherein the X-direction moving mechanism or the Y-direction moving mechanism comprises a motor, an endless conveyor belt and a guide rail pair, a main shaft of the motor is connected with the endless conveyor belt to drive the endless conveyor belt to rotate circularly, and a sliding block of the guide rail pair is connected with the endless conveyor belt in a sliding manner.

5. A circulating feeding device as claimed in claim 4, further comprising a support plate and a movable block, wherein the movable block is sleeved on the annular conveying belt, the support plate is fixedly arranged on the sliding block of the guide rail pair, and the movable block can move in a groove at the lower end of the support plate.

6. The circular feeding device according to claim 3, wherein the Y-direction moving mechanism comprises a motor, a ball screw and a guide rail pair, and the motor is sequentially connected with the ball screw and a slide block of the guide rail pair.

7. The circular feeding device of claim 1, wherein the front end of the exchange carrier plate is provided with a strip-shaped window for processing cloth.

8. The circular feeding device according to claim 1, wherein the material loading mechanism comprises a material sizing mechanism and a material pressing mechanism, the material sizing mechanism comprises a bottom plate, and a processing window is formed in the front end of the bottom plate; the material pressing mechanism is movably arranged on the bottom plate, and a shaping pressing plate of the material pressing mechanism presses the processing window or is removed from the processing window.

9. The circulating feeding device of claim 8, wherein the material pressing mechanism further comprises a turnover mechanism and a first back-and-forth moving mechanism, the turnover mechanism is arranged on the bottom plate and comprises a first air cylinder, a first supporting plate and a first connecting plate, an ejector rod of the first air cylinder arranged on the first supporting plate is connected with the upper end of the first connecting plate, and a rotating shaft arranged on the first supporting plate is connected with the lower end of the first connecting plate; the first connecting plate is connected with the shaping pressing plate, and the first air cylinder stretches and retracts to drive the shaping pressing plate to turn over;

the first back-and-forth moving mechanism is connected with the first supporting plate and drives the turnover mechanism and the shaping pressing plate to move back and forth.

10. The circular feeding device according to claim 8, wherein the material fixing mechanism further comprises a small pressing frame movably arranged on the bottom plate and a one-piece pressing plate arranged below the bottom plate, and the front ends of the one-piece pressing plate are respectively provided with a processing opening;

the small pressing frame comprises a pressing frame body, a spring and a rectangular frame which are sequentially arranged from top to bottom, a transverse pressing window is formed in the front end of the pressing frame body, the lower end of the pressing window extends into the rectangular frame, the pressing body is provided with the spring around the pressing window, and the other end of the spring is connected with the rectangular frame;

when the device is used, the material pressing window, the rectangular frame, the processing window and the processing opening correspond in position.