Bottom sewing device for woven bag production

Abstract

The bottom sewing device for woven bag production comprises a machine frame, a sewing machine is installed on the left side of the top face of the machine frame, and a conveying belt is installed on the right side of the top face of the machine frame. The device has the beneficial effects that the supporting frame, the gear motor, the screw, the threaded sleeve, the movable shell, the buffer block, the pressing plate and the pressing wheel are arranged, the gear motor is started to drive the screw at the output end of the gear motor to rotate, the threaded sleeve is promoted to drive the movable shell to synchronously translate in the stage of moving along the surface of the screw, and the distance between the pressing plate detachably installed below the movable shell and a sewing machine head is adjustable; on the basis, the pressing plate matched with the size of the woven bag is close to the movable shell, so that a convex block of the pressing plate extends into a notch in the bottom of the buffer block, and the woven bag can be conveniently and quickly pressed by rotating plum blossom knobs in threaded connection with the left side and the right side of the pressing plate; the plum blossom knob extends into the notch to be inserted into the groove in the side face of the protruding block, and the effect that the pressing plate is convenient to disassemble and replace is achieved.

Description

Technical Field

[0001] This utility model relates to the field of bottom sewing machine technology, specifically to a bottom sewing device for woven bag production. Background Technology

[0002] Plastic woven bags are a widely used packaging material for fertilizers, chemical products, and other items. During the production process, a bottom sewing machine is needed to sew the bottom of the plastic woven bag.

[0003] In existing technology, in order to increase the running stability of woven bags, the bottom sewing machine on the market has a pressure roller set above the conveyor belt. The pressure roller contacts the woven bag, thereby increasing the running effect of the woven bag. However, the position of the pressure roller is fixed. When it is necessary to sew the bottom of woven bags of different widths, other equipment is required, which cannot meet the bottom sewing needs of woven bags of different widths. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a bottom-sewing device for woven bag production, which has the advantage of being suitable for sewing bottoms of woven bags of different sizes, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the advantages of being applicable to sewing the bottoms of woven bags of different sizes, the specific technical solution adopted by this utility model is as follows: A sewing device for producing woven bags includes a frame. A sewing machine is installed on the left side of the top surface of the frame, and a conveyor belt is installed on the right side of the top surface of the frame. A support frame welded to the frame is provided around the conveyor belt, and a reduction motor is fixedly installed at the right end of the support frame. A screw is fixed at the output end of the reduction motor, and a threaded sleeve is installed on the surface of the screw. A movable shell is fixed at the bottom of the threaded sleeve, and a buffer block is nested inside the movable shell. Several springs are installed between the movable shell and the buffer block. A notch is opened at the bottom of the buffer block, and a pressure plate is provided below the notch. Several pressure rollers that contact the conveyor belt are installed at the bottom of the pressure plate, and a protrusion is welded to the top surface of the pressure plate. Grooves are opened on both sides of the protrusion of the pressure plate. Two supports are symmetrically arranged on the top surface of the pressure plate about the protrusion, and a swivel knob is threadedly connected to the surface of the two supports. One end of the swivel knob is inserted into the groove of the protrusion.

[0008] Furthermore, a collection box is fixed to the top of the support frame, a fan is installed on the right side wall of the collection box, and a removal pipe is connected to the left side wall of the collection box. A filter cover with a filter screen is installed at the air intake of the fan, and the filter cover is connected to the collection box. A flexible hose is provided on the surface of the removal pipe, and a suction cover is connected to the bottom end of the removal pipe. The suction cover of the removal pipe is set towards the head of the sewing machine.

[0009] Furthermore, a T-shaped slider is fixed to the side of the movable shell, and a T-shaped groove is provided on the inner side of the support frame corresponding to the T-shaped slider. The T-shaped slider is slidably connected to the T-shaped groove of the support frame.

[0010] Furthermore, the lower surface of the support frame is provided with a discharge opening, and the length of the discharge opening is adapted to the width of the conveyor belt.

[0011] Furthermore, several pressure rollers of the pressure plate are tactilely connected to the conveyor belt, and the rolling direction of the pressure rollers corresponds to the conveying direction of the conveyor belt.

[0012] Furthermore, the surface of the collection box is provided with a discharge port, and a sealing plate is provided around the discharge port that is in close contact with the outer wall of the collection box.

[0013] Furthermore, a limiting block is provided at the top of the buffer block, and the limiting block extends into the interior of the movable shell. A through hole communicating with the recess is provided on the lower side of the buffer block.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a bottom-sewing device for woven bag production, which has the following beneficial effects:

[0016] (1) This utility model is provided with a support frame, a reduction motor, a screw, a threaded sleeve, a movable shell, a buffer block, a pressure plate, and a pressure roller. By starting the reduction motor, the screw at its output end is driven to rotate, causing the threaded sleeve to move along the surface of the screw and drive the movable shell to move synchronously. This makes the distance between the pressure plate, which can be detachably installed below the movable shell, and the sewing machine head adjustable. A spring is used to make the pressure roller of the pressure plate elastically press against the woven bag on the conveyor belt. On this basis, by bringing the pressure plate that fits the size of the woven bag close to the movable shell, the protrusion of the pressure plate extends into the recess at the bottom of the buffer block. By rotating the plum blossom knobs screwed on the left and right sides of the pressure plate, the plum blossom knobs extend into the recess and insert into the groove on the side of the protrusion, achieving the effect of conveniently replacing the pressure plate. Compared with the prior art, it not only meets the pressing requirements of the bottom sewing stage of the woven bag, but also has the advantages of easy pressure plate replacement and position adjustment, thus being suitable for the bottom sewing requirements of woven bags of different sizes and ensuring the operating effect of the bottom sewing stage of the woven bag.

[0017] (2) This utility model is equipped with a collection box, a fan, a cleaning pipe, a suction hood, and a filter hood. Since the suction hood installed on the left side wall of the movable shell faces the head of the sewing machine, when the bottom of the woven bag is sewn, the fan of the collection box is started, causing the air inlet of the fan to be drawn out of the collection box through the filter hood. This allows the negative pressure suction pipe formed by the cleaning pipe and the suction hood to adsorb the broken thread ends and woven bag fragments present during the bottom sewing stage of the woven bag. Under the action of the filter hood, the broken thread ends and woven bag fragments are stored in the collection box. With this structure, the cleanliness of the machine frame platform can be improved, eliminating the need for manual cleaning and providing a relatively clean platform for sewing the bottom of the woven bag. On this basis, the cleaning pipe with a flexible hose makes it easy for the suction hood to move flexibly with the movable shell, which is very practical. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a bottom-sewing device for woven bag production according to an embodiment of the present utility model;

[0020] Figure 2 This is a side sectional view of the support frame;

[0021] Figure 3 This is a structural diagram of the movable shell and the pressure plate.

[0022] In the picture:

[0023] 1. Frame; 2. Sewing machine; 3. Support frame; 4. Conveyor belt; 5. Gear motor; 6. Screw; 7. Threaded sleeve; 8. Movable shell; 9. Buffer block; 10. Pressure plate; 11. Pressure roller; 12. Discharge opening; 13. T-shaped chute; 14. Collection box; 15. Fan; 16. Impurity removal pipe; 17. Impurity suction hood; 18. Filter hood; 19. T-shaped slider; 20. Spring; 21. Protrusion; 22. Notch; 23. Support; 24. Groove; 25. Plum blossom knob. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a bottom-sewing device for woven bag production is provided.

[0026] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-3 As shown, a sewing device for woven bag production according to an embodiment of the present invention includes a frame 1. A sewing machine 2 is installed on the left side of the top surface of the frame 1, and a conveyor belt 4 is installed on the right side of the top surface of the frame 1. A support frame 3 welded to the frame 1 is provided around the conveyor belt 4, and a reduction motor 5 is fixedly installed at the right end of the support frame 3. A screw 6 is fixedly installed at the output end of the reduction motor 5, and a threaded sleeve 7 is installed on the surface of the screw 6. A movable shell 8 is fixed at the bottom of the threaded sleeve 7, and a buffer block 9 is nested inside the movable shell 8. Several springs 20 are installed between the movable shell 8 and the buffer block 9. A notch 22 is opened at the bottom of the buffer block 9, and a pressure plate 10 is provided below the notch 22. Several pressure rollers 11 that contact the conveyor belt 4 are installed at the bottom of the pressure plate 10. The top surface of the plate 10 is welded with a protrusion 21, and grooves 24 are provided on both sides of the protrusion 21 of the pressure plate 10. Two supports 23 are symmetrically arranged on the top surface of the pressure plate 10 about the protrusion 21, and the surfaces of the two supports 23 are threaded with a plum blossom knob 25. One end of the plum blossom knob 25 is inserted into the groove 24 of the protrusion 21. The control method of the geared motor 5 and the fan 15 in this utility model is to control them by manually starting and stopping the switch. The wiring diagram of the power components and the power supply are common knowledge in this field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring arrangement will not be explained in detail. The principle of the sewing machine 2 and the conveyor belt 4 is existing known technology and there are mature products. Therefore, their principle will not be explained further.

[0027] In one embodiment, a collection box 14 is fixed to the top of the support frame 3, a fan 15 is installed on the right side wall of the collection box 14, and a removal pipe 16 is connected to the left side wall of the collection box 14. A filter cover 18 with a filter screen is installed at the air intake of the fan 15, and the filter cover 18 is connected to the collection box 14. A flexible hose is provided on the surface of the removal pipe 16, and a suction cover 17 is connected to the bottom end of the removal pipe 16. The suction cover 17 of the removal pipe 16 is positioned facing the head of the sewing machine 2. By starting the collection box 14... When the fan 15 operates, it causes the air intake of the fan 15 to draw out the air from the collection box 14 through the filter cover 18. This causes the negative pressure suction pipeline formed by the removal pipe 16 and the suction cover 17 to adsorb the broken thread ends and woven bag fragments present in the bottom of the woven bag during the sewing process. Under the action of the filter cover 18, the broken thread ends and woven bag fragments are stored in the collection box 14, providing a relatively clean platform for the bottom of the woven bag. On this basis, the removal pipe 16 with a flexible hose can easily move the suction cover 17 with the movable shell 8, making it highly practical.

[0028] In one embodiment, a T-shaped slider 19 is fixed to the side of the movable shell 8, and a T-shaped groove 13 is opened on the inner side of the support frame 3 corresponding to the T-shaped slider 19. The T-shaped slider 19 is slidably connected to the T-shaped groove 13 of the support frame 3. The T-shaped slider 19 and the support frame 3 are set to guide the movable shell 8 and prevent the movable shell 8 from rotating on the screw 6.

[0029] In one embodiment, the lower surface of the support frame 3 is provided with a discharge opening 12, and the length of the discharge opening 12 is adapted to the width of the conveyor belt 4. By setting the discharge opening 12, it is easy to convey woven bags, so as to achieve the effect of feeding woven bags into the sewing machine 2 and discharging them.

[0030] In one embodiment, several pressure rollers 11 of the pressure plate 10 are all tumblingly connected to the conveyor belt 4, and the rolling direction of the several pressure rollers 11 of the pressure plate 10 corresponds to the conveying direction of the conveyor belt 4. The stability of the woven bag bottom sewing stage is increased by the several pressure rollers 11 of the pressure plate 10.

[0031] In one embodiment, the surface of the collection box 14 is provided with a discharge port, and a sealing plate is provided around the discharge port that is in close contact with the outer wall of the collection box 14. By setting the discharge port and the sealing plate, the sealing of the collection box 14 during the working stage is maintained while satisfying the discharge requirement.

[0032] In one embodiment, a limiting block is provided on the top of the buffer block 9, and the limiting block extends into the interior of the movable shell 8. A through hole is provided on the lower side of the buffer block 9, which communicates with the recess 22. The limiting block prevents the buffer block 9 from detaching from the movable shell 8. The through hole facilitates the insertion of the plum blossom knob 25 into the recess 22 to achieve connection with the protrusion 21.

[0033] Working principle: First, the pressure plate 10, which fits the size of the woven bag, is brought close to the movable shell 8, so that the protrusion 21 of the pressure plate 10 extends into the recess 22 at the bottom of the buffer block 9. As the plum blossom knobs 25 screwed on both sides of the pressure plate 10 are rotated, the plum blossom knobs 25 extend into the recess 22 and engage with the grooves 24 on the side of the protrusion 21, thus installing the pressure plate 10. By starting the reduction motor 5, the screw 6 at its output end is driven to rotate, causing the threaded sleeve 7 to move along the surface of the screw 6, which in turn causes the movable shell 8 to move synchronously. This makes the distance between the detachable pressure plate 10 under the movable shell 8 and the sewing machine head 2 adjustable, and the spring 20 is used to make the pressure roller 11 of the pressure plate 10 elastically press against the woven bag on the conveyor belt 4. To improve the stability of the equipment operation during the bottom sewing stage of woven bags, as the sewing machine 2 and the conveyor belt 4 work, the woven bags are sequentially conveyed by the conveyor belt 4 to the head position of the sewing machine 2 to realize the bottom sewing operation of the woven bags. Then, the woven bags with the bottom sewing completed are discharged from the machine frame 1 through the discharge opening 12 of the support frame 3. At the same time, by starting the fan 15 of the dust collection box 14, the air intake of the fan 15 is forced to draw the air out of the dust collection box 14 through the filter cover 18. This causes the negative pressure dust collection pipeline composed of the dust removal pipe 16 and the dust collection cover 17 to adsorb the broken thread ends and woven bag fragments present during the bottom sewing stage of the woven bags. Under the action of the filter cover 18, the broken thread ends and woven bag fragments are stored in the dust collection box 14.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bottom-sewing device for woven bag production, comprising a frame (1), characterized in that, A sewing machine (2) is installed on the left side of the top surface of the frame (1), and a conveyor belt (4) is installed on the right side of the top surface of the frame (1). A support frame (3) welded to the frame (1) is provided around the conveyor belt (4), and a geared motor (5) is fixedly installed at the right end of the support frame (3). A screw (6) is fixed at the output end of the geared motor (5), and a threaded sleeve (7) is installed on the surface of the screw (6). A movable shell (8) is fixed at the bottom of the threaded sleeve (7), and a buffer block (9) is nested inside the movable shell (8). Several springs (20) are installed between the movable shell (8) and the buffer block (9). The bottom of the buffer block (9) is provided with a notch (22), and a pressure plate (10) is provided below the notch (22). Several pressure rollers (11) that are in contact with the conveyor belt (4) are installed on the bottom of the pressure plate (10). A protrusion (21) is welded on the top surface of the pressure plate (10), and grooves (24) are provided on both sides of the protrusion (21) of the pressure plate (10). Two supports (23) are symmetrically arranged on the top surface of the pressure plate (10) about the protrusion (21), and a plum blossom knob (25) is threaded on the surface of the two supports (23). One end of the plum blossom knob (25) is inserted into the groove (24) of the protrusion (21).

2. The bottom-sewing device for woven bag production according to claim 1, characterized in that, The top of the support frame (3) is fixed with a collection box (14), and a fan (15) is installed on the right side wall of the collection box (14). The left side wall of the collection box (14) is connected to a removal pipe (16). A filter cover (18) with a filter screen is installed at the air inlet of the fan (15), and the filter cover (18) is connected to the collection box (14). The surface of the removal pipe (16) is provided with a flexible hose, and the bottom end of the removal pipe (16) is connected to a suction cover (17). The suction cover (17) of the removal pipe (16) is set towards the head of the sewing machine (2).

3. The bottom-sewing device for woven bag production according to claim 1, characterized in that, The side of the movable shell (8) is fixed with a T-shaped slider (19), and the inner side of the support frame (3) is provided with a T-shaped groove (13) corresponding to the T-shaped slider (19). The T-shaped slider (19) is slidably connected to the T-shaped groove (13) of the support frame (3).

4. The bottom-sewing device for woven bag production according to claim 1, characterized in that, The lower surface of the support frame (3) is provided with a discharge opening (12), and the length of the discharge opening (12) is adapted to the width of the conveyor belt (4).

5. The bottom-sewing device for woven bag production according to claim 1, characterized in that, The pressure rollers (11) of the pressure plate (10) are all connected to the conveyor belt (4) in a rolling manner, and the rolling direction of the pressure rollers (11) of the pressure plate (10) corresponds to the conveying direction of the conveyor belt (4).

6. The bottom-sewing device for woven bag production according to claim 2, characterized in that, The surface of the collection box (14) is provided with a discharge port, and a sealing plate is provided around the discharge port that is in close contact with the outer wall of the collection box (14).

7. The bottom-sewing device for woven bag production according to claim 1, characterized in that, The buffer block (9) has a limiting block at its top, and the limiting block extends into the interior of the movable shell (8). The lower side of the buffer block (9) has a through hole that communicates with the recess (22).

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