Cutting device for woven bag processing

Abstract

The utility model relates to the field of cutting equipment, in particular to a cutting device for woven bag processing, which is characterized in that a conveying mechanism is arranged on a rack, a support plate and a movable plate are sequentially arranged on the rack at the downstream of the conveying mechanism, the support plate is fixedly mounted on the rack, a cutting component is arranged on the support plate, and a pressing component is arranged on the movable plate; the movable plate is installed on the rack in a sliding mode, the rack is provided with a tensioning spring used for pushing the movable plate to slide in the direction away from the supporting plate, a metal block is fixedly installed on the movable plate, and an electromagnet used for attracting the metal block is fixedly installed on the supporting plate; a woven bag located on the downstream of the cutting assembly is pressed and fixed to a movable plate through the pressing assembly, then an electromagnet is powered off, then a tensioning spring in a compressed state is released and pushes the movable plate to slide forwards in the direction away from a supporting plate, and the woven bag is tensioned and tightly supported forwards through the movable plate; therefore, the woven bag located below the cutting assembly is prevented from being loosened or wrinkled.

Description

Technical Field

[0001] The utility model relates to the field of cutting equipment, in particular to a cutting device for woven bag processing. Background Art

[0002] During the production of woven bags, continuous woven bags need to be cut into sections and then sealed.

[0003] In the prior art, the utility model patent with the application number CN201920516483.9 discloses a special cutting machine for plastic weaving, which includes a frame, a conveying device, a gantry bracket, a cutting cylinder and a pressing plate, and also includes a left pressing device and a right pressing device. The left pressing device includes four groups of left columns, a left support plate, a left pressing plate, multiple groups of left support rods, multiple groups of left springs and a left pressing column. The right pressing device includes four groups of right columns, a right support plate, a right pressing plate, multiple groups of right support rods, multiple groups of right springs and a right pressing column. The top of the frame is provided with a left strip groove, a right strip groove and a cutting hole in the front-back direction, which can effectively fix the cutting position and avoid or slow down the stretching of the woven bag when cutting the woven bag.

[0004] However, the above cutting machine can only fix the woven bag at the cutting position through the left pressing device and the right pressing device, and cannot effectively tension the woven bag between the left pressing device and the right pressing device, resulting in a reduction in the cutting accuracy of the woven bag. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a cutting device for woven bag processing, which can effectively tension the woven bag during cutting to solve the defects mentioned in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cutting device for woven bag processing includes a frame. A conveying mechanism for driving the movement of the woven bag is provided on the frame. A support plate and a movable plate are successively arranged on the frame downstream of the conveying mechanism. The woven bag output by the conveying mechanism is unfolded on the tops of the support plate and the movable plate in sequence. The support plate is fixedly installed on the frame, and a cutting assembly for cutting the woven bag is provided on the support plate. A pressing assembly for pressing the woven bag is provided on the movable plate. The movable plate is slidably installed on the frame. A tension spring for pushing the movable plate to slide in a direction away from the support plate is provided on the frame. A metal block is fixedly installed on the movable plate, and an electromagnet for adsorbing the metal block is fixedly installed on the support plate. The electromagnet adsorbs the metal block and drives the movable plate to slide in a direction close to the support plate.

[0008] As a preferred technical solution, one end of the support plate away from the conveying mechanism is inclined downward; the top of the movable plate and the top of the support plate are in the same plane.

[0009] As a preferred technical solution, the cutting assembly includes a lifting plate driven by a first cylinder and moving along the normal direction of the support plate. A cutting knife is fixedly installed at the bottom of the lifting plate, and an avoidance groove matching the cutting knife is provided on the support plate.

[0010] As a preferred technical solution, a holding plate for pressing both sides of the cut portion of the woven bag is provided below the lifting plate. The holding plate is arranged parallel to the support plate. A connecting column extending along the normal direction of the support plate is fixedly installed at the top of the holding plate. The connecting column is slidably installed on the lifting plate. A stop block is fixedly installed at the upper end of the connecting column, and a compression spring is sleeved on the connecting column between the lifting plate and the holding plate.

[0011] As a preferred technical solution, the pressing assembly includes a pressing plate driven by a second cylinder and moving along the normal direction of the movable plate. An anti-slip pad is provided at the bottom of the pressing plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The pressing assembly presses and fixes the woven bag downstream of the cutting assembly on the movable plate, then cuts off the power supply of the electromagnet, and then the tension spring in the compressed state is released and pushes the movable plate to slide forward away from the support plate, and the woven bag is stretched and tightened forward through the movable plate, so as to avoid the slack or wrinkles of the woven bag below the cutting assembly and improve the cutting accuracy of the woven bag;

[0014] When the first cylinder drives the lifting plate and the cutting knife to descend for cutting, the holding plate first descends to contact the woven bag on the top of the support plate and elastically presses the woven bag, and then the cutting knife descends through the strip-shaped hole on the holding plate to cut the woven bag, which can reduce the deformation amount of the cut portion of the woven bag and further improve the cutting accuracy of the woven bag. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0017] Figure 2 is a schematic structural view of the bottom of the movable plate in an embodiment of the present utility model;

[0018] Figure 3 is Figure 1 a cross-sectional schematic view of;

[0019] Figure 4 is a schematic structural view of the cutting assembly in an embodiment of the present utility model;

[0020] Figure 5 is a schematic structural view of the pressing assembly in an embodiment of the present utility model.

[0021] In the figure: 1-frame; 2-vertical plate; 3-lower roller; 4-driving motor; 5-upper roller; 6-sliding seat; 7-screw rod; 8-supporting plate; 9-movable plate; 10-side plate; 11-guiding rod; 12-fixed seat; 13-tension spring; 14-metal block; 15-electromagnet; 16-first cylinder; 17-lifting plate; 18-vertical column; 19-top plate; 20-cutting knife; 21-holding plate; 22-connecting column; 23-stop block; 24-second cylinder; 25-pressing plate; 26-column; 27-cross plate; 28-sliding block; 29-pressing spring. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 5 shown, a cutting device for processing woven bags includes a frame 1, and a conveying mechanism for driving the movement of the woven bag is provided on the frame 1. Specifically, two relatively arranged vertical plates 2 are fixedly installed on the top of the frame 1 by bolts, and a horizontally extending lower roller 3 is rotatably installed between the two vertical plates 2, and one end of the lower roller 3 is connected to a driving motor 4; an upper roller 5 parallel to the lower roller 3 is provided above the lower roller 3, and sliding seats 6 are respectively rotatably installed at the left and right ends of the upper roller 5, and corresponding chutes matching the sliding seats 6 are respectively provided on the left and right vertical plates 2, and the sliding seats 6 are vertically slidably installed in the corresponding chutes, and a vertically extending screw rod 7 is rotatably installed at the top of the sliding seat 6 through a bearing, and the screw rod 7 is threadedly connected to the vertical plate 2. During specific use, one end of the woven bag is passed backward through between the lower roller 3 and the upper roller 5, and then the screw rod 7 is rotated in a specific direction to drive the sliding seat 6 and the upper roller 5 to move downward, and the woven bag is pressed by the lower roller 3 and the upper roller 5, and then the driving motor 4 is used to drive the lower roller 3 to rotate to convey the woven bag backward.

[0024] As Figure 3 shown, a support plate 8 and a movable plate 9 are successively provided on the frame 1 downstream of the conveying mechanism. The woven bags output by the conveying mechanism are successively unfolded at the tops of the support plate 8 and the movable plate 9. When the driving motor 4 drives the lower roller 3 to rotate, the woven bags are driven to move forward along the support plate 8 and the movable plate 9. In addition, in order to prevent the woven bags from stacking and wrinkling at the tops of the support plate 8 and the movable plate 9, one end of the support plate 8 away from the conveying mechanism is inclined downward, and the top of the movable plate 9 is in the same plane as the top of the support plate 8, which is beneficial to the woven bags sliding downward along the support plate 8 and the movable plate 9 under the action of gravity after passing through the lower roller 3 and the upper roller 5 and being unfolded and flattened.

[0025] At the top of the frame 1 on the front side of the vertical plate 2, two side plates 10 arranged oppositely left and right are fixedly installed by bolts. The support plate 8 is fixedly installed between the two side plates 10 by bolts. A cutting assembly for cutting the woven bags is provided on the support plate 8.

[0026] A pressing assembly for pressing the woven bags is provided on the movable plate 9. As Figure 2 shown, the movable plate 9 is slidably installed between the two side plates 10. Two guide rods 11 arranged oppositely left and right are provided below the movable plate 9. The guide rods 11 are parallel to the direction in which the woven bags slide along the movable plate 9. The front and rear ends of the guide rods 11 are respectively fixedly installed with fixing seats 12 by bolts. The fixing seats 12 are fixedly installed on the inner sides of the corresponding side plates 10 by bolts. The bottom of the movable plate 9 is fixedly installed with sliding seats 28 corresponding to the guide rods 11 one by one, thereby providing support and guidance for the movable plate 9. A tension spring 13 for pushing the movable plate 9 to slide obliquely forward and away from the support plate 8 is sleeved on the guide rods 11. One end of the tension spring 13 abuts against the sliding seat 28, and the other end abuts against the fixing seat 12 on the side close to the support plate 8; a metal block 14 is fixedly installed at the bottom of one end of the movable plate 9 close to the support plate 8, and an electromagnet 15 for adsorbing the metal block 14 is fixedly installed at the bottom of one end of the support plate 8 close to the movable plate 9. The electromagnet 15 adsorbs the metal block 14 and drives the movable plate 9 to slide obliquely backward and close to the support plate 8.

[0027] During specific use, first, the electromagnet 15 is powered on. The electromagnet 15 adsorbs the metal block 14 and drives the movable plate 9 to slide backward in the direction close to the support plate 8, so that the rear end of the movable plate 9 is in contact with the front end of the support plate 8. At the same time, the tension spring 13 is compressed. The driving motor 4 drives the lower roller 3 to rotate and drives the woven bag to move forward along the support plate 8 and the movable plate 9. When the woven bag located downstream of the cutting assembly reaches the cutting length, the driving motor 4 and the lower roller 3 stop rotating. Since the woven bag is pressed by the lower roller 3 and the upper roller 5, the lower roller 3 and the upper roller 5 play a role in fixing the woven bag located upstream of the cutting assembly. The pressing assembly presses and fixes the woven bag located downstream of the cutting assembly on the movable plate 9. Then, the electromagnet 15 is powered off. Furthermore, the compressed tension spring 13 is released and pushes the movable plate 9 to slide forward in the direction away from the support plate 8, and the woven bag is tensioned forward by the movable plate 9, thus avoiding the slack or wrinkles of the woven bag located below the cutting assembly and improving the cutting accuracy of the woven bag.

[0028] As Figure 3 and Figure 4 shown, the cutting assembly includes a lifting plate 17 driven by a first cylinder 16 and moving along the normal direction of the support plate 8. Four vertical columns 18 distributed in a rectangular array are fixedly installed on the top of the support plate 8 by bolts. The vertical columns 18 extend along the normal direction of the support plate 8. The upper ends of the four vertical columns 18 are fixedly installed with a top plate 19 by bolts. The cylinder body of the first cylinder 16 is fixedly installed on the top plate 19 by bolts. The piston rod of the first cylinder 16 extends obliquely downward along the normal direction of the support plate 8. The lifting plate 17 is fixedly installed on the piston rod of the first cylinder 16, and the lifting plate 17 is slidably connected with the four vertical columns 18. The lifting plate 17 is arranged parallel to the support plate 8. A cutting knife 20 is fixedly installed at the bottom of the lifting plate 17, and an avoidance groove matching the cutting knife 20 is provided on the support plate 8. After the movable plate 9 tensiones the woven bag forward, the first cylinder 16 extends to drive the lifting plate 17 and the cutting knife 20 to descend until the cutting knife 20 enters the avoidance groove to cut the woven bag on the top of the support plate 8.

[0029] Below the lifting plate 17, there is a holding plate 21 for pressing both sides of the cut part of the woven bag. The holding plate 21 is arranged parallel to the support plate 8. A strip-shaped hole for the cutting knife 20 to pass through is provided on the holding plate 21. Four corners of the top of the holding plate 21 are respectively fixedly installed with connecting columns 22 extending along the normal direction of the support plate 8. The lower ends of the connecting columns 22 are provided with external threads and are screwed on the holding plate 21. The connecting columns 22 are slidably installed on the lifting plate 17. A stop block 23 is integrally formed at the upper end of the connecting column 22 to prevent the connecting column 22 from disengaging downward from the lifting plate 17. A pressing spring 29 is sleeved on the connecting column 22 between the lifting plate 17 and the holding plate 21.

[0030] When there is no external force, the compression spring 29 pushes the holding plate 21 down to the lowest point and makes the stopper 23 at the upper end of the connecting column 22 abut against the top of the lifting plate 17. At this time, the cutting knife 20 is located above the holding plate 21. When the first cylinder 16 drives the lifting plate 17 and the cutting knife 20 to descend for cutting, the holding plate 21 first descends to contact the woven bag on the top of the support plate 8 and elastically presses the woven bag. Subsequently, the cutting knife 20 descends downward through the strip hole on the holding plate 21 to cut the woven bag, which can reduce the deformation amount at the cut part of the woven bag and further improve the cutting accuracy of the woven bag.

[0031] As Figure 3 and Figure 5 shown, the pressing assembly includes a pressing plate 25 driven by a second cylinder 24 and moving along the normal direction of the movable plate 9. Two upright columns 26 arranged oppositely left and right are fixedly installed on the top of the movable plate 9 through bolts. The upright columns 26 extend along the normal direction of the movable plate 9. The upper ends of the two upright columns 26 are fixedly installed with a cross plate 27 through bolts. The cylinder block of the second cylinder 24 is fixedly installed on the cross plate 27 through bolts. The piston rod of the second cylinder 24 extends obliquely downward along the normal direction of the movable plate 9. The pressing plate 25 is fixedly installed on the piston rod of the second cylinder 24 through bolts, and the pressing plate 25 is slidably connected with the two upright columns 26. An anti-slip pad is provided at the bottom of the pressing plate 25. The pressing plate 25 is arranged parallel to the movable plate 9. When the woven bag located downstream of the cutting assembly reaches the cutting length, the second cylinder 24 extends to drive the pressing plate 25 downward to press the woven bag located on the top of the movable plate 9.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for woven bag processing, characterized in that: The machine comprises a frame, on which a conveying mechanism for driving the woven bag to move is provided, and on the frame located downstream of the conveying mechanism are sequentially provided with a support plate and a movable plate, and the woven bag output by the conveying mechanism is sequentially unfolded through the support plate and the top of the movable plate; the support plate is fixedly mounted on the frame, and a cutting assembly for cutting the woven bag is provided on the support plate; a pressing assembly for pressing the woven bag is provided on the movable plate, and the movable plate is slidably mounted on the frame, and a tensioning spring for pushing the movable plate to slide in a direction away from the support plate is provided on the frame, a metal block is fixedly mounted on the movable plate, and an electromagnet for adsorbing the metal block is fixedly mounted on the support plate, and the electromagnet adsorbs the metal block and drives the movable plate to slide in a direction close to the support plate.

2. A cutting device for woven bag processing as claimed in claim 1, characterized in that: One end of the support plate away from the conveying mechanism is tilted downward; the top of the movable plate and the top of the support plate are located in the same plane.

3. A cutting device for woven bag processing as claimed in claim 1, characterized in that: The cutting assembly comprises a lifting plate driven by a first cylinder and moving along the normal direction of the support plate, a cutting knife is fixedly mounted on the bottom of the lifting plate, and an avoidance groove matching the cutting knife is provided on the support plate.

4. A cutting device for woven bag processing as claimed in claim 3, characterized in that: A holding plate for pressing down both sides of the cut portion of the woven bag is provided below the lifting plate, the holding plate is arranged parallel to the support plate, a connecting column extending along the normal direction of the support plate is fixedly mounted on the top of the holding plate, the connecting column is slidably mounted on the lifting plate, a stopper is fixedly mounted on the upper end of the connecting column, and a compression spring is sleeved on the connecting column located between the lifting plate and the holding plate.

5. A cutting device for woven bag processing as claimed in claim 1, characterized in that: The pressing assembly comprises a pressing plate which is driven by a second cylinder and moves along the normal direction of the movable plate, and an anti-skid pad is arranged at the bottom of the pressing plate.

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