A positioning fixture for cutting woven bags

Abstract

This utility model provides a positioning fixture for cutting woven bags, including a base with two support plates spaced apart on the base, a clearance groove between the two support plates, a lifting plate and a first drive assembly on the base, a first movable seat and a second drive assembly on the lifting plate, and two second movable seats on the lifting plate, located on opposite sides of the first movable seat along the Y-axis. Each of the second movable seats has a rotatable smoothing roller and a rotatable connecting rod. The smoothing roller's axial direction is aligned with the X-axis, and the smoothing roller is located directly above the support plate, with the two smoothing rollers located on opposite sides of the clearance groove. The end of the connecting rod away from the second movable seat is rotatably connected to the first movable seat. This utility model solves the technical problem of wrinkles forming on the surface of the woven bag after positioning, affecting the flatness of the cut, and achieves the technical effect of smoothing the woven bag before cutting, ensuring a flat cut after cutting.

Description

Technical Field

[0001] This utility model relates to the field of woven bag production technology, and in particular to a positioning fixture for cutting woven bags. Background Technology

[0002] In the production and processing of woven bags, large rolls of material are generally cut into bag pieces of a predetermined size, and then the bag pieces are sewn together to form woven bags. When cutting the large rolls of material, tooling is needed to clamp and secure them.

[0003] Chinese utility model patent CN215792108U discloses a woven bag cutting fixture for easy positioning, including a worktable, a flat plate, connecting plates, and pressure plates. Four pillars are fixed in a rectangular array on the upper surface of the worktable. The tops of the two pillars at the front and back of the upper surface of the worktable are fixed to the sides of the lower surfaces of the two flat plates, respectively. Hydraulic cylinders are fixed to the middle of the sides of the upper surface of the worktable, and hydraulic rods are movably mounted on the tops of the two hydraulic cylinders. The tops of the two hydraulic rods are fixed to the middle of the lower surfaces of the two connecting plates, respectively. Two connecting columns are symmetrically fixed from front to back on the upper surface of the two connecting plates. The tops of the four connecting columns are fixed to the opposite side of the lower surfaces of the four pressure plates. First rubber pads are embedded on opposite sides of the lower surfaces of the four pressure plates. Second rubber pads are embedded on the sides of the upper surfaces of the two flat plates. This fixture, by setting up the flat plate, pressure plates, first rubber pads, and second rubber pads, positions the two sides of the woven bag cutting area, facilitating cutting.

[0004] In the aforementioned utility model patent, the tooling is used such that the woven bag passes between the upper surface of the flat plate and the lower surface of the pressure plate. The hydraulic cylinder is activated, the hydraulic rod moves downward, causing the connecting plate to move downward. The connecting column then moves the pressure plate downward, pressing and positioning the woven bag. At this time, the cutter of the external cutting device moves downward to cut the woven bag. Because the woven bag cannot be guaranteed to be completely flat during transport, it may form wrinkles after passing between the flat plate and the pressure plate and being pressed onto the flat plate. Cutting under these wrinkled conditions will result in uneven cuts, thus negatively impacting the quality of the finished woven bag. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a positioning fixture for cutting woven bags, which solves the problem that wrinkles formed after the woven bag is positioned, affecting the flatness of the cut.

[0006] According to an embodiment of this utility model, a positioning fixture for cutting woven bags includes a base, on which two support plates are spaced apart. A clearance groove is provided between the two support plates, and the length direction of the clearance groove is aligned with the X-axis direction. The base also includes a lifting plate movable along the Z-axis direction and a first drive assembly pulsatingly connected to the lifting plate. The lifting plate includes a first movable seat movable along the X-axis direction and a second drive assembly pulsatingly connected to the first movable seat. The lifting plate also includes two second movable seats movable along the Y-axis direction, located on opposite sides of the first movable seat along the Y-axis direction. Each second movable seat has a rotatable smoothing roller and a rotatable connecting rod. The axial direction of the smoothing roller is aligned with the X-axis direction. The smoothing roller is located directly above the support plate, and the two smoothing rollers are located on opposite sides of the clearance groove. The end of the connecting rod away from the second movable seat is rotatably connected to the first movable seat.

[0007] Furthermore, the base is provided with a vertical guide post, which is located between the base and the support plate, and the lifting plate is provided with a guide hole that cooperates with the guide post.

[0008] Furthermore, the base and the support plate are respectively provided with limiting sleeves, which are respectively sleeved on the guide post.

[0009] Furthermore, the first drive assembly includes a first cylinder and a first piston rod disposed at the output end of the first cylinder. The first cylinder drives the first piston rod to move along the Z-axis direction, and one end of the first piston rod cooperates with the lifting plate.

[0010] Furthermore, the lifting plate is provided with a first dovetail groove, the length direction of the first dovetail groove is consistent with the X-axis direction, and the first movable seat is provided with a first slider that cooperates with the first dovetail groove.

[0011] Furthermore, the second drive assembly includes a second cylinder and a second piston rod disposed at the output end of the second cylinder. The second cylinder drives the second piston rod to move along the Z-axis direction, and one end of the second piston rod engages with the first movable seat.

[0012] Furthermore, the lifting plate is provided with a second dovetail groove, the length direction of the second dovetail groove is consistent with the Y-axis direction, and the second movable seat is provided with a second slider that cooperates with the second dovetail groove.

[0013] Furthermore, the first movable seat and the second movable seat are respectively provided with a vertical first mounting rod, and the two ends of the connecting rod are respectively provided with a first mounting hole that cooperates with the first mounting rod.

[0014] Furthermore, the second movable seat is provided with a detachable second mounting rod, and the smoothing roller is provided with a second mounting hole that mates with the second mounting rod.

[0015] Compared with the prior art, this utility model has the following beneficial effects: By using a support plate for placing the woven bag to be cut, after the woven bag passes through the gap between the smoothing roller and the support plate, the first drive component drives the lifting plate to descend along the Z-axis direction, so that the smoothing roller approaches the support plate until the smoothing roller abuts against the woven bag and presses the woven bag tightly on the support plate to position the woven bag. Then, the second drive component drives the first movable seat to move along the X-axis direction. During the movement of the first movable seat, the connecting rod pushes the second movable seat to move along the Y-axis direction, so that the two smoothing rollers roll on the woven bag to smooth it. At this time, the cutter of the external cutting device moves down along the Z-axis direction and extends into the relief groove to cut the woven bag. This solves the technical problem that wrinkles form on the surface of the woven bag after positioning, affecting the flatness of the cut. It produces the technical effect of smoothing the woven bag before cutting and ensuring that the cut of the woven bag is flat after cutting. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a positioning fixture for cutting woven bags according to an embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional view of a positioning fixture for cutting woven bags according to an embodiment of the present invention;

[0018] Figure 3 This is a partially exploded view of a positioning fixture for cutting woven bags according to an embodiment of the present invention.

[0019] In the above figures: 1. Base; 11. Guide post; 12. Limiting sleeve; 2. Support plate; 21. Alternating groove; 3. Lifting plate; 31. First dovetail groove; 32. Second dovetail groove; 4. First drive assembly; 41. First cylinder; 42. First piston rod; 5. First movable seat; 51. First mounting rod; 6. Second drive assembly; 61. Second cylinder; 62. Second piston rod; 7. Second movable seat; 71. Smoothing roller; 72. Connecting rod; 73. Second mounting rod. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1 to 3 As shown in the figure, this utility model embodiment proposes a positioning fixture for cutting woven bags, which is used to clamp and fix large rolls of woven bag material during the production process of woven bags, so as to cut the large rolls of material into bag pieces of a preset size.

[0022] Please refer to Figure 1and Figure 3 The positioning fixture for cutting woven bags includes a base 1, on which two support plates 2 are spaced apart. The support plates 2 are used to place the woven bags to be cut. A clearance groove 21 is provided between the two support plates 2, and the length direction of the clearance groove 21 is aligned with the X-axis direction. The clearance groove 21 is used to avoid the blades of an external cutting device. The base 1 also has a lifting plate 3 movable along the Z-axis and a first drive assembly 4 connected to the lifting plate 3. The lifting plate 3 has a first movable seat 5 movable along the X-axis and a second drive assembly 6 connected to the first movable seat 5. The lifting plate 3 also has two second movable seats 7 movable along the Y-axis, with the two second movable seats 7 located on opposite sides of the first movable seat 5 along the Y-axis direction. Each of the second movable seats 7 has a rotatable smoothing roller 71 and a rotatable connecting rod 72. The axial direction of the flat roller 71 is aligned with the X-axis direction. The smoothing roller 71 is located directly above the support plate 2, and the two smoothing rollers 71 are located on opposite sides of the clearance groove 21. When the lifting plate 3 moves along the Z-axis direction under the drive of the first drive assembly 4, the smoothing roller 71 moves closer to or away from the support plate 2, so that the smoothing roller 71 abuts against the woven bag placed on the support plate 2 and presses the woven bag onto the support plate 2. The end of the connecting rod 72 away from the second movable seat 7 is rotatably connected to the first movable seat 5, so that when the first movable seat 5 moves along the X-axis direction under the drive of the second drive assembly 6, the connecting rod 72 drives the two second movable seats 7 to move along the Y-axis direction respectively, and the two second movable seats 7 move closer to or away from the clearance groove 21 at the same time, so that the wrinkles on the woven bag are smoothed by the rolling of the smoothing roller 71 on the surface of the woven bag.

[0023] Specifically, the operation steps for clamping and fixing the woven bag using the positioning fixture for cutting woven bags provided in this embodiment are as follows: the woven bag to be cut is passed through the gap between the smoothing roller 71 and the support plate 2; the first driving component 4 drives the lifting plate 3 to descend along the Z-axis direction, bringing the smoothing roller 71 closer to the support plate 2 until the smoothing roller 71 abuts against the woven bag and presses the woven bag firmly onto the support plate 2; then, the second driving component 6 drives the first movable seat 5 to move along the X-axis direction. The process of the first movable seat 5 moving... The connecting rod 72 pushes the two second movable seats 7 away from the avoidance groove 21 along the Y-axis, causing the two smoothing rollers 71 to roll on the woven bag to smooth it out. At this time, the cutter of the external cutting device moves down along the Z-axis and extends into the avoidance groove 21 to cut the woven bag. After cutting, the cutter of the external cutting device exits the avoidance groove 21, and the first driving component 4 drives the lifting plate 3 to rise along the Z-axis, causing the smoothing rollers 71 to move away from the support plate 2, so that the cut woven bag can be removed. The positioning fixture for cutting woven bags provided in this embodiment can smooth out the wrinkles of the woven bag before cutting, ensuring that the cut of the woven bag is flat, which is beneficial to improving the quality of the woven bag product, and is simple and convenient to operate.

[0024] like Figure 1 and Figure 2 As shown, the base 1 is provided with a vertical guide post 11, which is located between the base 1 and the support plate 2. The lifting plate 3 is provided with a guide hole that cooperates with the guide post 11. The guide post 11 on the base 1 and the guide hole on the lifting plate 3 are provided to limit the movement direction of the lifting plate 3, prevent the lifting plate 3 from deviating from the preset direction or producing unexpected deflection, and improve the structural stability of the positioning fixture for cutting woven bags.

[0025] In this embodiment, limiting sleeves 12 are respectively provided on the base 1 and the support plate 2, and the limiting sleeves 12 are respectively sleeved on the guide post 11. The limiting sleeves 12 are used to cooperate with the guide post 11 to install the lifting plate 3 and the support plate 2 onto the base 1, and the movement of the lifting plate 3 between the base 1 and the support plate 2 is limited by the contact between the limiting sleeves 12 and the lifting plate 3, so as to avoid the first movable seat 5 and / or the second movable seat 7 colliding with the support plate 2 during the movement of the lifting plate 3.

[0026] like Figure 2As shown, the first drive assembly 4 includes a first cylinder 41 and a first piston rod 42 disposed at the output end of the first cylinder 41. The first cylinder 41 drives the first piston rod 42 to move along the Z-axis, and one end of the first piston rod 42 engages with the lifting plate 3. By driving the first piston rod 42 to extend or retract from the first cylinder 41, the lifting plate 3 can be moved by the movement of the first piston rod 42. When the first piston rod 42 extends from the first cylinder 41, the lifting plate 3 rises along the Z-axis, and when the first piston rod 42 retracts from the first cylinder 41, the lifting plate 3 descends along the Z-axis, so as to control the relative position of the smoothing roller 71 and the support plate 2.

[0027] Please combine Figure 2 and Figure 3 The lifting plate 3 is provided with a first dovetail groove 31, the length direction of the first dovetail groove 31 is consistent with the X-axis direction, and the first movable seat 5 is provided with a first slider that cooperates with the first dovetail groove 31. The first movable seat 5 is installed on the lifting plate 3 through the cooperation of the first slider and the first dovetail groove 31, so that the first movable seat 5 can move along the X-axis direction on the lifting plate 3, ensuring the stable cooperation between the first movable seat 5 and the lifting plate 3.

[0028] In detail, the second drive assembly 6 includes a second cylinder 61 and a second piston rod 62 disposed at the output end of the second cylinder 61. The second cylinder 61 drives the second piston rod 62 to move along the Z-axis, and one end of the second piston rod 62 engages with the first movable seat 5. By using the second cylinder 61 to drive the second piston rod 62 to extend or retract, the movement of the second piston rod 62 can drive the first movable seat 5 to move. When the second piston rod 62 extends from the second cylinder 61, the two second movable seats 7 move away from the relief groove 21 as the first movable seat 5 moves. At this time, the smoothing roller 71 rolls on the woven bag and smooths it. When the second piston rod 62 retracts from the second cylinder 61, the two second movable seats 7 move closer to the relief groove 21 as the first movable seat 5 moves. At this time, the two smoothing rollers 71 are reset. That is, the movement of the smoothing roller 71 can be easily controlled by the second cylinder 61.

[0029] In this embodiment, the base 1 is further provided with a controller and a plurality of sensors electrically connected to the controller. The first drive assembly 4 and the second drive assembly 6 are electrically connected to the controller. The sensors are spaced apart on the base 1 and the support plate 2. The sensors are used to sense the position of the lifting plate 3 and the position of the smoothing roller 71, so as to facilitate the smoothing and positioning of the woven bag by operating the first drive assembly 4 and the second drive assembly 6 through the controller. The sensors can be photoelectric sensors, vision sensors or laser sensors.

[0030] like Figure 3 As shown, the lifting plate 3 is provided with a second dovetail groove 32, the length direction of the second dovetail groove 32 is consistent with the Y-axis direction, and the second movable seat 7 is provided with a second slider that cooperates with the second dovetail groove 32. By providing the second dovetail groove 32 on the lifting plate 3 and the second slider that cooperates with the second dovetail groove 32 on the second movable seat 7, the second movable seat 7 is installed on the lifting plate 3, allowing it to move along the Y-axis direction on the lifting plate 3. The movement direction of the second movable seat 7 is restricted to prevent it from deviating from the preset direction during movement, thereby improving the reliability of the positioning fixture for cutting woven bags.

[0031] Please refer to Figure 3 The first movable seat 5 and the second movable seat 7 are each provided with a vertical first mounting rod 51, and the two ends of the connecting rod 72 are respectively provided with first mounting holes that cooperate with the first mounting rod 51. The connecting rod 72 achieves a rotatable connection with the first movable seat 5 and the second movable seat 7 through the cooperation of the first mounting holes with the first mounting rod 51, ensuring that the power output by the second driving component 6 can be smoothly transmitted to the second movable seat 7 when the first movable seat 5 moves under the drive of the second driving component 6.

[0032] In this embodiment, the second movable seat 7 is provided with a detachable second mounting rod 73, and the smoothing roller 71 is provided with a second mounting hole that mates with the second mounting rod 73. By passing the second mounting rod 73 through the second mounting hole on the smoothing roller 71 and engaging it with the second movable seat 7, the smoothing roller 71 can be installed onto the second movable seat 7, allowing the smoothing roller 71 to rotate smoothly on the second movable seat 7. This ensures stable operation of the positioning fixture for cutting woven bags while facilitating maintenance and replacement of the smoothing roller 71.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A positioning tool for cutting a woven bag, characterized by: The device includes a base with two support plates spaced apart. A clearance groove exists between the two support plates, with the length of the clearance groove aligned with the X-axis. The base also includes a lifting plate movable along the Z-axis and a first drive assembly connected to the lifting plate. The lifting plate has a first movable seat movable along the X-axis and a second drive assembly connected to the first movable seat. The lifting plate also has two second movable seats movable along the Y-axis, located on opposite sides of the first movable seat along the Y-axis. Each second movable seat has a rotatable smoothing roller and a rotatable connecting rod. The smoothing roller's axial direction is aligned with the X-axis. The smoothing roller is located directly above the support plate, with the two smoothing rollers located on opposite sides of the clearance groove. The end of the connecting rod furthest from the second movable seat is rotatably connected to the first movable seat.

2. The positioning fixture for cutting woven bags as described in claim 1, characterized in that: The base is provided with a vertical guide post, which is located between the base and the support plate, and the lifting plate is provided with a guide hole that cooperates with the guide post.

3. The positioning fixture for cutting woven bags as described in claim 2, characterized in that: The base and the support plate are respectively provided with limiting sleeves, which are respectively sleeved on the guide posts.

4. The positioning fixture for cutting woven bags as described in claim 1, characterized in that: The first drive assembly includes a first cylinder and a first piston rod disposed at the output end of the first cylinder. The first cylinder drives the first piston rod to move along the Z-axis direction, and one end of the first piston rod cooperates with the lifting plate.

5. The positioning fixture for cutting woven bags as described in claim 1, characterized in that: The lifting plate is provided with a first dovetail groove, the length direction of the first dovetail groove is consistent with the X-axis direction, and the first movable seat is provided with a first slider that cooperates with the first dovetail groove.

6. The positioning fixture for cutting woven bags as described in claim 1, characterized in that: The second drive assembly includes a second cylinder and a second piston rod disposed at the output end of the second cylinder. The second cylinder drives the second piston rod to move along the Z-axis direction, and one end of the second piston rod cooperates with the first movable seat.

7. The positioning fixture for cutting woven bags as described in claim 1, characterized in that: The lifting plate is provided with a second dovetail groove, the length direction of the second dovetail groove is consistent with the Y-axis direction, and the second movable seat is provided with a second slider that cooperates with the second dovetail groove.

8. The positioning fixture for cutting woven bags as described in claim 1, characterized in that: The first movable seat and the second movable seat are respectively provided with a vertical first mounting rod, and the two ends of the connecting rod are respectively provided with a first mounting hole that mates with the first mounting rod.

9. A positioning fixture for cutting woven bags as described in claim 1, characterized in that: The second movable seat is provided with a detachable second mounting rod, and the smoothing roller is provided with a second mounting hole that mates with the second mounting rod.

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