Flattening device for woven bags

Abstract

The flattening device for the woven bag comprises an operation table and supporting legs, the supporting legs are fixedly connected to the four corners of the lower end face of the operation table, a fixing mechanism and a movable flattening mechanism are arranged on the operation table, the fixing mechanism comprises a fixing assembly and a transmission assembly, and the fixing assembly comprises a pressing plate moving groove. The pressing plate moving grooves are symmetrically formed in the upper end face of the operation table, third lead screws are rotationally connected into the pressing plate moving grooves, lead screw sliding blocks are connected to the third lead screws in a threaded fit mode, electromagnets are fixedly connected to the upper end faces of the lead screw sliding blocks, springs are arranged on the peripheries of the electromagnets in a sleeving mode, and the lead screw sliding blocks are connected with pressing plates through the springs. The lower end face of the pressing plate is fixedly connected with a magnet matched with the electromagnet for magnetic attraction, the transmission assembly is used for driving the third lead screw to rotate, and the movable flattening mechanism is used for flattening the woven bags. According to the woven bag fixing and flattening device, the distance between the pressing plates can be adjusted, the pressing plates are tightly pressed on the operation table in a magnetic attraction mode, woven bags are fixed, and the woven bag fixing and flattening efficiency is improved.

Description

Technical Field

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

[0002] Woven bags, widely used in agriculture, chemicals, and building materials, require a flattening process during production to eliminate wrinkles and ensure the quality of subsequent printing, stacking, and packaging. Woven bags come in various sizes to meet production needs. Existing flattening devices either cannot dynamically adjust the clamping distance according to the actual size of the woven bag, or, as described in Chinese patent application 2023234904649, involve manually adjusting the clamping distance of the woven bag using a knob. This requires manual adjustment and locking of each side, which is not only cumbersome and time-consuming but also makes it difficult to ensure the symmetry of the clamping force on both sides, easily causing the woven bag to shift or experience uneven stress, thus compromising the flattening quality. Therefore, designing a flattening device that can automatically adjust the clamping distance according to the woven bag's size is of great significance for improving the production quality and efficiency of woven bags. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned problems by providing a flattening device for woven bags, which can adjust the fixed spacing according to the size of the woven bag without the need for manual knobs, thereby improving the flexibility of the device and the flattening efficiency of the woven bags.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A woven bag flattening device includes an operating table and support legs. The support legs are fixedly connected to the four corners of the lower end face of the operating table. The operating table is provided with a fixing mechanism and a moving flattening mechanism. The fixing mechanism includes a fixing component and a transmission component. The fixing component includes a pressure plate moving groove, which is symmetrically opened on the upper end face of the operating table. A third lead screw is rotatably connected in the pressure plate moving groove. A lead screw slider is threadedly connected to the third lead screw. An electromagnet is fixedly connected to the upper end face of the lead screw slider. A spring is sleeved on the outer periphery of the electromagnet. The lead screw slider is connected to the pressure plate through the spring. A magnet that magnetically attracts the electromagnet is fixedly connected to the lower end face of the pressure plate. The transmission component is used to drive the third lead screw to rotate. The moving flattening mechanism is used for flattening woven bags.

[0006] Furthermore, the transmission assembly includes a motor housing fixedly connected to the lower end face of the operating table. A third motor is fixedly connected inside the motor housing, and a first bevel gear is fixedly fitted onto the output end of the third motor. One end of the third lead screw passes through the pressure plate moving groove and is fixedly fitted with a second bevel gear, which meshes with the first bevel gear. By starting the third motor, the third lead screws on both sides are simultaneously driven to rotate, causing the lead screw sliders on both sides to move the pressure plates on both sides relative to or in opposite directions, thereby adjusting the distance between the pressure plates on both sides according to the size of the woven bag.

[0007] Furthermore, the movable flattening mechanism includes a lifting component, a lateral moving component, and a flattening component. The lifting component is fixedly connected to the upper surface of the operating table, the lateral moving component is movably connected to the lifting component, and the flattening component is movably connected to the lateral moving component. The lifting component can drive the lateral moving component and the flattening component to move horizontally downwards, and the lateral moving component can drive the flattening component to move laterally left and right, thereby flattening the woven bag.

[0008] Furthermore, the lifting assembly includes two lifting frames fixedly connected to the longitudinal sides of the upper end face of the operating table. Each of the two lifting frames has a lifting groove on its opposite side. A first lead screw and a first motor are installed in the lifting groove. One end of the first lead screw is rotatably connected to the top of the lifting groove, and the other end of the first lead screw is connected to the output end of the first motor. The mounting end of the first motor is fixedly connected to the bottom of the lifting groove.

[0009] Furthermore, the transverse movement assembly includes a transverse movement frame, with both ends of the transverse movement frame threadedly connected to the first lead screws on both sides. Two transverse movement grooves are symmetrically opened at the bottom of the transverse movement frame. A second lead screw and a second motor are disposed in the transverse movement grooves. One end of the second lead screw is rotatably connected to one side of the transverse movement groove, and the other end of the second lead screw is connected to the output end of the second motor. The mounting end of the second motor is fixedly connected to the other side of the transverse movement groove.

[0010] Furthermore, the flattening assembly comprises two sets, each set corresponding to one of the two transverse grooves. Each flattening assembly includes a pressure roller mounting frame, the top of which is threadedly connected to a first lead screw. Pressure rollers are rotatably connected to the mounting frame, and the two pressure rollers move in opposite directions. By simultaneously moving from the center to both sides and rolling into contact with the woven bag, the woven bag is flattened, improving both the flattening effect and efficiency.

[0011] Furthermore, the upper surface of the operating table is symmetrically provided with a pressure plate limiting groove at its edge, and the lower surface of the pressure plate is fixedly connected with a limiting block that is movably embedded in the pressure plate limiting groove. When the pressure plate moves, the limiting block slides in the pressure plate limiting groove to prevent it from shifting when the pressure plate moves.

[0012] Furthermore, a heating plate is laid on the upper surface of the operating table, and heating resistance wires for heat generation are laid inside the heating plate.

[0013] Furthermore, it also includes a control system and a control switch. The control system is electrically connected to the fixed mechanism, the moving flattening mechanism, the heating resistance wire, and the control switch, respectively. It is used to control the operation of the moving flattening mechanism and the heating resistance wire, and to receive the switch signal from the control switch to control the operation of the fixed mechanism. The control switch is fixedly installed on the front side of the operating table. The control switch includes switch one, switch two, and switch three. Switch one and switch two are used to control the forward and reverse rotation of the third motor, respectively, and switch three is used to control the electromagnet to be energized or de-energized.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects:

[0015] 1. This utility model can adjust the spacing of the pressure plates of the fixing mechanism according to different sizes of woven bags, and use magnetic attraction to make the pressure plates press tightly against the operating table to fix the woven bags without the need for manual tightening of the knobs, thus improving the fixing efficiency of woven bags; and through the moving flattening mechanism, the pressure roller can move up and down and left and right to roll and flatten the woven bags.

[0016] 2. This utility model, through heat treatment with an overheating plate and physical flattening with a pressure roller, can better shape the woven bag after heating, further improving the flattening quality of the woven bag.

[0017] 3. By adding a control system and control switch, this utility model makes the adjustment of the pressure plate spacing and the control of the magnetic fixation of the pressure plate quicker and more convenient, eliminating the need for manual knob adjustment, thus improving the flexibility of the device adjustment and greatly improving the flattening efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is the utility model Figure 1 The right view.

[0020] Figure 3 This is the utility model Figure 2 Sectional view at point AA.

[0021] Figure 4 This is the utility model Figure 2 Sectional view at BB.

[0022] Figure 5 This is the utility model Figure 3 Enlarged view at point C

[0023] In the attached diagram, the components are: operating table 1, fixing mechanism 2, pressure plate moving groove 21, third lead screw 22, lead screw slider 23, spring 24, pressure plate 25, electromagnet 26, magnet 27, motor box 28, third motor 29, first bevel gear 210, second bevel gear 211, pressure plate limiting groove 213, limiting block 214, moving pressing and flattening mechanism 3, lifting frame 31, first lead screw 32, first motor 33, transverse frame 34, second lead screw 35, second motor 36, pressure roller mounting frame 37, pressure roller 38, heating plate 4, control switch 5, switch one 51, switch two 52, and switch three 53. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] See Figures 1-5 This embodiment of a woven bag flattening device includes an operating platform 1, a control system, and a control switch 5. Support legs are fixedly connected to the four corners of the lower end face of the operating platform 1. A fixing mechanism 2 and a movable flattening mechanism 3 are provided on the operating platform 1. The fixing mechanism 2 includes a fixing component and a transmission component, the transmission component driving the fixing component. The movable flattening mechanism 3 is used for flattening the woven bag. The control system is electrically connected to the fixing mechanism 2, the movable flattening mechanism 3, and the control switch 5, respectively. It is used to control the operation of the movable flattening mechanism 3, receive the switching signals from the control switch 5, and control the operation of the fixing mechanism 2 according to the switching signals. Wherein:

[0026] like Figures 3-5As shown, the fixing assembly includes a pressure plate moving groove 21, which is symmetrically opened on the upper end face of the operating table 1. A third lead screw 22 is rotatably connected in the pressure plate moving groove 21. A lead screw slider 23 is threadedly connected to the third lead screw 22. An electromagnet 26 is fixedly connected to the upper end face of the lead screw slider 23. A spring 24 is sleeved on the outer periphery of the electromagnet 26. The lead screw slider 23 is connected to the pressure plate 25 through the spring 24. A magnet 27 that magnetically attracts the electromagnet 26 is fixedly connected at the center of the lower end face of the pressure plate 25. Limiting blocks 214 are integrally formed or fixedly connected to both ends of the lower end face of the pressure plate 25. Correspondingly, a pressure plate limiting groove 213 is symmetrically opened in the transverse direction and located at the edge of the upper end face of the operating table 1. The limiting blocks 214 on both sides are movably embedded in the pressure plate limiting groove 213. The transmission assembly includes a motor housing 28 fixedly connected to the lower end face of the operating table 1. A third motor 29 is fixedly connected inside the motor housing 28. The third motor 29 is a DC motor that can rotate forward or backward. A first bevel gear 210 is fixedly sleeved at the output end of the third motor 29. A second bevel gear 211 is fixedly sleeved at one end of the third lead screw 22 on both sides through the pressure plate moving groove 21. The second bevel gear 211 is meshed with the first bevel gear 210. The control system starts the third motor 29 to drive the first bevel gear 210 to rotate. The first bevel gear 210 drives the third lead screw 22 to rotate through the second bevel gear 211. This causes the lead screw sliders 23 on both sides to move the pressure plates 25 relative to or opposite to each other, so as to adjust the distance between the pressure plates 25 according to the size of the woven bag. At this time, the limit block 214 slides in the pressure plate limit groove 213 to prevent the pressure plates 25 from shifting when they move. After adjusting the distance between the pressure plates 25, the woven bag is placed on the operating table 1. The electromagnet 26 is energized so that it attracts the magnet 27 and the spring 24 is compressed. The pressure plate 25 is pressed against the upper surface of the operating table 1 and pressed against the edge of the woven bag to fix the woven bag, which is convenient for subsequent woven bag flattening operations.

[0027] like Figures 2-3As shown, the movable flattening mechanism 3 includes a lifting assembly, a lateral movement assembly, and a flattening assembly. The lifting assembly includes two lifting frames 31 fixedly connected to the longitudinal sides of the upper surface of the operating table 1. Each of the two lifting frames 31 has a lifting groove on one opposite side. A first lead screw 32 and a first motor 33 are installed within the lifting groove. One end of the first lead screw 32 is rotatably connected to the top of the lifting groove, and the other end is connected to the output end of the first motor 33. The mounting end of the first motor 33 is fixedly connected to the bottom of the lifting groove. The lateral movement assembly includes a lateral movement frame 34. Both ends of the lateral movement frame 34 are threadedly connected to the first lead screws 32 on both sides. Two symmetrical lateral movement grooves are opened at the bottom of the lateral movement frame 34. A second lead screw 35 and a second motor 36 are installed within the lateral movement groove. One end of the second lead screw 35 is rotatably connected to one side of the lateral movement groove, and the other end is connected to the output end of the second motor 36. The mounting end of the second motor 36 is fixedly connected to the other side of the lateral movement groove. There are two sets of flattening components, each arranged corresponding to one of the two transverse sliding grooves. Each flattening component includes a pressure roller mounting frame 37, the top of which is threadedly connected to a first lead screw 32. Pressure rollers 38 are rotatably connected to the pressure roller mounting frame 37, and the two pressure rollers 38 move in opposite directions. The control system simultaneously starts the first motor 33, driving the first lead screws 32 on both sides to rotate, allowing the transverse sliding frame 34 to move the pressure rollers 38 horizontally downwards, bringing them into contact with the woven bag thread. Then, the control system simultaneously starts the second motor 36, driving the second lead screws 35 on both sides to rotate, causing the pressure rollers 38 on both sides to move from the center to the sides and roll into contact with the woven bag, flattening it.

[0028] The control switch 5 is fixedly installed on the front side of the operating table 1. The control switch 5 includes switch 1 51, switch 2 52 and switch 3 53. Switch 1 51 and switch 2 52 are both instantaneous push-button switches. By pressing switch 1 51, the control system controls the third motor 29 to start rotating forward, and the distance between the adjusting pressure plates 25 increases. When switch 1 51 is released, the third motor 29 stops. By pressing switch 2 52, the control system controls the third motor 29 to start rotating in reverse, and the distance between the adjusting pressure plates 25 decreases. When switch 2 52 is released, the third motor 29 stops. Switch 3 53 is used to control the electromagnet 26 to be energized or de-energized.

[0029] To improve the flattening effect of the device, based on the above-mentioned preferred embodiment, a heating plate 4 is laid on the upper surface of the operating table 1. The heating plate 4 has installation clearance openings corresponding to the lifting frame 31, the pressure plate moving groove 21, and the pressure plate limiting groove 213. Heating resistance wires for heat generation are laid inside the heating plate 4. These heating resistance wires are electrically connected to the control system, which controls the opening and closing of the current circuit of the heating resistance wires. The upper surface temperature of the heating plate 4 is 50℃-80℃. Through the heat treatment of the heating plate combined with the physical flattening of the pressure roller 38, the woven bag can be better shaped after heating, improving the flattening quality of the woven bag and facilitating subsequent processing.

[0030] The working principle of this utility model is as follows: Before flattening the woven bags, a woven bag is placed on the operating table 1. The spacing of the pressure plate 52 is adjusted by pressing switch 1 51 or switch 2 52. When the spacing is appropriate and just presses the edge of the woven bag, switch 1 51 or switch 2 52 is released to fix the position of the pressure plate 52. Subsequently, when flattening woven bags of the same specification, there is no need to adjust the spacing of the pressure plate 52 again. After adjusting the spacing of the pressure plate 52, the control system controls the closed current circuit of the heating wire to turn on the heating plate 4. Then, woven bags are placed one by one and switch 3 53 is pressed. At the same time, the electromagnetic attraction and the pressure plate 52 press and fix the woven bags, and the moving flattening mechanism is started. The pressure roller 38 rolls the woven bags once or back and forth.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A flattening device for woven bags, comprising an operating table (1) and supporting legs, wherein the supporting legs are fixedly connected to the four corners of the lower end face of the operating table (1), characterized in that: The operating table (1) is provided with a fixing mechanism (2) and a moving flattening mechanism (3). The fixing mechanism (2) includes a fixing component and a transmission component. The fixing component includes a pressure plate moving groove (21). The pressure plate moving groove (21) is symmetrically opened on the upper end face of the operating table (1). A third lead screw (22) is rotatably connected in the pressure plate moving groove (21). A lead screw slider (23) is threadedly connected to the third lead screw (22). An electromagnet (26) is fixedly connected to the upper end face of the lead screw slider (23). A spring (24) is sleeved on the outer periphery of the electromagnet (26). The lead screw slider (23) is connected to the pressure plate (25) through the spring (24). A magnet (27) that magnetically attracts the electromagnet (26) is fixedly connected to the lower end face of the pressure plate (25). The transmission component is used to drive the third lead screw (22) to rotate. The moving flattening mechanism (3) is used for flattening woven bags.

2. The flattening device for woven bags according to claim 1, characterized in that: The transmission assembly includes a motor housing (28) fixedly connected to the lower end face of the operating table (1). A third motor (29) is fixedly connected inside the motor housing (28). A first bevel gear (210) is fixedly sleeved on the output end of the third motor (29). One end of the third lead screw (22) passes through the pressure plate moving groove (21) and is fixedly sleeved with a second bevel gear (211), and the second bevel gear (211) meshes with the first bevel gear (210).

3. The flattening device for woven bags according to claim 1, characterized in that: The movable flattening mechanism (3) includes a lifting component, a lateral component and a flattening component. The lifting component is fixedly connected to the upper surface of the operating table (1). The lateral component is movably connected to the lifting component, and the flattening component is movably connected to the lateral component.

4. A flattening device for woven bags according to claim 3, characterized in that: The lifting assembly includes two lifting frames (31) fixedly connected to the longitudinal sides of the upper end face of the operating table (1). Each of the two lifting frames (31) has a lifting groove on its opposite side. A first lead screw (32) and a first motor (33) are provided in the lifting groove. One end of the first lead screw (32) is rotatably connected to the top of the lifting groove, and the other end of the first lead screw (32) is connected to the output end of the first motor (33). The mounting end of the first motor (33) is fixedly connected to the bottom of the lifting groove.

5. A flattening device for woven bags according to claim 4, characterized in that: The transverse component includes a transverse frame (34), both ends of which are threadedly connected to the first lead screws (32) on both sides. Two transverse grooves are symmetrically opened at the bottom of the transverse frame (34). A second lead screw (35) and a second motor (36) are provided in the transverse grooves. One end of the second lead screw (35) is rotatably connected to one side of the transverse groove, and the other end of the second lead screw (35) is connected to the output end of the second motor (36). The mounting end of the second motor (36) is fixedly connected to the other side of the transverse groove.

6. A flattening device for woven bags according to claim 5, characterized in that: The number of the flattening components is two sets. The two sets of flattening components are respectively arranged corresponding to two transverse grooves. The flattening components include a pressure roller mounting frame (37). The top of the pressure roller mounting frame (37) is threadedly connected to the first lead screw (32). A pressure roller (38) is rotatably connected to the pressure roller mounting frame (37), and the two pressure rollers (38) move in opposite directions.

7. A flattening device for woven bags according to claim 1, characterized in that: The upper end face of the operating table (1) is symmetrically arranged in the transverse direction and has a pressure plate limiting groove (213) at the edge. The lower end face of the pressure plate (25) is fixedly connected to a limiting block (214) that can be movably embedded in the pressure plate limiting groove (213).

8. A flattening device for woven bags according to claim 1, characterized in that: The upper surface of the operating table (1) is covered with a heating plate (4), and the heating plate (4) is covered with heating resistance wires for heat generation.

9. A flattening device for woven bags according to claim 8, characterized in that: It also includes a control system and a control switch (5). The control system is electrically connected to the fixed mechanism (2), the moving flattening mechanism (3), the heating wire and the control switch (5). It is used to control the moving flattening mechanism (3) and the heating wire to work and run, and to receive the switch signal from the control switch (5) to control the fixed mechanism (2) to work and run. The control switch (5) is fixedly installed on the front side of the operating table (1). The control switch (5) includes switch one (51), switch two (52) and switch three (53). Switch one (51) and switch two (52) are used to control the third motor (29) to rotate forward and reverse, respectively. Switch three (53) is used to control the electromagnet (26) to be energized or de-energized.

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