Film pressing device for production of wrapping film

Abstract

The utility model discloses a film pressing device for wrapping film production, which comprises a bottom plate, one side of the bottom plate is provided with a tension adjusting mechanism, the tension adjusting mechanism comprises a support, the left side of the support is provided with a motor, the output end of the motor is fixedly connected with a crankshaft, the surface of the crankshaft is movably connected with an adjusting rod, and the adjusting rod is fixedly connected with the bottom plate. And one side of the adjusting rod is movably connected with a movable rod. According to the film pressing device for winding film production, a tension degree adjusting mechanism is arranged, a pressure value is set through an external PLC, when it is detected that the pressure value is different from the set value, a crankshaft is driven by a motor to rotate, the crankshaft drives an adjusting rod to move, the adjusting rod drives a movable rod to move, the movable rod drives an adjusting base to move, and the adjusting base drives a toothed plate to move; the toothed plate drives the gear to rotate, the gear drives the rotating shaft to rotate, the rotating shaft drives the adjusting frame to rotate, the adjusting frame drives the rectangular rod to rotate, and the rectangular rod drives the extrusion roller to rotate, so that the working tension degree is conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of stretch film production technology, specifically a film pressing device for stretch film production. Background Technology

[0002] With the rapid development of the packaging industry, stretch film, as an important packaging material, is experiencing increasing market demand. Stretch film, also known as stretch film or heat shrink film, is widely used in logistics, food, chemical and other fields due to its excellent tensile properties and self-adhesiveness. However, with the continuous improvement of market demand, higher requirements are being placed on the quality and performance of stretch film. In the production process of stretch film, it is usually necessary to roll it up. During the rolling process, in order to prevent the stretch film from becoming loose, a film pressing operation is usually required to improve the rolling effect.

[0003] According to patent document CN222630639U, a film pressing device for stretch film production is disclosed, including a base and a support mechanism mounted on the top of the base, a film pressing mechanism mounted inside the support mechanism, and a guide mechanism mounted on the top of the base and located on one side of the support mechanism. The support mechanism includes a support frame fixedly installed on the top of the base, and a take-up roller is mounted between the support frames through mounting grooves. This utility model relates to the field of stretch film production technology. This film pressing device for stretch film production can use multiple pressure rollers to roll and press the upper and lower sides of the take-up roller, effectively ensuring that the stretch film will not become loose during take-up. The limiting plate can prevent the stretch film from shifting during take-up. At the same time, as the volume of the stretch film gradually increases, the film pressing mechanism can automatically move and adjust with the increase of the volume of the stretch film, without affecting the film pressing effect, thus improving the performance.

[0004] Traditional film pressing devices cannot detect the tension during daily use, making it impossible to accurately adjust the tension. When the tension is too low, the material may loosen, leading to uneven winding. When the tension is too high, the material may be damaged, failing to meet the usage requirements. Utility Model Content

[0005] The purpose of this utility model is to provide a film pressing device for stretch film production, so as to solve the problems mentioned in the background art. In daily use, the existing traditional film pressing devices cannot detect the tension of the winding, thus making it impossible to accurately adjust the tension. When the tension is too low, the material is prone to loosening, which can easily lead to uneven winding. When the tension is too high, the material is prone to damage, thus failing to meet the usage requirements.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a film pressing device for stretch film production, comprising a base plate, a tension adjustment mechanism on one side of the base plate, the tension adjustment mechanism comprising a bracket, a motor on the left side of the bracket, a crankshaft fixedly connected to the output end of the motor, an adjusting rod movably connected to the surface of the crankshaft, a movable rod movably connected to one side of the adjusting rod, an adjusting seat movably connected to one side of the movable rod, a toothed plate fixedly connected to the top of the adjusting seat, a gear meshing on one side of the toothed plate, a rotating shaft fixedly connected to one side of the gear, an adjusting frame fixedly connected to one side of the rotating shaft, a rectangular rod slidably connected to one side of the adjusting frame, a pressing roller movably connected to one side of the rectangular rod, a pressure sensor fixedly connected to the right side of the bracket, a fixing block on the right side of the pressure sensor, the bottom of the fixing block fixedly connected to the base plate, and a buzzer fixedly connected to the right side of the fixing block.

[0007] Preferably, an extrusion mechanism is provided on the other side of the base plate. The extrusion mechanism includes a fixed frame, one side of which is fixedly connected to an adjusting frame. A lead screw is threadedly connected to one side of the adjusting frame. A connecting plate is threadedly connected to the surface of the lead screw. An L-shaped rod is fixedly connected to one side of the connecting plate. A rectangular rod is fixedly connected to one side of the L-shaped rod. A support roller is movably connected to the inner side of the adjusting frame.

[0008] Preferably, a support base is fixedly connected to the bottom of the motor, and one side of the support base is fixedly connected to the bracket.

[0009] Preferably, the top of the base plate has grooves on both the front and rear sides, and the inner cavity of the grooves is slidably connected to a slider, and one side of the slider is fixedly connected to the bracket.

[0010] Preferably, the inner cavity of the adjusting rod is slidably connected to a prism, and one side of the prism is fixedly connected to the bracket.

[0011] Preferably, the front and rear ends of the right side of the connecting plate are fixedly connected to crossbars, and the surface of the crossbars is slidably connected to the fixing frame.

[0012] Preferably, the surface of the rotating shaft is movably connected to the bracket via a first bearing, and the front and rear sides of the extrusion roller are movably connected to the rectangular rod via second bearings.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting a tension adjustment mechanism and setting the pressure value through an external PLC controller, the pressure sensor is activated during operation to detect the pressure value. When the detected pressure value differs from the set value, the motor is activated. The motor drives the crankshaft to rotate, which in turn drives the adjusting rod to move. The adjusting rod then drives the movable rod to move, which in turn drives the adjusting seat to move. The adjusting seat then drives the gear plate to move, which in turn drives the gear to rotate. The gear then drives the rotating shaft to rotate, which in turn drives the adjusting frame to rotate. The adjusting frame then drives the rectangular rod to rotate, which in turn drives the pressure roller to rotate, thus facilitating the adjustment of the working tension.

[0015] 2. By setting up an extrusion mechanism, rotating the lead screw drives the connecting plate to move, the connecting plate drives the L-shaped rod to move, the L-shaped rod drives the rectangular rod to move, and the rectangular rod drives the extrusion roller to move, thereby adjusting the distance between the extrusion roller and the support roller, which facilitates the extrusion of wrapping film of different thicknesses. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a partial structural schematic diagram of the present invention;

[0019] Figure 4 This is an enlarged structural diagram of point A of this utility model.

[0020] In the diagram: 1. Base plate; 2. Tension adjustment mechanism; 201. Motor; 202. Crankshaft; 203. Adjusting rod; 204. Movable rod; 205. Adjusting seat; 206. Gear plate; 207. Gear; 208. Rotating shaft; 209. Adjusting frame; 210. Rectangular rod; 211. Extrusion roller; 212. Support; 213. Pressure sensor; 214. Fixing block; 215. Buzzer; 3. Extrusion mechanism; 301. Fixing frame; 302. Lead screw; 303. Connecting plate; 304. L-shaped rod; 305. Support roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a technical solution: a film pressing device for stretch film production, including a base plate 1, a tension adjustment mechanism 2 provided on one side of the base plate 1, the tension adjustment mechanism 2 including a bracket 212, a motor 201 provided on the left side of the bracket 212, a crankshaft 202 fixedly connected to the output end of the motor 201, an adjusting rod 203 movably connected to the surface of the crankshaft 202, a movable rod 204 movably connected to one side of the adjusting rod 203, an adjusting seat 205 movably connected to one side of the movable rod 204, a toothed plate 206 fixedly connected to the top of the adjusting seat 205, a gear 207 meshing on one side of the toothed plate 206, a rotating shaft 208 fixedly connected to one side of the gear 207, and a rotating shaft 208... An adjusting bracket 209 is fixedly connected to the side. A rectangular rod 210 is slidably connected to one side of the adjusting bracket 209. A pressing roller 211 is movably connected to one side of the rectangular rod 210. A pressure sensor 213 is fixedly connected to the right side of the bracket 212. A fixing block 214 is set to the right side of the pressure sensor 213. The bottom of the fixing block 214 is fixedly connected to the base plate 1. A buzzer 215 is fixedly connected to the right side of the fixing block 214. The tension adjustment mechanism 2 is set, and the pressure value is set by an external PLC controller. During operation, the pressure sensor 213 is activated to detect the pressure value. When the detected value is different from the set value, the motor 201 is activated. The motor 201 drives the crankshaft 202 to rotate. 2. The adjusting rod 203 moves, which in turn moves the movable rod 204. The movable rod 204 moves the adjusting seat 205, which in turn moves the toothed plate 206. The toothed plate 206 moves the gear 207, which in turn rotates the shaft 208. The shaft 208 rotates the adjusting frame 209, which in turn rotates the rectangular rod 210. The rectangular rod 210 then rotates the pressing roller 211, thus facilitating the adjustment of the working tension. A support base is fixedly connected to the bottom of the motor 201, and one side of the support base is fixedly connected to the bracket 212. By setting the support base, the operation of the motor 201 is stabilized, and the motor 201 is limited. The front and rear sides of the top of the base plate 1... Each side is provided with a sliding groove, and a slider is slidably connected to the inner cavity of the sliding groove. One side of the slider is fixedly connected to the bracket 212. By setting the sliding groove and the slider, the operation of the bracket 212 is stabilized and the bracket 212 is balanced and supported. The inner cavity of the adjusting rod 203 is slidably connected with a prism, and one side of the prism is fixedly connected to the bracket 212. By setting the prism, the operation of the adjusting rod 203 is stabilized and the adjusting rod 203 is vertically limited. The surface of the rotating shaft 208 is movably connected to the bracket 212 through a first bearing. The front and rear sides of the extrusion roller 211 are movably connected to the rectangular rod 210 through second bearings. By setting the first bearing, the operation of the rotating shaft 208 is stabilized and the rotating shaft 208 is limited.

[0023] Please see Figure 1 , Figure 2 and Figure 3 On the other side of the base plate 1, an extrusion mechanism 3 is provided. The extrusion mechanism 3 includes a fixed frame 301. One side of the fixed frame 301 is fixedly connected to the adjusting frame 209. A lead screw 302 is threadedly connected to one side of the adjusting frame 209. A connecting plate 303 is threadedly connected to the surface of the lead screw 302. An L-shaped rod 304 is fixedly connected to one side of the connecting plate 303. A rectangular rod 210 is fixedly connected to one side of the L-shaped rod 304. A support roller 305 is movably connected to the inner side of the adjusting frame 209. By setting up the extrusion mechanism 3, rotating the lead screw 302... 02 drives the connecting plate 303 to move, the connecting plate 303 drives the L-shaped rod 304 to move, the L-shaped rod 304 drives the rectangular rod 210 to move, and the rectangular rod 210 drives the extrusion roller 211 to move, thereby adjusting the distance between the extrusion roller 211 and the support roller 305 to facilitate the extrusion of wrapping film of different thicknesses; the front and rear ends of the right side of the connecting plate 303 are fixedly connected with crossbars, and the surface of the crossbars is slidably connected to the fixing frame 301. By setting the crossbars, the operation of the connecting plate 303 is stabilized and the connecting plate 303 is balanced and supported.

[0024] Working principle: By setting the tension adjustment mechanism 2 and the pressure value set by the external PLC controller, the pressure sensor 213 is activated during operation to detect the pressure value. When the detected pressure value is different from the set value, the motor 201 is activated. The motor 201 drives the crankshaft 202 to rotate, the crankshaft 202 drives the adjusting rod 203 to move, the adjusting rod 203 drives the movable rod 204 to move, the movable rod 204 drives the adjusting seat 205 to move, the adjusting seat 205 drives the toothed plate 206 to move, the toothed plate 206 drives the gear 207 to rotate, the gear 207 drives the rotating shaft 208 to rotate, the rotating shaft 208 drives the adjusting frame 209 to rotate, the adjusting frame 209 drives the rectangular rod 210 to rotate, and the rectangular rod 210 drives the extrusion roller 211 to rotate, thereby facilitating the adjustment of the working tension. After the material processing is completed, the pressure value will be detected to disappear. At this time, the buzzer 215 will be activated to remind the staff.

[0025] By setting the extrusion mechanism 3, rotating the lead screw 302 causes the connecting plate 303 to move, which in turn causes the L-shaped rod 304 to move. The L-shaped rod 304 then causes the rectangular rod 210 to move, which in turn causes the extrusion roller 211 to move. This adjusts the distance between the extrusion roller 211 and the support roller 305, making it easier to extrude wrapping films of different thicknesses.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A film pressing device for producing stretch film, comprising a base plate (1), characterized in that: A tension adjustment mechanism (2) is provided on one side of the base plate (1). The tension adjustment mechanism (2) includes a bracket (212). A motor (201) is provided on the left side of the bracket (212). A crankshaft (202) is fixedly connected to the output end of the motor (201). An adjusting rod (203) is movably connected to the surface of the crankshaft (202). A movable rod (204) is movably connected to one side of the adjusting rod (203). An adjusting seat (205) is movably connected to one side of the movable rod (204). A toothed plate (206) is fixedly connected to the top of the adjusting seat (205). One side of the toothed plate (206) is engaged with a... A gear (207) is fixedly connected to a rotating shaft (208) on one side. An adjusting frame (209) is fixedly connected to one side of the rotating shaft (208). A rectangular rod (210) is slidably connected to one side of the adjusting frame (209). A pressing roller (211) is movably connected to one side of the rectangular rod (210). A pressure sensor (213) is fixedly connected to the right side of the bracket (212). A fixing block (214) is provided on the right side of the pressure sensor (213). The bottom of the fixing block (214) is fixedly connected to the base plate (1). A buzzer (215) is fixedly connected to the right side of the fixing block (214).

2. The film pressing device for producing stretch film according to claim 1, characterized in that: On the other side of the base plate (1), an extrusion mechanism (3) is provided. The extrusion mechanism (3) includes a fixed frame (301). One side of the fixed frame (301) is fixedly connected to an adjusting frame (209). One side of the adjusting frame (209) is threadedly connected to a lead screw (302). The surface of the lead screw (302) is threadedly connected to a connecting plate (303). One side of the connecting plate (303) is fixedly connected to an L-shaped rod (304). One side of the L-shaped rod (304) is fixedly connected to a rectangular rod (210). The inner side of the adjusting frame (209) is movably connected to a support roller (305).

3. The film pressing device for producing stretch film according to claim 1, characterized in that: The bottom of the motor (201) is fixedly connected to a support base, and one side of the support base is fixedly connected to the bracket (212).

4. The film pressing device for producing stretch film according to claim 1, characterized in that: The bottom plate (1) has grooves on both the front and rear sides of the top, and a slider is slidably connected to the inner cavity of the groove, and one side of the slider is fixedly connected to the bracket (212).

5. A film pressing device for producing stretch film according to claim 1, characterized in that: The inner cavity of the adjusting rod (203) is slidably connected to a prism, and one side of the prism is fixedly connected to the bracket (212).

6. A film pressing device for producing stretch film according to claim 2, characterized in that: The front and rear ends of the right side of the connecting plate (303) are fixedly connected with crossbars, and the surface of the crossbars is slidably connected to the fixing frame (301).

7. The film pressing device for producing stretch film according to claim 1, characterized in that: The surface of the rotating shaft (208) is movably connected to the bracket (212) via a first bearing, and the front and rear sides of the extrusion roller (211) are movably connected to the rectangular rod (210) via a second bearing.

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