Glue liquid level control structure of PE film coating device

Abstract

The utility model discloses a glue liquid level control structure of a PE film coating device, which comprises a coating pool, the top of the coating pool is provided with a control mechanism, the control mechanism is at least used for detecting the liquid level of glue in the coating pool and preventing the liquid level of the glue in the coating pool from being too low, and the control mechanism comprises a control box, a floating plate and a pump body, the floating plate is at least used for ascending and descending along with ascending and descending of the glue liquid level, and the pump body is at least used for pumping glue in the coating pool into the coating pool; a glue storage box is arranged at the bottom of the control mechanism and at least used for storing glue and supplying the glue to the coating pool. According to the utility model, glue can be injected into the coating pool in time according to the descending degree of the liquid level of the glue in the coating pool, so that the phenomena that the glue cannot be adhered to a coating roller after the glue descends to a certain liquid level, and a PE film cannot be coated with the glue due to the fact that the phenomenon is not perceived are avoided; therefore, the problem that the processing cost of the PE film is affected due to increase of PE film waste products is solved, and the glue liquid level control function is realized.

Description

Technical Field

[0001] This utility model relates to the field of PE film technology, specifically to an adhesive level control structure for a PE film coating device. Background Technology

[0002] PE film, or polyethylene film, refers to film produced from PE granules. PE film is moisture-proof and has low moisture permeability.

[0003] When applying adhesive to PE film, the coating roller of the coating device picks up the adhesive inside the coating device and applies it to the PE film by contacting the adhesive.

[0004] In the existing technology, the glue level inside the coating device gradually decreases as it is used. After the glue level drops to a certain point, the coating roller will not be able to pick up any glue. If the operator does not notice this phenomenon, the PE film will not be coated with glue, resulting in increased PE film waste and affecting the processing cost of PE film. Therefore, it is urgent to design a glue level control structure for the PE film coating device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an adhesive level control structure for a PE film coating device to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A glue level control structure for a PE film coating device includes a coating tank. A control mechanism is provided on the top of the coating tank. The control mechanism is at least used to detect the glue level inside the coating tank to prevent the glue level inside the coating tank from being too low. The control mechanism includes a control box, a float plate, and a pump body. The float plate is at least used to rise and fall with the glue level. The pump body is at least used to draw glue from inside the coating tank into the coating tank.

[0008] The bottom of the control mechanism is provided with a glue storage tank, which is used at least for storing glue and supplying glue to the coating tank.

[0009] The coating tank is internally equipped with a coating mechanism that rotates, and the coating mechanism includes a coating roller, which is used at least to coat the PE film with adhesive.

[0010] The coating tank is equipped with an adjustment mechanism, which is used to adjust the thickness of the adhesive applied to the coating roller.

[0011] Preferably, a lifting plate is slidably connected inside the control box, the float plate is connected to the lifting plate, a guide rod is provided inside the control box, and the lifting plate is slidably connected to the outside of the guide rod.

[0012] Preferably, a shut-off contact switch and an open contact switch are respectively provided on the inner wall of the top and the outer wall of the bottom of the control box. An extraction tube that is inserted into the coating tank is provided on the output end of the pump body, and an adhesive application tube that is inserted into the coating tank is provided on the output end of the pump body. Both the shut-off contact switch and the open contact switch are electrically connected to the pump body.

[0013] Preferably, the adjusting mechanism includes an adjusting tube, a movable block is slidably connected inside the adjusting tube, a scraper is integrally connected to the outer wall of the movable block, a spring groove is provided on the outer wall of the movable block, and a push spring connected to the spring groove is provided on the inner wall of the adjusting tube.

[0014] Preferably, an extrusion block is slidably connected inside the regulating tube, and an adjusting screw is threaded into one end of the regulating tube. The adjusting screw is rotatably connected to the extrusion block through a bearing. A guide block is provided on the outer wall of the extrusion block, and a guide groove is provided on the inner wall of the regulating tube. The guide block is slidably connected inside the guide groove.

[0015] Preferably, the bottom of the coating tank is provided with a recovery pipe connected to the glue storage tank, and the recovery pipe is provided with a valve.

[0016] Preferably, a filter screen is inserted inside the glue storage tank, and a baffle located outside the glue storage tank is provided on the outer wall of the filter screen. The baffle is fixed to the outer wall of the glue storage tank by bolts.

[0017] Preferably, a motor is fixedly installed on the outer wall of the coating tank, and one end of the coating roller is installed on the output shaft of the motor.

[0018] In the above technical solution, the present invention provides an adhesive level control structure for a PE film coating device.

[0019] 1. Through the set control mechanism, glue can be added to the coating tank in a timely manner according to the degree of drop in glue level inside the coating tank, so as to avoid the coating roller not being able to pick up glue after the glue level drops to a certain level, and the problem of PE film not being coated with glue without being noticed, which leads to an increase in PE film waste and affects the processing cost of PE film. This realizes the glue level control function.

[0020] 2. The distance between the scraper and the coating roller can be adjusted by the adjustment mechanism, which can control the thickness of the adhesive on the coating roller and make the thickness of the adhesive on the coating roller consistent. This ensures that the adhesive thickness is consistent when it is applied to the PE film. The distance between the scraper and the coating roller can be adjusted according to the required thickness of the adhesive.

[0021] 3. By setting up a glue storage tank, filter screen and recovery pipe, the glue inside the coating tank can be filtered when it is recovered, so as to ensure that no impurities are mixed in the glue, which also ensures the quality of PE film products. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a three-dimensional structural diagram of an embodiment of the adhesive level control structure of a PE film coating device according to the present invention.

[0024] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the adhesive level control structure for a PE film coating device according to the present invention.

[0025] Figure 3 This is a schematic diagram of the control mechanism structure provided in an embodiment of the adhesive level control structure of a PE film coating device according to this utility model.

[0026] Figure 4 This is a schematic diagram of the adjustment structure provided for an embodiment of the adhesive level control structure of a PE film coating device according to this utility model.

[0027] Figure 5 This is a schematic diagram of the adhesive storage tank structure provided in an embodiment of the adhesive level control structure of a PE film coating device according to this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Coating tank; 2. Control mechanism; 21. Control box; 22. Float; 23. Lifting plate; 24. Guide rod; 25. Close contact switch; 26. Open contact switch; 27. Pump body; 28. Extraction pipe; 29. ​​Glue application pipe; 3. Glue storage tank; 31. Filter screen; 32. Baffle; 4. Adjustment mechanism; 41. Adjustment pipe; 42. Moving block; 43. Scraper; 44. Spring groove; 45. Push spring; 46. Adjusting screw; 47. Extrusion block; 48. Guide block; 49. Guide groove; 5. Recovery pipe; 51. Valve; 6. Coating mechanism; 61. Coating roller; 62. Motor. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] like Figure 1-5 As shown in the figure, the adhesive level control structure of the PE film coating device provided by this utility model includes a coating tank 1. A control mechanism 2 is provided at the top of the coating tank 1. The control mechanism 2 is used at least to detect the adhesive level inside the coating tank 1 to prevent the adhesive level inside the coating tank 1 from being too low. The control mechanism 2 includes a control box 21, a float 22, and a pump body 27. The float 22 is used at least to rise and fall with the rise and fall of the adhesive level. The pump body 27 is used at least to draw the adhesive from inside the coating tank 1 into the coating tank 1. A glue storage tank 3 is provided at the bottom of the control mechanism 2. The glue storage tank 3 is used at least to store the adhesive and supply the adhesive to the coating tank 1. A coating mechanism 6 is rotatably provided inside the coating tank 1. The coating mechanism 6 includes a coating roller 61. The coating roller 61 is used at least to coat the PE film with adhesive. An adjustment mechanism 4 is provided inside the coating tank 1. The adjustment mechanism 4 is used at least to adjust the thickness of the adhesive adhering to the coating roller 61.

[0032] In this embodiment, as Figure 1 and Figure 3 As shown, the coating tank 1 is provided with a control mechanism 2 on the top of the coating tank 1. The control mechanism 2 is used at least to detect the liquid level of the adhesive inside the coating tank 1 to prevent the liquid level of the adhesive inside the coating tank 1 from being too low. The control mechanism 2 includes a control box 21, a float 22 and a pump body 27. The float 22 is used at least to rise and fall with the rise and fall of the adhesive liquid level. The pump body 27 is used at least to draw the adhesive inside the coating tank 1 into the interior of the coating tank 1.

[0033] Specifically, a lifting plate 23 is slidably connected inside the control box 21, and a float plate 22 is connected to the lifting plate 23. A guide rod 24 is provided inside the control box 21, and the lifting plate 23 is slidably connected to the outside of the guide rod 24. The guide rod 24 can guide the lifting plate 23.

[0034] Specifically, a shut-off contact switch 25 and an open contact switch 26 are respectively installed on the inner wall of the top and the outer wall of the bottom of the control box 21. An extraction tube 28 is installed on the output end of the pump body 27 and inserted into the coating tank 1. An adhesive addition tube 29 is also installed on the output end of the pump body 27 and inserted into the coating tank 1. Both the shut-off contact switch 25 and the open contact switch 26 are electrically connected to the pump body 27. When the lifting plate 23 touches the shut-off contact switch 25, the shut-off contact switch 25 shuts down the pump body 27 and stops extracting adhesive from the adhesive storage tank 3. When the float plate 22 touches the open contact switch 26 as the adhesive level drops, the open contact switch 26 turns on the pump body 27 and extracts adhesive from the adhesive storage tank 3 and adds it into the coating tank 1 until the lifting plate 23 touches the shut-off contact switch 25 and shuts down the pump body 27 again.

[0035] In this embodiment, as Figure 1 , 2 and Figure 5 As shown, a glue storage tank 3 is provided at the bottom of the control mechanism 2. The glue storage tank 3 is used at least for storing glue and supplying glue to the coating tank 1.

[0036] Specifically, the bottom of the coating tank 1 is provided with a recovery pipe 5 connected to the glue storage tank 3, and the recovery pipe 5 is provided with a valve 51. When the valve 51 is opened, the glue can be recovered into the glue storage tank 3 through the recovery pipe 5.

[0037] Specifically, a filter screen 31 is inserted inside the glue storage tank 3, and a baffle 32 located outside the glue storage tank 3 is provided on the outer wall of the filter screen 31. The baffle 32 is fixed to the outer wall of the glue storage tank 3 by bolts. The filter screen 31 can filter out impurities in the recycled glue.

[0038] In this embodiment, as Figure 1 and Figure 2 As shown, a coating mechanism 6 is rotatably arranged inside the coating tank 1. The coating mechanism 6 includes a coating roller 61, which is used to coat the PE film with adhesive.

[0039] Specifically, a motor 62 is fixedly installed on the outer wall of the coating tank 1, and one end of the coating roller 61 is installed on the output shaft of the motor 62. The motor 62 can drive the coating roller 61 to rotate and pick up the glue inside the coating tank 1. Then, by contacting the PE film, the glue can be coated on the PE film.

[0040] In this embodiment, as Figure 1 , 2 and Figure 4 As shown, the coating tank 1 is equipped with an adjustment mechanism 4, which is used to adjust the thickness of the adhesive applied to the coating roller 61.

[0041] Specifically, the adjustment mechanism 4 includes an adjustment tube 41, a movable block 42 is slidably connected inside the adjustment tube 41, and a scraper 43 is integrally connected to the outer wall of the movable block 42. A spring groove 44 is provided on the outer wall of the movable block 42, and a push spring 45 connected to the spring groove 44 is provided on the inner wall of the adjustment tube 41. When the movable block 42 is not squeezed by the pressing block 47, the elastic force of the push spring 45 will push the movable block 42 and the scraper 43 to move.

[0042] Specifically, an extrusion block 47 is slidably connected inside the regulating tube 41, and an adjusting screw 46 is threaded into one end of the regulating tube 41. The adjusting screw 46 is rotatably connected to the extrusion block 47 through a bearing. A guide block 48 is provided on the outer wall of the extrusion block 47, and a guide groove 49 is provided on the inner wall of the regulating tube 41. The guide block 48 is slidably connected inside the guide groove 49. Rotating the adjusting screw 46 can drive the extrusion block 47 to move, and the extrusion block 47 will drive the scraper 43 to move, thereby adjusting the distance between the scraper 43 and the coating roller 61.

[0043] Working principle:

[0044] First, adjust the distance between the scraper 43 and the coating roller 61 of the adjusting mechanism 4 according to the required thickness of the adhesive. The greater the distance between the scraper 43 and the coating roller 61, the thicker the adhesive will be.

[0045] Then, the PE film is transferred to the top of the coating tank 1 by the guide roller at the front end of the coating tank 1, and the coating roller 61 is driven to rotate to pick up the glue inside the coating tank 1. As the coating roller 61 rotates, when the coating roller 61 comes into contact with the PE film, the glue is applied to the PE film.

[0046] As the adhesive is used, the adhesive level inside the coating tank 1 will drop. When it drops to a certain level, the lifting plate 23 will touch the control box 21 to activate the contact switch 26, thereby turning on the pump 27 to inject the adhesive from the storage tank 3 into the coating tank 1. This allows for the detection of the adhesive level inside the coating tank 1, preventing the adhesive level from being too low and avoiding the phenomenon that the PE film cannot be coated with adhesive.

[0047] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A glue level control structure for a PE film coating device, comprising a coating tank (1), characterized in that, The top of the coating tank (1) is provided with a control mechanism (2). The control mechanism (2) is at least used to detect the liquid level of the glue inside the coating tank (1) to prevent the liquid level of the glue inside the coating tank (1) from being too low. The control mechanism (2) includes a control box (21), a float (22) and a pump body (27). The float (22) is at least used to rise and fall with the rise and fall of the glue liquid level. The pump body (27) is at least used to draw the glue inside the coating tank (1) into the interior of the coating tank (1). The bottom of the control mechanism (2) is provided with a glue storage tank (3), which is used at least for storing glue and supplying glue to the coating tank (1); The coating tank (1) is rotatably equipped with a coating mechanism (6), which includes a coating roller (61) and is used to coat the PE film with adhesive. The coating tank (1) is equipped with an adjustment mechanism (4), which is used to adjust the thickness of the adhesive on the coating roller (61).

2. The adhesive level control structure of the PE film coating device according to claim 1, characterized in that, The control box (21) is slidably connected to a lifting plate (23), the float plate (22) is connected to the lifting plate (23), the control box (21) is provided with a guide rod (24), and the lifting plate (23) is slidably connected to the outside of the guide rod (24).

3. The adhesive level control structure of the PE film coating device according to claim 2, characterized in that, The control box (21) is provided with a closing contact switch (25) on the inner wall of the top and a turning contact switch (26) on the outer wall of the bottom. The pump body (27) is provided with an extraction tube (28) inserted into the coating tank (1) at the output end, and a glue-adding tube (29) inserted into the coating tank (1) at the output end of the pump body (27). The closing contact switch (25) and the turning contact switch (26) are electrically connected to the pump body (27).

4. The adhesive level control structure of the PE film coating device according to claim 3, characterized in that, The adjustment mechanism (4) includes an adjustment tube (41), a moving block (42) is slidably connected inside the adjustment tube (41), and a scraper (43) is integrally connected to the outer wall of the moving block (42). A spring groove (44) is provided on the outer wall of the moving block (42), and a push spring (45) connected to the spring groove (44) is provided on the inner wall of the adjustment tube (41).

5. The adhesive level control structure of the PE film coating device according to claim 4, characterized in that, The regulating tube (41) is slidably connected to the inside of the extrusion block (47), and one end of the regulating tube (41) is threaded with an adjusting screw (46). The adjusting screw (46) is rotatably connected to the extrusion block (47) through a bearing. A guide block (48) is provided on the outer wall of the extrusion block (47), and a guide groove (49) is provided on the inner wall of the regulating tube (41). The guide block (48) is slidably connected inside the guide groove (49).

6. The adhesive level control structure of the PE film coating device according to claim 5, characterized in that, The bottom of the coating tank (1) is provided with a recovery pipe (5) connected to the glue storage tank (3), and a valve (51) is provided on the recovery pipe (5).

7. The adhesive level control structure of the PE film coating device according to claim 6, characterized in that, A filter screen (31) is inserted inside the glue storage box (3), and a baffle (32) located outside the glue storage box (3) is provided on the outer wall of the filter screen (31). The baffle (32) is fixed to the outer wall of the glue storage box (3) by bolts.

8. The adhesive level control structure of the PE film coating device according to claim 7, characterized in that, A motor (62) is fixedly installed on the outer wall of the coating tank (1), and one end of the coating roller (61) is installed on the output shaft of the motor (62).

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