Glue spraying device for paper-plastic compound machine

Abstract

The utility model belongs to the technical field of labeling equipment, and particularly relates to a glue spraying device for a paper-plastic compound machine, which comprises a glue box, a glue roller is rotatably arranged at the upper end of the glue box, a scraper mechanism is slidably arranged at the upper end of the glue box, and the scraper mechanism is in transmission connection with a second air cylinder. The second air cylinder can drive the scraper mechanism to be attached to the outer wall of the rubber roller. A spraying mechanism is arranged at the upper end of the glue box in a sliding mode, the spraying mechanism is in transmission connection with a first air cylinder, and the first air cylinder can drive the spraying mechanism to be arranged close to the outer wall of the glue roller. According to the device, the scraper can be cleaned in time, the device is reset again to scrape glue after cleaning is completed, the scraper can be always in a clean state, it is ensured that uniform film glue liquid is formed on the surface of the glue roller, and the quality of subsequent labeling is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of labeling equipment, in particular to a glue spraying device used for a paper-plastic composite machine. Background Art

[0002] Labeling equipment (such as paper-plastic composite machine, sleeve labeling machine, labeling machine, etc.) is a device that sticks labels on the required surface of products or on the specified packaging. It is widely used in chemical, pharmaceutical, daily chemical, food, beverage, electronics and other industries. Labeling equipment mainly includes label supply device, label removal device, printing device, glue supply device, glue coating device and interlocking device, etc.

[0003] At present, hot melt labeling machines are divided into spray type and roller type. These methods must rely on a melt glue box with a hot melt pump, and use a heated rubber hose to supply the hot melt to the rubber roller. The glue on the rubber roller is spread by a scraper to form a uniform film on the rubber roller, so that the label paper is evenly coated with glue or coated with glue through an intermediate roller.

[0004] Most of the glue spraying devices in the prior art convey glue through a pump hose and a nozzle, and then use a scraper mechanism to form a uniform film of glue on the rubber roller. The disadvantages are: the nozzle discharges glue at a fast speed, the glue is sprayed on the rubber roller at a high speed, and the scraper is in a state of scraping glue all the time, resulting in the scraper quickly accumulating and sticking glue on the surface. If the colloid on the scraper surface cannot be removed in time, it will result in the failure to form a uniform film of glue on the surface of the rubber roller, thereby affecting the subsequent scraping operation. Utility Model Content

[0005] In view of the technical problems existing in the background technology, the utility model provides a glue spraying device for a paper-plastic composite machine.

[0006] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0007] A glue spraying device for a paper-plastic composite machine comprises a glue box, a glue roller is rotatably provided on the upper end of the glue box, a scraper mechanism is slidably provided on the upper end of the glue box, the scraper mechanism is connected to a second cylinder for transmission, and the second cylinder can drive the scraper mechanism to be arranged close to the outer wall of the glue roller; a spraying mechanism is slidably provided on the upper end of the glue box, the spraying mechanism is connected to a first cylinder for transmission, and the first cylinder can drive the spraying mechanism to be arranged close to the outer wall of the glue roller.

[0008] Optionally, the scraper mechanism includes a guide seat and a scraper fixed to the upper end of the guide seat, the scraper is configured to be polygonal, and the scraper is provided with a plurality of rubber scraping surfaces.

[0009] Optionally, there is a transition surface between two adjacent scraping surfaces.

[0010] Optionally, a guide groove is provided at one end of the guide seat close to the rubber roller, and two supports are symmetrically provided at the upper end of the guide seat. A fixed shaft is fixed between the supports, a scraper is rotatably provided on the fixed shaft, an external thread is provided on the fixed shaft, a locking nut is provided on the outer wall of the fixed shaft, and the locking nut is tightened against the side wall of the scraper.

[0011] Optionally, a deflector cover is obliquely arranged at one end of the deflector seat away from the rubber roller, and a plurality of sliding holes connected to the deflector groove are arranged inside the deflector cover; a sliding rod is slidably arranged in the sliding hole, and the upper ends of the plurality of sliding rods are connected to an L-shaped push rod, and a clamping block is arranged at one end of the push rod, and the clamping block can clamp the outer wall of the scraper.

[0012] Optionally, both side walls of the air deflector are respectively provided with ribs.

[0013] Optionally, the spraying mechanism includes a nozzle and a slider, the upper end of the glue box is provided with a slide groove connected to the inner cavity of the glue box, the slider is slidably set in the slide groove, the bottom end of the nozzle is detachably set in the inner hole of the slider, the bottom end of the slider is connected to a hose, and the hose is connected to a pump body.

[0014] Optionally, a second slide groove communicating with the inner cavity of the glue box is provided at the upper end of the glue box, and the guide seat is slidably disposed in the second slide groove.

[0015] Optionally, a rotating shaft is rotatably provided on the rubber box, a rubber roller is connected to the rotating shaft, a driving motor is provided on the inner wall of the rubber box, and the driving motor is connected to the rotating shaft for transmission.

[0016] The utility model has the following advantages and beneficial effects:

[0017] In the utility model, the spraying mechanism can be driven to be close to the outer wall of the rubber roller by the cylinder 1 to adjust the distance between the spraying mechanism and the rubber roller, so that the glue liquid can be sprayed on the rubber roller evenly at a certain speed, avoiding the phenomenon that the glue liquid rapidly adheres to the scraper surface due to uneven spraying of the colloid; at the same time, the scraper mechanism can be driven to be close to the outer wall of the rubber roller by the cylinder 2 to perform the glue scraping operation. When the colloid is stuck and accumulated on the scraper surface, the scraper can be quickly moved away from the rubber roller, and the colloid on the scraper surface can be removed in time. After cleaning, it can be reset again to perform the glue scraping operation. The design of this structure can always keep the scraper in a clean state, ensure that a uniform film of glue liquid is formed on the surface of the rubber roller, and ensure the quality of subsequent labeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of the glue spraying device provided by the utility model;

[0019] Figure 2 A cross-sectional view of the glue spraying device provided by the utility model;

[0020] Figure 3 An enlarged view of a partial structure of the glue spraying device provided by the utility model;

[0021] Figure 4 for Figure 3 Schematic diagram along direction B;

[0022] Figure 5 for Figure 4 Sectional view along the AA direction;

[0023] Figure 6 A structural diagram of the push rod, clamping block and sliding rod provided by the utility model;

[0024] Icons: 1-rubber box, 11-slideway one, 12-slideway two, 2-rubber roller, 21-rotating shaft, 22-driving motor, 3-sprinkler, 31-rubber hose, 4-scraper, 41-rubber scraping surface, 42-transition surface, 5-push rod, 51-clamp block, 52-slide rod, 6-guide seat, 61-guide groove, 62-slide hole, 63-support, 64-fixed shaft, 65-locking nut, 7-guide cover, 71-rib, 8-cylinder one, 81-piston rod one, 82-slider, 9-cylinder two, 91-piston rod two. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example

[0028] like Figures 1 to 6 As shown, a glue spraying device for a paper-plastic composite machine includes a glue box 1, a glue roller 2 is rotatably provided on the upper end of the glue box 1, a scraper mechanism is slidably provided on the upper end of the glue box 1, the scraper mechanism is connected to a cylinder 9 for transmission, and the cylinder 9 can drive the scraper mechanism to fit the outer wall of the glue roller 2; a spraying mechanism is slidably provided on the upper end of the glue box 1, the spraying mechanism is connected to a cylinder 8 for transmission, and the cylinder 8 can drive the spraying mechanism to be close to the outer wall of the glue roller 2.

[0029] In the utility model, the cylinder 1 8 can drive the spraying mechanism to be close to the outer wall of the rubber roller 2 to adjust the distance between the spraying mechanism and the rubber roller 2, so that the glue can be sprayed on the rubber roller 2 evenly at a certain speed, avoiding the phenomenon that the glue is rapidly adhered to the surface of the scraper 4 due to uneven spraying of the colloid; at the same time, the cylinder 2 9 can drive the scraper mechanism to be set close to the outer wall of the rubber roller 2 to perform the scraping operation. When the colloid is stuck and accumulated on the surface of the scraper 4, the scraper 4 can be quickly moved away from the rubber roller 2, and the colloid on the surface of the scraper 4 can be removed in time. After cleaning, it can be reset again to perform the scraping operation. This structural design can always keep the scraper 4 in a clean state, ensure that a uniform film of glue is formed on the surface of the rubber roller 2, and ensure the quality of subsequent labeling.

[0030] like Figures 3 to 6 As shown, further, the scraper 4 mechanism includes a guide seat 6 and a scraper 4 fixed on the upper end of the guide seat 6, the scraper 4 is set in a polygonal shape, and the scraper 4 is provided with a plurality of scraping surfaces 41. As a preferred design of the utility model, three scraping surfaces 41 are provided, and the overall scraper 4 is in a triangular shape. With such a design, when one of the scraping surfaces 41 is stuck with glue, the scraping surface 41 can be rotated and replaced in time, the clean scraping surface 41 is attached to the surface of the rubber roller 2 for scraping glue, and the scraping surface 41 stuck with glue is rotated to a non-working station for removing the glue.

[0031] Furthermore, a transition surface 42 is provided between two adjacent scraping surfaces 41. Such a design avoids the adjacent scraping surfaces 41 from intersecting with each other, and can prevent the glue on the scraping surface 41 in the scraping state from flowing onto the clean scraping surface 41.

[0032] like Figures 1 to 6 As shown, a guide groove 61 is provided at one end of the guide seat 6 close to the rubber roller 2, and two supports 63 are symmetrically provided at the upper end of the guide seat 6. A fixed shaft 64 is fixed between the supports 63. A scraper 4 is rotatably provided on the fixed shaft 64. An external thread is provided on the fixed shaft 64. A locking nut 65 is provided on the outer wall of the fixed shaft 64. Two locking nuts 65 are provided. The locking nuts 65 are tightly screwed against the side wall of the scraper 4. After the scraper 4 is rotated to adjust the angle of the scraping rubber surface 41, it is fixed by the locking nut 65. This design makes it easy to adjust the angle of the scraper 4 and select the corresponding scraping rubber surface 41 to fit the surface of the rubber roller 2. At the same time, after the guide groove 61 is designed, the glue scraped from the scraping rubber surface 41 will flow down along the scraper 4, and will be diverted after reaching the guide groove 61, and finally the glue will be recovered.

[0033] like Figures 1 to 6As shown, further, a deflector 7 is obliquely provided at one end of the deflector seat 6 away from the rubber roller 2, and ribs 71 are provided on both side walls of the deflector 7 to limit the overflow of the glue liquid. A plurality of sliding holes 62 connected to the deflector groove 61 are provided inside the deflector 7; sliding rods 52 are slidably provided in the sliding holes 62, and the upper ends of the plurality of sliding rods 52 are connected to the L-shaped push rod 5, and a clamping block 51 is provided at one end of the push rod 5, and the clamping block 51 can clamp the outer wall of the scraper 4. The clamping block 51 is preferably made of elastic rubber material, which can be clamped on the surface of the scraper 4 to remove the glue liquid and prevent the scraper 4 from being damaged. Figures 3 to 5 When the scraping surface 41 with glue stuck on it rotates to the position of the clamping block 51, the push rod 5 is manually pushed to make the clamping block 51 slide downward along the outer wall of the scraping surface 41, gradually scraping off the glue on the scraping surface 41 and dropping it on the guide cover 7, and then recovering it through the guide groove 61. With this design, the scraper 4 can be rotated in time, the clean scraping surface 41 can be replaced, and the scraping surface 41 with glue stuck on it can be cleaned.

[0034] In the utility model, the spraying mechanism includes a nozzle 3 and a slider 82. The nozzle 3 is tilted at a certain angle, and the tilt angle of the nozzle 3 is consistent with the angle of the inclined surface of the rubber roller 2. The upper end of the rubber box 1 is provided with a slide groove 11 connected to the inner cavity of the rubber box 1. The slider 82 is slidably arranged in the slide groove 11. The piston rod 81 of the cylinder 8 is connected to the slider 82. The bottom end of the nozzle 3 is detachably arranged in the inner hole of the slider 82. The bottom end of the slider 82 is connected to a rubber hose 31, and the rubber hose 31 is connected to a pump body (not shown in the figure). The glue liquid is extracted through the pump body and sprayed from the nozzle 3 to the surface of the rubber roller 2.

[0035] Furthermore, a second slide groove 12 communicating with the inner cavity of the rubber box 1 is provided at the upper end of the rubber box 1 , a second piston rod 91 of the second cylinder 9 is connected to the guide seat 6 , and the guide seat 6 is slidably disposed in the second slide groove 12 .

[0036] Furthermore, a rotating shaft 21 is rotatably provided on the glue box 1, and a glue roller 2 is connected to the rotating shaft 21. A driving motor 22 is provided on the inner wall of the glue box 1. The driving motor 22 and the rotating shaft 21 are connected for transmission. The driving motor 22 drives the glue roller 2 to rotate, evenly receives the glue sprayed from the nozzle 3, and connects with the surface of the scraper 4 to achieve a uniform scraping operation of the glue.

[0037] In the utility model, Figure 2 As shown, after the angle of one of the rubber scraping surfaces 41 of the scraper 4 is adjusted, slide the clamp block 51 downward so that the clamp block 51 is clamped on the bottom rubber scraping surface 41. While the scraper 4 is rotated and fixed by the locking nut 65, the clamp block 51 is used to fix it for secondary limiting, so as to prevent the scraper 4 from loosening, rotation angle deviation, etc. during use.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A glue spraying device for a paper-plastic composite machine, comprising a glue box, a glue roller rotatably disposed at the upper end of the glue box, characterized in that : The upper end of the rubber box is slidably provided with a scraper mechanism, the scraper mechanism is connected and driven by the second cylinder, and the second cylinder can drive the scraper mechanism to fit the outer wall of the rubber roller; The upper end of the rubber box is slidably provided with a spraying mechanism, the spraying mechanism is connected to the first cylinder for transmission, and the first cylinder can drive the spraying mechanism to be arranged close to the outer wall of the rubber roller.

2. The glue spraying device for a paper-plastic composite machine according to claim 1, characterized in that: The scraper mechanism comprises a guide seat and a scraper fixed on the upper end of the guide seat. The scraper is arranged in a polygonal shape and has a plurality of rubber scraping surfaces.

3. The glue spraying device for a paper-plastic composite machine according to claim 2, characterized in that: A transition surface is provided between two adjacent scraping surfaces.

4. The glue spraying device for a paper-plastic composite machine according to claim 2, characterized in that: A guide groove is provided at one end of the guide seat close to the rubber roller, and two supports are symmetrically provided at the upper end of the guide seat. A fixed shaft is fixed between the supports, a scraper is rotatably provided on the fixed shaft, an external thread is provided on the fixed shaft, a locking nut is provided on the outer wall of the fixed shaft, and the locking nut is tightly screwed against the side wall of the scraper.

5. The glue spraying device for a paper-plastic composite machine according to claim 4, characterized in that: A deflector cover is obliquely arranged at one end of the deflector seat away from the rubber roller, and a plurality of sliding holes connected to the deflector groove are arranged inside the deflector cover; a sliding rod is slidably arranged in the sliding hole, and the upper ends of the plurality of sliding rods are connected to an L-shaped push rod, and a clamping block is arranged at one end of the push rod, and the clamping block can clamp the outer wall of the scraper.

6. The glue spraying device for a paper-plastic composite machine according to claim 5, characterized in that: The two side walls of the air guide cover are respectively provided with retaining edges.

7. The glue spraying device for a paper-plastic composite machine according to claim 1, characterized in that: The spraying mechanism includes a nozzle and a slider. The upper end of the glue box is provided with a slide groove connected to the inner cavity of the glue box. The slider is slidably arranged in the slide groove. The bottom end of the nozzle is detachably arranged in the inner hole of the slider. The bottom end of the slider is connected to a hose, and the hose is connected to a pump body.

8. The glue spraying device for a paper-plastic composite machine according to claim 4, characterized in that: The upper end of the glue box is provided with a second slide groove communicated with the inner cavity of the glue box, and the guide seat is slidably arranged in the second slide groove.

9. The glue spraying device for a paper-plastic composite machine according to claim 1, characterized in that: A rotating shaft is rotatably arranged on the rubber box, a rubber roller is connected to the rotating shaft, a driving motor is arranged on the inner wall of the rubber box, and the driving motor is connected to the rotating shaft for transmission.

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