Sealing anti-blocking device for cold glue spraying gun of glue spraying mechanism of packaging machine
By setting up a sealing component and a heating control system in the packaging machine's glue spraying device, the problem of cold glue spray gun clogging during idle time is solved, and effective sealing of the spray gun and stable operation of the equipment are achieved.
Patent Information
- Application Number
- CN202511027960.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-24
- Publication Date
- 2025-09-19
AI Technical Summary
The cold glue spray gun in the existing packaging machine's glue spraying device is prone to clogging when idle, and the existing sealing components cannot effectively prevent the glue from solidifying, resulting in cumbersome cleaning and quality risks.
A sealing and anti-blocking device for the cold glue spray gun of the glue spraying mechanism of a packaging machine is designed. The same number of sealing components as the spray guns are set on the spray gun mounting bracket. The drive motor is used to rotate the spray gun 45° and insert it into the sealing component. The temperature of the sealing oil is controlled by a heating rod and a temperature probe to prevent the glue from solidifying.
Effectively prevent cold glue spray guns from clogging during idle time, simplify the cleaning process, avoid equipment contamination and quality risks, and improve equipment operation stability.
Smart Images
Figure CN120662498A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to an anti-blocking device, in particular to a sealing anti-blocking device for a cold glue spray gun of a glue spraying mechanism of a packaging machine. Background Art
[0002] The strip box gluing device of the ZB416 high-speed packaging machine uses seven cold glue spray guns to spray glue on the strip box packaging paper. Because the glue liquid in the nozzle of the cold glue gun will naturally harden at room temperature after a certain period of time without spraying glue, it will cause the glue gun to be blocked.
[0003] Once the glue gun is clogged, disassembly and assembly are extremely tedious and labor-intensive to clean. The existing design installs a seal assembly underneath the glue gun during idle time. This seal is injected with paraffin oil from the outside, which is stored in a foam sponge. When the nozzle is inserted into the sponge, the oil moisturizes the nozzle. However, during use, the paraffin oil content in the sponge is unreadable and uncontrollable. Furthermore, during the diversion process, the amount of paraffin oil injected into each sponge is uneven, resulting in insufficient paraffin oil sealing after the glue gun is inserted, which in turn prevents the gun from becoming clogged. During normal operation, paraffin often overflows from the oil collection box, contaminating the cigarette pack conveying channel below and causing serious quality risks. Summary of the Invention
[0004] The purpose of the present invention is to provide a sealing and anti-blocking device for the cold glue spray gun of the glue spraying mechanism of a packaging machine to solve the technical problems in the prior art. The device can effectively seal the cold glue spray gun of the glue spraying mechanism when idle to prevent the glue from solidifying.
[0005] The present invention provides a sealing and anti-blocking device for a cold glue spray gun of a packaging machine's glue spraying mechanism, comprising a cold glue spray gun mounting bracket, a cold glue spray gun assembly rotatably mounted on the cold glue spray gun mounting bracket, a sealing assembly base mounted on the cold glue spray gun mounting bracket, a plurality of cold glue spray gun sealing assemblies being arranged on the sealing assembly base, and the number of the cold glue spray gun sealing assemblies being the same as the number of cold glue spray guns on the cold glue spray gun assembly.
[0006] In the aforementioned packaging machine glue spraying mechanism cold glue spray gun sealing and anti-blocking device, preferably, the sealing component base includes a back plate, a horizontal mounting plate and a sealing component supporting plate, the two ends of the back plate are fixedly connected to the cold glue spray gun mounting frame, the horizontal mounting plate is fixedly arranged on the back plate, and the two ends of the horizontal mounting plate are respectively provided with a long strip step hole, and the sealing component supporting plate is fixed to the horizontal mounting plate by a countersunk bolt installed in the long strip step hole.
[0007] In the aforementioned packaging machine glue spraying mechanism cold glue spray gun sealing and anti-blocking device, preferably, a heating rod, a sealing component fixing plate and a temperature probe are fixed on the top surface of the sealing component supporting plate, the sealing component fixing plate is located on the outside of the heating rod, and there is a gap between the bottom surface of the sealing component fixing plate and the top surface of the sealing component supporting plate, and a number of waist-shaped holes are opened on the sealing component fixing plate at equal intervals along its length direction.
[0008] In the aforementioned packaging machine glue spraying mechanism cold glue spray gun sealing and anti-blocking device, preferably, the cold glue spray gun sealing assembly includes a hollow box body and a cotton core, one end of the hollow box body is located below the sealing assembly fixing plate, and the hexagonal bolt passes through the waist-shaped hole and is threadedly connected to the top surface of the hollow box body. One or two spray gun plug-in holes are provided on the top surface of the hollow box body in the area outside the sealing assembly fixing plate, and the cotton core is installed in the spray gun plug-in hole, and sealing oil is adsorbed on the cotton core.
[0009] In the aforementioned packaging machine glue spraying mechanism cold glue spray gun sealing and anti-blocking device, preferably, a sealing component limiting groove is formed on the top surface of the sealing component supporting plate, and a limiting block is formed on the bottom surface of the hollow box body, and the limiting block is located in the sealing component limiting groove.
[0010] In the aforementioned sealing and anti-blocking device for the cold glue spray gun of the glue spraying mechanism of the packaging machine, preferably, a silicone sealing strip is fixedly provided on the outer side surface of the supporting plate of the sealing component.
[0011] In the aforementioned packaging machine glue spraying mechanism cold glue spray gun sealing and anti-blocking device, preferably, the wiring harness of the heating rod and the temperature probe extends from the left rear side of the sealing component carrier plate and is electrically connected to the packaging machine controller.
[0012] Compared with the prior art, the present invention provides a sealing assembly base, and provides the same number of cold glue spray gun sealing assemblies as the cold glue spray guns on the sealing assembly base. When the equipment is not working, the cold glue spray gun assembly is rotated 45°, so that each cold glue spray gun on the cold glue spray gun assembly is inserted into each cold glue spray gun sealing assembly to seal it, thereby preventing the glue in the cold glue spray gun from solidifying and preventing the cold glue spray gun from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is an axonometric view of the overall structure of the present invention;
[0014] Figure 2 This is an axonometric view of the present invention with the cold glue spray gun and the cold glue spray gun sealing assembly inserted;
[0015] Figure 3 It is an axonometric drawing of the present invention from another angle;
[0016] Figure 4It is an axonometric view of the sealing assembly base and the cold glue spray gun sealing assembly of the present invention.
[0017] Explanation of the accompanying drawings: cold glue spray gun mounting bracket 1, cold glue spray gun assembly 2, sealing assembly base 3, long stepped hole 4, sealing assembly fixing plate 5, waist-shaped hole 6, hollow box body 7, cotton core 8, spray gun plug-in hole 9, sealing assembly limiting groove 10, limiting block 11, silicone sealing strip 12, wiring harness 13, cold glue spray gun 14, heating rod 15, temperature probe 16, back plate 17, horizontal mounting plate 18, sealing assembly bearing plate 19, countersunk bolt 20, drive motor 21, left mounting plate 22, right mounting plate 23, connecting rod 24, driving gear 25, rotating shaft 26, driven gear 27, hexagonal bolt 28. DETAILED DESCRIPTION
[0018] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.
[0019] Embodiments of the present invention: Figures 1-4 As shown, a sealing and anti-blocking device for a cold glue gun of a packaging machine's glue spraying mechanism includes a cold glue gun mounting bracket 1, a cold glue gun assembly 2 rotatably mounted on the cold glue gun mounting bracket 1, and a drive motor 21 disposed on one side of the cold glue gun mounting bracket 1. The drive motor 21 is used to rotate the cold glue gun assembly 2. The drive motor 21 can be a servo motor and is commercially available. The drive motor 21 is electrically connected to the packaging machine's controller and is directly controlled by the packaging machine's control device.
[0020] In this embodiment, the cold glue spray gun mounting bracket 1 and the cold glue spray gun assembly 2 are both prior art. The cold glue spray gun mounting bracket 1 includes a left mounting plate 22, a right mounting plate 23 and a connecting rod 24. The upper end of the left mounting plate 22 is fixedly connected to the right mounting plate 23 through the connecting rod 24. The left mounting plate 22 and the right mounting plate 23 are arranged parallel to each other. The drive motor 21 is fixedly mounted on the inner side surface of the left mounting plate 22. The output shaft of the drive motor 21 passes through the left mounting plate 22 and extends to its outer side. A driving gear 25 is fixedly provided on the output shaft of the drive motor 21.
[0021] The cold glue gun assembly 2 is rotatably connected to the left mounting plate 22 and the right mounting plate 23 via two coaxially arranged rotating shafts 26. A driven gear 27 is fixedly mounted on the rotating shaft 26 rotatably connected to the left mounting plate 22, and the driven gear 27 meshes with the driving gear 25. It should be noted that this embodiment only describes a portion of the structure of the cold glue gun mounting bracket 1 and the cold glue gun assembly 2 in the prior art. Other structures of the cold glue gun mounting bracket 1 and the cold glue gun assembly 2 that are not related to the cold glue gun sealing and anti-blocking device are not described in detail and are not shown in the accompanying drawings.
[0022] A sealing assembly base 3 is installed between the left mounting plate 22 and the right mounting plate 23. A plurality of cold glue spray gun sealing assemblies are provided on the sealing assembly base 3. The number of cold glue spray gun sealing assemblies is the same as the number of cold glue spray guns 14 on the cold glue spray gun assembly 2.
[0023] Typically, the cold glue spray gun assembly 2 is provided with seven cold glue spray guns 14, and accordingly, the number of cold glue spray gun sealing assemblies is also seven, and the seven cold glue spray gun sealing assemblies are positioned one-to-one opposite the seven cold glue spray guns 14. When the equipment is idle, the drive motor 21 drives the cold glue spray gun assembly 2 to rotate 45°, and the seven cold glue spray guns 14 are transformed from a horizontal state to a vertical device. The seven cold glue spray guns 14 are respectively inserted into the seven cold glue spray gun sealing assemblies to prevent the glue liquid in the cold glue spray guns 14 from solidifying and clogging the spray guns. Of course, it should be noted that in the prior art, other numbers of cold glue spray guns 14 can also be provided according to needs. For example, only five cold glue spray guns 14 are required when producing thin cigarettes.
[0024] Specifically, the sealing assembly base 3 includes a back plate 17, a horizontal mounting plate 18 and a sealing assembly supporting plate 19. The two ends of the back plate 17 are fixedly connected to the cold glue spray gun mounting bracket 1, and the horizontal mounting plate 18 is fixed on the back plate 17. A long step hole 4 is respectively opened at both ends of the horizontal mounting plate 18. The sealing assembly supporting plate 19 is fixed to the horizontal mounting plate 18 by a countersunk bolt 20 installed in the long step hole 4.
[0025] Designing the mounting hole as a long stepped hole allows for fine adjustment of the sealing assembly carrier plate 19 in the front-to-back direction, thereby changing the position of each cold glue spray gun sealing assembly in the front-to-back direction, so that each cold glue spray gun 14 can be accurately inserted into each cold glue spray gun sealing assembly.
[0026] Furthermore, a heating rod 15, a sealing component fixing plate 5 and a temperature probe 16 are fixed on the top surface of the sealing component supporting plate 19. The sealing component fixing plate 5 is located on the outside of the heating rod 15. There is a gap between the bottom surface of the sealing component fixing plate 5 and the top surface of the sealing component supporting plate 19. A number of waist-shaped holes 6 are opened on the sealing component fixing plate 5 at equal intervals along its length direction.
[0027] The wiring harness 13 of the heating rod 15 and the temperature probe 16 extends from the left rear side of the sealing component carrier plate 19 and is electrically connected to the controller of the packaging machine.
[0028] The sealing assembly fixing plate 5 is used to position the cold glue spray gun sealing assembly so that the cold glue spray gun sealing assembly can be adjusted in the left and right directions and then fixed. The heating rod 15 is used to provide heat for the cold glue spray gun sealing assembly so that the sealing assembly maintains a suitable temperature.
[0029] The cold glue spray gun sealing assembly includes a hollow box body 7 and a cotton core 8. One end of the hollow box body 7 is located below the sealing assembly fixing plate 5. The hexagonal bolt 28 passes through the waist-shaped hole 6 and is threadedly connected to the top surface of the hollow box body 7. A spray gun plug-in hole 9 is provided on the top surface of the hollow box body 7 in the area outside the sealing assembly fixing plate 5. The spray gun plug-in hole 9 is a circular through hole. The cotton core 8 is installed in the spray gun plug-in hole 9, and sealing oil is adsorbed on the cotton core 8.
[0030] In this embodiment, the sealing oil on the cotton core 8 has a dropping point of approximately 37°C to 54°C. Therefore, heating and temperature control are required during use to melt the sealing oil and make it fluid so that it can better coat the nozzle of the cold glue spray gun 14. Therefore, a heating rod 15 and a temperature probe 16 are added to the sealing assembly base 3 to control the temperature between 40°C and 55°C to melt the sealing oil without drying the glue liquid.
[0031] A sealing component limiting groove 10 is formed on the top surface of the sealing component carrier plate 19, and a limiting block 11 is formed on the bottom surface of the hollow box body 7. The limiting block 11 is located in the sealing component limiting groove 10. A silicone sealing strip 12 is fixed on the outer surface of the sealing component carrier plate 19.
[0032] The sealing component limiting groove 10 cooperates with the limiting block 11 at the bottom of the hollow box body 7 to prevent the hollow box body 7 from rotating, thereby ensuring the accuracy of its position.
[0033] The working principle of the present invention is as follows: When the packaging machine is stopped, the packaging machine controller controls the drive motor 21 to operate. The output shaft of the drive motor 21 rotates the driving gear 25, which in turn drives the driven gear 27. The driven gear 27 rotates the rotating shaft 26, causing the cold glue spray gun assembly 2 to rotate 45 degrees. The cold glue spray guns 14 on the cold glue spray gun assembly 2 are flipped from a horizontal position to a vertical position. The ends of the cold glue spray guns 14 are respectively inserted into the corresponding hollow box body 7 through the respective spray gun insertion holes 9 and contact the cotton core 8. The sealing oil on the cotton core 8 seals the cold glue spray guns 14, preventing the glue liquid in the cold glue spray guns 14 from solidifying.
[0034] To ensure a good seal, when the packaging machine is stopped, the controller uses a temperature probe 16 to collect the temperature of the sealing assembly base 3 in real time. When the temperature falls below a preset value, the heater 15 is activated to keep the sealing oil within the dripping point range without drying out the glue. When the packaging machine is operating, the heater 15 is deactivated.
[0035] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the scope of implementation of the present invention is not limited to what is shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which do not exceed the spirit covered by the description and drawings, should be within the scope of protection of the present invention.
Claims
1. A sealing and anti-blocking device for a cold glue spray gun of a packaging machine glue spraying mechanism, comprising a cold glue spray gun mounting frame (1), a cold glue spray gun assembly (2) rotatably mounted on the cold glue spray gun mounting frame (1), and characterized in that: A sealing assembly base (3) is mounted on the cold glue spray gun mounting frame (1), and a plurality of cold glue spray gun sealing assemblies are arranged on the sealing assembly base (3), wherein the number of the cold glue spray gun sealing assemblies is the same as the number of the cold glue spray guns (14) on the cold glue spray gun assembly (2).
2. The sealing and anti-blocking device for the cold glue spray gun of the glue spraying mechanism of the packaging machine according to claim 1, characterized in that: The sealing assembly base (3) includes a back plate (17), a horizontal mounting plate (18) and a sealing assembly bearing plate (19), the two ends of the back plate (17) are fixedly connected to the cold glue spray gun mounting frame (1), the horizontal mounting plate (18) is fixed on the back plate (17), and the two ends of the horizontal mounting plate (18) are respectively provided with a long strip step hole (4), and the sealing assembly bearing plate (19) is fixed to the horizontal mounting plate (18) by a countersunk bolt (20) installed in the long strip step hole (4).
3. The sealing and anti-blocking device for the cold glue spray gun of the glue spraying mechanism of the packaging machine according to claim 2, characterized in that: A heating rod (15), a sealing assembly fixing plate (5) and a temperature probe (16) are fixedly provided on the top surface of the sealing assembly supporting plate (19); the sealing assembly fixing plate (5) is located outside the heating rod (15); a gap is provided between the bottom surface of the sealing assembly fixing plate (5) and the top surface of the sealing assembly supporting plate (19); and a plurality of waist-shaped holes (6) are provided on the sealing assembly fixing plate (5) at equal intervals along its length.
4. The sealing and anti-blocking device for the cold glue spray gun of the glue spraying mechanism of the packaging machine according to claim 3, characterized in that: The cold glue spray gun sealing assembly comprises a hollow box body (7) and a cotton core (8), one end of the hollow box body (7) is located below the sealing assembly fixing plate (5), and the hexagonal bolt (28) passes through the waist-shaped hole (6) and is threadedly connected to the top surface of the hollow box body (7). A spray gun plug hole (9) is provided on the top surface of the hollow box body (7) in an area outside the sealing assembly fixing plate (5), and the cotton core (8) is installed in the spray gun plug hole (9), and sealing oil is adsorbed on the cotton core (8).
5. The sealing and anti-blocking device for the cold glue spray gun of the glue spraying mechanism of the packaging machine according to claim 4, characterized in that: A sealing component limiting groove (10) is formed on the top surface of the sealing component bearing plate (19), and a limiting block (11) is formed on the bottom surface of the hollow box body (7), and the limiting block (11) is located in the sealing component limiting groove (10).
6. The sealing and anti-blocking device for the cold glue spray gun of the glue spraying mechanism of the packaging machine according to claim 5, characterized in that: A silicone sealing strip (12) is fixedly provided on the outer surface of the sealing component carrier plate (19).
7. The sealing and anti-blocking device for the cold glue spray gun of the glue spraying mechanism of the packaging machine according to claim 6, characterized in that: The wiring harness (13) of the heating rod (15) and the temperature probe (16) extends from the left rear side of the sealing component carrier plate (19) and is electrically connected to the controller of the packaging machine.