A glue applying control device for a hot melt glue compounding machine
By designing the glue feeding and adjusting components, the problems of inaccurate glue control and uneven coating in hot melt adhesive laminating machines have been solved, achieving precise control of glue volume and uniform coating effect.
Patent Information
- Application Number
- CN202411920625.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2044-12-25
AI Technical Summary
Existing hot melt adhesive laminating machines suffer from inaccurate glue control and uneven application, leading to problems such as glue dripping and uneven thickness.
The design employs a combination of glue dispensing and regulating components, including a glue tank, metering box, scraper, and solenoid valve, to achieve uniform glue application by precisely controlling the glue quantity and direction.
It achieves precise control of adhesive amount and uniform coating, ensuring uniform adhesive thickness on the material surface and reducing problems such as adhesive dripping and uneven thickness.
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Figure CN119793829B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of laminating machine technology, and in particular to an adhesive application control device for a hot melt adhesive laminating machine. Background Technology
[0002] A laminating machine is a machine that heats two or more layers of the same or different materials, such as cloth and cloth, cloth and paper, cloth and artificial leather, as well as various plastic and rubber sheets and rolls, to a molten or semi-molten state or uses a special adhesive to bond them together. Among them, the hot melt adhesive laminating machine is a type of laminating machine. The hot melt adhesive laminating machine is a laminating machine equipment that uses hot melt adhesive as a material bonding medium. Hot melt adhesive is a type of adhesive that becomes molten when heated and can be used to bond various materials.
[0003] Currently, hot melt adhesive laminating machines require adhesive application via an adhesive application control mechanism. The amount of adhesive applied is usually controlled manually, which can lead to inaccurate control and potentially cause adhesive dripping, affecting the adhesive thickness. Additionally, some adhesive scrapers can only apply adhesive in one direction, resulting in a thinner adhesive layer.
[0004] Therefore, it is necessary to provide an adhesive application control device for a hot melt adhesive laminating machine to solve the above-mentioned technical problems. Summary of the Invention
[0005] To solve the above-mentioned technical problems, the present invention provides an adhesive application control device for a hot melt adhesive laminating machine that can precisely control the amount of adhesive dispensed and simultaneously apply the adhesive in two directions, thereby enabling the adhesive to be evenly coated.
[0006] The hot melt adhesive laminating machine glue application control device provided by the present invention includes a base, a conveyor belt is provided on the top of the base, a PLC controller is provided on the front surface of the base, and a bracket is fixedly connected to the top of the base.
[0007] A glue dispensing assembly is disposed on the top of a support. The glue dispensing assembly includes a glue tank, a bottom tube, a metering box, a transparent plate, and graduation lines. The glue tank is fixedly connected to the top of the support. The bottom of the glue tank is connected to the bottom tube. The bottom of the bottom tube is connected to the metering box. The metering box has a transparent plate inside. The front surface of the transparent plate has graduation lines.
[0008] A first adjustment assembly is disposed on the top of the base. The first adjustment assembly includes a ramp, a first scraper, and a positioning plate. The ramp is located on the top of the base, and the first scraper is disposed on one side of the ramp. The positioning plate is disposed on both the front and rear surfaces of the first scraper.
[0009] The second adjustment component is disposed on the top of the base. The second adjustment component includes a fixed plate, a lead screw mechanism, a motor, and a second scraper. The fixed plate is fixedly connected to the top of the base. The lead screw mechanism is disposed inside the fixed plate. The motor is disposed outside the lead screw mechanism. The second scraper is disposed at the bottom of the motor.
[0010] Preferably, the inner wall of the glue tank is provided with a first heating strip, temperature sensors are provided on both sides of the inner wall of the glue tank, and a stirring mechanism is provided at the bottom of the inner cavity of the glue tank.
[0011] Preferably, a first solenoid valve is provided on the outer side of the bottom tube, and a second heating strip is provided on both sides of the inner wall of the metering box.
[0012] Preferably, the bottom of the dispensing box is connected to a dispensing tube, and a second solenoid valve is provided on the outside of the dispensing tube.
[0013] Preferably, a cylinder is fixedly connected to the bottom of the glue tank, and a mounting plate is fixedly connected to the piston rod of the cylinder. The bottom of the mounting plate is fixedly connected to the top of the inclined plate.
[0014] Preferably, a first connecting rod is fixedly connected to the rear surface of the positioning plate, an insertion hole for cooperating with the first connecting rod is opened inside the first scraper, and a second connecting rod is fixedly connected to the rear surface of the positioning plate.
[0015] Preferably, a first spring is welded inside the first scraper, one end of the first spring is welded to the end of the second connecting rod away from the positioning plate, a positioning rod is fixedly connected to the rear surface of the positioning plate, and a positioning hole for use with the positioning rod is opened inside the inclined plate.
[0016] Preferably, a rotating tube is fixedly connected to the bottom of the motor, a bottom rod is threadedly connected to the inside of the rotating tube, a first connecting plate is fixedly connected to the bottom of the bottom rod, and a second connecting plate is fixedly connected to both sides of the first connecting plate.
[0017] Preferably, the bottom of the first connecting plate and the bottom of the second connecting plate are both fixedly connected to side plates, and a pull rod is slidably connected inside the side plate. A second spring is sleeved on the outside of the pull rod, and one end of the second spring is welded to the outside of the pull rod.
[0018] Preferably, a collection box is provided on the top of the base, a slide bar is fixedly connected to the front surface of the collection box, a heating block is provided on the inner wall of the collection box, and an inclined groove is fixedly connected to the rear surface of the collection box.
[0019] Compared with related technologies, the glue application control device of the hot melt adhesive laminating machine provided by the present invention has the following characteristics:
[0020] Beneficial effects:
[0021] 1. This invention, by setting up a glue conveying assembly, allows the glue inside the glue tank to remain in a molten state under the action of the first heating strip and the stirring mechanism. The molten glue enters the metering box through the bottom tube, which can initially limit the amount of glue. At the same time, the glue inside the metering box can flow out through the glue outlet pipe and the second solenoid valve. By controlling the second solenoid valve, the amount of glue flowing out through the glue outlet pipe can be controlled, thus facilitating precise control of the glue dispensing amount by the operator. By setting up the first adjustment assembly and the second adjustment assembly, under the action of the first scraper, the material at the top of the conveyor belt can be longitudinally coated with glue, allowing for the first coating of glue, resulting in a thicker layer of glue applied to multiple areas. Then, under the action of the second scraper, the glue can be transversely coated, resulting in a second coating of glue, thus ensuring uniform coating of glue. At the same time, the distance between the first scraper and the material is slightly greater than the distance between the second scraper and the material. The second scraper limits the thickness of the glue coating on the material, thus ensuring that the glue is uniformly coated on the surface of the material.
[0022] 2. This invention incorporates a temperature sensor to monitor the temperature inside the glue tank in real time, ensuring the glue remains in a molten state. A first solenoid valve directs the glue from the glue tank through a bottom tube into the dispensing box, controlling the flow. A second solenoid valve controls the glue flow from the dispensing box through a dispensing tube, further controlling the dispensing amount for precision. A cylinder controls the position of the first scraper, controlling the thickness of the glue applied to the top of the material. A positioning plate and a first spring are used; when the first scraper is removed, pulling the positioning plate moves the second connecting rod, extending the first spring. This allows the positioning rod to disengage from the positioning hole, enabling the first scraper to be disassembled and easily reassembled by workers. A rotating tube and a base rod are installed, and when the motor is started, the rotating tube rotates, which in turn moves the base rod. The base rod allows for adjustment of the positions of the first and second connecting plates. A pull rod and a second spring are installed; the spring force allows the pull rod to pass through the side plate and enter the interior of the second scraper, thus positioning the second scraper and facilitating its reassembly and disassembly. A collection box is installed; under the action of the second scraper, adhesive applied to the top of the material is applied. Some adhesive may fall, and it enters the collection box through an inclined groove. A heating block then collects the adhesive. Attached Figure Description
[0023] Figure 1 A schematic diagram of a preferred embodiment of the adhesive application control device for a hot melt adhesive laminating machine provided by the present invention;
[0024] Figure 2 for Figure 1 The diagram shows the structure of the glue delivery assembly.
[0025] Figure 3 for Figure 1 The diagram shows the structure of the first adjustment component.
[0026] Figure 4 for Figure 1 The diagram shows the structure of the second adjustment component.
[0027] Figure 5 for Figure 1 The diagram shows the structural connection between the first connecting plate and the second connecting plate.
[0028] Figure 6 for Figure 1 The diagram shows the internal structure of the collection box.
[0029] The diagram shows the following components: 1. Base; 2. Conveyor Belt; 3. PLC Controller; 4. Support; 5. Glue Dispensing Assembly; 51. Glue Tank; 52. Bottom Pipe; 53. Metering Box; 54. Transparent Plate; 55. Scale Line; 6. First Adjustment Assembly; 61. Inclined Plate; 62. First Scraper; 63. Positioning Plate; 7. Second Adjustment Assembly; 71. Fixing Plate; 72. Screw Mechanism; 73. Motor; 74. Second Scraper; 8. First Heating Strip; 9. Temperature Sensor; 10. Stirring Mechanism; 11. 12. First solenoid valve; 13. Second heating strip; 14. Dispensing tube; 15. Second solenoid valve; 16. Cylinder; 17. Mounting plate; 18. First connecting rod; 19. Insertion hole; 20. Second connecting rod; 21. First spring; 22. Positioning rod; 23. Positioning hole; 24. Rotating tube; 25. Bottom rod; 26. First connecting plate; 27. Second connecting plate; 28. Side plate; 29. Pull rod; 30. Second spring; 31. Collection box; 32. Sliding strip; 33. Heating block; 44. Inclined groove. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0031] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in Figure 1A schematic diagram of a preferred embodiment of the adhesive application control device for a hot melt adhesive laminating machine provided by the present invention; Figure 2 for Figure 1 The diagram shows the structure of the glue delivery assembly. Figure 3 for Figure 1 The diagram shows the structure of the first adjustment component. Figure 4 for Figure 1 The diagram shows the structure of the second adjustment component. Figure 5 for Figure 1 The diagram shows the structural connection between the first connecting plate and the second connecting plate. Figure 6 for Figure 1 The diagram shows the internal structure of the collection box. A hot melt adhesive laminating machine's adhesive application control device includes a base 1, a conveyor belt 2 mounted on the top of the base 1, a PLC controller 3 mounted on the front surface of the base 1, and a bracket 4 fixedly connected to the top of the base 1.
[0032] The glue dispensing assembly 5 is located on the top of the support 4. The glue dispensing assembly 5 includes a glue tank 51, a bottom tube 52, a metering box 53, a transparent plate 54, and a scale line 55. The glue tank 51 is fixedly connected to the top of the support 4. The bottom tube 52 is connected to the bottom of the glue tank 51. The metering box 53 is connected to the bottom of the bottom tube 52. The transparent plate 54 is provided inside the metering box 53. The scale line 55 is provided on the front surface of the transparent plate 54.
[0033] The first adjustment component 6 is disposed on the top of the base 1. The first adjustment component 6 includes an inclined plate 61, a first scraper 62 and a positioning plate 63. The inclined plate 61 is disposed on the top of the base 1. The first scraper 62 is disposed on one side of the inclined plate 61. The positioning plate 63 is disposed on both the front and rear surfaces of the first scraper 62.
[0034] The second adjustment component 7 is located on the top of the base 1. The second adjustment component 7 includes a fixed plate 71, a lead screw mechanism 72, a motor 73, and a second scraper 74. The fixed plate 71 is fixedly connected to the top of the base 1. The lead screw mechanism 72 is located inside the fixed plate 71. The motor 73 is located outside the lead screw mechanism 72. The second scraper 74 is located at the bottom of the motor 73.
[0035] In the specific implementation process, such as Figure 1 , Figure 2 and Figure 3 As shown, the inner wall of the glue tank 51 is provided with a first heating strip 8, and temperature sensors 9 are provided on both sides of the inner wall of the glue tank 51. A stirring mechanism 10 is provided at the bottom of the inner cavity of the glue tank 51.
[0036] A first solenoid valve 11 is provided on the outside of the bottom tube 52, and a second heating strip 12 is provided on both sides of the inner wall of the metering box 53.
[0037] The bottom of the dispensing box 53 is connected to a dispensing tube 13, and a second solenoid valve 14 is provided on the outside of the dispensing tube 13.
[0038] A cylinder 15 is fixedly connected to the bottom of the glue tank 51, and a mounting plate 16 is fixedly connected to the piston rod of the cylinder 15. The bottom of the mounting plate 16 is fixedly connected to the top of the inclined plate 61.
[0039] It should be noted that: under the action of the first heating strip 8, the glue stored inside the glue tank 51 can be heated, keeping the glue in a molten state so that it can flow out smoothly. Simultaneously, under the action of the stirring mechanism 10, the glue is prevented from solidifying. When glue dispensing is required, the first solenoid valve 11 is opened, allowing the glue to enter the metering box 53 through the bottom tube 52. At the same time, the operator observes the amount of glue inside the metering box 53 through the transparent plate 54 and the scale line 55. Once a certain amount of glue has been dispensed, the valve is closed. The first solenoid valve 11 keeps the amount of glue inside the metering box 53 constant. At the same time, the second solenoid valve 14 is opened, allowing the glue inside the metering box 53 to flow out through the glue outlet tube 13. This allows the operator to precisely control the glue dispensing amount through the first solenoid valve 11, the second solenoid valve 14, and the metering box 53. When the operator needs to adjust the position of the first scraper 62, the cylinder 15 is activated. Under the action of the cylinder 15, the first scraper 62 is moved by the inclined plate 61, thereby adjusting the position of the first scraper 62.
[0040] refer to Figure 1 and Figure 3 As shown, a first connecting rod 17 is fixedly connected to the rear surface of the positioning plate 63, an insertion hole 18 for cooperating with the first connecting rod 17 is opened inside the first scraper 62, and a second connecting rod 19 is fixedly connected to the rear surface of the positioning plate 63.
[0041] A first spring 20 is welded inside the first scraper 62. One end of the first spring 20 is welded to the end of the second connecting rod 19 away from the positioning plate 63. A positioning rod 21 is fixedly connected to the rear surface of the positioning plate 63. A positioning hole 22 that cooperates with the positioning rod 21 is opened inside the inclined plate 61.
[0042] It should be noted that: after prolonged use, the first scraper 62 may suffer some damage. When it is necessary to disassemble and replace the first scraper 62, first pull the positioning plate 63. When the positioning plate 63 moves, it can drive the first connecting rod 17 to slide inside the insertion hole 18. At the same time, the second connecting rod 19 drives the first spring 20 to extend. After the positioning plate 63 moves to the designated position, the positioning rod 21 can be disengaged from the positioning hole 22, thereby allowing the first scraper 62 to be disengaged from the inclined plate 61, which makes it easier for the staff to replace and disassemble the first scraper 62.
[0043] refer to Figure 1 , Figure 4 and Figure 5 As shown, a rotating tube 23 is fixedly connected to the bottom of the motor 73, and a bottom rod 24 is threadedly connected inside the rotating tube 23. A first connecting plate 25 is fixedly connected to the bottom of the bottom rod 24, and a second connecting plate 26 is fixedly connected to both sides of the first connecting plate 25.
[0044] Side plates 27 are fixedly connected to the bottom of the first connecting plate 25 and the bottom of the second connecting plate 26. A pull rod 28 is slidably connected inside the side plate 27. A second spring 29 is sleeved on the outside of the pull rod 28. One end of the second spring 29 is welded to the outside of the pull rod 28.
[0045] It should be noted that when it is necessary to adjust the distance between the second scraper 74 and the material, the motor 73 is started first. Under the action of the motor 73, the rotating tube 23 can be rotated. When the rotating tube 23 rotates, it can drive the second scraper 74 to move through the first connecting plate 25 and the second connecting plate 26, thereby adjusting the position of the second scraper 74. When it is necessary to replace or disassemble the second scraper 74, the pull rod 28 is pulled first, so that the pull rod 28 slides inside the side plate 27, thereby causing the second spring 29 to extend, thereby causing the pull rod 28 to disengage from the inside of the second scraper 74, thus making it convenient for the staff to disassemble or replace the second scraper 74.
[0046] refer to Figure 1 and Figure 6 As shown, a collection box 30 is provided on the top of the base 1, a slide bar 31 is fixedly connected to the front surface of the collection box 30, a heating block 32 is provided on the inner wall of the collection box 30, and a sloping groove 33 is fixedly connected to the rear surface of the collection box 30.
[0047] It should be noted that during normal operation of the second scraper 74, the second scraper 74 can move laterally under the action of the screw mechanism 72, thereby applying the glue to the surface of the material. Some glue may accidentally fall off. Under the action of the inclined groove 33, the glue can be allowed to pass through the inclined groove 33 into the inside of the collection box 30. Under the action of the heating block 32, the glue collected inside the collection box 30 can be heated to prevent it from solidifying.
[0048] The working principle of the glue application control device for a hot melt adhesive laminating machine provided by this invention is as follows:
[0049] When workers need to apply adhesive to materials using this device, they first place the material on top of the conveyor belt 2. Under the action of the conveyor belt 2, the material first passes the bottom of the adhesive tank 51. At the same time, the worker starts the first heating strip 8. Under the action of the first heating strip 8 and the stirring mechanism 10, the adhesive inside the adhesive tank 51 is kept in a molten state. The first solenoid valve 11 is opened, allowing the adhesive to enter the metering box 53 through the bottom pipe 52. The worker can observe the amount of adhesive inside the metering box 53 through the transparent plate 54 and the scale line 55. Then, the second solenoid valve 14 is opened, allowing the adhesive inside the metering box 53 to drip through the glue outlet pipe 13, causing the adhesive to fall onto the top of the material. Simultaneously, the cylinder 15, under the action of the cylinder 15, can move the first scraper 62 against the material. The distance between the two scrapers is quickly adjusted. After the distance of the first scraper 62 is adjusted, the motor 73 is started. Under the action of the motor 73, the rotating tube 23 can be rotated, which in turn can drive the bottom rod 24 to move. Under the action of the bottom rod 24, the second scraper 74 can be moved, thus allowing the distance between the second scraper 74 and the material to be adjusted. At the same time, the distance between the first scraper 62 and the material is slightly greater than the distance between the second scraper 74 and the material. The distance between the second scraper 74 and the material can limit the thickness of the adhesive coating on the top of the material. Under the action of the first scraper 62, the adhesive on the top of the material can be applied longitudinally. At the same time, under the action of the second scraper 74, the adhesive on the top of the material can be applied transversely, thus ensuring that the adhesive on the top of the material has a uniform thickness, making it easier for workers to control the thickness of the adhesive on the top of the material.
[0050] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A glue application control device for a hot melt adhesive laminating machine, characterized in that, include: A base (1) is provided with a conveyor belt (2) on the top of the base (1), a PLC controller (3) is provided on the front surface of the base (1), and a bracket (4) is fixedly connected to the top of the base (1). The glue dispensing assembly (5) is located on the top of the support (4). The glue dispensing assembly (5) includes a glue tank (51), a bottom tube (52), a metering box (53), a transparent plate (54), and a scale line (55). The glue tank (51) is fixedly connected to the top of the support (4). The bottom tube (52) is connected to the bottom of the glue tank (51). The metering box (53) is connected to the bottom of the bottom tube (52). The transparent plate (54) is provided inside the metering box (53). The scale line (55) is provided on the front surface of the transparent plate (54). The first adjustment component (6) is disposed on the top of the base (1). The first adjustment component (6) includes a sloping plate (61), a first scraper (62) and a positioning plate (63). The sloping plate (61) is disposed on the top of the base (1). The first scraper (62) is disposed on one side of the sloping plate (61). The positioning plate (63) is disposed on both the front and rear surfaces of the first scraper (62). The second adjustment component (7) is located on the top of the base (1). The second adjustment component (7) includes a fixed plate (71), a lead screw mechanism (72), a motor (73), and a second scraper (74). The fixed plate (71) is fixedly connected to the top of the base (1). The lead screw mechanism (72) is located inside the fixed plate (71). The motor (73) is located outside the lead screw mechanism (72). The second scraper (74) is located at the bottom of the motor (73).
2. The glue application control device of the hot melt adhesive laminating machine according to claim 1, characterized in that, The glue tank (51) is provided with a first heating strip (8) on its inner wall, and temperature sensors (9) are provided on both sides of the inner wall of the glue tank (51). A stirring mechanism (10) is provided at the bottom of the inner cavity of the glue tank (51).
3. The glue application control device of the hot melt adhesive laminating machine according to claim 1, characterized in that, A first solenoid valve (11) is provided on the outside of the bottom tube (52), and a second heating strip (12) is provided on both sides of the inner wall of the metering box (53).
4. The glue application control device for the hot melt adhesive laminating machine according to claim 1, characterized in that, The bottom of the dispensing box (53) is connected to a dispensing tube (13), and a second solenoid valve (14) is provided on the outside of the dispensing tube (13).
5. The glue application control device for the hot melt adhesive laminating machine according to claim 1, characterized in that, A cylinder (15) is fixedly connected to the bottom of the glue tank (51), and a mounting plate (16) is fixedly connected to the piston rod of the cylinder (15). The bottom of the mounting plate (16) is fixedly connected to the top of the inclined plate (61).
6. The glue application control device for the hot melt adhesive laminating machine according to claim 1, characterized in that, The rear surface of the positioning plate (63) is fixedly connected to a first connecting rod (17), the interior of the first scraper (62) is provided with an insertion hole (18) that cooperates with the first connecting rod (17), and the rear surface of the positioning plate (63) is fixedly connected to a second connecting rod (19).
7. The glue application control device for the hot melt adhesive laminating machine according to claim 6, characterized in that, The first scraper (62) has a first spring (20) welded inside. One end of the first spring (20) is welded to the end of the second connecting rod (19) away from the positioning plate (63). The positioning rod (21) is fixedly connected to the rear surface of the positioning plate (63). The inclined plate (61) has a positioning hole (22) inside that cooperates with the positioning rod (21).
8. The glue application control device for the hot melt adhesive laminating machine according to claim 1, characterized in that, The bottom of the motor (73) is fixedly connected to a rotating tube (23), and the inside of the rotating tube (23) is threadedly connected to a bottom rod (24). The bottom of the bottom rod (24) is fixedly connected to a first connecting plate (25), and the two sides of the first connecting plate (25) are fixedly connected to a second connecting plate (26).
9. The glue application control device for the hot melt adhesive laminating machine according to claim 8, characterized in that, The bottom of the first connecting plate (25) and the bottom of the second connecting plate (26) are both fixedly connected to a side plate (27). A pull rod (28) is slidably connected inside the side plate (27). A second spring (29) is sleeved on the outside of the pull rod (28). One end of the second spring (29) is welded to the outside of the pull rod (28).
10. The glue application control device for the hot melt adhesive laminating machine according to claim 1, characterized in that, The base (1) is provided with a collection box (30) on its top. A slide bar (31) is fixedly connected to the front surface of the collection box (30). A heating block (32) is provided on the inner wall of the collection box (30). A sloping groove (33) is fixedly connected to the rear surface of the collection box (30).
Citation Information
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