A slot die head

Abstract

This application belongs to the field of adhesive tape production technology, specifically a slit spray head, including an upper mold, a lower mold, a connecting tube, and a spraying auxiliary pad. The upper mold is positioned above the lower mold, and the upper and lower molds are connected by a connecting mechanism. The connecting tube is fixedly connected to the front surface of the lower mold by bolts. An adhesive storage tank is formed on the upper surface of the lower mold, and the interior of the connecting tube communicates with the adhesive storage tank. The spraying auxiliary pad is placed on the upper surface of the lower mold behind the adhesive storage tank. The connecting mechanism includes a mounting base, a rotating base, a rotating shaft, a moving groove, and a rotation angle limiting component. The rear side of the mounting base is fixedly connected to the front side of the lower mold, and the rear side of the rotating base is fixedly connected to the front side of the upper mold. This application uses a method of introducing adhesive into the adhesive storage tank through the connecting tube and then spraying the adhesive out from the gap between the upper and lower molds, so that the adhesive can fall onto the surface of the transparent film by spraying, thereby achieving the effect of preventing adhesion during the adhesive application process.

Description

Technical Field

[0001] This application belongs to the field of tape production technology, specifically a slot spray head. Background Technology

[0002] Adhesive tape is a commonly used material in daily life and industry, composed of a substrate and an adhesive. Its core function is to quickly bond materials together.

[0003] Currently, existing adhesive tapes typically require injecting adhesive into a narrow area and then applying the adhesive to the surface of a transparent film using a coating roller to form the tape. However, during the coating process, the transparent film is prone to sticking to the coating roller, which affects production efficiency. Therefore, a slot spray head needs to be designed to solve the above problems. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of existing technologies by designing a slit spray head that replaces the application of adhesive rollers with spraying, thus solving the problem of adhesion that easily occurs during the adhesive application process.

[0005] To achieve the above objectives, the following technical solution is adopted: A slot spray nozzle includes an upper mold, a lower mold, a connecting pipe, and a spraying auxiliary pad. The upper mold is positioned above the lower mold and is connected to the lower mold via a connecting mechanism. The connecting pipe is fixedly connected to the front surface of the lower mold by bolts. An adhesive storage groove is formed on the upper surface of the lower mold. The interior of the connecting pipe communicates with the adhesive storage groove. The spraying auxiliary pad is placed on the upper surface of the lower mold behind the adhesive storage groove.

[0006] Preferably, the adhesive spraying auxiliary pad is a U-shaped pad, the length and width of the adhesive spraying auxiliary pad are consistent with the length and width of the upper mold and the lower mold, the inner width of the recessed area of ​​the adhesive spraying auxiliary pad is greater than the length of the glue storage tank, and the recessed area of ​​the adhesive spraying auxiliary pad is located on the upper side and the rear side of the glue storage tank.

[0007] Preferably, the connecting mechanism includes a mounting base, a rotating base, a rotating shaft, a moving groove, and a rotation angle limiting component. The rear side of the mounting base is fixedly connected to the front side of the lower mold, and the rear side of the rotating base is fixedly connected to the front side of the upper mold. The rotating base is positioned directly above the mounting base. The outer wall of the rotating shaft passes through the rotating base and is fixedly connected to the inner wall of the rotating base. The moving groove is formed on the inner wall of the mounting base. The distance between the rotating shaft and the rear surface of the rotating base is the same as the distance between the moving groove and the rear surface of the mounting base. The rotation angle limiting component is fixedly connected to the front side of the mounting base.

[0008] Preferably, the rotation angle limiting component includes a limiting plate, and the upper rear end of the limiting plate has a chamfer.

[0009] Preferably, a stabilizing mold closing mechanism is provided above the upper mold, and the actuator of the stabilizing mold closing mechanism controls the connection between the upper mold and the lower mold.

[0010] Preferably, the stable mold closing mechanism includes a threaded rod and a washer. The outer wall of the threaded rod is through and threadedly connected to the inner wall of the upper mold. The outer wall of the threaded rod located on the lower side of the upper mold is threadedly connected to the inner wall of the lower mold. The washer is located on the outside of the threaded rod (71).

[0011] Preferably, it further includes a fixing component, which is detachably connected to the upper mold and detachably connected to the lower mold.

[0012] Preferably, the fixing assembly includes a fixing plate, a first screw, and a second screw. The inner wall of the fixing plate has a first threaded hole, the front side of the upper mold has a second threaded hole, and the front side of the lower mold has a third threaded hole. The outer wall of the first screw is threaded to the first threaded hole, the outer wall of the first screw is threaded to the second threaded hole, the outer wall of the second screw is threaded to the first threaded hole, and the outer wall of the second screw is threaded to the third threaded hole.

[0013] Preferably, it also includes a splash-proof component, which is fixedly connected to the rear surface of the upper mold.

[0014] Preferably, the splash-proof assembly includes a baffle, wherein the angle between the lower surface of the baffle and the rear surface of the lower mold is less than 45 degrees.

[0015] Compared with the prior art, the beneficial effects of this application are: 1. This application uses a method of introducing glue into a glue storage tank through a connecting pipe and then spraying the glue out from the gap between the upper and lower molds, so that the glue can fall onto the surface of the transparent film by spraying, thereby achieving the effect of preventing adhesion during the glue application process.

[0016] 2. This application adopts a stable mold closing mechanism, which ensures that the upper and lower molds can be stably closed even when the gap between them is different in size. This ensures that when it is necessary to produce tapes of different viscosities, the equipment can achieve the desired effect by varying the amount of adhesive sprayed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram in this application; Figure 2 This is a schematic diagram of the splitting in this application; Figure 3 This is a schematic diagram of the connecting mechanism in this application; Figure 4 This is a schematic diagram of the rear structure in this application.

[0018] The components include: 1. Upper mold; 2. Lower mold; 3. Connecting pipe; 4. Glue spraying auxiliary pad; 5. Connecting mechanism; 51. Mounting base; 52. Rotating base; 53. Rotating shaft; 54. Moving groove; 55. Rotation angle limiting component; 551. Limiting plate; 552. Chamfer; 6. Glue storage tank; 7. Stable mold closing mechanism; 71. Threaded rod; 72. Washer; 8. Fixing component; 81. Fixing plate; 82. Screw one; 83. Screw two; 84. Threaded hole one; 85. Threaded hole two; 86. Threaded hole three; 9. Anti-splash component; 91. Baffle. Detailed Implementation

[0019] Reference Figure 1 - Figure 4 A slit spray nozzle includes an upper mold 1, a lower mold 2, a connecting pipe 3, and a spraying auxiliary pad 4. The upper mold 1 is positioned above the lower mold 2. The upper mold 1 and the lower mold 2 are connected by a connecting mechanism 5. The connecting mechanism 5 ensures that when the spraying auxiliary pad 4 needs to be replaced, the upper mold 1 and the lower mold 2 can remain connected without separation, thus making it easier to close and separate the two molds. The connecting pipe 3 is fixedly connected to the front surface of the lower mold 2 by bolts. A glue storage tank 6 is provided on the upper surface of the lower mold 2. The connecting pipe 3 is used to transfer glue into the glue storage tank 6. The end of the connecting pipe 3 away from the lower mold 2 is connected to a pump that injects glue into it. The interior of the connecting pipe 3 is in communication with the glue storage tank 6. The spraying auxiliary pad 4 is placed on the upper surface of the lower mold 2 behind the glue storage tank 6.

[0020] In this embodiment, during use, the front end of the connecting pipe 3 is first connected to the discharge end of the pump used to transport the glue. Then, the glue is transported into the connecting pipe 3 by the pump. Since there is pressure provided by the pump at the front end of the connecting pipe 3, the glue can enter the glue storage tank 6 under pressure. Since it is located at the gap between the upper mold 1 and the lower mold 2 at this time, the area behind the glue storage tank 6 is occupied by the glue spraying auxiliary pad 4. Therefore, the glue can only be sprayed out through the gap between the upper mold 1 and the lower mold 2. At this time, the transparent film is moved by the external rotating roller, so that the surface of the transparent film is covered by the sprayed glue, thereby achieving the effect of spraying glue on the surface of the transparent film to form an adhesive tape.

[0021] As a preferred method, the glue spraying auxiliary pad 4 is a U-shaped pad. The length and width of the glue spraying auxiliary pad 4 are the same as the length and width of the upper mold 1 and the lower mold 2. The inner width of the recessed area of ​​the glue spraying auxiliary pad 4 is greater than the length of the glue storage tank 6. The recessed area of ​​the glue spraying auxiliary pad 4 is set on the upper side and the rear side of the glue storage tank 6. By setting the shape of the glue spraying auxiliary pad 4, it is ensured that when the glue enters the glue storage tank 6, it cannot be sprayed out from the front side and the left and right side gaps of the upper mold 1 and the lower mold 2, but can only be sprayed out through the rear side gap of the upper mold 1 and the lower mold 2.

[0022] As a preferred embodiment, the connecting mechanism 5 includes a mounting base 51, a rotating base 52, a rotating shaft 53, a moving groove 54, and a rotation angle limiting component 55. The rear side of the mounting base 51 is fixedly connected to the front side of the lower mold 2. The mounting base 51 is L-shaped, and its upper part is located above the lower mold 2. The rear side of the rotating base 52 is fixedly connected to the front side of the upper mold 1. The rotating base 52 is located directly above the mounting base 51. The outer wall of the rotating shaft 53 passes through and is fixedly connected to the inner wall of the rotating base 52. The moving groove 54 is formed on the inner wall of the mounting base 51. The moving groove 54 ensures that the rotating shaft 53 has space to move up and down inside it. The distance between the rotating shaft 53 and the rear surface of the rotating base 52 is the same as the distance between the moving groove 54 and the rear surface of the mounting base 51. The rotation angle limiting component 55 is fixedly connected to the front side of the mounting base 51 and is used to limit the rotation angle between the upper mold 1 and the rotating base 52.

[0023] As a preferred embodiment, the rotation angle limiting component 55 includes a limiting plate 551, and a chamfer 552 is provided at the upper rear end of the limiting plate 551. When the rotating seat 52 rotates to contact the chamfer 552, it will be unable to continue rotating.

[0024] As a preferred embodiment, a stable mold closing mechanism 7 is provided above the upper mold 1. The execution end of the stable mold closing mechanism 7 controls and connects the upper mold 1 and the lower mold 2. The stable mold closing mechanism 7 is used to ensure that the upper mold 1 and the lower mold 2 can maintain a stable mold closing effect during use, even when the gap between the upper mold 1 and the lower mold 2 is different.

[0025] As a preferred embodiment, the stable mold closing mechanism 7 includes a threaded rod 71 and a washer 72. The outer wall of the threaded rod 71 is threaded through and connected to the inner wall of the upper mold 1. The top of the threaded rod 71 is provided with a hexagonal protrusion. The protrusion ensures that the operator can easily use tools such as wrenches to rotate it. The outer wall of the threaded rod 71 on the lower side of the upper mold 1 is threaded to the inner wall of the lower mold 2. The washer 72 is located on the outer side of the threaded rod 71. The washer 72 is used to increase the friction between the upper surface of the upper mold 1 and the lower surface of the protrusion on the top of the threaded rod 71, ensuring that the threaded rod 71 does not easily rotate during use. By rotating the threaded rod 71, the upper mold 1 and the lower mold 2 can be tightly connected. Since the thickness of the adhesive spraying auxiliary pad 4 is different, the gap thickness between the upper mold 1 and the lower mold 2 is different. The threaded rod 71 can ensure that the upper mold 1 and the lower mold 2 can maintain a stable mold closing state even when the thickness is different.

[0026] As a preferred embodiment, the system also includes a fixing component 8, which is used to maintain the upper mold 1 and the lower mold 2 in a stable mold-closing state. The fixing component 8 is detachably connected to the upper mold 1 and the lower mold 2.

[0027] As a preferred embodiment, the fixing assembly 8 includes a fixing plate 81, a first screw 82, and a second screw 83. The fixing plate 81 can be replaced according to the thickness of the gap between the upper mold 1 and the lower mold 2. The inner wall of the fixing plate 81 has a first threaded hole 84, the front side of the upper mold 1 has a second threaded hole 85, and the front side of the lower mold 2 has a third threaded hole 86. The outer wall of the first screw 82 is threaded to the first threaded hole 84, and the outer wall of the first screw 82 is threaded to the second threaded hole 85. The second screw... The outer wall of screw 83 is threaded to threaded hole 84, and the outer wall of screw 83 is threaded to threaded hole 86. In use, first, the rear surface of the fixing plate 81 is attached to the front surface of the lower mold 2, and then screw 83 is turned into threaded hole 84. After screw 83 passes through the fixing plate 81, it is turned into threaded hole 86. Then, screw 82 is turned into threaded hole 84 and threaded hole 85 in the same way to achieve the fixing effect of upper mold 1 and lower mold 2.

[0028] As a preferred embodiment, it also includes an anti-splash component 9, which is fixedly connected to the rear surface of the upper mold 1 and is used to guide the sprayed glue.

[0029] As a preferred embodiment, the anti-splash assembly 9 includes a baffle 91, the angle between the lower surface of the baffle 91 and the rear surface of the lower mold 2 being less than 45 degrees. By setting the direction of the baffle 91, it is ensured that the sprayed adhesive can fall to the position below its rear side, thereby ensuring that when the roller used to move the transparent film is placed in this position, the sprayed adhesive can fall onto the surface of the transparent film.

Claims

1. A slot die head characterized by, The assembly includes an upper mold (1), a lower mold (2), a connecting pipe (3), and a glue spraying auxiliary pad (4). The upper mold (1) is positioned above the lower mold (2). The upper mold (1) and the lower mold (2) are connected by a connecting mechanism (5). The connecting pipe (3) is fixedly connected to the front surface of the lower mold (2) by bolts. A glue storage groove (6) is provided on the upper surface of the lower mold (2). The interior of the connecting pipe (3) is connected to the glue storage groove (6). The glue spraying auxiliary pad (4) is placed on the upper surface of the lower mold (2) behind the glue storage groove (6).

2. A slot die according to claim 1, wherein: The adhesive spraying auxiliary pad (4) is a U-shaped pad. The length and width of the adhesive spraying auxiliary pad (4) are the same as the length and width of the upper mold (1) and the lower mold (2). The inner width of the recessed area of ​​the adhesive spraying auxiliary pad (4) is greater than the length of the glue storage tank (6). The recessed area of ​​the adhesive spraying auxiliary pad (4) is located on the upper and rear sides of the glue storage tank (6).

3. A slot die according to claim 1, wherein: The connecting mechanism (5) includes a mounting base (51), a rotating base (52), a rotating shaft (53), a moving groove (54), and a rotation angle limiting component (55). The rear side of the mounting base (51) is fixedly connected to the front side of the lower mold (2), and the rear side of the rotating base (52) is fixedly connected to the front side of the upper mold (1). The rotating base (52) is located directly above the mounting base (51). The outer wall of the rotating shaft (53) passes through and is fixedly connected to the inner wall of the rotating base (52). The moving groove (54) is opened on the inner wall of the mounting base (51). The distance between the rotating shaft (53) and the rear surface of the rotating base (52) is the same as the distance between the moving groove (54) and the rear surface of the mounting base (51). The rotation angle limiting component (55) is fixedly connected to the front side of the mounting base (51).

4. A slot die according to claim 3, wherein: The rotation angle limiting component (55) includes a limiting plate (551), and the upper rear end of the limiting plate (551) is provided with a chamfer (552).

5. A slot die according to claim 1, wherein: A stabilizing mold closing mechanism (7) is provided above the upper mold (1), and the execution end of the stabilizing mold closing mechanism (7) controls the connection between the upper mold (1) and the lower mold (2).

6. A slot die according to claim 5, wherein: The stable mold closing mechanism (7) includes a threaded rod (71) and a washer (72). The outer wall of the threaded rod (71) is threaded through and connected to the inner wall of the upper mold (1). The outer wall of the threaded rod (71) located on the lower side of the upper mold (1) is threaded to the inner wall of the lower mold (2). The washer (72) is located on the outside of the threaded rod (71).

7. A slot die according to claim 1, wherein: It also includes a fixing component (8), which is detachably connected to the upper mold (1) and detachably connected to the lower mold (2).

8. A slot die according to claim 7, wherein: The fixing component (8) includes a fixing plate (81), a screw one (82) and a screw two (83). The inner wall of the fixing plate (81) is provided with a threaded hole one (84). The front side of the upper mold (1) is provided with a threaded hole two (85). The front side of the lower mold (2) is provided with a threaded hole three (86). The outer wall of the screw one (82) is threaded to the threaded hole one (84). The outer wall of the screw one (82) is threaded to the threaded hole two (85). The outer wall of the screw two (83) is threaded to the threaded hole one (84). The outer wall of the screw two (83) is threaded to the threaded hole three (86).

9. A slot die according to claim 1, wherein: It also includes a splash guard (9), which is fixedly connected to the rear surface of the upper mold (1).

10. A slot die according to claim 9, wherein: The splash guard (9) includes a baffle (91) with an angle of less than 45 degrees between the lower surface of the baffle (91) and the rear surface of the lower mold (2).

Images