Detachable combined film spraying head

By designing a detachable modular coating head, the problems of complex cleaning and resource waste associated with integral coating heads are solved, enabling quick disassembly and replacement of components and improving production efficiency.

CN223931782UActive Publication Date: 2026-02-24ZHEJIANG ZHENLONG NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202520339603.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-24
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

The existing coating head has an integral structure, which makes cleaning complicated and maintenance difficult. Replacing it with different specifications is costly and results in serious waste of resources.

Method used

Design a detachable combined coating head, which enables quick disassembly of the lower mold body and the upper mold body through a locking mechanism and a disassembly mechanism, allowing for the separate disassembly of the upper mold lip and the lower mold lip, facilitating cleaning and quick component replacement.

Benefits of technology

It enables quick disassembly and cleaning of the coating head, reducing maintenance difficulty and resource waste, and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of film spraying equipment, and discloses a detachable combined film spraying head which comprises a lower die body, an upper die body used for being assembled into the film spraying head is arranged at the top end of the lower die body, and locking mechanisms used for locking the lower die body and the upper die body are arranged on the two sides of the outer wall of the lower die body. And dismounting mechanisms for dismounting the upper die lip and the lower die lip are arranged in the lower die body and the upper die body. According to the utility model, the lower die body and the upper die body are assembled into the combined laminating head, the locking of the lower die body and the upper die body is released by releasing the locking of the locking mechanism, so that the lower die body and the upper die body are conveniently detached, and the locking of the upper die lip and the lower die body and the locking of the lower die lip and the upper die body are released by releasing the locking of the detaching mechanism; and the upper die lip and the lower die lip are respectively detached out of the surfaces of the lower die body and the upper die body, so that the function of detaching the combined laminating head is realized.
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Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, specifically to a detachable combined coating head. Background Technology

[0002] The coating head is a core component of the coating production line. Its main function is to evenly spray film material onto the surface of other materials. During the coating process, plastic particles are plasticized by high temperature and screw, becoming molten. They are then extruded through the die lip of the coating head and adhered to the surface of flexible substrates such as paper, film, and non-woven fabric. After cooling, shaping, and pressing, a composite material is formed. Traditional coating heads are often monolithic structures, which present many inconveniences. For example, if internal blockage occurs, the monolithic structure makes disassembly difficult, and cleaning is complex and time-consuming, requiring professionals to spend a significant amount of time troubleshooting and resolving the problem. This leads to low production efficiency. Therefore, detachable, modular coating heads are needed.

[0003] However, existing technologies still have many shortcomings in practical use. For example, when it is necessary to replace the coating head with different specifications, such as different discharge widths and thicknesses, the integral coating head needs to be replaced as a whole, which is costly. Furthermore, if only some functional components of the original coating head are damaged, replacing the entire head results in a waste of resources. Utility Model Content

[0004] The purpose of this invention is to provide a detachable combined coating head, which solves the problem that the existing technology does not have the function of detachable combined coating heads, resulting in inconvenience in internal cleaning, maintenance, and quick replacement of parts according to different coating needs.

[0005] This utility model provides the following technical solution: a detachable combined coating head, including a lower mold body, an upper mold body for assembling into a coating head is provided at the top of the lower mold body, locking mechanisms for locking the lower mold body and the upper mold body are provided on both sides of the outer wall of the lower mold body, an upper die lip and a lower die lip for extruding plastic particle melt are provided on one side of the surface of the lower mold body and the upper mold body, and a disassembly mechanism for disassembling the upper die lip and the lower die lip is provided inside the lower mold body and the upper mold body.

[0006] As a preferred embodiment of the above technical solution, the lower mold body has a snap-fit ​​groove inside, and guide grooves are provided inside the lower mold body near both ends of the snap-fit ​​groove.

[0007] The above technical solution allows for easy insertion of the snap-fit ​​strip into the mold body via the snap-fit ​​groove, and the two sets of guide grooves facilitate the movement of the two sets of second connecting rods within the lower mold body.

[0008] As a preferred embodiment of the above technical solution, a snap-fit ​​strip is fixedly installed at the bottom of the upper mold body. The snap-fit ​​strip is snapped into the inside of the snap-fit ​​groove, and locking holes are provided at both ends of the snap-fit ​​strip.

[0009] The above technical solution allows for the insertion of two sets of lock heads into the two sets of lock holes, thereby locking the locking strip and the locking groove.

[0010] As a preferred embodiment of the above technical solution, the two sets of locking mechanisms include mounting bases. One side of each of the two sets of mounting bases is fixedly installed on both ends of the outer wall of the lower mold body. One side of each of the two sets of mounting bases is connected through to one side of the guide groove. A through hole is opened inside each of the two sets of mounting bases. A through groove is opened on the side of each of the two sets of mounting bases near the through hole. A first connecting rod is slidably installed inside each of the two sets of through holes. A second connecting rod is slidably installed inside each of the two sets of through grooves. One end of each of the two sets of second connecting rods is fixedly connected to one end of each of the two sets of first connecting rods. One end of each of the two sets of second connecting rods extends into the interior of the two sets of guide grooves. A lock head is fixedly connected to the end of each of the two sets of second connecting rods near the two sets of guide grooves. The lock heads are inserted into the interior of the two sets of lock holes.

[0011] Through the above technical solution, the staff simultaneously presses two sets of buttons, which move parallel inside the two sets of through holes. The two sets of parallel moving buttons drive two sets of second connecting rods to move parallel inside the through groove and guide groove via two sets of first connecting rods. This facilitates the two sets of parallel moving second connecting rods to drive the two sets of lock heads out of the two sets of lock holes, thereby facilitating the disengagement of the locking strip from the locking groove. The locking strip that has disengaged from the locking groove facilitates the disassembly of the upper mold body, realizing the function of quickly disassembling the upper mold body and the lower mold body.

[0012] As a preferred embodiment of the above technical solution, springs are fitted onto the surfaces of both sets of first connecting rods, and a push block is fixedly connected to the end of each set of first connecting rods away from the two sets of second connecting rods. The two ends of the two sets of springs respectively abut against the inner walls of the two sets of push blocks and the two sets of first connecting rods.

[0013] Through the above technical solution, the elastic force of two sets of springs drives two sets of second connecting rods and two sets of lock heads to reset, and the lock heads that are easy to reset are inserted into the inside of the two sets of lock holes.

[0014] As a preferred embodiment of the above technical solution, the two sets of disassembly mechanisms include connecting strips. The two sets of connecting strips are respectively fixedly installed on the surfaces of the lower mold body and the upper mold body. The interior of each set of connecting strips is provided with a sliding groove. The interior of each set of sliding grooves is provided with a slider. The top of each set of sliders is fixedly connected to the outer wall of the upper mold lip and the lower mold lip through a connecting crossbar.

[0015] Through the above technical solution, by unlocking the connecting strip and slider, the operator can easily push the upper mold lip and the lower mold lip to move in parallel. The parallel movement of the upper mold lip and the lower mold lip causes the two sets of sliders to slide inside the two sets of slide grooves until the two sets of sliders slide completely out of the two sets of slide grooves. The two sets of sliders that have slid out of the slide grooves respectively cause the upper mold lip and the lower mold lip to separate from the surface of the lower mold body and the upper mold body, thereby separating the upper mold lip and the lower mold lip from the surface of the lower mold body and the upper mold body, realizing the function of disassembling the upper mold lip and the lower mold lip from the lower mold body and the upper mold body.

[0016] As a preferred embodiment of the above technical solution, both sets of connecting strips and both sets of sliding grooves have insert rods inserted into their interiors through openings. The bottom ends of both sets of insert rods are fixedly connected with screw heads, and the surfaces of both sets of screw heads are threaded with screw sleeves.

[0017] With the above technical solution, the two sets of threaded sleeves can be manually screwed on by the staff to disengage from the surface of the two sets of threaded heads. The threaded sleeves that are disengaged from the surface of the threaded heads release the lock on the plug rod. The unlocked plug rod can then be pulled out by the staff from the insertion hole opened inside the connecting strip and the slider. The pulled-out plug rod facilitates the release of the lock between the connecting strip and the slider.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention assembles a lower mold body and an upper mold body into a combined coating head. By releasing the locking mechanism, the lower mold body and the upper mold body are unlocked, facilitating their disassembly. By releasing the disassembly mechanism, the upper mold lip is unlocked from the lower mold body, and the lower mold lip is unlocked from the upper mold body, allowing the upper and lower mold lips to be disassembled from the surfaces of the lower and upper mold bodies respectively. This enables the disassembly and disassembly of the combined coating head, solving the problems of inconvenient internal cleaning, maintenance, and quick component replacement according to different coating requirements. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a detachable combined coating head;

[0021] Figure 2 This is a schematic diagram of the lower mold structure of a detachable combined coating head;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a schematic diagram of the upper mold structure of a detachable combined coating head;

[0024] Figure 5 for Figure 4 Enlarged structural diagram at point B.

[0025] In the diagram: 1. Lower mold body; 101. Snap-fit ​​groove; 102. Guide groove; 2. Upper mold body; 201. Snap-fit ​​strip; 202. Locking hole; 3. Locking mechanism; 301. Mounting base; 302. Through hole; 303. Through groove; 304. First connecting rod; 305. Second connecting rod; 306. Lock head; 307. Spring; 308. Press block; 4. Upper mold lip; 5. Lower mold lip; 6. Disassembly mechanism; 601. Connecting strip; 602. Slide groove; 603. Slider; 604. Insert rod; 605. Screw head; 606. Screw sleeve. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] like Figures 1-5As shown, this utility model provides a technical solution: a detachable combined coating head, including a lower mold body 1, with a snap-fit ​​groove 101 inside the lower mold body 1, and guide grooves 102 at both ends of the lower mold body 1 near the snap-fit ​​groove 101. An upper mold body 2 for assembling into a coating head is provided at the top of the lower mold body 1, and a snap-fit ​​strip 201 is fixedly installed at the bottom of the upper mold body 2. The snap-fit ​​strip 201 is snapped into the snap-fit ​​groove 101, and locking holes 202 are provided at both ends of the snap-fit ​​strip 201. Locking mechanisms 3 for locking the lower mold body 1 and the upper mold body 2 are provided on both sides of the outer wall of the lower mold body 1. The two sets of locking mechanisms 3 include mounting bases 301. One side of each mounting base 301 is fixedly installed on both ends of the outer wall of the lower mold body 1. One side of each of the two sets of mounting bases 301 is connected through to one side of the guide groove 102. Each of the two sets of mounting bases 301 has a through hole 302 inside. Each of the two sets of mounting bases 301 has a through groove 303 on the side near the through hole 302. A first connecting rod 304 is slidably installed inside each of the two sets of through holes 302. A second connecting rod 305 is slidably installed inside each of the two sets of through grooves 303. One end of each of the two sets of second connecting rods 305 is fixedly connected to one end of each of the two sets of first connecting rods 304. One end of each of the two sets of second connecting rods 305 extends into the interior of each of the two sets of guide grooves 102. Each rod 305 has a lock head 306 fixedly connected to one end near the two sets of guide grooves 102. Both lock heads 306 are inserted into the interior of the two sets of lock holes 202. Springs 307 are fitted onto the surfaces of both sets of first connecting rods 304. A push block 308 is fixedly connected to the end of each set of first connecting rods 304 away from the two sets of second connecting rods 305. The two ends of the springs 307 respectively abut against the inner walls of the push blocks 308 and the first connecting rods 304. The elastic force of the springs 307 drives the second connecting rods 305 and the lock heads 306 to reset. The lock heads 306, which are designed for easy reset, are inserted into the interior of the two sets of lock holes 202. When it is necessary to lower... When disassembling the upper mold body 1 from the lower mold body 2, the operator simultaneously presses two sets of push blocks 308, which move parallel inside the two sets of through holes 302. The two sets of parallel-moving push blocks 308 drive two sets of second connecting rods 305 through two sets of first connecting rods 304 to move parallel inside the through groove 303 and guide groove 102. This facilitates the two sets of parallel-moving second connecting rods 305 to drive two sets of lock heads 306 out of the two sets of lock holes 202, thereby facilitating the disassembly of the snap-fit ​​strip 201 out of the snap-fit ​​groove 101. The snap-fit ​​strip 201, which is out of the snap-fit ​​groove 101, facilitates the disassembly of the upper mold body 2, thus realizing the function of quickly disassembling the upper mold body 2 from the lower mold body 1.

[0028] As one implementation method in this embodiment, such as Figure 1As shown, an upper die lip 4 and a lower die lip 5 for extruding molten plastic particles are provided on one side of the surface of the lower die body 1 and the upper die body 2. Both the lower die body 1 and the upper die body 2 are equipped with disassembly mechanisms 6 for disassembling the upper die lip 4 and the lower die lip 5. Each disassembly mechanism 6 includes a connecting strip 601, which is fixedly installed on the surfaces of the lower die body 1 and the upper die body 2 respectively. Each connecting strip 601 has a groove 602 inside, and a slider 603 is slidably installed inside each groove 602. The tops of both sets of sliders 603 are fixedly connected to the outer walls of the upper mold lip 4 and lower mold lip 5 via connecting crossbars. Insert rods 604 are inserted into the interiors of both sets of connecting bars 601 and both sets of sliding grooves 602 through pre-drilled holes. Screw heads 605 are fixedly connected to the bottom ends of both sets of insert rods 604. Threaded sleeves 606 are threaded onto the surfaces of both sets of screw heads 605. When it is necessary to disassemble the upper mold lip 4 and lower mold lip 5 from the surfaces of the lower mold body 1 and upper mold body 2, the two sets of threaded sleeves 606 are manually tightened by the operator. This allows the two sets of threaded sleeves 606 to disengage from the surfaces of the two sets of threaded heads 605. Once disengaged, the threaded sleeves 606 release the lock on the insert rod 604. The released insert rod 604 then allows the operator to easily pull it out of the insertion holes inside the connecting strip 601 and the slider 603. The released insert rod 604 also releases the lock on the connecting strip 601 and the slider 603, allowing the operator to easily push the upper mold lip 4 and the lower mold lip 5 for parallel movement. The upper mold lip 4 and the lower mold lip 5 drive the two sets of sliders 603 to slide inside the two sets of slide grooves 602 until the two sets of sliders 603 completely slide out of the two sets of slide grooves 602. The two sets of sliders 603 that slide out of the slide grooves 602 respectively drive the upper mold lip 4 and the lower mold lip 5 to separate from the surfaces of the lower mold body 1 and the upper mold body 2, thereby separating the upper mold lip 4 and the lower mold lip 5 from the surfaces of the lower mold body 1 and the upper mold body 2, realizing the function of disassembling the upper mold lip 4 and the lower mold lip 5 from the lower mold body 1 and the upper mold body 2.

[0029] Working principle: When it is necessary to disassemble the lower mold body 1 and the upper mold body 2, the operator presses two sets of buttons 308 simultaneously, which move in parallel inside the two sets of through holes 302. The two sets of parallel moving buttons 308 drive two sets of second connecting rods 305 through two sets of first connecting rods 304 to move in parallel inside the through groove 303 and guide groove 102. This facilitates the two sets of parallel moving second connecting rods 305 to drive two sets of lock heads 306 to disengage from the two sets of lock holes 202. This allows the snap-fit ​​strip 201 to disengage from the snap-fit ​​groove 101. The snap-fit ​​strip 201 disengaging from the snap-fit ​​groove 101 facilitates the disassembly of the upper mold body 2 and the lower mold body 1, thus achieving the function of quickly disassembling the upper mold body 2 and the lower mold body 1.

[0030] When it is necessary to disassemble the upper mold lip 4 and lower mold lip 5 from the surfaces of the lower mold body 1 and upper mold body 2, the operator manually screws on two sets of threaded sleeves 606. This allows the two sets of threaded sleeves 606 to disengage from the surfaces of the two sets of screw heads 605. Once disengaged, the threaded sleeves 606 release the lock on the insert rod 604. The unlocked insert rod 604 then allows the operator to easily pull it out of the insertion hole inside the connecting strip 601 and the slider 603. The pulled-out insert rod 604 releases the lock on the connecting strip 601 and the slider 603, facilitating further operation. Personnel push the upper mold lip 4 and the lower mold lip 5 to move them in parallel. The parallel movement of the upper mold lip 4 and the lower mold lip 5 causes the two sets of sliders 603 to slide inside the two sets of slide grooves 602 until the two sets of sliders 603 completely slide out of the two sets of slide grooves 602. The two sets of sliders 603 that slide out of the slide grooves 602 respectively cause the upper mold lip 4 and the lower mold lip 5 to separate from the surface of the lower mold body 1 and the upper mold body 2, thereby separating the upper mold lip 4 and the lower mold lip 5 from the surface of the lower mold body 1 and the upper mold body 2, realizing the function of disassembling the upper mold lip 4 and the lower mold lip 5 from the lower mold body 1 and the upper mold body 2.

[0031] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A detachable combined coating head, comprising a lower mold body (1), characterized in that: The lower mold body (1) is provided with an upper mold body (2) for assembling into a coating head at its top end. Both sides of the outer wall of the lower mold body (1) are provided with locking mechanisms (3) for locking the lower mold body (1) and the upper mold body (2). One side of the surface of the lower mold body (1) and the upper mold body (2) is provided with an upper die lip (4) and a lower die lip (5) for extruding plastic particle melt. The interior of the lower mold body (1) and the upper mold body (2) is provided with a disassembly mechanism (6) for disassembling the upper die lip (4) and the lower die lip (5).

2. The detachable combined coating head according to claim 1, characterized in that: The lower mold body (1) has a snap-fit ​​groove (101) inside, and guide grooves (102) are provided inside both ends of the lower mold body (1) near the snap-fit ​​groove (101).

3. The detachable combined coating head according to claim 1, characterized in that: A snap-fit ​​strip (201) is fixedly installed at the bottom of the upper mold body (2). The snap-fit ​​strip (201) is snapped into the inside of the snap-fit ​​groove (101). Locking holes (202) are provided at both ends of the snap-fit ​​strip (201).

4. A detachable combined coating head according to claim 1, characterized in that: Both sets of locking mechanisms (3) include mounting bases (301). One side of each of the two sets of mounting bases (301) is fixedly installed on both ends of the outer wall of the lower mold body (1). One side of each of the two sets of mounting bases (301) is connected through to one side of the guide groove (102). A through hole (302) is provided inside each of the two sets of mounting bases (301). A through groove (303) is provided on the side of each of the two sets of mounting bases (301) near the through hole (302). A first connecting rod (3) is slidably installed inside each of the two sets of through holes (302). 04), a second connecting rod (305) is slidably installed inside the two sets of through grooves (303). One end of each of the two sets of second connecting rods (305) is fixedly connected to one end of each of the two sets of first connecting rods (304). One end of each of the two sets of second connecting rods (305) extends into the interior of the two sets of guide grooves (102). A lock head (306) is fixedly connected to one end of each of the two sets of second connecting rods (305) near the two sets of guide grooves (102). Both sets of lock heads (306) are inserted into the interior of the two sets of lock holes (202).

5. A detachable combined coating head according to claim 4, characterized in that: Springs (307) are fitted on the surface of both sets of first connecting rods (304). A button (308) is fixedly connected to the end of each set of first connecting rods (304) away from the two sets of second connecting rods (305). The two ends of the two sets of springs (307) respectively abut against the inner walls of the two sets of button blocks (308) and the two sets of first connecting rods (304).

6. A detachable combined coating head according to claim 1, characterized in that: The two sets of disassembly mechanisms (6) include connecting strips (601). The two sets of connecting strips (601) are respectively fixedly installed on the surfaces of the lower mold body (1) and the upper mold body (2). The interior of the two sets of connecting strips (601) is provided with a sliding groove (602). The interior of the two sets of sliding grooves (602) is provided with a slider (603). The top of the two sets of sliders (603) is fixedly connected to the outer wall of the upper mold lip (4) and the lower mold lip (5) through a connecting crossbar.

7. A detachable combined coating head according to claim 6, characterized in that: Both sets of connecting strips (601) and both sets of sliding grooves (602) have insert rods (604) inserted into their interiors through the provided insertion holes. The bottom ends of both sets of insert rods (604) are fixedly connected with screw heads (605), and the surfaces of both sets of screw heads (605) are threaded with screw sleeves (606).