A high-efficiency film coating device for a mold

Abstract

This utility model relates to the field of mold coating technology and discloses a high-efficiency coating device for molds, including a base. Support legs are symmetrically fixedly connected to the bottom of the base, and conveying mechanisms are arranged on the left and right sides of the base. A coating mechanism is arranged on the top of the base. The symmetrical fixed frames cooperate with the front and rear rotating shafts and unwinding rollers to achieve stable unwinding of the coating material. A servo motor drive ensures precise unwinding speed, avoiding wrinkles or excessive stretching of the material due to uneven conveying. The unwinding rollers are fixed by slot insertion and bolts, making replacement convenient, shortening downtime for adjustment, and improving efficiency. When the cylinder drives the lifting plate to rise and fall, the guide rod, spring, and lifting frame work together to keep the coating material in a flat state, ensuring tight adhesion without air bubbles. It can also adapt to the slight undulations of the mold surface and is suitable for coating complex surfaces. A limit ring prevents the guide rod from slipping and ensures stable operation of the pressure adjustment mechanism.

Description

Technical Field

[0001] This utility model relates to the field of mold coating technology, specifically to a high-efficiency coating device for molds. Background Technology

[0002] During the production and storage of molds, to prevent the mold surface from being affected by bumps, oxidation, or stains, thus extending its precision and service life, a coating process is usually required. Traditional mold coating operations mostly rely on manual operation, where operators manually cover the mold surface with coating material and then press it together using simple tools. This is not only labor-intensive and inefficient, but the coating quality is also greatly affected by human factors, easily resulting in uneven coating, numerous air bubbles, and poor edge adhesion, making it difficult to meet the protection requirements of high-precision molds.

[0003] According to announcement number CN 222628613 U, a coating device for injection mold surface includes a processing table. A fixed frame is fixedly installed at the top center of the processing table. Support plates are welded to both sides of the upper surface of the fixed frame. A first coating film is rotatably installed between the two support plates. Limit brackets are rotatably installed on both sides of the inner wall of the fixed frame. An inner groove is opened at the middle position of the limit bracket. A bidirectional screw is rotatably installed at both ends of the inner wall of the inner groove. A movable frame is symmetrically installed at both ends of the outer surface of the bidirectional screw. A connecting plate is symmetrically rotatably installed on one side of the movable frame.

[0004] This device achieves a more uniform, multi-angle coating effect on the injection mold by rotating it along the inside of a fixed frame, thus improving the overall coating effect and solving the problem of inconvenient angle adjustment during mold coating, thereby reducing labor intensity. However, the device does not adjust the first coating film during the coating process, which can cause wrinkles in the first coating film, requiring manual adjustment and resulting in low efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency coating device for molds to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency coating device for molds, including a base, with supporting legs symmetrically fixedly connected to the bottom of the base in the front, back, left and right directions, conveying mechanisms on the left and right sides of the base, and a coating mechanism on the top of the base; The conveying mechanism includes a fixed frame, which is symmetrically fixedly connected to the left and right sides of the base. Rotary shafts are symmetrically arranged on the front and rear sides of the fixed frame near the top. An L-plate is fixedly connected to the front of the fixed frame, and a servo motor is fixedly connected to the front of the L-plate. A slot is provided at one end of the rotating shaft, and a unwinding roller is inserted into the slot. First fixed rods are symmetrically fixedly connected to the left and right sides of the top of the base. Fixed plates are fixedly connected to the top ends of the fixed rods on the left and right sides of the top of the base. A cylinder is fixedly connected to the bottom of the fixed plate, and a lifting plate is fixedly connected to the output end of the cylinder. Guide rods are symmetrically arranged on the top of the lifting plate, and limit rings are fixedly connected to the surface of the guide rods near the bottom. A lifting frame is fixedly connected to the top end of the guide rods. A spring is sleeved on the surface of the guide rods between the lifting plate and the lifting frame. Rotary rollers are rotatably connected to the front and rear sides of the inner wall of the lifting frame.

[0007] Preferably, the mounting bracket has holes on both the front and rear sides near the top that match the rotating shaft, with the rotating shaft surface passing through and rotatably connected to the holes, and the output end of the servo motor is fixedly connected to the front end of the rotating shaft on the front side of the mounting bracket.

[0008] Preferably, the rotating shaft and the unwinding roller are connected by bolts, and the top of the lifting plate has a hole that matches the guide rod, with the guide rod extending through the surface and sliding up and down within the hole.

[0009] Preferably, the bottom end of the spring is fixedly connected to the top of the lifting plate, the top end of the spring is fixedly connected to the bottom of the lifting frame, and the limiting ring limits the guide rod so that the guide rod will not slip out of the hole due to the elastic force of the spring.

[0010] Preferably, the coating mechanism includes a second fixing rod, which is symmetrically fixed to the top of the base. The top ends of the four fixing rods are fixedly connected to a fixing seat, the top of the fixing seat is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a lifting seat, the bottom of the lifting seat is fixedly connected to a mold base, the bottom of the lifting seat is fixedly connected to a ring cutter, and the top of the base is fixedly connected to a placement frame.

[0011] Preferably, the top of the lifting seat has a hole that matches the second fixed rod, and the lifting seat is slidably connected to the surface of the second fixed rod through the hole.

[0012] Preferably, the mold to be coated is placed in the placement frame, and the mold base corresponds to the mold to be coated, with the annular cutter located around the mold base.

[0013] Compared with the prior art, this utility model provides a high-efficiency coating device for molds, which has the following beneficial effects: This high-efficiency coating device for molds features symmetrically arranged fixed frames on both sides, along with rotating shafts and unwinding rollers on the front and rear sides. This ensures stable unwinding of the coating material, while the servo motor drive guarantees precise control of the unwinding speed, effectively preventing wrinkles or overstretching of the coating material due to uneven conveying speed. Furthermore, the unwinding roller and rotating shaft are connected via slots and secured with bolts, making roller replacement more convenient, significantly reducing downtime and improving overall operational efficiency. When the cylinder drives the lifting plate to rise and fall, the guide rod, spring, and lifting frame work together to create flexible pressure on the coating material, keeping it flat. This flexible pressure not only ensures a tight fit between the coating material and the mold surface, preventing air bubbles, but also adapts to subtle surface undulations, making it particularly suitable for coating molds with complex shapes. The limit ring effectively prevents guide rod slippage, ensuring stable operation of the pressure regulating mechanism.

[0014] This high-efficiency coating device for molds uses a hydraulic cylinder to drive the lifting seat downwards. The mold base first presses the coating material onto the mold surface to complete the coating process. Then, a ring cutter simultaneously cuts the coating material, eliminating the need for additional cutting steps. This reduces mold handling and transfer, lowers labor intensity, and avoids positioning deviations caused by multiple operations, significantly improving the accuracy and consistency of the coating process. The precise positioning of the mold by the placement frame and the guiding effect of the second fixing rod on the lifting seat further ensure the accuracy of the coating and cutting positions. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional structural schematic diagram of the present utility model; Figure 2 This is a three-dimensional schematic diagram of the structural fixing frame and unwinding roller of this utility model; Figure 3 for Figure 2 Enlarged 3D structural diagram at point A; Figure 4 This is a three-dimensional schematic diagram of the cylinder and lifting plate of this utility model; Figure 5 This is a three-dimensional schematic diagram of the coating mechanism of this utility model; Figure 6 This is a three-dimensional schematic diagram of the structural mold base and the annular cutter of this utility model.

[0016] In the diagram: 1. Base; 2. Support leg; 3. Conveying mechanism; 31. Fixing frame; 32. Rotating shaft; 33. L-plate; 34. Servo motor; 35. Slot; 36. Unwinding roller; 37. First fixing rod; 38. Fixing plate; 39. Cylinder; 311. Lifting plate; 312. Guide rod; 313. Limiting ring; 314. Lifting frame; 315. Spring; 316. Rotating roller; 4. Film coating mechanism; 41. Second fixing rod; 42. Fixing seat; 43. Hydraulic cylinder; 44. Lifting seat; 45. Mold base; 46. Circular cutter; 47. Placement frame. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] This utility model provides the following technical solution: Example 1

[0020] Please see Figure 1-4 This utility model provides a technical solution: a high-efficiency film coating device for molds, including a base 1, with support legs 2 symmetrically fixedly connected to the bottom of the base 1 in the front, back, left and right directions, conveying mechanisms 3 on the left and right sides of the base 1, and a film coating mechanism 4 on the top of the base 1. The conveying mechanism 3 includes a fixed frame 31, which is symmetrically fixedly connected to the left and right sides of the base 1. The fixed frame 31 has a rotating shaft 32 symmetrically arranged on the front and rear sides near the top. The fixed frame 31 has an L-plate 33 fixedly connected to the front. The L-plate 33 has a servo motor 34 fixedly connected to the front. One end of the rotating shaft 32 has a slot 35, and a unwinding roller 36 is inserted into the slot 35. The top left and right sides of the base 1 have a first fixed rod 37 symmetrically fixedly connected to the front and rear. The top of the fixed rods on the top left and right sides of the base 1 has a fixed plate 38 fixedly connected to the top. The bottom of the fixed plate 38 has a cylinder 39 fixedly connected to the bottom. The output end of the cylinder 39 has a lifting plate 311 fixedly connected to the top. The top of the lifting plate 311 has guide rods 312 symmetrically arranged on the front and rear. The surface of the guide rod 312 is fixedly connected to a limit ring 313 near the bottom. The top of the guide rod 312 has a lifting frame 314 fixedly connected to the top. The surface of the guide rod 312 is sleeved between the lifting plate 311 and the lifting frame 314. The inner wall of the lifting frame 314 has a rotating roller 316 rotatably connected to the front and rear sides.

[0021] The front and rear sides of the fixed frame 31 are provided with holes that match the rotating shaft 32 near the top. The rotating shaft 32 passes through the surface of the fixed frame 31 and is rotatably connected in the holes. The output end of the servo motor 34 is fixedly connected to the front end of the rotating shaft 32 on the front side of the fixed frame 31.

[0022] The rotating shaft 32 and the unwinding roller 36 are connected by bolts. The top of the lifting plate 311 has a hole that matches the guide rod 312, and the guide rod 312 passes through the surface and slides up and down in the hole.

[0023] The bottom end of the spring 315 is fixedly connected to the top of the lifting plate 311, and the top end of the spring 315 is fixedly connected to the bottom of the lifting frame 314. The limiting ring 313 limits the guide rod 312 so that the guide rod 312 will not slide out of the hole due to the elastic force of the spring 315. Example 2

[0024] Please see Figure 5-6 Furthermore, based on Example 1, a coating mechanism 4 was obtained.

[0025] The coating mechanism 4 includes a second fixed rod 41, which is symmetrically fixed to the top of the base 1. The top of the four fixed rods is fixedly connected to a fixed seat 42. The top of the fixed seat 42 is fixedly connected to a hydraulic cylinder 43. The output end of the hydraulic cylinder 43 is fixedly connected to a lifting seat 44. The bottom of the lifting seat 44 is fixedly connected to a mold base 45. The bottom of the lifting seat 44 is fixedly connected to a ring cutter 46. The top of the base 1 is fixedly connected to a placement frame 47.

[0026] The top of the lifting seat 44 has a hole that matches the second fixed rod 41, and the lifting seat 44 is slidably connected to the surface of the second fixed rod 41 through the hole.

[0027] The mold to be coated is placed in the placement frame 47, and the mold base 45 corresponds to the mold to be coated. The annular cutter 46 is located around the mold base 45.

[0028] In actual operation, before the lamination process, the roll of laminating material is first installed on the unwinding roller 36. This is achieved by inserting both ends of the unwinding roller 36 into the slots 35 of the rotating shaft 32 and securing it to the rotating shaft 32 with bolts. Simultaneously, the mold to be laminated is placed in the placement frame 47 on the top of the base 1, ensuring accurate mold positioning. After starting the device, the conveying mechanism 3 begins operation. The servo motor 34 on the front of the fixed frame 31 starts, and its output drives the connected rotating shaft 32 to rotate. Since the rotating shaft 32 is fixedly connected to the unwinding roller 36, the unwinding roller 36 rotates with the rotating shaft 32, thus unwinding the laminating material. During the conveying process, the cylinders 39 on the left and right sides of the top of the base 1 are activated. The output of the cylinders 39 pushes the lifting plate 311 downwards. The lifting plate 311, through the guide rod 312, drives the lifting frame 314 and the rotating roller 316 downwards, causing the rotating roller 316 to press against the surface of the laminating material. At this time, the spring 315 on the surface of the guide rod 312 is in a compressed state. The elastic force of the spring 315 causes the roller 316 to apply appropriate pressure to the coating material, ensuring that the coating material remains flat during the conveying process. At the same time, the guide rod 312 can slide up and down in the hole of the lifting plate 311, and the pressure is adaptively adjusted in conjunction with the spring 315. The limit ring 313 prevents the guide rod 312 from sliding out of the hole of the lifting plate 311. Driven by the servo motor 34 and in cooperation with the roller 316, the coating material is smoothly conveyed to the bottom of the coating mechanism 4. When the coating material is conveyed to the top of the mold to be coated, the coating mechanism 4 starts to operate. The hydraulic cylinder 43 at the top of the fixed seat 42 is activated, and its output end pushes the lifting seat 44 to slide down along the second fixed rod 41. During the descent of the lifting seat 44, the bottom mold base 45 first contacts the coating material and presses the coating material onto the mold surface in the placement frame 47, completing the coating operation. As the lifting seat 44 continues to descend, the annular cutter 46 located around the mold base 45 contacts the coating material and cuts it to match the mold shape. After coating and cutting are completed, the output end of the hydraulic cylinder 43 drives the lifting seat 44 to rise and reset, and the mold base 45 and the annular cutter 46 disengage from the mold and coating material. At the same time, the output end of the cylinder 39 drives the lifting plate 311 to rise, and the rotating roller 316 rises accordingly, relieving the pressure on the coating material. The servo motor 34 continues to drive the unwinding roller 36 to unwind, and the conveying mechanism 3 conveys the next section of coating material to the bottom of the coating mechanism 4 for the next coating operation. The operator can remove the completed mold from the placement frame 47 and place a new mold to be coated. Repeating the above process allows for continuous coating operations.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A high efficiency film coating device for a mold comprising a base (1), characterized in that: The base (1) has symmetrically fixed support legs (2) at the bottom, front, back, left and right. The base (1) has conveying mechanisms (3) on the left and right sides. The base (1) has a film covering mechanism (4) on the top. The conveying mechanism (3) includes a fixed frame (31), which is symmetrically fixedly connected to the left and right sides of the base (1). The fixed frame (31) has a rotating shaft (32) symmetrically arranged on the front and rear sides near the top. The fixed frame (31) has an L-plate (33) fixedly connected to the front side. The L-plate (33) has a servo motor (34) fixedly connected to the front side. One end of the rotating shaft (32) has a slot (35), and a unwinding roller (36) is inserted into the slot (35). The top left and right sides of the base (1) are symmetrically fixedly connected to the first fixing rod (37). The top of the fixing rod on the top left and right sides of the base (1) is fixedly connected to the first fixing rod (37). A fixed plate (38) is fixedly connected, and a cylinder (39) is fixedly connected to the bottom of the fixed plate (38). A lifting plate (311) is fixedly connected to the output end of the cylinder (39). Guide rods (312) are symmetrically arranged at the top front and back of the lifting plate (311). A limit ring (313) is fixedly connected to the surface of the guide rod (312) near the bottom. A lifting frame (314) is fixedly connected to the top of the guide rod (312). A spring (315) is sleeved between the lifting plate (311) and the lifting frame (314) on the surface of the guide rod (312). Rollers (316) are rotatably connected to the front and back sides of the inner wall of the lifting frame (314).

2. The high efficiency film lamination device for a mold according to claim 1, characterized in that: The mounting bracket (31) has holes on its front and rear sides near the top that match the rotating shaft (32). The rotating shaft (32) passes through the surface and is rotatably connected to the hole. The output end of the servo motor (34) is fixedly connected to the front end of the rotating shaft (32) on the front of the mounting bracket (31).

3. The high efficiency film lamination device for a mold of claim 1, wherein: The rotating shaft (32) and the unwinding roller (36) are connected by bolts. The top of the lifting plate (311) is provided with a hole that matches the guide rod (312), and the guide rod (312) is slidably connected to the hole through the surface of the guide rod (312).

4. The high efficiency film lamination device for a mold of claim 1, wherein: The bottom end of the spring (315) is fixedly connected to the top of the lifting plate (311), the top end of the spring (315) is fixedly connected to the bottom of the lifting frame (314), and the limiting ring (313) limits the guide rod (312).

5. The high efficiency film lamination device for a mold of claim 1, wherein: The film coating mechanism (4) includes a second fixed rod (41), which is symmetrically fixed to the top of the base (1) in the front, back and left and right. The top of the four fixed rods is fixedly connected to a fixed seat (42), the top of the fixed seat (42) is fixedly connected to a hydraulic cylinder (43), the output end of the hydraulic cylinder (43) is fixedly connected to a lifting seat (44), the bottom of the lifting seat (44) is fixedly connected to a mold seat (45), the bottom of the lifting seat (44) is fixedly connected to a ring cutter (46), and the top of the base (1) is fixedly connected to a placement frame (47).

6. The high efficiency film lamination device for a mold of claim 5, wherein: The top of the lifting seat (44) is provided with a hole that matches the second fixed rod (41), and the lifting seat (44) is slidably connected to the surface of the second fixed rod (41) through the hole.

7. The high efficiency film lamination device for a mold of claim 5, wherein: The placing frame (47) is used to place a mold to be coated, the mold base (45) corresponds to the mold to be coated, and the annular cutter (46) is located around the mold base (45).

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