Sliding table type in-mold coating mechanism, injection molding coating equipment and control system of injection molding coating equipment

Abstract

The utility model relates to a sliding table type in-mold coating mechanism, injection molding coating equipment and a control system of the injection molding coating equipment, and aims to solve the problems that in the prior art, injection molding products need to be transferred for multiple times to complete coating, so that the production efficiency is low, the product yield is reduced, and in a traditional sliding table scheme, equipment abrasion is large due to uneven stress of a core pulling pull rod. The forming half mold and the coating half mold are assembled with the first half mold through the sliding structure, the coating procedure can be directly completed in the mold after injection molding is completed, and the production efficiency and the product yield are remarkably improved. Moreover, by adopting the central core-pulling and double-sliding-rail structural design, the phenomena of deformation caused by uneven stress of the core-pulling pull rod and friction and clamping of the sliding rails are effectively avoided, the stability of the equipment is improved, and the service life of the equipment is prolonged. In addition, the utility model further provides a plurality of different sliding table configuration schemes so as to adapt to diversified requirements of different customers, and the flexibility and market competitiveness of the equipment are further improved.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding equipment, and in particular to a sliding table type in-mold coating mechanism, injection molding coating equipment and a control system thereof. Background Art

[0002] With the continuous improvement of industrial automation, injection molding equipment technology has also experienced rapid development. Traditional injection molding processes typically utilize a one-shot molding process. After completion, the semi-finished product must be transferred to other equipment for further processing, such as polyurethane (PU) coating. This approach not only lengthens the production line and increases production costs, but also leads to inconsistent product quality and reduced production efficiency due to frequent manual intervention. Furthermore, the plastic substrate is prone to deformation during transportation between different equipment, affecting the quality and yield of the final product.

[0003] The existing in-mold coating mechanism still has some limitations. For example, the Chinese patent CN114147915A document discloses an in-mold spraying system and its process method, in which a fixed plate is provided on the movable mold plate, a sliding groove is provided at the bottom of the fixed plate, a sliding guide rail is provided inside the sliding groove, and the sliding guide rail is fixedly mounted on a mold mounting plate, and the second half mold and the third half mold are fixed on the mold mounting plate; a mold cylinder is provided above the fixed plate, and the mold cylinder piston rod is connected to a movable plate, which is fixedly connected to the mold mounting plate and drives the mold mounting plate to slide along the sliding groove. In the slide mold structure of this patent, the piston rod is located at one end of the mold. Under long-term use, this structure is prone to cause the piston rod to deform due to uneven force, which in turn affects the normal operation of the slide rail, and even causes the rail to get stuck, shortening the service life of the mold and affecting the normal production of customers.

[0004] Furthermore, the sliding table solutions currently available on the market often have relatively simple motion sequences and structural forms, making them difficult to adapt to the diverse mold structures required during the new product development phase. This limitation restricts companies' ability to rapidly iterate new products and respond to market demands. Utility Model Content

[0005] In order to solve one or more problems in the prior art, the present application provides a sliding table in-mold coating mechanism in the first aspect, comprising:

[0006] a first template and a second template arranged opposite to the first template;

[0007] a first half mold, the first half mold being disposed on a side of the first template close to the second template or a side of the second template close to the first template;

[0008] a second half mold adapted to the first half mold, the second half mold being arranged on a side of another template opposite to the template provided with the first half mold and close to the first half mold;

[0009] A sliding structure comprising at least two slide rails and a power member, wherein the slide rails are disposed on templates on both sides of the second mold half, and the second mold half cooperates with the slide rails to enable the second mold half to slide on the template; the power member is connected to the second mold half, with the connection point being equidistant from the slide rails on both sides of the second mold half, so as to drive the second mold half to move along the extension direction of the slide rails;

[0010] The second half mold is provided with a forming half mold and a painting half mold arranged along the extending direction of the slide rail. The forming half mold and the painting half mold can be respectively combined with the first half mold to form a forming mold cavity and a painting mold cavity.

[0011] In some embodiments of the present application, the sliding in-mold coating mechanism further includes a mounting plate, at least one of the first template and the second template is provided with the mounting plate, and the second half mold is slidably set on the mounting plate through the slide rail.

[0012] In some embodiments of the present application, the sliding structure further includes a guide member;

[0013] The first template is slidably arranged on the guide member, and the second template is arranged in the sliding direction of the first template; or

[0014] The second template is slidably arranged on the guide member, and the first template is arranged in the sliding direction of the second template to realize the mold closing and mold opening operations of the first half mold and the second half mold.

[0015] In some embodiments of the present application, the sliding table in-mold coating mechanism further includes a paint mixing head, and the paint mixing head is connected to the coating half mold or the first half mold.

[0016] The second aspect of the present application provides an injection molding and coating equipment, including the mechanism described in any of the above embodiments, and also including an injection molding device and a paint injection device. The injection molding device is connected to the molding cavity and is used for injection molding to prepare a substrate. The paint injection device is connected to the coating cavity and is used for surface treatment of the substrate.

[0017] The third aspect of the present application provides an injection molding and coating equipment control system, including the above-mentioned injection molding and coating equipment, and also including a main control device and a sensor. The main control device is used to control the movement of the sliding structure, and the sensor is used to sense the position of the second half mold and output a sensing signal to the main control device.

[0018] One or more of the above embodiments of the present application have at least the following beneficial effects:

[0019] The present application provides a sliding table in-mold coating mechanism, injection molding and coating equipment and its control system. First, by integrating the injection molding and in-mold coating functions, the step of transferring the product to another device for coating after injection molding on the traditional production line is eliminated, and an integrated operation from injection molding to coating is realized, which reduces the time loss between processes and significantly improves production efficiency. Second, it avoids the secondary clamping positioning error and possible deformation problems caused by product transfer in traditional processes, ensures the dimensional accuracy and appearance quality of the product, and thus improves the product qualification rate. Third, the design of the new sliding table in-mold coating mechanism makes operation easier, reduces the requirements for operator skills, reduces the difficulty of operation, and also reduces errors caused by human factors. Fourth, by adopting the center core pulling and double slide rail structure design, the problem of uneven force on the core pulling rod in the traditional slide solution is effectively solved, equipment wear is reduced, the stability and reliability of the equipment are improved, and the service life of the equipment is extended. Fifth, a variety of different slide movement configuration options are provided, which can better meet the needs of different customers for new product development and enhance the applicability and market competitiveness of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of a sliding table type in-mold coating mechanism provided by an exemplary embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the sliding structure of a sliding table type in-mold coating mechanism provided by an exemplary embodiment of the present application;

[0023] Figure 3 is a structural schematic diagram of a sliding table type in-mold coating mechanism provided by another exemplary embodiment of the present application;

[0024] Figure 4 1 is a schematic diagram of the sliding structure of a sliding table type in-mold coating mechanism provided by another exemplary embodiment of the present application;

[0025] Figure 5 1 is a structural diagram of a sliding table type in-mold coating mechanism provided by another exemplary embodiment of the present application;

[0026] Figure 6 Schematic diagram of the sliding structure of a sliding table type in-mold coating mechanism provided by another exemplary embodiment of the present application;

[0027] Figure 71 is a structural diagram of a sliding table type in-mold coating mechanism provided by another exemplary embodiment of the present application;

[0028] Figure 8 Schematic diagram of the sliding structure of a sliding table type in-mold coating mechanism provided by another exemplary embodiment of the present application;

[0029] Figure 9 It is a structural schematic diagram of an injection molding and coating device provided by an exemplary embodiment of the present application;

[0030] Figure 10 This is a schematic diagram of the workflow of an injection molding and coating device provided by an exemplary embodiment of the present application;

[0031] Figure 11 This is a flow chart of the sliding structure action of the injection molding and coating equipment provided by an exemplary embodiment of the present application.

[0032] Reference numerals:

[0033] 100, sliding table in-mold coating mechanism; 110, first mold plate; 120, second mold plate; 130, first mold half; 140, second mold half; 141, forming mold half; 1411, forming mold cavity; 142, coating mold half; 1421, coating mold cavity; 150, sliding structure; 151, slide rail; 152, power member; 153, guide member; 160, mounting plate; 170, paint mixing head;

[0034] 200. Injection coating equipment; 210. Injection molding device; 220. Paint injection device;

[0035] a. Base material. DETAILED DESCRIPTION

[0036] Embodiments of the present application will be described in detail below, examples of which are illustrated in the accompanying drawings. Generally, the components of the embodiments of the present application described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but rather merely represents selected embodiments of the present application.

[0037] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0038] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0040] The following will be combined Figure 1 and Figure 11 The technical solution of the present application is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0041] See Figures 1 to 8 As shown, a sliding table type in-mold coating mechanism 100 provided in the first aspect of the present application includes: a first template 110, a second template 120, a first half mold 130, a second half mold 140 and a sliding structure 150.

[0042] Among them, the first template 110 and the second template 120 are arranged opposite to each other, the first half mold 130 is arranged on the side of the first template 110 facing the second template 120, the first half mold 130 is adapted to the second half mold 140, and the second half mold 140 is arranged on the side of the second template 120 facing the first template 110.

[0043] The sliding structure 150 includes at least two slide rails 151 and a power member 152. The two slide rails 151 are respectively arranged on the second template 120 on both sides of the second half mold 140. The two sides of the second half mold 140 cooperate with the slide rails 151 to enable the second half mold 140 to slide on the second template 120; the power member 152 is connected to the second half mold 140, and the connection point is at the same distance from the slide rails 151 on both sides of the second half mold 140, and is used to drive the second half mold 140 to move along the extension direction of the slide rails 151.

[0044] The second half mold includes a molding half mold 141 and a coating half mold 142 arranged along the extending direction of the slide rail 151 . The molding half mold 141 and the coating half mold 142 can respectively form a molding cavity 1411 and a coating cavity 1421 with the first half mold 130 .

[0045] The first template 110 and the second template 120 are main supporting structures of the sliding table type in-mold coating mechanism 100 and are usually fixed on a frame, guide rails, guide members or other fixing devices.

[0046] The first template 110 and the second template 120 are arranged relative to each other, which means that the two templates are aligned in space. When the sliding in-mold coating mechanism 100 is working, the two templates will drive the half molds (the first half mold 130 and the second half mold 120) thereon to close or separate.

[0047] In some embodiments of the present application, the first template 110 and the second template 120 may be arranged in parallel.

[0048] In some embodiments of the present application, the first template 110 and the second template 120 may also be set non-parallel, but the first half mold 130 and the second half mold 140 should be adjusted according to the inclination angle of the template so that when the two templates are close to a certain extent, the two half molds can achieve the mold closing operation.

[0049] The first mold half 130 and the second mold half 140 are adapted to each other, indicating that the two mold halves can be closed to form a cavity. The embodiment of the present application does not limit the shape and specifications of the mold halves, and can be adjusted according to actual production.

[0050] The embodiment of the present application does not limit the specific positions of the first half mold 130 and the second half mold 140 on the two templates, but the positions of the two should correspond, that is, when the two templates are close to a certain extent, the two half molds can achieve the mold closing operation.

[0051] In some embodiments of the present application, the first half mold 130 may also be disposed on the second template 120 , and the second half mold 140 may also be disposed on the first template 110 .

[0052] In some embodiments of the present application, the first half mold 130 is provided with a structure such as a snap or groove, so that the substrate a is attached to the first half mold 130 instead of the second half mold 140 after the injection molding is completed. This is a conventional technical means in the field and will not be described in detail in the embodiments of the present application.

[0053] In some embodiments of the present application, the slide rail 151 may be a linear guide rail, a ball guide rail, a plane guide rail, etc. The cooperation between the second half mold 140 and the slide rail 151 means that the second half mold 140 and the slide rail 151 are connected through a specific cooperation structure, such as a slider or a guide groove, so that the second half mold 140 can slide smoothly on the slide rail 151.

[0054] In some embodiments of the present application, the power element 152 may be a core-pulling cylinder, an electric motor, a hydraulic cylinder, a pneumatic cylinder, or another form of power device. The appropriate type of power element 152 can be selected based on actual needs and the working environment. In one specific example of the present application, the power element 152 is a core-pulling cylinder. The piston rod of the core-pulling cylinder directly pushes or pulls the second mold half 140 along the slide rail 151 by extending and retracting. This drive method is suitable for applications requiring high thrust and fast response.

[0055] In some embodiments of the present application, the output shaft or piston rod of the power member 152 can be directly fixedly connected to the center position of the rear end face or the front end face of the second half mold 140, so that the driving force provided is located in the middle position of the two side slide rails 151, and the direction of the driving force is along the extension direction of the slide rails 151, and is parallel to the plane determined by the two slide rails 151, so as to ensure that the second half mold 140 is evenly stressed and avoid the slide rail 151 from being stuck due to friction due to uneven force.

[0056] In some embodiments of the present application, the output shaft or piston rod of the power member 152 can be connected to the second mold half 140 through a connecting rod mechanism, gear transmission, or belt transmission. This connection method is suitable for long-stroke or multi-degree-of-freedom motion requirements, and can achieve more complex motion trajectories and higher flexibility.

[0057] The forming half 141 is primarily used for the product forming process. It is typically made of high-strength materials such as steel or aluminum alloy to ensure shape stability and durability under high pressure and high temperature environments. The inner surface of the forming half 141 is designed with grooves or protrusions that match the product shape to ensure precise product formation.

[0058] The coating half-mold 142 is primarily used for surface treatment processes such as spraying and coating. The inner surface of the coating half-mold 142 is typically designed with evenly spaced nozzles or coating devices to ensure that the coating is evenly applied to the product surface. Furthermore, the coating half-mold 142 may be equipped with a heating device to accelerate the drying process of the coating.

[0059] The forming half mold 141 and the coating half mold 142 are arranged in sequence along the extension direction of the slide rail 151. The order of their arrangement should be determined in conjunction with their movement direction, with the substrate being formed first and then coated. The arrangement of the two can be made by using structural parts to form a moving whole. The specific details of the arrangement, such as the direction and height of the two, should be based on the ability to achieve mold closing operation with the first half mold 130. Those skilled in the art can adjust them according to actual production. This layout design allows the product to seamlessly transition from the forming process to the surface treatment process, improving production efficiency and product quality. Specifically:

[0060] The first mold half 130 is first joined with the molding mold half 141 to form a molding cavity 1411. Molding cavity 1411 is used to contain molten material, which is filled by pressure or gravity and ultimately solidified to form the desired product. The surface of molding cavity 1411 is specially treated, such as spraying a release agent or using an anti-sticking material, to facilitate demolding of the product. The substrate a is molded in molding cavity 1411. After molding is completed, the mold is opened, and substrate a is attached to the first mold half 130. At this time, the power member 152 drives the second mold half 140 along the slide rail 151 until the coating mold half 142 reaches a position where it can be joined with the first mold half 130. After the molds are joined, a coating cavity 1421 is formed. The coating cavity 1421 is used to perform surface treatment on the molded product, such as spraying paint or applying a protective layer. The molded substrate a enters the coating cavity 1421 for the surface treatment process.

[0061] In some embodiments of this application, see Figures 1-8 In order to achieve richer sliding movements and meet users' needs for diverse mold structures in the new product stage, the present application has made different configurations for the sliding methods, that is, the setting positions of the first template 110 and the second template 120 can be swapped or adaptively adjusted to other setting directions, the setting position of the first half mold 130 on the first template 110 can also be adaptively adjusted, and the setting position of the second half mold 140 on the second template 120 can be adjusted in conjunction with the first half mold 130. The moving direction of the second half mold 140 can also be upward, forward, backward, etc., as long as the molding half mold 141 and the coating half mold 142 can be combined with the first half mold 130 before and after movement.

[0062] In some embodiments of the present application, the sliding in-mold coating mechanism 100 further includes a mounting plate 160 , which is disposed on the second mold plate 120 , and the second half mold 140 is slidably disposed on the mounting plate 160 via a slide rail 151 .

[0063] One of the main functions of the mounting plate 160 is to provide a stable platform for the sliding of the second mold half 140. The mounting plate 160 is usually made of high-strength material, such as cast iron or high-strength steel plate, to ensure that it maintains structural stability and durability during long-term use.

[0064] In some embodiments of the present application, the connection between the mounting plate 160 and the second template 120 can be achieved by reliable fixing methods such as bolt connection, welding, and clamping to ensure that the mounting plate 160 is firmly fixed to the second template 120.

[0065] In some embodiments of the present application, the first half mold 130 is also mounted on the first mold plate 110 via a mounting plate 160 .

[0066] The second mold half 140 is slidably mounted on a mounting plate 160 via a slide rail 151. Specifically, the slide rail 151 is fixed to the mounting plate 160, and the second mold half 140 engages with the slide rail 151 via a slider or guide rail seat, sliding along the extension direction of the slide rail 151. This sliding arrangement allows the second mold half 140 to move smoothly between the molding and coating processes, improving production efficiency and product quality.

[0067] In some embodiments of the present application, see Figure 1 and Figure 3 The sliding structure 150 also includes a guide member 153, the first template 110 is slidably set on the guide member 153, and the second template 120 is set in the sliding direction of the first template 110 to realize the closing and opening operations of the first half mold 130 and the second half mold 140.

[0068] Guide member 153 is primarily used to facilitate the sliding of the formwork. It is typically secured to a frame or other fixture to ensure stability and durability during extended use. The material selection for guide member 153 should consider strength and wear resistance. Common materials include high-strength steel and stainless steel.

[0069] In some embodiments of the present application, the first template 110 cooperates with the guide member 153 via a sliding device such as a guide rail to achieve sliding movement on the guide member 153. This sliding arrangement enables the first template 110 to move horizontally, thereby adjusting its position relative to the second template 120. The sliding range and accuracy of the first template 110 can be achieved by adjusting the design of the slider or guide rail seat.

[0070] In some embodiments of the present application, the second mold plate 120 is fixedly positioned in the sliding direction of the first mold plate 110. When the first mold plate 110 slides along the guide member 153, the second mold plate 120 remains stationary. This design ensures that the relative position between the first mold plate 110 and the second mold plate 120 can be precisely controlled, thereby enabling the closing and opening operations of the first mold half 130 and the second mold half 140.

[0071] In some embodiments of the present application, the second mold plate 120 may also be slidably disposed on the guide member 153, as long as the mold closing and opening operations of the first mold half 130 and the second mold half 140 can be achieved. Figure 5 and Figure 7 The second template 120 is slidably arranged on the guide member 153, and the first template 110 is arranged in the sliding direction of the second template 120 to realize the mold closing and mold opening operations of the first half mold 130 and the second half mold 140.

[0072] The relative sliding of the first and second mold plates 110, 120 enables the closing and opening of the first and second mold halves 130, 140. Specifically, when the first mold plate 110 slides toward the second mold plate 120, the first and second mold halves 130, 140, and the molding half 141 or coating half 142 close together, forming a complete mold cavity. When the first mold plate 110 slides away from the second mold plate 120, the first and second mold halves 130, 141, 142 separate, completing the mold opening operation.

[0073] To achieve precise sliding of the first template 110, the slide-type in-mold coating mechanism 100 further includes a drive member (not shown). The drive member is typically an electric cylinder, a pneumatic cylinder, or a servo motor, which, through a connection structure (such as a connecting rod or a linkage mechanism) with the first template 110, drives the first template 110 to move precisely and smoothly along the guide member 153. The drive member can be controlled by a control system to ensure that the first template 110 moves according to a preset trajectory and speed.

[0074] In some embodiments of the present application, the sliding table in-mold coating mechanism 100 further includes a paint mixing head 170 , which is connected to the coating half-mold 142 and thus communicates with the coating mold cavity 1421 .

[0075] The connection between the paint mixing head 170 and the coating mold half 142 can be a threaded connection, a flange connection, or another quick-connect joint. A sealing ring or gasket is provided at the connection to ensure a tight seal and prevent paint leakage. The paint is mixed through the paint mixing head 170 and enters the coating mold cavity 1421, ultimately being coated on the surface of the substrate a.

[0076] In some embodiments of the present application, the sliding table in-mold coating mechanism 100 also includes a mold ejection device (not shown in the figure). The mold ejection device can be arranged in the first half mold 130 and ejects it after the product is prepared. This component belongs to conventional means in this field and will not be described in detail in the embodiments of the present application.

[0077] The second aspect of the embodiment of the present application provides an injection coating device 200, see Figure 9 As shown, it includes the sliding table type in-mold coating mechanism 100 in the above embodiment, and also includes an injection device 210 and a paint injection device 220. The injection device 210 is connected to the molding cavity 1411, and the paint injection device 220 is connected to the coating cavity 1421.

[0078] In some embodiments of the present application, see Figure 9 As shown, the first mold half 130 can be connected to the injection molding device 210 and can also be connected to the paint injection device 220 via the paint mixing head 170. When the first mold half 130 and the molding mold half 141 are combined to form the molding cavity 1411, the injection molding device 210 injects material into the molding cavity 1411 through the first mold half 130 to form the substrate. When the first mold half 130 and the coating mold half 142 are combined to form the coating cavity 142, the paint injection device 220 injects the coating material into the coating cavity 1421 through the paint mixing head 170 to perform the surface treatment process on the substrate.

[0079] The injection molding device 210 is a key component of the injection molding and coating equipment 200. Its main function is to inject molten plastic into the molding cavity 1411 to form the desired product. Specifically, the injection molding device 210 may include:

[0080] Injection unit: The injection molding device 210 includes one or more injection units, each of which is responsible for injecting molten plastic into the molding cavity 1411. The injection unit usually includes components such as a heating cylinder, a screw, and a nozzle to ensure uniform heating and accurate injection of the plastic.

[0081] Control unit: The injection molding device 210 is equipped with an advanced control unit that can accurately control parameters such as injection pressure, temperature and speed to ensure the stability and repeatability of the injection molding process.

[0082] Cooling system: The injection molding device 210 is also equipped with a cooling system to accelerate the curing process of the product and shorten the production cycle. The cooling system can be water-cooled or air-cooled, and the appropriate cooling method is selected according to actual needs.

[0083] The paint injection device 220 is another key component of the injection coating equipment 200. Its main function is to inject paint into the coating cavity 1421 to achieve surface coating of the product. Specifically, the paint injection device 220 may include:

[0084] Injection unit: The paint injection device 220 includes one or more injection units, each of which is responsible for injecting paint into the coating half-mold 142. The injection unit usually includes components such as a storage tank, a pump, and a nozzle to ensure accurate metering and uniform distribution of the paint.

[0085] Mixing unit: The paint injection device 220 may also be equipped with a paint mixing head 170 (as described above) for fully mixing the paint before injection to ensure uniformity and consistency of the coating.

[0086] Control unit: The paint injection device 220 is also equipped with an advanced control unit that can accurately control parameters such as paint injection volume, pressure and speed to ensure the stability and repeatability of the painting process.

[0087] In some embodiments of the present application, the injection molding device 210 may be a screw injection molding machine: the rotation of the screw melts the plastic particles and injects them into the rotary in-mold coating mechanism 100. Screw injection molding machines have high melting efficiency and good mixing effects and are suitable for various plastic materials. In other embodiments of the present application, the injection molding device 210 may also be a plunger injection molding machine, a hydraulically driven injection molding machine, or an electrically driven injection molding machine, etc. This embodiment is not limited to this. It is sufficient to be able to inject the material into the molding cavity 1411 of the rotary in-mold coating mechanism 100 to form the substrate a.

[0088] In some embodiments of the present application, the material input by the injection molding device 210 into the rotary in-mold coating mechanism 100 can be a thermoplastic, such as polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), polystyrene (PS), polycarbonate (PC), polyamide (PA), etc. These plastics have good processing and mechanical properties and are suitable for various injection molding applications. Alternatively, it can be a thermosetting plastic, such as epoxy resin, phenolic resin, unsaturated polyester resin, etc. These plastics have high strength and heat resistance after heat curing and are suitable for injection molding with special performance requirements. Alternatively, it can be a composite material, such as glass fiber reinforced plastic (GFEP) and carbon fiber reinforced plastic (CFRP). These composite materials have high strength and rigidity and are suitable for high-performance injection molding applications. Alternatively, it can be an engineering plastic, such as nylon (Nylon), polyoxymethylene (POM), polyetheretherketone (PEEK), etc. These plastics have excellent mechanical properties and chemical resistance and are suitable for high-performance injection molding applications.

[0089] In some embodiments of the present application, the paint injection device 220 is a high-pressure spray device that sprays the paint onto the substrate surface using high pressure, suitable for applications requiring high coating uniformity and coverage. This embodiment is not limited to this, and the paint can be injected into the coating cavity 1421 of the rotary in-mold coating mechanism 100 to achieve in-mold coating.

[0090] In some embodiments of the present application, the coating that the coating injection device 220 inputs into the rotary in-mold coating mechanism 100 can be polyurethane (PUR). Polyurethane coatings have excellent adhesion, chemical resistance, weather resistance and wear resistance. They can provide good flexibility and hardness balance and are applicable to a variety of substrates. Polyurethane coatings are widely used in the fields of automobiles, buildings, furniture, electronic products, etc., particularly in situations where high durability and aesthetics are required. It can also be polyurethane and polyurea (PUR / PUA). Polyurethane / polyurea coatings have fast curing, high reactivity, excellent chemical resistance and weather resistance. They are hardly affected by humidity and temperature during construction and are applicable to rapid construction and harsh environments. Polyurethane / polyurea coatings are widely used in anti-corrosion, waterproof, wear-resistant and protective coatings, particularly in the fields of bridges, underground engineering, marine engineering, chemical equipment, etc. It can also be conductive coatings, antistatic coatings, thermal insulation coatings, etc., and the embodiments of the present application are not limited to this.

[0091] In some embodiments of the present application, see Figure 1 and Figure 3 As shown, the injection molding device 210 and the molding half 141 are connected via a reliable mechanical interface, ensuring smooth injection of plastic during the injection molding process and ensuring high-quality finished products. The connection can be a threaded connection, a flange connection, or other quick-connect coupling. A sealing ring or gasket is provided at the connection to ensure a tight seal and prevent plastic leakage.

[0092] In some embodiments of the present application, see Figure 5 and Figure 7 As shown, the injection molding device 210 can also be connected to the first half mold 130. When the first half mold 130 and the molding half mold 141 are combined to obtain the molding cavity 1411, the injection molding device 210 injects material into the molding cavity 1411; when the first half mold 130 and the coating half mold 142 are combined to obtain the coating cavity 1421, the injection molding device 210 enters a closed state and does not affect the process carried out in the coating cavity 1421.

[0093] The paint injection device 220 and the coating mold cavity 1421 can be connected through a paint mixing head 170 to ensure smooth injection of paint and coating quality. A sealing ring or gasket is also provided at the connection to prevent paint leakage.

[0094] In some embodiments of the present application, the injection molding and coating equipment 200 also includes a robot (not shown in the figure). After the product is prepared and ejected by the mold ejection device, the robot takes out the product. This component belongs to conventional means in this field and will not be described in detail in the embodiments of the present application.

[0095] The third aspect of the embodiment of the present application provides an injection molding and coating equipment control system, including an injection molding and coating equipment 200, and also including a main control device (not shown in the figure) and a sensor (not shown in the figure). The main control device is used to control the movement of the sliding structure 150, and the sensor is used to sense the position of the second half mold 140 and output a sensing signal to the main control device.

[0096] The master control device is the core of the entire control system, responsible for coordinating and managing the operations of all components of the injection molding and coating equipment 200. Specifically, the master control device, through pre-set control programs and algorithms, issues commands to control the movement of the sliding structure 150. These operations include, but are not limited to, moving, stopping, and positioning the slide, ensuring smooth transfer of products during the injection molding and coating processes. Furthermore, the master control device receives feedback from sensors, allowing it to adjust and optimize control strategies in real time, ensuring the stability and reliability of the entire production process.

[0097] Sensors monitor the operating status of the injection molding and coating equipment 200 in real time, particularly the position of the second mold half 140. These sensors can be of various types, such as position sensors, proximity sensors, or photoelectric sensors. These sensors are installed at strategic locations to accurately sense the current position of the second mold half 140 and transmit these signals to the main control device. Based on these signals, the main control device determines whether the sliding structure 150 needs to be adjusted, thereby ensuring precise alignment between the second mold half 140 and the first mold half 141.

[0098] Figure 10 This is a schematic diagram of the workflow of an injection molding and coating device provided by an exemplary embodiment of the present application. Figure 11 This is a flow chart of the sliding structure of the injection molding and coating equipment provided by an exemplary embodiment of the present application; Figure 10 and Figure 11 As shown, the overall workflow of the injection molding coating equipment 200 provided in the embodiment of the present application is as follows:

[0099] S1, mold closing stage

[0100] Mold closing preparation: The main control device controls the sliding structure 150 to move the second half mold 140 to a predetermined position, and the sensor monitors the position of the second half mold 140 and feeds back to the main control device.

[0101] Mold closing action: After the main control device confirms that the second half mold 140 is in place, it controls the first half mold 130 and the molding half mold 141 of the second half mold 140 of the injection coating device 200 to close, forming a complete molding cavity 1411.

[0102] S2, injection molding stage

[0103] The main control device controls the injection molding device 210 to inject the molten plastic into the molding cavity 1411, and the sensor monitors the pressure and temperature in the molding cavity 1411 to ensure the stability and quality of the injection molding process.

[0104] S3, cooling and mold opening stage

[0105] Cooling: After injection molding is complete, the main control device activates the cooling system, and the sensor monitors the temperature changes in the mold cavity to ensure that the plastic is fully solidified. When the sensor detects that the temperature in the molding cavity 1411 reaches the preset value, it sends a cooling completion signal to the main control device.

[0106] Mold opening action: The main control device controls the first half mold 130 and the forming half mold 141 to separate. At this time, the substrate a is attached to the first half mold 130. The sensor monitors the mold opening process to ensure smooth progress.

[0107] S4, slide movement stage

[0108] The main control device controls the sliding structure 150 to move the second half mold 140 and then move the painting half mold 142 to a predetermined position according to the position signal provided by the sensor. The sensor monitors the position of the painting half mold 142 and feeds back to the main control device.

[0109] S5, mold closing and painting stage

[0110] Mold closing preparation: After the main control device confirms that the painting half mold 142 is in place, it controls the painting half mold 142 and the first half mold 130 to close to form a painting mold cavity 1421.

[0111] Coating operation: The main control device controls the paint injection device 220 to inject the paint into the coating cavity 1422. The sensor monitors the pressure and temperature in the coating cavity 1422 to ensure that the paint is evenly distributed.

[0112] S6, curing and mold opening stage

[0113] Curing start: After the coating is completed, the main control device starts the cooling system again, and the sensor monitors the temperature change in the coating cavity 1421 to ensure that the coating is completely cured.

[0114] Curing completion detection: When the sensor detects that the temperature in the coating cavity 1421 reaches a preset value, a curing completion signal is sent to the main control device.

[0115] Mold opening action: The main control device controls the separation of the coating half mold 142 and the first half mold 130, and the sensor monitors the mold opening process to ensure smooth progress.

[0116] S7, finished product removal

[0117] The main control device controls the mold ejection device, the robot and other removal devices to take out the painted finished product from the first half mold 130 and perform subsequent processing, such as quality inspection and packaging.

[0118] Repeat the above process to achieve continuous production.

[0119] Through the detailed workflow described above, the sliding-table in-mold coating mechanism 100 and the injection coating equipment 200 are precisely controlled and managed at every stage within the injection coating equipment control system. This highly automated production process not only improves production efficiency and product quality, but also reduces manual intervention and errors, making it suitable for large-scale production and high-precision injection coating applications.

[0120] It should be noted that the technical solutions in the various embodiments of the present application can be combined with each other, but the basis for the mutual combination is that it can be implemented by ordinary technicians in this field; when the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist, that is, it does not fall within the scope of protection of this application.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A sliding table type in-mold coating mechanism, characterized in that: include: a first template and a second template arranged opposite to the first template; a first half mold, the first half mold being disposed on a side of the first template close to the second template or a side of the second template close to the first template; a second half mold adapted to the first half mold, the second half mold being arranged on a side of another template opposite to the template provided with the first half mold and close to the first half mold; A sliding structure comprising at least two slide rails and a power member, wherein the slide rails are disposed on templates on both sides of the second mold half, and the second mold half cooperates with the slide rails to enable the second mold half to slide on the template; the power member is connected to the second mold half, with the connection point being equidistant from the slide rails on both sides of the second mold half, so as to drive the second mold half to move along the extension direction of the slide rails; The second half mold is provided with a forming half mold and a painting half mold arranged along the extending direction of the slide rail. The forming half mold and the painting half mold can be respectively combined with the first half mold to form a forming mold cavity and a painting mold cavity.

2. The sliding table type in-mold coating mechanism according to claim 1, characterized in that: It also includes a mounting plate, at least one of the first template and the second template is provided with the mounting plate, and the second half mold is slidably arranged on the mounting plate through the slide rail.

3. The sliding table type in-mold coating mechanism according to claim 1, characterized in that: The sliding structure further includes a guide member; The first template is slidably arranged on the guide member, and the second template is arranged in the sliding direction of the first template; or The second template is slidably arranged on the guide member, and the first template is arranged in the sliding direction of the second template to realize the mold closing and mold opening operations of the first half mold and the second half mold.

4. The sliding table type in-mold coating mechanism according to claim 1, characterized in that: The utility model further comprises a paint mixing head, wherein the paint mixing head is connected to the painting half mold or the first half mold.

5. An injection molding and coating equipment, characterized in that: It includes the mechanism as described in any one of claims 1 to 4, and also includes an injection molding device and a paint injection device, the injection molding device is connected to the molding cavity and is used for injection molding to prepare the substrate, and the paint injection device is connected to the coating cavity and is used for surface treatment of the substrate.

6. A control system for injection molding and coating equipment, characterized in that: The device according to claim 5 further comprises a main control device and a sensor, wherein the main control device is used to control the movement of the sliding structure, and the sensor is used to sense the position of the second half mold and output a sensing signal to the main control device.

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