Automatic opening of a panel

Abstract

The utility model discloses a bottom, middle frame, upper plate constitute mould's basic support frame from bottom to top to automatic mould opening mould of strip, a plurality of detachable splices are installed on the middle frame through sliding mode, realize flexible movement of the splices, and provide structural basis for subsequent mould opening and piece taking, when the upper plate presses down and the bottom supports, and the splices are closely attached, the cavity formed by the inside splicing of the splices is the core area of raw material solidification as product, and the product can be formed according to the preset shape, the slope column of the both ends of the inside upper plate, the first through -hole of end splice and the mounting groove of the bottom cooperate with each other, after product solidification is completed, the vertical movement is converted into horizontal thrust through the slope column of the upper plate, and power is provided for the strip pulling open, the structure of detachable fixed between adjacent splices, when the slope column promotes end splice, the first splice drives adjacent splices, realize the synchronous outward unfolding of all splices, solve the problem that the product is jammed due to the different step of the strip pulling open when traditional manual pry mould.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to an automatic mold for splicing strips. Background Technology

[0002] In modern manufacturing, molds, as the core equipment for product forming, directly determine the production efficiency, quality stability, and manufacturing cost of products. With the rapid development of industries such as home appliances, automobiles, and 3C electronics, the market demands for product forming precision are constantly increasing, while the requirements for production cycle time are also becoming increasingly stringent. This makes the automation and efficiency of molds a core trend in industry development. Among them, modular molds, due to their advantages such as adaptability to complex product cavities and ease of cavity maintenance, are widely used in the forming of multi-cavity or irregularly shaped products, such as multi-station forming of automotive door panel liners, mass injection molding of mobile phone frames, and integrated forming of home appliance remote control shells.

[0003] However, existing modular molds still suffer from numerous technical challenges in practical applications, severely hindering production efficiency and cost control. For instance, the mold opening and part removal processes of existing modular molds rely heavily on manual operation, resulting in extremely low automation. Currently, mainstream modular molds in the industry require manual prying of the tightly fitted modular strips one by one using tools such as pry bars and wrenches after mold opening to create sufficient space for product removal. This manual operation is labor-intensive and poses serious safety hazards. Furthermore, existing molds lack versatility, leading to high mold change costs and long processing times. With the diversification of market demands, companies need to frequently switch between producing different product specifications. Traditional modular molds have fixed, adaptable structures for the modular strips and the middle frame, requiring simultaneous replacement of the modular strips, middle frame, and related positioning components when changing products.

[0004] In summary, existing modular molds have significant shortcomings in terms of automation, operational safety, versatility, energy consumption control, and intelligent management, failing to meet the demands of modern manufacturing for efficient, low-cost, and highly stable production. Therefore, developing an automated modular mold that enables automatic opening and closing of modular sections, reduces reliance on manual labor, and improves versatility and safety is crucial for addressing current industry pain points. Utility Model Content

[0005] This utility model aims to overcome at least one of the defects of the prior art and provide an automatic mold for splicing strips. By optimizing the structural design of the mold, the automatic opening and closing of the splicing strips and the rapid removal of the product are realized. At the same time, the versatility and safety of the mold are improved, and the production cost is reduced.

[0006] This utility model's automatic mold opening mold for splicing strips consists of a base, a middle frame, and an upper plate, forming the basic support frame of the mold from bottom to top. Multiple detachable splicing strips are slidably installed on the middle frame, enabling flexible movement of the splicing strips and providing a structural foundation for subsequent mold opening and part removal. When the upper plate is pressed down and the base is supported, it fits tightly with the splicing strips. The cavity formed by the splicing of the inner side of the splicing strips is the core area for the raw material to solidify into the product, ensuring that the product can be formed according to the preset shape. The inclined columns at both ends of the inner side of the upper plate, the first through holes of the end splicing strips, and the mounting groove of the base cooperate with each other. During molding, the inclined columns pass through the first through holes and embed into the mounting groove, forming a precise positioning constraint. Therefore, the detachable splicing strip design facilitates the replacement of splicing strips according to different product requirements, improving the mold's adaptability to various products and reducing mold change costs. The sliding installation of the splicing strips and the positioning cooperation of the inclined columns ensure the sealing and shape accuracy of the cavity when the mold is closed, avoiding problems such as flash and material shortage caused by component misalignment, thus improving the product qualification rate. The overall structure requires no complex manual operation, laying the foundation for subsequent automated mold opening and reducing the labor intensity of workers.

[0007] After the product has cured, the first step in demolding is the raising of the upper plate. The vertical movement is converted into horizontal thrust by the inclined columns on the upper plate, providing power for the assembly strips to unfold. The structure between adjacent assembly strips is detachable and fixed. When the inclined columns push the end assembly strips, that is, the assembly strips closest to the inclined columns, to slide outward, the first assembly strip drives the second assembly strip, the second drives the third assembly strip, and so on, so as to achieve synchronous outward unfolding of all assembly strips. This design solves the problem of product jamming caused by asynchronous unfolding of assembly strips when manually prying the mold in traditional methods.

[0008] Furthermore, as the upper plate moves upward with the equipment, the inclined column fixed to the lower surface of the upper plate rises synchronously. Since the inclined column forms an angle of 15° to 45° with the upper plate, it applies a horizontal outward thrust to the splice during the upward movement. This process converts the vertical movement of the upper plate into the horizontal sliding direction of the splice, which is the core power source for the splice to automatically open.

[0009] Compared to traditional manual prying, the inclined column provides uniform and continuous thrust, which can prevent wear caused by excessive local stress on the splice. At the same time, the thrust can be precisely controlled through the inclined design to ensure stable splice sliding speed.

[0010] More preferably, the angle between the inclined column and the upper plate is 30° to 40°.

[0011] This angle range is determined based on the driving force transmission efficiency of the inclined column and the overall mold size optimization. If the angle is too small, the stroke of the inclined column pushing the strip will be too long, affecting the mold opening efficiency. If the angle is too large, the instantaneous pressure of the inclined column on the strip will be too large, easily causing wear at the end of the strip. This angle range can control the sliding speed and stroke of the strip while ensuring that the inclined column has sufficient thrust to push the strip to slide, avoiding jamming or damage to the strip during the mold opening process. At the same time, a reasonable angle design can reduce the contact friction between the inclined column and the first through hole of the strip, extend the service life of both, reduce the mold maintenance frequency, and ensure the long-term stable operation of the mold.

[0012] Furthermore, the angled column is fixed to the upper plate using a pressure plate and screws. The pressure plate increases the contact area between the screws and the angled column, preventing damage to the angled column or upper plate due to excessive local pressure when directly fixing with screws. The screw connection provides reliable fastening and easy disassembly. This fixing method ensures that the angled column maintains a stable position during repeated pressing and lifting of the upper plate, without loosening or displacement. This prevents the angled column from shifting and failing to accurately embed into the base mounting slot during mold closing, thus ensuring cavity accuracy. At the same time, the combination of screws and pressure plates facilitates the disassembly, replacement, and maintenance of the angled column. When the angled column wears, it is not necessary to disassemble the entire upper plate; only the screws and pressure plate need to be removed for replacement, reducing maintenance difficulty and time costs.

[0013] In some embodiments of this utility model, four angled posts are specified and located at the four corners of the inner side of the upper plate. The distribution of the four corners allows the angled posts to form positioning constraints on the splice and base from the four key support points of the mold, avoiding force imbalance caused by a single or asymmetrical distribution. Furthermore, the angled posts at the four corners provide a uniform downward positioning force to the upper plate during mold closing, ensuring consistent force on the contact surfaces of the upper plate, splice, and base, reducing the risk of localized pressure deformation of the mold. During mold opening, the four angled posts can synchronously push the end splice to slide, ensuring the synchronicity of splice unfolding, preventing insufficient space for part removal due to delayed sliding of some splices, improving the smoothness of mold opening and part removal, and simultaneously enhancing the overall structural stability of the mold and extending its service life.

[0014] This claim adds a tie rod structure, connecting the slats together. The ends of the tie rods can reliably connect with adjacent slats, ensuring that multiple slats move in unison. The tie rods effectively prevent inconsistent sliding speeds or jamming of individual slats due to force differences during mold opening, ensuring all slats unfold synchronously, thus creating sufficient and uniform removal space for quick product removal and reducing the need for manual adjustment of slat positions. During mold closing, the tie rods enhance the sealing between slats, reducing the risk of material leakage from the cavity and improving product molding quality. Furthermore, the tie rod connection method is simple and reliable, easy to disassemble, and does not affect the individual replacement of slats, balancing mold stability and flexibility.

[0015] In a preferred embodiment of this utility model, the middle frame is provided with grooves on both sides, and the two ends of the splice are embedded in the grooves. The grooves provide a precise guiding path and limiting function for the sliding of the splice, ensuring that the splice can only move along the direction of the groove and avoiding lateral deviation or tilting when the splice slides. The guiding function of the grooves ensures that the splice is accurately aligned when the mold is closed, forming a stable cavity and reducing product dimensional deviations caused by splice offset. At the same time, the two ends of the splice embedded in the grooves can enhance the support strength of the splice when the mold is closed under pressure, reduce the risk of the splice bending and deforming under pressure, and extend the service life of the splice. The groove structure is easy to process and maintain, which can reduce the manufacturing cost and subsequent maintenance cost of the mold and improve the economic efficiency of the mold.

[0016] Furthermore, the upper plate and base have matching mold slots at both ends. The size of the mold slots is adapted to the mold structure of the molding machine, allowing for quick docking and fixation of the mold to the molding machine. Therefore, the matching mold slots allow for rapid installation of the mold on the molding machine without the need for repeated manual calibration of the mold position, significantly shortening mold installation time and improving production preparation efficiency. Simultaneously, the mold slots enhance the stability of the mold and the machine, preventing displacement of the mold due to vibration or pressure during molding or opening, ensuring uniform transmission of molding pressure to the cavity, and reducing quality problems caused by uneven pressure. In addition, the standardized mold slot design allows the mold to be adapted to different models of molding machines, improving mold versatility and reducing the cost of redesigning the mold due to machine replacement.

[0017] More preferably, the base includes a lower plate and a base that are fixedly connected. The upper plate, the connecting strips, and the lower plate together form a cavity. The lower plate, as the core load-bearing component of the base, is fixedly connected to the base to enhance the overall support strength of the base, while the base provides stable bottom support for the mold. Therefore, the fixed structure of the lower plate and the base prevents the base from deforming due to long-term molding pressure, ensuring the stability of the mold support. The upper plate, connecting strips, and the lower plate together form a cavity, optimizing the stress distribution within the cavity and reducing excessive pressure on any single component. Simultaneously, the lower plate facilitates the installation of temperature control components at the bottom of the mold, precisely regulating the temperature at the bottom of the cavity, optimizing the material curing effect, and improving the physical properties of the product. Furthermore, the detachable structure of the base facilitates individual maintenance and replacement of the lower plate or the base, reducing maintenance costs and extending the service life of the mold.

[0018] Furthermore, the inner sides of both ends of the middle frame are provided with receiving positions. The upper plate has a first fastening hole and the base has a second fastening hole. When the mold is closed, the first and second fastening holes match at the receiving positions and are fixed by fasteners. The receiving positions provide a hidden installation space for the fasteners, avoiding the fasteners from being exposed and affecting the movement of other parts of the mold. The fasteners, fixed to the upper plate and base through matching fastening holes, further enhance the overall sealing and structural stability after mold closing, preventing the upper plate or base from shifting due to excessive pressure during molding, ensuring the accuracy of the cavity dimensions, and reducing the risk of flash or dimensional deviations in the product. The design of the receiving positions makes the mold appearance more regular, avoids interference between the fasteners and the molding machine or other parts, and improves the safety of mold operation. At the same time, the fastener connection method is easy to disassemble, facilitating the opening and closing of the mold and daily maintenance, balancing mold stability and ease of operation. Compared with the prior art, the beneficial effects of this utility model are:

[0019] This utility model, through a rational structural design, achieves functional optimization from the overall mold frame to detailed components. The combination of detachable splicing bars, synchronous tie rods, and sliding guides ensures precise and synchronized sliding of the splicing bars. Combined with the driving force transmission of the inclined column, it achieves automated mold opening and part removal, significantly reducing the labor intensity of workers. The mold mounting grooves, fastening holes, and positioning structure of the inclined column in the upper plate and base improve the accuracy and stability of mold installation, ensuring the shape and dimensional accuracy of the cavity and reducing product defect rates. The detachable design of the base, the convenient fixing method of the inclined column, and the universal adaptability of the mold reduce the manufacturing, maintenance, and changeover costs of the mold, and extend its service life. Overall, this mold effectively improves production efficiency and product quality, reduces various costs in the production process, meets the actual needs of mass production, and possesses high practicality and economic benefits. Attached Figure Description

[0020] Figure 1 This is an exploded view of the automatic mold opening structure for splicing strips according to this utility model.

[0021] Figure 2 This is a top view of the automatic mold opening structure of the splicing strips of this utility model.

[0022] Figure 3 This utility model is aimed at Figure 2 A schematic diagram of the AA cross-sectional structure.

[0023] Figure 4 This is a schematic diagram of the automatic strip-opening mold of this utility model under the pressing state of the upper plate. Detailed Implementation

[0024] The accompanying drawings illustrate the technical solutions of this utility model in more detail. Throughout the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The described embodiments are only some, not all, embodiments of this utility model. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0025] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0027] Example

[0028] I. Overall Structure

[0029] The overall structure of the automatic mold opening die for splicing strips in this embodiment is as follows: Figures 1-4 As shown, the mold includes a base 1, a lower plate 2, a middle frame 3, an upper plate 4, end strips 5, inner strips 6, inclined columns 7, pressure plates 8, screws 9, tie rods 10, sliding grooves 11, mold slots 12, receiving positions 13, a first fastening hole 14, and a second fastening hole 15. The base is composed of the lower plate 2 and the base 1. The strips are divided into two end strips 5 and seven inner strips 6. The components work together to realize the mold closing and forming and mold opening and part removal functions.

[0030] II. Positional relationships, connection methods, and functions of each structural component

[0031] One base related structure

[0032] like Figure 1As shown, base 1 is located at the bottom of the mold and serves as the fundamental support component for the entire mold. Lower plate 2 is placed horizontally on the upper surface of base 1. Lower plate 2 and base 1 are fixedly connected by four bolts, which are evenly distributed along the four corners of lower plate 2. This connection method ensures no relative displacement between lower plate 2 and base 1, providing a stable support foundation for the entire mold. The upper surface of lower plate 2 is used to fit against the molding strips, jointly participating in the formation of the cavity. Its flat upper surface ensures a tight fit between the molding strips, preventing material leakage into the cavity.

[0033] The relevant structures of the second frame 3

[0034] Combination Figures 3-4 As shown, the middle frame 3 is placed on the upper surface of the lower plate 2, and the lower surface of the middle frame 3 is completely flush with the upper surface of the lower plate 2. There are no additional fixing connectors, and the position is stabilized by the pressure of the subsequent upper plate 4 and the fasteners. A set of sliding grooves 11 are respectively opened on the inner walls of both sides of the middle frame 3. The sliding grooves 11 extend along the length of the middle frame 3, and the cross-section of the sliding grooves 11 is rectangular, with the width matching the thickness of the strip. The function of the sliding grooves 11 is to provide sliding guidance for the strip, restricting the strip to move only along the length of the sliding grooves 11, avoiding lateral displacement when the strip slides, and ensuring that the strip can accurately align to form the cavity when the mold is closed. There is a receiving position 13 on the inner side of each end of the middle frame 3. The receiving position 13 is a rectangular groove with a depth consistent with the head height of the fastener, used to receive the head of the fastener and prevent the fastener from being exposed and affecting the movement of other parts of the mold.

[0035] Three-strip related structure

[0036] like Figure 1 and Figure 3 As shown, all nine strips are installed within two sets of grooves 11 in the middle frame 3. The two ends of each strip are embedded in the grooves 11 on both sides, allowing the strips to slide freely along the grooves 11. Two end strips 5 are located at the ends of the strip group, and seven inner strips 6 are located between the two end strips 5, with the sides of adjacent strips fitting together. The outer side of each end strip 5 has a through hole adapted to the inclined post 7. The diameter of the through hole is slightly larger than the diameter of the inclined post 7, ensuring that the inclined post 7 can pass through smoothly. The inner surface of each strip is arc-shaped or rectangular. The inner surfaces of the nine strips are joined together to form a cavity. The shape of the cavity matches the shape of the product to be molded, serving to accommodate the raw material and allow it to solidify and mold. Eight tie rods 10 are connected to adjacent strips respectively. The two ends of the tie rods 10 are connected to the side walls of the adjacent strips by threads. The length of the tie rods 10 is matched with the spacing between the adjacent strips. The function of the tie rods 10 is to ensure that all strips can move synchronously when sliding, avoid the sliding lag or jamming of a single strip, and ensure that a uniform part-taking space can be formed between the strips when the mold is opened.

[0037] Four-board-4 related structures

[0038] like Figure 1 and Figure 2 As shown, the upper plate 4 is located above the middle frame 3, and the lower surface of the upper plate 4 is opposite to the upper surface of the strip. A slope post 7 is installed at each of the four inner corners of the upper plate 4, with the axis of the slope post 7 forming a 30-degree angle with the lower surface of the upper plate 4. Each slope post 7 is equipped with a pressure plate 8 on its outer side. One side of the pressure plate 8 is attached to the side wall of the slope post 7, and the other side is attached to the inner side wall of the upper plate 4. Two screws 9 pass through both ends of the pressure plate 8 and are screwed into the threaded holes of the upper plate 4, thus achieving a fixed connection between the slope post 7 and the upper plate 4. This fixing method ensures that the slope post 7 remains stable during the repeated movement of the upper plate 4, preventing the slope post 7 from loosening or shifting. The function of the slope post 7 is to convert the vertical movement of the upper plate 4 into the horizontal movement of the strip during mold opening, providing driving force for the sliding of the strip. The lower surface of the upper plate 4 is flat; when the mold is closed, the upper plate 4 presses down, and its lower surface fits tightly against the upper surface of the strip, jointly sealing the cavity and preventing material overflow.

[0039] Five positioning and fixing structures

[0040] Two sets of mold-coding slots 12 are provided at each end of the upper plate 4, and two sets of mold-coding slots 12 are also provided at corresponding positions at each end of the base. The cross-section of the mold-coding slots 12 is U-shaped, and the width of the slot matches the width of the molding machine's coding module. The function of the mold-coding slots 12 is to achieve quick docking between the mold and the molding machine. When the mold is placed on the machine's worktable, the machine's coding module is embedded in the mold-coding slots 12, which can achieve the initial positioning of the mold without the need for repeated manual calibration. Two first fastening holes 14 are provided at each end of the upper plate 4, and two second fastening holes 15 are provided at corresponding positions at each end of the base. When the mold is closed, the first fastening holes 14 and the second fastening holes 15 are completely aligned at the receiving position 13 of the middle frame 3. Four fasteners pass through the aligned first fastening holes 14 and second fastening holes 15 respectively. The fasteners are a combination of bolts and nuts. After tightening the nuts, the upper plate 4 and the base are fixedly connected, which further enhances the overall stability of the mold after mold closing and prevents the mold components from shifting during the molding process.

[0041] III. Molding Process

[0042] The molding process is the core stage in which the raw material solidifies and is formed into the target product within the mold cavity. It requires the coordinated operation of all structural components of the mold to achieve this. The specific steps are as follows:

[0043] Preparation before molding: The mold has been installed. The base 1 is fixed to the worktable of the molding machine. The lower plate 2 is fastened to the base 1. The middle frame 3 is placed on the upper surface of the lower plate 2 with its center line aligned. The nine splicing strips, namely two end splicing strips 5 and seven inner splicing strips 6, are joined together by embedding the two ends into the sliding grooves 11 of the middle frame 3. Adjacent splicing strips are tightly fitted by threaded connection of tie rods 10. The upper plate 4 is located directly above the middle frame 3. The mold mounting groove 12 is fitted with the machine's mounting module to complete the initial positioning. At this time, all parts of the mold are in the state of waiting to be molded. Upper plate 4 pressing and positioning: Start the molding machine's molding program. The machine drives the upper plate 4 to move slowly downward. During the process, the inclined posts 7 at the four corners of the inner side of the upper plate 4 are precisely aligned with the through holes of the end splicing strips 5. As the upper plate 4 continues to press down, the inclined posts 7 pass through the through holes and are embedded in the preset mounting grooves of the lower plate 2 of the base, forming a precise positioning of the upper plate 4 with the splicing strips and the base, avoiding the upper plate 4 from shifting and causing cavity misalignment.

[0044] Cavity sealing and fixing: The upper plate 4 continues to be pressed down until its lower surface is completely in contact with the upper surface of the splice strip. At the same time, the lower surface of the splice strip is in close contact with the upper surface of the lower plate 2, and the inner surfaces of the nine splice strips together form a sealed cavity. At this time, the first fastening holes 14 at both ends of the upper plate 4 and the second fastening holes 15 at both ends of the base are completely aligned at the receiving position 13 of the middle frame 3. The fasteners are inserted into the aligned fastening holes and tightened to achieve rigid fixing of the upper plate 4 and the base, preventing the mold components from loosening due to pressure during molding and ensuring the cavity sealing.

[0045] Raw material injection and pressure curing: A fixed amount of molding material, such as silicone or plastic, is injected into the sealed cavity through the material channel of the mold, filling every detail of the cavity. The machine applies stable pressure to the upper plate 4, which is transmitted to the raw material, forcing it to fully conform to the inner wall of the cavity. At the same time, the cavity temperature is controlled according to the raw material requirements, so that the raw material completes physical or chemical curing under the combined action of pressure and temperature, gradually forming a product that conforms to the shape of the cavity.

[0046] IV. Mold Opening Process

[0047] The mold opening process is the stage of removing the cured product from the cavity. Automated mold opening is achieved by relying on the power transmission of the inclined column 7 and the synchronous action of the tie rod 10. The specific steps are as follows:

[0048] Release of Fixation and Initial Mold Opening: After the product has cured, first loosen the fasteners at the receiving position 13 of the middle frame 3, and remove the fasteners to release the fixing constraints between the upper plate 4 and the base. Start the machine's mold opening program, and the machine will drive the upper plate 4 to move slowly upward. The upper plate 4 will drive the inclined columns 7 at the four corners to rise synchronously, and the inclined columns 7 will gradually disengage from the mounting groove of the base and the through holes of the end splice 5. Synchronous Splice Unfolding: As the upper plate 4 and the inclined columns 7 continue to rise, the inclined surfaces of the inclined columns 7 will contact the edges of the through holes of the end splice 5 and generate a horizontal thrust. Under the action of the thrust, the end splice 5 will slide outward along the slide groove 11 of the middle frame 3, and at the same time, it will drive the adjacent inner splice 6 to slide synchronously through the pull rods 10 at both ends. The subsequent inner splice 6 will then drive other splices in turn through the pull rods 10, so that all splices can be evenly unfolded along the slide groove 11.

[0049] Creating a retrieval space: The slats continue to slide until a retrieval space larger than the product size is formed between adjacent slats. At this point, the pull rod 10 is in a tensioned state, ensuring that the slats are stable and no longer slide. The formation of the retrieval space avoids friction between the product and the inner wall of the slats, providing ample space for product removal.

[0050] Product Removal and Mold Reset: Using an air gun aimed at the removal space, compressed air is sprayed onto the bottom of the product. Under the action of the airflow, the product detaches from the inner wall of the cavity and slides down along the gaps between the strips into the preset receiving box, completing product removal. Afterwards, the machine drive plate 4 continues to rise to a safe height. The strips, under their own weight or with the aid of a reset mechanism, slide inward along the slide groove 11 to reset. The pull rod 10 returns to its initial pre-tightened state as the strips reset, and the mold returns to its initial state for the next pressing cycle. The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model should not depart from the spirit and scope of this utility model. Those skilled in the art can also make other changes within the spirit of this utility model for its design, as long as they do not deviate from the technical effect of this utility model. These changes made according to the spirit of this utility model should be included within the scope of protection claimed by this utility model.

Claims

1. An automatic mold for splicing strips, characterized in that, From bottom to top, it includes a base, a middle frame (3), and an upper plate (4); it also includes multiple detachable splicing strips; the multiple splicing strips are slidably installed on the middle frame (3); the upper plate (4) is pressed down, supported by the base, and closely fits the splicing strips, with the inner side of the splicing strips spliced ​​to form a cavity; Multiple inclined columns (7) are provided at both ends of the inner side of the upper plate (4). The splice includes an end splice (5) and an inner splice (6); the end splice (5) is provided with a first through hole; The base is provided with an installation groove; during molding, the inclined column (7) passes through the first through hole and is embedded into the installation groove.

2. The automatic strip-opening mold according to claim 1, characterized in that, The angle between the inclined column (7) and the upper plate (4) is 15°~45°.

3. The automatic strip-opening mold according to claim 2, characterized in that, The angle between the inclined column (7) and the upper plate (4) is 30°~40°.

4. The automatic strip-opening mold according to claim 1, characterized in that, It also includes a pressure plate (8) and screws (9), and the inclined column (7) and the upper plate (4) are fixed by the pressure plate (8) and screws (9).

5. The automatic strip-opening mold according to claim 1, characterized in that, There are four inclined columns (7), located at the four corners inside the upper plate (4).

6. The automatic strip-opening mold according to claim 1, characterized in that, It also includes a tie rod (10), through which the splices are connected.

7. The automatic strip-opening mold according to claim 1, characterized in that, The middle frame (3) has grooves (11) on both sides, and the two ends of the splice strip are embedded in the grooves (11).

8. The automatic strip-opening mold according to claim 1, characterized in that, The upper plate (4) and the base are provided with matching code slots (12) at both ends.

9. The automatic mold for splicing strips according to claim 1, characterized in that, The base includes a lower plate (2) and a base (1) that are fixedly connected. The upper plate (4), the splicing strip, and the lower plate (2) are fitted together to form a cavity.

10. The automatic strip-opening mold according to claim 1, characterized in that, The inner sides of both ends of the middle frame (3) are provided with receiving positions (13); the two ends of the upper plate (4) are provided with first fastening holes (14), and the two ends of the base are provided with second fastening holes (15); when the upper plate (4) is pressed down, the first fastening hole (14) and the second fastening hole (15) match the receiving position (13) and are fixed by fasteners.

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