Die with embedded part pre-pressing structure

Abstract

The utility model discloses a mold with an embedded part prepressing structure. The mold comprises a front mold plate, a rear mold plate and a mounting plate, the front mold plate and the rear mold plate are used for closing a mold to form a product, the mounting plate is arranged above the front mold plate and is fixedly provided with an oil cylinder, and the oil cylinder is connected with the front mold plate; a plurality of vertically penetrating front mold ejector sleeves are arranged in the front mold plate, front mold ejector pins capable of moving up and down are contained in the front mold plate, and the upper ends of the front mold ejector sleeves extend out of the front mold ejector sleeves and are connected with a mounting plate; a corresponding number of rear mold ejector sleeves are arranged in the rear mold plate, rear mold ejector pins capable of moving up and down are arranged in the rear mold ejector sleeves, plugs are arranged at the bottoms of the rear mold ejector sleeves, and the upper ends of the rear mold ejector pins extend out of the upper side end face of the rear mold plate for insertion and positioning of embedded parts; through the design of the front mold ejector pin and the rear mold ejector pin in the front mold ejector sleeve and the rear mold ejector sleeve, the embedded part is pre-pressed and positioned before mold assembly, so that accurate positioning and firm combination of the embedded part in an SMC (Sheet Molding Compound) product are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mould pressing mould, specifically relates to a mould with pre-embedded part pre-pressing structure. BACKGROUND

[0002] In the field of construction, structure or mould manufacturing, pre-embedded parts play a crucial role as a kind of pre-installed or embedded components. They are used for the connection, fixation or realization of specific functions of subsequent structures, can be made of metal, plastic or other materials, and are accurately placed in the predetermined position before the concrete pouring, structure assembly or other construction stages. Especially in SMC (Sheet Molding Compound, sheet molding compound) mould, the application of pre-embedded parts (also commonly known as inserts) is particularly widespread, such as metal, glass, wood, fiber, paper, rubber or already formed plastic parts embedded inside the plastic, etc. These inserts are integrally formed with the plastic during the molding process and become an inseparable part of the final product.

[0003] In traditional SMC mould pressing composite part, the integrally forming method of pre-embedded part usually includes cutting SMC sheet material, laying adhesive film on the surface of pre-embedded part and winding unidirectional tape prepreg, heating the mould, putting the pre-embedded part of body SMC and winding prepreg, and closing the mould and curing.

[0004] However, in the existing SMC mould pre-embedded part structure, there are some obvious defects. The most important problem is the stability of the pre-embedded part in the mould. In the mould production process, the pre-embedded insert needs to be fixed on the back mould needle. When the material is laid, the mould is closed, and due to the fluidity of the material and the pressure of the press, the pre-embedded insert is easy to move or leak glue, which seriously affects the qualified rate of the product. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems existing in the prior art, and provides a mould with pre-embedded part pre-pressing structure. Through the design of the front mould plunger and the rear mould plunger in the front mould plunger and the rear mould plunger, the pre-embedded part is pre-pressed and positioned before the mould is closed, which avoids the deviation and glue leakage of the pre-embedded part under the action of the fluidity of the material and the pressure of the press during the mould closing process, and realizes the accurate positioning and firm combination of the pre-embedded part in the SMC product.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0007] A mold with a pre-embedded part pre-pressing structure, comprising a front mold plate, a rear mold plate and a mounting plate; the front mold plate and the rear mold plate are used for molding products; the mounting plate is arranged above the front mold plate, an oil cylinder is connected to the mounting plate, and the oil cylinder is connected to the front mold plate; a plurality of vertical front mold guide sleeves are fixedly arranged in the front mold plate, a front mold ejector pin that can move up and down is arranged in each front mold guide sleeve; the upper end of the front mold ejector pin protrudes from the front mold guide sleeve and is connected to the mounting plate; a plurality of vertical rear mold guide sleeves are fixedly arranged in the rear mold plate, the rear mold guide sleeves correspond to the front mold guide sleeves one by one, a rear mold ejector pin is arranged in each rear mold guide sleeve, and a plug is arranged at the bottom of the rear mold guide sleeve and abuts against the lower end of the rear mold ejector pin; the upper end of the rear mold ejector pin protrudes from the upper end face of the rear mold plate and is used for inserting and positioning the pre-embedded part.

[0008] Further, the front mold plate is provided with an installation cavity that penetrates up and down, and the front mold guide sleeves are inserted into the installation cavity; the upper end of the front mold guide sleeve is provided with a convex ring, the lower end face of the convex ring abuts against the stepped face of the installation cavity; the upper side of the convex ring is provided with a fixing block, and the fixing block is fixed to the front mold plate by bolts.

[0009] Further, the upper side of the front mold plate is provided with a panel, a front mold square iron is fixedly connected between the panel and the front mold plate, and the mounting plate is located between the panel and the front mold plate.

[0010] Further, the mounting plate is provided with an oil liquid distributor and two oil cylinders; one side of the oil liquid distributor is connected to an oil supply pipeline, the other side of the oil liquid distributor is connected to the two oil cylinders respectively, and the oil liquid distributor is used for evenly distributing oil liquid to the two oil cylinders.

[0011] Further, the output rod of the oil cylinder is connected to a mounting block, and the mounting block is connected to the front mold plate.

[0012] Further, the mounting plate is connected to a guide sleeve, the front mold plate is connected to a guide rod, and the guide sleeve movably sleeves the guide rod.

[0013] Further, the upper end face of the mounting plate is connected to a limiting column, and the lower end face of the mounting plate is connected to a garbage spike.

[0014] Compared with the prior art, the mold has the following beneficial effects:

[0015] 1. By designing the front mold ejector pin and the rear mold ejector pin in the front mold guide sleeve and the rear mold guide sleeve, the pre-embedded part is pre-pressed and positioned before the mold is closed, so that the pre-embedded part deviates and leaks glue under the action of the flowability of the material and the pressure of the press during the closing of the mold, and the accurate positioning and firm combination of the pre-embedded part in the SMC product are realized.

[0016] 2、Oil cylinder drive mounting plate moves down, drives front mold ejector pin to penetrate SMC laminated embedded part, not only eliminates interface bubble, but also significantly enhances the bonding force between embedded part and SMC material; at the same time, the embedded part can be exposed after forming, which meets the use demand of specific products;

[0017] 3、The front mold ejector cylinder is stably installed on the front mold plate through the abutment of the convex ring and the step surface of the installation cavity, and the cooperation of the fixing block and the bolt, and the structure is convenient to disassemble and maintain, and the maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a sectional view of the mold pressing mold in an embodiment of the present application.

[0020] Figure 2 It is a structural schematic view of the pre-pressing mechanism in an embodiment of the present application.

[0021] Figure 3 It is a structural schematic view of the pre-pressing mechanism and SMC product in an embodiment of the present application.

[0022] Figure 4 It is a connection diagram of the front mold ejector cylinder, front mold ejector pin and fixing block in an embodiment of the present application.

[0023] In the figure: 1, front mold plate; 2, rear mold plate; 3, mounting plate; 4, oil cylinder; 5, front mold ejector cylinder; 501, convex ring; 6, front mold ejector pin; 7, rear mold ejector cylinder; 8, rear mold ejector pin; 9, plug; 10, fixing block; 11, panel; 12, front mold square iron; 13, oil distributor; 14, mounting block; 15, guide sleeve; 16, guide rod; 17, limiting column; 18, garbage nail; 19, embedded part. DETAILED DESCRIPTION

[0024] The technical scheme of the present application will be described clearly and completely in combination with the drawings in the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0025] In the description of the utility model, it needs to be explained that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0027] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the field of building, structure or mold manufacturing, embedded parts play a crucial role as a kind of pre-installed or embedded components. They are used for the connection, fixation or realization of specific functions of subsequent structures, can be made of metal, plastic or other materials, and are precisely placed in the predetermined position before the concrete pouring, structure assembly or other construction stages. In particular in SMC (Sheet Molding Compound) mold, the application of embedded parts (also commonly known as inserts) is particularly widespread, such as metal, glass, wood, fiber, paper, rubber or molded plastic parts embedded inside plastic, which are integrally molded with plastic during the molding process and become an integral part of the final product.

[0029] In traditional SMC mold forming composite parts, the integrally molding method of embedded parts usually includes cutting SMC sheet material, laying adhesive film on the surface of the embedded part and winding unidirectional tape prepreg, heating the mold, putting the embedded part with body SMC and winding prepreg, and curing.

[0030] However, in the existing SMC mold insert structure, there are some obvious defects. The most important problem is the stability of the insert in the mold. In the mold production process, the insert needs to be fixed on the back mold needle. When the material is laid, the mold is closed, and due to the fluidity of the material and the pressure of the press, the insert is easy to move or leak glue, which seriously affects the qualified rate of the product.

[0031] The embodiments of the present application aim at the above technical problems, and provide a mold with a pre-embedded part pre-pressing structure, as shown in Figures 1 to 4 The mold with a pre-embedded part pre-pressing structure comprises a front mold plate 1, a back mold plate 2 and a mounting plate 3. The front mold plate 1 and the back mold plate 2 are used to form a product by closing. The mounting plate 3 is arranged above the front mold plate 1, and an oil cylinder 4 is connected to the mounting plate 3. The oil cylinder 4 is connected to the front mold plate 1. A plurality of vertical front mold cylinders 5 are fixedly arranged in the front mold plate 1. A front mold needle 6 that can move up and down is arranged in each front mold cylinder 5. The upper end of the front mold needle 6 extends out of the front mold cylinder 5 and is connected to the mounting plate 3. A plurality of vertical back mold cylinders 7 are fixedly arranged in the back mold plate 2. The back mold cylinders 7 correspond to the front mold cylinders 5 one by one. A back mold needle 8 is arranged in each back mold cylinder 7. The bottom of the back mold cylinder 7 is provided with a plug 9 that abuts against the lower end of the back mold needle 8. The upper end of the back mold needle 8 extends out of the upper end face of the back mold plate 2 and is used for the insertion and positioning of a pre-embedded part 19.

[0032] In the above embodiments, the mold forms a product by closing the front mold plate 1 and the back mold plate 2. In the forming process, the mold is first heated to the decomposition temperature 145-160℃ of SMC to ensure good fluidity of the material. In the open mold state, the pre-embedded part 19 is accurately inserted into the upper end of the back mold needle 8 to achieve accurate positioning in the vertical direction. Then, the SMC sheet cut according to the calculated area / weight is laid on the cavity surface of the back mold plate 2. Next, the pre-pressing mechanism is started, the oil cylinder 4 drives the mounting plate 3 to move downward, the mounting plate 3 drives the front mold needle 6 to penetrate the SMC and press the pre-embedded part 19 to position the pre-embedded part 19. Then, the front mold plate 1 and the back mold plate 2 start to close. In this process, the oil cylinder hydraulic pressure is reduced, the pre-embedded part 19 is returned to the front mold needle 6, and the front mold needle 6 drives the oil cylinder movable rod to be passively displaced. Finally, after the front mold plate 1 and the back mold plate 2 are completely closed, heating is performed to make the SMC melt and flow, so as to wrap the pre-embedded part and fill the entire cavity.

[0033] Through the design of the front mold needle 6 and the back mold needle 8 in the front mold cylinder 5 and the back mold cylinder 7, the pre-embedded part 19 is pre-pressed and positioned before the mold is closed, accurate positioning of the pre-embedded part 19 in the closing process is achieved, and deviation and glue leakage of the pre-embedded part 19 under the action of the fluidity of the material and the pressure of the press in the closing process are avoided, so as to achieve accurate positioning and firm combination of the pre-embedded part 19 in the SMC product.

[0034] The oil cylinder 4 drives the mounting plate 3 to move downward, and the front mold ejector pin 6 penetrates the SMC laminated embedded part, which not only eliminates the interface bubble, but also significantly enhances the bonding force between the embedded part and the SMC material. At the same time, the embedded part can be exposed after molding, meeting the use requirements of specific products.

[0035] As shown in Figure 4 some embodiments, the front mold plate 1 is provided with a mounting cavity penetrating up and down, and the front mold plunger 5 is inserted into the mounting cavity; the upper end of the front mold plunger 5 is provided with a convex ring 501, and the lower end face of the convex ring 501 abuts against the stepped surface of the mounting cavity; the upper side of the convex ring 501 is provided with a fixing block 10, and the fixing block 10 is fixed with the front mold plate 1 by bolts.

[0036] Through the abutment of the convex ring 501 and the stepped surface of the mounting cavity, and the cooperation of the fixing block 10 and the bolt, the front mold plunger 5 is stably installed on the front mold plate 1, and the structure is convenient to disassemble and maintain, reducing the maintenance cost.

[0037] In some embodiments, the upper side of the front mold plate 1 is provided with a panel 11, and the front mold plate 1 is fixedly connected with a front mold square iron 12 between the panel 11 and the front mold plate 1; the mounting plate 3 is located between the panel 11 and the front mold plate 1.

[0038] The combination structure of the panel 11, the front mold square iron 12 and the front mold plate 1 improves the overall rigidity and stability of the mold. At the same time, the design of the mounting plate 3 between the panel 11 and the front mold plate 1 optimizes the space utilization of the mold, making the mold more compact.

[0039] In some embodiments, the mounting plate 3 is provided with an oil distributor 13 and two oil cylinders 4; one side of the oil distributor 13 is connected with an oil supply pipeline, and the other side of the oil distributor 13 is connected with the two oil cylinders 4 respectively, and the oil distributor 13 is used for evenly distributing oil to the two oil cylinders 4.

[0040] The oil distributor 13 as an oil management component, one side of which is connected with an oil supply pipeline to receive oil supply from the outside. The other side is connected with the two oil cylinders 4 respectively to realize the transmission and distribution of oil. The oil distributor 13 can accurately and evenly distribute oil to the two oil cylinders 4, ensuring that they obtain equal power source, thereby ensuring the synchronization and stability of the lifting of the two ends of the mounting plate 3.

[0041] In some embodiments, the output rod of the oil cylinder 4 is connected with a mounting block 14, and the mounting block 14 is connected with the front mold plate 1. By using the mounting block 14 as an intermediate connecting piece, the connection strength between the oil cylinder 4 and the front mold plate 1 is enhanced, and the accuracy and stability of the action of the mounting plate 3 are improved.

[0042] In some embodiments, the mounting plate 3 is connected with a guide sleeve 15, the front template 1 is connected with a guide rod 16, and the guide sleeve 15 movably sleeves the guide rod 16. When the mounting plate 3 drives the front template 1 to move, the guide rod 16 slides in the guide sleeve 15, thereby ensuring that the front template 1 moves stably and accurately along a predetermined track.

[0043] In some embodiments, the upper end surface of the mounting plate 3 is connected with a limiting column 17, and the lower end surface of the mounting plate 3 is connected with a garbage nail 18. The limiting column 17 is used to contact the panel 11 during the lifting of the mounting plate 3, thereby limiting the upper position of the mounting plate 3; and the garbage nail 18 is used to contact the front template 1 during the lifting of the mounting plate 3, thereby limiting the lower position of the mounting plate 3.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mold with a pre-embedded pre-press structure, characterized by, Including front template (1), back template (2) and mounting plate (3);The front template (1) and the back template (2) are used to mold product;The mounting plate (3) is located above the front template (1), and the mounting plate (3) is connected with the oil cylinder (4), and the oil cylinder (4) is connected with the front template (1); A plurality of vertical front mold guide tubes (5) are fixedly arranged in the front template (1), and a front mold ejector pin (6) movably arranged in each front mold guide tube (5);The upper end of the front mold ejector pin (6) extends out of the front mold guide tube (5) and is connected with the mounting plate (3); A plurality of vertical rear mold guide tubes (7) are fixedly arranged in the back template (2), and the rear mold guide tube (7) corresponds to the front mold guide tube (5), and a rear mold ejector pin (8) is arranged in each rear mold guide tube (7), and the bottom of the rear mold guide tube (7) is provided with a plug (9) abutting with the lower end of the rear mold ejector pin (8); The upper end of the rear mold ejector pin (8) extends out of the upper side end face of the back template (2) and is used for the insertion positioning of the embedded part (19).

2. The mold with a pre-embedded pre-press structure according to claim 1, characterized in that, The front template (1) is provided with an installation cavity penetrating up and down, and the front mold guide tube (5) is inserted into the installation cavity;The upper end of the front mold guide tube (5) is provided with a convex ring (501), and the lower side end face of the convex ring (501) abuts with the stepped surface of the installation cavity;The upper side of the convex ring (501) is provided with a fixed block (10), and the fixed block (10) is fixed with the front template (1) by bolts.

3. The mold with a pre-embedded pre-press structure according to claim 1, characterized in that, The upper side of the front template (1) is provided with a panel (11), and a front mold square iron (12) is fixedly connected between the panel (11) and the front template (1);The mounting plate (3) is located between the panel (11) and the front template (1).

4. The mold with a pre-embedded pre-press structure according to claim 1, characterized in that, The mounting plate (3) is provided with an oil liquid distributor (13) and two oil cylinders (4);One side of the oil liquid distributor (13) is connected with an oil supply pipeline, and the other side of the oil liquid distributor (13) is respectively connected with two oil cylinders (4), and the oil liquid distributor (13) is used for evenly distributing oil liquid to two oil cylinders (4).

5. The mold with a pre-embedded pre-press structure according to claim 1, characterized in that, The output rod of the oil cylinder (4) is connected with a mounting block (14), and the mounting block (14) is connected with the front template (1).

6. The mold with a pre-embedded pre-press structure according to claim 1, characterized in that, The mounting plate (3) is connected with a guide sleeve (15), the front template (1) is connected with a guide rod (16), and the guide sleeve (15) is movably sleeved on the guide rod (16).

7. The mold with a pre-embedded pre-press structure according to claim 1, characterized in that, The upper side end face of the mounting plate (3) is connected with a limiting column (17), and the lower side end face of the mounting plate (3) is connected with a garbage spike (18).

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