SMC mold pressing mold convenient to demold

Abstract

The utility model relates to the technical field of SMC (Sheet Molding Compound) product production equipment, in particular to an SMC mould pressing mould convenient to demould, which is reasonable in structural design and mainly comprises a frame, a guide post, a stamping component, a pressure-bearing component and a demoulding component, on one hand, the design of the guide post can ensure the butt joint accuracy of the stamping component and the pressure-bearing component, and on the other hand, the demoulding component is convenient to demould; the pressure-bearing assembly is provided with a preheating system, so that a pressure-bearing seat can be preheated before the SMC material is subjected to punch forming; on the other hand, the demolding assembly is mainly composed of a vertical plate base, a transverse plate base, a lifting push rod, a rotating connector, a demolding rod, a movable bottom plate, a connecting block, an overturning motor and a belt transmission part, the lifting push rod is used for providing axial propelling force for the demolding rod and the movable bottom plate, and the overturning motor and the belt transmission part are used for providing circumferential rotating driving force for the demolding rod and the movable bottom plate; in this way, the movable bottom plate can drive the material piece to rotate and demould along with the movable bottom plate.

Description

Technical Field

[0001] The utility model relates to the technical field of SMC product production equipment, in particular to an SMC molding die which is easy to demould. Background Art

[0002] SMC is a sheet molding material formed by mixing unsaturated polyester resin, thickener, initiator, cross-linking agent, low shrinkage additive, filler, internal release agent and colorant into resin paste, impregnating short fiber roving or glass fiber mat, and wrapping it with polyethylene or polypropylene film on both sides. In addition to its application in the automotive field, SMC molds are also used in bathroom, electronics, industry, etc. It is a new type of material that is gradually becoming popular.

[0003] SMC products often require the use of SMC compression molds during the production process. For example, the patent specification with publication number CN219405123U discloses an SMC compression mold that is easy to demold, including a frame, wherein an upper mold and a lower mold are arranged inside the frame from top to bottom, a preheating component for heating the upper mold and the lower mold is arranged on the top of the frame, and a demolding component for demolding is arranged at the bottom of the lower mold.

[0004] However, this SMC compression mold has some shortcomings when used. First, its demoulding mechanism design is unreasonable, which is not convenient for the rapid demoulding of SMC products with threads; second, the preheating mechanism design is not reasonable enough. Therefore, it is necessary to optimize and improve this SMC compression mold. Utility Model Content

[0005] The utility model aims to overcome the above problems existing in the traditional technology and provide an SMC molding die which is easy to demould.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] An SMC compression mold for easy demoulding comprises a frame, a guide column, a stamping component, a pressure-bearing component and a demoulding component; a plurality of guide columns are installed inside the frame;

[0008] The stamping assembly comprises a stamping push rod, a pressing plate and a pressing block, the movable end of the stamping push rod is installed with a pressing block via the pressing plate, and the pressing plate is embedded with a first guide sleeve that matches the guide column;

[0009] The pressure-bearing assembly includes a pressure-bearing seat, a fastening screw hole for installing a fastening screw is provided at the side end of the pressure-bearing seat, a threaded molding groove is provided inwardly at the center of the upper side of the pressure-bearing seat, a demoulding through hole is provided at the bottom end of the molding groove, a heating tube is installed at the periphery of the molding groove of the pressure-bearing seat, an electromagnetic heating coil is installed at the periphery of the heating tube of the pressure-bearing seat, and a second guide sleeve cooperating with the guide column is embedded and installed on the pressure-bearing seat;

[0010] The demoulding assembly includes a vertical plate seat, a horizontal plate seat, a lifting push rod, a rotating joint, a demoulding rod, a movable bottom plate, a connecting block, a flip motor and a belt transmission member. The horizontal plate seat is fixed to the bottom plate of the frame through the vertical plate seat, the movable end of the lifting push rod is connected to the bottom end of the demoulding rod through a rotating joint, the top end of the demoulding rod is embedded in the connecting block fixed on the lower side of the movable bottom plate, the flip motor is fixed on the vertical plate seat, and the flip motor is connected to the demoulding rod through a belt transmission member installed in the horizontal plate seat.

[0011] Furthermore, in the above-mentioned SMC molding die that is easy to demould, the top plate of the frame is provided with a push rod installation groove for facilitating the installation of a stamping push rod, and the side plate of the frame is provided with a fastening through hole for facilitating the passage of a fastening screw.

[0012] Furthermore, in the above-mentioned SMC compression mold that is easy to demold, the heating tube is made of a stainless steel material that can be electromagnetically heated.

[0013] Furthermore, in the above-mentioned SMC compression mold that is easy to demould, the pressure-bearing seat is made of a ceramic material that can conduct heat.

[0014] Furthermore, in the above-mentioned SMC compression mold for easy demoulding, axial key grooves are symmetrically provided on the outer side of the rod body of the demoulding rod.

[0015] Furthermore, in the above-mentioned SMC molding die that is easy to demold, the belt transmission component is composed of a driving pulley, a transmission belt and a driven pulley, the driving pulley is fixed to the output shaft of the flip motor, the transmission belt is sleeved on the outside of the driving pulley and the driven pulley, and a through hole is opened at the center of the driven pulley to facilitate the demolding rod to pass through, and the inner wall of the through hole is symmetrically provided with radial cams that are inserted into the axial keyway.

[0016] The beneficial effects of the utility model are:

[0017] The mold structure of the utility model is reasonably designed, and is mainly composed of a frame, a guide column, a stamping component, a pressure-bearing component and a demoulding component. On the one hand, the design of the guide column can ensure the docking accuracy of the stamping component and the pressure-bearing component, and the pressure-bearing component itself is equipped with a preheating system, which can preheat the pressure-bearing seat before the SMC material is stamped and formed; on the other hand, the demoulding component is mainly composed of a vertical plate seat, a horizontal plate seat, a lifting push rod, a rotating joint, a demoulding rod, a movable bottom plate, a connecting block, a flip motor and a belt transmission component. The lifting push rod is used to provide an axial propulsion force for the demoulding rod and the movable bottom plate, and the flip motor and the belt transmission component are used to provide a circumferential rotation driving force for the demoulding rod and the movable bottom plate. In this way, the movable bottom plate can drive the material to rotate and demould accordingly.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the stamping assembly in the utility model;

[0022] Figure 3 It is a structural schematic diagram of the pressure-bearing component in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the demoulding component in the utility model;

[0024] Figure 5 It is a schematic diagram of the composition of the belt transmission parts in the utility model;

[0025] In the accompanying drawings, the components represented by the reference numerals are described as follows:

[0026] 1-frame, 2-guide column, 3-stamping assembly, 301-stamping push rod, 302-pressure plate, 303-pressure block, 304-first guide sleeve, 4-pressure-bearing assembly, 401-pressure-bearing seat, 402-fastening screw, 403-molding groove, 404-demolding perforation, 405-heating tube, 406-electromagnetic heating coil, 407-second guide sleeve, 5-demolding assembly, 501-vertical plate seat, 502-horizontal plate seat, 503-lifting push rod, 504-rotating joint, 505-demolding rod, 506-movable bottom plate, 507-connecting block, 508-flip motor, 509-belt transmission, 509a-driving pulley, 509b-driven pulley, 509c-transmission belt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 5 As shown, this embodiment provides an SMC molding die that is easy to demould, including a frame 1, guide pillars 2, a stamping component 3, a pressure-bearing component 4 and a demoulding component 5; a plurality of guide pillars 2 are installed inside the frame 1.

[0029] In this embodiment, the stamping assembly 3 includes a stamping push rod 301, a pressure plate 302 and a pressure block 303. The movable end of the stamping push rod 301 is installed with the pressure block 303 through the pressure plate 302. The pressure plate 302 is embedded with a first guide sleeve 304 that cooperates with the guide column 2.

[0030] In this embodiment, the pressure-bearing component 4 includes a pressure-bearing seat 401, and a fastening screw hole for installing a fastening screw 402 is opened at the side end of the pressure-bearing seat 401. A threaded molding groove 403 is opened inward at the center of the upper side of the pressure-bearing seat 401, and a demolding through hole 404 is opened at the bottom end of the molding groove 403. A heating tube 405 is installed on the periphery of the molding groove 403 of the pressure-bearing seat 401, and an electromagnetic heating coil 406 is installed on the periphery of the heating tube 405 of the pressure-bearing seat 401. A second guide sleeve 407 that cooperates with the guide column 2 is embedded in the pressure-bearing seat 401.

[0031] In this embodiment, the demoulding assembly 5 includes a vertical plate seat 501, a horizontal plate seat 502, a lifting push rod 503, a rotary joint 504, a demoulding rod 505, a movable bottom plate 506, a connecting block 507, a flip motor 508 and a belt transmission member 509. The horizontal plate seat 502 is fixed to the bottom plate of the frame 1 through the vertical plate seat 501, and the lifting push rod 503 is also installed on the bottom plate of the frame 1. The movable end of the lifting push rod 503 is connected to the bottom end of the demoulding rod 505 through the rotary joint 504, and the top end of the demoulding rod 505 is limited in the connecting block 507 at the lower side of the movable bottom plate 506. The flip motor 508 is fixed on the vertical plate seat 501, and the flip motor 508 is connected to the demoulding rod 505 through the belt transmission member 509 installed in the horizontal plate seat 502. The movable bottom plate 506 and the inner cavity of the molding groove 403 are slidably sealed and matched with each other, and the outer periphery of the movable bottom plate 506 is provided with a matching thread groove.

[0032] In this embodiment, the top plate of the frame 1 is provided with a push rod installation groove for facilitating installation of the punch push rod 3 , and the side plate of the frame 1 is provided with a fastening through hole for facilitating the fastening screw 402 to pass through.

[0033] In this embodiment, the heating tube 405 is made of a stainless steel material that can be electromagnetically heated, and the pressure bearing seat 406 is made of a ceramic material that can conduct heat.

[0034] In this embodiment, axial key grooves are symmetrically provided on the outer side of the rod body of the demoulding rod 505 .

[0035] In this embodiment, the belt transmission member 509 is composed of a driving pulley 509a, a transmission belt 509c and a driven pulley 509b. The driving pulley 509a is fixed to the output shaft of the flip motor 508. The transmission belt 509c is sleeved on the outer sides of the driving pulley 509a and the driven pulley 509b. A through hole is provided at the center of the driven pulley 509b for the demoulding rod 505 to pass through. The inner wall of the through hole is symmetrically provided with radial convex keys that are inserted into the axial key grooves. The inner side of the transmission belt 509c is uniformly provided with anti-skid convex teeth. The outer peripheries of the driving pulley 509a and the driven pulley 509b are provided with anti-skid tooth grooves that cooperate with the anti-skid convex teeth.

[0036] A specific application of this embodiment is: this mold is mainly composed of a frame 1, a guide column 2, a stamping component 3, a pressure component 4 and a demolding component 5. On the one hand, the design of the guide column 2 can ensure the docking accuracy of the stamping component 3 and the pressure component 4. The pressure component 4 itself is equipped with a preheating system, which can preheat the pressure seat 401 before the SMC material is stamped and formed; on the other hand, the demolding component 5 is mainly composed of a vertical plate seat 501, a horizontal plate seat 502, a lifting push rod 503, a rotary joint 504, a demolding rod 505, a movable bottom plate 506, a connecting block 507, a flip motor 508 and a belt transmission member 509. The lifting push rod 503 is used to provide an axial propulsion force for the demolding rod 505 and the movable bottom plate 506, and the flip motor 508 and the belt transmission member 509 are used to provide a circumferential rotation driving force for the demolding rod 505 and the movable bottom plate 506. In this way, the movable bottom plate 506 can drive the material to rotate and demold. In order to ensure the connection reliability between the material and the movable bottom plate 506, a plurality of positioning grooves may be provided on the movable bottom plate 506, and the positioning protrusions on the bottom side of the material may be removed after subsequent demoulding.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A SMC compression mold for easy demoulding, characterized in that: It includes a frame, a guide column, a stamping component, a pressure-bearing component and a demoulding component; a plurality of guide columns are installed inside the frame; The stamping assembly comprises a stamping push rod, a pressing plate and a pressing block, the movable end of the stamping push rod is installed with a pressing block via the pressing plate, and the pressing plate is embedded with a first guide sleeve that matches the guide column; The pressure-bearing assembly includes a pressure-bearing seat, a fastening screw hole for installing a fastening screw is provided at the side end of the pressure-bearing seat, a threaded molding groove is provided inwardly at the center of the upper side of the pressure-bearing seat, a demoulding through hole is provided at the bottom end of the molding groove, a heating tube is installed at the periphery of the molding groove of the pressure-bearing seat, an electromagnetic heating coil is installed at the periphery of the heating tube of the pressure-bearing seat, and a second guide sleeve cooperating with the guide column is embedded and installed on the pressure-bearing seat; The demoulding assembly includes a vertical plate seat, a horizontal plate seat, a lifting push rod, a rotating joint, a demoulding rod, a movable bottom plate, a connecting block, a flip motor and a belt transmission member. The horizontal plate seat is fixed to the bottom plate of the frame through the vertical plate seat, the movable end of the lifting push rod is connected to the bottom end of the demoulding rod through a rotating joint, the top end of the demoulding rod is embedded in the connecting block fixed on the lower side of the movable bottom plate, the flip motor is fixed on the vertical plate seat, and the flip motor is connected to the demoulding rod through a belt transmission member installed in the horizontal plate seat.

2. The SMC molding die for easy demoulding according to claim 1, characterized in that: The top plate of the frame is provided with a push rod installation groove for facilitating installation of a punch push rod, and the side plate of the frame is provided with a fastening through hole for facilitating the passage of a fastening screw.

3. The SMC molding die for easy demoulding according to claim 1, characterized in that: The heating tube is made of a stainless steel material that can be heated by electromagnetic force.

4. The SMC molding die for easy demoulding according to claim 1, characterized in that: The pressure bearing seat is made of a heat-conducting ceramic material.

5. The SMC molding die for easy demoulding according to claim 1, characterized in that: Axial key grooves are symmetrically arranged on the outer side of the rod body of the demoulding rod.

6. The SMC molding die for easy demoulding according to claim 5, characterized in that: The belt transmission component is composed of a driving pulley, a transmission belt and a driven pulley. The driving pulley is fixed to the output shaft of the flip motor. The transmission belt is sleeved on the outside of the driving pulley and the driven pulley. A through hole is opened at the center of the driven pulley to facilitate the passage of the demolding rod. The inner wall of the through hole is symmetrically provided with radial convex keys that are inserted into the axial keyway.

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