Automatic push-pull mode filter plate handle injection molding mold and corresponding filter plate handle

Abstract

The invention discloses an automatic push-pull demoulding mode filter plate handle injection molding mold and a corresponding filter plate handle, the mold includes an upper mold and its pouring system, a combined lower mold, an ejection device, an automatic core pulling demoulding mechanism, and a built-in cooling system; the key points of the innovative solution are: (1) through automation upgrade, an automatic core pulling demoulding mechanism is added to achieve one-time core loading and automatic core pulling, improve the automation level and service life of the injection mold, and upgrade the mold to increase efficiency; (2) through optimized design: modularization is flexible and maneuverable, which facilitates continuous improvement of injection molded parts, the double-layer push-pull demoulding slide makes the overall structure of the mold more compact, and the built-in circulating cooling system makes the cooling effect of the plastic parts better; it solves the technical problems that manual core loading is easy to dislocate and affect the quality of injection molded parts, manual core pulling is labor-intensive and has low production efficiency, and the cooling effect of the external cooling water pipe is poor. The filter plate handle, that is, a non-processing polypropylene filter plate handle, is injection molded using the mold to ensure the quality of the filter plate handle and improve production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of filter press and injection mold automation, and relates to an automatic demolding filter plate handle injection molding mold. Background Art

[0002] Injection molding is a method for producing industrial products; molding injection molding is an injection molding method for processing-free products; injection molds are molds and tools for producing the required products by injection molding; filter plate handle injection molding mold is an injection mold for producing processing-free filter plate handles; filter plate handle injection mold is a manual demolding injection mold, which is mainly composed of an upper mold (movable mold), a lower mold (fixed mold), a movable insert, a cooling water pipe, etc.

[0003] The filter plate handle, i.e. the polypropylene filter plate support handle, has a guide groove and double mounting holes that match the positioning guide rail; the filter plate handle is a common component for the filter plate and the plate pulling mechanism, and has two major functions: load-bearing and sliding: 1. The filter plate handle supports the filter plate to be arranged on the guide rail on the main beam of the filter press, and the filter plate is pressed by the oil cylinder, and the concave parts (cavity parts) of the adjacent filter plates clamping the filter cloth form the filter chamber; 2. The plate pulling mechanism slides the filter plate handle to pull the filter plate apart to realize gravity cake unloading.

[0004] The opening and closing process of the manual release mode injection mold is: when closing the mold, manually place multiple movable inserts at the corresponding positions of the mold cavity, and close the mold for pouring; when opening the mold, the mold is opened after the injection is completed and cooled, and the filter plate handle and the movable insert are ejected from the mold together, and the filter plate handle and the movable insert are manually separated.

[0005] The existing manual demoulding injection mold has the following defects: 1. When closing the mold, manual core installation (placing movable inserts) is prone to misalignment, affecting the quality of the filter plate handle and even causing it to be scrapped; 2. When opening the mold, the injection molding equipment has a narrow space and a high temperature environment. Manual core pulling (separating the filter plate handle from the movable insert) is labor-intensive and easy to damage the filter plate handle and the movable insert, affecting the service life of the mold; 3. The cooling effect of the external cooling water pipe is poor; (4) Manual demoulding has low production efficiency. Due to the special product structure and injection molding process, automatic demoulding is a technical problem that large filter press factories (mass production of filter plate handles) have always been eager to solve but have never been successful. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the existing manual release mode injection mold, solve the technical problems that manual core installation (placing movable inserts) is easily misplaced and affects the quality of the filter plate handle, manual core pulling (separating the filter plate handle from the movable insert) is labor-intensive and has low production efficiency, and the cooling effect of the external cooling water pipe is poor, and provide an automatic push-pull release mode filter plate handle injection molding mold and a corresponding filter plate handle; the corresponding filter plate handle refers to the filter plate handle produced by the automatic push-pull release mode filter plate handle injection molding mold, which is abbreviated due to the limited number of words in the patent name.

[0007] An automatic push-pull mode filter plate handle injection molding mold (hereinafter referred to as: automatic mode handle injection mold), the main points of the overall technical solution are: compared with the existing technology, the innovative overall structure has outstanding substantial features: (1) two hydraulic drive cylinders (pull cylinder, push cylinder) are added, and the two existing sets of necessary manual movable inserts are improved into automatic sliding cylindrical core side seats plus cylindrical core inserts, so as to realize one-time fixed core loading and automatic core pulling, ensure that the cylindrical core inserts are not misaligned, improve product quality, ensure that the filter plate handle and the movable inserts are not damaged, and increase the service life of the mold, liberate labor and improve production efficiency; (2) the modular structure of the innovative molding parts makes the trapezoidal inserts, cylindrical core inserts, and cylindrical The core side seat and the transmission carriage are assembled into a whole, and the relative positions of the molded parts are accurate to ensure product quality; (3) The innovative double-layer push-pull demoulding slide, including split slides on both sides, makes the overall structure of the mold compact, effectively reduces the external dimensions of the mold, and better adapts to the narrow space of the injection molding equipment; (4) The innovative built-in circulating cooling system simplifies the redundant exposed cooling water pipes, making the mold more streamlined and the cooling effect better, avoiding the adhesion phenomenon of polypropylene handle injection molding; thus, it solves the technical problems of manual core installation (placing movable inserts) easily misaligned to affect the quality of the filter plate handle, manual core pulling (separating the filter plate handle and the movable insert) with high labor intensity and low production efficiency, and poor cooling effect of external cooling water pipes. The specific design plan is as follows:

[0008] The structure of the main components: The automatic demoulding handle injection mold mainly consists of an upper mold and its pouring system, a combined lower mold, an ejection device, an automatic core-pulling demoulding mechanism, and a built-in cooling system. The main material is mold steel; (1) The upper mold is an integral upper mold, including an upper mold body, an upper mold positioning block, a pouring system and a pouring port; (2) The combined lower mold is a modular combined lower mold, including a lower mold body and its lower slide, a trapezoidal insert, a cylindrical core insert, a cylindrical core side seat, a transmission slide, a matching insert and a side core; (3) The ejection device includes Automatic ejector rod, return spring, ejector device seat; (4) the automatic core-pulling demoulding mechanism is a dual hydraulic cylinder driven automatic core-pulling demoulding mechanism, which is composed of a pull cylinder transmission part and a push cylinder transmission part; the pull cylinder transmission part includes a pull cylinder, an integral slide, and a sloped slide block; the push cylinder transmission part includes a push cylinder, two-side split slides, a double U-groove slide block, and a transmission drag plate (shared with the lower mold); (5) the built-in cooling system is a built-in circulating cooling system, including built-in cooling water pipes for each molded part of the combined lower mold.

[0009] Innovative parts shape and structure; (1) Combined lower mold parts: The lower mold body has a partial three-dimensional model corresponding to the injection molded filter plate handle, and has a cylindrical core side seat sliding slot corresponding to the cylindrical core side seat to ensure that the cylindrical core insert can be pulled out;

[0010] The lower slide is a channel prepared for demoulding the side core without a reserved slide hole at the top of the injection molded part, and is modularly assembled with the lower mold body; the trapezoidal insert corresponds to the trapezoidal shape of the filter plate handle and has a connecting head corresponding to the sloped slider; the cylindrical core insert corresponds to the circular hole of the filter plate handle and has a built-in cooling water pipe; the cylindrical core side seat has an embedding hole corresponding to the cylindrical core insert and a connecting head corresponding to the transmission slide; the transmission slide is a rectangular slide without four corners, with embedding holes corresponding to the cylindrical core side seat and a connecting structure corresponding to the double U-groove slide; (2) Automatic core-pulling demoulding mechanism parts: the integral slide is a rectangular parallelepiped, with a slide corresponding to the sloped slider in the middle and symmetrical steps at both ends; the sloped slider has a structure connecting the pull cylinder and the trapezoidal insert in the middle, which is in clearance with the integral slide, and the sliding distance is greater than the depth of the trapezoidal insert embedded in the injection molded part; the two-side split slides are two split slides, and a single integral body is as shown in "7". The double U-shaped groove slider has slideways corresponding to the double U-shaped groove sliders; the double U-shaped groove sliders have slideways corresponding to the split slideways on both sides at both ends, and a structure connecting the push cylinder and the transmission carriage in the middle.

[0011] The connection relationship of the main components is as follows: (1) Assembly of the combined lower die: the transmission slide is installed under the lower die body, the cylindrical core side seat is embedded in the transmission slide, and the cylindrical core insert is embedded in the cylindrical core side seat; (2) Assembly of the pull-type cylinder transmission part: the integral slide is installed on the split slides on both sides, the sloped slider is placed in the integral slide and connected to the pull-type cylinder, and the trapezoidal insert is embedded in the sloped slider; it has the function of automatically pulling the trapezoidal insert; (3) Assembly of the push-type cylinder transmission part: the split slides on both sides are installed under the integral slides, the double U-groove sliders are placed in the split slides on both sides and connected to the push-type cylinder, the transmission slide The plate is connected to a double U-groove slider; it has the function of automatically pushing the transmission slide and driving the cylindrical core insert; (4) Assembly of the automatic demoulding handle injection mold: the combined lower mold is installed on the ejection device, and the automatic core-pulling demoulding mechanism is installed on the rear side of the combined lower mold, wherein the push-type cylinder transmission part is located above the pull-type cylinder transmission part, and the built-in cooling system runs through each molding part including the trapezoidal insert, the cylindrical core insert, and the cylindrical core side seat, and the upper mold is closed on the top of the combined lower mold; the push-type cylinder and the pull-type cylinder are connected to the hydraulic station; the whole is placed in the injection molding equipment, and has the function of injection molding the filter plate handle and automatically pulling the core and automatically ejecting the filter plate handle.

[0012] The present invention also provides a filter plate handle, that is, a processing-free polypropylene filter plate handle, which is injection-molded using the automatic push-pull-release mode filter plate handle injection molding mold provided by the present invention; the filter plate handle is mainly composed of a handle body, a handle mounting seat, a V-shaped sliding guide groove, and a handle mounting hole; and it has two major functions of supporting the filter plate and moving the filter plate.

[0013] The automatic push-pull demoulding mode filter plate handle injection molding mold and the corresponding filter plate handle provided by the present invention have the advantages of modular molding parts, fixed core loading, automatic core pulling, automatic ejection, built-in circulating cooling, compact structure, and no processing of plastic parts; the beneficial effects are: (1) by adding an automatic core pulling demoulding mechanism, one-time fixed core loading and automatic core pulling are realized, ensuring that the cylindrical core insert is not misaligned, improving the automation level and product quality, ensuring that the filter plate handle and the movable insert are not damaged, and improving the service life of the mold, freeing up labor and improving production efficiency; (2) by innovating the modular structure of molding parts, the relevant molding parts are assembled to form a whole, and the relative position is accurate, ensuring product quality; (3) the innovative double-layer push-pull demoulding slide, including split slides on both sides, makes the overall structure of the mold compact; (4) the innovative built-in circulating cooling system makes the cooling effect of plastic parts better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the general assembly of the injection molding mold for the automatic push-pull-release mode filter plate handle of the present invention (excluding the upper mold).

[0015] Figure 2 It is a schematic diagram of the assembly of the automatic core-pulling demoulding mechanism and related molding parts of the injection molding mold of the automatic push-pull demoulding mode filter plate handle of the present invention.

[0016] Figure 3 It is a schematic diagram of the upper mold of the injection molding mold of the automatic push-pull-release mode filter plate handle of the present invention.

[0017] Figure 4 It is a schematic diagram of the cylindrical core side seat of the injection molding mold of the automatic push-pull-release mode filter plate handle of the present invention.

[0018] Figure 5 It is a schematic diagram of the integral slideway of the injection molding mold of the automatic push-pull-release mode filter plate handle of the present invention.

[0019] Figure 6 It is a schematic diagram of the sloped slider of the injection molding mold of the automatic push-pull-release mode filter plate handle of the present invention.

[0020] Figure 7 It is a schematic diagram of the split slideways on both sides of the injection molding mold for the automatic push-pull mode filter plate handle of the present invention (single slideway).

[0021] Figure 8It is a schematic diagram of a double U-groove slider of an injection molding mold for an automatic push-pull-release mode filter plate handle of the present invention.

[0022] Fig. 9 It is a schematic diagram of the transmission carriage of the injection molding mold of the automatic push-pull mode filter plate handle of the present invention.

[0023] Fig.10 This is a schematic diagram of a filter plate handle produced by the automatic push-pull-release mode filter plate handle injection molding mold of the present invention.

[0024] Figure markings: 1-trapezoidal insert, 2-cylindrical core insert, 3-cylindrical core side seat, 4-integral slide, 5-slope slider, 6-split slides on both sides, 7-double U-groove slider, 8-transmission slide, 9-upper mold body, 10-lower mold body, 11-automatic ejector rod, 12-reset spring, 13-ejector device seat, 14-pull cylinder, 15-push cylinder, 16-upper mold positioning block, 17-lower slide, 18-built-in cooling system, 19-pouring gate, 21-handle body, 22-handle mounting seat, 23-V-shaped sliding guide groove, 24-handle mounting hole. DETAILED DESCRIPTION

[0025] The following describes the technical solutions in the embodiments of the present invention in conjunction with the drawings of the automatic push-pull demoulding mode filter plate handle injection molding mold and the corresponding filter plate handle embodiments of the present invention. The described embodiments are only part of the preferred embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other non-creative embodiments made by those skilled in the art, such as the filter plate handle injection molding mold with the same automatic push-pull demoulding mode and similar structure, belong to the protection scope of the present invention.

[0026] Example 1

[0027] An automatic push-pull mode filter plate handle injection molding mold (abbreviated as: automatic mode handle injection mold), the main points of the innovative overall implementation plan are: (1) adding two hydraulic drive cylinders (including a pull cylinder 14 and a push cylinder 15), and improving the existing two sets of necessary manual movable inserts into automatic sliding cylindrical core side seats 3 plus cylindrical core inserts 2, so as to achieve one-time fixed core loading and automatic core pulling, ensure that the cylindrical core insert 2 is not misaligned, improve product quality, ensure that the filter plate handle and the movable insert are not damaged, and increase the service life of the mold, liberate labor and improve production efficiency; (2) innovation The modular structure of the new molded parts enables the trapezoidal insert 1, the cylindrical core insert 2, the cylindrical core side seat 3, and the transmission slide 8 to form a whole after assembly. The relative positions of the molded parts are accurate, ensuring product quality; (3) The innovative double-layer push-pull demolding slide, including the split slides 6 on both sides, makes the overall structure of the mold compact, effectively reduces the external dimensions of the mold, and better adapts to the narrow space of the injection molding equipment; (4) The innovative built-in circulating cooling system 18 simplifies the redundant exposed cooling water pipes, making the mold more streamlined and the cooling effect better, avoiding the adhesion phenomenon of polypropylene handle injection molding.

[0028] The specific implementation scheme is: the automatic demoulding handle injection mold mainly consists of an upper mold and its pouring system, a combined lower mold, an ejector device, an automatic core-pulling demoulding mechanism, and a built-in cooling system 18, and the main material is mold steel; the detailed description is as follows:

[0029] The upper mold is an integral upper mold, including an upper mold body 9, an upper mold positioning block 16, a pouring system and a pouring port 19; the upper mold body 9 has a partial three-dimensional model corresponding to the injection molded filter plate handle; the upper mold is combined on the upper of the combined lower mold; it is used to synthesize a complete three-dimensional model corresponding to the injection molded filter plate handle with the combined lower mold, and pour polypropylene.

[0030] The combined lower mold is a modular combined lower mold, including a lower mold body 10 and its lower slide 17, a trapezoidal insert 1, a cylindrical core insert 2, a cylindrical core side seat 3, a driving slide 8, matching inserts and side cores; (1) the lower mold body 10 has a partial three-dimensional model corresponding to the injection molded filter plate handle, and has a cylindrical core side seat sliding long hole corresponding to the cylindrical core side seat 3, so as to ensure that the cylindrical core insert 2 can be cored; the lower mold body 10 is installed on the ejection device; it is used to install the molded parts and the upper mold to form a complete three-dimensional model corresponding to the injection molded filter plate handle; the lower slide 17 is a channel prepared for the side core without a reserved slide hole at the top of the injection molded part during demoulding, and is modularly assembled with the lower mold body 10; (2) the trapezoidal insert 1 corresponds to the trapezoidal shape of the filter plate handle, and has a corresponding sloped slide block 5 The trapezoidal insert 1 is embedded in the sloped slider 5; (3) the cylindrical core insert 2 corresponds to the circular hole of the filter plate handle and has a built-in cooling water pipe; the cylindrical core insert 2 is embedded in the cylindrical core side seat 3; it is used for injection molding the handle mounting hole and cooling the injection molded part; (4) the cylindrical core side seat 3 has a corresponding embedding hole of the cylindrical core insert 2 and a corresponding connecting insert of the transmission carriage 8; the cylindrical core side seat 3 is embedded in the transmission carriage 8; it is used to install the cylindrical core insert 2 and make it move with the transmission carriage 8; (5) the transmission carriage 8 is a rectangular carriage without four corners, having a corresponding embedding hole of the cylindrical core side seat 3 and a connecting structure corresponding to the double U-groove slider 7; the transmission carriage 8 is installed under the lower mold body 10; it is used to install the cylindrical core side seat 3 and make it move with the push cylinder 15.

[0031] The ejector device includes an automatic ejector rod 11, a return spring 12, and an ejector device seat 13, which are located below the combined lower mold; the automatic ejector rods 11 are distributed at the four corners of the lower mold body 10, and have a function of strengthening the support of the lower mold body 10, and the remaining automatic ejector rods 11 are distributed at different positions to realize the ejection of the injection molded part from different directions; it is used to automatically eject the injection molded part (filter plate handle) after core pulling.

[0032] The automatic core-pulling and demoulding mechanism is a dual hydraulic cylinder driven automatic core-pulling and demoulding mechanism, which is composed of a pull cylinder transmission part and a push cylinder transmission part, and is installed on the rear side of the combined lower mold; it has the functions of automatic core pulling and automatic demoulding.

[0033] The pulling cylinder transmission part includes a pulling cylinder 14, an integral slide 4, and a sloped slide block 5; it is located below the push cylinder transmission part and has the function of automatically pulling the trapezoidal insert 1 to be demoulded; (1) the pulling cylinder 14 is a pulling hydraulic cylinder, including a cylinder barrel, a cylinder head, a piston rod, a piston, a guide sleeve, and a buffer device. The pulling cylinder 14 is connected to the hydraulic station, and its piston rod is connected to the sloped slide block 5; it is used to pull the sloped slide block 5; (2) the integral slide 4 is a rectangular parallelepiped, There is a slideway corresponding to the sloped slider 5 in the middle, and symmetrical steps at both ends; the integral slideway 4 is installed on the split slideways 6 on both sides; it is used as a guide slideway for the sloped slider 5; (3) The sloped slider 5 has a structure connecting the pull cylinder 14 and the trapezoidal insert 1 in the middle, which is clearance-matched with the integral slideway 4, and the sliding distance is greater than the depth of the trapezoidal insert 1 embedded in the injection molded part; the sloped slider 5 is placed in the integral slideway 4 and connected to the pull cylinder 14; it is used to drive the trapezoidal insert 1 to be demoulded.

[0034] The push-type oil cylinder transmission part includes a push-type oil cylinder 15, split slideways 6 on both sides, a double U-groove slider 7, and a transmission carriage 8 (shared with the lower mold), which is located above the pull-type oil cylinder transmission part and has the function of automatically pushing the cylindrical core insert 2 to pull the core; (1) The push-type oil cylinder 15 is a push-type hydraulic oil cylinder, including a cylinder barrel, a cylinder head, a piston rod, a piston, a guide sleeve, and a buffer device. The push-type oil cylinder 15 is connected to the hydraulic station, and its piston rod is connected to the double U-groove slider 7; it is used to push the double U-groove slider 7; (2) The split slideways 6 on both sides are two split slideways, and a single whole is as shown in "7". The double U-shaped groove slider 7 is in the shape of a Chinese character, and has a slideway corresponding to the double U-shaped groove slider 7; the split slideways 6 on both sides are installed under the integral slideway 4 and serve as guide slideways for the double U-shaped groove slider 7; (3) the double U-shaped groove slider 7 has sliders corresponding to the split slideways 6 on both sides at both ends, and has a structure connecting the push cylinder 15 and the transmission slide plate 8 in the middle; the double U-shaped groove slider 7 is placed in the split slideways 6 on both sides and connected to the push cylinder 15; used to drive the transmission slide plate 8; (4) the transmission slide plate 8 (shared with the lower mold) is a rectangular slide plate lacking four corners, having corresponding embedded holes of the cylindrical core side seat 3 and a connection structure corresponding to the double U-shaped groove slider 7; the transmission slide plate 8 is installed under the lower mold body 10 and connected to the double U-shaped groove slider 7; used to install the cylindrical core side seat 3 and drive the cylindrical core side seat 3 and the cylindrical core insert 2 to pull the core.

[0035] The built-in cooling system 18 is a built-in circulating cooling system, including built-in cooling water pipes for each molding part of the combined lower mold; the built-in cooling system 18 runs through each molding part including a trapezoidal insert 1, a cylindrical core insert 2, and a cylindrical core side seat 3; it is used to accelerate the cooling of injection molded parts, improve production efficiency, and avoid the formation of protrusions on the surface of injection molded parts.

[0036] Assembly of the injection mold for the automatic demoulding handle: the combined lower mold is installed on the ejection device, the automatic core-pulling demoulding mechanism is installed on the rear side of the combined lower mold, wherein the push-type cylinder transmission part is located above the pull-type cylinder transmission part, the built-in cooling system 18 runs through the trapezoidal insert 1, the cylindrical core insert 2, and the cylindrical core side seat 3, and the upper mold is closed on the combined lower mold; the push-type cylinder 15 and the pull-type cylinder 14 are connected to the hydraulic station; the whole is placed in the injection molding equipment, and has the functions of automatic core pulling and ejection of the filter plate handle for injection molding.

[0037] The automatic push-pull-and-release mode filter plate handle injection molding mold provided by the present invention has the advantages of modular molding parts, fixed core loading, automatic core pulling, automatic ejection, built-in circulating cooling, compact structure, and plastic parts processing-free; it solves the technical problems that manual core loading (placing movable inserts) is easy to be misplaced and affects the quality of the filter plate handle, manual core pulling (separating the filter plate handle from the movable insert) is labor-intensive and has low production efficiency, and the cooling effect of the external cooling water pipe is poor; it improves the automation level, production efficiency, and service life of the injection mold, ensures the quality of the filter plate handle, and has a significant overall effect.

[0038] Example 2

[0039] Working process of automatic core pulling and demoulding mechanism: The automatic core pulling and demoulding mechanism is a dual hydraulic cylinder driven automatic core pulling and demoulding mechanism of the present invention, which is composed of a pull cylinder transmission part and a push cylinder transmission part, and is installed on the rear side of the combined lower mold; it has the functions of automatic core pulling and automatic demoulding; the working process is as follows:

[0040] When the mold cavity is filled with polypropylene and the injection molded part is cooled, the pull cylinder transmission part and the push cylinder transmission part move in the opposite direction synchronously: (1) Automatic core pulling: The pull cylinder 14 pulls the sloped slider 5 and drives the trapezoidal insert 1 to be demolded; the push cylinder 15 pushes the double U-groove slider 7 and drives the transmission carriage 8 and the cylindrical core insert 2 to pull the core; the double cylinders pull and push, so that the trapezoidal insert 1 and the cylindrical core insert 2 are pulled out of the injection molded part; (2) Automatic demolding: The automatic core pulling demolding mechanism assists the ejection device to automatically demold; The push cylinder 15 pushes the double U-groove slider 7 and the transmission carriage 8 downward at the same time until the double U-groove slider 7 encounters the automatic ejector rod 11 and stops moving downward; the ejector device of the injection molding equipment is activated, and the automatic ejector rod 11 slowly moves from the back of the lower mold body 10 to eject the injection molded parts from different directions; the ejection action is completed, and the compressed return spring 12 rebounds, forcing the ejector device to reset in the opposite direction; the pull cylinder 14 moves downward, and the push cylinder 15 returns to its original height, and the upper and lower molds are closed for feeding.

[0041] After the upper and lower molds are closed, the upper mold positioning block 16 is embedded in the slideway of the lower mold sliding side core. The sliding side core and the positioning block 16 fit together, and the inclined surface is locked to ensure that the upper and lower molds cannot move even if air pressure is generated, thereby ensuring the precision of the injection molded part (filter plate handle).

[0042] The filter plate handle produced by the automatic push-pull mode filter plate handle injection molding mold of the present invention is a non-processing polypropylene filter plate handle, which is mainly composed of a handle body 21, a handle mounting seat 22, a V-shaped sliding guide groove 23, and a handle mounting hole 24; the V-shaped sliding guide groove 23 is a sliding guide groove that matches the positioning guide rail; it has two major functions of supporting the filter plate and moving the filter plate: (1) the filter plate handle supports the filter plate to be arranged on the guide rail on the main beam of the filter press, and the filter plate is pressed by the oil cylinder, and the concave part (i.e., the cavity part) of the adjacent filter plate clamped by the filter cloth forms a filter chamber; (2) the plate pulling mechanism slides the filter plate open through the filter plate handle to realize gravity cake unloading.

[0043] The automatic push-pull demoulding mode filter plate handle injection molding mold and the corresponding filter plate handle provided by the present invention have the following beneficial effects: (1) through automation upgrade, an automatic core pulling and demoulding mechanism is added to realize one-time fixed core loading and automatic core pulling, thereby improving the automation level, production efficiency and service life of the injection mold, ensuring the quality of the filter plate handle, and upgrading the mold to increase efficiency; (2) through optimized design: modularization and flexibility facilitate continuous improvement of injection molded parts, the double-layer push-pull demoulding slide makes the overall structure of the mold more compact, and the built-in circulating cooling system 18 makes the cooling effect of the plastic parts better; the comprehensive effect is significant.

Claims

1. An automatic push-pull mode filter plate handle injection molding mold, including an upper mold and its pouring system, a combined lower mold, an ejection device, an automatic core-pulling demoulding mechanism, and a built-in cooling system, the main material is mold steel; the characteristics are: The combined lower mold is a modular combined lower mold, including a lower mold body and its lower slide, trapezoidal inserts, cylindrical core inserts, cylindrical core side seats, transmission slides, matching inserts and side cores; the lower mold body has a partial three-dimensional model corresponding to the injection molded filter plate handle, and has a cylindrical core side seat sliding long hole corresponding to the cylindrical core side seat; the automatic core pulling and demoulding mechanism is composed of a pull cylinder transmission part and a push cylinder transmission part; the pull cylinder transmission part includes a pull cylinder, an integral slide, and a sloped slider; the push cylinder transmission part includes a push cylinder, two-side split slides, a double U-groove slider, and a transmission slide; the built-in cooling system is a built-in circulating cooling system, including built-in cooling water pipes for each molded part of the combined lower mold; the mutual connection relationship is: (1) the transmission slide is installed under the lower mold body, and the cylindrical core side seat is embedded in the transmission On the drag plate, the cylindrical core insert is embedded in the cylindrical core side seat; (2) the integral slide is installed on the split slides on both sides, the sloped slider is placed in the integral slide and connected to the pull-type cylinder, and the trapezoidal insert is embedded in the sloped slider; it has the function of automatically pulling the trapezoidal insert; (3) the split slides on both sides are installed under the integral slide, the double U-groove slider is placed in the split slides on both sides and connected to the push-type cylinder, and the transmission drag plate is connected to the double U-groove slider; it has the function of automatically pushing the transmission drag plate and driving the cylindrical core insert; (4) the combined lower mold is installed on the ejection device, and the automatic core pulling and demolding mechanism is installed on the rear side of the combined lower mold, wherein the push-type cylinder transmission part is located above the pull-type cylinder transmission part, the built-in cooling system runs through each molding part, and the upper mold is combined on the top of the combined lower mold; it has the function of injection molding the filter plate handle and automatically pulling the core and automatically ejecting the filter plate handle.

2. The automatic push-pull mode filter plate handle injection molding mold according to claim 1 is characterized by: The integral slide is a rectangular parallelepiped, with a slide corresponding to the sloped slider in the middle and symmetrical steps at both ends; the sloped slider has a structure connecting the pull-type oil cylinder and the trapezoidal insert in the middle, which is clearance-matched with the integral slide, and the sliding distance is greater than the depth of the trapezoidal insert embedded in the injection molded part; the split slides on both sides are two split slides, a single whole is in the shape of a "7", and has a slide corresponding to the double U-groove slider; the double U-groove slider has sliders corresponding to the split slides on both sides at both ends, and a structure connecting the push-type oil cylinder and the transmission drag plate in the middle.

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