CN216423322U - Bending pin injection mold teaching aids - Google Patents

Abstract

The utility model relates to the technical field of mold teaching aids, and discloses a bending pin inwardly pumping injection mold teaching aid, comprising a shell assembly and a molding assembly, wherein the shell assembly comprises a fixed mold bottom plate, the bending pin inwardly extracting the injection mold teaching aid, through a nozzle for upper Plastic is injected into the mold core and the lower mold core. When the material needs to be unloaded to open the mold after molding, the fixed template is pushed out by the elastic force of the mold opening spring on the solid push plate. At this time, the pulling nail drives the hook nail to drive the casting. The condensate is separated from the plastic parts, and at the same time, the condensate push plate is driven to open to release the condensate. At the same time, the bending pin drives the two sliders to slide out of the mold. When the plastic part is pushed down to move forward, the inclined guide rod moves inward along the slideway of the push plate under the action of the slider to complete the movement of drawing out the inner drawing groove, so that the internal drawing of the plastic part is completed, and the inclined guide rod stops moving. At the same time, under the action of the jacking tube, the plastic parts are ejected from the mold, and the entire mold teaching aids are also completed.

Description

Bending pin injection mold teaching aids

technical field

The utility model relates to the technical field of mold teaching aids, in particular to a teaching aid for injection molds for inner pumping of curved pins.

Background technique

Plastic injection molding molds are important equipment for the production of various products. With the continuous development of mold design and manufacturing technology, the application of plastic products has become more and more extensive. In recent years, in aviation, aerospace, electronics, robots, ships, It is widely used in various industries such as automobile and civil.

At present, the injection mold teaching aids purchased in the market are all made of aluminum alloy and ABS plastic materials, and the internal structure of the injection mold must be disassembled in the actual teaching so that the students can see the internal mold design clearly. It needs to be disassembled for teaching. Because disassembly is troublesome, teachers are time-consuming and laborious in teaching, and teaching aids are disassembled and assembled for a long time, and the service life is short.

Utility model content

(1) Technical problems solved

Aiming at the deficiencies of the prior art, the utility model provides a teaching aid for the injection mold with a curved pin, which has the advantage of being easy to disassemble the entire structure, and solves the problem that the existing mold teaching aid has to be disassembled every time it is demonstrated. The teaching aids are not easy to disassemble, which shortens the life of the teaching aids.

(2) Technical solutions

In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a teaching aid for inner pumping of an injection mold with a curved pin, including a shell assembly and a molding assembly, the shell assembly includes a fixed mold bottom plate, and the bottom of the fixed mold bottom plate is provided with a condensate push plate , the bottom of the concrete push plate is symmetrically provided with a die-opening spring, the bottom of the die-opening spring is provided with a fixed template, the bottom of the fixed template is symmetrically slidingly connected with a slider, and the bottom of the fixed template is provided with an upper A mold core, the bottom of the two sliding blocks is provided with a movable template, the top of the movable template is provided with a lower mold core that matches the upper mold core, and the inner top surface of the fixed mold bottom plate is symmetrically provided with a curved pin , one end of the two bending pins penetrates through the concrete push plate, the fixed template and the two sliders respectively and is inserted into the movable template, the bottom of the movable template is provided with a push plate, the push plate The bottom of the plate is provided with a movable mold bottom plate;

The forming assembly includes a nozzle, the top of the fixed mold bottom plate is provided with a nozzle, and hook nails are symmetrically provided on both sides of the nozzle, the nozzle penetrates the condensate push plate and the fixed plate, and is connected with the upper plate. The mold cores are connected, and the inner bottom surface of the movable mold bottom plate is provided with a plurality of jacking pipes and inclined guide rods, and a plurality of the jacking pipes and the inclined guide rods pass through the push plate and the moving template and are connected with the The lower mold cores are connected, the inner top of the fixed mold bottom plate is provided with a limit nail, and the bottom of the fixed mold bottom plate is connected with a material pulling nail.

Preferably, the top of the push plate is provided with a reset rod, and the outer side wall of the reset rod is provided with a spring.

By adopting the above solution, the reset rod and spring provided on the top of the movable mold bottom plate can reset the ejector tube after the device is ejected, so as to avoid position deviation and affect the next use.

Preferably, the fixed mold base plate, the condensate push plate, the fixed template, the movable template, the push plate and the push plate are all transparent PVC plastic sheets.

By adopting the above scheme, the existing mold teaching aids are all made of aluminum alloy and ABS plastic, and the transparency of the internal structure of the device is poor, which is not conducive to teachers' teaching in actual teaching, and the teaching is not intuitive. , The fixed template, the movable template, the push plate and the push plate are all set as transparent PVC plastic plates, which can facilitate teachers' teaching.

Preferably, the nozzle is a pin-point gate.

By adopting the above solution, by setting the nozzle as a pin-point gate, it can ensure that the plastic is fed uniformly, leaving no obvious trace of the gate on the plastic part, and at the same time simplifying the structure of the mold.

Preferably, a lift assembly is provided on the top of the fixed mold base plate, the lift assembly includes a casing, the top of the fixed mold base plate is provided with the casing, and a support rod is provided on the top of the casing, and the The top of the support rod is provided with a frame body, the top of the frame body is provided with a rod body and a handle, one end of the rod body passes through the top of the frame body and is connected with a diverter one, the two sides of the diverter one are A transmission rod is symmetrically arranged at one end of the two transmission rods with a steering gear The inner side bottom bearing is connected, the inner side of the frame body is symmetrically provided with a movable groove, the outer side wall of the screw rod 1 is provided with a threaded sleeve, and the outer side wall of the threaded sleeve is provided with a connecting rod, and the connecting rod passes through The movable slot is connected with a lift rod, and the bottom of the lift rod is provided with a bottom plate.

By adopting the above solution, through the casing set on the top of the fixed mold bottom plate, the support rod is set on the top of the casing, the frame body is set on the top of the support rod, the rod body set on the top of the frame body is The first steering gear in the body, the two output ends of the steering gear 1 are provided with a transmission rod, the output end of the transmission rod is provided with a screw rod 1, and a threaded sleeve is arranged on the outer side wall of the screw rod 1. A connecting rod is arranged on the outer side wall. The connecting rod passes through the movable slot and connects with the lifting rod. Therefore, when the rod body is rotated, it can drive the screw rod to rotate and drive the threaded sleeve to move up and down. A bottom plate is set at the bottom of the lifting rod. As a supporting function, the mold is lifted by lifting and lowering the lifting rod, which is convenient for teachers to demonstrate and students to observe.

Preferably, the outer side wall of the support rod is provided with a rotating assembly, the rotating assembly includes a bearing sleeve, the outer side wall of one end of the support rod is provided with the bearing sleeve, and the frame body and the bearing sleeve pass through a cylinder connection, the outer side wall of the bearing sleeve is provided with a second screw rod, and one end of the second screw rod passes through the outer side wall of the cylinder.

By adopting the above scheme, the bearing sleeve is arranged on the outer side wall of one end of the support rod, and the bearing sleeve and the frame are connected through a cylinder, so that the teacher can rotate the whole teaching aid, so that the teaching can be carried out in an all-round way, which simplifies the operation. , When the use is completed, to prevent the parts from being damaged due to continuous rotation of the teaching aids, the teaching aids can be limited and fixed by twisting the second screw.

Preferably, the lift rod and the bottom plate are connected by bolts.

By adopting the above solution, by connecting the lifting rod and the bottom plate by bolts, it is convenient to replace the bottom plate in the later stage, so as to avoid damage to the bottom plate and affect the use of teaching aids.

(3) Beneficial effects

Compared with the prior art, the present utility model provides a teaching aid for inner pumping of a curved pin injection mold, which has the following beneficial effects:

The bending pin is used to draw the injection mold teaching aid, and the plastic is injected into the upper mold core and the lower mold core through the nozzle. At this time, the pulling nails drive the hooking nails to drive the gate condensate away from the plastic parts, and at the same time drive the condensate push plate to open to release the condensate. The bottom of the fixed mold bottom plate is provided with a pull nail to restrict the condensate push plate. At the same time, the bending pin drives the two sliders to slide out of the mold. Under the action of the mold opening force, the molds are separated along the parting surface. Under the action of the push plate slideway, it moves inward along the slideway of the push plate to complete the movement of the inner pumping groove, so that the inner pumping of the plastic part is completed, and the oblique guide rod stops moving. At the same time as the ejection, the entire mold teaching aid is also completed. The whole set of actions is simple and easy to operate, and the teaching is relatively labor-saving. The internal extraction of the curved pin also greatly increases the extraction distance, which can be easily disassembled at the same time. It also ensures the stability of the mold. The setting of the slide block can also increase the service life of the teaching aids and ensure the accurate reset of the slide block. The reset rod and spring set on the top of the movable mold bottom plate can make the top of the plastic part ejected. The tube is reset to avoid position deviation and affect the next use. The existing mold teaching aids are made of aluminum alloy and ABS plastic materials, and the transparency of the internal structure is poor, which is not conducive to teachers' teaching in actual teaching. Set the fixed mold base plate, solidified material push plate, fixed template, movable template, push plate and push plate as transparent PVC plastic plates, which can facilitate teachers' teaching. By setting the nozzle as a pin-point gate, the plastic feeding can be guaranteed Uniform, leaving no obvious traces of gates on the plastic parts, while simplifying the structure of the mold.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation inside the side of the utility model;

Fig. 3 is the structural representation inside the bottom of the utility model;

Fig. 4 is the structural representation inside the top of the utility model;

Fig. 5 is the structural schematic diagram of the utility model installation and lifting;

6 is a schematic structural diagram of the interior of the lifting assembly in the present invention;

Fig. 7 is the structural representation inside the frame body in the utility model;

8 is a schematic structural diagram of the interior of the cylinder in the present invention.

In the picture:

1. Shell assembly; 11. Fixed mold bottom plate; 111, Bending pin; 12. Condensate push plate; 121, Mold opening spring; 13. Fixed template; 141. Lower die core; 15. Push plate; 16. Moving die bottom plate;

2. Forming components; 21, Nozzle; 211, Hook nail; 22, Jacking pipe; 23, Oblique guide rod; 24, Pull nail; 241, Limit nail; 25, Reset rod; 251, Spring;

3. Lifting assembly; 31, housing; 311, support rod; 32, frame body; 321, rod body; 322, handle; 323, movable groove; 33, steering gear one; 331, transmission rod; 34, steering gear two ; 341, screw one; 35, threaded casing; 351, connecting rod; 36, lifting rod; 37, bottom plate;

4. Rotating components; 41, bearing sleeve; 42, cylinder; 43, screw two.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

The teaching aid for inner pumping injection molds for curved pins includes a shell assembly 1 and a molding assembly 2. The shell assembly 1 includes a fixed mold bottom plate 11, and the bottom of the fixed mold bottom plate 11 is provided with a condensate push plate 12. The condensate push plate The bottom of 12 is symmetrically provided with a die-opening spring 121, the bottom of the die-opening spring 121 is provided with a fixed plate 13, the bottom of the fixed plate 13 is symmetrically slidably connected with a slider 132, and the bottom of the fixed plate 13 is provided with an upper plate. The mold core 131, the bottom of the two sliding blocks 132 is provided with a movable template 14, the top of the movable template 14 is provided with a lower mold core 141 that cooperates with the upper mold core 131, and the inner top of the fixed mold bottom plate 11 is provided. Bending pins 111 are arranged symmetrically on the plane, and one end of the two bending pins 111 penetrates through the concrete push plate 12 , the fixed platen 13 and the two sliding blocks 132 respectively, and is inserted into the movable platen 14 . The bottom of the movable template 14 is provided with a push plate 15, and the bottom of the push plate 15 is provided with a movable mold bottom plate 16;

The molding assembly 2 includes a nozzle 21 , a nozzle 21 is provided on the top of the fixed mold bottom plate 11 , and hook nails 211 are symmetrically provided on both sides of the nozzle 21 , and the nozzle 21 penetrates the aggregate push plate 12 and all the The fixed template 13 is communicated with the upper mold core 131, and the inner bottom surface of the movable mold bottom plate 16 is provided with a plurality of jacking pipes 22 and inclined guide rods 23, and a plurality of the jacking pipes 22 and the inclined guide rods 23 penetrates through the push plate 15 and the movable platen 14 and communicates with the lower mold core 141, the inner top of the fixed mold bottom plate 11 is provided with a limiting nail 241, and the bottom of the fixed mold bottom plate 11 is connected with a pull material nail 24;

The top of the push plate 15 is provided with a reset rod 25, the outer side wall of the reset rod 25 is provided with a spring 251, the fixed mold bottom plate 11, the condensate push plate 12, the fixed mold plate 13, the movable mold The template 14, the push plate 15 and the push plate 15 are all transparent PVC plastic plates, and the nozzle 21 is a pin-point gate.

Referring to Figures 1-8, plastic is injected into the upper mold core 131 and the lower mold core 141 through the nozzle 21. When the teaching aid needs to be unloaded to open the mold after molding, the elastic force of the mold-opening spring 121 on the condensate push plate 12 is used. The template 13 is ejected. At this time, the pulling nails 24 drive the hooking nails 211 to drive the gate condensate to separate from the plastic parts, and at the same time drive the condensate push plate 12 to open to release the condensate. The bottom of the fixed mold base plate 11 is provided with pulling nails. 24 is used to limit the moving distance of the concrete push plate 12. At the same time, the bending pin 111 drives the two sliders 132 to slide out of the mold. When the part moves forward, the inclined guide rod 23 moves inward along the slideway of the push plate 15 under the action of the slider 132 to complete the movement of pulling out the inner drawing groove, so that the internal drawing of the plastic part is completed, and the inclined guide rod 23 stops moving. At this time, under the action of the ejector tube 22, the plastic part is ejected from the mold. At the same time of ejection, the entire mold teaching aid is also completed. The whole set of actions is easy to operate, and the teaching is relatively labor-saving. The extraction also greatly increases the extraction distance, which not only facilitates disassembly, but also ensures the stability of the mold. The setting of the slider 132 can also increase the service life of the teaching aid and ensure the accurate reset of the slider 132. The reset rod 25 and the spring 251 provided on the top of the bottom plate 16 can reset the top tube 22 after the plastic part is ejected, so as to avoid position deviation and affect the next use. The existing mold teaching aids are made of aluminum alloy and ABS. It is made of plastic material, and its internal structure has poor transparency, which is not conducive to teachers' teaching in actual teaching, and the teaching is not intuitive. 15 are all set as transparent PVC plastic sheets, which is convenient for teachers to teach. By setting the nozzle 21 as a pin-point gate, it can ensure that the plastic feed is uniform, and there is no obvious trace of the gate on the plastic parts, and the mold is simplified at the same time. added structure.

Embodiment 2

On the basis of the first embodiment, a lifting assembly 3 is added.

The top of the fixed mold base plate 11 is provided with a lift assembly 3, the lift assembly 3 includes a casing 31, the top of the fixed mold base plate 11 is provided with the casing 31, and the top of the casing 31 is provided with a support Rod 311, the top of the support rod 311 is provided with a frame body 32, the top of the frame body 32 is provided with a rod body 321 and a handle 322, one end of the rod body 321 passes through the top of the frame body 32 and is connected with Steering gear one 33, the two sides of the steering gear one 33 are symmetrically provided with transmission rods 331. One end of the two transmission rods 331 is provided with a steering gear two 34, and the output ends of the steering gear two 34 are provided with wires. Rod one 341, the other end of the screw rod one 341 is connected with the inner bottom bearing of the steering gear two 34, the inner side of the frame body 32 is symmetrically provided with a movable groove 323, and the outer side wall of the screw rod one 341 is provided with There is a threaded sleeve 35, the outer side wall of the threaded sleeve 35 is provided with a connecting rod 351, the connecting rod 351 passes through the movable groove 323 and is connected with a lifting rod 36, the bottom of the lifting rod 36 is provided with a bottom plate 37.

1-8, through the housing 31 provided on the top of the fixed mold base plate 11, a support rod 311 is provided on the top of the housing 31, a frame body 32 is provided on the top of the support rod 311, and a frame body 32 is provided on the top of the support rod 311. The rod body 321 provided at the top of the frame body 32, the steering gear one 33 inside the frame body 32, the two output ends of the steering gear one 33 are provided with a transmission rod 331, and the output end of the transmission rod 331 is provided with a screw rod one 341, in the screw rod one The outer side wall of 341 is provided with a threaded sleeve 35. Since the outer side wall of the threaded sleeve 35 is provided with a connecting rod 351, the connecting rod 351 passes through the movable groove 323 and is connected to the lifting rod 36, so when the rod body 321 is rotated, the wire can be driven. Rod one 341 rotates, and drives the threaded sleeve 35 to move up and down, and a bottom plate 37 provided at the bottom of the lifting rod 36 can be used as a support, so that the mold is lifted by lifting the lifting rod 36, which is convenient for teachers to demonstrate and students. to observe.

Embodiment 3

On the basis of the second embodiment, a rotating assembly 4 is added.

Preferably, a rotating assembly 4 is disposed on the outer side wall of the support rod 311 , and the rotating assembly 4 includes a bearing sleeve 41 , and the bearing sleeve 41 is disposed on the outer side wall of one end of the support rod 311 . The bearing sleeve 41 is connected by a cylinder 42, the outer side wall of the bearing sleeve 41 is provided with a second screw 43, one end of the second screw 43 passes through the outer side wall of the cylinder 42, and the lifting rod 36 It is connected with the bottom plate 37 by bolts.

1-8, through the bearing sleeve 41 provided on the outer side wall of one end of the support rod 311, the bearing sleeve 41 and the frame body 32 are connected through the cylinder 42, so that the teacher can rotate the whole teaching aid, so that all-round Teaching simplifies the operation. After the use is completed, to prevent the parts from being damaged due to continuous rotation of the teaching aids, the teaching aids can be limited and fixed by twisting the second screw 43, and the lifting rod 36 and the bottom plate 37 are connected by bolts, which is convenient The bottom plate 37 is replaced later to avoid damage to the bottom plate 37 and affect the use of the teaching aids.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, Alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. Draw injection mold teaching aid in angle pin, its characterized in that: the die casting machine comprises a shell component (1) and a forming component (2), wherein the shell component (1) comprises a fixed die base plate (11), a solidified material push plate (12) is arranged at the bottom of the fixed die base plate (11), die opening springs (121) are symmetrically arranged at the bottom of the solidified material push plate (12), a fixed die plate (13) is arranged at the bottom of the die opening springs (121), sliding blocks (132) are symmetrically and slidably connected to the bottom of the fixed die plate (13), upper die cores (131) are arranged at the bottom of the fixed die plate (13), movable die plates (14) are arranged at the bottoms of the two sliding blocks (132), lower die cores (141) matched with the upper die cores (131) are arranged at the top of the movable die plate (14), bent pins (111) are symmetrically arranged on the inner top surface of the fixed die base plate (11), one ends of the two bent pins (111) penetrate through the solidified material push plate (12), the fixed die plate (13) and the two sliding blocks (132) and are inserted into the movable die plate (14), a push plate (15) is arranged at the bottom of the movable template (14), and a movable template bottom plate (16) is arranged at the bottom of the push plate (15);

the molding assembly (2) comprises a nozzle (21), the top of the fixed mold base plate (11) is provided with the nozzle (21), the bilateral symmetry of the nozzle (21) is provided with hook nails (211), the nozzle (21) runs through the congeal material push plate (12) with the fixed mold plate (13) and with the upper mold core (131) are communicated, the inner side bottom surface of the movable mold base plate (16) is provided with a plurality of push pipes (22) and inclined guide rods (23), a plurality of the push pipes (22) and the inclined guide rods (23) run through the push plate (15) and the movable mold plate (14) and the lower mold core (141) are communicated, the inner side top of the fixed mold base plate (11) is provided with limit nails (241), and the bottom of the fixed mold base plate (11) is connected with the pull nails (24).

2. The invention of claim 1, wherein the bend pin inner drawing injection mold teaching aid comprises: the top of push pedal (15) is provided with release link (25), the lateral wall of release link (25) is provided with spring (251).

3. The invention of claim 2 wherein the means for teaching is a draw injection mold in a knee pin, wherein: the cover half bottom plate (11) congeal material push pedal (12) fixed die plate (13) movable mould board (14) push pedal (15) with push pedal (15) are transparent PVC plastic board.

4. The bent pin internal-extraction injection mold teaching aid of claim 3, wherein: the nozzle (21) is a pin-point gate.

5. The invention of claim 1, wherein the bend pin inner drawing injection mold teaching aid comprises: the top of cover half bottom plate (11) is provided with lifting unit (3), lifting unit (3) includes casing (31), the top of cover half bottom plate (11) is provided with casing (31), the top of casing (31) is provided with bracing piece (311), the top of bracing piece (311) is provided with framework (32), the top of framework (32) is provided with the body of rod (321) and handle (322), the one end of the body of rod (321) is passed the top of framework (32) and is connected with steering gear (33), the bilateral symmetry of steering gear (33) is provided with transfer line (331), two the one end of transfer line (331) all is provided with steering gear two (34), the output of steering gear two (34) all is provided with lead screw one (341), the other end of lead screw one (341) with the inboard bottom bearing of steering gear two (34) is connected, the inner side of the frame body (32) is symmetrically provided with movable grooves (323), the outer side wall of the first screw rod (341) is provided with a threaded sleeve (35), the outer side wall of the threaded sleeve (35) is provided with a connecting rod (351), the connecting rod (351) penetrates through the movable grooves (323) and is connected with a lifting rod (36), and the bottom of the lifting rod (36) is provided with a bottom plate (37).

6. The bent pin internal-extraction injection mold teaching aid of claim 5, wherein: the lateral wall of bracing piece (311) is provided with rotating assembly (4), rotating assembly (4) include bearing housing (41), the one end lateral wall of bracing piece (311) is provided with bearing housing (41), framework (32) with bearing housing (41) are connected through drum (42), the lateral wall of bearing housing (41) is provided with lead screw two (43), the one end of lead screw two (43) is passed the lateral wall of drum (42).

7. The invention of claim 6 wherein the drawing injection mold teaching aid further comprises: the lifting rod (36) is connected with the bottom plate (37) through a bolt.

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