CN213382762U

CN213382762U - Injection mold of injection molding part with side hole

Info

Publication number: CN213382762U
Application number: CN202021896515.1U
Authority: CN
Inventors: 南基学
Original assignee: Yejia Optical Technology Guangdong Corp
Current assignee: Yejia Optical Technology Guangdong Corp
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-06-08
Anticipated expiration: 2030-09-03

Abstract

The utility model provides a take injection mold of side opening injection molding, including last mould, lower mould, it includes bedplate, upper padding plate, top board to go up the mould, the lower mould includes bedplate, first backup pad, second backup pad, lower bolster, mould benevolence down, be equipped with the die cavity in the mould benevolence, die cavity one side is equipped with side opening shaping subassembly, side opening shaping subassembly includes slider, oblique guide block, supplementary shaping piece, side opening shaping piece, first spring, form a cavity between first backup pad, the second backup pad, be equipped with drawing of patterns subassembly in the cavity, drawing of patterns subassembly includes the push pedal, looses core, push rod to one side, the push rod with the interval has between the push pedal. The utility model discloses an injection mold is applicable to the preparation and takes the injection molding of side opening, has set up side opening shaping subassembly and drawing of patterns subassembly, and the structure is ingenious, need not to use cylinder drive slider, utilizes to loose core drive slider just can make to take the side opening injection molding to demold smoothly to one side, and the drawing of patterns is efficient.

Description

Injection mold of injection molding part with side hole

Technical Field

The utility model relates to a technical field of moulding plastics, concretely relates to take injection mold of side opening injection molding.

Background

The injection molding product is a common daily product, and is widely applied to the fields of household products, medical equipment, building materials, sports equipment and the like due to the advantages of light weight, high strength, good durability, strong assembly and the like. In the manufacturing process of injection molding products, plastic materials in a molten state are generally uniformly stirred by a screw extruder at a certain temperature, then injected into an injection mold, molded in a cavity of the injection mold, cooled and solidified to obtain a molded injection molding product, and then the injection molding product is pushed down from the injection mold by an ejector pin.

For producing the injection molding part 9 with the side holes as shown in fig. 3, because one side of the injection molding part 9 with the side holes is provided with two side holes, in order to facilitate demolding, a common means is to firstly use a conventional injection mold to manufacture the injection molding part without the side holes, and then manufacture the side holes by a subsequent drilling process, so that the production efficiency of the means is extremely low.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides an injection mold of taking side opening injection molding is applicable to the preparation and takes the injection molding of side opening, has set up side opening shaping subassembly and drawing of patterns subassembly, and the structure is ingenious, need not to use cylinder drive slider, utilizes to loose core drive slider to one side just to make and takes the side opening injection molding to demold smoothly, and the drawing of patterns is efficient.

In order to achieve the above object, the present invention provides the following technical solutions:

an injection mold of an injection molding part with side holes comprises an upper mold and a lower mold, wherein the upper mold comprises an upper seat plate, an upper padding plate and an upper pressing plate which are sequentially arranged from top to bottom, an injection runner is further arranged in the upper mold, the lower mold comprises a lower seat plate, a first supporting plate and a second supporting plate which are fixed on two sides of the upper end of the lower seat plate, a lower padding plate which is fixed on the upper ends of the first supporting plate and the second supporting plate, and a mold core which is fixed in the middle of the upper end of the lower padding plate, a mold cavity is arranged in the mold core, the lower end of the injection runner is communicated with the mold cavity, a side hole forming component is arranged on one side of the mold cavity, the side hole forming component comprises a slide block, an inclined guide block which is connected to the front end of the slide block and has inclined planes at two ends, auxiliary forming blocks which are positioned on two sides of the, the auxiliary forming block is close to one side of the oblique guide block is an inclined plane, two the auxiliary forming block and one end of the oblique guide block extends to the inner side of the cavity, a cavity is formed between the first supporting plate and the second supporting plate, a demoulding assembly is arranged in the cavity, the demoulding assembly comprises a push plate, a fixed core pulling part and a push rod, the upper side of the push plate is obliquely pulled to core, the push rod is located on the upper side of the push plate, an oblique guide hole matched with the oblique core pulling part is formed in the slide block, the upper end of the push rod is located at the bottom of the cavity, and a distance is reserved between.

Specifically, the lower backing plate is provided with an avoiding groove for the inclined core pulling movement.

Specifically, the lower backing plate is provided with a sliding groove for the sliding block to slide.

Specifically, the push rod comprises an upper limit part, a rod part connected to the lower end of the upper limit part, and a lower limit part connected to the lower end of the rod part, wherein a second spring is further sleeved on the outer side of the rod part and is located between the lower cushion plate and the lower limit part.

Specifically, still be equipped with the guide post in the cavity, be equipped with the confession on the push pedal the guiding hole of guide post activity.

Specifically, the upper end of the injection molding runner is provided with an injection molding opening.

The utility model has the advantages that:

the utility model discloses an injection mold, be applicable to the preparation and take the injection molding of side opening, side opening shaping subassembly and drawing of patterns subassembly have been set up, when the push pedal bulldozes, utilize the cooperation of loosing core and slider to one side earlier, make oblique guide block take out to the outside, thereby two supplementary shaping pieces slide in opposite directions under the effect of first spring, take side opening shaping piece out from the side opening of injection molding, the push pedal promotes the push rod at last, it is ejecting with the injection molding in the die cavity, the structure is ingenious, need not to use cylinder drive slider, utilize the drive slider of loosing core to one side just can make and take the side opening injection molding to demold smoothly, the drawing of patterns is efficient.

Drawings

FIG. 1 is the utility model discloses a take section structure chart of injection mold of side opening injection molding.

Fig. 2 is the utility model discloses a take injection mold's of side opening injection molding solid structure chart.

FIG. 3 is a schematic view of a side hole injection molded part.

The reference signs are: the injection molding device comprises an upper die 1, an upper seat plate 11, an upper cushion plate 12, an upper pressure plate 13, a lower die 2, a lower seat plate 21, a first support plate 22, a second support plate 23, a lower cushion plate 24, an avoiding groove 241, a sliding groove 242, a die core 25, a die cavity 251, an injection flow channel 3, an injection port 31, a side hole molding component 4, a sliding block 41, an inclined guide hole 411, an inclined guide block 42, an auxiliary molding block 43, a side hole molding block 44, a first spring 45, a cavity 5, a demolding component 6, a push plate 61, an inclined core pulling 62, a push rod 63, an upper limit part 631, a rod part 632, a lower limit part 633, a second spring 7, a guide column 8 and an injection molding part 9.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

As shown in fig. 1-3:

an injection mold of an injection molding part with side holes comprises an upper mold 1 and a lower mold 2, wherein the upper mold 1 comprises an upper seat plate 11, an upper padding plate 12 and an upper pressing plate 13 which are sequentially arranged from top to bottom, an injection runner 3 is also arranged in the upper mold 1, the lower mold 2 comprises a lower seat plate 21, a first supporting plate 22 and a second supporting plate 23 which are fixed on two sides of the upper end of the lower seat plate 21, a lower padding plate 24 which is fixed on the upper end of the first supporting plate 22 and the second supporting plate 23, a mold core 25 which is fixed in the middle of the upper end of the lower padding plate 24, a mold cavity 251 is arranged in the mold core 25, the lower end of the injection runner 3 is communicated with the mold cavity 251, a side hole molding assembly 4 is arranged on one side of the mold cavity 251, the side hole molding assembly 4 comprises a sliding block 41, an inclined guide block 42 which is connected to the front end of the sliding block 41 and has, the side hole shaping block 44 is located the die cavity 251 inboard, a supplementary shaping block 43 is the inclined plane by leaning on oblique guide block 42 one side, two supplementary shaping blocks 43 and oblique guide block 42 one end extend to the die cavity 251 inboard, first backup pad 22, form a cavity 5 between the second backup pad 23, be equipped with drawing of patterns subassembly 6 in the cavity 5, drawing of patterns subassembly 6 includes push pedal 61, fix the oblique core 62 of loosing of push pedal 61 upside, be located the push rod 63 of push pedal 61 upside, be equipped with on the slider 41 with the oblique guide hole 411 of loosing core 62 matched with to one side, the push rod 63 upper end is located the die cavity 251 bottom, the interval has between push rod 63 and the push pedal 61.

Preferably, since the inclined core 62 has an inclined structure, in order to ensure that the inclined core 62 can move up smoothly, the lower backing plate 24 is provided with an avoiding groove 241 for the inclined core 62 to move.

Preferably, the lower pad 24 is provided with a sliding groove 242 for the sliding of the sliding block 41, and in order to prevent the sliding block 41 from separating from the sliding groove 242, a protrusion is additionally provided on both sides of the sliding block 41, and an inner groove for the sliding of the protrusion is additionally provided on both sides of the sliding groove 242.

Preferably, the push rod 63 includes an upper limit portion 631, a rod portion 632 connected to a lower end of the upper limit portion 631, and a lower limit portion 633 connected to a lower end of the rod portion 632, and in order to provide the push rod 63 with an automatic downward return function, the second spring 7 is further sleeved outside the rod portion 632, and the second spring 7 is located between the lower pad plate 24 and the lower limit portion 633.

Preferably, in order to improve the stability of the push plate 61 moving along the vertical direction, a guide post 8 is further arranged in the cavity 5, and a guide hole for the guide post 8 to move is formed in the push plate 61.

Preferably, the injection runner 3 is provided with an injection port 31 at the upper end.

The demolding process is as follows:

after the upper die 1 and the lower die 2 are assembled and injection molded by an injection molding machine, cooling and obtaining an injection molding part 9 with a side hole in a cavity 251; after the upper die 1 and the lower die 2 are opened, in a first stage, a driving device at the lower end of the push plate 61 is used for pushing the push plate 61 and the inclined core pulling 62 to move upwards, and in the process of moving the inclined core pulling 62 upwards, due to the matching effect of the inclined core pulling 62 and the inclined guide hole 411, the push slide block 41 and the inclined guide block 42 move outwards along the sliding groove 242, so that the inclined guide block 42 is gradually pulled out from between the two auxiliary forming blocks 43, and meanwhile, under the elastic action of the two first springs 45, the two auxiliary forming blocks 43 are mutually closed, and the two side hole forming blocks 44 are pulled out from the two side holes of the injection molding part 9 with the side holes; in the second stage, the push plate 61 continues to move upwards, and the push rod 63 is pushed to move upwards in the process of moving the push plate 61 upwards, so that the push rod 63 pushes out the injection molded part 9 with the side hole in the cavity 251, and the demolding procedure is completed.

The above embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The injection mold for the injection molding part with the side holes comprises an upper mold (1) and a lower mold (2), wherein the upper mold (1) comprises an upper seat plate (11), an upper base plate (12) and an upper pressing plate (13) which are sequentially arranged from top to bottom, an injection flow channel (3) is further arranged in the upper mold (1), the lower mold (2) comprises a lower seat plate (21), a first supporting plate (22) and a second supporting plate (23) which are fixed on two sides of the upper end of the lower seat plate (21), a lower base plate (24) which is fixed on the upper ends of the first supporting plate (22) and the second supporting plate (23), and a mold core (25) which is fixed in the middle of the upper end of the lower base plate (24), a mold cavity (251) is arranged in the mold core (25), the lower end of the injection flow channel (3) is communicated with the mold cavity (251), side opening shaping subassembly (4) include slider (41), connect slider (41) front end and both ends have oblique guide block (42) on inclined plane, be located supplementary shaping piece (43), the connection of guide block (42) both sides to one side hole shaping piece (44), first spring (45) of supplementary shaping piece (43) one end, side hole shaping piece (44) are located die cavity (251) are inboard, supplementary shaping piece (43) lean on to one side of guide block (42) is the inclined plane, two supplementary shaping piece (43) and oblique guide block (42) one end extends to die cavity (251) are inboard, form a cavity (5) between first backup pad (22), second backup pad (23), be equipped with drawing of patterns subassembly (6) in cavity (5), drawing of patterns subassembly (6) include push pedal (61), fix oblique (62) of loosing core (61) upside push pedal (61), The push rod (63) is located on the upper side of the push plate (61), an inclined guide hole (411) matched with the inclined core pulling (62) is formed in the sliding block (41), the upper end of the push rod (63) is located at the bottom of the cavity (251), and a space is reserved between the push rod (63) and the push plate (61).

2. The injection mold of the injection molding part with the side hole according to claim 1, wherein the lower backing plate (24) is provided with an avoiding groove (241) for the inclined core pulling (62) to move.

3. The injection mold of the injection molding part with the side hole according to claim 1, wherein the lower backing plate (24) is provided with a sliding groove (242) for the sliding block (41) to slide.

4. The injection mold of the injection molding part with the side hole, according to the claim 1, is characterized in that the push rod (63) comprises an upper limit part (631), a rod part (632) connected to the lower end of the upper limit part (631), and a lower limit part (633) connected to the lower end of the rod part (632), the rod part (632) is further sleeved with a second spring (7), and the second spring (7) is located between the lower backing plate (24) and the lower limit part (633).

5. The injection mold of the injection molding part with the side hole according to claim 1, wherein a guide post (8) is further arranged in the cavity (5), and a guide hole for moving the guide post (8) is formed in the push plate (61).

6. The injection mold of the injection molding part with the side hole according to the claim 1, characterized in that the injection runner (3) is provided with an injection port (31) at the upper end.