CN215661511U - Integrated lateral forming hole assembly and injection mold - Google Patents

Abstract

The utility model discloses an integrated lateral forming hole assembly and an injection mold in the technical field of injection molds. The device is used for the integrated design of parts for injection molding of the lateral molding holes of the plastic products, the interchangeability of the device is increased, the dismounting positions are fewer, the labor, material and time costs during maintenance or dismounting are reduced, and the matching precision among the parts can be effectively ensured in long-term molding operation.

Description

Integrated lateral forming hole assembly and injection mold

Technical Field

The utility model relates to an integrated lateral forming hole assembly and an injection mold, and belongs to the technical field of injection molds.

Background

Side edge hole structures often appear on injection molded products;

when side holes are formed, main parts used for forming on a traditional injection mold comprise an inclined guide post and a shovel pin which are arranged in an upper mold, and a slide block seat, a slide block insert pin, a spring and the like which are arranged in a lower mold, but the main parts are dispersedly arranged on the upper mold and the lower mold, so that the integration level is low, a template required for installing all formed parts is large, standardization is difficult to realize, and the interchangeability is poor;

meanwhile, each part needs to be connected and fixed with the upper die or the lower die through a screw or a pressing block, so that a plurality of mounting holes need to be processed on the upper die and the lower die, and the relative position precision among the mounting holes needs to be ensured, thereby increasing the processing cost;

and because the parts are arranged between the upper die and the lower die, the 'die closing-die opening' action is continuously executed between the upper die and the lower die in the long-term forming operation process, and the parts which are positioned between the upper die and the lower die and need to be matched with each other bear larger alternating impact load in the process, so that the speed of reducing the matching precision is accelerated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide an integrated lateral forming hole assembly and an injection mold.

In order to achieve the purpose, the utility model is realized by adopting the following technical scheme:

on one hand, the integrated lateral forming hole assembly comprises a transmission reversing mechanism, a forming mechanism and a fixed seat, wherein the forming mechanism is in transmission connection with the transmission reversing mechanism arranged in the fixed seat;

the transmission reversing mechanism receives external driving force, reverses the driving force and then transmits the driving force to the forming mechanism so as to drive the forming mechanism to act.

Furthermore, the fixing seat is provided with a blind hole for the transmission reversing mechanism to move and a through hole penetrating through the side wall of the blind hole for the forming mechanism to move, and the forming mechanism is in transmission connection with the transmission reversing mechanism through the through hole.

Furthermore, the transmission reversing mechanism comprises a wedge block and a sliding block which are in sliding fit with the blind hole, the wedge block is matched with a sliding block wedge, and the sliding block drives the wedge block to move along the bottom surface of the blind hole through a wedge structure.

Furthermore, the forming mechanism comprises a forming insert and a reset device arranged on the forming insert, one end of the forming insert is abutted against the transmission reversing mechanism and receives the driving force of the transmission reversing mechanism to move, and the reset device drives the forming insert to reset after the movement is finished.

Furthermore, the bottom surface of the blind hole is an inclined surface and is in inclined surface sliding fit with the wedge block.

Furthermore, a pressing plate covers the blind hole, and a through hole for the sliding block to come in and go out is formed in the pressing plate.

Furthermore, an annular step is arranged on the sliding block, and when the sliding block moves to the stroke limit value, the step is abutted to the pressing plate.

In another aspect, an injection mold having an integrated lateral forming orifice assembly as described in any of the above.

Compared with the prior art, the utility model has the following beneficial effects:

1. the device integrates and designs parts for injection molding of the lateral molding holes of the plastic products, reduces the use space of the template, is easy to realize standardization, and improves the interchangeability of the device;

2. the use of bolts and pressing plates is reduced, more mounting holes do not need to be processed on the upper die and the lower die, and the processing cost is reduced;

3. the device is integrated to be set up and install in a template in side direction shaping hole injection moulding's spare part is unified, and the influence that great impact load need the spare part cooperation precision of mutually supporting between to the template when can effectively reduce the mould that opens and shuts can effectively guarantee to have higher cooperation precision between spare part in long-term shaping operation.

Drawings

FIG. 1 is a cross-sectional view of an integrated side forming orifice assembly provided in accordance with example 1 of the present invention;

FIG. 2 is a perspective view of an integrated lateral forming orifice assembly provided in accordance with example 1 of the present invention;

FIG. 3 is a partial sectional view of a side hole formed in an injection mold according to embodiment 2 of the present invention;

reference numerals: 100. a transmission reversing mechanism; 110. a slider; 111. a step; 120. a wedge block; 200. a molding mechanism; 210. molding the insert; 220. a resetting device; 300. a fixed seat; 301. blind holes; 302. a through hole; 310. pressing a plate; 311. and (6) a via hole.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1:

an integrated lateral forming hole assembly provided in embodiment 1 of the present invention is shown in fig. 1, fig. 2, and fig. 3, and includes a transmission reversing mechanism 100, a forming mechanism 200, and a fixing base 300, where the transmission reversing mechanism 100 is in transmission connection with the forming mechanism 200, the transmission reversing mechanism 100 bears an external driving force, and transmits the driving force to the forming mechanism 200 after reversing, the forming mechanism 200 bears the motion of the transmission reversing mechanism 100 and performs an action, the transmission reversing mechanism 100 is disposed in the fixing base 300, and is uniformly and fixedly connected with an external structure through the fixing base 300, so as to reduce the number of mounting and dismounting positions, improve the integration level of the apparatus, and simultaneously, in long-time operation, maintain high matching precision between the parts of the apparatus.

As shown in fig. 1 and 3, a blind hole 301 is formed in one surface of the fixing seat 300, the bottom surface of the blind hole 301 is an inclined surface, the transmission reversing mechanism 100 is slidably disposed in the blind hole 301, the transmission reversing mechanism 100 includes a wedge 120 and a slider 110, both ends of the wedge 120 in the length direction are inclined surfaces, and the two inclined surfaces are in a shape of a Chinese character 'ba', material removal and cutting are performed along the thickness direction of the wedge 120, because the thickness of the existing plastic product is usually 1.5-3.5mm, the thickness of the cut material is 4mm under the condition of keeping the allowance, and for the working stroke of the forming mechanism 200, one end of the slider 110 in the length direction is an inclined surface, and the other end is circularly cut to form a step 111.

The first inclined surface of the wedge 120 is in sliding fit with the bottom inclined surface of the blind hole 301, and the second inclined surface of the wedge 120 is in sliding fit with the inclined surface of the slider 110.

As shown in fig. 1 and 3, a through hole 302 for the movement of the forming mechanism 200 is disposed on a side wall of the bottom end of the blind hole 301 opposite to the bottom inclined plane, the forming mechanism 200 includes a forming insert 210 and a reset device 220, the forming insert 210 is a slider insert pin, the reset device 220 is a reset spring, the slider insert pin moves in the through hole 302, and the head portion abuts against the wedge block 120, the pin body extends out of the through hole 302 and extends into the external structure connected to the fixing base 300, the reset spring is sleeved on the pin body of the slider insert pin, one end of the reset spring abuts against the head portion of the slider insert pin, and the other end of the reset spring abuts against the external structure connected to the fixing base 300.

The sliding block 110 slides in the blind hole 301 after receiving external driving force, the sliding block 110 is in sliding fit with the wedge block 120 through the inclined surface, the wedge block 120 is forced to move along the bottom surface of the blind hole 301, the movement is reversed in the process, and meanwhile, the sliding block insert pin is pushed to perform operation.

After the operation is finished, the pressure on the sliding block 110 is removed from the outside, the return spring relaxes and releases the pressure, the sliding block insert pin is pushed back to the original position, the head of the sliding block insert pin props against the wedge block 120 and drives the wedge block 120 to reset in the resetting process of the sliding block insert pin, and the wedge block 120 forces the sliding block 110 to move upwards and reset in the resetting process due to the sliding fit of the inclined plane between the wedge block 120 and the sliding block 110.

The contact surface of the wedge block 120 and the bottom of the blind hole 301 is an inclined surface, so that the contact pressure between the wedge block 120 and the bottom surface of the blind hole 301 is reduced, the friction force between the wedge block 120 and the bottom surface of the blind hole 301 is reduced, and the movement efficiency of the wedge block 120 relative to the bottom surface of the blind hole 301 is improved.

As shown in fig. 1 and 3, a pressing plate 310 is fixedly connected to one side of the fixing base 300, which is provided with the blind hole 301, through bolts, a through hole 311 for the slider 110 to go in and out is formed in the pressing plate 310, and the through hole 311 cooperates with the step 111 to limit the stroke of the slider 110 and limit the height of the slider 110 extending out of the pressing plate 310.

Example 2:

an injection mold provided in embodiment 2 of the present invention includes the integrated lateral forming hole assembly described in embodiment 1, as shown in fig. 3, the fixing seat 300 is fixedly connected to a lower mold plate of the injection mold through a bolt, a penetration hole for a slider insert to slide through is formed in the mold plate, a cavity for accommodating a return spring is formed in one end of the penetration hole, one end of the return spring abuts against a head of the slider insert, and the other end abuts against a bottom surface of the cavity.

When the mold is closed, the slide block 110 receives the driving force of the upper mold and transmits the driving force to the forming mechanism 200 through the transmission reversing mechanism 100, the insert pin of the slide block enters the injection mold from the penetrating hole and extends into the mold cavity, and after the mold is closed, the injection mold starts injection molding operation.

After the injection molding operation is completed, the mold opening operation is performed, the upper mold removes the driving force on the sliding block 110, the return spring drives the sliding block insert pin to return, the sliding block insert pin is withdrawn from the injection molding piece, the side hole is formed, and meanwhile, the sliding block insert pin drives the sliding block 110 and the wedge block 120 to return.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. An integrated lateral forming orifice assembly, comprising: the forming machine comprises a transmission reversing mechanism (100), a forming mechanism (200) and a fixed seat (300), wherein the forming mechanism (200) is in transmission connection with the transmission reversing mechanism (100) arranged in the fixed seat (300);

the transmission reversing mechanism (100) receives external driving force, reverses the driving force and then transmits the driving force to the forming mechanism (200) so as to drive the forming mechanism (200) to act.

2. An integrated lateral shaping orifice assembly as set forth in claim 1 in which: the forming machine is characterized in that the fixed seat (300) is provided with a blind hole (301) for the transmission reversing mechanism (100) to move and a through hole (302) penetrating through the side wall of the blind hole (301) for the forming mechanism (200) to move, and the forming mechanism (200) is in transmission connection with the transmission reversing mechanism (100) through the through hole (302).

3. An integrated lateral shaping orifice assembly as set forth in claim 2 in which: the transmission reversing mechanism (100) comprises a wedge block (120) and a sliding block (110) which are in sliding fit with the blind hole (301), the wedge block (120) is in wedge fit with the sliding block (110), and the sliding block (110) drives the wedge block (120) to move along the bottom surface of the blind hole (301) through a wedge structure.

4. An integrated lateral shaping orifice assembly as set forth in claim 1 in which: the forming mechanism (200) comprises a forming insert (210) and a reset device (220) arranged on the forming insert (210), one end of the forming insert (210) is abutted against the transmission reversing mechanism (100), the driving force of the transmission reversing mechanism (100) is received for movement, and the reset device (220) drives the forming insert (210) to reset after the movement is completed.

5. An integrated lateral shaping orifice assembly as set forth in claim 3 in which: the bottom surface of the blind hole (301) is an inclined surface and is in inclined surface sliding fit with the wedge block (120).

6. An integrated lateral shaping orifice assembly as set forth in claim 3 in which: the blind hole (301) is covered with a pressing plate (310), and the pressing plate (310) is provided with a through hole (311) for the sliding block (110) to go in and out.

7. An integrated lateral shaping orifice assembly according to claim 6 in which: the sliding block (110) is provided with an annular step (111), and when the sliding block (110) moves to a stroke limit value, the step (111) is abutted to the pressing plate (310).

8. An injection mold, its characterized in that: the injection mold has an integrated lateral forming orifice assembly as set forth in any one of claims 1-7.

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