CN219006876U - Connecting rod type circular arc core-pulling die structure - Google Patents

Abstract

The utility model relates to a connecting rod type circular arc core pulling mold structure which comprises a mounting seat and a hydraulic cylinder, wherein a slidable linear position seat is arranged in the mounting seat, the hydraulic cylinder and the linear position seat are connected with a connecting rod through a pin, the other end of the connecting rod is connected with the circular arc position seat through a pin, the circular arc position seat is connected with a circular arc position, the circular arc position seat is also connected with a rotating shaft, the rotating shaft is fixed in a mold, the center of the circular arc position is arranged on the central line of the rotating shaft, a relatively small rotating shaft is arranged on the circular arc center of a product, the circular arc position and the linear position are provided with the connecting rod through the pin, the linear position pulls the circular arc position to perform rotary motion around the rotating shaft to realize circular arc core pulling, the rotation angle of the circular arc position is converted into the stroke of the linear position, the circular arc position is not limited by the rotation angle of the circular arc position, the structure can be suitable for products with larger circular arc lengths, a gear structure is not required, the space of the mold is small, and the manufacturing cost of the mold can be reduced.

Description

Connecting rod type circular arc core-pulling die structure

Technical Field

The utility model relates to the field of dies, in particular to a connecting rod type circular arc core-pulling die structure.

Background

In the injection mold industry, the condition that a product is reversely buckled often occurs, for a reversely buckled structure, a row position is adopted for reversely buckling and demolding, and for the condition that an arc through hole is formed in the inner side of the product, an arc core pulling structure is needed in the mold structure; when the radius of the arc of the product is smaller and the arc length of the arc is larger, a gear type arc core pulling structure is arranged at the center of the arc, and interference between the gear and the product cannot be avoided; the gear type circular arc core pulling device is provided with a gear transmission system, the required die space is larger, and the die manufacturing cost is higher.

Disclosure of Invention

The utility model aims to provide a connecting rod type circular arc core-pulling die structure, wherein a relatively small rotating shaft is arranged on the circular arc center of a product, connecting rods are arranged on circular arc positions and linear positions through pins, the linear positions pull the circular arc positions to rotate around the rotating shaft to realize circular arc core pulling, the rotation angle of the circular arc positions is converted into the stroke of the linear positions, the limitation of the rotation angle of the circular arc positions is avoided, the structure can be applied to products with larger circular arc lengths, a gear structure is not required, the required die space is small, and the die manufacturing cost can be reduced.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a connecting rod formula circular arc mould structure of loosing core, includes mount pad and pneumatic cylinder, the mount pad in be provided with the slidable straight line and move a position seat, pneumatic cylinder and straight line move a position seat, straight line move a position seat and have the connecting rod through pin connection, the other end of connecting rod has the circular arc to move a position seat through pin connection, the circular arc move a position seat and connect the circular arc and move a position, and the circular arc moves a position seat and still be connected with the pivot, the pivot is fixed in the mould, and the center that the circular arc was moved a position is on the central line of pivot.

The rotary shaft which is relatively small is arranged on the arc center of the product, the connecting rod is installed on the arc line position and the straight line position through the pin, the straight line position pulls the arc line position to do rotary motion around the rotary shaft to realize arc core pulling, the rotation angle of the arc line position is converted into the travel of the straight line position, the limitation of the rotation angle of the arc line position is avoided, the structure can be applied to products with larger arc length, a gear structure is not required, the required die space is small, and the die manufacturing cost can be reduced.

Preferably, the linear seat is provided with a T-shaped groove, the push rod of the hydraulic cylinder is connected with a T-shaped block, and the T-shaped block is in clearance fit with the T-shaped groove.

The cooperation design of T shape piece and T shape groove makes things convenient for sharp seat of going to be separated with the pneumatic cylinder, and then makes things convenient for sharp seat of going to go and dismantlement and change.

Preferably, the inner side of the mounting seat is in a ladder shape, the outer side of the linear position seat is in a ladder shape, and the ladder on the inner side of the mounting seat is matched with the ladder on the outer side of the linear position seat.

The mounting seat and the linear slide seat are designed in a stepped manner, so that the linear slide seat can be conveniently taken and placed, and meanwhile, the linear slide seat can slide in the mounting seat without deviation.

Preferably, one end of the T-shaped block matched with the push rod of the hydraulic cylinder is a screw rod and is in threaded sleeve joint with the push rod of the hydraulic cylinder.

The T-shaped block is in threaded sleeve connection with the push rod of the hydraulic cylinder, so that the T-shaped block can be conveniently detached and replaced.

Drawings

Fig. 1 is a schematic perspective view of a connecting rod type circular arc core-pulling mold structure and a product.

Fig. 2 is a schematic perspective view of a connecting rod type circular arc core-pulling mold in a top view.

Fig. 3 is a schematic perspective view of a bottom view of a connecting rod type circular arc core-pulling mold structure.

The text labels shown in the figures are expressed as: 1. a mounting base; 2. a hydraulic cylinder; 3. a linear seat; 4. a T-shaped groove; 5. a T-shaped block; 6. a connecting rod; 7. arc-shaped row seat; 8. arc row position; 9. a rotating shaft; 10. and (5) a product.

Detailed Description

In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.

As shown in fig. 1-3, the connecting rod type circular arc core pulling die structure comprises a mounting seat 1 and a hydraulic cylinder 2, wherein a slidable linear position seat 3 is arranged in the mounting seat 1, the hydraulic cylinder 2 and the linear position seat 3 are connected with a connecting rod 6 through a pin, the other end of the connecting rod 6 is connected with a circular arc position seat 7 through a pin, the circular arc position seat 7 is connected with a circular arc position 8, the circular arc position seat 7 is also connected with a rotating shaft 9, the rotating shaft 9 is fixed in the die, the center of the circular arc line seat 8 is arranged on the center line of the rotating shaft 9, the linear line seat 3 is provided with a T-shaped groove 4, a push rod of the hydraulic cylinder 2 is connected with a T-shaped block 5, the T-shaped block 5 is in clearance fit with the T-shaped groove 4, the inner side of the mounting seat 1 is in a step shape, the outer side of the linear line seat 3 is in a step shape, the step on the inner side of the mounting seat 1 is matched with the step on the outer side of the linear line seat 3, one end of the T-shaped block 5 matched with the push rod of the hydraulic cylinder 2 is a screw rod, and the T-shaped block is in sleeve joint with the push rod thread of the hydraulic cylinder 2.

The specific operation of carrying out product shaping and circular arc through-hole drawing of patterns for accomplishing the product shaping is as follows, fig. 1 is for accomplishing the state that the circular arc through-hole drawing of patterns is not carried out, at this moment, pull back T shape piece 5 through pneumatic cylinder 2, and then drive sharp line seat 3 and walk backward, so can drive connecting rod 6 and remove, and then can make circular arc seat 7 revolve pivot 9 through the mode that changes connecting rod 6 inclination rotate, so can make circular arc position 8 rotate as the center with pivot 9, and then make circular arc position 8 break away from with the circular arc through-hole of product 10, accomplish the drawing of patterns, the connecting rod type circular arc structure of loosing core of this application avoids interfering with the product through suitably reducing and optimizing the pivot, can be applicable to the product that has great arc length, the suitability is more extensive, and realize loosing core through connecting rod transmission power, than gear type circular arc structure is simple of loosing core, save the mould space, reduce the mould cost.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the above examples being provided only to assist in understanding the methods of the present utility model and the core ideas thereof; the foregoing is merely illustrative of the preferred embodiments of this utility model, and it is noted that there is objectively no limit to the specific structure disclosed herein, since numerous modifications, adaptations and variations can be made by those skilled in the art without departing from the principles of the utility model, and the above-described features can be combined in any suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.

Claims (4)

1. The utility model provides a connecting rod type circular arc mould structure of loosing core, includes mount pad (1) and pneumatic cylinder (2), mount pad (1) in be provided with slidable sharp seat (3) of going, its characterized in that, pneumatic cylinder (2) and sharp seat (3) of going, straight line seat (3) have connecting rod (6) through pin connection, the other end of connecting rod (6) has circular arc seat (7) of going through pin connection, circular arc seat (7) of going connect circular arc seat (8) of going, and circular arc seat (7) of going still are connected with pivot (9), pivot (9) are fixed in the mould, and the center of circular arc seat (8) of going is on the central line of pivot (9).

2. The connecting rod type circular arc core pulling mold structure according to claim 1, wherein the linear position seat (3) is provided with a T-shaped groove (4), a push rod of the hydraulic cylinder (2) is connected with a T-shaped block (5), and the T-shaped block (5) is in clearance fit with the T-shaped groove (4).

3. The connecting rod type circular arc core pulling mold structure according to claim 2, wherein the inner side of the installation seat (1) is in a step shape, the outer side of the straight line position seat (3) is in a step shape, and the step on the inner side of the installation seat (1) is matched with the step on the outer side of the straight line position seat (3).

4. The connecting rod type circular arc core-pulling mold structure according to claim 3, wherein one end of the T-shaped block (5) matched with the push rod of the hydraulic cylinder (2) is a screw rod, and the T-shaped block is in threaded sleeve joint with the push rod of the hydraulic cylinder (2).

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