CN221660066U - A thin-walled part blister forming mold - Google Patents

Abstract

The utility model discloses a thin-wall piece plastic-sucking forming die, and relates to the field of plastic-sucking forming dies. The plastic sucking forming die for the thin-wall part comprises a processing platform, wherein a driving mechanism is fixedly connected to the upper surface of the upper die, a fixing frame is fixedly connected to the lower surface of the upper die, four limiting assemblies are arranged on the lower surface of the upper die, and the limiting assemblies are used for controlling the extrusion seat to be in contact with raw materials of the thin-wall part. This thin-wall part plastic uptake forming die, when last mould downwardly moving for four extrusion seats extrude the thin-wall part raw materials at the surface of bed die, carry out preliminary fixed to the thin-wall part raw materials, under the removal of last mould, spacing seat removes the inside thin-wall part raw materials extrusion of bed die, laminates mutually with the inner wall of bed die, accomplishes the prescribing a limit to the thin-wall part raw materials, avoids the thin-wall part raw materials at edge to get into in the bed die at plastic uptake in-process, makes the inhomogeneous condition of thickness can not appear at shaping thin-wall part edge.

Description

A thin-walled part blister forming mold

Technical Field

The utility model relates to the technical field of plastic suction molding moulds, in particular to a thin-walled plastic suction molding mould.

Background Art

Blister forming refers to the use of a blister forming machine to absorb the heated and softened plastic sheet onto the surface of a mold. After cooling, a concave and convex shape of plastic is formed. The blister forming mold is the mold used for shaping during the blister forming process.

At present, during the blister forming process, a plastic hard sheet is placed directly on the mold, and the plastic hard sheet is clamped and fixed by clamps at both ends. After heating and softening, blister forming is performed to make the plastic hard sheet fit the mold.

However, during the blister forming process, the softened plastic sheet will be deformed and the raw material at the edge will be pulled into the mold, making the thin-walled parts formed at the edge of the molding mold prone to uneven thickness, affecting product quality.

Utility Model Content

1. Technical issues to be solved

In view of the deficiencies in the prior art, the utility model provides a thin-walled part vacuum forming mold, which solves the problem that the plastic hard sheet is deformed and the raw material at the edge is pulled into the mold, making the thin-walled parts formed at the edge of the molding mold prone to uneven thickness.

(II) Technical solution

To achieve the above objectives, the utility model is implemented through the following technical solutions: a thin-walled part vacuum forming mold, including a processing platform, a lower mold is installed inside the processing platform, four guide rods are fixedly connected to the upper surface of the processing platform, the outer surfaces of the four guide rods are slidably connected to the upper mold, the upper surface of the upper mold is fixedly connected to a driving mechanism, the lower surface of the upper mold is fixedly connected to a fixed frame, four limit assemblies are arranged on the lower surface of the upper mold, the limit assemblies include an extrusion seat, the extrusion seat is slidably connected to the inner wall of the fixed frame, and the limit assemblies are used to control the contact between the extrusion seat and the thin-walled part raw material.

Preferably, the lower surface of the upper mold is fixedly connected to a limiting seat, and the limiting seat and the fixed frame are located directly above the lower mold.

Preferably, four groups of sliding grooves are provided on the inner wall of the fixed frame, and the extrusion seat is slidably connected to the inner wall of the fixed frame through the four sliding grooves.

Preferably, one end of the extrusion seat close to the fixed frame is fixedly connected to a plurality of springs, and the other ends of the plurality of springs are fixedly connected to a pushing seat.

Preferably, the pushing seat is slidably connected in a sliding groove of the fixing frame.

Preferably, two movable seats are fixedly connected to the outer surface of the pushing seat, and the movable seats are slidably connected to the inner wall of the fixed frame.

Preferably, a contact seat is provided directly below the pushing seat, and four of the contact seats are fixedly connected to the upper surface of the processing platform.

The utility model discloses a thin-walled part blister forming mold, which has the following beneficial effects: when the upper mold moves downward, the four extrusion seats extrude the thin-walled part raw material on the outer surface of the lower mold, and the thin-walled part raw material is initially fixed. Under the movement of the upper mold, the limit seat moves to extrude the thin-walled part raw material inside the lower mold, and fits with the inner wall of the lower mold, so as to complete the limitation of the thin-walled part raw material, and prevent the thin-walled part raw material at the edge from entering the lower mold during the blister forming process, so that the edge of the molded thin-walled part will not have uneven thickness. When the upper mold moves, the moving seat moves downward and contacts the contact seat, so that the inclined surface of the moving seat contacts the contact seat, pushing the moving seat to slide in the fixed frame, pushing the pushing seat to move, and further compressing the spring, so that the extrusion seat stably extrude the raw material sheet on the outer surface of the lower mold.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

Fig. 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a schematic diagram of the lower mold structure of the utility model;

FIG3 is an enlarged view of part of the structure in FIG2 of the present utility model;

FIG. 4 is a schematic diagram of the structure of the fixing frame of the utility model.

In the figure: 1, processing platform; 101, guide rod; 2, lower mold; 3, upper mold; 301, limit seat; 4, fixed frame; 401, extrusion seat; 402, spring; 403, push seat; 404, moving seat; 5, contact seat.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

The embodiment of the present application provides a thin-walled part vacuum forming mold to solve the problem that the plastic hard sheet is deformed and the raw material at the edge is pulled into the mold, making the thin-walled part formed at the edge of the forming mold prone to uneven thickness. When the upper mold 3 moves downward, the four extrusion seats 401 squeeze the thin-walled part raw material on the outer surface of the lower mold 2 to preliminarily fix the thin-walled part raw material. When the upper mold 3 moves, the limit seat 301 moves to squeeze the thin-walled part raw material inside the lower mold 2 to fit with the inner wall of the lower mold 2, thereby completing the limitation of the thin-walled part raw material and preventing the thin-walled part raw material at the edge from entering the lower mold 2 during the vacuum forming process, so that the edge of the formed thin-walled part will not have uneven thickness.

In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

The utility model embodiment discloses a thin-walled part vacuum forming mold.

As shown in Figures 1-4, a processing platform 1 is included, a lower mold 2 is installed inside the processing platform 1, four guide rods 101 are fixedly connected to the upper surface of the processing platform 1, and an upper mold 3 is slidably connected to the outer surfaces of the four guide rods 101. Under the action of the guide rods 101, the movement path of the upper mold 3 to the processing platform 1 is relatively stable, a driving mechanism is fixedly connected to the upper surface of the upper mold 3, and a fixed frame 4 is fixedly connected to the lower surface of the upper mold 3. Under the action of the driving mechanism, the upper mold 3 is pushed to move;

Four limit assemblies are arranged on the lower surface of the upper mold 3, and the limit assemblies include an extrusion seat 401, which is slidably connected to the inner wall of the fixed frame 4. The limit assemblies are used to control the contact between the extrusion seat 401 and the thin-walled raw material. When the upper mold 3 moves downward, the four extrusion seats 401 extrude the thin-walled raw material onto the outer surface of the lower mold 2, thereby preliminarily fixing the thin-walled raw material.

The lower surface of the upper mold 3 is fixedly connected to the limiting seat 301, and the limiting seat 301 and the fixed frame 4 are located directly above the lower mold 2. At the same time, as the upper mold 3 moves, the limiting seat 301 moves to squeeze the thin-walled material inside the lower mold 2 and fit it with the inner wall of the lower mold 2, thereby limiting the thin-walled material and preventing the thin-walled material at the edge from entering the lower mold 2 during the vacuum forming process, so that the edge of the molded thin-walled part will not have uneven thickness.

Four sets of slide grooves are provided on the inner wall of the fixed frame 4, and the extrusion seat 401 is slidably connected to the inner wall of the fixed frame 4 through the four slide grooves. When the upper mold 3 moves downward, the oblique edge of the extrusion seat 401 first contacts and extrude the raw material sheet.

One end of the extrusion seat 401 close to the fixed frame 4 is fixedly connected to a plurality of springs 402, and the other end of the plurality of springs 402 is fixedly connected to a pushing seat 403. At this time, the extrusion seat 401 slides on the inner wall of the fixed frame 4 to compress the springs 402 until the inclined surface of the extrusion seat 401 is no longer in contact with the raw material sheet. At this time, the extrusion seat 401 squeezes the raw material sheet onto the outer surface of the lower mold 2 under the rebound of the springs 402.

The push seat 403 is slidably connected in the slide groove of the fixed frame 4. Two moving seats 404 are fixedly connected to the outer surface of the push seat 403. The moving seats 404 are slidably connected to the inner wall of the fixed frame 4. A contact seat 5 is arranged directly below the push seat 403. The four contact seats 5 are fixedly connected to the upper surface of the processing platform 1.

At the same time, when the upper mold 3 moves, the moving seat 404 moves downward and contacts the contact seat 5, so that the inclined surface of the moving seat 404 contacts the contact seat 5, pushing the moving seat 404 to slide in the fixed frame 4, pushing the pushing seat 403 to move, further compressing the spring 402, so that the extrusion seat 401 stably extrudes the raw material sheet on the outer surface of the lower mold 2;

At the same time, the movement of the upper mold 3 causes the limit seat 301 to move, and the limit seat 301 contacts and squeezes the upper surface of the raw material sheet, squeezing the raw material sheet onto the inner wall of the lower mold 2. At this time, the raw material sheet is fixed and can be vacuum-formed, so that the raw material sheet is attached to the inner wall of the lower mold 2 for forming. The above-mentioned reverse movement is performed, so that the upper mold 3 moves upward and separates from the lower mold 2, and the formed thin-walled part can be taken out.

Working principle: When thin-walled parts need to be processed, the upper mold 3 is first pushed to move under the action of the driving mechanism, so that the four extrusion seats 401 squeeze the thin-walled parts raw materials onto the outer surface of the lower mold 2 to preliminarily fix the thin-walled parts raw materials;

When the upper mold 3 moves downward, the inclined edge of the extrusion seat 401 first contacts and squeezes the raw material sheet. At this time, the extrusion seat 401 slides on the inner wall of the fixed frame 4 to compress the spring 402 until the inclined surface of the extrusion seat 401 is no longer in contact with the raw material sheet.

When the upper mold 3 moves, the moving seat 404 moves downward and contacts the contact seat 5, so that the inclined surface of the moving seat 404 contacts the contact seat 5, pushing the moving seat 404 to slide in the fixed frame 4, pushing the pushing seat 403 to move, further compressing the spring 402, so that the pressing seat 401 can stably press the raw material sheet onto the outer surface of the lower mold 2;

At the same time, the movement of the upper mold 3 causes the limit seat 301 to move, and the limit seat 301 contacts and squeezes the upper surface of the raw material sheet, squeezing the raw material sheet onto the inner wall of the lower mold 2. At this time, the raw material sheet is fixed and can be vacuum-formed, so that the raw material sheet is attached to the inner wall of the lower mold 2 for forming. The above-mentioned reverse movement is performed, so that the upper mold 3 moves upward and separates from the lower mold 2, and the formed thin-walled part can be taken out.

The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims (7)

1. The utility model provides a thin-walled workpiece plastic uptake forming die, includes processing platform (1), the internally mounted of processing platform (1) has bed die (2), the last fixed surface of processing platform (1) is connected with four guide bars (101), four the surface sliding connection of guide bar (101) has last mould (3), the last fixed surface of last mould (3) is connected with actuating mechanism, the lower fixed surface of last mould (3) is connected with fixed frame (4), its characterized in that: the lower surface of the upper die (3) is provided with four limiting assemblies, each limiting assembly comprises an extrusion seat (401), each extrusion seat (401) is connected to the inner wall of the fixed frame (4) in a sliding mode, and each limiting assembly is used for controlling the extrusion seat (401) to be in contact with the thin-wall piece raw materials.

2. The thin-walled workpiece suction molding die as set forth in claim 1, wherein: the lower surface of the upper die (3) is fixedly connected with a limiting seat (301), and the limiting seat (301) and the fixed frame (4) are positioned right above the lower die (2).

3. The thin-walled workpiece suction molding die as set forth in claim 2, wherein: four groups of sliding grooves are formed in the inner wall of the fixed frame (4), and the extrusion seat (401) is connected to the inner wall of the fixed frame (4) in a sliding mode through the four sliding grooves.

4. A thin-walled workpiece suction molding die according to claim 3, wherein: one end of the extrusion seat (401) close to the fixed frame (4) is fixedly connected with a plurality of springs (402), and the other end of the springs (402) is fixedly connected with a pushing seat (403).

5. The thin-walled workpiece suction molding die as set forth in claim 4, wherein: the pushing seat (403) is connected in a sliding groove of the fixed frame (4) in a sliding way.

6. The thin-walled workpiece suction molding die as set forth in claim 5, wherein: the outer surface of the pushing seat (403) is fixedly connected with two moving seats (404), and the moving seats (404) are slidably connected to the inner wall of the fixed frame (4).

7. The thin-walled workpiece suction molding die as set forth in claim 6, wherein: a contact seat (5) is arranged under the pushing seat (403), and four contact seats (5) are fixedly connected to the upper surface of the processing platform (1).