CN223803023U - Fold slider secondary demoulding structure - Google Patents

Abstract

The utility model relates to a die. A secondary demoulding structure of a stacked sliding block comprises a lower template, wherein an upper sliding block and a lower sliding block are arranged in the lower template, a lower die core and a lower die insert are further arranged in the lower template, a first thimble plate structure and a second thimble plate structure are arranged below the lower template, the other end of a shovel machine is fixed on the first thimble plate structure, the other end of the shovel machine is connected with the lower sliding block, one end of a thimble is fixed on the second thimble plate structure, the other end of the thimble is connected with the lower die insert, one end of a sliding block ejector block is further fixed on the second thimble plate structure, the other end of the sliding block ejector block is located below an upper sliding block, and a delay gap is formed between the sliding block ejector block and the upper sliding block. The utility model provides a double-slide block demoulding structure with simple structure, shortened production period, improved product productivity and saved cost, which solves the technical problems of complex structure, long production period and high cost of the demoulding device with a step-by-step back-off structure in the prior art.

Description

Fold slider secondary demoulding structure

Technical Field

The utility model relates to a die, in particular to a secondary demoulding structure of a stacked sliding block.

Background

The mould is used for producing various moulds and tools of the needed products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods in industry. In short, a mold is a tool used to make a molded article, which is made up of various parts, with different molds being made up of different parts. In the demolding process of the mold, the mold is often turned back or a demolding part exists due to the shape specificity of the product. In the traditional scheme at present, two structures with different characteristics, namely inverted buckles on the side edges of products and sequential demolding are arranged, the demolding sequence is controlled through a plurality of oil cylinders, and the structure is complex, the production period is long and the cost is high.

Disclosure of Invention

The utility model provides a double-slide block demoulding structure with simple structure, shortened production period, improved product productivity and saved cost, which solves the technical problems of complex structure, long production period and high cost of the demoulding device with a step-by-step back-off structure in the prior art.

The technical problem is solved by the following technical scheme that the secondary demoulding structure of the stacked sliding block comprises a lower template, wherein an upper sliding block and a lower sliding block which are arranged up and down are arranged in the lower template, a lower die core and a lower die insert are further arranged in the lower template, the lower die insert is positioned in the lower die core, the lower die core is positioned at one side of the upper sliding block and one side of the lower sliding block, a first thimble plate structure and a second thimble plate structure are arranged below the lower template, the other end of a shovel is fixed on the first thimble plate structure, the other end of the shovel is connected with the lower sliding block, one end of a thimble is fixed on the second thimble plate structure, the other end of the thimble is connected with the lower die insert, one end of a slider ejector is also fixed on the second thimble plate structure, the other end of the slider ejector is positioned below the upper sliding block, and a delay gap is arranged between the slider ejector block and the upper sliding block. By adopting two sets of ejector plate structures, the sequential sub-steps of ejection can be realized for different inversions, and meanwhile, a gap is arranged between the sliding block ejector block and the upper sliding block, so that when the second ejector plate structure moves, the ejector pin ejects the lower die insert first, then the sliding block ejector block contacts the upper sliding block to eject the upper sliding block, and the sequential ejection steps are completed, namely the lower sliding block, the lower die insert and the upper sliding block. The secondary demoulding of the stacked sliding blocks is realized, and the requirements of improving the productivity of products, reducing the cost and the like are met.

Preferably, the first thimble plate structure comprises a first upper thimble plate and a first lower thimble plate, one end of the shovel is fixed on the first upper thimble plate through a bolt, the first thimble plate structure is connected with an oil cylinder driving piece, and the oil cylinder driving piece is positioned on the side face of the lower template. The ejector plate structure is completed by adopting the cooperation of the two ejector plates, so that the first upper ejector plate is conveniently packaged and fixed in the first upper ejector plate, the structure is simpler, the oil cylinder is positioned on the side surface of the lower template, the design of the lower template is not influenced, and meanwhile, the first ejector plate structure can be conveniently driven.

Preferably, the first thimble plate structure is provided with a thimble through hole and a sliding block ejection through hole, the thimble through hole is in clearance fit with the thimble, and the sliding ejection through hole is in clearance fit with the sliding block ejection.

Preferably, the second ejector plate structure comprises a second upper ejector plate and a second lower ejector plate, the second upper ejector plate is provided with an ejector pin limiting hole and a sliding block ejector block limiting hole, and the second lower ejector plate encapsulates the ejector pin limiting hole and the sliding block ejector block limiting hole.

Preferably, the shape of the ejector pin limiting hole is the same as the shape of the end part of the ejector pin, the ejector pin limiting hole is T-shaped, the shape of the slide block ejector block limiting hole is the same as the shape of the end part of the slide block ejector block, and the shape of the slide block ejector block limiting hole is L-shaped.

Preferably, the second ejector plate structure is connected with an ejector rod of the injection molding machine, and the ejector rod of the injection molding machine drives the second ejector plate structure to move up and down. The second thimble plate structure is directly driven through the injection molding machine top rod, so that the cost is reduced, and the productivity efficiency is improved.

Preferably, the shovel machine is contacted with the lower sliding block through an inclined plane, and the contact surface of the sliding block top block and the upper sliding block is an inclined plane.

Preferably, upper slide block pressing strips are arranged on two sides of the upper slide block, and lower slide block pressing strips are arranged on two sides of the lower slide block.

Preferably, a first limiting block is arranged on the upper surface of the first thimble structure, and the first limiting block is positioned between the lower die plate and the first thimble structure. Limiting the end point of the movement of the first thimble plate structure to prevent transition interference.

Preferably, a second limiting block is mounted on the upper surface of the second thimble plate structure, and the second limiting block is located between the first thimble plate structure and the second thimble plate structure. Limiting the end point of the second thimble plate structure movement to prevent transition interference.

The secondary demoulding structure of the stacked sliding block has the advantages that the structure is simple, only one oil cylinder is needed, the injection molding piece jacking rod is directly adopted for driving in other steps, secondary ejection is completed when the injection molding piece acts, the processing technology is simple, the product productivity is high, and the overall cost is saved.

Drawings

Fig. 1 is a perspective view of a stack slider secondary stripping structure for die opening.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is a perspective view of mold closing.

Fig. 4 is a cross-sectional view of fig. 3.

Fig. 5 is a perspective view of fig. 1 with the lower die plate and cylinder components removed, and with first and second slider bars removed.

Fig. 6 is a perspective view of the lower core and lower insert and ejector pin of fig. 1.

Fig. 7 is a perspective view of the upper and lower sliders, the shovel, and the like in fig. 1.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

Examples:

As shown in fig. 1 and 2 and 3 and 4 and 5, a double-slide-block demoulding structure comprises a lower die plate 1, and an oil cylinder 4 is arranged on one side of the lower die plate 1. An upper slide block 10 and a lower slide block 11 which are arranged up and down are arranged on the lower die plate 1, an upper slide block pressing bar 19 is arranged on two sides of the upper slide block 10, a lower slide block pressing bar 20 is arranged on two sides of the lower slide block 11, and the upper slide block pressing bar 19 and the lower slide block pressing bar 20 are fixed on the lower die plate 1. An inclined containing cavity is arranged in the lower slide block 11, one end of the shovel 9 penetrates into the containing cavity, and the shovel 9 is connected with the lower slide block 11 through an inclined plane. The lower part of the upper slider 10 is provided with a slider top block 8, the upper end surface of the slider top block 8 is an inclined surface 22, the butt joint position of the upper slider 10 and the slider top block is also an inclined surface 21, and a delay gap 23 is reserved between the slider top block 8 and the upper slider 10 in an initial state (as shown in fig. 7).

As shown in fig. 6, a lower die core 18 is provided at one side of the lower slide block, the lower die core 18 is fixed in the lower die plate 1, a lower die insert 5 is installed in the lower die core 18, and the lower end of the lower die insert 5 is connected with one end of the thimble 7.

A first thimble plate structure 2 and a second thimble plate structure 3 are arranged below the lower template 1 in sequence. The upper surface at first thimble board structure 2 is through the fix with screw first stopper 12, and first stopper 12 is located between lower bolster 1 and the first thimble board structure 2, is fixed with second stopper 13 through the fix with screw at the upper surface of second thimble board structure 3, and second stopper is located between second thimble board structure 3 and the first thimble board structure 2 13. The first thimble plate structure 2 is connected with the oil cylinder 4, and is driven by the oil cylinder 4 to move up and down.

The first ejector plate structure 2 comprises a first upper ejector plate 14 and a first lower ejector plate 15, the shovel 9 penetrates through the lower template 1 to extend into the first upper ejector plate 14, and then the end part of the shovel is fixed on the first upper ejector plate 14 through bolts penetrating through the first lower ejector plate 15.

The second ejector plate structure 3 comprises a second upper ejector plate 16 and a second lower ejector plate 17, the second upper ejector plate 16 is provided with ejector pin limiting holes and sliding block ejector block limiting holes, the ejector pin limiting holes are identical in shape to the end parts of ejector pins, the ejector pin limiting holes are T-shaped, the sliding block ejector block limiting holes are identical in shape to the end parts of the sliding block ejector blocks, the sliding block ejector block limiting holes are L-shaped, and after the ejector pins and the sliding block ejector blocks are mounted on the second upper ejector plate 16, the second lower ejector plate 17 is fixed below the second upper ejector plate 16, so that end parts of the ejector pins 7 and the sliding block ejector blocks 8 are fixed. The lower part of the first lower ejector plate 17 is connected with an ejector rod of the injection molding machine through an ejector column 6, and the ejector rod of the injection molding machine drives the second ejector plate structure 3 to move up and down.

When in use, the die opening state is as follows:

The injection molding machine drives the upper die part to be separated from the lower die part in an opening mode, the oil cylinder pulls the first upper ejector plate and the first lower ejector plate to eject, the first limiting block is used for limiting and driving the shovel to move upwards, the shovel slides upwards to push the lower sliding block to separate from the back-off through the inclined plane, the ejector rod of the injection molding machine ejects the second upper ejector plate and the second lower ejector plate, the second ejector plate structure is used for limiting and driving the ejector pin and the sliding block ejector block to move upwards through the second limiting block, the ejector pin is in direct contact with the lower die insert, the lower die insert and a product are ejected to the back-off through the movement of the second ejector plate structure, and the sliding block ejector block pushes the upper sliding block to separate from the whole back-off structure after the back-off ejection, the whole product is completely ejected, and the finished product is taken out.

The mold closing state is as follows:

The lower die insert is manually placed into the lower die core, the second upper ejector pin plate and the second lower ejector pin plate are retracted to the bottom, the ejector pins and the sliding block ejector blocks are driven to the bottom simultaneously, the oil cylinder drives the first upper ejector pin plate and the first lower ejector pin plate to the bottom, the shovel machine is driven to slide to be adhered to the lower die insert for sealing, the upper die part and the lower die part are completely matched with each other for injection molding, and production is carried out in a circulating mode.

The specific embodiments described herein are merely illustrative of the principles of the present invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. A secondary demoulding structure of a stacked sliding block comprises a lower template and is characterized in that an upper sliding block and a lower sliding block which are arranged up and down are arranged in the lower template, a lower die core and a lower die insert are further arranged in the lower template, the lower die insert is arranged in the lower die core, the lower die core is arranged on one side of the upper sliding block and one side of the lower sliding block, a first thimble plate structure and a second thimble plate structure are arranged below the lower template, the other end of a shovel is fixed on the first thimble plate structure, the other end of the shovel is connected with the lower sliding block, one end of a thimble is fixed on the second thimble plate structure, the other end of the thimble is connected with the lower die insert, one end of a sliding block ejector is also fixed on the second thimble plate structure, the other end of the sliding block ejector is arranged below the upper sliding block, and a delay gap is arranged between the sliding block ejector and the upper sliding block.

2. The secondary demoulding structure with the stacked sliding blocks is characterized in that the first thimble plate structure comprises a first upper thimble plate and a first lower thimble plate, one end of the shovel is fixed on the first upper thimble plate through bolts, the first thimble plate structure is connected with an oil cylinder driving piece, and the oil cylinder driving piece is located on the side face of the lower template.

3. The secondary demoulding structure of the stacked sliding block according to claim 1, wherein the first ejector plate structure is provided with an ejector pin through hole and a sliding block ejector block through hole, the ejector pin through hole is in clearance fit with the ejector pin, and the sliding block ejector block through hole is in clearance fit with the sliding block ejector block.

4. The secondary demolding structure of the stacked sliding block of claim 1, wherein the second ejector plate structure comprises a second upper ejector plate and a second lower ejector plate, ejector pin limiting holes and sliding block ejector block limiting holes are formed in the second upper ejector plate, and the second lower ejector plate encapsulates the ejector pin limiting holes and the sliding block ejector block limiting holes.

5. The secondary demoulding structure of the stacked sliding block of claim 4, wherein the shape of the ejector pin limiting hole is the same as the shape of the end part of the ejector pin, the ejector pin limiting hole is T-shaped, the shape of the sliding block ejector block limiting hole is the same as the shape of the end part of the sliding block ejector block, and the shape of the sliding block ejector block limiting hole is L-shaped.

6. The secondary stripping structure for stacked sliders as claimed in any one of claims 1 to 5, wherein the second ejector plate structure is connected to an ejector rod of the injection molding machine, and the ejector rod of the injection molding machine drives the second ejector plate structure to move up and down.

7. The secondary demolding structure for stacked sliding blocks according to any one of claims 1 to 5, wherein the shovel is contacted with the lower sliding block through an inclined plane, and the contact surface of the sliding block top block and the upper sliding block is an inclined plane.

8. The secondary stripping structure for stacked sliders as claimed in any one of claims 1 to 5, wherein upper slider pressing bars are provided on both sides of the upper slider, and lower slider pressing bars are provided on both sides of the lower slider.

9. The secondary stripping structure for stacked sliders as recited in any one of claims 1-5, wherein a first limiting block is mounted on the upper surface of the first ejector pin structure, and the first limiting block is located between the lower die plate and the first ejector pin structure.

10. The secondary stripping structure for a stacked slider as recited in any one of claims 1 to 5, wherein a second stopper is mounted on an upper surface of the second ejector plate structure, and the second stopper is located between the first ejector plate structure and the second ejector plate structure.