CN219133111U - Structure for die internal flat cutting head - Google Patents

Abstract

The utility model relates to the technical field of in-mold trimming. The utility model provides a structure for in mould cut-out stub bar, includes module and lower module, the bottom of last module be equipped with the heel piece, be equipped with down the slider on the lower module, be equipped with the level cut structure that can follow the horizontal direction and remove in the slider down, be equipped with the drive structure that can drive the level cut structure and remove in the heel piece, be equipped with the oil circuit in the last module, be equipped with the oil circuit keysets on the module is gone up with the oil circuit from drive structure transfer to the heel piece. The structure for the die internal trimming head is convenient to install, effectively reduces the number of waterways and oil ways in the die, reduces oil leakage risks, is convenient to operate and has a stable cutting effect; the problem of exist among the prior art through manual work or lathe excision stub bar alone or runner inefficiency, current in-mould level cut structure need offer a plurality of water routes and oil circuit in the mould just can accomplish the cutting, be inconvenient for installation and adjustment, increased the technical problem of oil leak risk simultaneously.

Description

Structure for die internal flat cutting head

Technical Field

The utility model relates to the technical field of in-mold trimming, in particular to a structure for an in-mold trimming head.

Background

With the rapid development of the mold industry, the mold is an essential key process equipment in industrial production. The parts produced in batches by using the die have the advantages of high efficiency, high consistency, low energy consumption, high precision, high complexity and the like, and are widely applied to various fields. The mold may be classified into a stamping mold, a plastic mold, a casting mold, a forging mold, a rubber mold, a powder metallurgy mold, a wire drawing mold, an inorganic material molding mold, and the like according to the processing object and the processing process.

In the injection molding field, an injection mold mainly comprises a front mold, a rear mold, a gate, a runner and other basic structures, a cavity is formed after the front mold and the rear mold are assembled, the gate is a section of thin and short runner connected between the cavity and the runner, and a flowing medium enters an inlet of the cavity, so that a gate or a stub bar residue exists in a product after injection molding, and a qualified product cannot be obtained.

At present, the mode of eliminating the runner is mainly through manual operation, and through manual breaking off or lathe processing is got rid of, and the operation mode wastes time and energy, with high costs, the product uniformity is poor, product appearance quality, and inefficiency, current in-mold flat cutting structure need set up a plurality of water routes and oil circuits in the front and back mould, just can realize cutting, is inconvenient for installation and adjustment, has increased the risk of having connect the oil leak simultaneously, has consequently had the necessity of improvement.

Disclosure of Invention

The structure for the die internal trimming head is convenient to install, effectively reduces the number of waterways and oil ways in the die, reduces oil leakage risks, is convenient to operate and has a stable cutting effect; the problem of exist among the prior art through manual work or lathe excision stub bar alone or runner inefficiency, current in-mould level cut structure need offer a plurality of water routes and oil circuit in the mould just can accomplish the cutting, be inconvenient for installation and adjustment, increased the technical problem of oil leak risk simultaneously.

The technical problems of the utility model are solved by the following technical scheme: the utility model provides a structure for in mould butt stock head, includes module and lower module on can vertically opening, the bottom of last module be equipped with the heel piece, be equipped with on the lower module with the crisscross complex lower slider of heel piece, be equipped with the butt structure that can follow the horizontal direction and remove in the lower slider, be equipped with the drive structure that can drive butt structure and remove in the heel piece, be equipped with the oil circuit that runs through heel piece and drive structure to be connected in the last module, be equipped with the oil circuit keysets on the last module of oil circuit follow drive structure transfer to the heel piece. The upper module and the lower module can be longitudinally combined and can be subjected to injection molding, in the molding process, redundant stub bars can be formed at the glue injection port, the driving structure is controlled to move along the horizontal direction, the horizontal cutting structure is driven to move towards one side close to the stub bars, further, the stub bars and products are divided, the molding quality of the products is guaranteed, the driving structure is used for controlling pressurization or pressure relief through an oil way, the driving structure is driven towards one side close to the stub bars during pressure relief, the driving structure is reversely reset during pressure relief, the oil way adapter plate can transfer the oil way from the driving structure to the heel block, the situation that the cutting of the stub bars can be realized only by connecting a plurality of water pipes and oil pipes through the traditional cutting structure is avoided, and meanwhile, the risk of oil leakage is reduced.

Preferably, the driving structure comprises a driving cylinder fixed in the heel block, and a driving rod which can extend towards the horizontal cutting structure is arranged in the driving cylinder. The driving cylinder is used as a main power structure of the driving structure, and the extending direction of the driving rod is controlled by controlling the oil supplementing or discharging in the driving cylinder.

Preferably, the driving cylinder is a one-way oil cylinder, and the oil circuit is connected with the driving cylinder. The unidirectional oil cylinder is convenient to install and adjust, meanwhile, the unidirectional oil cylinder can complete the movement of the control driving rod only by one oil way, so that the time and steps during installation are greatly saved, the number of external oil pipes is reduced, and the possibility of oil leakage is reduced.

Preferably, the driving structure further comprises a top plate fixed at the joint of the driving cylinder and the driving rod, the outer side of the top plate is provided with a force storage chute, and a reset spring is arranged between the top plate and the force storage chute. The roof is in holding power spout internal reciprocating sliding, injects fluid in the in-process actuating lever of blank, and actuating cylinder drive roof and actuating lever are moved to the one side that is close to the level cut structure, and at roof removal in-process reset spring compressed gradually, when the pressure release in the actuating cylinder, the roof is to reset spring's extrusion effect disappearance, and reset spring drives roof and actuating lever reverse movement realization reset.

Preferably, the leveling cutting mechanism comprises a cutter seat which is slidably arranged on the lower module, a cutter is fixedly arranged in the cutter seat, a guide block is fixedly arranged in a lower sliding block at the bottom of the cutter, and the free end of the cutter is in contact with a stub bar in the lower module. The cutter, the cutter seat and the guide block are of the existing structure, the cutter seat drives the cutter to move along the horizontal direction, the guide block is used for guiding the movement of the cutter, the cutter is ensured to move horizontally, the cutter seat is controlled by the driving structure to realize horizontal movement, when the cutter seat drives the cutter to move leftwards, the cutter is gradually contacted with the stub bar and cuts off the stub bar, and the cutter seat is reset along with the reset of the driving structure.

Preferably, the heel block is provided with a plurality of detachable positioning columns, and the positioning columns penetrate through the heel block and incline downwards with the lower sliding block. The locating column can be with heel piece and lower slider location on the one hand, and on the other hand can assist the die sinking, and with last module and heel piece upwards move open, lower module and lower slider can move open to the right side along the locating column, are convenient for get the piece.

Preferably, the number of the positioning columns is 2. The number of the positioning columns can be increased or decreased according to actual conditions, and the utility model uses the case that the number of the positioning columns is 2 as an example, and the 2 positioning columns are symmetrically arranged on the heel block and the lower sliding block, so that the overall stability is improved.

Preferably, the cross section of the heel block is L-shaped, and the side wall of the gap of the heel block is contacted with the lower sliding block. The cross section of heel piece is L type, can be convenient for the reference column to run through heel piece and slider installation down like this, and the lateral wall and the slider contact down of the vacancy department of heel piece simultaneously can guarantee spacing between heel piece and the slider down, can not rock at will.

Therefore, the structure for the in-mold platen head has the following advantages: the assembly and the operation are convenient, the number of oil ways arranged in the die is effectively reduced, the time during installation is reduced, the occurrence of oil leakage is reduced, and the stub bar and the product are rapidly cut.

Drawings

Fig. 1 is a schematic view of a structure of a platen head for use in a mold according to the present utility model in a front cross-sectional view.

Fig. 2 is a schematic perspective view of the assembly of the heel block and the lower slider in fig. 1.

Fig. 3 is a schematic perspective view of the driving structure of fig. 2.

Fig. 4 is a schematic perspective view of the cut-to-flat structure of fig. 2.

Fig. 5 is an enlarged view at a in fig. 1.

In the figure, an upper module 1, a lower module 2, a lower sliding block 3, a cutter seat 4, a cutter 5, a guide block 6, a stub bar 7, a heel block 8, a positioning column 9, a driving cylinder 10, a top plate 11, a driving rod 12, a power storage chute 13, a return spring 14, an oil circuit conversion plate 15 and an oil circuit 16.

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 structure for trimming a stub bar in a mold comprises an upper module 1 and a lower module 2 which can be longitudinally opened, wherein one side of the lower module 2 is provided with a lower slide 3, a trimming structure is arranged in the lower slide 3, the trimming structure comprises a cutter 5 seat 4 which can transversely slide, a cutter 5 is fixedly arranged in the cutter 5 seat 4, a guide block 6 is arranged in the lower slide 3 at the bottom of the cutter 5, the free end of the cutter 5 is contacted with the stub bar 7 in the lower module 2, a heel block 8 staggered with the lower slide 3 is arranged in the upper module 1, the cross section of the heel block 8 is L-shaped, the side wall of the gap of the heel block 8 is contacted with the lower slide 3, a detachable positioning column 9 is arranged in the heel block 8, the positioning column 9 penetrates the heel block 8 and is inclined downwards with the lower slide 3, the driving structure is installed in the heel block 8, the driving structure comprises a driving cylinder 10 fixed on one side, far away from the lower sliding block 3, in the heel block 8, of the driving cylinder 10, the driving cylinder 10 is a one-way oil cylinder, a top plate 11 capable of horizontally sliding is installed on one side, close to the lower sliding block 3, in the driving cylinder 10, a driving rod 12 is fixedly installed at the free end of the top plate 11, the driving rod 12 extends towards one side, close to the butt structure, of the driving rod 12, and can be in contact with the cutter 5 seat 4, a force storage sliding groove 13 is formed in the outer side of the top plate 11, a reset spring 14 is installed between the top plate 11 and the force storage sliding groove 13, an oil way 16 conversion plate 15 is installed on one side, far away from the lower sliding block 3, in the heel block 8, an oil way 16 is formed in the upper module 1, and the oil way 16 is switched onto the driving cylinder 10 from the heel block 8 through an oil way 16 switching plate.

During operation, the upper module 1 and the lower module 2 are longitudinally combined, after combination, the 2 positioning columns 9 penetrate through the heel block 8 and the lower slider 3 to be mounted, then injection molding is started, after injection molding, the material head 7 is generated at the glue injection port, at the moment, external equipment connected with the oil way 16 is controlled to inject oil into the driving cylinder 10, along with the increase of oil in the driving cylinder 10, the top plate 11 and the driving rod 12 move leftwards, at the moment, the reset spring 14 is compressed by extrusion of the top plate 11, the driving rod 12 moves leftwards and contacts with the cutter 5 seat 4, the cutter 5 seat 4 and the cutter 5 move leftwards, the cutter 5 gradually cuts off the material head 7, the driving cylinder 10 is controlled to release pressure after the material head 7 is cut off, the reset spring 14 assists the top plate 11 and the driving rod 12 to reset in the process of releasing pressure of the driving cylinder 10, then the upper module 1 is controlled to open upwards, and the lower slider 3 drives the lower module 2 to slide rightwards and open along the positioning columns 9 in the process of opening of the upper module 1, and the taking a piece is convenient.

Claims (8)

1. A structure that is used for in-mould blank stub bar, including last module and the lower module that can vertically open, its characterized in that: the bottom of last module be equipped with the heel piece, be equipped with on the lower module with the crisscross complex lower slider of heel piece, be equipped with in the lower slider and follow the level and cut the structure that the horizontal direction removed, be equipped with the drive structure that can drive the level and cut the structure and remove in the heel piece, be equipped with the oil circuit that runs through the heel piece and be connected with drive structure in the last module, be equipped with in the heel piece with the oil circuit keysets on the last module of oil circuit follow drive structure transfer.

2. A structure for an in-mold platen head according to claim 1, characterized in that: the driving structure comprises a driving cylinder fixed in the heel block, and a driving rod which can extend towards the flat cutting structure is arranged in the driving cylinder.

3. A structure for an in-mold platen head according to claim 2, characterized in that: the driving cylinder is a one-way oil cylinder, and the oil circuit is connected with the driving cylinder.

4. A structure for an in-mold platen head according to claim 1, characterized in that: the driving structure also comprises a top plate fixed at the joint of the driving cylinder and the driving rod, a power storage chute is arranged on the outer side of the top plate, and a reset spring is arranged between the top plate and the power storage chute.

5. A structure for an in-mold platen head according to claim 1, characterized in that: the flat cutting structure comprises a cutter seat which is slidably arranged on the lower module, a cutter is fixedly arranged in the cutter seat, a guide block is fixedly arranged in a lower sliding block at the bottom of the cutter, and the free end of the cutter is in contact with a stub bar in the lower module.

6. A structure for an in-mold platen head according to claim 1, characterized in that: the heel block on be equipped with a plurality of detachable reference column, the reference column runs through heel block and lower slider downward sloping.

7. A structure for an in-mold platen head according to claim 6, wherein: the number of the positioning columns is 2.

8. A structure for an in-mold platen head according to claim 6, wherein: the cross section of the heel block is L-shaped, and the side wall of the gap of the heel block is contacted with the lower sliding block.

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