CN213288362U - Thermal forming die - Google Patents

Abstract

The utility model relates to a thermoforming mould, include: the mould comprises a mould main body and a plurality of mould cores, wherein the mould cores are internally provided with cooling water paths, the mould cores are provided with through holes, the cooling water paths are sequentially communicated, and the end parts of the cooling water paths which are mutually connected are provided with sealing pieces; the mold core fixing component at least comprises two mold core fixing components which are respectively oppositely arranged at two ends of the mold main body, the mold core fixing component comprises a fixing piece and a moving piece, one side surface of the fixing piece, which is close to the mold main body, is gradually close to the mold main body, and the moving piece is clamped between the mold main body and the fixing piece; the ejector mechanism comprises an ejector pin and a lifting mechanism, the ejector pin is arranged in the through hole in a sliding mode, and the lifting mechanism is used for driving the ejector pin to lift; the flanging mechanism is used for carrying out negative angle flanging on the product. The ejector pin is used for lifting to eject, the area of the ejector pin is small, the heat dissipation speed is high, and therefore the cooling efficiency of a product can be greatly improved, the circulating cooling time is shortened, and the comprehensive efficiency of equipment is improved.

Description

Thermal forming die

Technical Field

The utility model belongs to the thermoforming equipment field, concretely relates to thermoforming mould.

Background

The hot forming is to heat the plate material to 930 degrees in a heating furnace, so that the metallographic structure of the plate material is completely austenitized. The plate is conveyed to the die through the automatic clamp, pressure maintaining molding and rapid cooling are carried out, so that the part reaches a quenching state, and the hot press molding process of complete martensite is obtained. The tensile strength of the formed part reaches 1300MPa-1500 MPa.

When a body-in-white part on an automobile is produced, enough material taking space needs to be reserved for the clamp when the robot takes the part. This requires the part to be lifted during part removal. The existing material ejection in the industry is of a secondary type, but for a complex hot forming process, the material performance of parts is reduced by using the secondary type surface for ejecting materials, the cooling time is increased, and the efficiency of equipment is greatly reduced. The secondary formed steel block is easy to damage and has higher replacement cost. The above problems are technical problems to be solved in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned technical problem, provide a thermoforming mould.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a thermoforming mold, comprising: the mould comprises a mould main body, wherein the mould main body comprises a plurality of mould cores which are sequentially and horizontally attached and connected, a horizontally arranged cooling water path is arranged in each mould core, a plurality of vertical through holes are formed in each mould core, the cooling water paths are sequentially communicated, and sealing pieces are arranged at the mutually connected end parts of the cooling water paths; and

the mold core fixing component at least comprises two mold core fixing components which are respectively oppositely arranged at two ends of the mold main body, the mold core fixing component comprises a fixing piece and a moving piece, one side surface of the fixing piece, which is close to the mold main body, is gradually close to the mold main body, and the moving piece is clamped between the mold main body and the fixing piece; and

the ejector mechanism comprises an ejector pin and a lifting mechanism, the ejector pin is arranged in the through hole in a sliding mode, and the lifting mechanism is used for driving the ejector pin to lift; and

and the flanging mechanism is used for flanging the product at a negative angle.

The utility model has the advantages that: this application utilizes the thimble to rise and carries out the liftout, because the area of thimble is little, the radiating rate is fast to can improve the cooling efficiency of product greatly, reduce the circulative cooling time, improve equipment's comprehensive efficiency.

Further, the flanging mechanism comprises a driving mechanism and a flanging knife block, the flanging knife block is arranged on the outer side of the die main body, the driving mechanism is used for driving the flanging knife block to move vertically, and when the flanging knife block moves upwards, the flanging knife block is gradually close to the horizontal central axis of the die core.

This application promotes the material through turn-ups sword piece and carries out the turn-ups, only needs very little space just can accomplish turn-ups's action like this to can just carry out the negative angle turn-ups to the part when the space is very compact.

Further, the flanging die further comprises a stroke sensing mechanism, and the stroke sensing mechanism is used for detecting whether the flanging knife block moves to the outer side of the die core.

Further, the stroke induction mechanism comprises a movable contact piece and an induction contact piece, the movable contact piece moves along with the flanging knife block, the induction contact piece is arranged on one side, far away from the mold core, of the induction contact piece, and when the flanging knife block moves to the outer side of the mold core, the movable contact piece is in contact with the induction contact piece.

This application can guarantee that the return stroke targets in place when the sword piece resets through setting up stroke response mechanism.

Furthermore, the flanging mechanism further comprises a limiting component, and the limiting component is used for limiting the rising of the flanging knife block.

Furthermore, the limiting assembly comprises a limiting block and a knife groove formed in the outer side of the die main body, one side, close to the die main body, of the knife groove inclines towards the horizontal central axis of the die main body, the flanging knife block is clamped in the knife groove in a sliding mode, one side, far away from the die main body, of the flanging knife block is connected with the limiting block, and the knife groove is used for limiting the limiting block to be continuously close to the die main body.

This application can prevent turn-ups sword piece motion transition through spacing subassembly.

Further, the ejector pin is detachably connected with the lifting mechanism.

This application is through being connected thimble and elevating system detachable, regard the thimble as a consumer, and be liable to change.

Further, the lifting mechanism is an oil cylinder or an air cylinder.

Further, the fixing piece is close to one side of the die main body is gradually close to the die main body from top to bottom.

This application sets up the inclined plane that is close to mounting platform from top to bottom through the one side that is close to mounting platform with the mounting, inserts between mould main part and the mounting by the drive moving part from top to bottom when the installation moving part for the easier atress of moving part is between the atress main part and the mounting

Drawings

FIG. 1 is a general schematic of the present application;

FIG. 2 is a schematic view of a mold core in an embodiment;

FIG. 3 is a schematic cross-sectional view of the present application;

FIG. 4 is a schematic view of a core fixing unit according to an embodiment;

FIG. 5 is a schematic view of a turn-up mechanism in an embodiment;

the reference numbers are as follows: the mold comprises a mold main body 1, a mold core 11, a cooling water channel 12, a sealing piece 13, a mold core fixing component 2, a fixing piece 21, a movable piece 22, a flanging mechanism 3, a flanging knife block 31, a driving mechanism 32, a power source 321, a push rod 322, a stroke sensing mechanism 4, a movable contact piece 41, a sensing contact piece 42, a knife slot 51, a limiting block 52, a thimble 61 and a lifting mechanism 62.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The following discloses many different embodiments or examples for implementing the subject technology described. In order to simplify the disclosure, a specific example of one or more permutations of the features is described below, but the present disclosure is not limited to the specific example, and the first feature described later in the specification may be connected to the second feature in a direct connection, or may include an embodiment forming an additional feature, and further, may include the use of one or more other intervening features to connect or combine the first feature and the second feature indirectly with each other so that the first feature and the second feature may not be directly connected.

As shown in fig. 1 to 5, an embodiment of a thermoforming mold includes: the mould comprises a mould main body 1, a mould core fixing component 2, a material ejecting mechanism and a flanging mechanism 3.

Wherein, mould main part 1 is fixed on the base, it is concrete, mould main part 1 comprises a plurality of mold core 11 horizontal laminating concatenation in proper order, set up the cooling water route 12 that has the level to set up and the through-hole of vertical setting on the mold core 11, the mold core 11 is laminated being fixed in on the base in proper order, cooling water route 12 communicates in proper order, sealing member 13 is installed to the tip of cooling water route 12 interconnect, this sealing member 13 can be but not limited to the sealing washer, the one side butt that the mounting 21 was kept away from to mold core 11 and the moving part 22 that are located the tip, in the embodiment disclosed in this application, mold core 11 can be connected with the base through the bolt, mold core 11 can.

The mold core fixing component 2 specifically includes a fixing element 21 and a moving element 22, a side surface of the fixing element 21 close to the mold main body 1 is gradually close to the base, the moving element 22 is clamped between the fixing element 21 and the mold main body 1, when the moving element 22 is installed, the moving element 22 can slide towards the base along the fixing element 21, that is, one surface of the moving element 22 is in sliding fit with one surface of the fixing element 21 close to the base, when the moving element 22 slides along the surface of the fixing element 21, because the side surface of the fixing element 21 is an inclined surface gradually close to the base, the moving element 22 also gradually approaches the base when sliding towards one side of the side surface close to the base.

In one embodiment, the side of the fixed member 21 close to the base is an inclined surface gradually converging from top to bottom toward the base, the side of the movable member 22 is an inclined surface, the inclined surface has the same inclination angle as the side of the fixed member 21 close to the base, the inclined surface of the movable member 22 slidably abuts against the side of the fixed member 21 close to the base, and when the movable member 22 slides up and down along the side of the fixed member 21, the movable member 22 can be integrally close to or away from the base. In this embodiment, when locking the mold core 11, the movable element 22 needs to be inserted from top to bottom, and the movable element 22 is inserted from top to bottom to better stress the movable element 22 during manual operation, but it should be understood that, in some embodiments, the side surface of the fixed element 21 may also adopt a planar structure that is not close to the base from top to bottom, for example, the planar structure is inclined from left to right, or even close to the base from bottom to top, for example, an insertion hole may be formed at the bottom of the base at a position where the fixed element 21 is close to the mold main body 1, and the movable element 22 is inserted through the insertion hole, so that the movable element 22 and the fixed element 21 are in sliding fit from bottom to top.

When the mold core 11 is installed, the mold core 11 is sequentially spliced and attached to be installed on the base, the mold core 11 at the end parts of two sides is close to the fixing piece 21, after the mold core 11 is installed, the moving piece 22 is inserted between the mold core 11 and the fixing piece 21, the moving piece 22 is abutted to the mold core 11, at the moment, the moving piece 22 is driven to move towards one side of the base gradually close to the fixing piece 21, the moving piece 22 can be specifically driven to move in a hammering mode, the moving piece 22 gradually moves towards the base, the moving piece 22 is further abutted to the mold core 11 from two ends, the mold cores 11 are sequentially abutted, and therefore gaps between the mold cores 11 are eliminated, the cooling water channels 12 between the mold cores 11 are better sealed, and cooling water is prevented from leaking through the gaps of the mold cores 11.

The movable member 22 may be detachably connected to the fixed member 21 or the base, for example, a threaded hole and a plug thread may be provided on the movable member 22, a hole or a groove corresponding to the threaded hole may be provided on the fixed member 21 or the base, and when the movable member 22 moves to the abutting position, the movable member 22 is fixed by a bolt.

The material ejecting mechanism comprises an ejector pin 61 and a lifting mechanism 62, the ejector pin 61 is slidably sleeved in a through hole on the mold core 11, the lifting mechanism 62 is connected with the ejector pin 61, the lifting mechanism 62 is used for driving the ejector pin 61 to lift, the lifting mechanism 62 can be but not limited to an oil cylinder, the lifting mechanism can be fixed below the base, when thermoforming and pressing are carried out, the top of the ejector pin 61 descends to a position below the top of the mold main body 1, and after thermoforming is completed, the driving mechanism 62 drives the ejector pin 61 to ascend, so that material returning is completed.

This application carries out the pressfitting at two moulds and accomplishes the thermoforming back, utilize thimble 61 to rise and carry out the liftout, thimble 61's area is little, compare in the ejecting structure of current profile, thimble heat accumulation is also relatively less, therefore, the radiating rate is fast, thereby the cooling efficiency that can improve greatly, reduce the circulative cooling time, improve equipment's comprehensive efficiency, as preferred, in the embodiment of this application, thimble 61 can dismantle with elevating system 62 and be connected, concrete connected mode can pass through the buckle, connection such as screw thread, this application does not specifically prescribe a limit, through being connected thimble 61 and elevating system 62 detachable, regard thimble 61 as a consumables, easily change.

The flanging mechanism 3 comprises a driving mechanism 32 and a flanging knife block 31, the flanging knife block 31 is installed on one side outside the mold core 11 and is located on one side, close to the base, of the mold, the driving mechanism 32 is used for driving the flanging knife block 31 to face towards or deviate from the molding surface, and when the flanging knife block 31 moves towards the molding surface on one side, deviating from the molding surface, of the mold core 11, the flanging knife block 31 is gradually close to the middle of the mold core 11. For the sake of understanding, taking the mold core 11 as an example, and taking the upper surface as a molding surface, the flanging knife block 31 is located outside the mold core 11 and near the base, and the driving mechanism 32 drives the flanging knife block 31 to move from bottom to top from the outside of the mold core 11 to the middle of the mold core 11.

In a specific embodiment, the driving mechanism 32 includes a power source 321 and a push rod 322, the power source 321 can be, but is not limited to, an oil cylinder, the power source 321 is connected to the push rod 322, and one end of the push rod 322, which is far away from the power source 321, is close to the molding surface and inclines toward the middle of the mold core 11. For convenience of understanding, taking the mold core 11 horizontally placed and the molding surface as the upper surface of the mold core 11 as an example, the push rod 322 gradually inclines towards the middle of the mold core 11 from bottom to top, the push rod 322 is driven by a power source 321 such as an oil cylinder to move obliquely upwards or downwards, and when the push rod 322 moves upwards, the push rod moves towards the molding surface and gradually approaches to the mold core 11.

On the basis of the embodiment, one end of the push rod 322, which is far away from the power source 321, is connected with the flanging knife block 31 through a hinge, and the knife block can rotate relative to the push rod 322 by hinging the push rod 322 and the knife block, so that the extending length of the knife block can be finely adjusted within a certain range.

The theory of operation of this application is as follows, when carrying out thermoforming, through setting up two relative moulds that correspond, then control two mould pressfittings and accomplish thermoforming, at two mould pressfittings, if need carry out the negative angle turn-ups to the part, then promote turn-ups sword piece 31 through actuating mechanism 32 and move towards the profiled surface, and then be close to mold core 11 middle part, because turn-ups sword piece 31's initial position is located one side of keeping away from the profiled surface on the mould, consequently at this in-process, turn-ups sword piece 31 can promote the material turn-ups at mold core 11 edge gradually, when needs die withdrawal, move back to the mold core 11 outside with turn-ups sword piece 31, then can part two moulds this moment, accomplish thermoforming.

In the embodiment disclosed in the present application, in order to return the flanging knife block 31 to a proper position when resetting and not to prevent the two dies from being separated, the present application further includes a stroke sensing mechanism 4, the stroke sensing mechanism 4 is used for detecting whether the flanging knife block 31 moves to the outside of the die core 11, and the stroke sensing mechanism 4 may be, but is not limited to, an infrared sensing mechanism or a magnetic grid ruler. In a specific embodiment, the stroke sensing mechanism 4 includes a movable contact 41 and a sensing contact 42, the movable contact 41 may be fixed on the push rod 322 or the flanging knife block 31, so that the movable contact 41 may move together with the flanging knife block 31, the sensing contact 42 is fixed on a side of the sensing contact 42 away from the mold core 11, when the flanging knife block 31 moves to the outside of the mold core 11, the movable contact 41 contacts the sensing contact 42, at this time, the movable contact 41 is connected with the sensing contact 42, so as to trigger the sensing contact 42, the sensing contact 42 can send a signal to know that the return stroke is in place, and the sensing contact 42 may be, but not limited to, a contact proximity switch or a push switch.

In addition, some embodiments of the application also disclose spacing subassembly, and spacing subassembly is used for spacing the displacement of flanging knife piece 31 towards the profiled surface. In an embodiment, the limiting assembly includes a knife groove 51 formed on the base of the limiting block 52 and located outside the mold core 11, one side of the knife groove 51 close to the mold core 11 inclines toward the middle of the mold core 11, and the flanging knife block 31 is slidably engaged in the knife groove 51, wherein one side of the flanging knife block 31 away from the mold core 11 is connected with the limiting block 52, the knife groove 51 is used for limiting the limiting block 52 from continuing to approach the mold core 11, specifically, the width of the limiting block 52 may be set to be larger than the width of the knife groove 51, so that when the limiting block 52 moves to one end of the knife groove 51 away from the mold core 11, the knife groove 51 can block the limiting block.

This application promotes the material through turn-ups sword piece 31 and carries out the turn-ups to only need very little space just can accomplish turn-ups's action.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (9)

1. A thermoforming mold, comprising: the mold comprises a mold main body (1), wherein the mold main body (1) comprises a plurality of mold cores (11) which are sequentially and horizontally attached and connected, cooling water channels (12) which are horizontally arranged are arranged in the mold cores (11), a plurality of vertical through holes are formed in the mold cores (11), the cooling water channels (12) in the mold cores (11) are sequentially communicated, and sealing parts (13) are arranged at the mutually connected end parts of the cooling water channels (12); and

the mold core fixing components (2) are at least two, the two mold core fixing components (2) are respectively oppositely arranged at two ends of the mold main body (1), each mold core fixing component (2) comprises a fixing piece (21) and a moving piece (22), one side surface of each fixing piece (21) close to the mold main body (1) is gradually close to the mold main body (1), and the moving pieces (22) are clamped between the mold main body (1) and the corresponding fixing piece (21); and

the ejection mechanism comprises an ejector pin (61) and a lifting mechanism (62), the ejector pin (61) is arranged in the through hole in a sliding mode, and the lifting mechanism (62) is used for driving the ejector pin (61) to lift; and

and the flanging mechanism (3) is used for flanging the product at a negative angle.

2. The thermoforming mold as claimed in claim 1, characterized in that the flanging mechanism (3) comprises a driving mechanism (32) and a flanging knife block (31), the flanging knife block (31) is arranged outside the mold body (1), the driving mechanism (32) is used for driving the flanging knife block (31) to move vertically, and when the flanging knife block (31) moves upwards, the flanging knife block (31) is gradually close to the horizontal central axis of the mold core (11).

3. A thermoforming mould as claimed in claim 2, characterised in that it further comprises a stroke sensing mechanism (4), the stroke sensing mechanism (4) being adapted to detect whether the flanging knife block (31) is moved outside the mould core (11).

4. A thermoforming mould as claimed in claim 3, characterised in that the stroke sensing mechanism (4) comprises a moving contact (41) and a sensing contact (42), the moving contact (41) moves with the flanging knife block (31), the sensing contact (42) is arranged on the side of the sensing contact (42) away from the mould core (11), and when the flanging knife block (31) moves to the outside of the mould core (11), the moving contact (41) contacts with the sensing contact (42).

5. A thermoforming mould as claimed in claim 2, characterised in that the flanging mechanism (3) further comprises a limiting component for limiting the elevation of the flanging knife block (31).

6. The thermoforming mold as claimed in claim 5, wherein the limiting component comprises a limiting block and a knife groove (51) formed in the outer side of the mold main body (1), one side of the knife groove (51) close to the mold main body (1) inclines towards the horizontal central axis of the mold main body (1), the flanging knife block (31) is slidably engaged in the knife groove (51), one side of the flanging knife block (31) far away from the mold main body (1) is connected with the limiting block (52), and the knife groove (51) is used for limiting the limiting block (52) from continuously approaching to the mold main body (1).

7. A thermoforming mould as claimed in claim 1, characterised in that the said ejector pin (61) is removably connected to the said lifting mechanism (62).

8. A thermoforming mould as claimed in claim 1, characterised in that the lifting mechanism (62) is a cylinder or a pneumatic cylinder.

9. A thermoforming mould as claimed in claim 1, characterised in that the fixing member (21) is located on a side of the mould body (1) which is gradually closer to the mould body (1) from top to bottom.

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