CN216267368U

CN216267368U - Automatic mould of drawing of patterns

Info

Publication number: CN216267368U
Application number: CN202122992151.8U
Authority: CN
Inventors: 汪洋; 钟友明
Original assignee: Xiamen Xinhuite Precision Mould Co ltd
Current assignee: Xiamen Xinhuite Precision Mould Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-04-12
Anticipated expiration: 2031-12-01

Abstract

The application discloses an automatic demoulding mould, which relates to the technical field of injection moulds and comprises a mould frame, wherein an upper mould and a lower mould which are matched with each other for use are arranged on the mould frame, a forming cavity is arranged between the upper mould and the lower mould, a mould core for forming a workpiece is arranged in the forming cavity, a connecting plate is arranged above the upper mould, the mould core is connected with the connecting plate, a demoulding component is arranged in the mould frame, the demoulding component comprises at least one ejector rod and a supporting plate, the supporting plate is arranged on the mould frame in a sliding manner and is positioned below the lower mould, one end of the ejector rod is connected with the supporting plate, the other end of the ejector rod penetrates through the lower mould in a sliding manner and is abutted against the mould core, at least one group of limiting components for limiting the mould core is arranged in the upper mould, the limiting component comprises a sliding block and a pulling block for enabling the sliding block to move horizontally, the sliding block is arranged in the upper mould, one side of the sliding block is abutted against the mould core and is provided with a mould cavity adaptive to the mould core, and a panel is arranged on the connecting plate, one end of the pulling block penetrates through the connecting plate to be connected with the panel, and the other end of the pulling block penetrates through the sliding block.

Description

Automatic mould of drawing of patterns

Technical Field

The application relates to the technical field of injection molds, in particular to an automatic demolding mold.

Background

Injection molding is a method for producing moldings from industrial products, which generally use rubber injection molding and plastic injection molding. An injection molding machine is a main molding device for making thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by an injection molding machine and the die.

In production, some workpieces with complicated shapes are often produced, for example, when workpieces such as claw shapes are produced, the demoulding process is troublesome, the demoulding mechanism has a complicated structure, more parts are required, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the demoulding mechanism structure is complicated and the manufacturing cost is high, the application provides an automatic demoulding mould.

The application provides an automatic mould of drawing of patterns adopts following technical scheme.

An automatic demoulding mould comprises a mould frame, wherein an upper mould and a lower mould which are matched with each other for use are arranged on the mould frame, a forming cavity is arranged between the upper mould and the lower mould, a mould core for forming a workpiece is arranged in the forming cavity, a connecting plate is arranged above the upper mould, the mould core is connected with the connecting plate, a demoulding component is arranged in the mould frame, the demoulding component comprises at least one ejector rod and a supporting plate, the supporting plate is arranged on the mould frame in a sliding manner and is positioned below the lower mould, one end of the ejector rod is connected with the supporting plate, the other end of the ejector rod penetrates through the lower mould in a sliding manner and is abutted against the mould core, at least one group of limiting components for limiting the mould core is arranged in the upper mould, the limiting component comprises a sliding block and a pulling block for enabling the sliding block to move horizontally, the sliding block is arranged on the upper mould in a sliding manner, one side of the sliding block is abutted against the mould core and is provided with a mould cavity adapted to the mould core, the connecting plate is provided with a panel, one end of the pulling block penetrates through the connecting plate to be connected with the panel, and the other end of the pulling block penetrates through the sliding block.

Through adopting the above technical scheme, during the die sinking, the panel rebound, drive and draw the piece rebound, draw the piece to make slider horizontal motion on last mould, the slider leaves the mold core, connecting plate rebound, take out the mold core from the one-tenth die cavity, the mold core back of taking out, go up mould rebound, make fashioned work piece expose, promote the backup pad and make ejector pin rebound, the work piece that the lower mould will be stayed to the ejector pin is ejecting from the lower mould, accomplish the drawing of patterns, when can accomplish the drawing of patterns of jack catch class work piece, drawing of patterns subassembly simple structure, occupation space is little, low in manufacturing cost.

Optionally, one end of the ejector rod, which is far away from the support plate, is provided with a protrusion for jacking the workpiece in cooperation with the workpiece.

Through adopting above-mentioned technical scheme, the bellying on the ejector pin can be the fashioned work piece contact better, ejecting fashioned work piece from the lower mould.

Optionally, one end of the ejector rod, which is close to the forming cavity, is inclined towards the central axis direction of the forming cavity, and the lower die is provided with a movable hole for the ejector rod to move up and down.

Through adopting above-mentioned technical scheme, set up the ejector pin slope, be that the ejector pin is when upwards moving, the ejector pin exerts the force to the axis direction slope of shaping chamber for the work piece, can be better ejecting the work piece, reduced the work piece card when ejecting the work piece in the unable ejecting possibility of lower mould.

Optionally, one side of the sliding block, which is far away from the mold core, is provided with a first inclined plane, the first inclined plane is provided with a clamping groove along the inclination direction, one end of the pulling block, which is far away from the connecting plate, is provided with a second inclined plane matched with the first inclined plane for use, a clamping block is arranged on the second inclined plane along the inclination direction, and the pulling block is clamped with the clamping groove through the clamping block.

Through adopting above-mentioned technical scheme, will draw the draw block on the piece and the draw-in groove joint on the slider, draw the piece through upwards the pulling and make the slider remove to the direction of keeping away from the die cavity.

Optionally, a sliding groove for sliding the sliding block is formed in the connecting plate, and the sliding groove penetrates through the connecting plate.

Through adopting above-mentioned technical scheme, the rebound panel during the die sinking, the panel drives and draws the piece rebound, draws the piece to make the slider slide in the spout, and the spout runs through the connecting plate, provides more removal spaces for the slider.

Optionally, at least one limiting column is arranged at the edge of the upper die, and the limiting column is located on a moving path of the sliding block.

Through adopting above-mentioned technical scheme, when the slider slided in the spout, spacing post can keep off the slider in the spout, can avoid the slider to follow the spout in the roll-off.

Optionally, a moving groove for moving the end, far away from the connecting plate, of the pulling block up and down is formed in the lower die.

Through adopting above-mentioned technical scheme, because the space is less, the moving distance of slider is shorter after avoiding drawing the piece to leave the slider, and the mold core can't be taken out, and the removal groove provides more removal spaces for drawing the piece for draw the piece to make the slider leave the mold core completely.

Optionally, the die holder is vertically and rotatably provided with at least one screw rod, the screw rod penetrates through the support plate and is inserted into the lower die, the support plate is rotatably provided with a threaded pipe, and the screw rod is in threaded connection with the threaded pipe.

By adopting the technical scheme, the screw rod is rotated, the screw rod drives the threaded pipe in the supporting plate to rotate, the connecting plate moves upwards, and the ejector rod moves upwards to eject the workpiece.

In summary, the present application includes at least one of the following advantages: the mold core can be drawn out by moving the panel, the connecting plate and the upper mold once, the supporting plate enables the ejector rod to eject the workpiece upwards, the workpiece demoulding of the clamping jaws can be completed, the structure is simple, the occupied space is small, and the manufacturing cost is low.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

Fig. 4 is a schematic structural view of the limiting assembly.

Description of reference numerals:

1. a mold frame; 11. a screw; 2. an upper die; 21. a limiting column; 3. a lower die; 31. a movable hole; 32. a moving groove; 4. a molding cavity; 41. a mold core; 5. a connecting plate; 51. a chute; 6. a demolding component; 61. a top rod; 611. a protrusion; 62. a support plate; 621. a threaded pipe; 7. a limiting component; 71. a slider; 711. a first inclined plane; 712. a card slot; 72. pulling the block; 721. a mold cavity; 722. a second inclined plane; 723. a clamping block; 8. a panel.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a mold capable of automatically demolding. Referring to fig. 1 and 2, the automatic demolding mold comprises a mold frame 1, wherein an upper mold 2 and a lower mold 3 which are matched with each other for use are arranged on the mold frame 1, a molding cavity 4 is arranged between the upper mold 2 and the lower mold 3, a mold core 41 for molding a workpiece is arranged in the molding cavity 4, a connecting plate 5 is arranged above the upper mold 2, and the mold core 41 is connected with the connecting plate 5.

Be equipped with drawing of patterns subassembly 6 in the die carrier 1, drawing of patterns subassembly 6 includes at least ejector pin 61 and backup pad 62, and backup pad 62 slides and sets up on die carrier 1 and be located the below of lower mould 3, and the one end and the backup pad 62 of ejector pin are connected, and the other end of ejector pin 61 slides and passes lower mould 3, and the one end that backup pad 62 was kept away from to ejector pin 61 is equipped with and is used for cooperating the work piece to use the arch 611 with the work piece jack-up, and ejector pin 61 contradicts in the work piece through arch 611. In order to avoid the workpiece being clamped on the top of the lower die 3 when the ejector rod 61 jacks up the workpiece, one end of the ejector rod 61 close to the forming cavity 4 inclines towards the central axis direction of the forming cavity 4, and the lower die 3 is provided with a movable hole 31 for the ejector rod 61 to move up and down. When demoulding, the supporting plate 62 jacks up the ejector rod 61, and the ejector rod 61 ejects the formed workpiece out of the lower die 3 to finish demoulding. The number of the push rods 61 is 4 in the embodiment, and the number of the push rods 61 can be 2 or 3 in other embodiments.

At least one screw rod 11 is vertically and rotatably arranged on the die carrier 1, the screw rod 11 is connected with an external motor, the screw rod 11 penetrates through the supporting plate 62 and is inserted in the lower die 3, a threaded pipe 621 is rotatably arranged in the supporting plate 62, and the screw rod 11 is in threaded connection with the threaded pipe 621. The motor drives the screw rod 11 to rotate, so that the threaded pipe 621 moves on the screw rod 11, and the threaded pipe 621 drives the supporting plate to move on the screw rod 11.

Referring to fig. 3 and 4, at least one group of limiting assemblies 7 for limiting the mold core 41 is arranged in the upper mold 2, each limiting assembly 7 comprises a sliding block 71 and a vertically arranged pulling block 72, the sliding block 71 is slidably arranged on the upper mold 2, the connecting plate 5 is provided with a sliding groove 51 for the sliding block 71 to slide, and the sliding groove 51 penetrates through the connecting plate 5. One side of the sliding block 71 abuts against the mold core 41 and is provided with a mold cavity 721 adapted to the mold core 41, the connecting plate 5 is provided with a panel 8, one end of the pulling block 72 penetrates through the connecting plate 5 to be connected with the panel 8, one side of the sliding block 71 away from the mold core 41 is provided with a first inclined surface 711, the first inclined surface 711 is provided with a clamping groove 712 along an inclined direction, the clamping groove 712 is a T-shaped groove in the embodiment, and the clamping groove 712 can also be a dovetail groove or the like in other embodiments. One end of the pulling block 72, which is far away from the connecting plate 5, is provided with a second inclined surface 722 which is matched with the first inclined surface 712, a clamping block 723 is arranged on the second inclined surface 722 along the inclined direction, and the pulling block 72 is clamped with the clamping groove 712 through the clamping block 723. The pulling block 72 is pulled upwards, and the pulling block 72 drives the sliding block 71 to slide in the sliding groove 51 through the fixture 723, so that the sliding block 71 leaves the mold core 41.

Because the space is small, in order to avoid the situation that the sliding block 71 is not completely separated from the mold core 41 when the sliding block 72 is pulled by the pulling block 71, the lower mold 3 is provided with a moving groove 32 for enabling one end of the pulling block 72, which is far away from the connecting plate 5, to move up and down, the pulling block 72 can be inserted into the moving groove 32 in the up and down moving process, so that the pulling block 72 provides a space for moving up and down, and the sliding block 71 can be completely separated from the mold core 41 under the driving of the pulling block 72.

In order to prevent the sliding block 71 from sliding out of the sliding groove 51 after leaving the mold core 41, two limiting columns 21 are arranged at the edge position of the upper mold 2, the limiting columns 21 are located on the moving path of the sliding block 71, and after the sliding block 71 leaves the mold core 41, the limiting columns 21 can block the sliding block 71 in the sliding groove 51 to prevent the sliding block 71 from sliding out of the sliding groove 51.

The implementation principle of the automatic demoulding mould is as follows: when the mold is opened, the panel 8 moves upwards to drive the pull block 72 to move upwards, the pull block 72 enables the slide block 71 to move in the slide groove 51 in the moving process, and the slide block 71 leaves the mold core 41. The connecting plate 5 moves upward to extract the mold core 41 in the molding cavity 4, and the upper mold 2 moves upward after the mold core 41 is extracted to expose the molded workpiece. The screw 11 rotates to move the support plate 62 upward, the support plate 62 moves the ejector rod 61 upward, and the ejector rod 61 ejects the molded workpiece to complete demolding.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an automatic mould of drawing of patterns, includes die carrier (1), is equipped with last mould (2) and lower mould (3) that mutually support and use on die carrier (1), its characterized in that: the die comprises an upper die (2) and a lower die (3), wherein a forming cavity (4) is arranged between the upper die (2) and the lower die (3), a die core (41) used for forming a workpiece is arranged in the forming cavity (4), a connecting plate (5) is arranged above the upper die (2), the die core (41) is connected with the connecting plate (5), a demoulding component (6) is arranged in the die carrier (1), the demoulding component (6) comprises at least one ejector rod (61) and a supporting plate (62), the supporting plate (62) is arranged on the die carrier (1) in a sliding manner and is positioned below the lower die (3), one end of the ejector rod is connected with the supporting plate (62), the other end of the ejector rod (61) penetrates through the lower die (3) in a sliding manner and is abutted against the die core (41), at least one group of limiting components (7) used for limiting the die core (41) is arranged in the upper die (2), each limiting component (7) comprises a sliding block (71) and a pulling block (72) used for enabling the sliding block (71) to horizontally move, slider (71) slide to set up in last mould (2), one side of slider (71) is contradicted in mold core (41) and is equipped with die cavity (721) that adapts to with mold core (41), be equipped with panel (8) on connecting plate (5), the one end of drawing piece (72) is passed connecting plate (5) and is connected with panel (8), the other end of drawing piece (72) passes slider (71).

2. An automatic release mold according to claim 1, wherein: one end of the ejector rod (61) far away from the supporting plate (62) is provided with a protrusion (611) used for being matched with a workpiece to jack the workpiece.

3. An automatic release mold according to claim 2, wherein: one end of the ejector rod (61) close to the molding cavity (4) inclines towards the central axis direction of the molding cavity (4), and the lower die (3) is provided with a movable hole (31) for the ejector rod (61) to move up and down.

4. An automatic release mold according to claim 1, wherein: one side that mould core (41) were kept away from in slider (71) is equipped with first inclined plane (711), be equipped with draw-in groove (712) along the incline direction on first inclined plane (711), the one end of pulling block (72) keeping away from connecting plate (5) is equipped with second inclined plane (722) with first inclined plane (711) cooperation use, be equipped with fixture block (723) along the incline direction on second inclined plane (722), pull block (72) and draw-in groove (712) joint through fixture block (723).

5. An automatic release mold according to claim 4, wherein: the connecting plate (5) is provided with a sliding groove (51) for the sliding of the sliding block (71), and the sliding groove (51) penetrates through the connecting plate (5).

6. An automatic release mold according to claim 5, wherein: the edge position of the upper die (2) is provided with at least one limiting column (21), and the limiting column (21) is located on the moving route of the sliding block (71).

7. An automatic release mold according to claim 6, wherein: and a moving groove (32) for enabling one end of the pulling block (72) far away from the connecting plate (5) to move up and down is arranged on the lower die (3).

8. An automatic release mold according to claim 1, wherein: the die set (1) is vertically and rotatably provided with at least one screw rod (11), the screw rod (11) penetrates through the supporting plate (62) and is inserted in the lower die (3), the supporting plate (62) is rotatably provided with a threaded pipe (621), and the screw rod (11) is in threaded connection with the threaded pipe (621).