CN214773624U - Die holder convenient for replacing die core - Google Patents

Abstract

The utility model belongs to the technical field of injection mold's field and specifically relates to a conveniently change die holder of mold core is related to, and it includes workstation and loading board, the loading board level sets up and is located the top of workstation, be connected with a plurality of support column between loading board and the workstation, be equipped with four unit templates on the loading board, four unit templates enclose in proper order end to end and close out the cavity that is used for placing the mold core, still be equipped with the actuating mechanism who is used for driving four unit templates and is close to each other or keep away from on the workstation. This application has the advantage of conveniently changing the mold core.

Description

Die holder convenient for replacing die core

Technical Field

The application relates to the field of injection molds, in particular to a mold base with a mold core convenient to replace.

Background

The mold is a variety of molds for obtaining a desired product by injection molding, blow molding, extrusion, die casting, forging, molding, smelting, stamping, etc. in industrial production, in short, the mold is a tool for manufacturing a molded article, the tool is composed of various parts, and different molds are composed of different parts.

An injection mold for producing injection tubes in the related art comprises a mold core and a mold base, wherein the mold base is provided with an accommodating cavity for placing the mold core, and one mold core can only be used for producing injection tubes of one size, so that when the injection tubes of different sizes need to be produced, an operator only needs to replace different mold cores.

However, the mold core is heated to expand in the using process, so that the side wall of the mold core is completely attached to the side wall of the accommodating cavity, and at the moment, an operator can take the mold core out of the mold base difficultly, and the mold base has obvious defects.

SUMMERY OF THE UTILITY MODEL

In order to replace the mold core for operators conveniently, the application provides the mold base with the mold core convenient to replace.

The application provides a conveniently change die holder of mold core adopts following technical scheme:

the utility model provides a conveniently change die holder of mold core, includes workstation and loading board, the loading board level sets up and is located the top of workstation, be connected with a plurality of support column between loading board and the workstation, be equipped with four unit templates on the loading board, four unit templates enclose in proper order end to end and close out the cavity that is used for placing the mold core, still be equipped with the actuating mechanism who is used for driving four unit templates and is close to each other or keep away from on the workstation.

Through adopting above-mentioned technical scheme, actuating mechanism can drive four unit template motions, and four unit templates are close to each other, enclose out the cavity that is used for placing the mold core. When the mold core needs to be replaced by an operator, the four unit templates only need to be kept away from each other through the driving mechanism, the operator can directly replace the mold core at the moment, and the replacement process is more convenient. This application has the advantage that can conveniently change the mold core.

Optionally, guide grooves are formed in the bearing plate along the movement direction of the unit templates, one unit template corresponds to one guide groove, the driving mechanism comprises a driving block in a quadrangular frustum shape, the cone tip of the driving block faces the bearing plate, sliding grooves are formed in four cone walls of the driving block respectively, one sliding groove corresponds to one guide groove, the projection of the sliding groove on the bearing plate and the guide groove are arranged in a collinear manner, a sliding block slides in the sliding groove, the cross sections of the sliding block and the sliding groove are arranged in a dovetail shape, a driving arm is connected to the unit template, the driving arm penetrates through the corresponding guide groove and is connected to the corresponding sliding block, a vertically arranged transmission screw rod is connected to the driving block, the bottom end of the transmission screw rod penetrates through the workbench in a sliding manner, and a locking nut used for abutting against the lower surface of the workbench is connected to the transmission screw rod below the workbench in a threaded manner, and the bearing plate is also provided with a limiting assembly for limiting the separation of the unit template and the bearing plate.

Through adopting above-mentioned technical scheme, rotate lock nut, then manual lifting transmission lead screw, transmission lead screw drive the drive block upward movement, and the piece that slides on the drive block inslot slides, and the drive block passes through the unit template motion that the actuating arm drove the correspondence, and four unit templates keep away from each other to the realization is to the relaxation of mold core. In the same way, the locking nut is reversely rotated, the four unit templates are close to each other, and the clamping of the die core is realized.

Optionally, a lifting pressure spring is sleeved on the transmission screw rod, one end of the lifting pressure spring props the driving block, and the other end of the lifting pressure spring props the upper surface of the workbench.

Through adopting above-mentioned technical scheme, after operating personnel turned the locking nut loose, the lifting pressure spring can promote the drive block upward movement automatically to this need not the manual lifting drive lead screw upward movement of operating personnel.

Optionally, a spacing subassembly corresponds a unit template, spacing subassembly is including connecting the stopper in the unit template, it has the spacing groove that supplies the stopper to slide to open on the loading board, the spacing groove is on a parallel with the guide way, the longitudinal section of stopper and spacing groove is the dovetail setting.

Through adopting above-mentioned technical scheme, the limiting block is restricted in the spacing inslot with the dovetail setting to this has reduced the possibility of unit template and loading board separation.

Optionally, the upper surface of the bearing plate is provided with a positioning groove for placing the bottom of the mold core.

Through adopting above-mentioned technical scheme, the location is realized to the position of mold core to the setting of constant head tank to this in-process that has reduced the tight mold core of unit template clamp, the possibility that the unit template promoted the mold core motion.

Optionally, a gap exists between the lower surface of the unit template and the upper surface of the bearing plate.

Through adopting above-mentioned technical scheme, the clearance has reduced the possibility that the slip friction between unit template and the loading board causes the hindrance to the motion of unit template.

Optionally, an ejection pressure spring is supported between the mold core and the groove bottom of the positioning groove, one side of the unit mold plate facing the mold core is fixedly connected with a lower pressing block, one side of the lower pressing block facing away from the unit mold plate is inclined downwards along a direction away from the mold core, and a pressing groove matched with the lower pressing block is formed in the outer side wall of the mold core.

Through adopting above-mentioned technical scheme, the in-process that four unit templates are close to each other, lower briquetting moves gradually to the indent in, and the slope lateral wall that sets up downwards on the lower briquetting cooperates with the indent, can drive one section distance of mold core downstream to this mold core can have abundant extrusion to the ejecting pressure spring, and when four unit templates kept away from each other, ejecting pressure spring has sufficient thrust and promotes the mold core upward movement.

Optionally, an ejection hole is formed in the position, opposite to the bottom of the positioning groove, of the bearing plate, the ejection pressure spring is located in the ejection hole, and the ejection pressure spring is tightly attached to the side wall of the ejection hole.

Through adopting above-mentioned technical scheme, ejecting hole be provided with do benefit to and reduce ejecting pressure spring pressurized deformation's in-process, take place the possibility that the slope is askew to turn round.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving mechanism can drive the four unit templates to move, and the four unit templates are close to each other to enclose a cavity for placing the mold core. When an operator needs to replace the mold core, the four unit mold plates are only required to be mutually far away through the driving mechanism, the operator can directly replace the mold core, and the replacement process is convenient;

2. in the process that four unit templates are close to each other, the lower briquetting moves gradually to the indent in, the cooperation of the last slope of lower briquetting and the indent that sets up downwards can drive one section distance of mold core downstream to this mold core can have abundant extrusion to the ejecting pressure spring, and when four unit templates kept away from each other, the ejecting pressure spring has sufficient thrust and promotes the mold core upward movement.

Drawings

FIG. 1 is a schematic structural diagram for embodying the present application;

FIG. 2 is a cross-sectional view of a drive block for embodying embodiments of the present application;

fig. 3 is an exploded view for showing the connection relationship among the unit mold plate, the bearing plate and the ejecting compression spring in the embodiment of the present application.

Description of reference numerals: 1. a work table; 2. a carrier plate; 3. a support pillar; 4. a unit template; 21. a guide groove; 61. a drive block; 611. a sliding groove; 62. a sliding block; 63. a drive arm; 64. a transmission screw rod; 65. locking the nut; 66. lifting the pressure spring; 22. a limiting groove; 7. a limiting block; 23. positioning a groove; 8. ejecting a pressure spring; 9. pressing the block; 41. pressing a groove; 24. an ejection aperture; 10. and (5) a mold core.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a die holder convenient for replacing a die core. Referring to fig. 1, the die holder convenient for replacing the die core comprises a workbench 1, a bearing plate 2, four unit templates 4 and a driving mechanism for driving the four unit templates 4 to approach or depart from each other.

Referring to fig. 1, a work table 1 is placed on the ground, and a loading plate 2 is horizontally disposed above the work table 1. Four support columns 3 are fixedly connected between the lower surface of the bearing plate 2 and the upper surface of the workbench 1, the four support columns 3 are respectively close to four vertex angles of the bearing plate 2, and the support columns 3 are vertically arranged.

Referring to fig. 1 and 2, the driving assembly includes a driving block 61, a driving arm 63, a driving screw 64, a lifting compression spring 66, and a lock nut 65. The driving block 61 is located between the workbench 1 and the bearing plate 2, the driving block 61 is in the shape of a regular quadrangular frustum pyramid, and the cone tip of the driving block 61 faces the bearing plate 2.

Referring to fig. 2, the transmission screw 64 is vertically arranged, the top end of the transmission screw 64 is fixedly connected to the lower surface of the driving block 61, the bottom end of the transmission screw 64 penetrates through the workbench 1 in a sliding mode, and the locking nut 65 is in threaded connection with a rod body of the transmission screw 64 below the workbench 1.

Referring to fig. 2, the lifting pressure spring 66 is sleeved on the transmission screw rod 64, the transmission screw rod 64 cannot rotate, one end of the lifting pressure spring 66 props the driving block 61, and the other end props the lower surface of the workbench 1. During locking, the locking nut 65 is rotated, the driving screw 64 drives the driving block 61 to move downwards, and the driving block 61 is matched with the workbench 1 to compress the lifting pressure spring 66.

Referring to fig. 2, when the vehicle is relaxed, the operator reversely rotates the lock nut 65, and the driving block 61 automatically moves upward under the thrust of the lifting pressure spring 66, so that the driving block 61 is not manually lifted.

Referring to fig. 2, the four conical walls of the driving block 61 are respectively provided with a sliding groove 611, a sliding block 62 slides in the sliding groove 611, the cross sections of the sliding groove 611 and the sliding block 62 are both arranged in a dovetail shape, the dovetail shape guides the sliding of the sliding block 62, and the possibility that the sliding block 62 is separated from the sliding groove 611 is reduced.

Referring to fig. 2, four guide grooves 21 are formed between the upper surface and the lower surface of the carrier plate 2, and the guide grooves 21 are perpendicular to the axis of the driving block 61. One sliding groove 611 corresponds to one guide groove 21, and the projection of the sliding groove 611 on the bearing plate 2 is arranged in line with the corresponding guide groove 21.

Referring to fig. 2, one driving arm 63 corresponds to one sliding block 62 and one unit template 4, and the unit template 4 is positioned above the loading plate 2. The bottom ends of the driving arms 63 are fixedly connected to the corresponding sliding blocks 62, and the top ends of the driving arms 63 pass through the corresponding guide grooves 21 and are fixedly connected to the corresponding unit templates 4.

Referring to fig. 2, after the mold core 10 is placed between the four unit mold plates 4, the driving block 61 moves downward, the sliding block 62 slides in the sliding groove 611, and the four sliding blocks 62 converge toward the vertex of the driving block 61. The sliding block 62 drives the driving arm 63 corresponding thereto to slide in the guiding groove 21, and the driving arm 63 drives the unit template 4 corresponding thereto to move.

Referring to fig. 2, at this time, the four unit templates 4 approach each other, the four unit templates 4 sequentially surround end to form a cavity with a rectangular cross section, the mold core 10 just fills the cavity, meanwhile, the unit templates 4 apply a clamping force to the mold core 10, and the four unit templates 4 cooperate to clamp the mold core 10.

Referring to fig. 2, conversely, when the driving block 61 moves upward, the four unit mold plates 4 are moved away from each other, thereby relaxing the mold core 10. At this moment, the operator can directly change the mold core 10, the mold core 10 is not affected when being changed, and the changing process is more convenient.

Referring to fig. 2, the bearing plate 2 is further provided with a limiting assembly for limiting the separation of the unit templates 4 from the bearing plate 2, and one limiting assembly corresponds to one unit template 4. The limiting assembly comprises two limiting blocks 7, the two limiting blocks 7 are fixedly connected to one side, back to the mold core 10, of the unit mold plate 4, and the two limiting blocks 7 are symmetrically arranged relative to the guide grooves 21 corresponding to the unit mold plate 4 where the two limiting blocks are located.

Referring to fig. 2, the upper surface of the bearing plate 2 is provided with a limiting groove 22 for the limiting block 7 to slide, one limiting block 7 corresponds to one limiting groove 22, the limiting groove 22 is parallel to the corresponding guide groove 21, and the longitudinal sections of the limiting block 7 and the limiting groove 22 are both in dovetail shape. The sliding fit of the dovetail-shaped limiting block 7 and the limiting groove 22 has a limiting effect on the movement of the unit template 4, and the possibility that the unit template 4 is separated from the bearing plate 2 is reduced.

Referring to fig. 2 and 3, there is a gap between the lower surface of the unit template 4 and the upper surface of the carrying plate 2, and the gap reduces the possibility that sliding friction between the unit template 4 and the carrying plate 2 will hinder the movement of the unit template 4.

Referring to fig. 3, the upper surface of the bearing plate 2 is provided with a positioning groove 23, the positioning groove 23 is used for placing the bottom of the mold core 10, and the positioning groove 23 is used for positioning the mold core 10, so that the possibility that the mold core 10 is placed inaccurately and needs the unit mold plate 4 to push the mold core 10 to realize positioning is reduced.

Referring to fig. 3, four ejection holes 24 are formed in the position of the bearing plate 2 corresponding to the bottom of the positioning slot 23, the ejection holes 24 are vertically arranged, and the four ejection holes 24 are respectively close to four top corners of the positioning slot 23. The ejection pressure spring 8 is arranged in the ejection hole 24, the ejection pressure spring 8 is tightly attached to the side wall of the ejection hole 24, and the arrangement of the ejection hole 24 is beneficial to reducing the possibility that the ejection pressure spring 8 is inclined and twisted in the compression deformation process.

Referring to fig. 3, one end of the ejection pressure spring 8 props up the lower surface of the mold core 10, and the other end props up the bottom of the ejection hole 24. The side of the unit template 4 facing the mold core 10 is integrally formed with a lower pressing block 9, the side of the lower pressing block 9 facing away from the unit template 4 is inclined downwards along the direction far away from the mold core 10, and the outer side wall of the mold core 10 is provided with a pressing groove 41 matched with the lower pressing block 9.

Referring to fig. 3, in the process that the unit mold plates 4 approach to the mold core 10 until closely attached to the mold core 10, the lower pressing blocks 9 gradually move into the pressing grooves 41, the lower pressing blocks 9 can push the mold core 10 to move downwards for a certain distance towards the downward inclined side walls, so that the mold core 10 is pushed to extrude the ejection compression springs 8, and the mold core 10 can be ejected out of the positioning grooves 23 by the ejection compression springs 8 when the mold core 10 is replaced.

The implementation principle of the die holder convenient for replacing the die core in the embodiment of the application is as follows: when the mold core 10 is replaced, an operator turns the locking nut 65 to be loose, the driving block 61 automatically moves upwards under the action of the lifting pressure spring 66, the sliding block 62 slides in the sliding groove 611, the sliding block 62 drives the unit mold plates 4 to move through the driving arm 63, the four unit mold plates 4 are mutually far away, the release of the mold core 10 is realized, the mold core 10 is ejected out by the ejection pressure spring 8, and the operator can directly replace the mold core 10. After an operator places a new mold core 10 in the positioning groove 23, the locking nut 65 is reversely rotated, the driving screw 64 drives the driving block 61 to move downwards, the sliding block 62 slides in the sliding groove 611, four sliding blocks 62 on the driving block 61 converge towards the conical top, the sliding block 62 drives the unit mold plates 4 to be close to each other through the driving arm 63, the four unit mold plates 4 are close to each other, the inclined planes on the lower pressing block 9 are matched with the pressing groove 41, the mold core 10 can be pressed downwards, the mold core 10 can be embedded into the positioning groove 23 by one section of depth, the ejection pressure spring 8 is pressed into the ejection hole 24 by the mold core 10, and when the four unit mold plates 4 are sequentially attached end to end, the mold core 10 is just clamped.

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 (8)

1. The utility model provides a conveniently change die holder of mold core which characterized in that: including workstation (1) and loading board (2), loading board (2) level sets up and is located the top of workstation (1), be connected with a plurality of support column (3) between loading board (2) and workstation (1), be equipped with four unit template (4) on loading board (2), four unit template (4) end to end enclose in proper order and close out the cavity that is used for placing mold core (10), still be equipped with on workstation (1) and be used for driving the actuating mechanism that four unit template (4) are close to each other or keep away from.

2. The die holder facilitating die core replacement according to claim 1, wherein: the bearing plate (2) is provided with guide grooves (21) along the movement direction of the unit templates (4), one unit template (4) corresponds to one guide groove (21), the driving mechanism comprises a driving block (61) in a quadrangular frustum shape, the conical tip of the driving block (61) faces the bearing plate (2), four conical walls of the driving block (61) are respectively provided with a sliding groove (611), one sliding groove (611) corresponds to one guide groove (21), the projection of the sliding groove (611) on the bearing plate (2) and the guide groove (21) are arranged in a collinear way, a sliding block (62) slides in the sliding groove (611), the cross sections of the sliding block (62) and the sliding groove (611) are both arranged in a dovetail shape, the unit templates (4) are connected with driving arms (63), and the driving arms (63) penetrate through the corresponding guide grooves (21) and are connected with the corresponding sliding blocks (62), be connected with transmission lead screw (64) of vertical setting on drive block (61), the bottom of transmission lead screw (64) slides and passes workstation (1), and threaded connection has lock nut (65) that are used for conflicting workstation (1) lower surface on transmission lead screw (64) that is located workstation (1) below, still be equipped with on loading board (2) and be used for restricting the spacing subassembly that unit template (4) and loading board (2) break away from.

3. The die holder facilitating die core replacement according to claim 2, wherein: the cover is equipped with lifting pressure spring (66) on transmission lead screw (64), the one end shore driving block (61) of lifting pressure spring (66), the upper surface of other end shore workstation (1).

4. The die holder facilitating die core replacement according to claim 2, wherein: a spacing subassembly corresponds a unit template (4), spacing subassembly is including connecting stopper (7) on unit template (4), it has spacing groove (22) that supplies stopper (7) to slide to open on loading board (2), spacing groove (22) are on a parallel with guide way (21), the longitudinal section of stopper (7) and spacing groove (22) is the dovetail setting.

5. The die holder facilitating die core replacement according to claim 1, wherein: and the upper surface of the bearing plate (2) is provided with a positioning groove (23) for placing the bottom of the mold core (10).

6. The die holder facilitating die core replacement according to claim 1, wherein: and a gap is reserved between the lower surface of the unit template (4) and the upper surface of the bearing plate (2).

7. The die holder facilitating die core replacement of claim 5, wherein: an ejection pressure spring (8) is supported between the mold core (10) and the bottom of the positioning groove (23), a lower pressing block (9) is fixedly connected to one side, facing the mold core (10), of the unit mold plate (4), one side, facing away from the unit mold plate (4), of the lower pressing block (9) inclines downwards along the direction away from the mold core (10), and a pressing groove (41) matched with the lower pressing block (9) is formed in the outer side wall of the mold core (10).

8. The die holder facilitating die core replacement of claim 7, wherein: an ejection hole (24) is formed in the position, corresponding to the bottom of the positioning groove (23), of the bearing plate (2), the ejection compression spring (8) is located in the ejection hole (24), and the ejection compression spring (8) is tightly attached to the side wall of the ejection hole (24).

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