CN220180006U

CN220180006U - Injection mold

Info

Publication number: CN220180006U
Application number: CN202321382219.3U
Authority: CN
Inventors: 杨伟清; 陈卫进; 方徽; 丁雷春; 杨明媚
Original assignee: Shyahsin Packaging China Co Ltd
Current assignee: Shyahsin Packaging China Co Ltd
Priority date: 2023-06-01
Filing date: 2023-06-01
Publication date: 2023-12-15
Anticipated expiration: 2033-06-01

Abstract

The utility model relates to an injection mold, which comprises a transmission assembly, a transmission disc, a wear-resistant assembly, a connecting assembly and at least two sliding blocks, wherein grooves are formed in each sliding block, the at least two sliding blocks comprise a first sliding block and a second sliding block, the first sliding block is internally provided with a first groove, the second sliding block is internally provided with a second groove, when the first groove and the second groove are matched into a product injection molding cavity during mold closing, the transmission assembly is connected with the transmission disc, the wear-resistant assembly is arranged on the transmission disc and can rotate relative to the wear-resistant assembly, a guide groove is formed in the wear-resistant assembly, the connecting assembly is slidably arranged in the guide groove, the first end of the connecting assembly is connected with the sliding block, and the second end of the connecting assembly is connected with the transmission disc. The sliding block in the die slides along the arc track to complete the die closing and opening actions, so that arc bristles cannot be scratched or pulled in the die opening process of the sliding block, and the qualification rate of products is improved.

Description

Injection mold

Technical Field

The utility model relates to a mold technology, in particular to a mold for injection molding twisted bristles.

Background

The existing brush hair is generally in a straight prism brush hair structure, namely the shape of the brush hair is linear, and a mould adopted in the production of the linear brush hair is formed by linearly sliding a plurality of sliding blocks to open and close the mould. In order to achieve better cosmetic effect, each manufacturer pushes out the brush hair with a twisted structure in a dispute way, because the surface of the twisted brush hair is provided with a twisted cambered surface, the twisted brush hair is easily pulled by using the traditional mould with the linear sliding block, so that the brush hair is unqualified, the product qualification rate is low, and the resource waste is caused.

Disclosure of Invention

In order to overcome the defects, the utility model provides the injection mold, and the sliding block in the mold slides along the arc track to complete the mold closing and opening actions, so that arc bristles cannot be scratched or pulled in the mold opening process of the sliding block, and the qualification rate of products is improved.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model provides a mould for injection molding, includes drive assembly, drive plate, wear-resisting subassembly, coupling assembling and two at least sliders, every all be equipped with the recess in the slider, at least two the slider include first slider and with the adjacent second slider of first slider, be equipped with first recess in the first slider, be equipped with the second recess in the second slider, first recess with the second recess spells into the shaping chamber of product injection molding when the compound die, occupy the target space when the compound die, first slider with the second slider is when the compound die with the target space is apart from the motion, drive assembly connect in the drive plate, wear-resisting subassembly install in on the drive plate just the drive plate can rotate for wear-resisting subassembly, be equipped with the spread groove in the wear-resisting subassembly, coupling assembling slidably arranges in the spread groove, coupling assembling's first end connect in the slider, coupling assembling's second end connect in the drive plate, coupling assembling is used for driving the drive plate along the spread groove.

Optionally, the guide slot is provided with an arc hole, the connecting component slides along the arc in the guide slot, so that the first sliding block and the second sliding block do separation movement with the target space during mold opening, the first sliding block occupies an ith space, the second sliding block occupies a jth space, and the ith space and the jth space are separated from the target space during mold opening movement.

Optionally, the wear-resisting subassembly includes fixed connection's first wear-resisting piece and second wear-resisting piece, be equipped with first arc hole in the first wear-resisting piece, be equipped with the second arc hole in the second wear-resisting piece, coupling assembling slidable arranges in first arc hole with in the second arc hole.

Optionally, the coupling assembling includes first connecting block, second connecting block and driving pin, first connecting block connect in the slider, the both ends of second connecting block connect respectively in first connecting block and driving pin, first connecting block slidingly install in the first arc downthehole, the second connecting block slidingly install in the second arc downthehole, the driving pin with the driving disk transmission is connected, in order to pass through the driving disk drives the driving pin motion.

Optionally, the driving disc is provided with an inclined hole, and the driving pin is slidably installed in the inclined hole.

Optionally, the bending radian and the bending direction of the first arc-shaped hole and the second arc-shaped hole are the same, the first arc-shaped hole and the second arc-shaped hole are bent towards the circumferential direction of the wear-resistant component, and the inclination direction of the inclined hole is opposite to the bending direction of the first arc-shaped hole.

Optionally, the first connecting block is fixedly connected to the sliding block, the first connecting block is radially and fixedly connected with the second connecting block, and the second connecting block is fixedly connected with the transmission pin.

Optionally, the first connecting block and the second connecting block are fixedly connected through screws, or the first connecting block and the second connecting block are connected through positioning pins.

Optionally, the transmission assembly comprises a gear and a rack meshed with each other, and the transmission disc is fixedly arranged on a gear shaft of the gear.

Optionally, the transmission assembly comprises a large gear and a small gear which are meshed with each other, or the transmission assembly is a worm and gear assembly, or the transmission assembly is a bevel gear fluted disc assembly.

The beneficial effects of the utility model are as follows:

1) The transmission assembly drives the sliding block to operate through the connection assembly, and the connection assembly is limited in the arc hole to operate, so that the sliding block operates along the arc track to complete the die opening and closing actions;

2) In the utility model, the transmission component is connected with the plurality of connection components through the transmission disc, and each connection component is connected with the sliding block, namely, centrifugal movement of the sliding blocks can be realized through the transmission component.

Drawings

FIG. 1 is an exploded view of a mold according to the present utility model;

FIG. 2 is a schematic diagram of a driving disk according to the present utility model;

FIG. 3 is a schematic view of the structure of a first wear block according to the present utility model;

FIG. 4 is a schematic structural view of a second wear block according to the present utility model;

FIG. 5 is a schematic view of a connecting assembly according to the present utility model;

FIG. 6 is a schematic view of a slider according to the present utility model;

FIG. 7 is a schematic view of the structure of the mold of the present utility model when the mold is opened;

FIG. 8 is a schematic view of the structure of the mold of the present utility model when the mold is closed;

in the figure: 10-transmission components, 11-gears, 12-racks, 20-transmission disks, 21-inclined holes, 30-wear-resistant components, 40-first wear-resistant blocks, 41-first arc-shaped holes, 50-second wear-resistant blocks, 51-second arc-shaped holes, 60-connection components, 61-first connection blocks, 62-second connection blocks, 63-transmission pins, 70-sliding blocks and 71-grooves.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that the terms "first," "second," and the like in the description and claims of the present utility model and in the following figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be capable of being practiced otherwise than as specifically shown or described. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Examples: as shown in fig. 1-8, an injection mold comprises a transmission assembly 10, a transmission disc 20, a wear-resistant assembly 30, a connection assembly 60 and at least two sliding blocks 70, wherein a groove 71 is formed in each sliding block, the at least two sliding blocks 70 comprise a first sliding block and a second sliding block adjacent to the first sliding block, a first groove is formed in the first sliding block, a second groove is formed in the second sliding block, the first groove and the second groove are spliced into a molding cavity for product injection molding during mold closing, the molding cavity occupies a target space during mold closing, the first sliding block and the second sliding block do separate movement with the target space during mold opening, the transmission assembly 10 is connected to the transmission disc 20, the wear-resistant assembly 30 is mounted on the transmission disc 20 and can rotate relative to the wear-resistant assembly 30, a guide groove is formed in the wear-resistant assembly 30, the connection assembly 60 is slidably arranged in the guide groove, a first end of the connection assembly 60 is connected to the sliding block 70, a second end of the connection assembly 60 is connected to the transmission disc 20, and the transmission disc 20 is used for driving the connection assembly 60 to slide along the guide groove. The transmission assembly 10 drives the transmission disc 20 to rotate, the transmission disc 20 drives the connecting assembly 60 to slide in the guide groove, the connecting assembly 60 drives the sliding block 70 to slide on the wear-resistant assembly 30 so as to finish the die opening and die closing actions of the sliding block 70, and when the die is closed, the grooves 71 on the sliding block 70 are spliced to form a product forming cavity.

As shown in fig. 1-8, the slide blocks 70 are located on the wear-resistant component 30, the wear-resistant component 30 is located on the driving disk 20, the driving disk 20 is located on the driving component 10, the slide blocks 70 can slide in arc tracks in the guide grooves of the wear-resistant component 30, as shown in fig. 8, after all the slide blocks 70 slide in arc tracks towards the axis direction of the wear-resistant component 30 and are close, the slide blocks 70 complete the mold closing action, as shown in fig. 7, after all the slide blocks 70 slide in arc tracks towards the axis direction far away from the wear-resistant component 30 and move to the preset position, the slide blocks 70 complete the mold opening action. During injection molding, the sliding blocks 70 are closed, the grooves 71 on the sliding blocks are spliced to form a molding cavity for product injection molding, the melted materials are injected into the molding cavity and then cooled and molded to form bristles on the product, and the product is taken out after the mold is opened. The sliding block in the utility model forms the appearance structure of the sliding block through linear cutting processing, then forms the groove 71 on the sliding block 70 through electric current corrosion, clamps and positions the sliding block through a clamping jig when carrying out electric current corrosion processing, and then carries out electric current corrosion on the sliding block to form the groove through electric discharge processing. In the present utility model, the slider 70 is driven by the connection assembly 60, and because the connection assembly 60 is limited to slide in the arc-shaped hole of the wear-resistant assembly 30, the moving track of the slider is arc-shaped, and the slider does not pull the arc-shaped bristles in the forming cavity during the mold opening of the movement of the arc-shaped track, thereby ensuring the structural integrity of the arc-shaped bristles and improving the qualification rate of products.

Optionally, the guide slot is provided with an arc hole, the connecting component slides along the arc in the guide slot, so that the first sliding block and the second sliding block do separation movement with the target space during mold opening, the first sliding block occupies the ith space during mold opening movement, the second sliding block occupies the jth space, and both the ith space and the jth space are separated from the target space. By phase separation, it is meant that neither the ith space nor the jth space intersects the target space.

The wear-resistant assembly 30 is provided with N sliding blocks 70 and N connecting assemblies 60, N guide grooves are formed in the wear-resistant assembly 30, wherein N is more than or equal to 2, N is an integer, and the connecting assemblies 60, the sliding blocks 70 and the guide grooves are in one-to-one correspondence; n sliding blocks 70 are uniformly distributed around the axis of the wear-resistant component 30, and after the N sliding blocks 70 are close, grooves 71 on all the sliding blocks are spliced to form a product injection molding cavity. That is, the number of the connecting components 60, the sliding blocks 70 and the arc-shaped holes is the same, during injection molding, optionally, N sliding blocks 70 are uniformly distributed around the axis of the wear-resistant component 30, and when N sliding blocks 70 are close, grooves 71 on all sliding blocks are spliced to form a molding cavity for product injection molding.

As shown in fig. 1, the wear assembly 30 includes a first wear block 40 and a second wear block 50 fixedly connected, a first arc hole 41 is provided in the first wear block 40, a second arc hole 51 is provided in the second wear block 50, and a connecting assembly 60 is slidably disposed in the first arc hole 41 and the second arc hole 51. Optionally, N first arc holes 41 are uniformly distributed around the axis of the first wear-resistant block 40, and N second arc holes 51 are uniformly distributed around the axis of the second wear-resistant block 50.

As shown in fig. 1 and 4, the connection assembly 60 includes a first connection block 61, a second connection block 62 and a driving pin 63, the first connection block 61 is connected to the slider 70, both ends of the second connection block 62 are respectively connected to the first connection block 61 and the driving pin 63, the first connection block 61 is slidably mounted in the first arc hole 41, the second connection block 62 is slidably mounted in the second arc hole 51, and the driving pin 63 is in driving connection with the driving disc 20 to drive the driving pin 63 to move through the driving disc 20.

The drive plate 20 is provided with an inclined hole 21, and the drive pin 63 is slidably mounted in the inclined hole 21. Optionally, N inclined holes 21 are uniformly distributed around the axis of the driving disc 20, in this embodiment, the wear-resistant assembly 30 includes a first wear-resistant block 40 and a second wear-resistant block 50 fixedly mounted together, the connection assembly 60 includes a first connection block 61, a second connection block 62 and a driving pin 63, which are sequentially connected and synchronously slide, the first connection block 61 is disposed in the first arc hole 41 and slides in the first arc hole 41, the second connection block 62 is disposed in the second arc hole 51 and slides in the second arc hole 51, the driving pin 63 is inserted into the inclined hole 21, and when the driving disc 20 rotates, the driving pin 63 slides in the inclined hole 21 and drives the second connection block 62 to slide along the second arc hole 51, the first connection block 61 slides along the first arc hole 41, and the driving slider 70 further performs arc sliding along the surface of the first wear-resistant plate 40.

Wherein the bending radian and the bending direction of the first arc-shaped hole 41 and the second arc-shaped hole 51 are the same, the first arc-shaped hole 41 and the second arc-shaped hole 51 bend towards the circumferential direction of the wear-resistant component 30, i.e. the first arc-shaped hole 41 and the second arc-shaped hole 51 are both opened along the radial direction of the wear-resistant component 30 and bend towards the circumferential direction, and the first arc-shaped hole 41 is communicated with the second arc-shaped hole 51; the inclined direction of the inclined hole 21 is opposite to the bending direction of the first arc-shaped hole 41. The length of the first arc hole 41 is smaller than that of the second arc hole 51, namely, the first arc hole and the second arc hole are staggered in the length direction, so that the second connecting block 62 is limited by the first wear-resisting block, and the second connecting block 62 is prevented from sliding out of the upper side of the second arc hole. The bending direction of the first arc-shaped hole 41 means: the direction opposite to the convex side of the arc-shaped track line of the first arc-shaped holes 41 is, as shown in fig. 1, all the bending directions of the first arc-shaped holes 41 are clockwise, and the bending direction of the second arc-shaped holes 51 is also clockwise, and the inclination direction of the inclined holes 21 refers to: the distal end of the inclined hole (i.e., the end far from the axis of the driving disc 20) is located at a position opposite to the proximal end of the inclined hole (i.e., the end near the axis of the driving disc 20), as shown in fig. 1, the inclined direction of the inclined hole 21 is counterclockwise, the directions of the first arc hole 41, the second arc hole 51 and the inclined hole 21 are all opposite positions after the mold is assembled, in this embodiment, the first arc hole 41 and the second arc hole 51 are bent in the clockwise direction, the inclined hole 21 is inclined in the counterclockwise direction, in another embodiment, the first arc hole 41 and the second arc hole 51 are bent in the counterclockwise direction, and the inclined hole 21 is inclined in the clockwise direction, so that when the driving pin 63 slides in the inclined hole, the slide block 70 can be driven to perform the arc motion to complete the mold opening or closing action.

The second wear-resistant block 50 is provided with a containing cavity, the first wear-resistant block 40 is arranged in the containing cavity, and the first wear-resistant block 40 and the second wear-resistant block 50 are coaxially arranged. As shown in fig. 1-4, the driving disc 20, the first wear-resistant block 40 and the second wear-resistant block 50 are all in disc-shaped structures, the diameter of the first wear-resistant block 40 is smaller than that of the second wear-resistant block 50, the second wear-resistant block 50 is provided with a containing cavity which is concentrically arranged with the first wear-resistant block 40, the diameter of the containing cavity is slightly larger than that of the first wear-resistant block 40, the first wear-resistant block 40 is installed in the containing cavity, the first wear-resistant block 40 and the second wear-resistant block 50 can be fixedly installed together through bolts, the first arc-shaped holes 41 and the second arc-shaped holes 51 are in one-to-one correspondence, and the corresponding first arc-shaped holes 41 are located right above the second arc-shaped holes 51. As shown in fig. 3, all the first arc holes 41 are entirely identical in bending direction, and the first arc holes 41 are bent in a clockwise direction, as shown in fig. 4, all the second arc holes 51 are identical in bending direction to the first arc holes 41.

Alternatively, the first connecting block 61 is fixedly connected to the sliding block 70, and the first connecting block 61 and the second connecting block 62 are fixedly connected in a radial direction, which means that the first connecting block 61 and the second connecting block 62 run synchronously in a horizontal direction, and in order to achieve synchronous horizontal sliding of the first connecting block 61 and the second connecting block 62, the first connecting block 61 and the second connecting block 62 can be only fixed in a radial direction, or can be directly welded, and the second connecting block 62 is fixedly connected with the transmission pin 63.

In an embodiment, the second connection block 62 and the driving pin 63 are integrally formed, and the first connection block 61 and the second connection block 62 are fixedly connected by a screw, or the first connection block 61 and the second connection block 62 are connected by a positioning pin, so that the overall operation consistency of the connection assembly 60 is achieved.

The driving assembly 10 is used for driving the driving disc 20 to rotate, and the type of the driving assembly 10 is not limited, and alternatively, as shown in fig. 1, 7 and 8, the driving assembly 10 includes a gear 11 and a rack 12 meshed with each other, and the driving disc 20 is fixedly mounted on a gear shaft of the gear 11. The gear shaft of the gear 11 is rotatably inserted into the wear-resistant assembly 30, the gear 11 is driven by the rack 12 to rotate, the transmission disc 20 is driven by the gear 11 to rotate, the first wear-resistant block 40 and the second wear-resistant block 50 are fixed, the transmission disc 20 drives the transmission pin 63 to slide through the inclined hole 21, the transmission pin 63 drives the second connecting block 62 to slide along the second arc-shaped hole 51, the first connecting block 61 slides along the first arc-shaped hole 41, and the first connecting block 61 drives the sliding block 70 to perform arc-shaped sliding to complete die opening and closing operations.

Alternatively, the transmission assembly 10 includes intermeshing large and small gears, or the transmission assembly 10 is a worm gear assembly, or the transmission assembly 10 is a bevel gear plate assembly. The transmission assembly 10 is also connected with a power assembly, and the power assembly is utilized to drive the transmission assembly to operate, wherein the power assembly can be a motor speed reducer unit, a linear module and the like.

The working principle of the utility model is as follows: the power assembly drives the rack 12 to move, the rack 12 drives the gear 11 to rotate, the gear 11 drives the driving disc 20 to rotate, the inclined hole 21 on the driving disc 20 drives the driving pin 63 to move, the driving pin 63 drives the second connecting block 62 to slide in the second arc-shaped hole 51, the second connecting block 62 drives the first connecting block 61 to slide in the first arc-shaped hole 41, and the first connecting block 61 drives the sliding block 70 to slide in an arc shape along the surface of the wear-resistant assembly 30 so as to complete the die assembly or die opening action of the sliding block. In this embodiment, as shown in fig. 7, when the gear 11 rotates clockwise, all the sliders 70 are driven to move in a direction away from the axis of the mold at the same time, so as to complete the mold opening operation; as shown in fig. 8, when the gear 11 rotates counterclockwise, all the sliders 70 are driven to move toward the axial center of the mold at the same time, and the mold opening operation is completed.

It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a mould for injection moulding which characterized in that: including drive assembly (10), drive disk (20), wear-resisting subassembly (30), coupling assembling (60) and two at least sliders (70), every all be equipped with recess (71) in the slider, at least two slider (70) include first slider and with the adjacent second slider of first slider, be equipped with first recess in the first slider, be equipped with the second recess in the second slider, first recess with the second recess spell into the shaping chamber of product moulding plastics when the compound die, the shaping chamber occupies the target space when the compound die, first slider with the second slider is in the die sinking with the target space is apart from the motion, drive assembly (10) connect in drive disk (20), wear-resisting subassembly (30) install in on drive disk (20) just drive disk (20) can rotate for wear-resisting subassembly (30), be equipped with the guide way in second slider (30), coupling assembling (60) slidable place in the guide way, coupling assembling (60) with the second slider (60) are used for connecting in drive disk (20) the coupling assembling (60).

2. The injection mold according to claim 1, wherein: the guide groove is provided with an arc hole, the connecting assembly slides along the arc in the guide groove, so that the first sliding block and the second sliding block do separation movement with the target space during mold opening, the first sliding block and the second sliding block occupy the ith space during mold opening movement, the second sliding block occupies the jth space, and the ith space and the jth space are separated from the target space.

3. The injection mold according to claim 2, wherein: the wear-resisting subassembly (30) is including fixed connection's first wear-resisting piece (40) and second wear-resisting piece (50), be equipped with first arc hole (41) in first wear-resisting piece (40), be equipped with second arc hole (51) in second wear-resisting piece (50), coupling assembling (60) slidable place in first arc hole (41) with in second arc hole (51).

4. The injection mold according to claim 3, wherein: the connecting assembly (60) comprises a first connecting block (61), a second connecting block (62) and a transmission pin (63), wherein the first connecting block (61) is connected to the sliding block (70), two ends of the second connecting block (62) are respectively connected to the first connecting block (61) and the transmission pin (63), the first connecting block (61) is slidably mounted in the first arc-shaped hole (41), the second connecting block (62) is slidably mounted in the second arc-shaped hole (51), and the transmission pin (63) is in transmission connection with the transmission disc (20) so as to drive the transmission pin (63) to move through the transmission disc (20).

5. The injection mold according to claim 4, wherein: the transmission disc (20) is provided with an inclined hole (21), and the transmission pin (63) is slidably arranged in the inclined hole (21).

6. The injection mold according to claim 5, wherein: the bending radian and the bending direction of the first arc-shaped hole (41) and the second arc-shaped hole (51) are the same, the first arc-shaped hole (41) and the second arc-shaped hole (51) are bent towards the circumferential direction of the wear-resistant assembly (30), and the inclination direction of the inclined hole (21) is opposite to the bending direction of the first arc-shaped hole (41).

7. The injection mold according to claim 4, wherein: the first connecting block (61) is fixedly connected to the sliding block (70), the first connecting block (61) is radially and fixedly connected with the second connecting block (62), and the second connecting block (62) is fixedly connected with the transmission pin (63).

8. The injection mold according to claim 7, wherein: the first connecting block (61) and the second connecting block (62) are fixedly connected through screws, or the first connecting block (61) and the second connecting block (62) are connected through positioning pins.

9. The mold for injection molding according to any one of claims 1 to 8, wherein: the transmission assembly (10) comprises a gear (11) and a rack (12) which are meshed with each other, and the transmission disc (20) is fixedly arranged on a gear shaft of the gear (11).

10. The mold for injection molding according to any one of claims 1 to 8, wherein: the transmission assembly (10) comprises a large gear and a small gear which are meshed with each other, or the transmission assembly (10) is a worm and gear assembly, or the transmission assembly (10) is a bevel gear fluted disc assembly.