CN216465841U

CN216465841U - Mold core fixing device of plastic injection mold

Info

Publication number: CN216465841U
Application number: CN202123067425.9U
Authority: CN
Inventors: 夏正春
Original assignee: Qingdao Sanpin Technology Co ltd
Current assignee: Qingdao Sanpin Technology Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-05-10
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a core fixing device of plastic injection mold, which belongs to the technical field of fixing devices, and comprises a core body and a mold body, wherein a connecting seat is fixedly installed at the top end of the core body, the top end of the connecting seat is connected with an inserting seat, the top end of the inserting seat is fixedly connected with a permanent magnet, a slot which is inserted into the inserting seat is arranged at the bottom end of the mold body, an inner top wall of the slot is connected with an electromagnet which is matched with the permanent magnet, two side surfaces of the connecting seat are respectively provided with a fixed slot plate with a movable position, an adjusting device for adjusting the fixed slot plate is installed at the bottom end of the mold body, and the adjusting device comprises a linkage plate and a screw rod; the bottom of the die body is provided with a connecting groove, the linkage plate is fixedly connected to the top end of the fixed groove plate, and the linkage plate is connected with the connecting groove in a sliding mode along the length direction of the connecting groove. This plastics injection mold's core fixing device connects stably, and makes things convenient for follow-up dismouting.

Description

Mold core fixing device of plastic injection mold

Technical Field

The utility model belongs to the technical field of fixing device, concretely relates to plastics injection mold's core fixing device.

Background

The operation of the existing core fixing device of a part of plastic injection molds is more complicated and slower when the cores are disassembled and assembled, and the labor intensity of operators is higher when the cores are disassembled and assembled, so that the use is inconvenient.

The Chinese patent document discloses a core fixing device of a plastic injection mold (No. CN212097299U), the structure of which comprises a movable template, wherein a built-in groove, a sealing plug and a core are arranged on the movable template, the built-in groove is positioned in the movable template, the sealing plug is embedded in the built-in groove, the core is fixedly connected to the bottom of the movable template, a thread groove is arranged in the core, and a fixing bolt is arranged in the built-in groove. The advantages are that: the speed of core dismouting time has been accelerated, the intensity of labour of operating personnel when the dismouting core has been reduced, the stability of core when using has been improved. But has the following disadvantages: wholly adopt fixing bolt to connect, during the dismouting, at first will take off the sealing plug spiral of four fixing bolt tops in proper order, then take off four fixing bolt spirals in proper order, and eight times of repeated spiral operations need be carried out to whole process promptly, complex operation, and the installation rate still exists the headroom, and loses sealing plug and fixing bolt at the in-process of dismouting easily.

Therefore, in view of the current situation, there is a strong need to design and produce a core fixing device of a plastic injection mold to meet the needs of practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plastics injection mold's core fixing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a plastics injection mold's core fixing device, includes core body and mould body, the top fixed mounting of core body has the connecting seat, the top of connecting seat is connected with the socket, the top fixedly connected with permanent magnet of socket, the slot of pegging graft with the socket is seted up to the bottom of mould body, and the inside roof of slot is connected with the electro-magnet that matches with the permanent magnet, the both sides face of connecting seat all is provided with the mobilizable fixed frid in position, adjusting device who is used for adjusting the fixed frid is installed to the bottom of mould body, adjusting device includes linkage board and screw rod.

In a further embodiment, the bottom of the die body is provided with a connecting groove, the linkage plate is fixedly connected to the top end of the fixed groove plate, the linkage plate is connected with the connecting groove in a sliding mode along the length direction of the connecting groove, the linkage plate is provided with a threaded through hole matched with the screw rod and is in threaded connection with the threaded through hole, the side face of the die body is provided with a rotating through hole communicated with the connecting groove, the screw rod is connected with the die body in a rotating mode, and one end, extending to the side face of the die body, of the screw rod penetrating through the rotating through hole is connected with an adjusting knob.

In a further embodiment, the adjacent side surfaces of the two fixed groove plates are provided with fixed grooves matched with the connecting seats, and the connecting seats are fixedly connected between the two fixed groove plates.

In a further embodiment, the other two side surfaces of the connecting seat are connected with clamping blocks, and the die body is clamped between the two clamping blocks.

In a further embodiment, the vertical inner wall of the connecting groove of the die body is connected with a bearing, and one end of the screw rod, which is positioned in the connecting groove of the die body, is rotatably connected with the die body through the bearing.

In a further embodiment, a wiring groove for installing a wire of the electromagnet is formed in the die body, and a plug board matched with the electromagnet is arranged on one side face of the die body.

In a further embodiment, the side surfaces of the clamping blocks, which are contacted with the connecting seat, are respectively bonded with an anti-slip pad, and the outer surface of the anti-slip pad is provided with an anti-slip bulge.

The utility model discloses a technological effect and advantage: the core fixing device of the plastic injection mold has the advantages that due to the arrangement of the electromagnet, the permanent magnet, the plug socket and the plug board, the electromagnet can be connected with the permanent magnet in an attraction manner when being electrified, the core body can be fixed at the bottom end of the mold body, when the core body is disassembled, the power supply of the electromagnet is disconnected, the attraction force between the electromagnet and the permanent magnet disappears, and the core body is convenient to disassemble; the two fixing groove plates are arranged, the connecting seat can be clamped and connected, and the stability of the connecting core body and the die body is further improved; due to the arrangement of the linkage plate, the screw and the adjusting knob, the position of the fixed groove plate can be changed by rotating the adjusting knob, and the subsequent disassembly and assembly of the core body are facilitated; due to the arrangement of the clamping block and the protective pad, the positioning function can be realized when the mold core body is installed, and the stability between the connecting seat and the mold body can be improved; this plastics injection mold's core fixing device connects stably, and makes things convenient for follow-up dismouting.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic diagram of the explosion structure of the present invention.

In the figure: 1. a core body; 2. a mold body; 3. a connecting seat; 4. a socket; 5. a permanent magnet; 6. an electromagnet; 7. fixing the groove plate; 8. a linkage plate; 9. a screw; 10. adjusting a knob; 11. a clamping block; 12. a bearing; 13. a plugboard; 14. a non-slip mat.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

In order to fix the core body 1 and facilitate subsequent disassembly and assembly of the core body 1, as shown in fig. 1 and 2, a connecting seat 3 is fixedly welded at the top end of the core body 1, an inserting seat 4 is fixedly welded at the top end of the connecting seat 3, the inserting seat 4 is positioned at the central position of the top end of the connecting seat 3, a permanent magnet 5 is fixedly connected at the top end of the inserting seat 4, a slot inserted with the inserting seat 4 is formed at the bottom end of the mold body 2, an electromagnet 6 matched with the permanent magnet 5 is fixedly connected at the inner top wall of the slot, a wiring groove for installing a lead of the electromagnet 6 is formed in the mold body 2, insulating paint is uniformly coated on the inner wall of the wiring groove, the electromagnet 6 is connected with the permanent magnet 5 in an attracting mode when being powered on, the attracting force between the electromagnet 6 and the permanent magnet 5 disappears when the electromagnet is powered off, a plug-in plate 13 matched with the electromagnet 6 is fixedly installed on one side surface of the mold body 2 through screws, the top end of the connecting seat 3 is in contact with the bottom end of the die body 2 in an attaching manner.

In order to improve the stability of the connection between the core body 1 and the mold body 2 and facilitate the subsequent disassembly and assembly of the core body 1, as shown in fig. 1, fig. 2 and fig. 3, the two side surfaces of the connecting seat 3 are respectively provided with a fixed groove plate 7 with a movable position, the adjacent side surfaces of the two fixed groove plates 7 are respectively provided with a fixed groove matched with the connecting seat 3, the connecting seat 3 is fixedly connected between the two fixed groove plates 7, the bottom end of the mold body 2 is provided with an adjusting device for adjusting the fixed groove plates 7, the adjusting devices of the two fixed groove plates 7 are distributed in a mirror image manner about the central axis of the mold body 2, the adjusting device comprises a linkage plate 8 and a screw 9, the bottom end of the mold body 2 is provided with a connecting groove, the linkage plate 8 is fixedly welded at the top end of the fixed groove plates 7, the linkage plate 8 is connected with the connecting groove in a sliding manner along the length direction of the connecting groove, the linkage plate 8 is provided with a threaded through hole matched with the screw 9 and is in a threaded connection therewith, the vertical inner wall of the spread groove of the mould body 2 is connected with a bearing 12, one end of the screw rod 9, which is positioned in the spread groove of the mould body 2, is rotatably connected with the mould body 2 through the bearing 12, a rotating through hole communicated with the spread groove is arranged on the side surface of the mould body 2, the screw rod 9 is rotatably connected with the mould body 2 through the rotating through hole, and the screw rod 9 is fixedly welded with one end, which extends to the side surface of the mould body 2, of the rotating through hole, and is provided with an adjusting knob 10.

In order to assist the positioning when installing the core body 1 and to assist in improving the stability when the core body 1 is connected, as shown in fig. 1 and 3, the fixture blocks 11 are welded on the other two side surfaces of the connecting seat 3, the mold body 2 is clamped between the two fixture blocks 11, the non-slip mat 14 is bonded on the side surfaces of the fixture blocks 11 contacting with the connecting seat 3, and the outer surface of the non-slip mat 14 is provided with a non-slip bulge.

According to the working principle, when the core body 1 of the plastic injection mold is installed, firstly, an adjusting knob 10 is rotated to rotate a screw rod 9, the screw rod 9 rotates to enable a linkage plate 8 to move towards the side face of the mold body 2, a fixed groove plate 7 moves synchronously along with the linkage plate 8, then, an inserting seat 4 at the top end of a connecting seat 3 is inserted into an inserting groove of the mold body 2, the mold body 2 is clamped and connected between two clamping blocks 11, then, the adjusting knob 10 is rotated reversely, the linkage plate 8 drives the fixed groove plate 7 to move towards the connecting seat 3 until the two fixed groove plates 7 fix the core body 1 at the bottom end of the mold body 2, finally, an external power supply is communicated with an inserting plate 13 of an electromagnet 6, and the electromagnet 6 is connected with a permanent magnet 5 in an attracting mode after being electrified; when the core body 1 is disassembled, the adjusting knob 10 is rotated to separate the two fixed groove plates 7 from the core body 1, then the core body 1 is supported by hands from the lower part, then the power supply of the electromagnet 6 is disconnected, and finally the core body 1 is pulled downwards.

Finally, it should be noted that: the foregoing is merely a preferred embodiment of the present invention and is not intended to limit the scope of the invention.

Claims

1. The utility model provides a plastics injection mold's core fixing device, includes core body (1) and mould body (2), its characterized in that: the mold core comprises a mold core body (1), wherein a connecting seat (3) is fixedly mounted at the top end of the mold core body (1), a plug socket (4) is connected to the top end of the connecting seat (3), a permanent magnet (5) is fixedly connected to the top end of the plug socket (4), a slot which is plugged with the plug socket (4) is formed in the bottom end of the mold body (2), an electromagnet (6) which is matched with the permanent magnet (5) is connected to the inner top wall of the slot, two side faces of the connecting seat (3) are provided with fixed groove plates (7) with movable positions, an adjusting device used for adjusting the fixed groove plates (7) is mounted at the bottom end of the mold body (2), and the adjusting device comprises a linkage plate (8) and a screw (9).

2. The core fixing device of a plastic injection mold according to claim 1, wherein: the bottom of mould body (2) has seted up the spread groove, linkage board (8) fixed connection is on the top of fixed frid (7), and linkage board (8) along the length direction of spread groove with it sliding connection, the screw thread through-hole that matches with screw rod (9) and threaded connection with it are seted up in linkage board (8), the rotation through-hole that communicates with the spread groove is seted up to the side of mould body (2), screw rod (9) rotate with mould body (2) and are connected, and screw rod (9) run through the one end that rotates the through-hole and extend to the side of mould body (2) and be connected with adjust knob (10).

3. The core fixing device of a plastic injection mold according to claim 1, wherein: the side surfaces adjacent to the two fixing groove plates (7) are provided with fixing grooves matched with the connecting seat (3), and the connecting seat (3) is fixedly connected between the two fixing groove plates (7).

4. The core fixing device of a plastic injection mold according to claim 1, wherein: the other two side surfaces of the connecting seat (3) are connected with clamping blocks (11), and the die body (2) is clamped between the two clamping blocks (11).

5. The core fixing device of a plastic injection mold according to claim 2, wherein: the vertical inner wall of the connecting groove of the die body (2) is connected with a bearing (12), and one end of the screw rod (9) located in the connecting groove of the die body (2) is rotatably connected with the die body (2) through the bearing (12).

6. The core fixing device of a plastic injection mold according to claim 1, wherein: a wiring groove for installing a wire of the electromagnet (6) is formed in the die body (2), and a plug board (13) matched with the electromagnet (6) is arranged on one side face of the die body (2).

7. The core fixing apparatus of a plastic injection mold according to claim 4, wherein: the side face, contacted with the connecting seat (3), of the clamping block (11) is bonded with an anti-slip pad (14), and the outer surface of the anti-slip pad (14) is provided with an anti-slip bulge.