CN217434788U

CN217434788U - Prevent mould for plastic products of burr

Info

Publication number: CN217434788U
Application number: CN202221202039.8U
Authority: CN
Inventors: 张亚
Original assignee: Suzhou Na Kehua Mould Co ltd
Current assignee: Suzhou Na Kehua Mould Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-09-16
Anticipated expiration: 2032-05-18

Abstract

The utility model discloses a prevent mould for plastic products of burr, including bed die, last mould and cushion, the mould is installed at the top of bed die. The utility model discloses a fly leaf, pressure spring and electro-magnet, when carrying out production, go up the mould and remove the extrusion movable rod downwards, the movable rod removes the extrusion fly leaf downwards and removes downwards, the fly leaf removes the pressure spring who extrudes the bottom installation downwards, just can trigger the shift knob of bottom installation along with the fly leaf removes the connecting rod downwards, just can give the electro-magnet circular telegram through the power supply module that sets up of electric wire after pressing shift knob, produce magnetic force and can tightly adsorb the iron plate of installing in last grinding apparatus both sides after the electro-magnet circular telegram, thereby play the effect of reinforcing die locking power, simultaneously in good back of product production, go up mould rebound, pressure spring also can promote the fly leaf rebound, at this moment the connecting rod just can stop pressing shift knob, the magnetic force of electro-magnet just can disappear, also can avoid electric power extravagant simultaneously.

Description

Prevent mould for plastic products of burr

Technical Field

The utility model relates to a plastic mold technical field specifically is a prevent mould for plastic products of burr.

Background

A plastic mold is a tool which is matched with a plastic molding machine in the plastic processing industry and gives a complete configuration and accurate dimension to a plastic product. Because of the variety and processing method of plastic, and the structure of plastic molding machines and plastic products are various, the variety and structure of plastic molds are also various. The product processed by the existing plastic mould is prone to generate burrs due to the reasons that the mould is not locked or air is contained inside the mould, and the like, so that a lot of inconvenience is easily caused.

The plastic mould in the prior art has the defects that:

patent document CN215036142U discloses a mould that plastic products were polished with area burr, "including organism, grinding device, fixing device, the organism is inside and grinding device surface swing joint, the organism inside and fixing device surface swing joint, grinding device includes first motor, first motor one side is provided with first threaded rod, first threaded rod surface swing joint has first nut, first nut top fixedly connected with connecting rod, connecting rod top fixedly connected with movable block. This plastic products is with mould of taking burr to polish, when plastic products surface irregularity, the second motor drives transmission shaft and bevel gear and rotates, bevel gear and the meshing of bevel gear two, bevel gear two drives the second threaded rod and rotates with the second nut, make the emery wheel carry out elevating movement, the burr to plastic products surface irregularity is cleared up, the quality of emery wheel clearance burr has been improved, reach the effect that improves plastic products burr efficiency of polishing, but above-mentioned device is in the use, mainly be directed at the product that has the burr that has processed is polished and is handled, can't be when production with the removal burr of pertinence.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent mould for plastic products of burr to the problem of the just pertinence deburring of production that provides in solving above-mentioned background art.

In order to achieve the purpose, the utility model provides the following technical scheme, a mold for plastic products for preventing burrs comprises a lower mold, an upper mold and cushion blocks, wherein the upper mold is arranged at the top of the lower mold, and a group of cushion blocks are arranged at the bottom of the lower mold;

electromagnets are installed on two sides of the lower die, and a plurality of iron blocks are installed on the inner walls of the electromagnets;

an iron box is installed at the top of the iron block, and one side of the iron box is installed on one side of the upper die.

Preferably, the bottom of the upper die is provided with fixing holes all around, the inner side of the bottom of the upper die is provided with a cavity, the middle of the bottom of the upper die is provided with a feeding hole, and the top of the cavity is provided with an exhaust pipe.

Preferably, the bottom plate is installed to the bottom of cushion, and the backing plate is installed at the top of bottom plate, and the restriction pole is all installed in the four corners at backing plate top, and restriction pole surface mounting has pressure spring, and the fly leaf is installed at pressure spring's top, and two sets of movable rods are installed at the fly leaf top.

Preferably, the fixed rods are installed on the periphery of the top of the lower die, the outer surfaces of the fixed rods are installed on the inner walls of the fixed holes, two groups of hole grooves are formed in the inner side of the top of the lower die, the inner walls of the hole grooves are installed on the outer surfaces of the movable rods, and a die core is installed in the middle of the lower die.

Preferably, the mid-mounting of fly leaf bottom has the connecting rod, and shift knob is installed to the bottom of connecting rod, and shift knob installs a set of power supply module through the electric wire, and power supply module passes through the electric wire and installs in the bottom of electro-magnet.

Preferably, the bottom of the inner wall of the exhaust pipe is provided with a limiting opening, the inner wall of the limiting opening is provided with a trapezoidal block, and the top of the trapezoidal block is provided with a connecting shaft.

Preferably, the outer surface of the connecting shaft is provided with a return spring, the bottom of the return spring is provided with a fixing plate, the top of the inner wall of the exhaust pipe is provided with a one-way valve groove, and the inner wall of the one-way valve groove is provided with a one-way valve ball.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a fly leaf, pressure spring and electro-magnet, when carrying out production, go up the mould and remove the extrusion movable rod downwards, the movable rod removes the extrusion fly leaf downwards and removes downwards, the fly leaf removes the pressure spring who extrudes the bottom installation downwards, just can trigger the shift knob of bottom installation along with the fly leaf removes the connecting rod downwards, just can give the electro-magnet circular telegram through the power supply module that sets up of electric wire after pressing shift knob, produce magnetic force and can tightly adsorb the iron plate of installing in last mould both sides after the electro-magnet circular telegram, thereby play the effect of reinforcing die locking power, simultaneously in good back of product production, go up mould rebound, pressure spring also can promote the fly leaf rebound, at this moment the connecting rod just can stop pressing shift knob, the magnetic force of electro-magnet just can disappear, also can avoid electric power extravagant simultaneously.

2. The utility model discloses a trapezoidal piece, reset spring and check valve ball, after the material of moulding plastics injected into the die cavity through the pan feeding mouth, the air that contains in the die cavity just can be under the effect of pressure, promote the trapezoidal piece in the blast pipe, just can open one breach along with the trapezoidal piece is promoted, gas just can flow into in the blast pipe through the breach, the position in check valve groove can be flowed into to gas afterwards, flow into among the air behind the promotion check valve ball, check valve ball and trapezoidal piece can play dual airtight effect, avoid external air to enter into the die cavity, along with the air evacuation, reset spring just can push back original position with the trapezoidal piece, avoid the material of moulding plastics to plug up the blast pipe or flow into in the blast pipe.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the overall structure of the device of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is a schematic view of the cross-sectional structure of the electromagnet of the present invention.

In the figure: 1. a lower die; 2. an upper die; 3. cushion blocks; 101. an electromagnet; 102. an iron block; 103. an iron box; 201. a fixing hole; 202. a cavity; 203. a feeding port; 204. an exhaust pipe; 301. a base plate; 302. a base plate; 303. a restraining bar; 304. a pressure spring; 305. a movable plate; 306. a movable rod; 401. fixing the rod; 402. a hole groove; 403. a mold core; 501. a connecting rod; 502. a switch button; 503. a power supply component; 601. a restriction port; 602. a trapezoidal block; 603. a connecting shaft; 701. a return spring; 702. a fixing plate; 703. a one-way valve spool; 704. a check valve ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, 2 and 4, an embodiment of the present invention provides a mold for plastic products with burr prevention, including a lower mold 1, an upper mold 2 and a spacer 3, the upper mold 2 is installed on the top of the lower mold 1, a set of spacers 3 is installed on the bottom of the lower mold 1, electromagnets 101 are installed on both sides of the lower mold 1, a plurality of iron blocks 102 are installed on the inner wall of the electromagnets 101, an iron box 103 is installed on the top of the iron blocks 102, one side of the iron box 103 is installed on one side of the upper mold 2, a bottom plate 301 is installed on the bottom of the spacer 3, a backing plate 302 is installed on the top of the bottom plate 301, limiting rods 303 are installed on four corners of the top of the backing plate 302, a pressure spring 304 is installed on the outer surface of the limiting rods 303, a movable plate 305 is installed on the top of the pressure spring 304, two sets of movable rods 306 are installed on the top of the movable plate 305, fixing rods 401 are installed around the top of the lower mold 1, the outer surface of the fixed rod 401 is mounted on the inner wall of the fixed hole 201, two sets of hole grooves 402 are formed in the inner side of the top of the lower die 1, the inner walls of the hole grooves 402 are mounted on the outer surface of the movable rod 306, the middle of the lower die 1 is provided with a die core 403, the middle of the bottom of the movable plate 305 is provided with a connecting rod 501, the bottom of the connecting rod 501 is provided with a switch button 502, the switch button 502 is provided with a set of power supply components 503 through wires, the power supply components 503 are mounted on the bottom of the electromagnet 101 through wires, during production, the upper die 2 moves downwards to press the movable rod 306, the movable rod 306 moves downwards to press the movable plate 305 to move downwards, the movable plate 305 moves downwards to press the pressure spring 304 mounted at the bottom, the connecting rod 501 moves downwards along with the movable plate 305 to trigger the switch button 502 mounted at the bottom, the electromagnet 101 is powered through the power supply components 503 arranged on the wires after the switch button 502 is pressed, after the electromagnet 101 is electrified, magnetic force is generated, the iron blocks 102 arranged on two sides of the upper die 2 can be tightly adsorbed, so that the effect of enhancing the die locking force is achieved, meanwhile, after the product is produced, the upper die 2 moves upwards, the pressure spring 304 also pushes the movable plate 305 to move upwards, at the moment, the connecting rod 501 stops pressing the switch button 502, the magnetic force of the electromagnet 101 disappears, and meanwhile, the waste of electric power can be avoided;

referring to fig. 1, 2 and 3, the periphery of the bottom of the upper mold 2 is provided with fixing holes 201, the inner side of the bottom of the upper mold 2 is provided with a cavity 202, the middle part of the bottom of the upper mold 2 is provided with a feeding port 203, the top of the cavity 202 is provided with an exhaust pipe 204, the bottom of the inner wall of the exhaust pipe 204 is provided with a limiting port 601, the inner wall of the limiting port 601 is provided with a trapezoidal block 602, the top of the trapezoidal block 602 is provided with a connecting shaft 603, the outer surface of the connecting shaft 603 is provided with a return spring 701, the bottom of the return spring 701 is provided with a fixing plate 702, the top of the inner wall of the exhaust pipe 204 is provided with a one-way valve groove 703, the inner wall of the one-way valve groove 703 is provided with a one-way valve ball 704, after the injection molding material is injected into the cavity 202 through the feeding port 203, air contained in the cavity 202 pushes the trapezoidal block 602 in the exhaust pipe 204 under the action of pressure, and opens a gap as the trapezoidal block 602 is pushed, gas can flow into the exhaust pipe 204 through the gap, and then the gas can flow into the position of the one-way valve groove 703, and flows into the air after pushing the one-way valve ball 704, and the one-way valve ball 704 and the trapezoidal block 602 can play a double-sealing effect, so that the external air is prevented from entering the cavity 202, and along with air evacuation, the reset spring 701 can push the trapezoidal block 602 back to the original position, and the injection molding material is prevented from blocking the exhaust pipe 204 or flowing into the exhaust pipe 204.

The working principle is that during production, the upper mold 2 moves downwards to press the movable rod 306, the movable rod 306 moves downwards to press the movable plate 305 to move downwards, the movable plate 305 moves downwards to press the pressure spring 304 mounted at the bottom, the connecting rod 501 moves downwards along with the movable plate 305 to trigger the switch button 502 mounted at the bottom, the electromagnet 101 is electrified through the power supply component 503 arranged on an electric wire after the switch button 502 is pressed, the electromagnet 101 is electrified to generate magnetic force which can tightly adsorb the iron blocks 102 mounted at two sides of the upper mold 2, so that the effect of enhancing the mold locking force is achieved, meanwhile, after the product is produced, the upper mold 2 moves upwards, the pressure spring 304 also pushes the movable plate 305 to move upwards, the connecting rod 501 stops pressing the switch button 502, the magnetic force of the electromagnet 101 disappears, the waste of electric power can be avoided, and after the injection molding material is injected into the cavity 202 through the material inlet 203, the air that contains in the die cavity 202 just can be under the effect of pressure, promote the trapezoidal piece 602 in the blast pipe 204, just can open a breach along with trapezoidal piece 602 is promoted, gas just can flow into in the blast pipe 204 through the breach, gas can flow into the position of one-way valve groove 703 afterwards, flow into among the air after promoting one-way valve ball 704, one-way valve ball 704 and trapezoidal piece 602 can play dual airtight effect, avoid external air to enter into die cavity 202, along with the air evacuation, reset spring 701 just can push back trapezoidal piece 602 to original position, avoid the material of moulding plastics to block up blast pipe 204 or flow into in blast pipe 204.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a mould for plastic products of burr prevention, includes bed die (1), goes up mould (2) and cushion (3), its characterized in that: the top of the lower die (1) is provided with an upper die (2), and the bottom of the lower die (1) is provided with a group of cushion blocks (3);

electromagnets (101) are installed on two sides of the lower die (1), and a plurality of iron blocks (102) are installed on the inner walls of the electromagnets (101);

an iron box (103) is installed at the top of the iron block (102), and one side of the iron box (103) is installed on one side of the upper die (2).

2. The mold for a flash-resistant plastic article according to claim 1, wherein: all seted up fixed orifices (201) around the bottom of going up mould (2), gone up the inboard of mould (2) bottom and seted up die cavity (202), go up the middle part of mould (2) bottom and seted up pan feeding mouth (203), blast pipe (204) are installed at the top of die cavity (202).

3. The mold for plastic products of claim 1, characterized in that: bottom plate (301) are installed to the bottom of cushion (3), and backing plate (302) are installed at the top of bottom plate (301), and restriction pole (303) are all installed to the four corners at backing plate (302) top, and restriction pole (303) surface mounting has pressure spring (304), and fly leaf (305) are installed at the top of pressure spring (304), and two sets of movable rod (306) are installed at fly leaf (305) top.

4. The mold for a flash-resistant plastic article according to claim 1, wherein: all install dead lever (401) around lower mould (1) top, and the outer surface mounting of dead lever (401) in the inner wall of fixed orifices (201), two sets of hole grooves (402) have been seted up to the inboard at lower mould (1) top, and the inner wall of hole groove (402) installs in the surface of movable rod (306), and the mid-mounting of lower mould (1) has mould benevolence (403).

5. A mold for a flash-resistant plastic article according to claim 3, wherein: the middle part of fly leaf (305) bottom installs connecting rod (501), and shift knob (502) are installed to the bottom of connecting rod (501), and shift knob (502) are installed a set of power supply module (503) through the electric wire, and power supply module (503) are installed in the bottom of electro-magnet (101) through the electric wire.

6. The mold for a flash-proof plastic product according to claim 2, wherein: restriction mouth (601) are installed to the bottom of blast pipe (204) inner wall, and trapezoidal piece (602) are installed to the inner wall of restriction mouth (601), and connecting axle (603) are installed at the top of trapezoidal piece (602).

7. The mold for a flash-proof plastic product according to claim 6, wherein: the outer surface of the connecting shaft (603) is provided with a return spring (701), the bottom of the return spring (701) is provided with a fixing plate (702), the top of the inner wall of the exhaust pipe (204) is provided with a one-way valve groove (703), and the inner wall of the one-way valve groove (703) is provided with a one-way valve ball (704).