CN115256153A - Paint-spraying-free highlight injection-molded word plate mold polishing assembly and polishing method - Google Patents

Abstract

The invention discloses a paint-spraying-free highlight injection-molded word plate mold polishing assembly and a polishing method, wherein the paint-spraying-free highlight injection-molded word plate mold polishing assembly comprises a rough grinding part, a fine grinding part and a polishing part which are used for polishing the inner surface of a mold and are used in sequence, the paint-spraying-free highlight injection-molded word plate mold polishing assembly further comprises a driving assembly used for driving the rough grinding part, the fine grinding part or the polishing part to be attached to the inner surface of the mold for polishing, and the rough grinding part, the fine grinding part and the polishing part are detachably and fixedly connected with the driving assembly; further comprising the steps of: s1: polishing the inner surface of the mold by adopting 800-1000 meshes of oilstone; s2: adopting 1000-2000 mesh coarse sand paper to polish the inner surface of the mold; s3: polishing the inner surface of the mold by using 2000-3000-mesh fine sand paper; s4: and polishing and coloring the inner surface of the grinding tool by adopting a polishing head matched with the grinding paste. The polishing assembly and the polishing method of the paint-spraying-free highlight injection-molded word plate mold are reasonable in design, and the paint-spraying-free and highlight effect of the injection-molded word plate can be achieved.

Description

Paint-spraying-free highlight injection-molded word plate mold polishing assembly and polishing method

Technical Field

The invention relates to the technical field of injection mold production equipment, in particular to a paint-spraying-free highlight injection molding word and brand mold polishing assembly and a polishing method.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used in mass production of some parts having complex shapes. Specifically, the method comprises the steps of injecting molten plastic into a mold cavity from an injection molding machine at high pressure, and cooling and solidifying to obtain a formed product.

In order to improve the flatness of the word plate and the light reflection degree of the word plate, the three-coating and two-baking operation of the primer, the finish paint and the varnish is generally carried out after the ABS is injected, and the steps are complex in process, high in cost and easy to cause great pollution to the environment.

Among the prior art, like CN209754815U a highlight injection mold polishing grinding device, including the base, the base top is provided with a plurality of symmetric distribution's bracing piece, the bracing piece top is provided with the roof, turn right from a left side and set gradually grinding mechanism, wiper mechanism and drying mechanism in the roof bottom, the base top is provided with feeding mechanism, the base top is provided with a plurality of groups locking mechanical system, and every locking mechanical system of group corresponds grinding mechanism, wiper mechanism and drying mechanism setting respectively.

Although the grinding device can grind the die, the polished inner surface of the die is not smooth enough, so that the injection-molded word plate cannot meet the requirements of highlight and paint-free.

Therefore, there is a need for an improved painting-free high-gloss injection-molded character and plate mold polishing assembly and polishing method in the prior art.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a polishing assembly and a polishing method for a paint-free highlight injection-molded word plate mold, which can realize the paint-free and highlight effect of injection-molded word plates.

In order to realize the technical effects, the technical scheme of the invention is as follows: the utility model provides a exempt from highlight of spraying paint word tablet mould subassembly of polishing, is including being used for the mould internal surface of polishing and the corase grind piece, the fine grinding piece and the polishing piece that use in proper order, still including being used for the drive corase grind piece, fine grinding piece or polishing piece laminating the drive assembly that mould internal surface was polished, corase grind piece, fine grinding piece and polishing piece with drive assembly dismantlement formula fixed connection mutually. Through such design, the inner surface of the mould can achieve the effect of a mirror surface.

The driving assembly comprises an electric drill, a chuck of the electric drill is provided with a limiting groove, and the depth direction of the limiting groove is consistent with the axial lead direction of a rotating shaft of the electric drill; the limiting groove is internally inserted and connected with an insertion block. Through the design, the purpose of driving the coarse grinding part, the fine grinding part or the polishing part to rotate at a high speed is achieved, and therefore the grinding operation is carried out on the inner surface of the die.

The preferred technical scheme is that a limiting component for avoiding the movement of the inserting block is arranged between the limiting groove and the inserting block. Through the design, the separation of the insertion block from the chuck during rotation can be avoided.

The optimized technical scheme is that the limiting assembly comprises a threaded hole, a limiting hole and a screw rod, wherein the threaded hole is formed in the chuck and communicated with the limiting groove, the limiting hole is formed in the inserting block, and the screw rod is in threaded connection with the threaded hole and is in limiting fit with the limiting hole. Through such design, along with the wrong income of screw rod, the screw rod is spacing in spacing downthehole, has avoided the rotation of plug block to also avoid the back-and-forth movement of plug block promptly.

The preferred technical scheme is that the inserting block comprises a polishing inserting block, one end of the polishing inserting block is in inserting fit with the limiting groove, and the other end of the polishing inserting block is fixedly provided with the polishing piece. Through such design, realized polishing piece and electric drill looks dismantlement formula fixed connection's purpose.

The preferred technical scheme does, the grafting piece is including dull polish insert block, dull polish insert block is the circular shape section of polishing including inserting section and cross-section, corase grind piece and fine grinding piece are the abrasive paper that the mesh number is different, abrasive paper is around locating the periphery of the section of polishing, abrasive paper with be provided with between the section of polishing be used for with abrasive paper is fixed in fixed subassembly on the section of polishing. Through such design, realized abrasive paper and electric drill dismantlement formula fixed connection's purpose mutually.

The preferred technical scheme does, fixed subassembly including set up in the section of polishing and will the both ends of the section of polishing run through mutually spacing recess, with spacing recess grafting complex stopper, the notch of spacing recess is the setting of binding off form, sandpaper presss from both sides to establish and is fixed in spacing recess with between the stopper. Through such design, realized the purpose that abrasive paper is fixed in on the section of polishing.

The preferred technical scheme is that the grinding machine also comprises an adsorption component for removing grinding debris. Through such design, can clear away the piece of polishing, the user more definitely polishes the effect.

The preferred technical scheme does, the adsorption component is including communicating negative-pressure air fan, dirt box and straw in proper order, negative-pressure air fan and dirt box all with electric drill fixed connection, the dust absorption end of straw with the grafting piece is adjacent to be set up. Through the design, the negative pressure fan exhausts air, and the scraps are adsorbed by the suction pipe and stored in the dust box.

A paint-spraying-free highlight injection-molded word and brand mold polishing method comprises the following steps:

s1: polishing the inner surface of the mold by adopting 800-1000 meshes of oilstone;

s2: adopting 1000-2000 meshes of coarse sand paper to polish the inner surface of the die;

s3: polishing the inner surface of the die by using 2000-3000-mesh fine sand paper;

s4: and polishing and coloring the inner surface of the grinding tool by adopting a polishing head matched with the grinding paste.

The invention has the advantages and beneficial effects that: the paint-free highlight injection molding word card die polishing assembly and the polishing method have reasonable structure, firstly, the inner surface of the die is polished by the excrement, and then the electric drill is used for sequentially driving the coarse abrasive paper, the fine abrasive paper and the polishing head to polish, so that the inner surface of the die presents a mirror surface effect, and the demolded word card achieves the paint-free highlight effect.

Drawings

FIG. 1 is a schematic structural diagram of a paint-free high-gloss injection-molded word and plate mold polishing assembly and a polishing method according to embodiment 1 of the invention;

FIG. 2 is an exploded view of a paint-free high-gloss injection-molded word plate mold polishing assembly and polishing method according to embodiment 1 of the present invention;

FIG. 3 is a top view of the paint-free high-gloss injection-molded word and plate mold polishing assembly and polishing method of embodiment 1 of the present invention;

FIG. 4 isbase:Sub>A sectional view taken along A-A in FIG. 3 of embodiment 1 of the painting-free high-gloss injection-molded word and plate mold polishing assembly and polishing method according to the present invention;

FIG. 5 is an exploded view of FIG. 4 in the embodiment 1 of the painting-free high-gloss injection-molded medal mold polishing assembly and polishing method according to the present invention;

FIG. 6 is a schematic structural diagram of a sanding component and a sanding method of a paint-free highlight injection-molded word plate mold in accordance with embodiment 1 of the present invention;

FIG. 7 is an exploded view of FIG. 6 in embodiment 1 of the painting-free high-gloss injection-molded medallion mold polishing assembly and polishing method according to the present invention;

FIG. 8 is an enlarged view of a sanding block of a paint-free high-gloss injection-molded medallion mold and sanding method according to embodiment 1 of the present invention;

FIG. 9 is a schematic view of a mold for polishing assembly and polishing method of the paint-free high-gloss injection-molded word plate mold of embodiment 1 of the present invention;

FIG. 10 is a schematic structural diagram of a paint-free high-gloss injection-molded word and plate mold polishing assembly and polishing method according to embodiment 2 of the present invention;

FIG. 11 is an exploded view of the adsorption assembly of embodiment 2 of the painting-free high-gloss injection-molded medal mold polishing assembly and polishing method according to the present invention;

FIG. 12 is a cross-sectional view of a grinding section of a paint free high gloss injection molded word plate mold grinding assembly and grinding method of embodiment 3 of the present invention;

in the figure: 1. an electric drill; 11. a chuck; 12. a limiting groove; 21. a threaded hole; 22. a limiting hole; 23. a screw; 31. a fool-proof projection; 32. a fool-proof groove; 4. polishing the insert block; 41. a polishing member; 5. sanding and inserting blocks; 51. an insertion section; 52. a grinding section; 53. a rigid layer; 54. an elastic rubber layer; 55. a through hole; 6. sand paper; 71. a limiting groove; 72. a limiting block; 81. anti-skid projections; 82. an anti-slip groove; 91. a negative pressure fan; 92. a dust box; 93. a straw; 94. a filter screen; a. a mold; a1, inner surface.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to 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.

Example 1

As shown in fig. 1 to 9, the painting-free high-gloss injection molding word and plate mold polishing assembly of embodiment 1 includes a rough grinding part, a fine grinding part and a polishing part 41 which are used for polishing the inner surface a1 of the mold a and are used in sequence, and further includes a driving assembly for driving the rough grinding part, the fine grinding part or the polishing part 41 to be attached to the inner surface a1 of the mold a for polishing, wherein the rough grinding part, the fine grinding part and the polishing part 41 are detachably and fixedly connected with the driving assembly.

The driving assembly comprises an electric drill 1, a chuck 11 of the electric drill 1 is provided with a limiting groove 12, and the depth direction of the limiting groove 12 is consistent with the axial lead direction of a rotating shaft of the electric drill 1; an insertion block is inserted into the limit groove 12.

A limiting component for avoiding the movement of the insertion block is arranged between the limiting groove 12 and the insertion block.

The limiting component comprises a threaded hole 21 which is arranged on the chuck 11 and communicated with the limiting groove 12, a limiting hole 22 which is arranged on the inserting block, and a screw 23 which is in threaded connection with the threaded hole 21 and is in limited fit with the limiting hole 22.

A fool-proof protrusion 31 and a fool-proof groove 32 are arranged between the insertion block and the limiting groove 12, and the fool-proof protrusion and the fool-proof groove are convenient for communicating the threaded hole 21 with the limiting hole 22 when the insertion block is inserted.

The plug-in block includes polishing plug-in block 4, the one end of polishing plug-in block 4 with spacing groove 12 matches of pegging graft mutually, the other end of polishing plug-in block 4 is fixed and is provided with polishing 41.

The polishing member 41 is a polishing head.

The grafting piece is including the dull polish inserted block 5, dull polish inserted block 5 is the circular shape section 52 of polishing including inserting section 51 and cross-section, corase grind piece and fine grinding piece are the abrasive paper 6 that the mesh number is different, abrasive paper 6 is around locating the periphery of the section 52 of polishing, abrasive paper 6 with it is used for with to be provided with between the section 52 of polishing abrasive paper 6 is fixed in fixed subassembly on the section 52 of polishing.

The coarse grinding piece is coarse sand paper of 1000-2000 meshes; the fine abrasive part is 2000-3000 meshes of fine sand paper.

Fixed subassembly including set up in polish section 52 and will polish section 52 both ends run through spacing recess 71, with spacing recess 71 grafting complex stopper 72, the notch of spacing recess 71 is the close up form setting, sandpaper 6 presss from both sides to establish and is fixed in spacing recess 71 with between the stopper 72.

The front of the limiting groove 71 and the limiting block 72 is provided with a skidproof protrusion 81 and a skidproof groove 82 which are mutually limited and matched.

And further comprises oilstone for primarily sanding the inner surface a1 of the mold a.

A paint-spraying-free highlight injection-molded word and plate mold polishing method comprises the following steps:

s1: adopting 800-1000 meshes of oilstone to polish the inner surface of the mold;

s2: adopting 1000-2000 mesh coarse sand paper to polish the inner surface of the mold;

s3: polishing the inner surface of the mold by using 2000-3000-mesh fine sand paper;

s4: and polishing and coloring the inner surface of the grinding tool by adopting a polishing head matched with the grinding paste.

The use of example 1 was: firstly, an operator takes out 800-1000 meshes of oilstone to carry out primary grinding on the inner surface a1 of the die a;

then, taking out the coarse sandpaper, the sanding insert 5 and the electric drill 1, winding the coarse sandpaper around the periphery of the sanding section 52 and in the limiting groove 71, inserting the limiting block 72 into the limiting groove 71, tightly clamping and fixing the coarse sandpaper in the limiting block 72 and the limiting groove 71, and mutually matching the anti-skid protrusions 81 and the anti-skid grooves 82 to prevent the limiting block 72 from rotating; then the sanding insert 5 is inserted into the chuck 11, the step that an operator aligns the limiting hole 22 with the threaded hole 21 is omitted by the cooperation of the fool-proof protrusion 31 and the fool-proof groove 32, after the sanding insert 5 is inserted in place, the screw 23 is screwed in, the screw 23 is in threaded connection with the threaded hole 21, and along with the screwing in of the screw 23, one part of the screw 23 is inserted into the limiting hole 22 and the other part is connected with the chuck 11; at the moment, the electric drill 1 can be started, and the inner surface a1 of the die a is polished by coarse abrasive paper;

taking off the coarse sandpaper, installing the fine sandpaper according to the steps, and polishing the inner surface a1 of the die a through the fine sandpaper;

then taking down the frosted insert block 5, inserting the frosted insert block into the polishing insert 4, taking out the grinding paste to be smeared on the inner surface a1 of the die a, starting the motor 1, and enabling the polishing head to be matched with the grinding paste to polish and polish the inner surface a1 of the die a;

after the steps are completed, the inner surface a1 of the die a presents a mirror surface effect, and the character plate obtained by demolding can achieve the effects of paint spraying prevention and high light.

Example 2

As shown in fig. 10-11, example 2 is based on example 1, with the difference that: the grinding device also comprises an adsorption component for removing grinding debris.

The adsorption component comprises a negative pressure fan 91, a dust box 92 and a suction pipe 93 which are communicated in sequence, the negative pressure fan 91 and the dust box 92 are both fixedly connected with the electric drill 1, and the dust suction end of the suction pipe 93 is adjacent to the insertion block. A filter screen 94 is inserted into the dust box 92.

The difference between the embodiment 2 and the embodiment 1 in use lies in that when an operator performs a grinding operation on the mold a, the negative pressure fan 91 is started, the end of the suction pipe 93 is adjusted to be close to the grinding section 52, and along with the dropping of the mold a fragments during grinding, the fragments are sucked into the dust box 92 by the suction pipe 93, so that the visual field of the operator is ensured, the grinding effect is conveniently and visually observed by the operator, and the grinding efficiency is improved.

Example 3

As shown in fig. 12, example 3 is based on example 2, with the difference that: the sanding section 52 comprises a central rigid layer 53 and an elastic rubber layer 54 coated outside the rigid layer 53, and the sandpaper 6 is wound outside the elastic rubber layer 54;

in order to ensure the integrity and the connection firmness of the elastic rubber layer 54 and the rigid layer 53, the elastic rubber layer 54 and the rigid layer 53 are integrally formed by injection molding, and the rigid layer 53 is provided with a through hole 55 for injecting raw materials of the elastic rubber layer 54.

Example 3 differs from example 2 in the use: the sand paper 6 is fixedly attached to the elastic rubber layer 54, when a worker polishes the inner surface a1 of the mold a and encounters an arc-shaped corner, the sand paper 6 is elastically deformed with the elastic rubber layer 54 and is attached to the inner surface a1 of the mold a, and the purpose of fully polishing the corner angle of the edge of the mold a is achieved.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (10)

1. The utility model provides a exempt from subassembly of polishing of lacquer highlight injection moulding word tablet mould, its characterized in that, is including being used for grinding mould (a) internal surface (a 1) and the corase grind piece, fine grinding and polishing piece (41) that use in proper order, still including being used for the drive corase grind piece, fine grinding or polish piece (41) laminating the drive assembly that mould (a) internal surface (a 1) was polished, corase grind piece, fine grinding and polish piece (41) with drive assembly dismantlement formula fixed connection mutually.

2. The paint-free highlight injection-molded word and plate mold grinding assembly according to claim 1, wherein the driving assembly comprises an electric drill (1), a chuck (11) of the electric drill (1) is provided with a limiting groove (12), and the depth direction of the limiting groove (12) is consistent with the axial lead direction of a rotating shaft of the electric drill (1); the limiting groove (12) is internally inserted with an insertion block.

3. The polishing assembly of the paint-free high-gloss injection-molded word and plate mold according to claim 2, wherein a limiting assembly for preventing the movement of the insertion block is arranged between the limiting groove (12) and the insertion block.

4. The polishing assembly of the paint-free high-gloss injection-molded word and plate mold according to claim 3, wherein the limiting assembly comprises a threaded hole (21) disposed on the chuck (11) and communicated with the limiting groove (12), a limiting hole (22) disposed on the plug-in block, and a screw (23) in threaded connection with the threaded hole (21) and in limited fit with the limiting hole (22).

5. The painting-free high-gloss injection molding word and brand mold grinding assembly according to claim 2, characterized in that the insertion block comprises a polishing insertion block (4), one end of the polishing insertion block (4) is in insertion fit with the limiting groove (12), and the other end of the polishing insertion block (4) is fixedly provided with the polishing piece (41).

6. The paint spraying-free highlight injection molding signboard mould grinding assembly according to claim 2, wherein the insertion block comprises a grinding insertion block (5), the grinding insertion block (5) comprises an insertion section (51) and a grinding section (52) with a circular cross section, the coarse grinding part and the fine grinding part are sand paper (6) with different meshes, the sand paper (6) is wound on the periphery of the grinding section (52), and a fixing assembly for fixing the sand paper (6) on the grinding section (52) is arranged between the sand paper (6) and the grinding section (52).

7. The painting-free high-gloss injection-molded word and brand mold polishing assembly according to claim 6, wherein the fixing assembly comprises a limiting groove (71) which is arranged in the polishing section (52) and penetrates through two ends of the polishing section (52), and a limiting block (72) which is in plug-in fit with the limiting groove (71), the groove opening of the limiting groove (71) is in a closed-up shape, and the sand paper (6) is clamped and fixed between the limiting groove (71) and the limiting block (72).

8. The paint-free high-gloss injection-molded word and plate mold polishing assembly according to claim 2, further comprising an adsorption assembly for removing polishing debris.

9. The painting-free high-gloss injection molding word tablet mould of claim 8 subassembly of polishing, characterized in that, the absorption subassembly includes communicating negative-pressure air fan (91), dirt box (92) and straw (93) in proper order, negative-pressure air fan (91) and dirt box (92) all with electric drill (1) fixed connection, the dust absorption end of straw (93) with the grafting piece is adjacent to be set up.

10. The polishing method of the paint-spraying-free highlight injection-molded word plate mold is characterized by comprising the following steps of:

s1: adopting 800-1000 meshes of oilstone to polish the inner surface of the mold;

s2: adopting 1000-2000 mesh coarse sand paper to polish the inner surface of the mold;

s3: polishing the inner surface of the mold by using 2000-3000-mesh fine sand paper;

s4: and polishing and coloring the inner surface of the grinding tool by adopting a polishing head matched with the grinding paste.

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