CN218254498U

CN218254498U - Mould polishing machine

Info

Publication number: CN218254498U
Application number: CN202222843585.6U
Authority: CN
Inventors: 魏成章; 宁美玉
Original assignee: Foshan Zaoli Technology Co ltd
Current assignee: Foshan Zaoli Technology Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-01-10
Anticipated expiration: 2032-10-27

Abstract

The utility model discloses a mould polishing machine, which comprises a machine table, a clamping component and a polishing component, wherein the clamping component and the polishing component are arranged on the machine table; the clamping assembly comprises a positioning seat, a pushing block and a clamping power piece, the positioning seat is installed on the machine table, the pushing block is connected with the positioning seat in a sliding mode, and the clamping power piece is used for driving the pushing block; the polishing assembly comprises a working frame arranged on one side of the positioning seat and a polishing head arranged on the working frame, the polishing head comprises a linear guide sleeve, a telescopic rod, a cutter and a polishing power piece, the linear guide sleeve is connected with the working frame, the telescopic rod is connected with the linear guide sleeve in a sliding mode, the cutter is arranged at one end, close to the positioning seat, of the telescopic rod, and the polishing power piece is used for driving the telescopic rod to be close to or far away from the positioning seat; this mould polishing machine presss from both sides tight the mould and fixes on the positioning seat, carries out burnishing and polishing to the die cavity of mould by polishing power spare drive cutter again, compares efficiency with artifical polishing higher, and polishing quality is more stable, is favorable to improving the production efficiency in workshop and promotes the quality of product.

Description

Mould polishing machine

Technical Field

The utility model relates to a relevant technical field of mould burnishing machine especially relates to a mould burnishing machine.

Background

The production of profiles is usually produced by means of an extrusion process, which requires reliance on extrusion dies. The extrusion die is provided with a forming cavity corresponding to the cross-sectional shape of the section bar, and the finish of the forming cavity directly influences the surface quality of the product. The last critical process for the fabrication and maintenance of the mold is therefore polishing.

At present, the efficiency of mould polishing is very low, mainly rely on artifical polishing, the polishing workman utilizes pneumatic or electronic pen of polishing to carry out the corase grind to the mould usually, then reuse file, abrasive paper or oilstone carry out the correct grinding to the mould, lead to polishing inefficiency, and polishing quality seriously depends on operation workman's experience, lead to polishing quality unstability easily, do over again easily, still can reduce workshop production efficiency and influence product quality, consequently polish the demand that can not satisfy actual production to the mould through the manual work of inefficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mould burnishing machine, it has polishing efficiency height, stable in quality's advantage to overcome the not enough that exist among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

a mould polishing machine comprises a machine table, and a clamping assembly and a polishing assembly which are arranged on the machine table;

the clamping assembly comprises a positioning seat, a pushing block and a clamping power piece, the positioning seat is installed on the machine table, the pushing block is connected with the positioning seat in a sliding mode, and the clamping power piece is used for driving the pushing block;

the polishing assembly comprises a working frame arranged on one side of the positioning seat and a polishing head arranged on the working frame, the polishing head comprises a linear guide sleeve, a telescopic rod, a cutter and a polishing power piece, the linear guide sleeve is connected with the working frame, the telescopic rod is in sliding connection with the linear guide sleeve, the cutter is arranged at one end, close to the positioning seat, of the telescopic rod, and the polishing power piece is used for driving the telescopic rod to be close to or far away from the positioning seat.

In one embodiment, the polishing head further comprises a linear shaft seat, an eccentric wheel and a swing rod, the linear shaft seat is mounted at one end, away from the cutter, of the linear guide sleeve, the polishing power part is mounted on the outer side of the linear shaft seat, the eccentric wheel and the swing rod are arranged in the linear shaft seat, the eccentric wheel is connected with the output end of the polishing power part, one end of the swing rod is rotatably connected with the eccentric wheel, and the other end of the swing rod is rotatably connected with the telescopic rod.

In one embodiment, the polishing assembly further comprises a steering fixing seat wrapped on the outer surface of the linear guide sleeve, the steering fixing seat comprises a fixing portion and a movable portion, the fixing portion is connected with the working frame, the movable portion is connected with the fixing portion through screws, and the movable portion and the fixing portion form a fixing hole for the linear guide sleeve to penetrate through.

In one embodiment, the polishing assembly further comprises a translation mechanism, the translation mechanism comprises a guide rod, a first lead screw, a sliding seat and a translation power part, the guide rod and the first lead screw are mounted on the working frame, a guide sleeve corresponding to the guide rod and a first nut corresponding to the first lead screw are mounted on the sliding seat, the translation power part is mounted at one end of the first lead screw and used for driving the sliding seat to move along the directions of the left end and the right end of the positioning seat, and the steering fixing seat is mounted on the sliding seat.

In one embodiment, the polishing assembly further comprises an elevating mechanism, the elevating mechanism comprises a vertical column, a second screw rod and an elevating power part, the vertical column is arranged at two ends of the working frame, the working frame is connected with the vertical column in a sliding manner, the second screw rod is arranged on the vertical column, the second screw rod is arranged along the length extending direction of the vertical column, a second nut corresponding to the second screw rod is arranged on the working frame, and the elevating power part is arranged at one end of the second screw rod and used for driving the working frame to ascend and descend along the vertical column.

In one embodiment, the polishing assembly further includes a pushing mechanism, the pushing mechanism includes a second linear guide rail, a second slider, a third screw rod and a hand wheel, the second linear guide rail is mounted on the machine table, the second slider is connected with the second linear guide rail in a sliding manner, the upright is connected with the second slider, the third screw rod is mounted on the machine table, a third nut corresponding to the third screw rod is mounted on the second slider, and the hand wheel is connected with one end of the third screw rod.

In one embodiment, the positioning seat comprises two side plates and a plurality of unpowered rollers, the two side plates are arranged oppositely, two ends of each unpowered roller are respectively and rotatably connected with the two side plates, and the unpowered rollers are arranged on the side plates in a concave arc shape.

In one embodiment, the polishing head cleaning device further comprises a dust removal assembly, the dust removal assembly comprises a dust hood, an exhaust fan and a dust collection box, the dust hood is installed on one side, away from the polishing head, of the positioning seat, the exhaust fan is communicated with the dust hood through a dust collection pipe, the dust collection box is arranged inside the machine table, the dust collection box is used for collecting dust discharged from the dust collection pipe, and a waste discharge port communicated with the dust collection box is formed in the machine table.

In one embodiment, the device further comprises a feeding assembly, wherein the feeding assembly comprises a roller frame and a jack, the roller frame is installed on one side of the positioning seat, and the jack is installed above the roller frame.

In one embodiment, the polishing power member is a servo motor.

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

the utility model discloses a mould burnishing machine places the mould on the positioning seat, utilizes centre gripping power spare to promote the ejector pad and presss from both sides the tight fixing of mould clamp on the positioning seat, is flexible reciprocating motion by polishing power spare drive telescopic link again to drive the cutter and carry out burnishing and polishing to the mould die cavity, compare with artifical burnishing and polishing and have that mould polishing efficiency is high, and the advantage of polishing steady quality is favorable to improving the production efficiency in workshop and the quality that promotes the product.

Drawings

Fig. 1 is a schematic overall structure diagram of a mold polishing machine according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the mold polisher shown in FIG. 1 from another perspective;

FIG. 3 is a schematic diagram of the clamping assembly and the polishing assembly of the mold polisher shown in FIG. 2;

FIG. 4 is a schematic structural view of a clamping assembly in the mold polisher shown in FIG. 3;

FIG. 5 is a schematic view of a polishing assembly of the mold polisher shown in FIG. 3;

FIG. 6 is a schematic view of the polishing head and the steering holder of the polishing assembly shown in FIG. 5.

Reference is made to the accompanying drawings in which:

the mold polishing machine 100:

a machine table 10; the clamping assembly 20, the positioning seat 21, the side plate 211, the unpowered roller 212, the push block 22 and the clamping power piece 23; the polishing device comprises a polishing assembly 30, a working frame 31, a polishing head 32, a linear guide sleeve 321, a telescopic rod 322, a cutter 323, a polishing power part 324, a linear shaft seat 325, an eccentric wheel 326, a swing rod 327, a steering fixing seat 33, a translation mechanism 34, a guide rod 341, a first screw rod 342, a sliding seat 343, a translation power part 344, a lifting mechanism 35, an upright column 351, a second screw rod 352, a lifting power part 353, a pushing mechanism 36, a second linear guide rail 361 and a second sliding block 362; a dust removing assembly 40, a dust hood 41, a suction fan 42, a dust collecting box 43; a loading assembly 50, a roller frame 51, a jack 52; a controller 60; a mold 70.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When the number of an element is referred to as "a plurality," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The present invention will be described in detail with reference to embodiments shown in the drawings:

referring to fig. 1 to 6, a mold polisher 100 according to a preferred embodiment of the present invention includes a machine 10, and a clamping assembly 20 and a polishing assembly 30 mounted on the machine 10; the clamping assembly 20 comprises a positioning seat 21, a pushing block 22 and a clamping power piece 23, the positioning seat 21 is installed on the machine table 10, the pushing block 22 is connected with the positioning seat 21 in a sliding mode, and the clamping power piece 23 is used for driving the pushing block 22; the polishing assembly 30 comprises a work frame 31 arranged on one side of the positioning seat 21 and a polishing head 32 mounted on the work frame 31, the polishing head 32 comprises a linear guide sleeve 321, a telescopic rod 322, a cutter 323 and a polishing power piece 324, the linear guide sleeve 321 is connected with the work frame 31, the telescopic rod 322 is connected with the linear guide sleeve 321 in a sliding manner, the cutter 323 is mounted at one end of the telescopic rod 322 close to the positioning seat 21, and the polishing power piece 324 is used for driving the telescopic rod 322 to be close to or far away from the positioning seat 21. The utility model provides a mould burnishing machine 100 presss from both sides tight the fixing of mould 70 on positioning seat 21, is again polished by polishing power spare 324 drive cutter 323 to mould 70's die cavity, compares efficiency with artifical polishing higher, and polishing quality is more stable, is favorable to improving the production efficiency in workshop and promotes the quality of product.

As shown in fig. 2, 3 and 4, the clamping assembly 20 is used for clamping the mold 70, preventing the mold 70 from being displaced during the polishing process, and improving the polishing quality of the mold 70. The clamping assembly 20 includes a positioning seat 21, a pushing block 22 and a clamping power member 23. The positioning seat 21 is installed on the machine table 10, and the positioning seat 21 is used for assisting in positioning the mold 70; further, the positioning seat 21 includes a side plate 211 and a plurality of unpowered rollers 212, the number of the side plate 211 is two, the two side plates 211 are disposed oppositely, two ends of each unpowered roller 212 are respectively and rotatably connected with the two side plates 211, and each unpowered roller 212 is in a concave arc shape and is arranged on the side plate 211, the unpowered rollers 212 are arranged in such a way that the die 70 can be prevented from sliding in the positioning seat 21, so that the auxiliary positioning effect is achieved, and the unpowered rollers 212 can facilitate adjustment of the placing angle of the die 70 on the positioning seat 21. The pushing block 22 is slidably connected to the positioning seat 21, a guide post (not shown) slidably connected to the pushing block 22 is disposed in the positioning seat 21, and the clamping power member 23 is mounted on one of the side plates 211 and used for driving the pushing block 22 to slide along the guide post, so that the pushing block 22 and the other side plate 211 cooperate to clamp the mold 70.

As shown in fig. 1 to 3, the polishing assembly 30 is used for polishing the cavity of the mold 70 held on the positioning base 21. The polishing assembly 30 includes a work frame 31 disposed on one side of the positioning seat 21, and a polishing head 32 mounted on the work frame 31, and in order to prevent the positioning seat 21 from interfering with the polishing operation, a side plate 211 of the positioning seat 21 close to the polishing head 32 is subjected to a clearance treatment.

As shown in fig. 6, the polishing head 32 includes a linear guide bush 321, an expansion link 322, a cutter 323 and a polishing power component 324, the linear guide bush 321 is connected to the working frame 31, the expansion link 322 is slidably connected to the linear guide bush 321, the cutter 323 is installed at an end of the expansion link 322 close to the positioning seat 21, the cutter 323 is a file or a oilstone, and the polishing power component 324 is used to drive the expansion link 322 to approach or leave the positioning seat 21. Further, the polishing head 32 further includes a linear shaft seat 325, an eccentric wheel 326 and a swing rod 327, the linear shaft seat 325 is installed at one end of the linear guide sleeve 321 away from the cutter 323, the polishing power component 324 is installed outside the linear shaft seat 325, the eccentric wheel 326 and the swing rod 327 are internally installed in the linear shaft seat 325, the eccentric wheel 326 is connected with an output end of the polishing power component 324, one end of the swing rod 327 is rotatably connected with the eccentric wheel 326, the other end of the swing rod 327 is rotatably connected with the telescopic rod 322, and the rotational motion of the polishing power component 324 can be converted into the linear reciprocating motion required by the polishing of the mold 70 through the matching of the eccentric wheel 326 and the swing rod 327.

Referring to fig. 5 and 6, since the cavities of the mold 70 have different shapes, one of the cavities is polished, and another cavity is polished, and it may be necessary to adjust the angle of the polishing head 32 so that the tool is parallel to the cavity of the mold 70, in order to adjust the angle of the polishing head 32, the polishing assembly 30 further includes a turning fixing seat 33 wrapped on the outer surface of the linear guide sleeve 321, the turning fixing seat 33 includes a fixing portion (not shown) and a moving portion (not shown), the fixing portion is connected to the working frame 31, the moving portion is connected to the fixing portion via a screw, the moving portion and the fixing portion form a fixing hole (not shown) for the linear guide sleeve 321 to penetrate, in order to adjust the angle of the polishing head 32 arbitrarily, the cross sections of the linear guide sleeve 321 and the fixing hole are circular, and when the angle of the polishing head 32 needs to be adjusted, the screw connecting the fixing portion and the moving portion needs to be loosened, and the polishing head 32 is rotated to a desired angle, and then the fixing portion and the moving portion are locked to prevent the polishing head 32 from rotating.

Referring to fig. 3 and fig. 5, in order to facilitate the polishing head 32 to move along the extending direction of the side plate 211 of the positioning seat 21 to obtain a larger processing range, the polishing assembly 30 further includes a translation mechanism 34. The translation mechanism 34 includes a guide rod 341, a first screw rod 342, a sliding seat 343 and a translation power component 344, the guide rod 341 and the first screw rod 342 are installed on the working frame 31, and the guide rod 341 and the first screw rod 342 are both parallel to the side plate 211 of the positioning seat 21. The sliding seat 343 is provided with a guide sleeve (not shown) corresponding to the guide rod 341 and a first nut (not shown) corresponding to the first screw rod 342, the translational power part 344 is installed at one end of the first screw rod 342 and used for driving the sliding seat 343 to move along the directions of the left end and the right end of the positioning seat 21, and the steering fixing seat 33 is installed on the sliding seat 343. Optionally, the translation motive member 344 is a servo motor or a stepper motor. Further, in order to prevent the chips and dust generated by polishing from affecting the operation of the first lead screw and the first nut, a first dust cover (not shown) is installed on one side of the working frame 31 close to the positioning seat 21, and the first dust cover covers the guide rod 341, the first lead screw 342 and the sliding seat 343.

To facilitate adjustment of the height of the polishing head 32 to achieve a greater processing range. The polishing assembly 30 further comprises an elevating mechanism 35, the elevating mechanism 35 comprises a vertical column 351, a second screw 352 and an elevating power component 353, the vertical column 351 is arranged at two ends of the working frame 31, the working frame 31 is slidably connected with the vertical column 351, a first sliding block (not shown) is arranged on the working frame 31, and a first linear guide rail (not shown) corresponding to the first sliding block is arranged on the vertical column 351. The second lead screw 352 is installed on one of the columns 351, the second lead screw 352 is arranged along the length extending direction of the column 351, a second nut (not shown) corresponding to the second lead screw 352 is installed on the working frame 31, and the lifting power member 353 is installed at one end of the second lead screw 352 and used for driving the second lead screw 353 to rotate, so that the working frame 31 is driven to lift along the column 351. Optionally, the lifting power member is a servo motor or a stepping motor. A second dust cover (not shown) is installed on one side of the upright column 351, which is installed with the second lead screw 352, close to the positioning seat 21, and the second dust cover is used for protecting the second lead screw 352 and the second nut.

In order to prevent the polishing head 32 from interfering with the mold 70 when the mold 70 is loaded, the polishing assembly 30 further includes a pushing mechanism 36, and the pushing mechanism 36 is used for driving the polishing head 32 to approach or move away from the mold 70 held on the positioning seat 21. The pushing mechanism 36 includes a second linear guide 361, a second slider 362, a third screw (not shown in the figure) and a hand wheel (not shown in the figure), the second linear guide 361 is installed on the machine table 10, the second slider 362 is slidably connected with the second linear guide 361, the upright 351 is connected with the second slider 362, the third screw is installed on the machine table 10, a third nut (not shown in the figure) corresponding to the third screw is installed on one of the second sliders 362, the hand wheel is connected with one end of the third screw, and the second slider 362 slides along the second linear guide 361 by shaking the hand wheel, so that the polishing head 32 is close to or far from the mold 70 clamped on the positioning seat 21. When the mold 70 is clamped in front of the positioning seat 21, the hand wheel is shaken to enable the polishing head 32 to move towards the direction away from the mold 70, and after the mold 70 is installed, the hand wheel is shaken to enable the polishing head 32 to move towards the direction of the mold 70, so that the length of the cutter 323 can be reduced, the strength of the cutter 323 is improved, the beating amplitude of the cutter in the polishing operation process is reduced, and the polishing quality is improved.

Referring to fig. 1 and 2 again, in order to prevent dust generated during polishing from contaminating the air in the workshop, the mold polisher 100 further includes a dust removing assembly 40. The dust removing assembly 40 includes a dust hood 41, a suction fan 42 and a dust box 43, the dust hood 41 is installed on a side of the positioning seat 21 away from the polishing head 32, and a plurality of suction ports (not shown) are provided on a side of the dust hood close to the positioning seat 21. The suction fan 42 is communicated with the dust hood 41 through a dust suction pipe (not shown), the dust box 43 is disposed inside the machine 10, the dust box 43 is used for discharging dust from the dust suction pipe, and the machine 10 is further provided with a waste discharge port (not shown) communicated with the dust box 43. Furthermore, a dust falling port (not shown) is further arranged below the positioning seat 21 on the machine table 10, the dust collection box 43 is located right below the dust falling port, and dust with larger particles generated by polishing can directly fall into the dust collection box 43 by utilizing gravity, so that the dust can be conveniently and intensively treated.

In one embodiment, in order to facilitate loading, the mold polishing machine 100 further comprises a loading assembly 50, wherein the loading assembly 50 comprises a roller frame 51 and a jack 52, the roller frame 51 is installed at one side of the positioning seat 21, and the jack 52 is installed above the roller frame 51. Alternatively, the roller frame 51 is an unpowered or powered roller frame and the jacks 52 are lifting booms or manipulators. The mold 70 to be polished is placed on the roller frame 51, and the mold on the roller frame 51 is lifted by the jack 52 and placed on the positioning seat 21 for clamping, so that the labor intensity of feeding can be reduced by arranging the feeding assembly 50, and the safety and the health of operators are facilitated.

As shown in fig. 1 and 2, the mold polisher 100 further includes a controller 60, the controller 60 is installed on the machine 10, and the controller 60 is used for controlling the clamping assembly 20, the polishing assembly 30 and the loading assembly 50 to cooperate.

When the mould 70 polishing device is used, firstly, a mould 70 to be polished is placed on the roller frame 51, then the handle is shaken, the polishing head 32 moves towards the direction away from the positioning seat 21, the controller 60 is started, the controller 60 controls the jack 52 to lift the mould 70 onto the positioning seat 21 (the jack 52 can also be controlled by another remote controller or handle), then the clamping power piece 23 drives the push block 22 to be matched with the side plate 21 to clamp the mould 70, then the handle is shaken, the polishing head 32 is reset and the knife is aligned, then the processing parameters and the processing program are set in the controller 60, the exhaust fan 42 is opened to remove dust, and finally the program is started to control the polishing assembly 30 to polish the mould 70.

The utility model discloses a mould burnishing machine 100 places mould 70 on positioning seat 21, utilize centre gripping power spare 23 to promote ejector pad 22 and press from both sides the tight fixing of mould 70 clamp on positioning seat 21, do flexible back and forth movement by polishing power spare 324 drive telescopic link 322 again to drive cutter 323 and carry out burnishing and polishing to mould 70 die cavities, it is high to have mould 70 polishing efficiency with artifical burnishing and polishing contrast, the advantage that polishing quality is stable, be favorable to improving the production efficiency in workshop and the quality that promotes the product.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a mould burnishing machine which characterized in that: comprises a machine table, a clamping assembly and a polishing assembly, wherein the clamping assembly and the polishing assembly are arranged on the machine table;

2. The mold polisher of claim 1, wherein: the polishing head further comprises a linear shaft seat, an eccentric wheel and a swing rod, the linear shaft seat is installed at one end, far away from the cutter, of the linear guide sleeve, the polishing power part is installed on the outer side of the linear shaft seat, the eccentric wheel and the swing rod are arranged in the linear shaft seat, the eccentric wheel is connected with the output end of the polishing power part, one end of the swing rod is rotatably connected with the eccentric wheel, and the other end of the swing rod is rotatably connected with the telescopic rod.

3. The mold polisher of claim 1, wherein: the polishing component further comprises a steering fixing seat wrapped on the outer surface of the linear guide sleeve, the steering fixing seat comprises a fixing portion and a moving portion, the fixing portion is connected with the working frame, the moving portion is connected with the fixing portion through screws, and the moving portion and the fixing portion form a fixing hole for the linear guide sleeve to penetrate through.

4. The mold polisher of claim 3, wherein: polishing subassembly still includes translation mechanism, translation mechanism includes guide bar, first lead screw, the seat and the translation power spare of sliding, the guide bar with first lead screw is installed on the workstation, slide install on the seat with the uide bushing that the guide bar corresponds and with the first nut that first lead screw corresponds, the translation power spare is installed the one end of first lead screw is used for the drive slide the seat is followed the direction at both ends is removed about the positioning seat, turn to the fixing base and install slide on the seat.

5. The mold polisher of claim 4, wherein: polishing subassembly still includes elevating system, elevating system includes stand, second lead screw and lift power spare, the stand sets up the both ends of workstation, the workstation with stand sliding connection, the second lead screw is installed on the stand, just the second lead screw is followed the length extending direction of stand sets up, install on the workstation with the second nut that the second lead screw corresponds, the lift power spare is installed the one end of second lead screw is used for the drive the workstation is followed the stand goes up and down.

6. The mold polisher of claim 5, wherein: polishing subassembly still includes push mechanism, push mechanism includes second linear guide, second slider, third lead screw and hand wheel, second linear guide installs on the board, the second slider with second linear guide sliding connection, the stand with the second slider is connected, the third lead screw is installed on the board, install on the second slider with the third nut that the third lead screw corresponds, the hand wheel with the one end of third lead screw is connected.

7. The mold polisher of claim 1, wherein: the positioning seat comprises side plates and a plurality of unpowered rollers, the number of the side plates is two, the two side plates are arranged oppositely, two ends of each unpowered roller are respectively and rotatably connected with the two side plates, and the unpowered rollers are arranged on the side plates in a concave arc shape.

8. The mold polisher of claim 1, wherein: still include the dust removal subassembly, the dust removal subassembly includes suction hood, air exhauster and dust collection box, the suction hood is installed the positioning seat is kept away from one side of rubbing head, the air exhauster with the suction hood passes through the dust absorption pipe intercommunication, the dust collection box sets up inside the board, the dust collection box is used for following dust absorption pipe exhaust dust, be equipped with on the board with the waste discharge mouth of dust collection box intercommunication.

9. The mold polisher of claim 1, wherein: still include the material loading subassembly, the material loading subassembly includes roller frame and jack, roller frame installs the one side at the positioning seat, the jack is installed roller frame's top.

10. The mold polisher of claim 1, wherein: the polishing power part is a servo motor.