Inner wall grinding mechanism for mold modification
By introducing a stable grinding structure and a flexible bellows into the grinding device for the inner wall of the mold, the problem of insufficient stability of the grinding device for the inner wall of the mold during long-term use is solved, and the stable fit and flexibility of the grinding head are achieved, thereby improving the reliability and stability of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-03-24
AI Technical Summary
Existing mold inner wall grinding devices lack stability during prolonged use, leading to hand fatigue and unstable grinding trajectory, which affects operational stability and equipment reliability.
A robust grinding structure was designed, comprising a handheld grinder body, a drive head, a connecting rod, a fixing bar, a return spring, a transmission plate, a transmission column, and casters. The combination of the return spring and casters ensures that the grinding head is stably attached to the surface of the grinding tool, and the flexible corrugated tube prevents debris from getting stuck, thus improving the stability and flexibility of the device.
This results in smoother movement of the grinding head on the surface of the grinding wheel, more even force distribution, reduced shaking and localized wear, improved reliability and stability of the device, and reduced operator fatigue.
Smart Images

Figure CN224027242U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to polishing technical field, especially a mould modifies and uses inner wall polishing mechanism. BACKGROUND
[0002] Before use, the mould usually needs to carry out strict quality inspection and detection, in this process, the mould inner wall can appear various defects, such as surface roughness does not meet the requirement, there is processing trace, size deviation etc., therefore usually need to carry out the modification, correction of polisher, and the polisher is a kind of equipment specially used to polish, trim and other processing operations to mould inner wall.
[0003] Through the search of the China patent with the announcement number "CN220113002U", a "handheld polishing tool" is disclosed, the polishing tool installs motor on the right side of mounting plate, presses circular plate to left, moves mounting plate to left by vertical column, drives motor and also drives rotating shaft to move to left, so that rotating shaft can extend to left, and further through circular plate, vertical column and mounting plate, solve the problem that polishing body cannot extend when polishing in hole, cause polishing body to be unable to polish the place of hole depth and reduce the practicability of polishing tool, and through the action of spring, circular plate can be reset, convenient and fast;
[0004] Based on the above search and combining prior art, it is found that the above patent has certain defects, in actual use process, the center of gravity of the polishing tool completely depends on hand holding to control, however, human hand muscles are prone to fatigue in long-time operation, and it is difficult to continuously maintain stable force state, when long-time polishing operation is carried out on the polisher, hand fatigue is intensified, when polishing body is controlled, unstable movement track, polishing body shaking and other conditions are prone to occur, and the stability is insufficient, which needs to be improved. UTILITY MODEL CONTENT
[0005] (I) technical problem solved
[0006] In view of the defects of prior art, the utility model provides a mould modification inner wall polishing mechanism, which solves the technical problem of insufficient stability of the existing device.
[0007] (II) technical scheme
[0008] To achieve the above purpose, the utility model is realized by the following technical scheme:
[0009] A kind of inner wall polishing mechanism for mould modification, including hand-held polisher body, the hand-held polisher body surface is equipped with drive head;
[0010] Integrated stable polishing structure is symmetrically arranged on the side wall of the drive head;
[0011] The integral stable polishing structure comprises connecting rods, fixed strips are fixedly installed on the side walls of the two connecting rods, the shapes of the two connecting rods and fixed strips after combination are both "L" shapes, storage grooves are formed in the interiors of the two fixed strips, return springs are fixedly installed on the inner walls of the two storage grooves, transmission plates are fixedly installed on the side walls of the two return springs, the two transmission plates are located in the interiors of the storage grooves and are slidingly installed, transmission columns are fixedly installed on the side walls of the two transmission plates, the two transmission columns are partially exposed to the exteriors of the fixed strips, universal wheels are arranged on the side walls of the two transmission columns, and the stretching actions of the two return springs can drive the transmission plates, transmission columns and universal wheels to move synchronously.
[0012] Preferably, symmetrical grooves are formed in the inner walls of the storage grooves, the grooves are located on the two sides of the transmission plates, sliding blocks are slidingly installed in the interiors of the grooves, the sliding blocks are fixedly installed on the transmission plates, limiting grooves are formed in the interiors of the grooves, limiting blocks are slidingly installed in the limiting grooves, and the limiting blocks are fixedly installed on the sliding blocks.
[0013] Preferably, stretchable flexible bellows are fixedly installed between the two fixed strips and transmission columns, and the movements of the two transmission columns can synchronously drive the stretchable flexible bellows to stretch or compress.
[0014] Preferably, threaded connection plates are fixedly installed on the side walls of the two connecting rods, the threaded connection plates are threadedly installed on the driving heads, a polishing head is arranged on the surface of the driving head, and the polishing head is located between the transmission columns.
[0015] Preferably, a power button is arranged on the upper end of the handheld polisher, and a power cord is arranged on the distal end of the side of the handheld polisher away from the driving head.
[0016] (Three) beneficial effects
[0017] Firstly, the integral stable polishing structure is arranged, so that the universal wheels are always located on the two sides of the polishing head and closely contact the grinding tool when the grinding tool is polished, thereby providing support and assistance on the two sides, the polishing head moves more stably and is subjected to more uniform stress when polishing the grinding tool, damage caused by shaking, deviation and local excessive wear is reduced, reliability and stability are improved, and the return springs are utilized to ensure that the universal wheels can continuously adhere to the surface of the grinding tool during polishing of the grinding tool, and flexibility is further improved.
[0018] Secondly, by setting the stretchable flexible bellows connected between the fixed strip and the transmission column, the stretchable flexible bellows can avoid the problems such as jamming caused by the debris generated during polishing entering the friction position between the transmission column and the fixed strip without affecting the movement of the transmission column, and improve the reliability. BRIEF DESCRIPTION OF DRAWINGS
[0019] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, the following will be described in detail with the preferred embodiment of the present application and with the help of the drawings.
[0020] Figure 1 It is a perspective view of the present application;
[0021] Figure 2 It is an exploded view of the present application;
[0022] Figure 3 It is an exploded view of the connecting rod of the present application;
[0023] Figure 4 It is a sectional view of the fixed strip of the present application;
[0024] Figure 5 It is an enlarged view of the structure A in the present application. Figure 4
[0025] Legend: 11, handheld polisher body; 12, drive head; 13, connecting rod; 14, fixed strip; 15, return spring; 16, transmission plate; 17, transmission column; 18, universal wheel; 19, sliding groove; 21, sliding block; 22, limiting groove; 23, limiting block; 24, threaded connection plate; 25, polishing head; 26, jog button; 27, power cord; 28, storage groove; 29, stretchable flexible bellows. DETAILED DESCRIPTION
[0026] The embodiment of the application provides a inner wall polishing mechanism for mold modification, effectively solves the technical problem of insufficient stability of the existing device, and through the setting of the integrated stable polishing structure, the staff can provide two-side support assistance when polishing the mold to be modified, so that the polishing head is more stable and the stress is more uniform when polishing the mold, reduces damage caused by shaking, deviation and local excessive wear, improves reliability and stability, and through the use of the reset spring, the universal wheel can be continuously attached to the surface of the mold during the polishing process of the staff, further improves flexibility, and through the setting of the stretchable flexible bellows connected between the fixed strip and the transmission column, the problem of jamming caused by the debris generated during polishing entering the friction between the transmission column and the fixed strip can be avoided without affecting the movement of the transmission column, and the reliability is improved.
[0027] Embodiment
[0028] As shown in Figure 1 - Figure 5 The technical scheme in the embodiment of the application effectively solves the technical problem of insufficient stability of the existing device, and the general idea is as follows:
[0029] In view of the problems in the prior art, the utility model provides a inner wall polishing mechanism for mold modification, including handheld polisher body 11, handheld polisher body 11 surface is equipped with drive head 12;
[0030] The drive head 12 side wall is symmetrically provided with an integrated stable polishing structure;
[0031] The integrated stable polishing structure includes connecting rods 13, two connecting rods 13 side walls are fixedly installed with fixed strips 14, the shape of the combination of the two connecting rods 13 and the fixed strips 14 is "L", two fixed strips 14 are internally provided with storage grooves 28, two storage grooves 28 inner walls are fixedly installed with reset springs 15, two reset springs 15 side walls are fixedly installed with transmission plates 16, two transmission plates 16 are located in the storage groove 28 and are slidingly installed, two transmission plates 16 side walls are fixedly installed with transmission columns 17, two transmission columns 17 are partially exposed to the outside of the fixed strip 14, two reset springs 15 side walls are fixedly installed with transmission plates 16, transmission columns 17 and universal wheels 18, and the stretch action of the two reset springs 15 can drive the transmission plates 16, transmission columns 17 and universal wheels 18 to move synchronously;
[0032] By setting the integrated stable grinding structure, when the staff grinds the modified grinding tool, the universal wheel 18 will always be located on both sides of the grinding head 25 and close to the grinding tool, so as to provide support assistance on both sides, so that the grinding head 25 moves more smoothly and evenly when grinding the grinding tool, reduces damage caused by shaking, deviation and local excessive wear, improves reliability, and at the same time, by using the reset spring 15, when the universal wheel 18 encounters a groove or the like on the grinding tool, the reset spring 15 will be stretched adaptively, so as to ensure that the universal wheel 18 can continuously adhere to the surface of the grinding tool during the grinding process of the grinding tool, further improving flexibility.
[0033] The inner wall of the storage groove 28 is symmetrically provided with a sliding groove 19, each sliding groove 19 is located on both sides of the transmission plate 16, each sliding groove 19 is internally and slidably provided with a sliding block 21, each sliding block 21 is fixedly installed with the transmission plate 16, and each sliding groove 19 is internally provided with a limiting groove 22, each limiting groove 22 is internally and slidably provided with a limiting block 23, and each limiting block 23 is fixedly installed with the sliding block 21.
[0034] By setting the sliding groove 19 and the limiting groove 22, when the transmission column 17 and the transmission plate 16 move, the movement of the transmission plate 16 will drive the sliding block 21 and the limiting block 23 to slide in the sliding groove 19 and the limiting groove 22 respectively, so as to provide additional limiting and increase the stability of the transmission plate 16 when moving.
[0035] The stretchable flexible bellows 29 is fixedly installed between the two fixed strips 14 and the transmission column 17, and the movement of the two transmission columns 17 can synchronously drive the stretchable flexible bellows 29 to stretch or compress.
[0036] By setting the stretchable flexible bellows 29 connected between the fixed strip 14 and the transmission column 17, the problem of jamming caused by the friction between the transmission column 17 and the fixed strip 14 due to the debris generated during grinding can be avoided without affecting the movement of the transmission column 17, thereby improving the reliability.
[0037] The screw connection plates 24 are symmetrically fixedly installed on the side walls of the two connecting rods 13, each screw connection plate 24 is screwed with the driving head 12, the driving head 12 is provided with a grinding head 25, and the grinding head 25 is located between the transmission columns 17.
[0038] By setting the integrated stable grinding structure, the structure is integrated on the connecting rod 13 and the fixed strip 14, so that the overall structure is compact, and at the same time, the screw connection plate 24 can be directly installed, so that the existing basis can be conveniently modified, and the modification cost is reduced.
[0039] The handheld polisher body 11 is provided with a jog button 26 at the upper end, and is provided with a power cord 27 at the end away from the driving head 12;
[0040] The jog button 26 is arranged to control the motor in the driving head 12, so as to control the polishing head 25, and the power cord 27 is arranged to supply power to the handheld polisher body 11.
[0041] Working principle:
[0042] Firstly, when in use, the worker supplies power to the handheld polisher body 11 through the power cord 27, and then controls the driving head 12 to start through the jog button 26, so as to drive the polishing head 25 to rotate, and then the worker presses the end face of the polishing head 25 to the position to be modified on the grinding tool, at this time, the pressing of the polishing head 25 will generate an upward pushing force on the universal wheel 18, so as to move the transmission column 17 and the transmission plate 16 to the side of the reset spring 15, at this time, the movement of the transmission plate 16 will drive the sliding block 21 and the limiting block 23 to slide in the sliding groove 19 and the limiting groove 22 respectively, and the reset spring 15 will be compressed, at the same time, the movement of the transmission column 17 will drive the stretchable flexible bellows 29 to adaptively stretch or compress;
[0043] Secondly, when the worker controls the polishing head 25 on the handheld polisher body 11 to move on the grinding tool, the universal wheel 18 will adaptively rotate, and when encountering the inclined groove or the like position on the grinding tool, the reset spring 15 will be adaptively stretched, so as to ensure that the universal wheel 18 can continuously adhere to the surface of the grinding tool during the worker polishes the grinding tool, so as to always guide the polishing head 25 on both sides.
[0044] Finally, it should be noted that: obviously, the above embodiments are only examples for clearly illustrating the present application, and are not limited to the implementation. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can be made. Here, it is not necessary and impossible to enumerate all the implementation. The obvious changes or variations derived therefrom are still within the protection scope of the present application.
Claims
1. A mold modification inner wall polishing mechanism, comprising a handheld polisher body (11), the surface of the handheld polisher body (11) is provided with a driving head (12), characterized in that: The driving head (12) is symmetrically provided with an integrated stable polishing structure on the side wall; The integrated stable polishing structure comprises connecting rods (13), two fixed bars (14) are fixedly installed on the side walls of the connecting rods (13), two storage grooves (28) are formed in the fixed bars (14), reset springs (15) are fixedly installed on the inner walls of the storage grooves (28), transmission plates (16) are fixedly installed on the side walls of the reset springs (15), and the transmission plates (16) are slidingly installed in the storage grooves (28); Wherein, transmission columns (17) are fixedly installed on the side walls of the transmission plates (16), universal wheels (18) are arranged on the side walls of the transmission columns (17), and the stretching actions of the reset springs (15) can drive the transmission plates (16), the transmission columns (17) and the universal wheels (18) to move synchronously.
2. A mechanism for polishing the inner wall of a mold for modification according to claim 1, wherein The storage grooves (28) are symmetrically provided with sliding grooves (19) on the inner walls; Wherein, sliding blocks (21) are slidingly installed in the sliding grooves (19), and the sliding blocks (21) are fixedly installed with the transmission plates (16).
3. A mechanism for polishing the inner wall of a mold for modification according to claim 2, wherein Limiting grooves (22) are formed in the sliding grooves (19), and limiting blocks (23) are slidingly installed in the limiting grooves (22); Wherein, the limiting blocks (23) are fixedly installed with the sliding blocks (21).
4. A mechanism for polishing the inner wall of a mold for modification according to claim 3, wherein Stretchable flexible bellows (29) are fixedly installed between the fixed bars (14) and the transmission columns (17); Wherein, the movements of the transmission columns (17) can synchronously drive the stretchable flexible bellows (29) to stretch or compress.
5. A mechanism for polishing the inner wall of a mold for modification according to claim 4, wherein Threaded connection plates (24) are symmetrically fixedly installed on the side walls of the connecting rods (13); Wherein, the threaded connection plates (24) are threadedly installed with the driving head (12).
6. A mechanism for polishing the inner wall of a mold for modification according to claim 5, wherein The driving head (12) is provided with a polishing head (25); Wherein, a jog button (26) is arranged on the upper end of the handheld polisher body (11), and a power cord (27) is arranged on the distal end of the side of the handheld polisher body (11) away from the driving head (12).
Citation Information
Patent Citations
Handheld grinding tool
CN220113002U