CN212918816U - Grinding machine for refrigerator handle - Google Patents

Grinding machine for refrigerator handle Download PDF

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Publication number
CN212918816U
CN212918816U CN202021437931.5U CN202021437931U CN212918816U CN 212918816 U CN212918816 U CN 212918816U CN 202021437931 U CN202021437931 U CN 202021437931U CN 212918816 U CN212918816 U CN 212918816U
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China
Prior art keywords
plate
area
handle
cylinder
refrigerator
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Active
Application number
CN202021437931.5U
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Chinese (zh)
Inventor
龚航
陈胜迁
陈立
李海波
宋韬
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Zhangjiajie Institute of Aeronautical Engineering
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Zhangjiajie Institute of Aeronautical Engineering
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Priority to CN202021437931.5U priority Critical patent/CN212918816U/en
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Abstract

The utility model relates to the technical field of accessories for refrigerator production, in particular to a grinding machine for a refrigerator handle, which can assist workers to grind two ends of the refrigerator handle by mechanical means; the automatic grinding device comprises a bottom plate, four groups of supporting legs, an upright post, a sliding plate, a box body, a connecting plate, a rotating rod, a rotary table and a motor, wherein a transmission shaft is arranged at the output end of the bottom of the motor, a first ball bearing is arranged between the bottom end of the transmission shaft, which penetrates through a rotating hole, and the inner side wall of the rotating hole, a grinding wheel is arranged at the bottom end of the transmission shaft, a rotating groove is arranged in the central area of the top end of the box body, and a second ball; still including removing seat, first cylinder, workstation, preceding backup pad, back backup pad, diaphragm, second cylinder, first clamp plate and second clamp plate, first cylinder left part output is provided with first telescopic link, and second cylinder bottom output is provided with the second telescopic link.

Description

Grinding machine for refrigerator handle
Technical Field
The utility model relates to a technical field of refrigerator production auxiliary device especially relates to a polisher for refrigerator handle.
Background
As is well known, a sander for a refrigerator handle is an auxiliary device for sanding both ends of a refrigerator handle, which is widely used in the field of refrigerator production; the prior polisher for refrigerator handles comprises a bottom plate, four groups of supporting legs, an upright post, a sliding plate, a box body, a connecting plate, a rotating rod, a rotating disk and a motor, wherein the top ends of the four groups of supporting legs are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom end of the bottom plate, a square hole is longitudinally formed in the central area of the top end of the sliding plate, the bottom end of the upright post penetrates through the square hole and is connected with the right half area of the top end of the bottom plate, the left end of the sliding plate is connected with the central area of the right side wall of the box body, a placing cavity is formed in the box body, a rotating hole is formed in the central area of the bottom end of the box body, the motor is arranged in the placing cavity, a transmission shaft is arranged at, a rotating groove is formed in the central area of the top end of the box body, external threads are formed in the upper half area of the outer side wall of the rotating rod, the top end of the rotating rod penetrates through the threaded hole in a threaded mode and is connected with the central area of the bottom end of the rotating disc, and a second ball bearing is arranged between the bottom end of the rotating rod and the inner side wall of the rotating groove; when the existing polisher for the refrigerator handle is used, a motor is powered on, the motor drives a transmission shaft to rotate, the transmission shaft drives a polishing wheel to rotate, an operator holds the refrigerator handle by hand, two ends of the refrigerator handle are sequentially contacted with the polishing wheel, the two ends of the refrigerator handle are polished by the polishing wheel, and the height of the polishing wheel can be adjusted by rotating a turntable according to the actual operation height of the operator; the existing grinding machine for the refrigerator handle is found in use, workers hold the refrigerator handle by hands, and the grinding wheel can grind the two ends of the refrigerator handle in the process, so that the refrigerator handle can shake, the grinding quality is easily influenced, and the use reliability of the refrigerator handle is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an accessible mechanical means assists the staff to polish to the both ends of refrigerator handle, improves the polisher that is used for the refrigerator handle of use reliability.
The utility model discloses a polisher for refrigerator handles, which comprises a bottom plate, four groups of supporting legs, a stand column, a sliding plate, a box body, a connecting plate, a rotating rod, a rotating disk and a motor, wherein the top ends of the four groups of supporting legs are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom end of the bottom plate, a square hole is longitudinally arranged in the central area of the top end of the sliding plate, the bottom end of the stand column passes through the square hole and is connected with the right half area of the top end of the bottom plate, the left end of the sliding plate is connected with the central area of the right side wall of the box body, a placing cavity is arranged in the box body, a rotating hole is arranged in the central area of the bottom end of the box body, the motor is arranged in the placing cavity, a transmission shaft is arranged at the output end of, a rotating groove is formed in the central area of the top end of the box body, external threads are formed in the upper half area of the outer side wall of the rotating rod, the top end of the rotating rod penetrates through the threaded hole in a threaded mode and is connected with the central area of the bottom end of the rotating disc, and a second ball bearing is arranged between the bottom end of the rotating rod and the inner side wall of the rotating groove; the movable base comprises a movable base, a first air cylinder, a workbench, a front support plate, a rear support plate, a transverse plate, a second air cylinder, a first pressing plate and a second pressing plate, wherein a sliding groove is formed in the left half area of the top end of the bottom plate, the bottom end of the movable base is slidably fixed in the sliding groove, a through hole is transversely formed in the lower half area of the left side wall of the upright column, the first air cylinder is installed in the right half area of the top end of the bottom plate, a first telescopic rod is arranged at the left output end of the first air cylinder, the left end of the first telescopic rod penetrates through the through hole and is connected with the upper half area of the right side wall of the movable base, a fixing groove is formed in the central area of the top end of the movable base, the bottom end of the workbench is inserted into the fixing groove, a third ball bearing is arranged between the bottom end of the workbench and the fixing groove, the top ends of, the central area of the top end of the transverse plate is longitudinally provided with a telescopic hole, the second cylinder is installed at the top end of the transverse plate, the output end of the bottom of the second cylinder is provided with a second telescopic rod, the bottom end of the second telescopic rod penetrates through the telescopic hole and is connected with the central area of the top end of the first pressing plate, and the bottom end of the first pressing plate is connected with the central area of the top end of the workbench.
The utility model discloses a polisher for refrigerator handle still includes preceding dead lever and back dead lever, preceding dead lever and back dead lever top are connected with first cylinder front end and rear end respectively, and preceding dead lever and back dead lever bottom are connected with bottom plate top right front side and right back side respectively.
The utility model discloses a polisher for refrigerator handle still installs pole and back installation pole before including, preceding installation pole and back installation pole top are connected with second cylinder front end and rear end respectively, and preceding installation pole and back installation pole bottom are connected with diaphragm top first half region and latter half region respectively.
The utility model discloses a polisher for refrigerator handle still includes four group's gyro wheels, four group's gyro wheels are rotatable the installation in four group's landing leg bottoms respectively.
The utility model discloses a polisher for refrigerator handle still includes the gusset plate, the gusset plate transverse installation is between four group's landing legs.
The utility model discloses a polisher for refrigerator handle still includes preceding handle and back handle, preceding handle rear end and back handle front end are connected with preceding lateral wall of workstation and back lateral wall central zone respectively.
The utility model discloses a polisher for refrigerator handle still includes the stopper, the stopper left end is connected with stand right side wall central authorities region.
The utility model discloses a polisher for refrigerator handle, box left side wall transversely is provided with three louvres of group.
Compared with the prior art, the beneficial effects of the utility model are that: the refrigerator handle is placed between a first pressing plate and a second pressing plate by an operator, the bottom end of the first pressing plate is of an arc structure, the top end of the second pressing plate is of a groove structure, the first pressing plate is controlled to move downwards by a second air cylinder, the refrigerator handle is fixed by the first pressing plate and the second pressing plate, the operator manually holds a workbench to enable one end of the refrigerator handle to be located on the right side, the first telescopic rod is controlled to move rightwards by the first air cylinder, the movable seat drives the movable seat to slide rightwards, the movable seat drives the refrigerator handle to move rightwards, the right end of the refrigerator handle is located below a polishing wheel, the operator assists the workbench by rotating a rotary table to enable the polishing wheel to move downwards until the polishing wheel is in contact with one end of the refrigerator handle, one end of the refrigerator handle is polished by the polishing wheel, and after polishing is completed, the polishing wheel is driven to move upwards through the turntable, the working personnel rotate the workbench, the other end of the polishing wheel is located below the polishing wheel, the turntable is rotated, the polishing wheel moves downwards, the other end of the refrigerator handle can be polished, the working personnel can be assisted by mechanical means to polish the two ends of the refrigerator handle, and the use reliability is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic left side view of a part of the structure of the present invention;
FIG. 3 is a schematic right side view of the connection of the base plate, the first cylinder, the front fixing rod and the rear fixing rod;
FIG. 4 is an enlarged view of a portion of FIG. 1;
FIG. 5 is a partial enlarged view of B in FIG. 1;
in the drawings, the reference numbers: 1. a base plate; 2. a support leg; 3. a column; 4. a slide plate; 5. a box body; 6. a connecting plate; 7. rotating the rod; 8. a turntable; 9. a motor; 10. a drive shaft; 11. a first ball bearing; 12. grinding the wheel; 13. a second ball bearing; 14. a movable seat; 15. a first cylinder; 16. a work table; 17. a front support plate; 18. a rear support plate; 19. a transverse plate; 20. a second cylinder; 21. a first platen; 22. a second platen; 23. a first telescopic rod; 24. a third ball bearing; 25. a second telescopic rod; 26. a front fixing rod; 27. a rear fixing rod; 28. a front mounting bar; 29. a rear mounting rod; 30. a roller; 31. a reinforcing plate; 32. a front handle; 33. a rear handle; 34. and a limiting block.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in figures 1 to 5, the polishing machine for refrigerator handles of the present invention comprises a bottom plate 1, four sets of legs 2, a column 3, a sliding plate 4, a box 5, a connecting plate 6, a rotating rod 7, a rotating disk 8 and a motor 9, wherein the tops of the four sets of legs 2 are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom end of the bottom plate 1, a central area of the top end of the sliding plate 4 is longitudinally provided with a square hole, the bottom end of the column 3 passes through the square hole and is connected with the right half area of the top end of the bottom plate 1, the left end of the sliding plate 4 is connected with the central area of the right side wall of the box 5, a placing cavity is arranged inside the box 5, a rotating hole is arranged in the central area of the bottom end of the box 5, the motor 9 is installed in the placing cavity, the output end of the bottom, the top end of the upright post 3 is connected with the right half area of the bottom end of the connecting plate 6, a threaded hole is longitudinally formed in the left half area of the top end of the connecting plate 6, a rotating groove is formed in the central area of the top end of the box body 5, external threads are formed in the upper half area of the outer side wall of the rotating rod 7, the top end of the rotating rod 7 penetrates through the threaded hole in a threaded mode and is connected with the central area of the bottom end of the rotating disc 8, and a second ball bearing 13 is arranged between the bottom; the automatic lifting device is characterized by further comprising a movable seat 14, a first air cylinder 15, a workbench 16, a front supporting plate 17, a rear supporting plate 18, a transverse plate 19, a second air cylinder 20, a first pressing plate 21 and a second pressing plate 22, a sliding groove is formed in the left half area of the top end of the bottom plate 1, the bottom end of the movable seat 14 is slidably fixed in the sliding groove, a through hole is transversely formed in the lower half area of the left side wall of the upright post 3, the first air cylinder 15 is installed in the right half area of the top end of the bottom plate 1, a first telescopic rod 23 is arranged at the left output end of the first air cylinder 15, the left end of the first telescopic rod 23 penetrates through the through hole and is connected with the upper half area of the right side wall of the movable seat 14, a fixing groove is formed in the central area of the top end of the movable seat 14, a third ball bearing 24 is arranged between the bottom end of the workbench 16 and the inner side wall of the fixing groove, the top ends of the front supporting plate A telescopic hole is longitudinally formed in the central area of the top end of the transverse plate 19, the second air cylinder 20 is installed at the top end of the transverse plate 19, a second telescopic rod 25 is arranged at the output end of the bottom of the second air cylinder 20, the bottom end of the second telescopic rod 25 penetrates through the telescopic hole and is connected with the central area of the top end of the first pressing plate 21, and the bottom end of the first pressing plate 21 is connected with the central area of the top end of the workbench 16; the refrigerator handle is placed between a first pressing plate and a second pressing plate by an operator, the bottom end of the first pressing plate is of an arc structure, the top end of the second pressing plate is of a groove structure, the first pressing plate is controlled to move downwards by a second air cylinder, the refrigerator handle is fixed by the first pressing plate and the second pressing plate, the operator manually holds a workbench to enable one end of the refrigerator handle to be located on the right side, the first telescopic rod is controlled to move rightwards by the first air cylinder, the movable seat drives the movable seat to slide rightwards, the movable seat drives the refrigerator handle to move rightwards, the right end of the refrigerator handle is located below a polishing wheel, the operator assists the workbench by rotating a rotary table to enable the polishing wheel to move downwards until the polishing wheel is in contact with one end of the refrigerator handle, one end of the refrigerator handle is polished by the polishing wheel, and after polishing is completed, the polishing wheel is driven to move upwards through the turntable, the working personnel rotate the workbench, the other end of the polishing wheel is located below the polishing wheel, the turntable is rotated, the polishing wheel moves downwards, the other end of the refrigerator handle can be polished, the working personnel can be assisted by mechanical means to polish the two ends of the refrigerator handle, and the use reliability is improved.
The utility model discloses a polisher for refrigerator handles, which further comprises a front fixing rod 26 and a rear fixing rod 27, wherein the top ends of the front fixing rod 26 and the rear fixing rod 27 are respectively connected with the front end and the rear end of the first cylinder 15, and the bottom ends of the front fixing rod 26 and the rear fixing rod 27 are respectively connected with the right front side and the right rear side of the top end of the bottom plate 1; the front fixing rod and the rear fixing rod can fix the first cylinder, and use reliability is improved.
The utility model discloses a polisher for refrigerator handles, which further comprises a front mounting rod 28 and a rear mounting rod 29, wherein the top ends of the front mounting rod 28 and the rear mounting rod 29 are respectively connected with the front end and the rear end of the second cylinder 20, and the bottom ends of the front mounting rod 28 and the rear mounting rod 29 are respectively connected with the front half area and the rear half area of the top end of the transverse plate 19; preceding installation pole and back installation pole can be fixed the second cylinder, improve stability in use.
The utility model discloses a polisher for refrigerator handles, which also comprises four groups of rollers 30, wherein the four groups of rollers 30 are respectively rotatably arranged at the bottom ends of the four groups of supporting legs 2; four groups of rollers can be convenient for the staff to remove the device, improve and use the flexibility.
The utility model discloses a polisher for refrigerator handles, which further comprises a reinforcing plate 31, wherein the reinforcing plate 31 is transversely arranged between four groups of supporting legs 2; the gusset plate can support four groups of landing legs, prevents that four groups of landing legs from taking place to rock, improves stability in use.
The utility model discloses a polisher for refrigerator handles, which also comprises a front handle 32 and a rear handle 33, wherein the rear end of the front handle 32 and the front end of the rear handle 33 are respectively connected with the central areas of the front side wall and the rear side wall of the workbench 16; preceding handle and back handle can be convenient for the staff and rotate the workstation, and the operation is comparatively laborsaving, improves and uses the convenience.
The utility model discloses a polisher for refrigerator handles, which also comprises a limiting block 34, wherein the left end of the limiting block 34 is connected with the central area of the right side wall of the upright post 3; the limiting block can limit the sliding plate, and the use safety is improved.
The utility model discloses a sander used for a refrigerator handle, three groups of heat dissipation holes are transversely arranged on the left side wall of a box body 5; three sets of heat dissipation holes can be used for dissipating heat of the motor, so that the air flow speed in the cavity is increased, and the service life of the motor is prolonged.
The utility model discloses a polisher for refrigerator handle, it is at the during operation, the motor circular telegram, motor drive transmission shaft rotates, the transmission shaft drives the wheel of polishing and rotates, the staff places the refrigerator handle between first clamp plate and second clamp plate, first clamp plate bottom is the arc structure, second clamp plate top is groove structure, control first clamp plate through the second cylinder and move down, fix the refrigerator handle through first clamp plate and second clamp plate, the staff holds up the workstation manually, make refrigerator handle one end be located the right side, control first telescopic link to move right through first cylinder, first telescopic link drives the removal seat and slides right, the removal seat drives the refrigerator handle and moves right, make refrigerator handle right-hand member be located the wheel of polishing and move down, staff auxiliary table, the carousel rotates, make the wheel of polishing move down, until the wheel of polishing contacts with one end of the refrigerator handle, one end of the refrigerator handle is polished by the polishing wheel, after polishing is completed, the polishing wheel is driven by the turntable to move upwards, a worker rotates the workbench to enable the other end of the polishing wheel to be located below the polishing wheel, the turntable is rotated to enable the polishing wheel to move downwards, the other end of the refrigerator handle can be polished, the worker can be assisted to polish the two ends of the refrigerator handle by mechanical means, and the use reliability is improved; the front fixing rod and the rear fixing rod can fix the first cylinder, so that the use reliability is improved; the front mounting rod and the rear mounting rod can fix the second cylinder, so that the use stability is improved; the four groups of rollers can facilitate workers to move the device, so that the use flexibility is improved; the reinforcing plate can support the four groups of supporting legs, so that the four groups of supporting legs are prevented from shaking, and the use stability is improved; the front handle and the rear handle can facilitate the working personnel to rotate the workbench, the operation is labor-saving, and the use convenience is improved; the limiting block can limit the sliding plate, so that the use safety is improved; three sets of heat dissipation holes can be used for dissipating heat of the motor, so that the air flow speed in the cavity is increased, and the service life of the motor is prolonged.
The utility model discloses a motor, first cylinder and second cylinder that a polisher for refrigerator handle used all purchase from the market, only need according to the description install use can.
The utility model discloses a polisher for refrigerator handle, above the mounting means, the connected mode or the mode that sets up of all parts are common mechanical system to the concrete structure, model and the coefficient index of all parts thereof are its from taking the technique, as long as can reach all can implementing of its beneficial effect, so do not add at much and give unnecessary detail.
The utility model relates to a sander used for a refrigerator handle, under the condition that no opposite explanation is made, the directional words contained in the terms of 'up-down, left-right, front-back, inside-outside, vertical and horizontal' and the like only represent the direction of the term under the normal use state, or be a trivial term understood by those skilled in the art, and should not be considered as limiting the term, at the same time, the numerical terms "first," "second," and "third," etc. do not denote any particular quantity or order, but rather are used to distinguish one from another, furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but also includes other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A grinding machine for a refrigerator handle comprises a bottom plate (1), four groups of supporting legs (2), an upright post (3), a sliding plate (4), a box body (5), a connecting plate (6), a rotating rod (7), a rotating disc (8) and a motor (9), wherein the top ends of the four groups of supporting legs (2) are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom end of the bottom plate (1), a square hole is longitudinally formed in the central area of the top end of the sliding plate (4), the bottom end of the upright post (3) penetrates through the square hole and is connected with the right half area of the top end of the bottom plate (1), the left end of the sliding plate (4) is connected with the central area of the right side wall of the box body (5), a placing cavity is formed in the box body (5), a rotating hole is formed in the central area of the bottom end of the box body (5), the motor (9) is installed in the placing cavity, a grinding wheel (12) is arranged at the bottom end of the transmission shaft (10), the top end of the upright post (3) is connected with the right half area of the bottom end of the connecting plate (6), a threaded hole is longitudinally formed in the left half area of the top end of the connecting plate (6), a rotating groove is formed in the central area of the top end of the box body (5), an external thread is arranged in the upper half area of the outer side wall of the rotating rod (7), the top end of the rotating rod (7) penetrates through the threaded hole in a threaded mode and is connected with the central area of the bottom end of the rotating disc (8), and a second ball bearing (13) is arranged; it is characterized by also comprising a moving seat (14), a first cylinder (15), a workbench (16), a front support plate (17), a rear support plate (18), a transverse plate (19), a second cylinder (20), a first press plate (21) and a second press plate (22), wherein the left half area of the top end of the bottom plate (1) is provided with a sliding groove, the bottom end of the moving seat (14) can be fixed in the sliding groove in a sliding way, the lower half area of the left side wall of the upright post (3) is transversely provided with a through hole, the first cylinder (15) is arranged in the right half area of the top end of the bottom plate (1), the left output end of the first cylinder (15) is provided with a first telescopic rod (23), the left end of the first telescopic rod (23) passes through the through hole and is connected with the upper half area of the right side wall of the moving seat (14), the central area of the top end of the moving seat (14) is provided with a fixed groove, the bottom end of the, preceding backup pad (17) and back backup pad (18) top are connected with diaphragm (19) bottom front half region and latter half region respectively, and preceding backup pad (17) and back backup pad (18) bottom are connected with workstation (16) top front half region and latter half region respectively, and diaphragm (19) top central area vertically is provided with flexible hole, install on diaphragm (19) top second cylinder (20), and second cylinder (20) bottom output is provided with second telescopic link (25), and flexible hole is passed and is connected with first clamp plate (21) top central area to second telescopic link (25) bottom, and first clamp plate (21) bottom is connected with workstation (16) top central area.
2. The sander for a refrigerator handle as set forth in claim 1, further comprising a front fixing bar (26) and a rear fixing bar (27), wherein the top ends of said front fixing bar (26) and said rear fixing bar (27) are connected to the front end and the rear end of said first cylinder (15), respectively, and the bottom ends of said front fixing bar (26) and said rear fixing bar (27) are connected to the front right side and the rear right side of the top end of said base plate (1), respectively.
3. A sander for a refrigerator handle according to claim 2, further comprising a front mounting bar (28) and a rear mounting bar (29), wherein the top ends of the front mounting bar (28) and the rear mounting bar (29) are connected to the front end and the rear end of the second cylinder (20), respectively, and the bottom ends of the front mounting bar (28) and the rear mounting bar (29) are connected to the front half area and the rear half area of the top end of the cross plate (19), respectively.
4. A sander for a refrigerator handle according to claim 3, further comprising four sets of rollers (30), wherein said four sets of rollers (30) are rotatably mounted to the bottom ends of said four sets of legs (2).
5. A sander for a refrigerator handle as set forth in claim 4, further comprising a reinforcing plate (31), said reinforcing plate (31) being installed transversely between four sets of legs (2).
6. A sander for a refrigerator handle according to claim 5, further comprising a front handle (32) and a rear handle (33), wherein a rear end of said front handle (32) and a front end of said rear handle (33) are connected to a central region of a front side wall and a rear side wall of said table (16), respectively.
7. A sander for a refrigerator handle as set forth in claim 6, further comprising a stopper (34), wherein the left end of said stopper (34) is connected to the central region of the right side wall of said pillar (3).
8. A sander for a refrigerator handle as set forth in claim 7, characterized in that three sets of heat dissipation holes are provided transversely to the left side wall of the case (5).
CN202021437931.5U 2020-07-21 2020-07-21 Grinding machine for refrigerator handle Active CN212918816U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021437931.5U CN212918816U (en) 2020-07-21 2020-07-21 Grinding machine for refrigerator handle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021437931.5U CN212918816U (en) 2020-07-21 2020-07-21 Grinding machine for refrigerator handle

Publications (1)

Publication Number Publication Date
CN212918816U true CN212918816U (en) 2021-04-09

Family

ID=75330938

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021437931.5U Active CN212918816U (en) 2020-07-21 2020-07-21 Grinding machine for refrigerator handle

Country Status (1)

Country Link
CN (1) CN212918816U (en)

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