Automatic separating device for pot spraying

Abstract

The invention discloses an automatic disengaging device for cookware spraying, and relates to the technical field of cookware spraying, the automatic disengaging device comprises a base, a shell is vertically arranged on the base in a sliding mode, a first limiting piece used for clamping cookware is arranged on the shell, and the first limiting piece is driven by a driving assembly to be rotationally arranged on the shell; the base is further provided with a second limiting piece used for supporting the cookware, and the second limiting piece is driven by vertical sliding of the cookware to be rotationally arranged on the base. According to the automatic disengaging device for pot spraying, the first limiting piece and the second limiting piece are used for limiting the pot in different modes, the first limiting piece and the second limiting piece are switched, and therefore the effect that the interior and the exterior of the pot can be sprayed is achieved, and when spraying operation is conducted on the pot, the pot can be separated from the pot, and the pot can be separated from the pot. And the fixing effect on the cookware can be improved, and therefore the situation that due to shaking of the cookware, the spraying uniformity of the cookware is affected is avoided as much as possible.

Description

Technical Field

[0001] The invention relates to the technical field of pot spraying, and in particular to an automatic disengagement device for pot spraying. Background Art

[0002] Spraying a pot means spraying a coating with special properties on the surface of the pot to improve the performance of the pot. The main purpose of spraying a pot is to improve the durability, aesthetics and functionality of the pot. Through spraying, a protective film can be formed on the surface of the pot to prevent the pot from being scratched, corroded or worn during use. At the same time, spraying can also increase the gloss and color diversity of the pot and improve the aesthetics of the product. In addition, some special coatings, such as non-stick coatings, can also improve the cooking efficiency and convenience of the pot.

[0003] When spraying the existing cookware, in order to increase the service life of the cookware, it is necessary to spray the inner and outer surfaces of the cookware. When the existing detachment device is used to spray the cookware, only the outer surface (or inner surface) of the cookware can be sprayed. When the cookware needs to be sprayed on both the inner and outer surfaces, the staff is required to manually turn it over, which not only increases the workload of the staff but also affects the spraying efficiency of the cookware. Moreover, when the existing detachment device is in use, the cookware is placed on the detachment device, which easily causes the cookware to shake on the detachment device, resulting in uneven spraying of the cookware during the spraying operation, thereby affecting the spraying effect of the cookware to a certain extent. Summary of the invention

[0004] The object of the present invention is to provide an automatic disengagement device for spraying pots to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic detachment device for spraying cookware, comprising a base, a shell being vertically slidably arranged on the base, a first limit member for clamping the cookware being arranged on the shell, the first limit member being driven and rotated by a driving assembly and arranged on the shell; a second limit member for supporting the cookware is also arranged on the base, which is driven and rotated by the vertical sliding of the cookware and is arranged on the base.

[0006] Furthermore, a lifting member is arranged on the top surface of the base, a mounting seat is fixedly mounted on the output end of the lifting member, and the shell is fixedly mounted on the top surface of the mounting seat.

[0007] Furthermore, a screw is rotatably provided on the first limiting member, and the screw is provided with two threaded sections with opposite rotation directions, and each of the threaded sections is threadedly connected with an outer clamping plate.

[0008] Furthermore, the driving assembly includes a first motor fixedly mounted inside the shell, a first rotating shaft fixedly mounted on the output end of the first motor, a worm fixedly mounted on the circumferential surface of the first rotating shaft; a second rotating shaft is rotatably arranged on the shell, a worm wheel matching the worm fixedly mounted on the circumferential surface of the second rotating shaft.

[0009] Furthermore, a fixed cylinder is fixedly installed on the circumference of the second rotating shaft, a first gear is fixedly installed on the circumference of the fixed cylinder, and a cylindrical rack meshing with the first gear is slidably inserted on the shell; a second gear is fixedly installed on the middle circumference of the screw, and the second gear meshes with the cylindrical rack.

[0010] Furthermore, the drive assembly also includes a second motor fixedly mounted inside the shell, and a third gear is fixedly mounted on the output end of the second motor; a third rotating shaft also rotates inside the shell, the first limit member is fixedly mounted on the end face of the third rotating shaft, a fourth gear meshing with the third gear is fixedly mounted on the other end of the third rotating shaft, and the cylindrical rack is slidably sleeved on the circumferential surface of the third rotating shaft.

[0011] Furthermore, a support seat is fixedly mounted on the base, a threaded barrel is fixedly mounted on the support seat, and an internal thread of the threaded barrel is connected to a threaded rod.

[0012] Furthermore, a support plate is rotatably mounted on the top surface of the threaded rod, a fixed plate is fixedly mounted on the support plate, a plurality of slide rails are radially slidably arranged on the top surface of the fixed plate, and an inner support plate is fixedly mounted on the top surface of each slide rail.

[0013] Furthermore, a rotating ring is sleeved on the circumferential surface of the fixed disk, which is driven and rotated by the transmission component and is arranged on the fixed disk; a plurality of arc-shaped slide grooves are opened on the rotating ring, and a slider is slidably arranged inside each of the arc-shaped slide grooves, and each of the slide rails is fixedly installed on the top surface of each slider.

[0014] Furthermore, the transmission assembly includes a rotating disk fixedly mounted on the threaded rod, a fifth gear fixedly mounted on the top surface of the rotating disk; a rotating frame rotatably arranged on the top surface of the rotating disk, a rotating rod rotatably arranged on the rotating frame, a sixth gear and a seventh gear fixedly mounted on the circumferential surface of the rotating rod, the sixth gear meshing with the fifth gear; an annular rack meshing with the seventh gear fixedly mounted on the circumferential surface of the rotating ring.

[0015] In the above technical solution, the present invention provides an automatic disengagement device for spraying pots, which has the following beneficial effects: By utilizing the first limiting member, the two outer clamping plates on the first limiting member can move toward each other, thereby achieving the effect of clamping and limiting the pot, and further achieving the effect of spraying the inside of the pot.

[0016] By utilizing the second limiting member, after the inside of the cookware on the first limiting member is sprayed, the cookware between the two outer clamping plates is flipped over by utilizing the driving assembly, and by utilizing the lifting member, the cookware can be supported internally by utilizing the multiple inner supporting plates on the second limiting member during the process of vertically sliding downward under the action of the lifting member, thereby enabling the cookware to be limited on the second limiting member, thereby achieving the effect of being able to spray the outside of the cookware.

[0017] Therefore, by utilizing the first limiting member and the second limiting member to limit the cookware in different ways and switching between the first limiting member and the second limiting member, not only can the inside and outside of the cookware be sprayed, but also the fixing effect of the cookware can be improved when the cookware is sprayed, thereby avoiding as much as possible the situation where the shaking of the cookware affects the uniformity of the spraying of the cookware. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 The embodiment of the present invention provides Figure 1 A side view schematic diagram of the structure; Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the cross-sectional structure along the AA direction; Figure 4 The embodiment of the present invention provides Figure 3 The structural diagram at A in the middle; Figure 5 The embodiment of the present invention provides Figure 3 Schematic diagram of the structure at B in the middle; Figure 6 The embodiment of the present invention provides Figure 1 A schematic diagram of the three-dimensional structure of the middle housing and the first limiting member; Figure 7 The embodiment of the present invention provides Figure 6Schematic diagram of the internal structure of the middle shell; Figure 8 The embodiment of the present invention provides Figure 7 Schematic diagram of the structure at C in the middle; Fig. 9 The embodiment of the present invention provides Figure 1 A schematic diagram of the three-dimensional structure of the middle support seat and the second limiting member; Fig.10 The embodiment of the present invention provides Fig. 9 Schematic diagram of the local structure; Fig.11 The embodiment of the present invention provides Fig. 9 Schematic diagram of the partially disassembled structure; Fig.12 The embodiment of the present invention provides Fig.11 Schematic diagram of the local structure; Fig.13 The embodiment of the present invention provides Fig.10 Schematic diagram of the three-dimensional structure of the rotating ring.

[0020] Description of reference numerals: 1. Base; 2. Lifting member; 3. Mounting seat; 4. Shell; 401. First motor; 402. First rotating shaft; 403. Worm; 404. First supporting plate; 405. Second rotating shaft; 406. Worm gear; 407. Fixed cylinder; 408. First gear; 409. Cylindrical rack; 410. Screw; 411. Second gear; 412. External clamping plate; 413. Second motor; 414. Third gear; 415 , second support plate; 416, third rotating shaft; 417, fourth gear; 5, first limit member; 6, support seat; 61, threaded cylinder; 62, threaded rod; 7, second limit member; 71, support plate; 72, fixed plate; 73, slide rail; 74, inner support plate; 75, rotating plate; 76, fifth gear; 77, sixth gear; 78, seventh gear; 79, rotating ring; 791, annular rack; 792, arc-shaped slide groove. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] See also Figure 1-13 An automatic detachment device for spraying pots provided in an embodiment of the present invention comprises a base 1, a shell 4 is vertically slidably arranged on the base 1, a first limiter 5 for clamping the pot is arranged on the shell 4, and the first limiter 5 is driven and rotated by the driving assembly and is arranged on the shell 4; a second limiter 7 for supporting the pot is also arranged on the base 1, which is driven and rotated by the vertical sliding of the pot and is arranged on the base 1.

[0023] In the above technical scheme, by utilizing the first limiting member 5, the two outer clamping plates 412 on the first limiting member 5 can be moved in a direction close to each other, thereby achieving the effect of clamping and limiting the cookware, and further achieving the effect of spraying the inside of the cookware; and by utilizing the second limiting member 7, after spraying the inside of the cookware on the first limiting member 5, the cookware between the two outer clamping plates 412 is flipped over by utilizing the driving assembly, and by utilizing the lifting member 2, the cookware can be supported internally by utilizing the multiple inner supporting plates 74 on the second limiting member 7 during the process of vertically sliding downward under the action of the lifting member 2, so that the cookware can be limited on the second limiting member 7, thereby achieving the effect of spraying the outside of the cookware.

[0024] Specifically, a lifting member 2 is disposed on the top surface of the base 1 , a mounting seat 3 is fixedly mounted on the output end of the lifting member 2 , and the shell 4 is fixedly mounted on the top surface of the mounting seat 3 .

[0025] In the above technical solution, by utilizing the lifting member 2, after the inside of the pot is sprayed with the first limiting member 5, the pot can be driven to slide vertically downward under the action of the lifting member 2 after it is flipped over by the first driving assembly.

[0026] Specifically, a screw rod 410 is rotatably provided on the first position-limiting member 5 , and two threaded sections with opposite rotation directions are provided on the screw rod 410 , and each threaded section is threadedly connected with an outer clamping plate 412 .

[0027] Furthermore, the driving assembly includes a first motor 401 fixedly mounted inside the shell 4, a first rotating shaft 402 is fixedly mounted on the output end of the first motor 401, a first supporting plate 404 is fixedly mounted inside the shell 4, the first rotating shaft 402 is rotatably mounted on the first supporting plate 404, a worm 403 is fixedly mounted on the circumferential surface of the first rotating shaft 402; a second rotating shaft 405 is rotatably mounted on the shell 4, a worm wheel 406 matching the worm 403 is fixedly mounted on the circumferential surface of the second rotating shaft 405.

[0028] Furthermore, a fixed cylinder 407 is fixedly installed on the circumference of the second rotating shaft 405, a first gear 408 is fixedly installed on the circumference of the fixed cylinder 407, and a cylindrical rack 409 meshing with the first gear 408 is slidably inserted on the shell 4; a second gear 411 is fixedly installed on the middle circumference of the screw 410, and the second gear 411 meshes with the cylindrical rack 409.

[0029] In the above technical solution, by using the first motor 401, the first shaft 402 on the second support plate 415 can be rotated under the action of the first motor 401, and by using the mutual cooperation between the worm 403 on the first shaft 402 and the worm wheel 406 on the second shaft 405, the second shaft 405 on the first support plate 404 can be driven to rotate, and then the cylindrical rack 409 on the housing 4 can be driven to slide relative to the housing 4 by the mutual cooperation between the first gear 408 and the cylindrical rack 409, and the cylindrical rack 409 can be used to rotate. The rack 409 cooperates with the second gear 411 on the screw 410, so that the sliding of the cylindrical rack 409 drives the screw 410 on the first limit member 5 to rotate. Since two threaded ends with opposite rotation directions are provided on the circumferential surface of the screw 410, when the screw 410 rotates, the two outer clamping plates 412 on the screw 410 can be driven to move towards each other, so that the two outer clamping plates 412 can clamp the outer surface of the cookware. Therefore, by clamping the outer surface of the cookware, the inside of the cookware can be sprayed.

[0030] Specifically, the driving assembly also includes a second motor 413 fixedly mounted inside the shell 4, and a third gear 414 is fixedly mounted on the output end of the second motor 413; a third rotating shaft 416 also rotates inside the shell 4, and a second support plate 415 is also fixedly mounted inside the shell 4, and the second rotating shaft 405 is rotatably set on the second support plate 415, the first limit member 5 is fixedly mounted on the end face of the third rotating shaft 416, and a fourth gear 417 meshing with the third gear 414 is fixedly mounted on the other end of the third rotating shaft 416, and a cylindrical rack 409 is slidably sleeved on the circumferential surface of the third rotating shaft 416.

[0031] In the above technical solution, by utilizing the second motor 413, after the inside of the pot is sprayed, the third gear 414 and the fourth gear 417 on the second support plate 415 cooperate with each other to drive the third rotating shaft 416 on the second support plate 415 to rotate, thereby achieving the effect of driving the pot on the first limit member 5 to flip over.

[0032] Specifically, a support seat 6 is fixedly mounted on the base 1 , a threaded cylinder 61 is fixedly mounted on the support seat 6 , and a threaded rod 62 is connected to the inner thread of the threaded cylinder 61 .

[0033] Furthermore, a support plate 71 is rotatably mounted on the top surface of the threaded rod 62, a fixed plate 72 is fixedly mounted on the support plate 71, a plurality of slide rails 73 are radially slidably arranged on the top surface of the fixed plate 72, and an inner support plate 74 is fixedly mounted on the top surface of each slide rail 73.

[0034] Furthermore, the transmission assembly includes a rotating disk 75 fixedly mounted on the threaded rod 62, and a fifth gear 76 is fixedly mounted on the top surface of the rotating disk 75; a rotating frame is rotatably arranged on the top surface of the rotating disk 75, the rotating frame is fixedly mounted on the bottom surface of the supporting disk 71, and a rotating rod is rotatably arranged on the rotating frame, a sixth gear 77 and a seventh gear 78 are fixedly mounted on the circumferential surface of the rotating rod, and the sixth gear 77 is meshed with the fifth gear 76; an annular rack 791 meshed with the seventh gear 78 is fixedly mounted on the circumferential surface of the rotating ring 79.

[0035] In the above technical solution, by utilizing the threaded barrel 61 on the support seat 6 and the threaded rod 62 in the threaded barrel 61, when the cookware flipped on the first limit member 5 is vertically slid by the lifting member 2, the cookware presses the support plate 71, so that the threaded rod 62 on the bottom surface of the support seat 6 can rotate relative to the threaded barrel 61. By utilizing the transmission assembly, the threaded rod 62 rotates, and the fifth gear 76 and the sixth gear 77 on the threaded rod 62 cooperate with each other, so that the rotating rod on the rotating frame rotates. By utilizing the seventh gear 78 and the annular rack 791 on the rotating ring 79, the rotating ring 79 can rotate relative to the support plate 71.

[0036] Specifically, a rotating ring 79 is sleeved on the circumferential surface of the fixed disk 72, which is driven by the transmission component to rotate on the fixed disk 72; a plurality of arc-shaped slide grooves 792 are opened on the rotating ring 79, and a slider is slidably arranged inside each arc-shaped slide groove 792, and each slide rail 73 is fixedly installed on the top surface of each slider.

[0037] In the above technical solution, by rotating the rotating ring 79 relative to the supporting plate 71, the rotating ring 79 can drive the sliders on the multiple slide rails 73 to rotate along the direction of the arc-shaped slide groove 792 while rotating, and then the multiple slide rails 73 on the multiple fixed plates 72 can slide along the radial direction of the supporting plate 71, so that when the cookware is turned over and abuts against the fixed plate 72, the inner surface of the cookware can be expanded with the help of the inner support plates 74 on the multiple slide rails 73, so that the turned cookware can be limited on the fixed plate 72, thereby achieving the effect of spraying the outer surface of the cookware.

[0038] Working principle: By utilizing the first motor 401, the first rotating shaft 402 on the second supporting plate 415 can be rotated under the action of the first motor 401, and by utilizing the mutual cooperation between the worm 403 on the first rotating shaft 402 and the worm wheel 406 on the second rotating shaft 405, the second rotating shaft 405 on the first supporting plate 404 can be driven to rotate, and then by utilizing the mutual cooperation between the first gear 408 and the cylindrical rack 409, the cylindrical rack 409 on the housing 4 can be driven to slide relative to the housing 4, and by utilizing the cylindrical rack The first stopper 5 is driven to rotate by the sliding of the cylindrical rack 409 and the second gear 411 on the screw 410. Since the circumferential surface of the screw 410 is provided with two thread ends with opposite rotation directions, the two outer clamping plates 412 on the screw 410 can be driven to move toward each other when the screw 410 rotates, so that the two outer clamping plates 412 can clamp the outer surface of the pot. Therefore, by clamping the outer surface of the pot, the inside of the pot can be sprayed. After the inside of the pot is sprayed, the second motor 413 is used to drive the third rotating shaft 416 on the second supporting plate 415 to rotate by utilizing the cooperation between the third gear 414 and the fourth gear 417 on the second supporting plate 415, thereby achieving the effect of driving the pot on the first limiting member 5 to flip over; Then, by using the lifting member 2, after the inside of the pot is sprayed with the first stopper 5, the pot can be turned over by the first driving assembly, and the pot can be driven to slide vertically downward under the action of the lifting member 2, that is, to slide vertically toward the direction close to the second stopper 7; By utilizing the threaded barrel 61 on the support seat 6 and the threaded rod 62 in the threaded barrel 61, when the cookware flipped over on the first limit member 5 is vertically slid by the lifting member 2, the cookware presses the support plate 71, so that the threaded rod 62 on the bottom surface of the support seat 6 can rotate relative to the threaded barrel 61. By utilizing the transmission assembly, the threaded rod 62 rotates, and the fifth gear 76 and the sixth gear 77 on the threaded rod 62 cooperate with each other, so that the rotating rod on the rotating frame rotates. By utilizing the mutual cooperation between the seventh gear 78 and the annular rack 791 on the rotating ring 79, the rotating ring 79 can rotate. The ring 79 can rotate relative to the support plate 71; by virtue of the rotation of the rotating ring 79 relative to the support plate 71, the rotating ring 79 can drive the sliders on the multiple slide rails 73 to rotate along the direction of the arc-shaped slide groove 792 while rotating, and then the multiple slide rails 73 on the multiple fixed plates 72 can slide along the radial direction of the support plate 71, so that when the cookware is turned over and abuts against the fixed plate 72, the inner surface of the cookware can be expanded with the help of the inner support plates 74 on the multiple slide rails 73, so that the turned cookware can be limited on the fixed plate 72, thereby achieving the effect of spraying the outer surface of the cookware.

[0039] In order to avoid the situation that the two outer clamping plates 412 block the spraying position when the outer surface of the cookware is sprayed, the first motor 401 is driven to reverse, so that the cylindrical rack 409 on the shell 4 can slide in the opposite direction, and the cooperation between the cylindrical rack 409 and the second gear 411 is utilized to drive the screw 410 on the first limit member 5 to rotate in the opposite direction, so that the two outer clamping plates 412 on the screw 410 can move away from each other, so that the two outer clamping plates 412 no longer clamp the outer surface of the cookware, which can not only make the turned cookware automatically detach from the first limit member 5, but also facilitate the spraying of the outer surface of the cookware, and avoid the situation that the outer clamping plates 412 block the cookware spraying when the outer surface of the cookware is sprayed. The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic detachment device for spraying pots, comprising a base (1), characterized in that: A shell (4) is vertically slidably disposed on the base (1), a first stopper (5) for clamping the cookware is disposed on the shell (4), and the first stopper (5) is driven and rotated by the driving assembly and is disposed on the shell (4); The base (1) is also provided with a second limiting member (7) for supporting the cookware, which is driven to rotate on the base (1) by vertical sliding of the cookware.

2. The automatic disengagement device for spraying pots according to claim 1, characterized in that: A lifting member (2) is provided on the top surface of the base (1), a mounting seat (3) is fixedly mounted on the output end of the lifting member (2), and the shell (4) is fixedly mounted on the top surface of the mounting seat (3).

3. The automatic disengagement device for spraying pots according to claim 2, characterized in that: A screw rod (410) is rotatably arranged on the first limiting member (5), and the screw rod (410) is provided with two threaded sections with opposite rotation directions, and each of the threaded sections is threadedly connected to an outer clamping plate (412).

4. The automatic disengagement device for spraying pots according to claim 3, characterized in that: The driving assembly comprises a first motor (401) fixedly mounted inside the housing (4); a first rotating shaft (402) is fixedly mounted on the output end of the first motor (401); and a worm (403) is fixedly mounted on the circumference of the first rotating shaft (402); A second rotating shaft (405) is rotatably arranged on the housing (4), and a worm wheel (406) matching with the worm (403) is fixedly mounted on the circumferential surface of the second rotating shaft (405).

5. The automatic disengagement device for spraying pots according to claim 4, characterized in that: A fixed cylinder (407) is fixedly mounted on the circumference of the second rotating shaft (405), a first gear (408) is fixedly mounted on the circumference of the fixed cylinder (407), and a cylindrical rack (409) meshing with the first gear (408) is slidably inserted on the housing (4); A second gear (411) is fixedly mounted on the middle circumferential surface of the screw rod (410), and the second gear (411) is meshed with the cylindrical rack (409).

6. The automatic disengagement device for spraying pots according to claim 5, characterized in that: The driving assembly further comprises a second motor (413) fixedly mounted inside the housing (4), and a third gear (414) is fixedly mounted on the output end of the second motor (413); A third rotating shaft (416) also rotates inside the shell (4); the first limiting member (5) is fixedly mounted on the end surface of the third rotating shaft (416); a fourth gear (417) meshing with the third gear (414) is fixedly mounted on the other end of the third rotating shaft (416); and the cylindrical rack (409) is slidably sleeved on the circumferential surface of the third rotating shaft (416).

7. The automatic disengagement device for spraying pots according to claim 1, characterized in that: A support seat (6) is fixedly mounted on the base (1), a threaded barrel (61) is fixedly mounted on the support seat (6), and a threaded rod (62) is connected to the internal thread of the threaded barrel (61).

8. The automatic disengagement device for spraying pots according to claim 7, characterized in that: A support plate (71) is rotatably mounted on the top surface of the threaded rod (62), a fixed plate (72) is fixedly mounted on the support plate (71), a plurality of slide rails (73) are radially slidably arranged on the top surface of the fixed plate (72), and an inner support plate (74) is fixedly mounted on the top surface of each slide rail (73).

9. The automatic disengagement device for spraying pots according to claim 8, characterized in that: A rotating ring (79) is sleeved on the circumferential surface of the fixed disk (72), and is driven and rotated by the transmission assembly and is arranged on the fixed disk (72); The rotating ring (79) is provided with a plurality of arc-shaped slide grooves (792), each arc-shaped slide groove (792) is provided with a sliding block slidably disposed inside, and each sliding rail (73) is fixedly mounted on the top surface of each sliding block.

10. The automatic disengagement device for spraying pots according to claim 9, characterized in that: The transmission assembly comprises a rotating disk (75) fixedly mounted on the threaded rod (62), and a fifth gear (76) is fixedly mounted on the top surface of the rotating disk (75); A rotating frame is rotatably arranged on the top surface of the rotating disk (75), a rotating rod is rotatably arranged on the rotating frame, a sixth gear (77) and a seventh gear (78) are fixedly mounted on the circumference of the rotating rod, and the sixth gear (77) is meshed with the fifth gear (76); An annular rack (791) meshing with the seventh gear (78) is fixedly mounted on the circumferential surface of the rotating ring (79).

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