Side fixed metal mold

Abstract

This invention discloses a side-fixed metal mold, including a base, on which fixed templates are symmetrically fixedly mounted, and movable templates are symmetrically slidably connected. Each movable template has multiple cavities on its inner wall, one of which has a convex groove on its inner wall. A T-shaped rack is slidably connected to the inner wall of the convex groove. A rotating rod is rotatably connected through the inner walls of the multiple cavities. Multiple first gears are fixedly connected to the side wall of the rotating rod. Multiple lifting mechanisms are provided inside each cavity to improve demolding efficiency. This invention, by setting up structures such as T-shaped racks, first gears, and concave racks, utilizes the lever mechanism to amplify the force, causing the other end of a rocker to drive a striking block to strike the inner wall of the cavity. Therefore, during the demolding process of the metal mold, the striking vibration helps the metal workpiece in the cavity of the movable template to detach, improving the demolding effect.

Description

Technical Field

[0001] This invention relates to the field of metal mold technology, and more specifically to a side-fixed metal mold. Background Technology

[0002] A search revealed patent document CN202222749005.7: a side-fixed metal mold, comprising a metal mold assembly, the metal mold assembly including a metal mold base plate and metal mold fixing plates located on the front and rear sides of the upper end of the metal mold base plate, with movable metal mold side plates installed on both the left and right sides between the two metal mold fixing plates, and the movable metal mold side plates slidably connected to the metal mold fixing plates; side adjustment components for adjusting the movable metal mold side plates are installed on both outer sides of the metal mold assembly, and the side adjustment components are slidably connected to the metal mold assembly through a fixing frame and a moving component. Adding movable side plates to the metal mold makes side fixing and adjustment of the metal mold more convenient and quick, but it also has some shortcomings, such as:

[0003] When demolding metal molds, the surface of the molded metal parts often has a large adhesion force, which affects the demolding effect. Furthermore, if the surface of the metal mold is not cleaned in time after use, there is a risk that dirt will cause corrosion and damage to the mold surface, thereby reducing the service life of the metal mold.

[0004] To address this, we propose a side-fixed metal mold. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art by proposing a side-fixed metal mold.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A side-fixed metal mold includes a base, on which fixed templates are symmetrically fixedly mounted, and movable templates are symmetrically slidably connected to the base. Each movable template has multiple cavities on its inner wall, one of which has a convex groove on its inner wall. A T-shaped rack is slidably connected to the inner wall of the convex groove. A rotating rod is rotatably connected through the inner walls of the multiple cavities. Multiple first gears are fixedly connected to the side wall of the rotating rod. Multiple lifting mechanisms to improve demolding efficiency are provided inside each cavity.

[0008] Each lifting mechanism includes a first rack slidably connected to the inner wall of the cavity, a second gear rotatably connected to the inner wall of each cavity, a concave plate rack slidably connected to the inner side wall of the cavity, a speed-multiplying gear rotatably connected to the inner side wall of one end of the concave plate rack, a stationary rack fixedly connected to the inner side wall of the cavity, a movable rack slidably connected to the inner side wall of the cavity, a limit rod fixedly connected to one end of the movable rack, a rocker plate rotatably connected to the inner side wall of the cavity via a round shaft, a striking block fixedly connected to one end of the rocker plate, and a rectangular hole opened at the other end of the rocker plate.

[0009] Preferably, the inner wall of the cavity is slidably connected with multiple ejector columns, and a tension spring is fixedly connected to the side wall of each ejector column. The other end of the tension spring is fixedly connected to the side wall of the movable template. A wedge-shaped hole is formed on the top wall of the ejector column, and a wedge-shaped block is slidably connected to the inclined part of the wedge-shaped hole. The wedge-shaped block is slidably connected to the side wall of the adjacent first rack. The side wall of the first rack has multiple grooves. A displacement sensor is fixedly connected to the inner side wall of the convex groove. A mating groove is formed on the side wall of the wedge-shaped block. The mating groove has a convex-shaped structure, and a T-shaped plate is elastically connected to the inner wall of the mating groove through multiple magnetic springs.

[0010] Preferably, a first connecting rod is fixedly connected to the top of one of the T-shaped racks, a front rack is slidably connected through the side wall of the first connecting rod, a return spring is fixedly connected to the side wall of the front rack, and the other end of the return spring is fixedly connected to the side wall of the first connecting rod. A second connecting rod is fixedly connected to the top wall of the other T-shaped rack, a rear rack is slidably connected through the side wall of the second connecting rod, a return spring is fixedly connected to the side wall of the rear rack, and the other end of the return spring is fixedly connected to the side wall of the second connecting rod.

[0011] Preferably, a support frame is symmetrically fixedly connected to the base, a top plate is fixedly connected to the top of the support frame, a motor is fixedly installed on the side wall of the top plate, and a drive gear is fixedly connected to the output end of the motor.

[0012] Preferably, a connecting frame is fixedly connected to the bottom wall of the top plate, and a mating gear is rotatably connected to the inner side wall of the connecting frame. Two vertical racks are slidably connected through the top wall of the top plate, and a cleaning plate is fixedly connected to the bottom end of the vertical racks. The cleaning plate has a U-shaped structure, and multiple rinsing nozzles are installed at an angle on the side wall of the cleaning plate.

[0013] Preferably, the mating gear and the vertical rack are meshed together, and toothed belts are fixedly connected to the side walls of both the front and rear racks, and the toothed belts are meshed together with the adjacent mating gear.

[0014] Preferably, the front rack is meshed with the drive gear, the rear rack is meshed with the drive gear, and the rear rack and the front rack are respectively located on both sides of the drive gear.

[0015] Preferably, the T-shaped rack is meshed with an adjacent first gear, the first gear is meshed with a first rack, the first rack is meshed with a second gear, and the second gear is meshed with a concave plate rack.

[0016] Preferably, the speed-multiplying gear and the stationary rack are meshed together, the speed-multiplying gear and the moving rack are meshed together, the limiting rod and the inner wall of the rectangular hole slide against each other, and the top wall of the base is symmetrically fixedly connected with limiting blocks.

[0017] Preferably, the displacement sensor and the magnetic spring are electrically connected, the T-shaped plate slides a certain distance and is inserted into one of the grooves, and the teeth on the side of the first rack are arranged intermittently.

[0018] Compared with existing technologies, the advantages of this invention are:

[0019] 1. Turn on the motor. By setting up structures such as T-shaped racks, first gears, and concave plate racks, multiple moving racks move at double the speed. Through the limit rod and rectangular hole, they drive the rocker to rotate rapidly. Then, by using the lever mechanism to amplify the force, the other end of the rocker will drive the striking block to strike the inner wall of the cavity with increased force. Therefore, during the demolding process of the metal mold, the striking of the inner wall of the cavity by multiple striking blocks can effectively strike and vibrate the mold, which helps the metal forming workpiece in the movable mold cavity to detach and improve the demolding effect.

[0020] 2. Then, under the action of the displacement sensor, the magnetic spring is energized and contracts. As the first rack continues to move upward, it will drive the wedge block to move synchronously through the T-shaped plate. The wedge block drives the ejector column to slide a certain distance through the wedge hole into which it is embedded, so that one end of the ejector column slides in the inner cavity of the fixed template and the movable template, pushing the formed metal part to produce a small displacement, which makes it convenient to remove the formed metal part later.

[0021] 3. As the front rack and rear rack continue to move away from each other, the rotating gear drives the vertical rack to move downward a certain distance. The vertical rack will then drive the cleaning plate and multiple rinsing nozzles fixedly connected to its bottom to move downward a certain distance, and clean the mold through the rinsing nozzles.

[0022] 4. Before the metal mold manufacturing begins, the motor is turned on, and the output of the motor drives the drive gear to rotate. The drive gear drives the front rack and rear rack that are meshed with it to move, thereby causing the two movable templates to move closer to each other by different distances. This changes the size of the internal cavity of the metal mold, thus solving the problem in the background technology that existing metal molds can only form and manufacture parts of a single size. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the external structure of a side-fixed metal mold proposed in this invention;

[0024] Figure 2 for Figure 1 Enlarged schematic diagram of section A of the structure;

[0025] Figure 3 This is a schematic diagram showing the positional relationship between two movable templates in a side-fixed metal mold proposed in this invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the hollow cavity in a side-fixed metal mold proposed in this invention;

[0027] Figure 5 This is a schematic diagram showing the positional relationship between the rectangular hole and the limiting rod in a side-fixed metal mold proposed in this invention;

[0028] Figure 6 This is a schematic diagram showing the positional relationship between the front rack, rear rack, and drive gear in a side-fixed metal mold proposed in this invention.

[0029] Figure 7 This is a schematic diagram of the internal structure of the mating groove in a side-fixed metal mold proposed in this invention;

[0030] Figure 8 This is a schematic diagram showing the connection relationship between the wedge-shaped hole and the wedge block in a side-fixed metal mold proposed in this invention.

[0031] In the diagram: 1. Base; 2. Support frame; 3. Fixed template; 4. Movable template; 5. Cavity; 6. T-shaped rack; 7. Rotating rod; 8. First gear; 9. First rack; 10. Concave plate rack; 11. Speed-doubling gear; 12. Stationary rack; 13. Moving rack; 14. Second gear; 15. Return spring; 16. Round shaft; 17. Limiting rod; 18. Rocker; 19. Rectangular hole; 20. Striking block; 21. Convex groove; 23. Displacement sensor; 4. Ejector column; 25. Wedge hole; 26. Wedge block; 27. Mating groove; 28. Magnetic spring; 29. ​​T-shaped plate; 30. Groove; 31. Tension spring; 32. Top plate; 33. Limiting block; 34. Motor; 35. Drive gear; 36. First connecting rod; 37. Front rack; 38. Rear rack; 39. Second connecting rod; 40. Connecting frame; 41. Mating gear; 42. Vertical rack; 43. Cleaning plate; 44. Rinsing nozzle; 45. Toothed belt. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 1 - Figure 8 A side-fixed metal mold includes a base 1, on which fixed templates 3 are symmetrically fixedly mounted, and movable templates 4 are symmetrically slidably connected to the base 1. The two movable templates 4 and the two fixed templates 3 form a U-shaped closed internal cavity of the metal mold. Multiple cavities 5 are formed on the inner wall of each movable template 4 (e.g., ...). Figure 4 As shown), a convex groove 21 is provided on the inner wall of one of the cavities 5, and a T-shaped rack 6 is slidably connected to the inner wall of the convex groove 21. A rotating rod 7 is rotatably connected through the inner walls of multiple cavities 5. Multiple first gears 8 are fixedly connected to the side wall of the rotating rod 7. Multiple lifting mechanisms to improve demolding efficiency are provided inside each cavity 5.

[0034] Each lifting mechanism includes a first rack 9 slidably connected to the inner wall of cavity 5, a second gear 14 rotatably connected to the inner wall of each cavity 5, a concave plate rack 10 slidably connected to the inner side wall of cavity 5, a speed-doubling gear 11 rotatably connected to the inner side wall of one end of the concave plate rack 10, a stationary rack 12 fixedly connected to the inner side wall of cavity 5, a movable rack 13 slidably connected to the inner side wall of cavity 5, a limit rod 17 fixedly connected to one end of the movable rack 13, a round shaft 16 rotatably connected to the inner side wall of cavity 5, a rocker 18 fixedly connected to the side wall of the round shaft 16, a striking block 20 fixedly connected to one end of the rocker 18, and a rectangular hole 19 opened at the other end of the rocker 18.

[0035] Multiple ejector posts 24 are slidably connected through the inner wall of cavity 5. Tension springs 31 are fixedly connected to the side walls of ejector posts 24, and the other end of the tension springs 31 is fixedly connected to the side wall of movable template 4. A wedge-shaped hole 25 is provided on the top wall of ejector posts 24 (e.g., ...). Figure 8 As shown), a wedge-shaped block 26 is slidably connected to the inclined portion of the wedge-shaped hole 25, meaning that the wedge-shaped block 26 is always in contact with the inclined portion of the wedge-shaped hole 25. The wedge-shaped block 26 is slidably connected to the side wall of the adjacent first rack 9, and the side wall of the first rack 9 has multiple grooves 30 (as shown). Figure 7 As shown), a displacement sensor 23 is fixedly connected to the inner wall of the convex groove 21. The displacement sensor 23 is existing technology and will not be described in detail here. The wedge block 26 has a mating groove 27 on its side wall (as shown). Figure 7As shown, the mating groove 27 has a convex shape. A T-shaped plate 29 is slidably connected inside the mating groove 27. Multiple magnetic springs 28 are fixedly connected to the inner wall of the mating groove 27. The other end of each magnetic spring 28 is fixedly connected to the T-shaped plate 29. The magnetic springs 28 are existing technology. After the magnetic springs 28 are energized, due to the electromagnetic induction phenomenon, the magnetic springs 28 interact with the current in the external magnetic field to generate different magnitudes of tension to control the stretching deformation and movement state of the magnetic springs 28. That is, the magnetic springs 28 can contract a certain distance after being energized.

[0036] One of the T-shaped racks 6 has a first connecting rod 36 fixedly connected to its top. A front rack 37 is slidably connected through the side wall of the first connecting rod 36. A return spring 15 is fixedly connected to the side wall of the front rack 37. The other end of the return spring 15 is fixedly connected to the side wall of the first connecting rod 36. The other T-shaped rack 6 has a second connecting rod 39 fixedly connected to its top wall. A rear rack 38 is slidably connected through the side wall of the second connecting rod 39. A return spring 15 is fixedly connected to the side wall of the rear rack 38. The other end of the return spring 15 is fixedly connected to the side wall of the second connecting rod 39.

[0037] A support frame 2 is symmetrically fixedly connected to the base 1. A top plate 32 is fixedly connected to the top of the support frame 2. A motor 34 is fixedly installed on the side wall of the top plate 32. A drive gear 35 is fixedly connected to the output end of the motor 34.

[0038] A connecting frame 40 is fixedly connected to the bottom wall of the top plate 32. A mating gear 41 is rotatably connected to the inner side wall of the connecting frame 40. Two vertical racks 42 are slidably connected through the top wall of the top plate 32. A cleaning plate 43 is fixedly connected to the bottom of the vertical racks 42. The cleaning plate 43 has a U-shaped structure. Multiple rinsing nozzles 44 are installed at an angle on the side wall of the cleaning plate 43.

[0039] The gear 41 and the vertical rack 42 are meshed and connected. The front rack 37 and the rear rack 38 are both fixedly connected to the side walls of the toothed belt 45, which meshes with the adjacent gear 41.

[0040] The front rack 37 is meshed with the drive gear 35, and the rear rack 38 is meshed with the drive gear 35. The rear rack 38 and the front rack 37 are respectively located on both sides of the drive gear 35.

[0041] T-shaped rack 6 meshes with the adjacent first gear 8, the first gear 8 meshes with the first rack 9, the first rack 9 meshes with the second gear 14, the second gear 14 meshes with the concave plate rack 10, and the speed-multiplying gear 11 is rotatably connected to the inner wall of the concave portion of the concave plate rack 10.

[0042] The speed-multiplying gear 11 meshes with the stationary rack 12, and the speed-multiplying gear 11 meshes with the moving rack 13. The limiting rod 17 slides against the inner wall of the rectangular hole 19, and the limiting block 33 is symmetrically fixedly connected to the top wall of the base 1.

[0043] The displacement sensor 23 and the magnetic spring 28 are electrically connected. After the T-shaped plate 29 slides a certain distance, it is inserted and connected to one of the grooves 30. The tooth groups on the side of the first rack 9 are arranged intermittently, that is, each tooth group consists of multiple consecutive teeth. Multiple tooth groups are fixed on the side wall of the first rack 9.

[0044] In this invention, after the casting of the metal mold is completed, the motor 34 is turned on. The motor 34 is a forward and reverse motor. When the output end of the motor 34 drives the drive gear 35 fixedly connected to it to rotate, the drive gear 35 will drive the front rack 37 meshing with it to move to the right a certain distance. The front rack 37 drives the first connecting rod 36 to move to the right through the corresponding return spring 15. The drive gear 35 will also drive the second connecting rod 39 to move to the left a certain distance through the rear rack 38 and the corresponding return spring 15. Then the first connecting rod 36 will drive the T-shaped rack 6 fixedly connected to it to move synchronously, and the second connecting rod 39 will drive the T-shaped rack 6 fixedly connected to it to move synchronously. The two T-shaped racks 6 move in opposite directions.

[0045] During the movement of each T-shaped rack 6, it will first slide inside the convex groove 21, and the displacement sensor 23 will detect the displacement of the T-shaped rack 6. During the movement, the T-shaped rack 6 will drive the first gear 8 meshing with it to rotate a certain angle. The first gear 8 will drive the first rack 9 meshing with it to move upward. The first rack 9 will drive multiple second gears 14 to rotate. Each second gear 14 will drive the concave plate rack 10 meshing with it to slide a certain distance. The concave plate rack 10 will drive the speed-multiplying gear 11 to move synchronously. Since the speed-multiplying gear 11 is meshed with the stationary rack 12 and the moving rack 13 respectively, the speed-multiplying gear 11 will move synchronously during the movement. During the process, rotation can also be generated, which doubles the movement speed of the moving rack 13. The moving rack 13 will drive the limiting rod 17 to move synchronously and quickly. The limiting rod 17 will drive the rocker 18 to rotate quickly through the rectangular hole 19. By setting the rotation position of the round shaft 16 on the rocker 18, the rocker 18 forms a lever structure. The other end of the rocker 18 will drive the striking block 20 to strike the inner wall of the cavity 5 with increased force. During the demolding process of the metal mold, the striking of the inner wall of the cavity 5 by multiple striking blocks 20 can effectively strike and vibrate the mold, which helps the metal forming workpiece in the mold cavity of the movable template 4 to detach and improve the demolding effect.

[0046] Next, each set of teeth intermittently distributed on the sidewall of the first rack 9 will disengage from the corresponding second gear 14. Under the action of the displacement sensor 23, the magnetic spring 28 will be energized through its built-in controller. After being energized, the magnetic spring 28 will contract a certain distance, which will drive the T-shaped plate 29 to move a certain distance, so that the T-shaped plate 29 is inserted into one of the grooves 30. As the first rack 9 continues to move upward, it will drive the wedge block 26 to move synchronously through the T-shaped plate 29. The wedge block 26 drives the ejector post 24 to slide a certain distance through the wedge hole 25 into which it is embedded and slid. This causes one end of the ejector post 24 to slide in the inner cavity of the fixed template 3 and the movable template 4, pushing the formed metal part to produce a small displacement, which facilitates the subsequent removal of the formed metal part.

[0047] After the T-shaped rack 6 and the inner wall of the convex groove 21 come into contact, one of the T-shaped racks 6 will drive the movable template 4 to move to the left, while the other T-shaped rack 6 will drive the movable template 4 to move to the right, until the movable template 4 comes into contact with the limit block 33 after moving a certain distance. At this time, the movable template 4 is at the farthest end of its travel, and the operator can take out the formed metal mold.

[0048] At this time, since the front rack 37 and the rear rack 38 are still moving away from each other, while the movable template 4 is stationary, the front rack 37 and the rear rack 38 will both drive the toothed belt 45 to continue moving until it meshes with the corresponding mating gear 41. After the mating gear 41 rotates, it will drive the vertical rack 42 to move downward a certain distance. The vertical rack 42 will then drive the cleaning plate 43 and multiple rinsing nozzles 44 fixedly connected to its bottom to move downward a certain distance. The rinsing nozzles 44 are fixedly connected to the external water pipes, and the mold is cleaned through the rinsing nozzles 44.

[0049] Before the metal mold manufacturing begins, the motor 34 is turned on. The output end of the motor 34 drives the drive gear 35 to rotate. The drive gear 35 drives the front rack 37 and the rear rack 38 that are meshed with it to move, thereby causing the two movable templates 4 to move closer to each other by different distances. This can change the size of the internal cavity of the metal mold and expand the applicable range of the metal mold.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A side fixed metal mold comprising a base (1) on which a fixed mold plate (3) is symmetrically fixedly installed, characterized in that, The base (1) is symmetrically connected with a movable template (4) through sliding, the inner wall of the movable template (4) is provided with a plurality of cavities (5), the inner wall of one of the cavities (5) is provided with a convex groove (21), the inner wall of the convex groove (21) is connected with a T-shaped rack (6) through sliding, the inner wall of the plurality of cavities (5) is connected with a rotating rod (7) through rotating, the side wall of the rotating rod (7) is fixedly connected with a plurality of first gears (8), the cavity (5) is provided with a plurality of groups of lifting mechanisms for improving demolding efficiency, each group of the lifting mechanisms comprises a first rack (9) connected with the inner wall of the cavity (5) through sliding, the inner wall of each cavity (5) is rotatably connected with a second gear (14), the inner side wall of the cavity (5) is connected with a concave plate rack (10) through sliding, the inner side wall of one end of the concave plate rack (10) is rotatably connected with a speed-up gear (11), the inner side wall of the cavity (5) is fixedly connected with a static rack (12), the inner side wall of the cavity (5) is connected with a dynamic rack (13) through sliding, the side wall of one end of the dynamic rack (13) is fixedly connected with a limiting rod (17), the inner side wall of the cavity (5) is rotatably connected with a warped plate (18) through a round shaft (16), one end of the warped plate (18) is fixedly connected with a knocking block (20), the other end of the warped plate (18) is provided with a rectangular hole (19), the inner wall of the cavity (5) is connected with a plurality of push-out columns (24) through sliding, the side wall of the push-out column (24) is fixedly connected with a tensile spring (31) through sleeving, the other end of the tensile spring (31) and the side wall of the movable template (4) are fixedly connected, the top wall of the push-out column (24) is provided with a wedge-shaped hole (25), the inclined surface part of the wedge-shaped hole (25) is embedded with a wedge-shaped block (26) through sliding, the wedge-shaped block (26) is connected with the side wall of the adjacent first rack (9) through sliding, the side wall of the first rack (9) is provided with a plurality of grooves (30), the inner side wall of the convex groove (21) is fixedly connected with a displacement sensor (23), the side wall of the wedge-shaped block (26) is provided with a matching groove (27), the matching groove (27) is in a convex letter structure, the inner wall of the matching groove (27) is elastically connected with a T-shaped plate (29) through a plurality of magnetic springs (28), the T-shaped rack (6) is meshingly connected with the adjacent first gear (8), the first gear (8) is meshingly connected with the first rack (9), the first rack (9) is meshingly connected with the second gear (14), the second gear (14) is meshingly connected with the concave plate rack (10), the speed-up gear (11) is meshingly connected with the static rack (12), the speed-up gear (11) is meshingly connected with the dynamic rack (13), the limiting rod (17) and the inner side wall of the rectangular hole (19) are abuttingly and slidably connected, the top wall of the base (1) is fixedly connected with a limiting block (33), the displacement sensor (23) and the magnetic spring (28) are electrically connected, the T-shaped plate (29) is connected with one of the grooves (30) through insertion after sliding for a distance, the teeth of the side part of the first rack (9) are arranged in an intermittent mode.

2. The side fixed die according to claim 1, wherein One of said T-shaped rack (6) top fixedly connected with the first connecting rod (36), the first connecting rod (36) side wall through the sliding connection has a front rack (37), the front rack (37) side wall set fixedly connected with the reset spring (15), the other end of the reset spring (15) and the first connecting rod (36) side wall fixedly connected, another said T-shaped rack (6) top wall fixedly connected with the second connecting rod (39), the second connecting rod (39) side wall through the sliding connection has a rear rack (38), the rear rack (38) side wall set fixedly connected with the reset spring (15), the other end of the reset spring (15) and the second connecting rod (39) side wall fixedly connected, the base (1) on the symmetry fixedly connected with the support frame (2), the support frame (2) top fixedly connected with the top plate (32), the top plate (32) side wall fixedly installed with motor (34), the output end of the motor (34) fixedly connected with the drive gear (35), the top plate (32) bottom wall fixedly connected with the connecting frame (40), the connecting frame (40) inner side wall rotationally connected with the matching gear (41), the top plate (32) top wall through the sliding connection has two vertical rack (42), the vertical rack (42) bottom end fixedly connected with the cleaning plate (43), the cleaning plate (43) is a mouth-shaped structure, the cleaning plate (43) side wall obliquely installed with a plurality of flush heads (44), the matching gear (41) and vertical rack (42) meshing connection, the front rack (37) and rear rack (38) side wall are fixedly connected with the toothed belt (45), the toothed belt (45) and the adjacent matching gear (41) meshing connection, the front rack (37) and drive gear (35) meshing connection, the rear rack (38) and drive gear (35) meshing connection, the rear rack (38) and front rack (37) are respectively arranged on both sides of the drive gear (35) position.

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