Mold structure for injection molding of clean water tank cover of sweeping robot
Patent Information
- Application Number
- CN202422062744.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-26
AI Technical Summary
When injection molding, it is difficult to pull out the slider through conventional methods, resulting in difficulty in demolding.
A mold structure for injection molding of clean water tank cover of sweeping robot was designed, including upper mold kernel, slider and pull block. The slider is an open and closed two-flap structure. It is connected to the pulling block through the connecting plate. When the pulling block is moved upward, the flap body is opened in the direction of the arc-shaped inner concave surface by pulling the slider, thereby extracting the slider to achieve mold release.
It realizes easy extraction and mold release of the slider, and is suitable for making clean water tank covers of sweeping robots with arc-shaped inner concave surfaces and handles.
Smart Images
Figure CN223030248U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molding, in particular to a mold structure for injection molding a water tank cover of a floor sweeping robot. Background Art
[0002] Floor sweeping robots are common household appliances. To achieve functions such as wiping, mopping, and washing, most existing floor sweeping robots are equipped with a water tank for supplying clean water. To facilitate the removal of the water tank and minimize the height of the water tank as much as possible, most of the upper surfaces of the existing water tank covers are provided with an arc-shaped structure that is recessed downward. At the same time, a horizontal blocking structure is provided in the middle position to allow a hand to reach in for lifting operations, such as Figures 1 to 3 shows a water tank cover of a floor sweeping robot, in which the middle part of the upper surface is recessed downward to form an arc-shaped concave surface 1, and a handle 2 that is convenient to grasp is provided in the middle part. The handle 2 is located above the arc-shaped concave surface 1. Due to the blocking of the handle 2, when injection molding, it is difficult to extract the slider for forming the arc-shaped concave surface 1 and the bottom of the handle 2 by conventional methods such as direct ejection and inclined ejection, and the demolding is difficult. Summary of the Utility Model
[0003] The purpose of the utility model is to solve the problems existing in the prior art, and provide a mold structure for injection molding a water tank cover of a floor sweeping robot. This mold structure can conveniently extract the slider to achieve demolding, and is suitable for manufacturing a water tank cover of a floor sweeping robot with an arc-shaped concave surface and a handle.
[0004] To achieve the above purpose, the technical solution provided by the utility model is a mold structure for injection molding a water tank cover of a floor sweeping robot, including:
[0005] An upper mold core, a through groove for cooperating with a lower mold core to form the lower bottom surface of the water tank cover is opened in the middle of the upper mold core, and a cross beam for forming the upper surface of the handle on the water tank cover is erected in the through groove. The two ends of the cross beam are respectively vertically connected to the front side wall and the rear side wall of the through groove;
[0006] A slider, which is movably arranged in the through groove, and the slider is used for forming the arc-shaped concave surface on the water tank cover and the lower surface of the handle;
[0007] A pulling block, which is movably arranged up and down above the through groove, and the pulling block is connected to the slider through a connecting plate;
[0008] The slider is a two-piece structure that can be opened and closed. The slider includes a first body and a second body symmetrically distributed on the left and right sides of the cross beam. The surfaces of the first body and the second body facing each other are provided with a matching concave-convex structure;
[0009] The connecting plate extends vertically in the left-right direction. The connecting plate includes a first connecting plate and a second connecting plate. The upper end of the first connecting plate is rotatably connected to the pulling block through a first rotating shaft. The lower end of the first connecting plate is rotatably connected to the first valve body through a second rotating shaft. The upper end of the second connecting plate is rotatably connected to the pulling block through a third rotating shaft. The lower end of the second connecting plate is rotatably connected to the second valve body through a fourth rotating shaft. The first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft extend in a direction parallel to the cross beam.
[0010] When the pulling block moves upward, the first valve body and the second valve body can be pulled by the first connecting plate and the second connecting plate to open to both sides along the direction of the arc concave surface, so as to extract the sliding block and realize demoulding.
[0011] Preferably, the first rotating shaft and the third rotating shaft are the same rotating shaft, and this rotating shaft is detachably inserted into the pulling block in the left-right direction.
[0012] Preferably, a first avoidance groove for avoiding the lower end of the first connecting plate is formed on the first valve body, and a second avoidance groove for avoiding the lower end of the second connecting plate is formed on the second valve body.
[0013] Preferably, a third avoidance groove for avoiding the upper end of the first connecting plate and the upper end of the second connecting plate is formed on the pulling block.
[0014] Preferably, there are two first connecting plates arranged at intervals in the front-rear direction, and there are two second connecting plates arranged at intervals in the front-rear direction. The upper end of each first connecting plate is rotatably attached to the upper end of a second connecting plate, and the upper end of each second connecting plate is rotatably attached to the upper end of a first connecting plate.
[0015] Preferably, the injection mold structure for the water tank cover of the floor sweeping robot further includes a guiding component for guiding the opening and closing direction of the first valve body and the second valve body. The guiding component includes an insert groove formed on the upper mold core, an insert arranged in the insert groove, and a guiding rod. The insert groove is a flat-angle arc groove sunken at both ends. The insert groove is formed on the front side wall and / or the rear side wall of the through groove and penetrates the upper surface of the upper mold core. The two end parts of the lower surface of the insert are connected to the lowest points of the bottom wall of the insert groove. The middle part of the lower surface of the insert arches upward to form an arc surface. An equal-width guiding groove is formed between the arc surface and the bottom wall of the insert groove. The end part of the guiding rod is slidably inserted into the guiding groove. The guiding rod includes a first guiding rod rotatably inserted through the first valve body in the axial direction and a second guiding rod rotatably inserted through the second valve body in the axial direction.
[0016] Further preferably, there are two first guide rods which are arranged at intervals, and there are two second guide rods which are arranged at intervals.
[0017] Further preferably, a rotatable collar is sleeved on the end of the guide rod, and the collar is slidably embedded in the guide groove.
[0018] Preferably, the second rotating shaft penetrates through the first flap body in the front-rear direction, and a first locking bolt for locking the second rotating shaft is connected to the first flap body. When the first locking bolt is tightened, its end extends into the milling plane on the surface of the second rotating shaft, so that the relative position between the second rotating shaft and the first flap body is kept locked; the fourth rotating shaft penetrates through the second flap body in the front-rear direction, and a second locking bolt for locking the fourth rotating shaft is connected to the second flap body. When the second locking bolt is tightened, its end extends into the milling plane on the surface of the fourth rotating shaft, so that the relative position between the fourth rotating shaft and the second flap body is kept locked.
[0019] Preferably, the first rotating shaft and the third rotating shaft penetrate through the pulling block in the front-rear direction, and a third locking bolt for locking the first rotating shaft and the third rotating shaft is further connected to the pulling block. When the third locking bolt is tightened, its end extends into the milling planes on the surfaces of the first rotating shaft and the third rotating shaft, so that the relative positions between the first rotating shaft, the third rotating shaft and the pulling block are kept locked.
[0020] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0021] The injection mold structure for the water tank cover of the floor sweeping robot provided by the utility model includes an upper mold core, a slider and a pulling block. By making the slider a two-piece structure that can be opened and closed, it includes a first flap body and a second flap body symmetrically distributed on the left and right sides of the cross beam of the upper mold core. On the opposite surfaces of the first flap body and the second flap body, there are matching concave-convex fitting structures, so that the connecting plate extends vertically in the left-right direction. The connecting plate includes a first connecting plate and a second connecting plate. The upper end of the first connecting plate is rotationally connected to the pulling block through a first rotating shaft, and its lower end is rotationally connected to the first flap body through a second rotating shaft. The upper end of the second connecting plate is rotationally connected to the pulling block through a third rotating shaft, and its lower end is rotationally connected to the second flap body through a fourth rotating shaft. The first, second, third and fourth rotating shafts extend in a direction parallel to the cross beam. When the pulling block moves upward, the first flap body and the second flap body can be pulled by the first connecting plate and the second connecting plate to open to the left and right sides along the direction of the arc-shaped concave surface of the water tank cover, so as to extract the slider to realize demolding, which is suitable for manufacturing the water tank cover of the floor sweeping robot with an arc-shaped concave surface and a handle. Description of the Drawings
[0022] Figure 1 It is a three-dimensional schematic diagram of the clean water tank cover of an existing floor cleaning robot.
[0023] Figure 2 It is Figure 1 a top view schematic diagram of
[0024] Figure 3 It is Figure 2 a cross-sectional schematic diagram in the A-A direction in
[0025] Figure 4 a front view schematic diagram of a preferred embodiment of the present utility model.
[0026] Figure 5 It is Figure 4 a cross-sectional schematic diagram in the B-B direction in
[0027] Figure 6 It is Figure 4 a cross-sectional schematic diagram in the C-C direction in
[0028] Figure 7 It is Figure 4 a cross-sectional schematic diagram in the D-D direction in
[0029] Figure 8 It is Figure 4 a three-dimensional schematic diagram of
[0030] Figure 9 It is Figure 8 a schematic diagram after hiding the pull block.
[0031] Figure 10 It is Figure 8 an assembly and disassembly schematic diagram of
[0032] Wherein: 1. Clean water tank cover; 2. Handle; 3. Arc-shaped concave surface; 10. Upper die core; 11. Through groove; 12. Cross beam; 21. First flap body; 211. First locking bolt; 212. First avoidance groove; 22. Second flap body; 221. Second locking bolt; 222. Second avoidance groove; 23. Concave-convex matching structure; 30. Pull block; 31. Third locking bolt; 32. Third avoidance groove; 41. First connecting plate; 411. First rotating shaft; 412. Second rotating shaft; 42. Second connecting plate; 421. Third rotating shaft; 422. Fourth rotating shaft; 423. Milled plane; 51. Insert groove; 52. Insert; 521. Arc-shaped surface; 531. First guide rod; 532. Second guide rod; 533. Sleeve; 54. Guide groove. Specific embodiments
[0033] As Figures 4 to 10As shown in the figure, the mold structure for injection molding the water tank cover of the floor sweeping robot provided by the utility model includes: an upper mold core 10, a slider, and a pull block 30. Among them, a through groove 11 is opened in the middle of the upper mold core 10, which cooperates with the lower mold core (not shown in the figure) to form the lower bottom surface of the water tank cover 1. The through groove 11 penetrates the upper mold core 10 in the up and down direction. A cross beam 12 for forming the upper surface of the handle 2 on the water tank cover 1 is erected in the through groove 11. The two end parts of the cross beam 12 are vertically connected to the front side wall and the rear side wall of the through groove 11 respectively; the slider is movably arranged in the through groove 11 and is used for forming the arc-shaped concave surface 3 on the water tank cover 1 and the lower surface of the handle 2; the pull block 30 is arranged above the through groove 11 and can move up and down. The pull block 30 is connected to the slider through a connecting plate; the slider is a two-piece structure that can be opened and closed. The slider includes a first flap body 21 and a second flap body 22 symmetrically distributed on the left and right sides of the cross beam 12. The surfaces of the first flap body 21 and the second flap body 22 on the opposite sides are provided with matching concave-convex mating structures 23; the connecting plate extends vertically in the left and right directions. The connecting plate includes a first connecting plate 41 and a second connecting plate 42. The upper end of the first connecting plate 41 is rotatably connected to the pull block 30 through a first rotating shaft 411, and the lower end of the first connecting plate 41 is rotatably connected to the first flap body 21 through a second rotating shaft 412. The upper end of the second connecting plate 42 is rotatably connected to the pull block 30 through a third rotating shaft 421, and the lower end of the second connecting plate 42 is rotatably connected to the second flap body 22 through a fourth rotating shaft 422. The first rotating shaft 411, the second rotating shaft 412, the third rotating shaft 421, and the fourth rotating shaft 422 extend in a direction parallel to the cross beam 12.
[0034] The advantage of such a setting is that when the pull block moves upward, it can pull the first flap body and the second flap body to open to the left and right sides along the direction of the arc-shaped concave surface through the first connecting plate and the second connecting plate, so as to extract the slider to realize demolding, which is suitable for manufacturing Figures 1 to 3 the floor sweeping robot water tank cover with an arc-shaped concave surface and a handle as shown in the figure.
[0035] To ensure the synchronization when the first flap body 21 and the second flap body 22 open, in this embodiment, the first rotating shaft 411 and the third rotating shaft 421 are the same rotating shaft. This rotating shaft is detachably inserted into the pull block 30 in the left and right direction. Specifically, this rotating shaft penetrates the pull block 30 in the front and rear direction. A third locking bolt 31 for locking this rotating shaft is also connected to the pull block 30. When the third locking bolt 31 is tightened, the end of the third locking bolt 31 extends into the milling plane on the surface (outer circumferential surface) of this rotating shaft, so that the relative position between this rotating shaft and the pull block 30 is kept locked.
[0036] Further, the second rotating shaft 412 is inserted through the first flap body 21 in the front-rear direction, and a first locking bolt 211 for locking the second rotating shaft 412 is connected to the first flap body 21. When the first locking bolt 211 is tightened, its end extends into the milling plane on the surface (outer circumferential surface) of the second rotating shaft 412, so that the relative position of the second rotating shaft 412 and the first flap body 21 is locked; the fourth rotating shaft 422 is inserted through the second flap body 22 in the front-rear direction, and a second locking bolt 221 for locking the fourth rotating shaft 422 is connected to the second flap body 22. When the second locking bolt 221 is tightened, its end extends into the milling plane 423 on the surface (outer circumferential surface) of the fourth rotating shaft 422, so that the relative position of the fourth rotating shaft 422 and the second flap body 22 is locked.
[0037] To avoid interference, in this embodiment, a first avoidance groove 212 for avoiding the lower end of the first connecting plate 41 is provided on the first flap body 21, a second avoidance groove 222 for avoiding the lower end of the second connecting plate 42 is provided on the second flap body 22, and a third avoidance groove 32 for avoiding the upper end of the first connecting plate 41 and the upper end of the second connecting plate 42 is provided on the pull block 30. The first avoidance groove 212 and the second avoidance groove 222 extend in the left-right direction, and the third avoidance groove 32 penetrates the center of the upper and lower end faces of the pull block 30 and extends in the left-right direction.
[0038] To improve the smoothness when the first flap body 21 and the second flap body 22 open, in this embodiment, there are two first connecting plates 41 which are arranged at intervals in the front-rear direction, and there are two second connecting plates 42 which are arranged at intervals in the front-rear direction. The upper end of each first connecting plate 41 is rotationally attached to the upper end of a second connecting plate 42, and the upper end of each second connecting plate 42 is rotationally attached to the upper end of a first connecting plate 41.
[0039] To ensure that the first flap body 21 and the second flap body 22 open along a set track, the injection mold structure for the water tank cover of the floor sweeping robot further includes a guiding component for guiding the opening and closing directions of the first flap body 21 and the second flap body 22. The guiding component includes an insert groove 51 opened on the upper die core 10, an insert 52 arranged in the insert groove 51, and a guiding rod. The insert groove 51 is a flat-angle arc groove sunken at both ends. The insert groove 51 is opened on the front side wall and the rear side wall of the through groove 11 and penetrates the upper surface of the upper die core 10. The two end parts of the lower surface of the insert 52 are connected to the lowest points of the bottom wall of the insert groove 51. The middle part of the lower surface of the insert 52 arches upward to form an arc surface 521. An equal-width guiding groove 54 is formed between the arc surface 521 and the bottom wall of the insert groove 51. The end of the guiding rod is slidably inserted into the guiding groove 54. The guiding rod includes a first guiding rod 531 rotatably inserted through the first flap body 21 in the axial direction and a second guiding rod 532 rotatably inserted through the second flap body 22 in the axial direction.
[0040] To ensure that the first flap body 21 and the second flap body 22 run along a set trajectory and improve the smoothness, further, there are two first guide rods 531 which are arranged at intervals, and there are two second guide rods 532 which are arranged at intervals. A rotatable collar 533 is sleeved on the end of the guide rod, and the collar 533 is slidably embedded in the guide groove 54.
[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly. It is not intended to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims
1. A mold structure for injection molding of a water tank cover of a sweeping robot, comprising: An upper mold core, wherein a through groove is provided in the middle of the upper mold core for cooperating with the lower mold core to form the lower bottom surface of the clean water tank cover, a crossbeam is arranged in the through groove for forming the upper surface of the handle of the clean water tank cover, and two ends of the crossbeam are respectively vertically connected to the front side wall and the rear side wall of the through groove; A slider, the slider is movably disposed in the through groove, and the slider is used to form the arc-shaped inner concave surface on the clean water tank cover and the lower surface of the handle; A pulling block, which is movably disposed above the through slot and connected to the sliding block via a connecting plate; Features: The slider is a two-petal structure that can be opened and closed, and the slider includes a first petal body and a second petal body that are symmetrically distributed on the left and right sides of the beam; The connecting plate extends vertically in the left-right direction, and the connecting plate includes a first connecting plate and a second connecting plate. The upper end of the first connecting plate is rotatably connected to the pulling block through a first rotating shaft, and the lower end of the first connecting plate is rotatably connected to the first petal body through a second rotating shaft. The upper end of the second connecting plate is rotatably connected to the pulling block through a third rotating shaft, and the lower end of the second connecting plate is rotatably connected to the second petal body through a fourth rotating shaft. The first rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft extend in a direction parallel to the crossbeam.
2. The mold structure for injection molding of the water tank cover of the sweeping robot according to claim 1, characterized in that: The first rotating shaft and the third rotating shaft are the same rotating shaft, and the rotating shaft is detachably inserted into the pulling block along the left-right direction.
3. The mold structure for injection molding of the water tank cover of the sweeping robot according to claim 1, characterized in that: The first petal body is provided with a first avoidance groove for avoiding the lower end of the first connecting plate, and the second petal body is provided with a second avoidance groove for avoiding the lower end of the second connecting plate.
4. The mold structure for injection molding of the water tank cover of the sweeping robot according to claim 1, characterized in that: The pull block is provided with a third avoidance groove for avoiding the upper end of the first connecting plate and the upper end of the second connecting plate.
5. The mold structure for injection molding of the water tank cover of the sweeping robot according to claim 1, characterized in that: There are two first connecting plates which are spaced apart in the front-to-back direction, and there are two second connecting plates which are spaced apart in the front-to-back direction. The upper end of each of the first connecting plates is rotationally fitted with the upper end of one of the second connecting plates, and the upper end of each of the second connecting plates is rotationally fitted with the upper end of one of the first connecting plates.
6. The mold structure for injection molding of the water tank cover of the sweeping robot according to claim 1, characterized in that: The mold structure for injection molding of the water tank cover of the sweeping robot also includes a guide component for guiding the opening and closing directions of the first petal body and the second petal body, the guide component includes an insert groove opened on the upper mold core, an insert arranged in the insert groove, and a guide rod, the insert groove is a flat-angle arc groove with sunken ends, the insert groove is opened on the front side wall and / or the rear side wall of the through groove and passes through the upper surface of the upper mold core, the two ends of the lower surface of the insert are connected to the lowest point of the bottom wall of the insert groove, the middle part of the lower surface of the insert is arched upward to form an arc surface, and an equal-width guide groove is formed between the arc surface and the bottom wall of the insert groove, the end of the guide rod can be slidably inserted in the guide groove, and the guide rod includes a first guide rod axially rotatably penetrated on the first petal body and a second guide rod axially rotatably penetrated on the second petal body.
7. The mold structure for injection molding of the water tank cover of the sweeping robot according to claim 6, characterized in that: There are two first guide rods disposed at intervals, and there are two second guide rods disposed at intervals.
8. The mold structure for injection molding of the water tank cover of the sweeping robot according to claim 6, characterized in that: The end of the guide rod is sleeved with a rotatable collar, and the collar is slidably embedded in the guide groove.
9. The mold structure for injection molding of the water tank cover of the sweeping robot according to claim 1, characterized in that: The second rotating shaft is penetrated on the first petal body along the front-to-back direction, and the first petal body is connected with a first locking bolt for locking the second rotating shaft. When the first locking bolt is tightened, its end extends into the milling plane on the surface of the second rotating shaft, so that the relative position of the second rotating shaft and the first petal body remains locked; the fourth rotating shaft is penetrated on the second petal body along the front-to-back direction, and the second petal body is connected with a second locking bolt for locking the fourth rotating shaft. When the second locking bolt is tightened, its end extends into the milling plane on the surface of the fourth rotating shaft, so that the relative position of the fourth rotating shaft and the second petal body remains locked.
10. The mold structure for injection molding of the water tank cover of the sweeping robot according to claim 1, characterized in that: The first rotating shaft and the third rotating shaft are arranged on the pulling block along the front-to-back direction, and the pulling block is also connected with a third locking bolt for locking the first rotating shaft and the third rotating shaft. When the third locking bolt is tightened, its end extends into the milling plane on the surface of the first rotating shaft and the third rotating shaft, so that the relative positions of the first rotating shaft, the third rotating shaft and the pulling block remain locked.