Automatic box door lifting device

Abstract

The application discloses a kind of box door automatic lifting device, comprising: column, symmetrically fixed on the base body to be installed;Lifting piece is respectively slidably arranged on column;Vertical guide slot is movably arranged on the both sides of column by guide rail;Box door is movably connected on column by lifting piece and located between vertical guide slot;Transmission guide arm is respectively arranged on the both sides of box door, and upper end is hinged on box door, and lower end is connected with the rotating member that can slide up and down in vertical guide slot;Front and rear telescopic mechanism is symmetrically fixed on the both sides of column for controlling vertical guide slot to slide forward and backward;Lifting mechanism is fixed on column for controlling lifting piece to slide up and down.The application has relatively simple structure, can realize the automatic lifting of box door, and can automatically retract lower end after rising to avoid lubricating oil from falling on maintenance personnel, solve the technical problems that existing box door structure is complex, inconvenient to open, long opening time and lubricating oil is easy to fall on maintenance personnel after opening box door, cause pollution.

Description

Technical Field

[0001] This invention relates to the field of cabinet door control technology, specifically to an automatic lifting device for cabinet doors, which is particularly suitable for the automatic lifting of the lubricating oil tank door in a wire drawing machine. Background Technology

[0002] Wire drawing machines, also known as wire drawing machines or wire pulling machines, are widely used mechanical equipment in industrial applications, including machinery manufacturing, hardware processing, petrochemicals, plastics, bamboo and wood products, and wire and cable industries.

[0003] Metal wire drawing machines are pre-processing equipment for the production of standard parts and other metal products. Their purpose is to draw metal rods through the wire drawing machine so that the diameter, roundness, internal metallographic structure, surface finish and straightness of the rods meet the raw material processing requirements for the production of standard parts and other metal products.

[0004] The working principle of a metal wire drawing machine is mainly to use a wire drawing drum to draw rods into wires of the required specifications. The wire drawing drum is usually immersed in a wire drawing box containing lubricating oil, which lubricates and cools the drum. To facilitate equipment installation and maintenance and prevent external debris from entering the wire drawing box, an openable and closable door is usually provided. For example, patent document CN103521536A discloses a single-drive aluminum alloy wire drawing system with a two-layer structure: an inner layer with two doors and an outer layer with a roller shutter door. While this type of door structure facilitates equipment installation and maintenance and prevents external debris from entering, the complex and bulky structure of the box presents several technical problems in practical applications. First, it makes opening the door inconvenient and time-consuming. Second, the lubricating oil adhering to the door causes it to drip directly onto maintenance personnel when the door is opened for maintenance, such as by opening the roller shutter door, causing contamination and posing a significant hazard. However, avoiding the contamination of the work area with lubricating oil would hinder maintenance personnel and reduce maintenance efficiency.

[0005] Therefore, it is necessary to provide a new door control technology to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to overcome the above-mentioned technical problems existing in the prior art and to provide an automatic lifting device for a cabinet door. The invention has a relatively simple structure, can realize the automatic lifting of the cabinet door, and can automatically retract the lower end after rising to prevent lubricating oil from dripping onto maintenance personnel. It solves the technical problems of existing cabinet doors having complex structures, inconvenient opening, long opening time, and lubricating oil easily dripping onto maintenance personnel after opening the cabinet door, causing pollution.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0008] An automatic lifting device for a cabinet door, characterized in that it comprises:

[0009] The columns are symmetrically fixed to the base to be installed.

[0010] The lifting components are slidably mounted on the columns;

[0011] Vertical guide grooves are movably mounted on both sides of the column via guide rails;

[0012] The box door is movably connected to the uprights via a lifting mechanism and is located between the vertical guide slots;

[0013] The transmission guide arms are respectively set on both sides of the box door, with their upper ends hinged to the box door and their lower ends connected to a rotating part that can slide up and down in the vertical guide groove;

[0014] The front and rear telescopic mechanisms are symmetrically fixed on both sides of the column to control the front and rear sliding of the vertical guide groove;

[0015] The lifting mechanism, fixed to the column, is used to control the up and down sliding of the lifting components;

[0016] When the front and rear telescopic mechanism controls the vertical guide groove to slide backward, the lower part of the box door retracts backward;

[0017] When the front and rear telescopic mechanism controls the vertical guide groove to slide forward until the transmission guide arm is vertically downward, the lifting mechanism can control the box door to move up and down through the lifting component.

[0018] The lifting component includes a slanted arm, one end of which is slidably mounted on a column and connected to the lifting mechanism. The other end of the slanted arm is fixed with symmetrical bearings via a connecting shaft, and a fixing block for connecting to the box door is fixed on the bearing.

[0019] The upper part of the box door is provided with an L-shaped step, and the box door is connected to the fixing block through the vertical surface of the L-shaped step.

[0020] The box door includes an outer door and an inner door fixed as one piece, and the upper end of the transmission guide arm is hinged to the upper part of the inner door.

[0021] The rotating component includes a deep groove ball bearing, a rotating shaft, a washer, and a locking nut. The deep groove ball bearing is slidably disposed in a vertical guide groove. The locking nut and the deep groove ball bearing are respectively fixed at both ends of the rotating shaft. The washer is movably sleeved on the rotating shaft. The transmission guide arm is movably sleeved between the locking nut and the washer via the rotating shaft.

[0022] The rotating component is a spherical or hemispherical structure, with one side movably connected to the transmission guide arm and the other side sliding in the vertical guide groove.

[0023] The lifting mechanism includes a lifting motor, a first gearbox, a drive shaft, a second gearbox, and a drive screw. The second gearbox is fixed to the lower part of the column, and the drive screw is vertically installed inside the column. The lower end of the drive screw is connected to the second gearbox, and the upper end is threaded to the lifting component. The lifting motor is fixed between the columns and is connected to the second gearbox through the first gearbox and the drive shaft. The lifting motor can drive the drive screw to rotate simultaneously through the first gearbox, the drive shaft, and the second gearbox.

[0024] The advantages of using this invention are:

[0025] 1. This invention comprises a column, a lifting component, a vertical guide groove, a transmission guide arm, a front and rear telescopic mechanism, and a lifting mechanism to form an automatic lifting device for a cabinet door. When the front and rear telescopic mechanism controls the vertical guide groove to slide forward until the transmission guide arm is vertically downward, the lifting mechanism, through the lifting component, controls the door's up and down movement. Furthermore, when the front and rear telescopic mechanism controls the vertical guide groove to slide backward, the lower part of the door retracts backward. Therefore, this invention not only achieves automatic lifting of the cabinet door but also automatically retracts the lower end after lifting to prevent lubricating oil from dripping onto maintenance personnel. This makes opening the cabinet door more convenient, shortens the opening time, and also has the advantage of a simple structure.

[0026] 2. The present invention uses a combination of a slanted arm, a connecting shaft, a bearing, and a fixing block to form a lifting block, which can not only stably fix a large box door on the column, but also does not affect the flexible retraction of the lower part of the box door when it moves backward.

[0027] 3. The L-shaped step of this invention helps to improve the stability of the connection between the door and the lifting component.

[0028] 4. The present invention uses an outer door and an inner door fixed as a whole as the box door, which is beneficial to improve the sealing effect after the box door is closed. The upper end of the transmission guide arm is hinged to the upper part of the inner door, which is beneficial to control the front and rear extension of the box door through the transmission guide arm.

[0029] 5. The present invention uses a deep groove ball bearing, a rotating shaft, a washer and a locking nut to form a rotating component, which is conducive to realizing flexible control of the door's up and down lifting and forward and backward extension. It also has the advantages of simple structure and simple operation.

[0030] 6. The present invention sets the rotating part as a spherical or hemispherical structure, which is not only conducive to the flexible control of the door’s up and down lifting and front and back extension, but also has the advantage of simple structure.

[0031] 7. The present invention uses a lifting motor, a first gearbox, a transmission shaft, a second gearbox, and a transmission screw as the lifting mechanism. It can use one set of motors to drive two transmission screws, which has the advantages of simplified structure, low cost, and consistent transmission. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 for Figure 1 Enlarged view of point I in the middle;

[0034] Figure 3 A schematic diagram of the planar structure of the lifting mechanism mounted on the column;

[0035] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure;

[0036] Figure 5 This is a three-dimensional structural diagram of the box door;

[0037] Figure 6 A schematic diagram of the structure of the vertical guide groove assembled on the front and rear telescopic mechanism;

[0038] Figure 7 This is a schematic diagram of the planar structure of the rotating component;

[0039] Figure 8 This is a three-dimensional structural diagram of the present invention when applied to a wire drawing machine.

[0040] The following components are labeled in the diagram: 1. Column, 2. Lifting component, 3. Vertical guide groove, 4. Guide rail, 5. Transmission guide arm, 6. Front and rear telescopic mechanism, 7. Lifting mechanism, 8. Inclined arm, 9. Fixed block, 10. L-shaped step, 11. Outer door, 12. Inner door, 13. Sealing gasket, 14. Deep groove ball bearing, 15. Rotating shaft, 16. Washer, 17. Locking nut, 18. Lifting motor, 19. First gearbox, 20. Transmission shaft, 21. Second gearbox, 22. Transmission screw, 23. Rotating component. Detailed Implementation

[0041] This invention provides an automatic lifting device for a lubricating oil tank door, suitable for the automatic lifting of the door in equipment such as wire drawing machines. Figure 1-7 As shown, the device includes:

[0042] The column 1 is preferably two, and is symmetrically fixed on the base to be installed.

[0043] The number of lifting components 2 is adapted to the number of columns 1, and they are slidably installed on the columns 1 respectively, that is, the lifting components 2 can slide on the columns 1.

[0044] There are two vertical guide grooves 3, which are movably set on both sides of the column 1 via guide rails 4, and their structure is similar to a concave shape.

[0045] The door is structurally compatible with the opening of the box to be sealed, and its upper part is movably connected to the column 1 via the lifting component 2 and located between the vertical guide grooves 3.

[0046] Two transmission guide arms 5 are respectively installed on both sides of the door. The transmission guide arm 5 is a strip-shaped structure, with its upper end hinged to the door and its lower end connected to a rotating component 23 that can slide up and down in the vertical guide groove 3. Since the rotating component 23 can slide in the vertical guide groove 3, and both ends of the transmission guide arm 5 are movably connected to the door and the rotating component 23 respectively, by moving the guide groove back and forth on the guide rail 4, the lower part of the door can be controlled to retract backward or extend forward through the rotating component 23 and the transmission guide arm 5.

[0047] The front and rear telescopic mechanism 6 is symmetrically fixed on both sides of the column 1 to control the vertical guide groove 3 to slide back and forth on the guide rail 4. Specifically, it can be a telescopic cylinder, mainly used to control the extension and retraction of the lower part of the box door.

[0048] The lifting mechanism 7 is fixed on the column 1 to control the lifting component 2 to slide up and down, thereby controlling the up and down movement of the box door to open and close the box door.

[0049] by Figure 1 , 2 Taking the direction shown as an example, when the front and rear telescopic mechanism 6 controls the vertical guide groove 3 to slide backward, the lower part of the door will retract backward. Specifically, since the upper part of the door is movably connected to the lifting component 2, when the front and rear telescopic mechanism 6 controls the vertical guide groove 3 to slide backward, the lower part of the door will rotate around the connection point between the door and the lifting component 2, thereby achieving the retraction of the lower part of the door backward. This allows the lower part of the opened door to be closer to the rear, thus preventing lubricating oil on the door from falling onto maintenance personnel.

[0050] When the forward and backward telescopic mechanism 6 controls the vertical guide groove 3 to slide forward until the transmission guide arm 5 is vertically downward, the lifting mechanism 7 can control the door to move up and down via the lifting component 2. Specifically, when the vertical guide groove 3 slides forward until the transmission guide arm 5 is vertically downward, the axis of the transmission guide arm 5 is exactly parallel to the axis of the vertical guide groove 3, and both axes are perpendicular to the horizontal plane. Since the rotating component 23 is slidably installed in the guide groove, the lifting mechanism 7 can control the door to move up and down at this time.

[0051] Preferably, the lifting component 2 includes a slanted arm 8, one end of which is slidably mounted on the column 1 and connected to the lifting mechanism 7, and the other end of the slanted arm 8 is fixed with a connecting shaft. Symmetrical bearings are fixed at both ends of the connecting shaft, and fixing blocks 9 for connecting with the box door are fixed on the bearings.

[0052] Furthermore, the upper part of the door is provided with an L-shaped step 10. The door is connected to the fixing block 9 through the vertical surface of the L-shaped step 10. The door and the fixing block 9 can be anchored with bolts. Under the action of symmetrical bearings, the door can be stably fixed to the lifting component 2 without affecting the rotation of the door.

[0053] Preferably, the door comprises an outer door 11 and an inner door 12 fixed together. The shape and length of the lower ends of both doors are adapted to the shape of the oil tank to be sealed. Through the cooperation of the outer door 11 and the inner door 12, the lubricating oil can be effectively sealed inside the cable box, thereby improving the lubrication of the cable. In addition, to improve the sealing effect of the door on the oil tank, the present invention also provides a sealing gasket 13 at the lower end of the inner door 12. The sealing gasket 13 can enhance the sealing performance between the door and the sealing point.

[0054] Furthermore, to ensure better balance when the door moves up and down, it is preferable to hinge the upper end of the transmission guide arm 5 to the upper part of the inner door 12.

[0055] To facilitate the vertical lifting of the door via the cooperation of the transmission guide arm 5 and the rotating component 23, the present invention can adopt the following two structures for the rotating component 23:

[0056] The first type: The rotating component 23 includes a deep groove ball bearing 14, a rotating shaft 15, a washer 16 and a locking nut 17. The deep groove ball bearing is slidably disposed in the vertical guide groove 3. The locking nut 17 and the deep groove ball bearing 14 are respectively fixed at both ends of the rotating shaft 15. The washer 16 is movably sleeved on the rotating shaft 15. The transmission guide arm 5 is movably sleeved between the locking nut 17 and the washer 16 through the rotating shaft 15.

[0057] The second type: The rotating component 23 is a spherical or hemispherical structure, with one side movably connected to the transmission guide arm 5 and the other side sliding in the vertical guide groove 3.

[0058] The present invention preferably adopts the rotating member 23 of the first structure described above, but the rotating member 23 of the second structure can also be adopted according to different needs. Both types of rotating members 23 can achieve smooth lifting and lowering of the box door.

[0059] Preferably, the lifting mechanism 7 includes a lifting motor 18, a first gearbox 19, a drive shaft 20, a second gearbox 21, and a drive screw 22. The number of lifting motors 18 can be one, the number of first gearboxes 19 can be one set, the number of drive shafts 20 can be two, the number of second gearboxes 21 can be two sets, and the number of drive screws 22 can be two. The second gearboxes 21 are fixed to the lower part of the columns 1, and the drive screws 22 are vertically arranged inside the columns 1. The lower end of the drive screw 22 is connected to the second gearbox 21, and the upper end is threadedly connected to the inclined arm 8 of the lifting component 2. The lifting motor 18 is fixed between the columns 1 and connected to the second gearbox 21 through the first gearbox 19 and the drive shaft 20. The lifting motor 18 can simultaneously drive the drive screws 22 to rotate through the first gearbox 19, the drive shaft 20, and the second gearbox 21. This lifting mechanism 7 of the present invention uses only one motor to achieve the driving control of two drive screws 22, and has the advantages of simple structure and easy control. Of course, the aforementioned structure is preferred. In practical applications, a structure that uses two sets of motors or two sets of cylinders to control the lifting and lowering of the box door is also an equivalent structure.

[0060] The automatic lifting device for the box door described in this invention can be applied to equipment that requires lubrication and cooling, such as wire drawing machines. The working principle of this invention will be explained below using its application in a wire drawing machine as an example.

[0061] like Figure 8 As shown, the wire drawing machine's wire drawing box is open at this time, and the lower part of the box door is retracted. First, the vertical guide groove 3 is controlled to slide forward by the front and rear telescopic mechanism 6. The vertical guide groove 3 drives the lower end of the transmission guide arm 5 to move forward through the rotating part 23. When the transmission guide arm 5 moves forward to vertically downward, the panel of the box door is also vertically downward. Then, the lifting motor 18, the first gearbox 19, the transmission shaft 20, the second gearbox 21, and the transmission screw 22 in the lifting mechanism 7 work together to control the lifting part 2 to move downward, which can drive the box door to move downward and seal the wire drawing box. After that, lubricating oil can be filled to completely immerse the wire drawing drum and the die base in the lubricating oil for wire drawing, and the drawing lubrication effect is better.

[0062] When maintenance is required, simply reverse the steps described above to open the cable box and retract the lower part of the door. As the lower part of the door retracts, the lubricating oil on the door will not fall onto the maintenance personnel, making maintenance easier and improving environmental friendliness.

[0063] In addition, the present invention is equivalent to using a screw structure to control the lifting and lowering of the box door, which has the advantages of simple structure and easy operation, as well as stable lifting and fast opening speed.

[0064] The above description is merely a specific embodiment of the present invention. Any feature disclosed in this specification may be replaced by other equivalent or similar features unless otherwise specified. All features or steps in the disclosed methods or processes may be combined in any way, except for mutually exclusive features and / or steps.

Claims

1. An automatic lifting device for a cabinet door, characterized in that... include: The columns (1) are symmetrically fixed on the base to be installed; The lifting components (2) are slidably mounted on the column (1); The vertical guide groove (3) is movably set on both sides of the column (1) via the guide rail (4); The box door is movably connected to the column (1) via the lifting component (2) and located between the vertical guide grooves (3); The transmission guide arm (5) is set on both sides of the box door. Its upper end is hinged to the box door, and its lower end is connected to a rotating part (23) that can slide up and down in the vertical guide groove (3). The front and rear telescopic mechanism (6) is symmetrically fixed on both sides of the column (1) to control the front and rear sliding of the vertical guide groove (3); The lifting mechanism (7) is fixed on the column (1) and is used to control the up and down sliding of the lifting component (2); When the front and rear telescopic mechanism (6) controls the vertical guide groove (3) to slide backward, the lower part of the box door retracts backward; When the forward and backward telescopic mechanism (6) controls the vertical guide groove (3) to slide forward until the transmission guide arm (5) is vertically downward, the lifting mechanism (7) can control the box door to move up and down through the lifting component (2).

2. The automatic lifting device for a cabinet door according to claim 1, characterized in that: The lifting component (2) includes a slanted arm (8), one end of which is slidably mounted on the column (1) and connected to the lifting mechanism (7). The other end of the slanted arm (8) is fixed with symmetrical bearings via a connecting shaft, and a fixing block (9) for connecting with the box door is fixed on the bearing.

3. The automatic lifting device for a cabinet door according to claim 2, characterized in that: The upper part of the box door is provided with an L-shaped step (10), and the box door is connected to the fixing block (9) through the vertical surface of the L-shaped step (10).

4. The automatic lifting device for a cabinet door according to claim 1, characterized in that: The box door includes an outer door (11) and an inner door (12) fixed together, and the upper end of the transmission guide arm (5) is hinged to the upper part of the inner door (12).

5. An automatic lifting device for a cabinet door according to any one of claims 1-4, characterized in that: The rotating component (23) includes a deep groove ball bearing (14), a rotating shaft (15), a washer (16), and a locking nut (17). The deep groove ball bearing is slidably disposed in the vertical guide groove (3). The locking nut (17) and the deep groove ball bearing (14) are respectively fixed at both ends of the rotating shaft (15). The washer (16) is movably sleeved on the rotating shaft (15). The transmission guide arm (5) is movably sleeved between the locking nut (17) and the washer (16) through the rotating shaft (15).

6. An automatic lifting device for a cabinet door according to any one of claims 1-4, characterized in that: The rotating component (23) is a spherical or hemispherical structure, with one side movably connected to the transmission guide arm (5) and the other side sliding in the vertical guide groove (3).

7. The automatic lifting device for a cabinet door according to claim 1, characterized in that: The lifting mechanism (7) includes a lifting motor (18), a first gearbox (19), a transmission shaft (20), a second gearbox (21), and a transmission screw (22). The second gearbox (21) is fixed at the lower part of the column (1), and the transmission screw (22) is vertically installed in the column (1). The lower end of the transmission screw (22) is connected to the second gearbox (21), and the upper end is threaded to the lifting component (2). The lifting motor (18) is fixed between the columns (1) and is connected to the second gearbox (21) through the first gearbox (19) and the transmission shaft (20). The lifting motor (18) can drive the transmission screw (22) to rotate simultaneously through the first gearbox (19), the transmission shaft (20), and the second gearbox (21).

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