An oven control panel swing structure capable of automatically adjusting gear clearance

Abstract

The present invention discloses a swing structure of an oven control panel capable of automatically adjusting gear clearance, which relates to the field of adjusting gear clearance. It includes a control panel provided with an opening, a touch screen installation box, a special-shaped gear piece fixedly opposite to the touch screen installation box and driving the touch screen installation box to swing, a bidirectional motor fixed on the control panel, a driving gear in transmission connection with the bidirectional motor and meshing with the special-shaped gear piece, and a tension spring; a rotation axis is provided on the touch screen installation box, and the touch screen installation box swings at the opening of the control panel around the rotation axis; an arc-shaped tooth portion centered on the rotation axis is provided on the special-shaped gear piece; one end of the tension spring is fixed to the special-shaped gear piece, and the other end of the tension spring is fixed to the touch screen installation box, so that the arc-shaped tooth portion on the special-shaped gear piece is always in close meshing with the driving gear. The present invention solves the technical problem that it is difficult to accurately fix the gear transmission structure on the sheet metal structure in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of adjusting gear clearances, and particularly to a swinging structure of an oven control panel capable of automatically adjusting gear clearances. Background Art

[0002] Since the gear structure has relatively strict requirements for installation accuracy, but in the sheet metal process, the tolerance range of sheet metal parts is relatively large, and the thermal deformation amount generated by the welding process between sheet metal parts is uncontrollable. Therefore, after the sheet metal parts are formed, there are certain errors in the positions of the parts and components on the sheet metal parts. At this time, it is difficult to accurately fix the gear transmission structure on the sheet metal structure. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and provide a swinging structure of an oven control panel capable of automatically adjusting gear clearances, which solves the technical problem that it is difficult to accurately fix the gear transmission structure on the sheet metal structure in the prior art.

[0004] To achieve the above purpose, the present invention provides a swinging structure of an oven control panel capable of automatically adjusting gear clearances, including a control panel provided with an opening, a touch screen mounting box, a special-shaped gear piece relatively fixed to the touch screen mounting box and driving the touch screen mounting box to swing, a two-way motor relatively fixed on the control panel, a driving gear drivingly connected to the two-way motor and meshing with the special-shaped gear piece, and a tension spring; a rotation axis is provided on the touch screen mounting box, and the touch screen mounting box swings at the opening of the control panel around the rotation axis; an arc-shaped tooth portion centered on the rotation axis is provided on the special-shaped gear piece, and the center of the circle corresponding to the arc-shaped tooth portion is coaxially arranged with the rotation axis, and its concentricity tolerance is between 0 and 0.5 mm; one end of the tension spring is relatively fixed to the special-shaped gear piece, and the other end of the tension spring is relatively fixed to the touch screen mounting box, so that the arc-shaped tooth portion on the special-shaped gear piece is always in close meshing with the driving gear.

[0005] In the above technical solution, it further includes a first sensor provided on the control panel for detecting whether the rotation of the touch screen mounting box is in place.

[0006] In the above technical solution, the first sensor is a microswitch, and the special-shaped gear piece detects whether the touch screen mounting box swings out in place by touching the microswitch.

[0007] In the above technical solution, it further includes a second sensor provided on the control panel for detecting whether the touch screen mounting box returns to the correct position.

[0008] In the above technical solution, the second sensor is a microswitch, and the special-shaped gear piece detects whether the touch screen mounting box returns to the correct position by touching the microswitch.

[0009] In the above technical solution, a first positioning post and a second positioning post are provided on the touch screen mounting box, a first through hole and a second through hole are provided on the special-shaped gear piece, the first positioning post passes through the first through hole, and the second positioning post passes through the second through hole.

[0010] In the above technical solution, a mounting portion is provided on the special-shaped gear piece, a screw hole is provided on the mounting portion, and a threaded hole adapted to the screw hole is provided on the second positioning post.

[0011] In the above technical solution, one end of the tension spring is fixed on the special-shaped gear piece, and the other end is fixed on the second positioning post.

[0012] In the above technical solution, it further includes a motor fixing bracket fixed on the control panel, and the bidirectional motor is fixed on the motor fixing bracket.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] When using the swing structure of the present technical solution, after the bidirectional motor is powered on, the bidirectional motor will drive the driving gear to work, thereby driving the special-shaped gear piece to perform transmission work, so that the touch screen mounting box swings out smoothly; when the bidirectional motor is powered on and reverses, the bidirectional motor will drive the driving gear to rotate in the reverse direction, thereby driving the special-shaped gear piece to perform reverse transmission work, so that the touch screen mounting box swings back to the original position smoothly. Among them, one end of the tension spring is relatively fixed to the special-shaped gear piece, and the other end of the tension spring is relatively fixed to the touch screen mounting box, so that the arc-shaped tooth portion on the special-shaped gear piece is always in close meshing with the driving gear. This technical solution can overcome the structural error of the sheet metal parts, use the tension spring to always mesh the two gears with each other, and solve the problem that it is extremely difficult to accurately fix the gear transmission structure on the sheet metal structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Figure 1 It is a schematic structural diagram of a swing structure of an oven control panel capable of automatically adjusting the gear clearance provided by the present invention;

[0016] Figure 2 It is an exploded schematic diagram of a swing structure of an oven control panel capable of automatically adjusting the gear clearance provided by the present invention;

[0017] Figure 3It is a right perspective view of a swing structure of an oven control panel capable of automatically adjusting gear clearance provided by the present invention;

[0018] Figure 4 It is a schematic structural diagram of the assembly relationship between a touch screen mounting box and a special-shaped gear piece provided by the present invention. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] As Figures 1-4 As shown, this embodiment provides a swing structure of an oven control panel capable of automatically adjusting gear clearance, which includes a control panel 1 provided with an opening 11, a touch screen mounting box 2, a special-shaped gear piece 3, a bidirectional motor 5, a driving gear 6, and a tension spring 7.

[0021] Specifically, the bidirectional motor 5 is relatively fixed on the control panel 1 and controls the rotation of the driving gear 6. The driving gear 6 meshes with the special-shaped gear piece 3 and drives the special-shaped gear piece 3 to rotate. A rotation axis 21 is provided on the touch screen mounting box 2, and an arc-shaped tooth portion 31 centered on the rotation axis 21 is provided on the special-shaped gear piece 3. Among them, the center of the arc-shaped tooth portion 31 corresponds to the rotation axis 21 and is coaxially arranged, and its concentricity tolerance is between 0 and 0.5 mm. The special-shaped gear piece 3 is relatively fixed to the touch screen mounting box 2 and drives the touch screen mounting box 2 to swing around the rotation axis 21 at the opening 11 of the control panel 1. One end of the tension spring 7 is relatively fixed to the special-shaped gear piece 3, and the other end of the tension spring 7 is relatively fixed to the touch screen mounting box 2, so that the arc-shaped tooth portion 31 on the special-shaped gear piece 3 is always in close mesh with the driving gear 6.

[0022] Specifically, after the bidirectional motor 5 is powered on, the driving gear 6 thereon will drive the special-shaped gear piece 3 to perform a transmission operation, so that the touch screen mounting box 2 swings out smoothly; when the bidirectional motor 5 is powered on again and the motor reverses, the driving gear 6 thereon will drive the special-shaped gear piece 3 to perform a reverse transmission operation, so that the touch screen mounting box 2 swings back to its original position. One end of the tension spring 7 is relatively fixed to the special-shaped gear piece 3, and the other end of the tension spring 7 is relatively fixed to the touch screen mounting box 2. In this way, under the action of the tension of the tension spring 7, the arc-shaped tooth portion 31 on the special-shaped gear piece 3 is always in close mesh with the driving gear 6. This technical solution can overcome the structural error of the sheet metal parts, use the tension spring 7 to always mesh the two gears with each other, and solve the problem that it is extremely difficult to accurately fix the gear transmission structure on the sheet metal structure.

[0023] For more details, please refer to Figures 2-3 In this embodiment, it further includes a first sensor 8 disposed on the control panel 1 for detecting whether the rotation of the touch screen mounting box 2 is in place. The first sensor 8 in this embodiment is preferably a microswitch. This embodiment also includes a second sensor 9 disposed on the control panel 1 for detecting whether the touch screen mounting box 2 returns to the correct position. The second sensor 9 is a microswitch. Specifically, when the touch screen mounting box 2 is in place after being swung out, the touch screen mounting box 2 will directly or indirectly touch the first sensor 8, and the system will feed back a signal to the bidirectional motor 5. The bidirectional motor 5 will stop working, so that the driving gear 6 and the special-shaped gear piece 3 will stop working, and the touch screen mounting box 2 will stop swinging; when the touch screen mounting box 2 returns to the correct position, the touch screen mounting box 2 will directly or indirectly touch the second sensor 9, and the system will feed back a signal to the bidirectional motor 5. The bidirectional motor 5 will stop working. At this time, the touch screen mounting box 2 will stop rotating, so that the driving gear 6 and the special-shaped gear piece 3 will stop working, and the touch screen mounting box 2 will stop swinging. The microswitch can not only detect whether the touch screen mounting box 2 is in place after being swung out or returned to the correct position, but also be used to control the operation of the bidirectional motor 5.

[0024] Specifically, further, please refer to Figure 2 and Figure 4 In this embodiment, a first positioning post 22 and a second positioning post 23 are provided on the touch screen mounting box 2, and a first through hole 32 and a second through hole 33 are provided on the special-shaped gear piece 3. Among them, the special-shaped gear piece 3 is fixed on the touch screen mounting box 2 by passing the first positioning post 22 through the first through hole 32 and the second positioning post 23 through the second through hole 33. At this time, as long as the driving gear 6 drives the special-shaped gear piece 3 to make a transmission movement, the special-shaped gear piece 3 can drive the touch screen mounting box 2 to make a swinging movement. Preferably, an installation portion 34 is provided on the special-shaped gear piece 3 of this embodiment, a screw hole 341 is provided on the installation portion 34, and a threaded hole 231 adapted to the screw hole 341 is provided on the second positioning post 23. When the second positioning post 23 is sleeved on the second through hole 33, the screw passes through the screw hole 341 on the installation portion 34 and is screwed into the threaded hole 231 on the second positioning post 23, so that the special-shaped gear piece 3 will not be separated from the touch screen mounting box 2, making the fixation of the special-shaped gear piece 3 and the touch screen mounting box 2 more stable.

[0025] Please refer to Figures 3-4 In this embodiment, one end of the tension spring 7 is fixed on the special-shaped gear piece 3, and the other end of the tension spring 7 is preferably fixed on the second positioning post 23. Specifically, the horizontal position of the installation portion 34 is higher than that of the second positioning post 23, and the special-shaped gear piece 3 will be tightly attached to the driving gear 6 under the pulling force of the tension spring 7.

[0026] Even further, please refer toFigures 2-3 , this embodiment further includes a motor fixing bracket 4 fixed on the control panel 1, and both the bidirectional motor 5 and the driving gear 6 are arranged on the motor fixing bracket 4. Specifically, setting the motor fixing bracket 4 can facilitate the installation of the bidirectional motor 5 and the driving gear 6, and it is more convenient to mesh the arc-shaped tooth part 31 of the special-shaped gear piece 3 with the gear on the driving gear 6. In addition, both the first sensor 8 and the second sensor 9 can be arranged on the motor fixing bracket 4. The first sensor 8 can sense the position when the special-shaped gear piece 3 swings out, so as to determine whether the touch screen installation box 2 swings out in place; the second sensor 9 can sense the position when the special-shaped gear piece 3 returns to the correct position, so as to determine whether the touch screen installation box 2 returns to the correct position. More specifically, both the first sensor 8 and the second sensor 9 are microswitches. When the touch screen installation box 2 swings out in place, the end of the special-shaped gear piece 3 will touch the microswitch, and the system will send a feedback signal to the bidirectional motor 5, and the bidirectional motor 5 will stop working, so that the driving gear 6 and the special-shaped gear piece 3 will stop working, and the touch screen installation box 2 will stop swinging; when the touch screen installation box 2 returns to the correct position, the root of the special-shaped gear piece 3 will touch the microswitch, and the system will send a feedback signal to the bidirectional motor 5, and the bidirectional motor 5 will stop working. At this time, the touch screen installation box 2 will stop rotating, so that the driving gear 6 and the special-shaped gear piece 3 will stop working, and the touch screen installation box 2 will stop swinging. In order for the special-shaped gear piece 3 to touch the microswitches at two positions, the special-shaped gear piece 3 is made into a special-shaped shape. Therefore, setting the motor fixing bracket 4 greatly facilitates the installation of each component.

[0027] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. An oven control panel swing structure capable of automatically adjusting gear clearance, characterized in that, it includes a control panel (1) provided with an opening (11), a touch screen mounting box (2), a special-shaped gear piece (3) fixedly opposite to the touch screen mounting box (2) and driving the touch screen mounting box (2) to swing, a bidirectional motor (5) fixedly mounted on the control panel (1), a driving gear (6) in transmission connection with the bidirectional motor (5) and meshing with the special-shaped gear piece (3), and a tension spring (7); A rotation axis (21) is provided on the touch screen mounting box (2), and the touch screen mounting box (2) swings around the rotation axis (21) at the opening (11) of the control panel (1). An arc-shaped tooth portion (31) is provided on the special-shaped gear piece (3), and the center of the circle corresponding to the arc-shaped tooth portion (31) is coaxial with the rotation axis (21), and its concentricity tolerance is between 0 and 0.5 mm. One end of the tension spring (7) is fixedly opposite to the special-shaped gear piece (3), and the other end of the tension spring (7) is fixedly opposite to the touch screen mounting box (2), so that the arc-shaped tooth portion (31) on the special-shaped gear piece (3) is always in close mesh with the driving gear (6). A first positioning post (22) and a second positioning post (23) are provided on the touch screen mounting box (2), a first through hole (32) and a second through hole (33) are provided on the special-shaped gear piece (3), the first through hole (32) is sleeved on the first positioning post (22), and the second through hole (33) is sleeved on the second positioning post (23). One end of the tension spring (7) is fixed on the special-shaped gear piece (3), and the other end thereof is fixed on the second positioning post (23). An installation portion (34) is provided on the special-shaped gear piece (3), a screw hole (341) is provided on the installation portion (34), and a threaded hole (231) adapted to the screw hole (341) is provided on the second positioning post (23).

2. An oven control panel swing structure capable of automatically adjusting gear clearance according to claim 1, characterized in that, it further includes a first sensor (8) provided on the control panel (1) for detecting whether the touch screen mounting box (2) is in place when it swings out.

3. An oven control panel swing structure capable of automatically adjusting gear clearance according to claim 2, characterized in that, the first sensor (8) is a microswitch, and the special-shaped gear piece (3) detects whether the touch screen mounting box (2) is in place when it swings out by touching the microswitch.

4. An oven control panel swing structure capable of automatically adjusting gear clearance according to claim 1, characterized in that, it further includes a second sensor (9) provided on the control panel (1) for detecting whether the touch screen mounting box (2) is in place when it returns to the original position.

5. An oven control panel swing structure capable of automatically adjusting gear clearance according to claim 4, characterized in that, the second sensor (9) is a microswitch, and the special-shaped gear piece (3) detects whether the touch screen mounting box (2) is in place when it returns to the original position by touching the microswitch.

6. A swinging structure of an oven control panel capable of automatically adjusting gear clearance according to claim 1, characterized in that, a tension spring fixing part (35) is arranged on the special-shaped gear piece (3).

7. A swinging structure of an oven control panel capable of automatically adjusting gear clearance according to claim 1, characterized in that, it further includes a motor fixing bracket (4) fixed on the control panel (1), and the bidirectional motor (5) is fixed on the motor fixing bracket (4).

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