Furnace drive mechanism

Abstract

The present invention discloses a furnace driving mechanism, which includes a connecting arm, a guiding member and a driving assembly; wherein, one end of the connecting arm is used to connect the furnace body, the other end of the connecting arm is slidably connected in the guiding member, and the other end of the connecting arm is used to make a linear reciprocating movement along a first path relative to the guiding member; the middle part of the connecting arm is rotatably connected to the driving assembly, and the driving assembly is used to drive the connecting arm to make a linear reciprocating movement along a second path; the axial direction of the first rotation axis around which the connecting arm rotates relative to the driving assembly, the first path and the second path are perpendicular to each other in pairs. The furnace driving mechanism disclosed by the present invention can solve the technical problem that the movement of the current furnace equipment is limited by the traditional driving mechanism, the movement mode is single and a large stroke cannot be provided, resulting in inconvenience in taking and placing related devices in the furnace.

Description

Technical Field

[0001] The invention belongs to the technical field of boiler equipment, and in particular relates to a furnace driving mechanism. Background Art

[0002] The furnace is a three-dimensional space for fuel combustion, which can provide a closed high-temperature environment. It is widely used in medical equipment and other related fields. For example, in the dental industry, it can be used for porcelain baking, glazing, sintering crystallization and other related operations of dentures.

[0003] In actual applications, the furnace equipment usually needs to be moved to a preset position during the non-working phase to facilitate the workers to take and place the denture workpieces and other related devices in the furnace. However, the movement of the current furnace equipment is limited by the traditional drive mechanism, which has a single movement method and cannot provide a large stroke. Therefore, it is difficult to meet the demand for moving the furnace equipment to the preset position, which makes it inconvenient for the workers to take and place the related devices and has low work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a furnace driving mechanism, aiming to solve the technical problem that the movement of current furnace equipment is limited by traditional driving mechanisms, the movement method is single and cannot provide a large stroke, thus causing inconvenience in taking and placing related devices in the furnace.

[0005] In order to achieve the purpose, the technical solution adopted by the present invention is as follows:

[0006] A furnace driving mechanism, comprising a connecting arm, a guide member and a driving assembly; wherein:

[0007] One end of the connecting arm is used to connect to the furnace body, and the other end of the connecting arm is slidably connected to the guide member, and the other end of the connecting arm is used to make a linear reciprocating movement relative to the guide member along the first path; the middle part of the connecting arm is rotatably connected to the driving assembly, and the driving assembly is used to drive the connecting arm to make a linear reciprocating movement along the second path;

[0008] The first rotation axis axis of the connecting arm relative to the driving assembly, the first path, and the second path are perpendicular to each other.

[0009] Further, the guide member comprises a first limit block and a second limit block which are spaced apart; the first limit block has a first plane, the second limit block has a second plane, and the first plane is opposite to the second plane;

[0010] The other end of the connecting arm is used to slide along the first path on the first plane and / or the second plane.

[0011] Furthermore, a roller is provided at the other end of the connecting arm, and the roller is used to roll along the first path on the first plane and / or the second plane.

[0012] Furthermore, the first plane and the second plane are parallel to each other, and a straight-line distance between the first plane and the second plane is greater than a diameter of the roller.

[0013] Further, the second path is arranged in a vertical direction, and the first plane is located above the second plane; when the driving assembly drives the connecting arm to move downward along the second path, the bottom of the furnace body is used to abut against the furnace platform;

[0014] When the bottom of the furnace body abuts against the furnace platform, the other end of the connecting arm abuts against the second plane.

[0015] Further, the connecting arm comprises a first arm body and a second arm body, the first arm body and the second arm body are perpendicular to each other, one end of the first arm body is connected to one end of the second arm body, the other end of the first arm body is used to connect to the furnace body, the other end of the second arm body is used to slide along the first path on the first plane and / or the second plane, and the first arm body is rotatably connected to the driving assembly around the first rotation axis;

[0016] When the bottom of the furnace body abuts against the furnace platform, the second arm body is in a horizontal state, and the other end of the second arm body abuts against the second plane.

[0017] Further, the driving assembly includes a driving device and a sliding block, the driving device is connected to the sliding block, the driving device is used to drive the sliding block to move back and forth along the second path, and the first arm is rotatably connected to the sliding block around the first rotation axis;

[0018] The sliding block has a horizontal limit portion; when the driving device drives the sliding block to move downward along the second path, the horizontal limit portion is used to abut against the second arm body when the second arm body is in a horizontal state, so as to keep the second arm body in a horizontal state.

[0019] Furthermore, the furnace driving mechanism further comprises a clamping adapter, and the clamping adapter is used to connect the furnace body;

[0020] The clamping adapter comprises a first clamping arm and a second clamping arm which are arranged at an interval, the other end of the first arm body is inserted between the first clamping arm and the second clamping arm, and the first clamping arm and the second clamping arm are used to shrink toward each other and clamp the other end of the first arm body.

[0021] Further, when the other end of the first arm body abuts against the first clamp arm, a first preset gap is provided between the other end of the first arm body and the first clamp arm.

[0022] Further, when the other end of the first arm body abuts against the second clamping arm, a second preset gap is provided between the other end of the first arm body and the second clamping arm.

[0023] Further, the furnace driving mechanism further comprises at least one limit switch, and the limit switch is electrically connected to the driving assembly;

[0024] The limit switch is used to output a closing signal to the driving component when it contacts the connecting arm, and the driving component is used to stop driving the connecting arm to move when it receives the closing signal.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The furnace driving mechanism proposed in the present invention is based on the principle of lever, so that the connecting arm is rotatably connected to the driving component, one end of the connecting arm is connected to the furnace body, and the other end of the connecting arm is slidably connected to the guide member, so that in the process of the driving component driving the connecting arm to move, the furnace body can move linearly with the connecting arm and flip with the rotation of the connecting arm, so that the furnace body can realize a compound movement of angular flipping simultaneously in the process of lifting and translation, so that the furnace body can obtain a longer moving stroke and a larger flipping angle without increasing the size of structural parts and lengthening the stroke of guide parts, thereby increasing the range of motion of the furnace body, so that it is more convenient to move the furnace body to a preset position for the work group to carry out the pick-up and placement operations of related devices such as denture workpieces; and since the furnace body can obtain a longer moving distance without spending more time, the problem of damaging the insulation effect in the furnace due to increased moving distance and too long moving time is avoided; in addition, compared with the traditional method of direct driving by a motor, the force effect of the driving component in the furnace driving mechanism of the present invention is better, thereby extending the service life of the furnace equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of a furnace driving mechanism in a closed state according to an embodiment of the present invention;

[0029] Figure 2 It is a structural schematic diagram of a furnace driving mechanism in an open state according to an embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the three-dimensional structure of a furnace driving mechanism according to an embodiment of the present invention;

[0031] Figure 4 The figure is a schematic diagram of the exploded structure of a furnace driving mechanism according to an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] Label name Label name 1 Connecting arm 21 The first limit block 2 Guide 22 The second limit block 3 Drive components 31 Drive device 4 First rotation axis 32 Slide Block 5 Scroll Wheel 61 First clamp arm 6 Clamping adapter 62 Second clamp arm 7 Limit switches 63 Second inclined portion 8 Furnace body 111 First inclined portion 9 Stove 221 Second plane 11 First arm 321 Horizontal limiter 12 The second arm

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Reference Figures 1 to 4 An embodiment of the present invention provides a furnace driving mechanism, which includes a connecting arm 1, a guide member 2 and a driving assembly 3; wherein:

[0037] One end of the connecting arm 1 is used to connect to the furnace body 8, and the other end of the connecting arm 1 is slidably connected to the guide member 2, and the other end of the connecting arm 1 is used to make a linear reciprocating movement relative to the guide member 2 along the first path; the middle part of the connecting arm 1 is rotatably connected to the driving component 3, and the driving component 3 is used to drive the connecting arm 1 to make a linear reciprocating movement along the second path;

[0038] The axial direction of the first rotating shaft 4 of the connecting arm 1 rotating relative to the driving assembly 3 , the first path, and the second path are perpendicular to each other.

[0039] After disassembling and studying the current furnace equipment, it was found that the movement of the furnace equipment currently used for denture porcelain, glazing, sintering and crystallization and other related operations on the market generally adopts the method of motor-driven hinge mechanism for flipping or motor-driven slider for vertical lifting. The movement form is single, the moving stroke is short and the flip angle is small, it is difficult to move the furnace to the preset ideal position, which is not convenient for the staff to take and place the denture workpieces and other devices in the furnace. According to the traditional design method of the furnace drive mechanism, if the movement range of the furnace needs to be increased, the size of the relevant structural parts needs to be increased and the stroke of the guide parts needs to be lengthened, which will greatly increase the overall weight of the furnace equipment, resulting in an increase in material costs and is not conducive to the lightweight development of the furnace equipment; on the other hand, the increase in the size of the relevant structural parts and the lengthening of the guide parts will greatly increase the time to drive the furnace to move, and too long a moving time will destroy the insulation effect in the furnace.

[0040] Based on the above problems and findings, this embodiment provides a furnace driving mechanism that combines linear motion with flipping motion. Specifically, the furnace body 8 in this embodiment can be a porcelain furnace, crystallization furnace, etc. used in the field of medical devices, for example, it can be used in the dental industry to perform porcelain baking, glazing, sintering and crystallization operations on dentures.

[0041] Illustrated, the furnace body 8 can be fixed to one end of the connecting arm 1 by means of threaded connection, pin connection, clamping, etc. The specific shape and direction of the connecting arm 1 can be set according to actual conditions and are not limited here. The middle part of the connecting arm 1 can be any position on the connecting arm 1 between the connecting parts at both ends, not specifically referring to the center of the connecting arm 1. The driving assembly 3 can include any device that can perform linear driving, such as a cylinder or a linear motor, and a linear driving mechanism composed of a rotating motor, a ball screw and a guide rail slider assembly. The middle part of the connecting arm 1 can be rotatably connected to the movable part of the driving assembly 3 by means of a rotating shaft part and directly or indirectly (through an adapter).

[0042] The guide member 2 may include devices such as slide grooves and guide rails with a linear guiding function. The other end of the connecting arm 1 can be directly slidably fitted in the guide member 2, or can be matched with the guide member 2 with the help of devices such as rollers 5 and sliders.

[0043] When the connecting arm 1 rotates relative to the driving assembly 3 about the first rotating shaft 4 axial direction (i.e., the axial direction of the rotating shaft), the first path, and the second path are perpendicular to each other, taking the first path as the horizontal left-right direction and the second path as the vertical direction as an example, when the driving assembly 3 drives the connecting arm 1 to rise, the furnace body 8 at one end of the connecting arm 1 will move upward with the connecting arm 1; at the same time, due to the limiting effect of the guide member 2 on the other end of the connecting arm 1, the other end of the connecting arm 1 can only move linearly to the left in the guide member 2 as the connecting arm 1 rises, which will drive the connecting arm 1 to rotate relative to the driving assembly 3 in the clockwise direction shown in the figure, so that the furnace body 8 at one end of the connecting arm 1 will flip upward with the rotation of the connecting arm 1. Based on the above operation, the furnace body 8 can be driven to flip upward while moving linearly upward.

[0044] Similarly, when the driving assembly 3 drives the connecting arm 1 to descend, the furnace body 8 at one end of the connecting arm 1 will move downward with the connecting arm 1; at the same time, due to the limiting effect of the guide member 2 on the other end of the connecting arm 1, the other end of the connecting arm 1 can only move linearly to the right in the guide member 2 as the connecting arm 1 descends, which will drive the connecting arm 1 to rotate relative to the driving assembly 3 in the counterclockwise direction shown in the figure, so that the furnace body 8 at one end of the connecting arm 1 will turn downward with the rotation of the connecting arm 1. Based on the above operation, the furnace body 8 can be driven to turn downward while moving linearly downward.

[0045] Through the above arrangement, the furnace body 8 can realize the compound movement of angle flipping during the lifting and translation process, thereby increasing the moving stroke of the furnace body 8 without increasing the size of the structural parts and lengthening the travel of the guide parts, and increasing the range of motion of the furnace body 8, so that it is more convenient to move the furnace body 8 to the preset position for the workers to take and place the denture workpiece and other related devices. In addition, since the linear lifting and flipping movement of the furnace body 8 is carried out simultaneously, the furnace body 8 can obtain a longer moving distance without spending more time, thereby avoiding the problem of damaging the insulation effect in the furnace due to the increase in moving distance and too long moving time.

[0046] It can be seen that the furnace driving mechanism provided in this embodiment, based on the lever principle, can enable the furnace body 8 to move a longer distance in a shorter time and obtain a larger flipping angle when the structural parts are small in size and the guide parts have a shorter stroke. Compared with the traditional method of direct drive by a motor, the force effect of the driving components in the furnace driving mechanism of this embodiment is better, thereby extending the service life of the furnace equipment.

[0047] Optionally, refer to Figures 1 to 4The guide member 2 includes a first limit block 21 and a second limit block 22 which are spaced apart from each other; the first limit block 21 has a first plane (not shown in the figure), and the second limit block 22 has a second plane 221, and the first plane is opposite to the second plane 221;

[0048] The other end of the connecting arm 1 is used to slide along the first path on the first plane and / or the second plane 221 .

[0049] This embodiment provides a specific structural form of the guide member 2. A guide channel is formed between the first plane and the second plane 221, and the other end of the connecting arm 1 can move linearly in the guide channel. In addition, based on the split design of the first limit block 21 and the second limit block 22, the first limit block 21 and / or the second limit block 22 can be set to be detachable or movable, so that the relative distance and relative angle between the first limit block 21 and the second limit block 22 are easier to adjust according to the actual driving situation, which can better meet the driving requirements such as the furnace movement route.

[0050] Optionally, refer to Figures 1 to 4 A roller 5 is disposed at the other end of the connecting arm 1 , and the roller 5 is used to roll along the first path on the first plane and / or the second plane 221 .

[0051] By setting the roller 5, the sliding fit of the other end of the connecting arm 1 relative to the guide member 2 is converted into a rolling fit, which helps to reduce the friction force when the other end of the connecting arm 1 moves linearly on the first plane / second plane 221, thereby making the movement of the connecting arm 1 smoother and improving the stability of the driving process.

[0052] Further, refer to Figures 1 to 4 In an exemplary embodiment, the second path is arranged in the vertical direction, and the first plane is located above the second plane 221; when the driving assembly 3 drives the connecting arm 1 to move downward along the second path, the bottom of the furnace body 8 is used to abut against the furnace table 9;

[0053] When the bottom of the furnace body 8 abuts against the furnace platform 9 , the other end of the connecting arm 1 abuts against the second plane 221 .

[0054] Before heating the internal device to be processed through the furnace body 8, it is usually necessary to evacuate the interior of the furnace body 8. Taking the furnace equipment used for denture porcelain, glazing, sintering and crystallization in the dental industry as an example, the evacuation operation can prevent the denture from oxidizing with oxygen during the sintering and porcelain baking process. During the evacuation process, the stability of the furnace body 8 needs to be maintained to ensure smooth evacuation.

[0055] The movement of furnace equipment currently on the market for denture porcelain baking, glazing, sintering crystallization and other related operations generally adopts the method of motor-driven hinge mechanism for flipping or motor-driven slider for vertical lifting. The force application points of these two driving mechanisms that can only provide a single motion are located on the side wall of the furnace body 8. When the furnace body 8 stops moving, it can only rely on the self-locking force of the motor itself or the torque continuously provided by the motor to provide the pre-tightening force of the furnace body 8. It is difficult to generate a large locking force on the furnace body 8 so that the furnace body 8 can smoothly complete the vacuum operation, and the continuous torque provided by the motor will reduce the service life of the motor.

[0056] Based on the above problems, this embodiment sets a furnace table 9. When the staff has finished placing the device to be processed in the furnace body 8, the furnace body 8 moves downward under the drive of the connecting arm 1. The furnace table 9 is used to support the furnace body 8 that has descended to the preset vacuum position. When the furnace body 8 is stably abutted against the furnace table 9, the vacuum operation can be performed. Figure 1 As shown, at this time, the furnace table 9 will generate an upward force F1 on the bottom of the furnace body 8, and the second plane 221 also generates an upward force F2 on the other end of the connecting arm 1 abutting against it. According to the lever principle, with the first rotating shaft 4 as the fulcrum, the connecting arm 1 forms a long-arm lever at this time. The force arm of the force F1 is the distance L1 from the action point of F1 to the first rotating shaft 4, and the force arm of the force F2 is the distance L2 from the action point of F2 to the first rotating shaft 4. The total relative force F1+G (G is the self-weight of the furnace body 8) of the furnace table 9 on the furnace body 8 is the locking force when the furnace body 8 is vacuumed. According to the bending moment calculation formula F1*LI=F2*L2, it can be known that F1=(F2*L2) / LI, that is, at this time, the locking force of the furnace body 8 is provided by the pressure of the long-arm lever, which can increase the locking force of the furnace body 8 during the vacuum operation, improve the stability of the vacuum operation and extend the service life of the drive component 3.

[0057] Optionally, refer to Figures 1 to 4 The connecting arm 1 comprises a first arm body 11 and a second arm body 12, the first arm body 11 and the second arm body 12 are perpendicular to each other, one end of the first arm body 11 is connected to one end of the second arm body 12, the other end of the first arm body 11 is used to connect to the furnace body 8, the other end of the second arm body 12 is used to slide along the first path on the first plane and / or the second plane 221, and the first arm body 11 is rotatably connected to the driving assembly 3 around the first rotating axis 4;

[0058] When the bottom of the furnace body 8 abuts against the furnace platform 9 , the second arm body 12 is in a horizontal state, and the other end of the second arm body 12 abuts against the second plane 221 .

[0059] As shown in the figure, the connecting arm 1 may be L-shaped, and the first arm 11 extends along the height direction of the furnace body 8, so that a larger contact area with the side wall of the furnace body 8 can be obtained, making the connection between the furnace body 8 and the connecting arm 1 more reliable. When the second arm 12 is in a horizontal state when the bottom of the furnace body 8 abuts against the furnace platform 9, it is easier to determine the contact between the furnace body 8 and the furnace platform 9.

[0060] Optionally, refer to Figures 1 to 4 The first plane and the second plane 221 are parallel to each other, and a straight-line distance between the first plane and the second plane 221 is greater than a diameter of the roller 5 .

[0061] Optionally, refer to Figures 1 to 4 The driving assembly 3 includes a driving device 31 and a sliding block 32. The driving device 31 is connected to the sliding block 32. The driving device 31 is used to drive the sliding block 32 to move back and forth along the second path. The first arm 11 is rotatably connected to the sliding block 32 around the first rotating axis 4.

[0062] The sliding block 32 has a horizontal limit portion 321; when the driving device 31 drives the sliding block 32 to move downward along the second path, the horizontal limit portion 321 is used to abut against the second arm body 12 when the second arm body 12 is in a horizontal state, so as to keep the second arm body 12 in a horizontal state.

[0063] by Figure 1 and Figure 2 Taking the shown orientation as an example, when the straight-line distance between the first plane and the second plane 221 is greater than the diameter of the roller 5, during the rising stage of the furnace body 8, the side of the heavier first arm body 11 connected to the furnace body 8 will, under the action of gravity, produce a tendency to drive the connecting arm 1 as a whole to rotate counterclockwise around the first rotation axis 4, and the horizontal limit portion 321 will block the rotation of the second arm body 12 through its limiting effect, so that the connecting arm 1 remains in a non-rotating state in the initial stage of the rise, and the furnace body 8 only makes a vertical rising movement without turning over. When the right end of the second arm body 12 rises to abut against the first plane, the right end of the second arm body 12 will move to the left on the first plane, and drive the connecting arm 1 as a whole to rotate clockwise around the first rotation axis 4. At this time, the first arm body 11 will drive the furnace body 8 to turn upward while rising vertically.

[0064] Similarly, during the descending stage of the furnace body 8, the side of the heavier first arm body 11 connected to the furnace body 8 will drive the connecting arm 1 to rotate counterclockwise around the first rotating axis 4 as a whole under the action of gravity, and the right end of the second arm body 12 will also move to the right on the first plane. At this time, the first arm body 11 will drive the furnace body 8 to flip downward while descending vertically; when the second arm body 12 rotates counterclockwise to a horizontal state, the horizontal limit portion 321 will prevent the second arm body 12 from continuing to rotate through its limiting effect, thereby keeping the connecting arm 1 in a non-rotating state in the final stage of descent. At this time, the furnace body 8 only makes a vertical descending movement without a flipping movement, until the bottom of the furnace body 8 and the furnace table 9, and the right end of the second arm body 12 and the second plane 221 are simultaneously in contact and generate a locking force for the vacuum operation.

[0065] The matching position of the horizontal limit portion 321 and the second arm body 12 is not limited here, and it is only necessary to ensure that the horizontal limit portion 321 plays a role in preventing the second arm body 12 from continuing to rotate.

[0066] Through the above-mentioned arrangement, the furnace body 8 can maintain a vertical lifting state without flipping in the initial stage of the ascending operation and the final stage of the descending operation, which is more conducive to ensuring the stability of the bottom of the furnace body 8 and the furnace table 9 when they are in contact and separated, and can also make the relative force applied by the furnace table 9 to the bottom of the furnace body 8 more accurately controllable.

[0067] Optionally, refer to Figures 1 to 4 The furnace driving mechanism further includes a clamping adapter 6, and the clamping adapter 6 is used to connect the furnace body 8;

[0068] The clamping adapter 6 has a first clamping arm 61 and a second clamping arm 62 which are spaced apart. The other end of the first arm body 11 is inserted between the first clamping arm 61 and the second clamping arm 62 . The first clamping arm 61 and the second clamping arm 62 are used to contract toward each other and clamp the other end of the first arm body 11 .

[0069] by Figure 4 As shown in the example, the first clamp arm 61 and the second clamp arm 62 can extend downward to form an opening for clamping at the lower part of the clamp adapter 6, so that the clamp adapter 6 connected to the furnace body 8 can be clamped from top to bottom to the upper end of the first arm body 11 during assembly, and the first clamp arm 61 and the second clamp arm 62 can be pulled toward each other by locking bolts and nuts, so that the first clamp arm 61 and the second clamp arm 62 are tightly attached to the upper end of the first arm body 11 to be clamped on the first arm body 11, thereby realizing the connection and fixation between the furnace body 8 and the connecting arm 1 through a quick, simple and adjustable assembly method.

[0070] The method of driving the first clamping arm 61 and the second clamping arm 62 to contract toward each other is not limited to the method of threaded fasteners cooperating, and can also be achieved by squeezing with a wedge-shaped structure, etc., which is not limited here.

[0071] Optionally, refer to Figures 1 to 4 When the other end of the first arm body 11 abuts against the first clamping arm 61 , a first preset gap (not shown in the figure) is provided between the other end of the first arm body 11 and the first clamping arm 61 .

[0072] Optionally, refer to Figures 1 to 4 When the other end of the first arm body 11 abuts against the second clamping arm 62 , a second preset gap (not shown in the figure) is provided between the other end of the first arm body 11 and the second clamping arm 62 .

[0073] In the descending stage of the furnace body 8, in order to ensure that the bottom of the furnace body 8 and the furnace platform 9, and the other end of the second arm body 12 and the second plane 221 are in contact at the same time, so as to ensure the accuracy of the locking force provided by the long arm lever to the furnace body 8, it is necessary to calibrate the dimensional accuracy and connection accuracy of each component in advance. In the case where the error is difficult to completely avoid, since the furnace body 8 and the first arm body 11 are connected by clamping, it is not a purely rigid connection and has a certain adjustable space. Therefore, by setting the first preset gap and the second preset gap, when there is a non-synchronous contact between the bottom of the furnace body 8 and the furnace platform 9, and the other end of the second arm body 12 and the second plane 221, the clamping adapter 6 can move slightly relative to the first arm body 11 under the action of force, thereby offsetting the error caused by the non-synchronous contact, ensuring that the bottom of the furnace body 8 and the furnace platform 9, and the other end of the second arm body 12 and the second plane 221 are in stable contact, thereby ensuring the accuracy of the locking force provided by the long arm lever to the furnace body 8.

[0074] like Figure 4 As shown, the first inclined portions 111 shown in the figure can be respectively set on both sides of the upper end of the first arm body 11, and the corresponding position on the clamping adapter 6 can be set with a matching second inclined portion 63, and the first preset gap and the second preset gap can be correspondingly set between the first inclined portion 111 and the second inclined portion 63.

[0075] Optionally, refer to Figures 1 to 4 , the furnace driving mechanism further includes at least one limit switch 7, and the limit switch 7 is electrically connected to the driving assembly 3;

[0076] The limit switch 7 is used to output a closing signal to the driving component 3 when it contacts the connecting arm 1, and the driving component 3 is used to stop driving the connecting arm 1 to move when receiving the closing signal.

[0077] The limit switch 7 can utilize the collision of mechanical moving parts to move its contacts to achieve the control purpose of connecting or disconnecting the control circuit. By setting the limit switch 7, it can be used to limit the movement stroke of the connecting arm 1, so that the furnace body 8 automatically stops when it rises or falls to a preset position, which can avoid damage to the device due to exceeding the preset movement range, and improve the accuracy of the automatic control of the furnace drive mechanism.

[0078] It should be noted that other contents of the furnace driving mechanism disclosed in the present invention can be found in the prior art and will not be described in detail here.

[0079] In addition, it should be noted that the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0080] The above are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A furnace driving mechanism, characterized in that, the furnace driving mechanism includes a connecting arm, a guiding member and a driving assembly; wherein: one end of the connecting arm is used to connect the furnace body, the other end of the connecting arm is slidably connected in the guiding member, and the other end of the connecting arm is used to make a linear reciprocating movement relative to the guiding member along a first path; the middle part of the connecting arm is rotatably connected to the driving assembly, and the driving assembly is used to drive the connecting arm to make a linear reciprocating movement along a second path; the axial direction of the first rotation axis around which the connecting arm rotates relative to the driving assembly, the first path, and the second path are perpendicular to each other in pairs.

2. The furnace driving mechanism according to claim 1, characterized in that, the guiding member includes a first limiting block and a second limiting block arranged at intervals; the first limiting block has a first plane, the second limiting block has a second plane, and the first plane is opposite to the second plane; the other end of the connecting arm is used to slide and cooperate on the first plane and / or the second plane along the first path.

3. The furnace driving mechanism according to claim 2, characterized in that, a roller is arranged at the other end of the connecting arm, and the roller is used to roll and cooperate on the first plane and / or the second plane along the first path.

4. The furnace driving mechanism according to claim 3, characterized in that, the first plane and the second plane are parallel to each other, and the linear distance between the first plane and the second plane is greater than the diameter of the roller.

5. The furnace driving mechanism according to claim 2, characterized in that, the second path is arranged in the vertical direction, and the first plane is above the second plane; when the driving assembly drives the connecting arm to move downward along the second path, the bottom of the furnace body is used to abut against the furnace platform; when the bottom of the furnace body abuts against the furnace platform, the other end of the connecting arm abuts against the second plane.

6. The furnace driving mechanism according to claim 5, characterized in that, the connecting arm has a first arm body and a second arm body, the first arm body and the second arm body are perpendicular to each other, one end of the first arm body is connected to one end of the second arm body, the other end of the first arm body is used to connect the furnace body, the other end of the second arm body is used to slide and cooperate on the first plane and / or the second plane along the first path, and the first arm body is rotatably connected to the driving assembly around the first rotation axis; when the bottom of the furnace body abuts against the furnace platform, the second arm body is in a horizontal state, and the other end of the second arm body abuts against the second plane.

7. The furnace driving mechanism according to claim 6, characterized in that, the driving assembly includes a driving device and a sliding block, the driving device is connected to the sliding block, the driving device is used to drive the sliding block to make a linear reciprocating movement along the second path, and the first arm body is rotatably connected to the sliding block around the first rotation axis; The sliding block has a horizontal limiting portion; during the process of the driving device driving the sliding block to move downward along the second path, the horizontal limiting portion is used to abut against the second arm body when the second arm body is in a horizontal state, so as to keep the second arm body in a horizontal state.

8. The furnace driving mechanism according to claim 6, wherein, the furnace driving mechanism further includes a clamping adapter, and the clamping adapter is used to connect the furnace body; the clamping adapter has a first clamping arm and a second clamping arm which are arranged at intervals, the other end of the first arm body is inserted between the first clamping arm and the second clamping arm, and the first clamping arm and the second clamping arm are used to contract towards each other and clamp the other end of the first arm body.

9. The furnace driving mechanism according to claim 8, wherein, when the other end of the first arm body abuts against the first clamping arm, there is a first preset gap between the other end of the first arm body and the first clamping arm; and / or, when the other end of the first arm body abuts against the second clamping arm, there is a second preset gap between the other end of the first arm body and the second clamping arm.

10. The furnace driving mechanism according to any one of claims 1 to 9, wherein, the furnace driving mechanism further includes at least one limit switch, and the limit switch is electrically connected to the driving component; the limit switch is used to output a closing signal to the driving component when contacting the connecting arm, and the driving component is used to stop driving the connecting arm to move when receiving the closing signal.

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