Lead screw propelling mechanism of push plate type resistance furnace

Abstract

The utility model discloses a lead screw propelling mechanism of a push plate type resistance furnace. The lead screw propelling mechanism comprises a rack; the sliding assembly is arranged on the top surface of the rack; the pushing assembly is erected between the two opposite frame legs of the rack and used for pushing the pushing plate placed on the sliding assembly; and the driving assembly is connected with the pushing assembly so as to drive the pushing assembly. The scheme can run stably during working, the reliability is improved, the failure rate is reduced, and the equipment production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of resistance furnace, in particular to a lead screw propulsion mechanism of push plate type resistance furnace. BACKGROUND

[0002] The full-automatic push plate type resistance furnace is a furnace equipment widely used in electronic components, ceramics, metallurgical powder, chemical industry and other industries. Its characteristics are high furnace body temperature, long length and large pushing weight. The stability of the propulsion system directly affects the continuous operation ability of the equipment and the product process quality.

[0003] The propulsion mechanism of the existing push plate type resistance furnace usually adopts the scheme of trapezoidal lead screw + cast guide support. Its working principle is that the reduction motor drives the lead screw to rotate, which drives the push head to push the push plate carrying the product to move along the ceramic guide rail on the rack.

[0004] The propulsion mechanism of the existing push plate type resistance furnace will generate dust particles in the working process, and the push plate load is large. Long-time operation will cause the surface of the lead screw to wear out, and if it is not handled in time, the product will cause unstable pushing speed, affecting the product process cycle. Ultimately, the propulsion mechanism fails, and the equipment cannot operate normally. In addition, its process is complex, the stability is poor, and the failure rate is high. CONTENT OF THE INVENTION

[0005] Embodiments of the present application provide a lead screw propulsion mechanism of push plate type resistance furnace.

[0006] In order to achieve the above purpose, the embodiments of the present application provide a lead screw propulsion mechanism of push plate type resistance furnace, comprising:

[0007] a rack;

[0008] a sliding assembly arranged on the top surface of the rack;

[0009] a pushing assembly erected between two opposite legs of the rack, used for pushing the push plate placed on the sliding assembly;

[0010] a driving assembly connected with the pushing assembly to drive the pushing assembly.

[0011] In one of the embodiments, the sliding assembly comprises:

[0012] a table panel fixedly connected with the top surface of the rack;

[0013] a ceramic guide rail installed on the side of the table panel away from the rack.

[0014] In one of the embodiments, the pushing assembly comprises:

[0015] a lead screw;

[0016] a single nut sleeved on the lead screw and screwed with the lead screw.

[0017] nut seat, sleeved on the outside of the single nut and fixed with the single nut;

[0018] push head, mounted on the nut seat and extending out of the top surface of the frame, for pushing the push plate placed on the sliding assembly;

[0019] screw rod fixed bearing seat, fixed on one of the legs and connected to the first end of the screw rod;

[0020] screw rod supporting bearing seat, fixed on the other leg and connected to the second end of the screw rod.

[0021] In one embodiment, a dust cover is arranged between the screw rod fixed bearing seat and the single nut and between the screw rod supporting bearing seat and the single nut, and the dust cover is sleeved on the screw rod.

[0022] In one embodiment, the driving assembly comprises:

[0023] motor, mounted on the frame;

[0024] first sprocket, arranged at the shaft end of the screw rod;

[0025] second sprocket, arranged at the shaft end of the motor;

[0026] chain, sleeved on the first sprocket and the second sprocket.

[0027] In one embodiment, the auxiliary guiding assembly is further arranged, connected with the pushing assembly, for assisting the guiding of the pushing assembly.

[0028] In one embodiment, the auxiliary guiding assembly comprises:

[0029] connecting plate, connected with the pushing assembly;

[0030] a pair of linear guides, arranged at two ends of the connecting plate respectively;

[0031] a pair of sliders, connected with the linear guides respectively;

[0032] a pair of angle steels, connected with the sliders respectively and fixed on the frame.

[0033] In one embodiment, the limiting switch is further arranged, mounted on the table plate, for limiting the position of the pushing assembly.

[0034] Compared with the prior art, the application has the following beneficial effects:

[0035] The screw rod pushing mechanism of the push plate type resistance furnace provided by the application can run stably during work, the reliability is improved, the failure rate is reduced, and the production efficiency of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiment or prior art description. Obviously, the drawings in the following description only constitute some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0037] Figure 1 Structure diagram of the screw advancing mechanism of the push plate type resistance furnace in the embodiment of the present application;

[0038] Figure 2 Structure diagram of the screw advancing mechanism of the push plate type resistance furnace in the embodiment of the present application; DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0041] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0043] Reference Figure 1 , Figure 2The embodiment of the application provides a screw pushing mechanism of a push plate type resistance furnace, which comprises the following components:

[0044] A rack 1;

[0045] A sliding assembly arranged on the top surface of the rack 1;

[0046] A pushing assembly arranged between two opposite legs of the rack 1 and used for pushing a push plate 2 arranged on the sliding assembly;

[0047] A driving assembly connected with the pushing assembly and used for driving the pushing assembly.

[0048] Specifically, the rack 1 is used for supporting the whole screw pushing mechanism and is a mounting base of other components. The rack 1 can be welded by using a section steel to ensure the overall rigidity.

[0049] The sliding assembly is arranged on the top of the rack 1 and is used for bearing and guiding the movement of the push plate 2.

[0050] The pushing assembly is arranged between the two legs of the rack 1 and is responsible for pushing the push plate 2 to move along the sliding assembly.

[0051] The driving assembly is used for realizing the reciprocating movement of the push plate 2 on the sliding assembly.

[0052] The screw pushing mechanism of the push plate type resistance furnace provided by the embodiment can stably push materials for a long time through cooperation of the sliding assembly, the pushing assembly and the driving assembly.

[0053] In one embodiment, the sliding assembly comprises:

[0054] A table plate 3 fixedly connected with the top surface of the rack 1;

[0055] A porcelain guide rail 4 arranged on the side of the table plate 3 away from the rack 1.

[0056] Specifically, the table plate 3 can be welded on the top surface of the rack 1 and serves as a mounting base of the porcelain guide rail 4. A heat-resistant steel plate can be used to prevent high-temperature deformation. Exemplarily, the porcelain guide rail 4 is made of 310S stainless steel.

[0057] The porcelain guide rail 4 can be fixed on the table plate 3 through screws and provides a low-friction and high-temperature-resistant sliding surface. The material of the porcelain guide rail 4 can be alumina ceramic, and the surface is polished to ensure smooth sliding of the push plate 2.

[0058] In one embodiment, the pushing assembly comprises:

[0059] A screw 5;

[0060] A single nut sleeved on the screw 5 and screwed with the screw 5;

[0061] Nut seat 6, sleeved on the outside of the single nut, fixed with the single nut;

[0062] Push head 7, installed on the nut seat 6, and extending out of the top surface of the rack 1, used to push the push plate 2 placed on the sliding assembly;

[0063] Lead screw fixed bearing seat 8, fixed on one of the legs of the rack 1, and connected to the first end of the lead screw 5;

[0064] Lead screw support bearing seat 9, fixed on the other leg of the rack 1, and connected to the second end of the lead screw 5.

[0065] Specifically, the lead screw 5 can be a ball screw 5 made of heat-resistant alloy steel. It is used to convert the rotary motion of the drive assembly into the linear motion of the push head 7.

[0066] The single nut is sleeved on the lead screw 5 and cooperates with the lead screw 5 to transmit the axial thrust of the lead screw 5 to the nut seat 6. The nut seat 6 is fixed with the single nut by screws to prevent the single nut from rotating, used to connect the push head 7 and transmit the thrust to the push plate 2. The push head 7 is installed on the nut seat 6 by screws, the front end is in contact with the push plate 2, and the push plate 2 is pushed to move along the ceramic guide rail 4. The lead screw fixed bearing seat 8 and the lead screw support bearing seat 9 are fixed on the two legs of the rack 1 respectively, connected by screws, used to support the two ends of the lead screw 5 and limit the radial runout.

[0067] In one embodiment, a dust cover 21 is provided between the lead screw fixed bearing seat 8 and the single nut, and between the lead screw support bearing seat 9 and the single nut, and the dust cover 21 is sleeved on the lead screw 5.

[0068] Specifically, the dust cover 21 is used for dust prevention of the lead screw. Exemplarily, when the dust cover 21 is installed, the two ends can be clamped on the lead screw fixed bearing seat 8 and the lead screw support bearing seat 9 by using a throat clamp, and the middle part is clamped on the single nut.

[0069] In one embodiment, the drive assembly comprises:

[0070] Motor 10, erected on the rack 1;

[0071] First sprocket 11, provided at the shaft end of the lead screw 5;

[0072] Second sprocket 12, provided at the shaft end of the motor 10;

[0073] Chain 13, sleeved on the first sprocket 11 and the second sprocket 12.

[0074] Specifically, the motor 10 can adopt a variable frequency motor 10, which can be installed on the mounting plate 20 erected on the two legs of the rack 1. The motor 10 is used to provide power to control the reciprocating movement of the push head 7. The chain 13 adopts a high-temperature-resistant stainless steel roller chain, and the chain 13 cooperates with the first sprocket 11 and the second sprocket 12 to transmit the torque of the motor 10 to the lead screw 5.

[0075] In one embodiment, the lead screw propulsion mechanism of the push plate type resistance furnace further comprises an auxiliary guide assembly connected with the pushing assembly for assisting the pushing assembly in guiding. The motion stability of the pushing assembly can be provided to prevent the lead screw 5 from deforming due to lateral force.

[0076] In one embodiment, the auxiliary guide assembly comprises:

[0077] A connecting plate 14 connected with the pushing assembly;

[0078] A pair of linear guides 15 arranged at both ends of the connecting plate 14 respectively;

[0079] A pair of sliding blocks 16 connected with the linear guides 15 respectively;

[0080] A pair of angle steels 17 connected with the sliding blocks 16 respectively and fixed on the rack 1.

[0081] Specifically, the sliding block 16 is fixed on the rack 1 through the angle steel 17, and the sliding block 16 and the angle steel 17 can be connected through the adjusting screw 19. The linear guide 15 is connected with the nut seat 6 through the connecting plate 14, and the linear guide 15 slides relative to the sliding block 16. The linear guide 15 and the angle steel 17 have a 4mm adjustment gap, and the horizontal adjustment is performed using the adjusting screw 19.

[0082] In one embodiment, the lead screw propulsion mechanism of the push plate type resistance furnace further comprises a limit switch 18 installed on the table plate 3 for limiting the position of the pushing assembly.

[0083] Specifically, the limit switch 18 is arranged at both ends of the table plate 3 for detecting the end point and the starting point of the stroke of the push head 7 to trigger the motor 10 to reverse or stop.

[0084] The working principle of the lead screw propulsion mechanism of the push plate type resistance furnace provided by the embodiments of the present application is as follows:

[0085] When the push head 7 needs to be propelled, an electric signal is transmitted to the motor 10, the motor 10 is reversed and the force is transmitted from the second sprocket 12 at the shaft end of the motor 10 to the first sprocket 11 at the input end of the lead screw 5 through the chain 13 transmission. The push head 7 cooperates with the nut seat 6 to move horizontally on the lead screw 5, and after the push plate 2 is pushed to the end point and touches the limit switch 18, an electric signal is transmitted to the motor 10, the motor 10 is reversed and the push head 7 is retracted to the starting position to touch the limit switch 18 to stop.

[0086] The production test is carried out by using the design idea of the application, and finally in the actual use process of the user, compared with the previous mechanical device, the structure is simple, the action is reliable, the running is stable, and the expected effect is achieved.

[0087] The lead screw advancing mechanism of the push plate type resistance furnace is applied to a full-automatic push plate type resistance furnace, and in the use process of the user, the mechanism runs in a good state and obtains consistent praise from the user.

[0088] The lead screw advancing mechanism of the push plate type resistance furnace provided by the application can run stably when working, the reliability is improved, the failure rate is reduced, and the equipment production efficiency is improved.

[0089] The above is only a specific embodiment of the application, but the protection scope of the application is not limited thereto, any change or replacement within the technical scope disclosed by the application should be covered in the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. A screw propulsion mechanism of a pusher plate resistance furnace, characterized by, The utility model relates to a kind of pusher, including: Rack (1); Sliding assembly, the top surface of the rack (1) is provided; Pushing assembly, it is erected between the two opposite legs of the rack (1), for pushing the push plate (2) placed on the sliding assembly; Driving assembly, connect with the pushing assembly, to drive the pushing assembly.

2. The screw propulsion mechanism of a pusher plate resistance furnace according to claim 1, wherein The sliding assembly includes: Table panel (3), with the top surface of the rack (1) is fixedly connected; Porcelain guide rail (4), installation is away from the one side of the table panel (3) from the rack (1).

3. The screw propulsion mechanism of a pusher plate resistance furnace according to claim 1, wherein The pushing assembly includes: Lead screw (5); Single nut, sleeve is set on the lead screw (5), and with the lead screw (5) screw connection; Nut seat (6), sleeve is connected on the outside of the single nut, with the single nut fixedly connected; Push head (7), installation is on the nut seat (6), and protrudes the top surface of the rack (1), for pushing the push plate (2) placed on the sliding assembly; Lead screw fixed bearing seat (8), fixed in one of the legs, and connect the first end of the lead screw (5); Lead screw support bearing seat (9), fixed in another leg, and connect the second end of the lead screw (5).

4. The screw propulsion mechanism of a pusher plate resistance furnace according to claim 3, wherein The lead screw fixed bearing seat (8) and the single nut between and the lead screw support bearing seat (9) and the single nut between are provided with dust cover (21), the dust cover (21) sleeve is set the lead screw (5).

5. The screw propulsion mechanism of the pusher plate resistance furnace according to claim 3, wherein The driving assembly includes: Motor (10), it is erected on the rack (1); First sprocket (11), it is provided in the shaft end of the lead screw (5); Second sprocket (12), it is provided in the shaft end of the motor (10); Chain (13), sleeve is connected the first sprocket (11) and the second sprocket (12).

6. The screw propulsion mechanism of a pusher plate resistance furnace according to claim 1, wherein It further includes auxiliary guide assembly, connect with the pushing assembly, for auxiliary pushing assembly guide.

7. The screw propulsion mechanism of a pusher plate resistance furnace according to claim 6, wherein The auxiliary guide assembly includes: Connecting plate (14), connect with the pushing assembly; A pair of linear guide rails (15) are respectively arranged in both ends of the connecting plate (14); A pair of sliders (16) are respectively connected with the linear guide rail (15); A pair of angle steels (17) are respectively connected with the slider (16), and fixed on the rack (1).

8. The screw propulsion mechanism of the pusher plate resistance furnace according to claim 2, wherein It further includes limit switch (18), installation is on the table panel (3), for limiting the position of the pushing assembly.

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