Lifting type multi-layer tempering furnace for spring production

Abstract

The utility model belongs to the technical field of spring production, and particularly relates to a lifting type multi-layer tempering furnace for spring production, which comprises a base, a cross beam fixedly arranged on the upper end face of the base, a sealing heat supply cover fixedly arranged below the cross beam, a central fixing rod slidably arranged below the sealing heat supply cover, and a furnace frame rotatably arranged on the upper end face of the central fixing rod. The stove frame is composed of multiple layers of frame plates, fixing assemblies are arranged on the upper end face of each layer of frame plate in an array mode in the circumferential direction, a center fixing rod is fixedly arranged in the sealed heat supply cover, and a feeding assembly is fixedly arranged on the upper end face of the base and located on one side of the cross beam. Through the arrangement of the rotating frame, the fixing assembly and the like, the device can change the position and angle of each spring all the time in the heat treatment process, so that the springs are heated more uniformly; and by arranging the slidably arranged chassis, the sealed heat supply cover and the like, the heat treatment space in the device can be closed, and heat loss is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to spring production technical field especially relates to a spring production is with lift -type multilayer annealing furnace. BACKGROUND

[0002] Spring is often used as a shock absorbing and buffering part in existing industrial production and daily life, and is very common and widely used due to its economic adaptability, high efficiency and convenience. The production process of spring can mainly include the following steps: spring winding, heat treatment, spring grinding, etc. The heat treatment process in the production process plays an important role in the use effect and service life of the finished spring, and the fire furnace for spring production emerges as the times require.

[0003] For example, the spring annealing furnace disclosed in patent application No. CN202221916551.9 includes an annealing furnace body, an annealing cavity is formed in the annealing furnace body, a conveyor belt is arranged on the annealing furnace body, the conveyor belt passes through the annealing cavity, the conveyor belt includes a driving roller and a flexible belt wound on the driving roller, a sliding roller is arranged on the lower surface of the flexible belt, the sliding roller is located at the feeding end of the flexible belt, a driving member is arranged on the annealing furnace body to drive the sliding roller to reciprocate, and the reciprocating direction of the sliding roller and the conveying direction of the flexible belt form an angle. The present application has the following effects: the driving member can drive the sliding roller to reciprocate in a direction that forms an angle with the conveying direction of the flexible belt, so that the spring fed onto the flexible belt is subjected to vibration caused by the reciprocating movement of the flexible belt, thereby reducing the probability of the spring being stacked on the surface of the flexible belt and improving the annealing effect of the spring.

[0004] The prior art uses an annealing furnace and a conveyor belt to make the device can uniformly heat treat the spring material on the conveyor belt, but in actual use, there are still some deficiencies:

[0005] 1. The prior art uses a one-way moving conveyor belt to heat treat the spring during the conveying process, but it is worried that the spring and the spring may not be evenly heated during the movement, and the parts of the single spring may not be evenly heated, which may result in poor heat treatment effect of the final spring material. The prior art lacks a setting that can change the position and angle of the spring during the heat treatment process of the spring.

[0006] 2. The prior art selects a conveyor belt and a furnace for cooperation, but the sealing performance of this setting is not strong, which may cause low heat treatment efficiency of the device, thereby causing low energy utilization rate, waste of resources, low production economic benefit and other problems. INVENTION CONTENTS

[0007] The utility model discloses in order to overcome the insufficient of prior art, provide a spring production is with lifting type multilayer annealing furnace, the utility model discloses through the rotation frame and fixed assembly etc. Setting makes the device can change the position and angle of each spring in the heat treatment process, make it more evenly heated, through the bottom disc and the sealed heat supply cover etc. Setting makes the space of the device heat treatment can be closed, reduces the heat loss.

[0008] The utility model discloses in order to realize above-mentioned purpose, provide following technical scheme: a spring production is with lifting type multilayer annealing furnace, including base, the base upper end surface fixed setting has crossbeam, the crossbeam below fixed setting has sealed heat supply cover, the sealed heat supply cover below sliding setting has bottom disc, the bottom disc upper end surface rotation setting has fire stove frame, the fire stove frame is by multilayer shelf board composition, each layer the shelf board upper end surface all is provided with fixed component, the sealed heat supply cover in fixed setting has center fixed rod, the crossbeam one side is on the base upper end surface fixed setting and has feeding assembly.

[0009] Preferably, the fixed component includes a plurality of fixed wheels linearly arranged on the outer circumferential surface of the center fixed rod, a plurality of rotating wheels rotatably arranged on the corresponding shelf plate outside each fixed wheel, and a mounting hole for placing a spring is arranged on each rotating wheel.

[0010] Preferably, the feeding assembly includes a support frame fixedly arranged on the upper end surface of the base, a second electric push rod fixedly arranged on the support frame, a sliding plate connected to the output end of the second electric push rod, a plurality of feeding holes equidistantly arranged on the sliding plate, and a switch valve fixedly arranged in each feeding hole.

[0011] Preferably, a heat supply device is fixedly arranged on the crossbeam above the sealed heat supply cover, and a plurality of heating ring walls are arranged on the inner wall of the sealed heat supply cover.

[0012] Preferably, a plurality of fans are fixedly arranged on the upper end surface of the sealed heat supply cover, a plurality of openings are arranged on each shelf plate below the fans, and the overall end surface of the shelf plate is hollow.

[0013] Preferably, a driving motor is fixedly arranged on the lower end surface of the bottom disc, the output end of the driving motor is connected to the lower end surface of the fire stove frame through the upper end surface of the bottom disc, and an end surface bearing is further connected between the lower end surface of the fire stove frame and the upper end surface of the bottom disc.

[0014] Preferably, a first electric push rod is fixedly arranged on the upper end surface of the base below the sealed heat supply cover, and the output end of the first electric push rod is connected to the bottom disc.

[0015] (1) The utility model adopts the arrangement of the rotating frame and the fixed component, so that the spring material can be driven by the fixed component during the heat treatment process and can also rotate during the process of revolution in the sealed heating cover, so that all parts of the spring exterior can be effectively contacted, thereby making the spring material more evenly heated in the device and having a better heat treatment effect.

[0016] (2) The utility model is provided with a sliding chassis and a sealed heating cover, so that the space for heat treatment operation can be closed during the process of heat treatment of spring materials, thereby reducing heat loss. In combination with the setting of the fan, the heat circulation between the multiple layers of shelves in the sealed heating cover can be promoted, and the auxiliary device can perform heat treatment on the spring more uniformly, thereby effectively improving the overall heat treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle;

[0020] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0021] Figure 5 for Figure 2 A three-dimensional cross-sectional view at CC;

[0022] Figure 6 It is a front view of the utility model;

[0023] Figure 7 for Figure 6 Stereoscopic cross-sectional view at DD in the middle;

[0024] In the figure: base 10, crossbeam 11, heating device 12, sealed heating cover 13, fan 14, heating ring wall 15, stove frame 16, frame plate 17, opening 18, central fixing rod 19, fixed wheel 20, rotating wheel 21, placement hole 22, end bearing 23, chassis 24, drive motor 25, first electric push rod 26, sliding groove 27, support frame 28, sliding plate 29, loading hole 30, switch valve 31, second electric push rod 32. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] Embodiment one:

[0027] Referring to the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , and the accompanying drawings Figure 4 , a spring production lifting multilayer tempering furnace, comprising a base 10, the upper end surface of the base 10 is fixedly provided with a cross beam 11, the upper end surface of the cross beam 11 is fixedly provided with a heating device 12, the lower end surface of the cross beam 11 below the heating device 12 is fixedly provided with a sealed heating cover 13, and the inner wall of the sealed heating cover 13 is further fixedly provided with a plurality of heating ring walls 15. The sealed heating cover 13 forms a space for heat treatment of spring materials, and the plurality of heating ring walls 15 in the sealed heating cover 13 can work when the heating device 12 is started.

[0028] Further, referring to the accompanying drawings Figure 3 , the accompanying drawings Figure 4 , the accompanying drawings Figure 5 , and the accompanying drawings Figure 6 , the lower end surface of the sealed heating cover 13 is fixedly provided with a first electric push rod 26 on the upper end surface of the base 10, the output end of the first electric push rod 26 is connected with a bottom disc 24, the bottom of the bottom disc 24 is fixedly provided with a driving motor 25, the output end of the driving motor 25 is connected with a furnace frame 16 on the upper end surface of the bottom disc 24, and an end face bearing 23 is connected between the bottom disc 24 and the furnace frame 16. The first electric push rod 26 enables the bottom disc 24 and the parts thereon to slide up and down below the sealed heating cover 13, the output end of the first electric push rod 26 rises during heat treatment, the end surface of the bottom disc 24 is tightly attached to the lower end surface of the sealed heating cover 13, and the plurality of parts and materials thereon are sent into the sealed heating cover 13 for heat treatment; the driving motor 25 and the end face bearing 23 enable the furnace frame 16 to not only rise and fall with the bottom disc 24, but also rotate freely on the upper end surface of the bottom disc 24.

[0029] Further, referring to the accompanying drawings Figure 4 and the accompanying drawings Figure 5, the furnace frame 16 is composed of multiple layers of shelf plates 17, and a central fixed rod 19 is fixedly arranged at the center of the upper end surface of the sealed heating cover 13, and a fixed assembly is arranged on the outer side of the central fixed rod 19 on the multiple layers of shelf plates 17; the fixed assembly comprises multiple fixed wheels 20 arranged linearly on the outer circular surface of the central fixed rod 19, and multiple rotating wheels 21 arranged in the circumferential direction are further rotatably arranged on the outer side of the corresponding shelf plate 17 of each fixed wheel 20, and each rotating wheel 21 is provided with a placement hole 22 for placing a spring. In this scheme, the multiple fixed wheels 20 can be engaged with the multiple rotating wheels 21, and the multiple rotating wheels 21 can also be engaged with each other for transmission. During heat treatment, under the cooperation of the opening 18, the driving motor 25 below the bottom plate 24 can drive the furnace frame 16 to rotate with the parts and materials thereon, while the central fixed wheel 20 is fixed, and the multiple rotating wheels 21 on the outer periphery of the fixed wheel 20 not only revolve with the furnace frame 16 but also rotate under the cooperation of the fixed wheel 20, so that the springs in the placement holes 22 change position and angle continuously during heat treatment, so that each spring can be uniformly heat treated, and finally the overall yield and heat treatment effect are improved.

[0030] Further, with reference to the accompanying drawings Figure 1 , the accompanying drawings Figure 3 , the accompanying drawings Figure 6 , and the accompanying drawings Figure 7 , a feeding assembly is further arranged on one side of the cross beam 11 below the sealed heating cover 13, and the feeding assembly comprises a support frame 28 fixedly arranged on the upper end surface of the base 10, a second electric push rod 32 fixedly arranged on the support frame 28, a sliding plate 29 slidably connected to the output end of the second electric push rod 32, multiple feeding holes 30 equidistantly arranged on the sliding plate 29, and an on-off valve 31 fixedly arranged in each feeding hole 30. When feeding is needed, the production personnel can put the spring material to be processed into the multiple feeding holes 30, and the second electric push rod 32 can push the sliding plate 29 to slide and feed, and after the sliding plate 29 is in place, the on-off valve 31 in each feeding hole 30 can be opened to release the spring material to be processed into the placement hole 22. If the degree of automation needs to be improved, the production enterprise can also choose to connect the feeding hole 30 with a hose and a vibrating disc, so that the spring to be processed can enter the multiple feeding holes 30 according to the specified position. The specific vibrating disc and hose are prior art, and this scheme and the accompanying drawings are not shown.

[0031] Specifically, initially, the output end of the first electric push rod 26 is not pushed out, and the plurality of parts on the output end of the first electric push rod 26 are located on the upper end face of the base 10; then, the output end of the first electric push rod 26 is gradually pushed out to drive the chassis 24 and the plurality of parts thereon to rise, until the position of the uppermost shelf plate 17 is raised to below the sliding plate 29, then the second electric push rod 32 pushes out the sliding plate 29 to slide and feed, so that the plurality of feeding holes 30 on the sliding plate 29 are just located above the plurality of mounting holes 22 of the uppermost shelf plate 17, the sliding plate 29 is in place, and the switch valves 31 in the plurality of feeding holes 30 are all opened to release the spring materials in the feeding holes 30 into the corresponding mounting holes 22, and the release of the spring materials at one time can complete the feeding of one group of radial mounting holes 22 on each shelf plate 17;

[0032] Then, the driving motor 25 can drive the fire grate frame 16 on the chassis 24 to rotate to feed the next group of mounting holes 22. Considering that the support plates between the plurality of shelf plates 17 of the fire grate frame 16 will interfere with the extended sliding plate 29, therefore, when the fire grate frame 16 rotates, the second electric push rod 32 needs to retract the output end to drive the sliding plate 29 to exit the fire grate frame 16; in this way, reciprocatingly, after completing the feeding of one layer of shelf plate 17, the second electric push rod 32 drives the sliding plate 29 to retract, and the first electric push rod 26 can continue to feed to raise the next layer of shelf plate 17 and feed the next layer of shelf plate 17, until the feeding of each layer of shelf plate 17 on the fire grate frame 16 is completed.

[0033] After the feeding is completed, the first electric push rod 26 drives the chassis 24 and the parts and spring materials thereon to continue to rise, until the upper end face of the chassis 24 is tightly attached to the lower end face of the sealed heat supply cover 13, the space in the sealed heat supply cover 13 is closed, and the materials on the fire grate frame 16 can be heat treated in the sealed heat supply cover 13; during the heat treatment process, the heat supply device 12 is started to make the plurality of heating ring walls 15 arranged in the sealed heat supply cover 13 work; at the same time, under the cooperation of the end face bearing 23, the driving motor 25 can drive the fire grate frame 16 on the chassis 24 to rotate, and during the rotation of the fire grate frame 16, the plurality of mounting holes 22 rotationally arranged on each shelf plate 17 can rotate in cooperation with the fixed wheel 20, so that each spring material revolves and rotates at the same time during the heat treatment process, thereby improving the uniformity of the heating of the materials during the heat treatment process.

[0034] After the heat treatment is completed, the output end of the first electric push rod 26 is retracted, and the chassis 24 and the parts and materials thereon are moved downward, after the parts and materials on the chassis 24 leave the sealed heat supply cover 13, the production personnel only needs to wait for cooling to take away.

[0035] Embodiment Two

[0036] Reference is made to the accompanying drawings Figure 1 , the accompanying drawings Figure 3 , and the accompanying drawings Figure 4Each layer of the shelf plate 17 is provided with a plurality of openings 18, so that the shelf plate 17 is in a hollow shape; the upper end surface of the sealing heating cover 13 is further fixedly provided with a plurality of fans 14. As a further embodiment, considering that the material near the heating ring wall 15 part is heated more during the heat treatment, the fan 14 can promote the heat circulation between the multiple layers of shelf plates 17 in the sealing heating cover 13, assist the heat treatment of the spring, make it more uniform, and improve the overall heat treatment effect.

[0037] As used in the specification and claims, certain terminology is used to refer to certain components. Those of ordinary skill in the art will appreciate that hardware manufacturers can refer to the same component using different names. The specification and claims do not distinguish components based on the names used to refer to them, but rather on the functional differences between the components. As used throughout the specification and claims, "comprising" is an open term, and thus should be interpreted to cover "comprising but not limited to" the recited elements. "Approximately" means within an acceptable error range for the corresponding function, which those of ordinary skill in the art will understand.

[0038] It should be noted that the terms "comprising," "including," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process or method. Without more limitations, an element defined by the phrase "comprising a" does not exclude the existence of additional identical elements in the process or system comprising the element.

[0039] The above description illustrates and describes several preferred embodiments of the present application, but as previously mentioned, it is understood that the present application is not limited to the forms described herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application described herein, by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application should be within the scope of protection of the claims of the present application.

Claims

1. A spring production elevator type multi-layer tempering furnace comprising a base (10), characterized in that, The upper end face of the base (10) is fixedly provided with a crossbeam (11), the lower side of the crossbeam (11) is fixedly provided with a sealed heating cover (13), the lower side of the sealed heating cover (13) is slidably provided with a bottom tray (24), the upper end face of the bottom tray (24) is rotatably provided with a stove frame (16), the stove frame (16) is composed of a plurality of layers of frame plates (17), the upper end face of each layer of the frame plates (17) is provided with a fixed assembly, the sealed heating cover (13) is fixedly provided with a central fixed rod (19), and one side of the crossbeam (11) is fixedly provided with a feeding assembly on the upper end face of the base (10).

2. The multi-layered spring production tempering furnace according to claim 1, wherein, The fixed assembly comprises a plurality of fixed wheels (20) linearly arranged on the outer circumferential surface of the central fixed rod (19), the outer side of each fixed wheel (20) is rotatably provided with a plurality of rotating wheels (21) that are mutually meshed in transmission on the corresponding frame plate (17), and each rotating wheel (21) is provided with a mounting hole (22) for placing a spring.

3. The multi-layered spring production tempering furnace according to claim 1, wherein, The feeding assembly comprises a supporting frame (28) fixedly arranged on the upper end face of the base (10), the supporting frame (28) is fixedly provided with a second electric push rod (32), the output end of the second electric push rod (32) is connected with a sliding plate (29), the sliding plate (29) is equidistantly provided with a plurality of feeding holes (30), and each feeding hole (30) is fixedly provided with a switch valve (31).

4. The multi-layered spring production tempering furnace according to claim 1, wherein The upper side of the sealed heating cover (13) is fixedly provided with a heating device (12) on the crossbeam (11), and the inner wall of the sealed heating cover (13) is provided with a plurality of heating ring walls (15).

5. The multi-layered spring production tempering furnace according to claim 4, wherein The upper end face of the sealed heating cover (13) is fixedly provided with a plurality of fans (14), the lower side of each fan (14) is provided with a plurality of openings (18) on each frame plate (17), and the overall end face of the frame plate (17) is hollow.

6. The multi-layered spring production tempering furnace according to claim 2, wherein The lower end face of the bottom tray (24) is fixedly provided with a driving motor (25), the output end of the driving motor (25) penetrates through the upper end face of the bottom tray (24) and is connected with the lower end face of the stove frame (16), and a face shaft bearing (23) is further connected between the lower end face of the stove frame (16) and the upper end face of the bottom tray (24).

7. The multi-stage tempering furnace according to claim 5, wherein The lower side of the sealed heating cover (13) is fixedly provided with a first electric push rod (26) on the upper end face of the base (10), and the output end of the first electric push rod (26) is connected with the bottom tray (24).

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