Efficient heating structure for vacuum brazing

Abstract

The utility model discloses a vacuum brazing efficient heating structure which comprises a base and a bottom heating module, a portal frame comprises vertical plates and a cross beam, a pair of vertical plates are arranged on the two opposite sides of the base, the cross beam is arranged on the vertical plates, a hanging piece is arranged on the side, close to the vertical plates, of the cross beam in a sleeved mode, and at least part of the position of the hanging piece is telescopic so that the bottom end of the hanging piece can be lifted. The side heating modules are arranged at the tail end of the suspension part and located beside the bottom heating module, the feeding plate is used for bearing products, supporting belts are symmetrically arranged on the two sides of the feeding plate, and when the feeding plate translates above the bottom heating module, the supporting belts abut against the lower ends of the side heating modules and lift the side heating modules. According to the utility model, the side heating modules are suspended through the telescopic suspension pieces, so that the distance between the side heating modules and the bottom heating module and the distance between a pair of side heating modules are ensured, products can enter the heating modules more easily and are heated after being in close contact, and the heating efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum brazing devices, and particularly relates to an efficient heating structure for vacuum brazing. Background Art

[0002] In the existing vacuum brazing devices, generally, the heating structure (heating module) is fixedly arranged in a circular or square structure in the furnace body to form a radiation heating structure. For example, a vacuum brazing furnace using a metal quartz integrated radiation heater with the application number 201310090962.6 discloses using an infrared radiation integrated metal quartz sheet with high heat conversion efficiency as the heating body, arranging the heating body in a more compact octagonal structure, and using multilayer heat insulation protection plates and other means to improve the heating effect. However, when the product to be vacuum brazed enters the furnace body and is located within the heating structure, the heating module is at a relatively far distance from the product, and the distance of heat conduction is also relatively far, resulting in low heating efficiency. If the relative distance between the heating modules is set to be relatively close, especially when the distance between the side heating modules or between the side heating module and the bottom heating module is relatively close, on the one hand, it will affect the feeding of the product into the heating module, and on the other hand, the fixedly arranged side heating module may prevent the product from entering the heating module due to the product being slightly wider. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an efficient heating structure for vacuum brazing. The side heating modules are suspended by telescopic suspension members, which is beneficial to ensuring the distance between the side heating module and the bottom heating module, as well as between a pair of side heating modules, enabling the product to more easily enter the heating module and be heated in close contact, improving the heating efficiency. Moreover, for a slightly wider product, the side heating module can be translated to a certain extent to ensure its smooth entry into the heating module, with better applicability.

[0004] To achieve the above object, the technical solution adopted by the utility model is: an efficient heating structure for vacuum brazing, including a base and a bottom heating module arranged on the base, and further including:

[0005] A plurality of gantry frames, each gantry frame includes a vertical plate and a cross beam. A pair of the vertical plates are arranged on opposite sides of the base, and the cross beam is arranged on the vertical plates.

[0006] A plurality of suspension members, the suspension members are sleeved on one side of the cross beam close to the vertical plate, and at least part of their positions is telescopic so that the bottom end can be lifted.

[0007] A pair of side heating modules, which are arranged at the ends of the suspension members and are located beside the bottom heating module.

[0008] The feeding plate is used to carry products, and support belts are symmetrically arranged on both sides. When the feeding plate moves horizontally above the bottom heating module, the support belts abut against the lower ends of the side heating modules and lift the side heating modules.

[0009] As a further optimization, guiding inclined surfaces are provided at both the front end and the rear end of the support belt in the feeding direction of the feeding plate, which can smoothly enable the support belt to enter the bottom end of the side heating module.

[0010] As a further optimization, through holes are provided on the cross beam, and the suspension member is bent downward after passing through the through holes, which can position the suspension member.

[0011] As a further optimization, two through holes are provided on each side of the cross beam, and a suspension member is provided in each through hole for suspending the opposite sides of the side heating module, which can ensure the stability of suspending the side heating module.

[0012] As a further optimization, the suspension member includes a suspension rope and a spring. The suspension rope is arranged on the cross beam and is bent downward and then upward. The spring is arranged at the end of the suspension rope and is connected to the side heating module. The elastic restoring action of the spring can provide a certain pulling force for the side heating module and reduce the frictional resistance between the support belt and the side heating module.

[0013] As a further optimization, the number of gantries is three, and the front end, middle part, and rear end of the side heating module are all connected to the suspension member.

[0014] As a further optimization, the feeding plate includes a bottom plate and a mesh plate. A plurality of through holes are provided on the bottom plate, and the mesh plate is in a hollow shape and abuts against the bottom plate and is located above the through holes; the support belt is arranged on the bottom plate.

[0015] As a further optimization, a side heating module and a top heating module are further included. Both are arranged on the cross beam, and the side heating module is located above the side heating module, which can avoid heat dissipation.

[0016] As a further optimization, the bottom heating module, the side heating module, and the top heating module all include a heating plate and heating rods. A plurality of positioning grooves are provided on the heating plate, and the heating rods are embedded in the positioning grooves and abut against the heating plate.

[0017] As a further optimization, positioning pieces are further included, and a plurality of the positioning pieces are locked on the heating plate to limit the heating rods in the positioning grooves.

[0018] Compared with the prior art, the present utility model has the following beneficial effects:

[0019] 1. By means of the bottom heating module and the side heating module with a smaller gap therewith, the distance from the product can be reduced for close contact and post-heating, and the heating effect is more excellent;

[0020] 2. The side heating module is suspended by a telescopic suspension member, which is more conducive to ensuring the distance between it and the bottom heating module and the product. Moreover, the setting of the suspension member allows the side heating module to move to a certain extent (such as rising or offsetting), which is beneficial for the product to be conveyed in place by the feeding plate and can also accommodate slightly wider products;

[0021] 3. The spring provided in the suspension member can lift the side heating module to a certain extent, reducing the resistance when the feeding plate runs at the lower end of the side heating module. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 It is a structural diagram of the present utility model after removing the side heating module and the feeding plate.

[0024] Figure 3 It is Figure 2 an enlarged view of part A in

[0025] Figure 4 It is a structural diagram of the feeding plate of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following are specific embodiments of the present utility model in combination with the accompanying drawings, and the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0027] Such as Figures 1 to 4As shown in the figure, a high-efficiency heating structure for vacuum brazing includes a base 10 and a bottom heating module 31. The base 10 includes a substrate 11 and a base 12 provided on the substrate 11, and the two can be connected by elastic support columns. The heating module 31 is provided on the base 12. The high-efficiency heating structure further includes a gantry 20, side heating modules 51, suspension members 52, and a feeding plate 40. There are multiple gantries 20, and preferably three gantries 20 are provided in the present invention. The gantry 20 includes a vertical plate 21 and a cross beam 22. A pair of vertical plates 21 are provided on opposite sides of the base 10, and the cross beam 22 is provided on the vertical plate 21. There are multiple suspension members 52, and preferably twelve suspension members 52 are provided in the present invention, that is, two are provided on each side of each cross beam 22 close to the vertical plate 21. Through these two suspension members, the relative two sides at the same position on the side heating module 51 can be suspended simultaneously. Therefore, through the above three gantries 20 and twelve suspension members 52, the two sides of the front end, middle, and rear end of each side heating module 51 can be suspended, ensuring the horizontal state of the side heating module 51 and its stability when subjected to external forces. At least part of the position of the suspension member 52 is telescopic so that its bottom end together with the side heating module 51 can be lifted. A pair of side heating modules 51 are located beside the bottom heating module 31. The feeding plate 40 is used to carry products, and support belts 401 are symmetrically provided on both sides thereof. When the feeding plate 40 moves horizontally above the bottom heating module 31, the support belts 401 abut against the lower end of the side heating module 51 and lift the side heating module 51.

[0028] In the present invention, to ensure the efficient utilization of heat energy, the form of enclosing conventional heating modules to form a relatively large space and heating the products entering therein in a radiation form is adjusted, that is, the products are made as close to and in contact with the heating modules as possible. Specifically, the products are located on the feeding plate 40, and the feeding plate 40 feeds materials above the bottom heating module 31 (by manual or mechanical feeding methods), which can efficiently achieve heat conduction. The side heating modules 51 are located beside the bottom heating module 31 in a suspended manner rather than by a fixed installation method. In the suspended form, when the feeding plate 40 drives the products to move above the bottom heating module 31, to ensure that the feeding plate 40 can move smoothly, the support belts 401 abut against the lower end of the side heating module 51 to lift it, achieving relatively small friction and then smoothly reaching the position. Through this design, the vertical distance between the side heating module 51 and the bottom heating module 31 can be minimized as much as possible, enabling the side heating module 51 to abut and cover the side wall areas on both sides of the products as much as possible, improving the heat transfer effect; in addition, since the side heating modules 51 are suspended, on the basis of having the function of vertical movement, for slightly wider products, the side heating modules 51 can (be pushed to one side by the side walls of the products) achieve a certain degree of horizontal or oblique offset, that is, to a certain extent, the distance between a pair of side heating modules 51 is increased, which can be applicable to the entry and heating of slightly wider products.

[0029] Furthermore, to facilitate the smooth entry of the feeding plate 40 to the lower end of the side heating module 51, guiding inclined surfaces 401a are provided at both the front end and the rear end of the supporting belt 401 in the feeding direction of the feeding plate, and the abutting transition is smoothly achieved through the guiding inclined surfaces 401a.

[0030] As Figure 3 shown, a perforation 220 is provided on the cross beam 22. After the suspension member 52 passes through the perforation 220 and bends downward, the position of the suspension member 52 on the cross beam 22 can be fixed to prevent the suspension member 52 from shifting, and it can be relatively easily reset even after the side heating module 51 is pushed a certain distance to one side by a wider product.

[0031] Based on the fact that two suspension members 52 are provided on each side of the above-mentioned cross beam 22, two perforations 220 are provided on each side of the cross beam 22 for respectively positioning the two suspension members 52.

[0032] More specifically, the suspension member 52 includes a suspension rope 521 and a spring 522. The suspension rope 521 is arranged on the cross beam 22 and bends downward and then upward. The spring 522 is arranged at the end of the suspension rope 521 and is connected to the side heating module 51. The elastic restoring effect of the spring 522 can apply an upward pulling force to the side heating module 51. When the supporting belt 401 abuts against the lower end of the side heating module 51 and moves, the upward pulling effect of the spring 522 on the side heating module 51 can be used to reduce the friction between the supporting belt 401 and the side heating module 51.

[0033] As Figure 4 shown, the feeding plate 40 includes a bottom plate 41 and a mesh plate 42. A plurality of through holes 410 are provided on the bottom plate 41 for large-area heat conduction. The mesh plate 42 is in a hollow shape and abuts against the bottom plate 41 and is located above the through holes 410. The through holes 510 on the bottom plate 41 and the hollow structure on the mesh plate 42 can efficiently achieve heat conduction; the supporting belt 401 is arranged on the bottom plate 41 and is located beside the through holes 510. A limiting rod 411 is also provided on the bottom plate 41 for restricting the movement of the product at both the front and the rear ends.

[0034] Again, as Figure 2 and Figure 3 shown, the high-efficiency heating structure further includes a side heating module 32 and a top heating module 33, both of which are arranged on the cross beam 22. Specifically: the side heating module 32 is hung on the cross beam 22 through an inverted U-shaped hanger 221, the top heating module 33 is locked on the cross beam 22 through a bolt 222, and the side heating module 32 is located above the side heating module 51. On the basis of the efficient heating of the product by the bottom heating module 31 and the side heating module 51, the radiation-type heating space formed by the side heating module 32 and the top heating module 33 can prevent heat from being conducted outward, improving the utilization efficiency of heat.

[0035] The bottom heating module 31, the side heating module 32 and the top heating module 33 all include a heating plate 301 and a heating rod 302. A plurality of positioning grooves 300 are provided on the heating plate 301, and the heating rod 302 is embedded in the positioning groove 300 and abuts against the heating plate 301. Of course, the side heating module 51 can also adopt the form of a combination of a heating part and a heating rod.

[0036] To ensure the installation stability of the heating rod 302, the heating rod 302 can be limited in the positioning groove 300 by locking it to the heating plate 301 through a plurality of positioning pieces 303.

[0037] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A vacuum brazing high-efficiency heating structure, comprising a base and a bottom heating module arranged on the base, characterized in that: Also includes: A plurality of gantries, each of which comprises a vertical plate and a horizontal beam, wherein a pair of the vertical plates are arranged on opposite sides of the base, and the horizontal beam is arranged on the vertical plates. A plurality of hanging parts, wherein the hanging parts are sleeved on one side of the cross beam close to the vertical plate, and at least part of the hanging parts can be retracted so that the bottom end can be lifted. A pair of side heating modules are arranged at the ends of the suspension member and are located beside the bottom heating module. A feeding plate is used to carry products, and support belts are symmetrically arranged on both sides. When the feeding plate translates above the bottom heating module, the support belts abut against the lower end of the side heating module and lift the side heating module.

2. The high-efficiency heating structure for vacuum brazing according to claim 1, characterized in that: The front end and the rear end of the support belt in the feeding direction of the feeding plate are both provided with guiding inclined surfaces.

3. The efficient heating structure for vacuum brazing according to claim 1, characterized in that: The crossbeam is provided with a through hole, and the hanging piece passes through the through hole and then bends downward.

4. The efficient heating structure for vacuum brazing according to claim 3, characterized in that: Each side of the crossbeam is provided with two through holes, and each through hole is provided with a hanging piece for hanging the opposite sides of the side heating module.

5. The efficient heating structure for vacuum brazing according to claim 3 or 4, characterized in that: The hanging member comprises a hanging rope and a spring. The hanging rope is arranged on the cross beam and is bent upward and downward. The spring is arranged at the end of the hanging rope and is connected to the side heating module.

6. The high-efficiency heating structure for vacuum brazing according to claim 5, characterized in that: There are three gantries, and the front end, middle part and rear end of the edge heating module are all connected to the suspension member.

7. The efficient heating structure for vacuum brazing according to claim 1, characterized in that: The feeding plate comprises a bottom plate and a mesh plate, the bottom plate is provided with a plurality of through holes, the mesh plate is hollowed out and abuts against the bottom plate and is located above the through holes; the supporting belt is arranged on the bottom plate.

8. The efficient heating structure for vacuum brazing according to claim 1, characterized in that: It also includes a side heating module and a top heating module, both of which are arranged on the crossbeam, and the side heating module is located above the edge heating module.

9. The efficient heating structure for vacuum brazing according to claim 8, characterized in that: The bottom heating module, the side heating module and the top heating module all include a heating plate and a heating rod. The heating plate is provided with a plurality of positioning grooves. The heating rods are embedded in the positioning grooves and abut against the heating plate.

10. The efficient heating structure for vacuum brazing according to claim 9, characterized in that: It also includes positioning pieces, and a plurality of the positioning pieces are locked on the heating plate to limit the heating rod to be located in the positioning groove.

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