Cylindrical heating mantle for CVD (Chemical Vapor Deposition) coating equipment

Abstract

The utility model relates to the technical field of metal cutting tools and tool and mold coatings, in particular to a cylindrical heating mantle for CVD (chemical vapor deposition) coating equipment, which comprises a heating mantle body, the heating mantle body comprises a shell, and three groups of falling buffer components are arranged at the bottom of the shell. The falling buffering assembly comprises a connecting cylinder and a buffering cylinder which are arranged at the bottom of the shell, the top of the connecting cylinder is fixedly connected with the bottom of the shell, the lower portion of the connecting cylinder extends into the buffering cylinder, and the left side and the right side of the connecting cylinder are both fixedly connected with limiting rolling wheels; limiting sliding grooves are formed in the inner walls of the left side and the right side of a buffer cylinder, the surfaces of the two limiting rolling wheels are movably connected with the inner walls of the two limiting sliding grooves correspondingly, a buffer spring is fixedly connected to the top of an inner cavity of a connecting cylinder, and a pressing block is fixedly connected to the bottom end of the buffer spring, so that the falling position of the heating cover can be more accurate; and the impact force can be buffered.

Description

Technical Field

[0001] The utility model relates to the technical field of metal cutting tools and tool and die coatings, in particular to a cylindrical heating cover used for CVD coating equipment. Background Art

[0002] CVD is a method of forming a film on the surface of other materials (substrates) for metal processing workpieces such as molds, cutting tools, wear-resistant and corrosion-resistant parts, etc., especially a thin film forming method. The characteristic of chemical vapor deposition is the chemical reaction of the compounds contained in the reaction gas. The desired main products of the chemical reaction are deposited on the surface of the substrate and form a coating or film there. Possible reaction by-products appear in gas form and must be removed from the gas mixture to ensure the performance of the film. This is achieved through the exhaust pipe. The service life of the coated cutting tools and molds will be greatly improved, and the coated parts will be more corrosion-resistant and wear-resistant. Because the heating hood has a large weight, it will cause a large impact when it is hoisted and dropped, which may cause damage to the outer shell of the heating hood or the internal parts of the heating hood to fall off or be damaged, seriously affecting the safety of the use of the heating hood. Utility Model Content

[0003] The utility model aims to provide a cylindrical heating cover for CVD coating equipment to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A cylindrical heating hood for CVD coating equipment comprises a heating hood body, the heating hood body comprises an outer shell, and three sets of falling buffer components are arranged at the bottom of the outer shell;

[0006] The falling buffer assembly includes a connecting tube and a buffer tube arranged at the bottom of the shell, the top of the connecting tube is fixedly connected to the bottom of the shell, the bottom of the connecting tube extends to the inside of the buffer tube, the left and right sides of the connecting tube are fixedly connected to the limiting rollers, the left and right inner walls of the buffer tube are provided with limiting slide grooves, the surfaces of the two limiting rollers are respectively movably connected to the inner walls of the two limiting slide grooves, the top of the inner cavity of the connecting tube is fixedly connected with a buffer spring, the bottom end of the buffer spring is fixedly connected with a pressure block, the bottom of the inner cavity of the buffer tube is provided with an elastic sheet, the middle of the elastic sheet is an arc-shaped arch, the left and right ends of the elastic sheet are respectively fixedly connected to the left and right sides of the bottom of the inner cavity of the buffer tube, the bottom of the pressure block contacts the top of the elastic sheet, and the bottom of the buffer tube is fixedly connected with a support foot.

[0007] As a preferred solution of the present invention, the structures of the three drop buffer components are arranged identically.

[0008] As a preferred solution of the utility model, a lifting ear is fixedly connected to the top of the shell, and an integrated power junction box is fixedly connected to the top of the back side of the shell.

[0009] As a preferred solution of the utility model, the inner wall of the shell is fixedly connected with a refractory material, and a resistance wire is arranged inside the refractory material. The resistance wire is embedded in the refractory material in a spiral winding manner, layered and evenly arranged in an annular manner.

[0010] As a preferred solution of the utility model, guide rods are provided on both sides of the shell, guide grooves are provided on both sides of the two guide rods, and guide shells are fixedly connected to both sides of the shell.

[0011] As a preferred solution of the utility model, guide rollers are fixedly connected to the left and right sides of the inner cavities of the two guide shells, the total number of the guide rollers is eight, and the eight guide rollers are evenly arranged in a group of two inside the two guide shells, and the surfaces of the four groups of bottom guide rollers are movably connected to the inner walls of the four guide grooves respectively.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the present invention, the setting of the guide rod and the guide shell can guide the falling of the heating cover body, thereby avoiding shaking of the heating cover body when it descends, and making the falling of the heating cover body more accurate.

[0014] 2. In the present invention, the impact force of the heating cover body when it falls can be buffered by the falling buffer component, so as to avoid the parts inside the heating cover body being damaged by the impact force generated by the falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 It is an enlarged structural schematic diagram of A of the utility model;

[0018] Figure 4 It is an enlarged structural schematic diagram of B of the utility model.

[0019] In the figure: 1. Heating hood body; 101. Shell; 102. Lifting ear; 103. Integrated power junction box; 104. Refractory material; 105. Resistance wire; 2. Guide rod; 3. Guide groove; 4. Guide shell; 5. Guide roller; 6. Falling buffer assembly; 601. Connecting cylinder; 602. Buffer spring; 603. Limiting roller; 604. Buffer cylinder; 605. Limiting slide groove; 606. Press block; 607. Elastic sheet; 608. Support foot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0024] For examples, see Figure 1 , Figure 2 , Figure 4 , the utility model provides a technical solution:

[0025] A cylindrical heating hood for CVD coating equipment comprises a heating hood body 1, the heating hood body 1 comprises a shell 101, three sets of falling buffer components 6 are arranged at the bottom of the shell 101, the falling buffer component 6 comprises a connecting cylinder 601 and a buffer cylinder 604 arranged at the bottom of the shell 101, the top of the connecting cylinder 601 is fixedly connected to the bottom of the shell 101, the bottom of the connecting cylinder 601 extends to the inside of the buffer cylinder 604, the left and right sides of the connecting cylinder 601 are fixedly connected to the limiting rollers 603, the inner walls of the left and right sides of the buffer cylinder 604 are provided with limiting slide grooves 605, and the two limiting rollers 60 3 are movably connected with the inner walls of the two limiting slide grooves 605 respectively, the top of the inner cavity of the connecting cylinder 601 is fixedly connected with a buffer spring 602, the bottom of the buffer spring 602 is fixedly connected with a pressure block 606, the bottom of the inner cavity of the buffer cylinder 604 is provided with an elastic sheet 607, the middle of the elastic sheet 607 is an arc-shaped arch, the left and right ends of the elastic sheet 607 are respectively fixedly connected with the left and right sides of the bottom of the inner cavity of the buffer cylinder 604, the bottom of the pressure block 606 is in contact with the top of the elastic sheet 607, the bottom of the buffer cylinder 604 is fixedly connected with a support foot 608, and the structures of the three falling buffer components 6 are arranged in the same way.

[0026] like Figure 1 , Figure 2 As shown, a lifting ear 102 is fixedly connected to the top of the outer shell 101, an integrated power junction box 103 is fixedly connected to the top of the back side of the outer shell 101, a refractory material 104 is fixedly connected to the inner wall of the outer shell 101, and a resistance wire 105 is arranged inside the refractory material 104. The resistance wire 105 is embedded in the refractory material 104 in a spiral winding manner, layered and evenly arranged in a ring.

[0027] like Figure 1 , Figure 3 As shown, guide rods 2 are provided on the left and right sides of the shell 101, guide grooves 3 are opened on the left and right sides of the two guide rods 2, guide shells 4 are fixedly connected on the left and right sides of the shell 101, guide rollers 5 are fixedly connected on the left and right sides of the inner cavities of the two guide shells 4, and the total number of guide rollers 5 is eight. The eight guide rollers 5 are evenly arranged in the interior of the two guide shells 4 in groups of two, and the surfaces of the four groups of bottom guide rollers 5 are movably connected to the inner walls of the four guide grooves 3 respectively.

[0028] The working process of the utility model is as follows: when in use, the heating hood body 1 slowly falls, the guide shell 4 slides on the surface of the guide rod 2, and the internal guide roller 5 slides on the inner wall of the guide groove 3, which can guide the heating hood body 1 to prevent the heating hood body 1 from shaking during the falling process. After it falls completely, the support foot 608 is subjected to the impact force to squeeze the buffer cylinder 604, the limiting slide groove 605 moves upward, and the limiting roller 603 slides inside the limiting slide groove 605, and the buffer cylinder 604 and the connecting cylinder 601 squeeze the buffer spring 602 and the elastic sheet 607 to absorb and buffer the impact force.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cylindrical heating hood for a CVD coating device, comprising a heating hood body (1), characterized in that: The heating hood body (1) comprises an outer shell (101), and three groups of falling buffer components (6) are arranged at the bottom of the outer shell (101); The drop buffer assembly (6) comprises a connecting tube (601) and a buffer tube (604) arranged at the bottom of the shell (101); the top of the connecting tube (601) is fixedly connected to the bottom of the shell (101); the bottom of the connecting tube (601) extends to the inside of the buffer tube (604); the left and right sides of the connecting tube (601) are fixedly connected to limiting rollers (603); the left and right inner walls of the buffer tube (604) are provided with limiting sliding grooves (605); the surfaces of the two limiting rollers (603) are movably connected to the inner walls of the two limiting sliding grooves (605) respectively. A buffer spring (602) is fixedly connected to the top of the inner cavity of the connecting tube (601), a pressure block (606) is fixedly connected to the bottom of the buffer spring (602), an elastic sheet (607) is arranged at the bottom of the inner cavity of the buffer tube (604), the middle of the elastic sheet (607) is arranged in an arc-shaped arch, the left and right ends of the elastic sheet (607) are respectively fixedly connected to the left and right sides of the bottom of the inner cavity of the buffer tube (604), the bottom of the pressure block (606) is in contact with the top of the elastic sheet (607), and the bottom of the buffer tube (604) is fixedly connected to a support foot (608).

2. A cylindrical heating hood for CVD coating equipment according to claim 1, characterized in that: The structures of the three drop buffer components (6) are arranged identically.

3. A cylindrical heating hood for CVD coating equipment according to claim 1, characterized in that: A lifting ear (102) is fixedly connected to the top of the housing (101), and an integrated power connection box (103) is fixedly connected to the top of the back side of the housing (101).

4. A cylindrical heating hood for CVD coating equipment according to claim 1, characterized in that: The inner wall of the shell (101) is fixedly connected with a refractory material (104), and a resistance wire (105) is arranged inside the refractory material (104). The resistance wire (105) is embedded inside the refractory material (104) in a spiral winding manner, layered, and evenly arranged in an annular manner.

5. A cylindrical heating hood for CVD coating equipment according to claim 1, characterized in that: Guide rods (2) are provided on both the left and right sides of the shell (101), guide grooves (3) are provided on both the left and right sides of the two guide rods (2), and guide shells (4) are fixedly connected to both the left and right sides of the shell (101).

6. A cylindrical heating hood for CVD coating equipment according to claim 5, characterized in that: Guide rollers (5) are fixedly connected to the left and right sides of the inner cavity of the two guide shells (4), and the total number of the guide rollers (5) is eight. The eight guide rollers (5) are evenly arranged in a group of two each inside the two guide shells (4), and the surfaces of the four groups of bottom guide rollers (5) are movably connected to the inner walls of the four guide grooves (3) respectively.

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