Graphite packing ring pressing die

Abstract

The utility model relates to the technical field of graphite ring pressing equipment, in particular to a graphite packing ring pressing die, and aims to solve the problems of bubbles, fiber breakage, uneven thickness and the like in the traditional manufacturing process and realize automatic production. The die comprises an upper die and a lower die which are respectively arranged on an upper workbench and a lower workbench of a rack, the lower die is composed of an outer forming ring and an inner forming ring, and a forming groove is formed between the outer forming ring and the inner forming ring. A center hole is formed in the bottom of the outer forming ring and matched with a positioning cylinder at the bottom of the inner forming ring, and a spiral sliding groove and a sliding block structure are designed inside. And the ejection column is matched with the positioning cylinder through the sliding disc and is connected with the ejection driving device. The top of the inner forming ring is matched with an inner pressing ring in the upper die, the inner forming ring is forced to move spirally in the downward pressing process, reverse rotation treatment of the graphite belt ring is automatically completed, and tight attachment is ensured. According to the utility model, high-efficiency and high-quality automatic production is realized, and the quality and the production efficiency of the graphite packing ring are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to graphite packing ring pressing equipment technical field, concretely relates to a graphite packing ring pressing mould. BACKGROUND

[0002] The information disclosed in the background of the utility model is only intended to increase the understanding of the overall background of the utility model, and is not necessarily regarded as acknowledging or implicitly suggesting that the information constitutes prior art known to those skilled in the art.

[0003] In the field of mechanical engineering, graphite packing rings are a type of sealing element commonly used in static or dynamic sealing applications in mechanical engineering. They are mainly made of graphite material and are widely used in various industrial equipment, such as pumps, valves, compressors and other rotating or reciprocating machines, to prevent fluid leakage.

[0004] In the prior art, graphite packing rings are mostly pressed from graphite tape. When the graphite packing ring is formed, it is prone to have air bubbles inside, internal fiber breakage, uneven thickness, and other issues, affecting the quality of the finished graphite packing ring.

[0005] To improve the above problems, some existing technologies attempt to reverse the rotation of the first end of the innermost circle of the graphite tape to make the adjacent circles fit more tightly, thereby reducing internal air bubbles and improving local density that is too small or too large. However, these methods mostly rely on manual operation, lack of automation support, resulting in low processing efficiency, and it is difficult to ensure consistency and accuracy of each operation. UTILITY MODEL CONTENT

[0006] To solve the above technical problems, the utility model provides a graphite packing ring pressing mould, which not only effectively solves the defects in traditional manufacturing process, but also realizes automatic production, improves work efficiency, and ensures the consistency and reliability of product quality.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A graphite packing ring pressing mould, comprising an upper mould and a lower mould, the lower mould comprising an outer forming ring and an inner forming ring, the outer forming ring and the inner forming ring forming a forming groove therebetween;

[0009] A central hole is provided at the bottom center of the outer forming ring, and a positioning cylinder adapted to the central hole is provided at the bottom of the inner forming ring, the inner wall of the positioning cylinder and the outer wall of the positioning cylinder are provided with adapted spiral sliding grooves and spiral sliding blocks;

[0010] The positioning cylinder is matched with an ejection column, and the ejection column is concentrically provided with a sliding disc matched with the center hole;

[0011] The ejection column is connected with the output end of an ejection driving device.

[0012] As preferred, the sliding disc is provided with an elastic column module matched with the positioning cylinder.

[0013] As preferred, the elastic column module comprises three or more elastic column bodies, and the sliding disc is provided with a guide hole in the up-down direction.

[0014] The elastic column body is provided with a guide sliding block matched with the guide hole, and the elastic column body is further provided with a spring, and the guide hole is further provided with a limiting hole plug.

[0015] As preferred, the ejection column is provided with a positioning sharp head at the top end, and the positioning cylinder is provided with a positioning center hole.

[0016] The column section diameter of the positioning sharp head is smaller than the column section diameter of the spiral sliding groove or the spiral sliding block.

[0017] As preferred, the upper die comprises an outer pressing ring matched with the forming groove, the outer pressing ring is concentrically provided with an inner pressing ring inside, and a first containing groove is arranged between the outer pressing ring and the inner pressing ring.

[0018] The inner forming ring is provided with a center column matched with the inner pressing ring at the top center, and the center column is provided with a second containing groove matched with the inner pressing ring at the periphery.

[0019] As preferred, the center column is provided with an operation hole.

[0020] As preferred, the upper die is installed on an upper workbench of a rack, and the lower die is installed on a lower workbench.

[0021] The upper die is installed on the output end of a downward pressing driving device.

[0022] The utility model includes but is not limited to the following beneficial effects:

[0023] The utility model discloses a spiral sliding groove and a spiral sliding block are designed, and the reverse rotation of the graphite band ring is automatically completed in the downward pressing process, so that the graphite band is more closely attached between each ring, and the formation of internal bubbles is reduced.

[0024] The design of the inner and outer pressing rings ensures that the graphite band is uniformly pressed during the forming process, improves the problem of uneven thickness, reduces the risk of fiber breakage, and improves the overall density uniformity and structural integrity of the finished product.

[0025] The utility model discloses a replace the traditional manual adjustment mode with automatic operation, greatly shorten the processing time of every graphite packing ring, improve the output per unit time. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the whole structure schematic diagram of the utility model;

[0027] Figure 2 It is the three-dimensional structure schematic diagram of upper mould;

[0028] Figure 3 It is the three-dimensional structure schematic diagram of lower mould;

[0029] Figure 4 It is the lower side structure schematic diagram of inner forming ring;

[0030] Figure 5 It is Figure 1 The utility model discloses an enlarged structure schematic diagram of A place in middle.

[0031] The reference of drawing involved in the drawing has: 100, upper workbench;200, lower workbench;300, lower pressure driving device;400, upper mould;401, first containing groove;402, inner pressure ring;500, outer forming ring;501, forming recess;600, inner forming ring;601, positioning hole center;602, center column;603, positioning cylinder;604, second containing groove;605, spiral recess;700, ejection driving device;701, ejection column;702, positioning sharp head;703, sliding disc;704, elastic column module;7041, guide sliding block;7042, guide hole;7043, spring;7044, limit hole plug;705, spiral sliding block. DETAILED DESCRIPTION

[0032] In order to make the person skilled in the art can better understand the utility model, the utility model technical scheme is further explained below with the drawings and examples.

[0033] Figures 1 to 5 Show a kind of graphite packing ring press mould, including upper mould 400 and lower mould, the upper mould 400 is installed in the upper workbench 100 of rack, the lower mould is installed in lower workbench 200;The upper mould 400 is installed in the output end of lower pressure driving device 300 The lower mould includes outer forming ring 500 and inner forming ring 600, forming recess 501 is constituted between the outer forming ring 500 and inner forming ring 600;

[0034] The bottom center of the outer forming ring 500 is provided with a center hole, and the bottom of the inner forming ring 600 is provided with a positioning cylinder 603 matched with the center hole; the inner wall of the positioning cylinder 603 and the outer wall of the positioning cylinder 603 are provided with matched spiral sliding grooves and spiral sliding blocks 705;

[0035] The positioning cylinder 603 is matched with an ejection column 701, and the ejection column 701 is concentrically provided with a sliding disc 703 matched with the center hole, so as to provide a guide for the ejection column 701 and manufacture installation space for the elastic column and the spiral sliding block 705; the ejection column 701 is connected with the output end of an ejection driving device 700.

[0036] In order to improve the balance and stability of the inner forming ring 600, the upper side of the sliding disc 703 is provided with an elastic column module 704 matched with the positioning cylinder 603, and the smoothness of taking down the inner forming ring 600 can also be improved.

[0037] The specific structure of the elastic column module 704 can be as follows: including three or more elastic column bodies, the sliding disc 703 is provided with a guide hole 7042 in the upward and downward direction, and the elastic column body is matched in the guide hole 7042; the elastic column body is provided with a guide sliding block 7041 matched with the guide hole 7042, the elastic column body is further provided with a spring 7043, and the guide hole 7042 is further provided with a limiting hole plug 7044 which can be threadedly connected at the end of the guide hole 7042 to play a limiting role.

[0038] In order to further strengthen the positioning effect, the top end of the ejection column 701 is provided with a positioning sharp head 702, and the positioning cylinder 603 is provided with a positioning hole center 601.

[0039] In order to further strengthen the matching effect, the diameter of the column segment of the positioning sharp head 702 is smaller than the diameter of the column segment provided with the spiral sliding groove or the spiral sliding block 705, so as to prevent interference with the spiral sliding block 705.

[0040] The structure of the upper die 400 can be as follows: including an outer pressure ring matched with the forming groove 501, the outer pressure ring is concentrically provided with an inner pressure ring 402 in the inner pressure ring 402, and the outer pressure ring and the inner pressure ring 402 are provided with a first containing groove 401;

[0041] The top center of the inner forming ring 600 is provided with a center column 602 which can be matched in the inner pressure ring 402, and the periphery of the center column 602 is provided with a second containing groove 604 matched with the inner pressure ring 402. In the process of pressing down, the inner pressure ring 402 presses the center column 602, forcing the inner forming ring 600 to move downward spirally.

[0042] In order to improve the operability and stability of taking down the inner forming ring 600, the center column 602 is provided with an operation hole.

[0043] The engineering process and principle of the graphite filler ring pressing mold are as follows: the inner forming ring 600 is used to wind the graphite band, the inner forming ring 600 after winding the graphite band is installed in the center hole, and the inlet of the spiral chute and the spiral sliding block 705 is matched; then, the downward pressing action of the upper mold 400 is started under the driving of the downward pressing driving device 300, in the process of downward pressing, the inner forming ring 600 starts to rotate spirally due to the matching of the spiral chute and the spiral sliding block 705, and the reverse rotation processing of the graphite band ring is automatically completed. After the pressing forming of the graphite ring is completed, the inner forming ring 600 is driven to complete demolding under the driving of the ejection driving device 700; finally, the inner forming ring 600 is taken off, and a new inner forming ring 600 winding the graphite band is replaced.

[0044] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0045] The terms "upper", "lower", "outer side", "inner side" and the like in the description and claims of the present application and the above drawings, if any, are used to distinguish the relative position relationship, and do not have to be given a nature. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A graphite filler ring pressing mold, comprising an upper mold and a lower mold, wherein the lower mold comprises an outer forming ring and an inner forming ring, and a forming groove is formed between the outer forming ring and the inner forming ring; characterized in that: The outer forming ring has a central hole at its bottom center, and the inner forming ring has a positioning cylinder at its bottom that matches the central hole. The inner wall and outer wall of the positioning cylinder are provided with matching spiral grooves and spiral sliders. The positioning cylinder is fitted with an ejector column, and the ejector column is concentrically provided with a sliding plate that matches the central hole; The ejector column is connected to the output end of the ejector drive device.

2. The graphite packing ring pressing mold as described in claim 1, characterized in that: The upper side of the slide is provided with an elastic column module that cooperates with the positioning cylinder.

3. The graphite packing ring pressing mold as described in claim 2, characterized in that: The elastic column module includes three or more elastic column bodies, and the sliding plate has guide holes in the vertical direction; The elastic column body is provided with a guide slider that is adapted to the guide hole, the elastic column body is also provided with a spring, and the guide hole is also provided with a limit hole plug.

4. The graphite packing ring pressing mold as described in claim 1, characterized in that: The top of the ejector column is provided with a positioning tip, and the positioning cylinder is provided with a positioning hole. The diameter of the column segment of the positioning tip is smaller than the diameter of the column segment with the spiral groove or spiral slider.

5. The graphite packing ring pressing mold as described in claim 1, characterized in that: The upper mold includes an outer pressure ring adapted to the forming groove, an inner pressure ring is concentrically arranged inside the outer pressure ring, and a first receiving groove is provided between the outer pressure ring and the inner pressure ring; The inner forming ring has a central post at the top center that can be fitted inside the inner pressure ring, and a second receiving groove adapted to the inner pressure ring is formed around the central post.

6. The graphite packing ring pressing mold as described in claim 5, characterized in that: An operating hole is provided on the central column.

7. The graphite packing ring pressing die as described in any one of claims 1 to 6, characterized in that: The upper mold is mounted on the upper worktable of the machine frame, and the lower mold is mounted on the lower worktable; The upper mold is installed at the output end of the lower pressure drive device.

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