Grinding pipe forming die

Abstract

The utility model is applicable to the technical field of dies, and provides a grinding pipe forming die, which comprises a die main body, a fixing device and a hole shaping block, and an outer die sleeve and an inner die sleeve are respectively and fixedly connected above a base; the lower part of the upper cover body is fixedly connected with a compaction pipe matched with the forming cavity; a first supporting block is in sliding connection with the interior of the first through hole in a matched manner; the inner side face of the first supporting block is a curved face matched with the inner side face of the outer die sleeve. The fixing frame is fixedly connected with the outer die sleeve; the fixing frame is fixedly connected with an adjusting nut; the adjusting bolt is rotationally connected with the first supporting block; the adjusting bolt is matched with the adjusting nut; a first supporting hole is formed in the outer side of the hole shaping block; and the first supporting hole is matched with the first supporting block, so that the grinding pipe with two discharging structures can be produced, and a specified discharging hole diameter can be formed in a blank forming stage of the grinding pipe by replacing the hole shaping block.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a grinding tube forming mold. Background Technology

[0002] Silicon carbide abrasive tubes have a service life 5-10 times longer than ordinary wear-resistant materials. They are characterized by high hardness, high strength, high wear resistance, high temperature resistance, and good thermal conductivity.

[0003] Depending on customer needs, silicon carbide grinding tubes are divided into two types: center discharge and two-end discharge. Existing single molds are difficult to use for producing both types of grinding tubes. For center discharge grinding tubes, different customer requirements also have requirements for the size of the discharge port in the middle position. During the production of existing center discharge grinding tubes, the discharge port in the middle position often needs to be cut or enlarged later, making it difficult to form the required discharge port diameter during the blank forming stage, which easily leads to waste of silicon carbide raw materials. Existing molds are often fixed structures and it is difficult to change and adjust their own structure to form center discharge ports of different diameters. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide a grinding tube forming mold that can be used to produce grinding tubes with two different discharge structures. By replacing the hole shaping block, a specified discharge port diameter can be formed during the blank forming stage of the grinding tube. The hole shaping block facilitates the formation of the discharge port, and replacing the hole shaping block allows multiple grinding tubes to easily form intermediate discharge ports of different diameters. This avoids the problem of high production costs caused by directly replacing the entire mold and the problem of material waste caused by drilling and enlarging holes in the grinding tube.

[0005] To achieve the above objectives, this utility model provides a grinding tube forming mold, including a mold body, a fixing device, and a hole shaping block. The mold body includes a base, an outer mold sleeve, an inner mold sleeve, and a top cover. The outer mold sleeve and the inner mold sleeve are fixedly connected to the top of the base, and the space between the outer mold sleeve and the inner mold sleeve is a forming chamber. A compaction tube that mates with the forming chamber is fixedly connected to the bottom of the top cover. A first through hole is provided on one side of the outer mold sleeve. A first support block is slidably connected inside the first through hole. The inner surface of the first support block is a curved surface that mates with the inner surface of the outer mold sleeve.

[0006] The fixing device includes a fixing frame, an adjusting bolt, and an adjusting nut; the fixing frame is fixedly connected to the outer mold sleeve; the fixing frame is fixedly connected to the adjusting nut; the adjusting bolt is rotatably connected to the first support block; the adjusting bolt and the adjusting nut cooperate with each other;

[0007] A first support hole is provided on the outer side of the hole shaping block; the first support hole cooperates with the first support block.

[0008] According to the grinding tube forming mold of this utility model, the inner side of the hole shaping block is a curved surface that matches the outer side of the inner mold sleeve; the outer side of the hole shaping block is a curved surface that matches the inner side of the outer mold sleeve.

[0009] According to the grinding tube forming mold of this utility model, a second support hole is provided on the inner side of the hole shaping block; the second support hole cooperates with the second support block; a second through hole is provided on one side of the inner mold sleeve to cooperate with the first through hole; a second support block is slidably connected to the inside of the second through hole; the outer side of the second support block is a curved surface that cooperates with the outer side of the inner mold sleeve; a fixing device is installed on the inner mold sleeve; the adjusting bolt of the fixing device is rotatably connected to the second support block.

[0010] According to the grinding tube forming mold of this utility model, the fixing frame is fixedly connected with a positioning rod.

[0011] According to the grinding tube forming mold of this utility model, the forming chamber is provided with an ejector ring for ejecting the grinding tube; the base is provided with a plurality of through holes; the through holes are evenly distributed below the ejector ring.

[0012] According to the grinding tube forming mold of this utility model, a hydraulic telescopic rod is provided at each of the through holes; the hydraulic telescopic rod is fixedly installed below the base.

[0013] This utility model provides a grinding tube forming mold, including a mold body, a fixing device, and a hole shaping block. The mold body facilitates the forming of the grinding tube, and the hole shaping block allows for easy replacement to address situations where the diameter of the discharge port in the middle of the grinding tube varies. The mold body includes a base, an outer mold sleeve, an inner mold sleeve, and a top cover. The outer mold sleeve and the inner mold sleeve are fixedly connected to the top of the base, and the space between the outer mold sleeve and the inner mold sleeve is a forming chamber, which facilitates the filling and forming of the grinding tube material. A compaction tube is fixedly connected to the bottom of the top cover and fits into the forming chamber, allowing for easy entry into the forming chamber to compact the raw material. A first through hole is provided on one side of the outer mold sleeve, and a first support block is slidably connected inside the first through hole. The inner surface of the first support block is a curved surface that mates with the inner surface of the outer mold sleeve. The first support block facilitates the support of the hole shaping block. The curved surface of the first support block mates with the inner surface of the outer mold sleeve, so that when the two overlap, a grinding tube without a middle discharge port can be formed. The fixing device includes a fixing frame, an adjusting bolt, and an adjusting nut. The fixing frame is fixedly connected to the outer mold sleeve, and the adjusting nut is fixedly connected to the fixing frame. The adjusting bolt is rotatably connected to the first support block, and the adjusting bolt and the adjusting nut cooperate. The fixing device facilitates the adjustment of the position of the support block. The outer side of the hole shaping block is provided with a first support hole, which mates with the first support block. The hole shaping block is easy to replace. Replacing the hole shaping block with a hole of different diameter facilitates the formation of discharge ports of different diameters for the grinding tube. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 Schematic diagram of Part A;

[0016] Figure 3 This is a cross-sectional view of the middle position of this utility model;

[0017] Figure 4 yes Figure 3 A schematic diagram of the structure of part B;

[0018] Figure 5 This is a schematic diagram of the structure of this utility model after removing the top cover;

[0019] Figure 6 This is a schematic diagram of the hole shaping block;

[0020] Figure 7 This is a top view of the hole shaping block;

[0021] In the diagram: 1-Outer mold sleeve, 2-Upper cover, 3-Inner mold sleeve, 4-Compacting tube, 5-Forming chamber, 6-Ejection ring, 7-Base, 8-Through hole, 9-Fixing bracket, 10-Adjusting bolt, 11-Adjusting nut, 12-Positioning rod, 13-Hole shaping block, 14-First support block, 15-Second support block, 16-First through hole, 17-Second through hole, 18-Second support hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0023] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model provides a grinding tube forming mold, which includes a mold body, a fixing device, and a hole shaping block 13. The mold body facilitates the pressing and forming of the grinding tube, and the hole shaping block 13 facilitates easy replacement, thereby enabling the formation of discharge ports of different diameters in the middle of the grinding tube, reducing the cost of mold replacement or reducing the waste of raw materials. The mold body includes a base 7, an outer mold sleeve 1, an inner mold sleeve 3, and an upper cover 2. The outer mold sleeve 1 and the inner mold sleeve 3 are fixedly connected to the upper part of the base 7, respectively. The space between the outer mold sleeve 1 and the inner mold sleeve 3 is a forming chamber 5. The forming chamber 5 between the outer mold sleeve 1 and the inner mold sleeve can facilitate the placement and pressing of the grinding tube raw material. A compaction pipe 4 is fixedly connected to the lower part of the upper cover 2 to cooperate with the forming chamber 5. The compaction pipe 4 can enter the interior of the forming chamber 5 to facilitate the compaction of the raw material. The upper cover 2 can be easily connected to an external hydraulic press.

[0024] A first through hole 16 is provided on one side of the outer mold sleeve 1. A first support block 14 is slidably connected inside the first through hole 16. The inner surface of the first support block 14 is a curved surface that matches the inner surface of the outer mold sleeve 1. The sliding connection between the first support block 14 and the outer mold sleeve 1 can prevent the first support block 14 from rotating. When the inner surface of the first support block 14 coincides with the inner surface of the outer mold sleeve 1, it is convenient to demold the pressed grinding tube, and it can also produce grinding tubes without a discharge port in the middle. The fixing device includes a fixing frame 9, an adjusting bolt 10, and an adjusting nut 11. The fixing frame 9 is fixedly connected to the outer mold sleeve 1, and the adjusting nut 11 is fixedly connected to the fixing frame 9. The adjusting bolt 10 is rotatably connected to the first support block 14. The adjusting bolt 10 and the adjusting nut 11 cooperate. The setting of the adjusting bolt 10 can adjust the position of the first support block 14, which is convenient for limiting the hole shaping block 13. The hole shaping block 13 is provided with a first support hole on its outer side. The first support hole cooperates with the first support block 14. The hole shaping block 13 can be easily replaced. When producing grinding tubes with different diameters of only the middle discharge port, only the hole shaping block 13 of different models needs to be replaced. There is no need to replace the entire mold, which reduces the mold manufacturing cost. After the middle discharge port is fired and formed, there is no need to expand or drill holes. Only trimming and beautification are needed to reduce material waste.

[0025] See Figure 3 , Figure 4 , Figure 6 , Figure 7 Furthermore, the inner surface of the hole shaping block 13 of this utility model is a curved surface that matches the outer surface of the inner mold sleeve 3, and the outer surface of the hole shaping block 13 is a curved surface that matches the inner surface of the outer mold sleeve 1. After the hole shaping block 13 is placed inside the molding cavity, it can fit tightly with the inner mold sleeve and the outer mold sleeve 1, reducing the generation of gaps and thus avoiding waste of raw materials. A second support hole 18 is provided on the inner side of the hole shaping block 13, and the second support hole 18 matches the second support block 15. A second through hole 17 that matches the first through hole 16 is provided on one side of the inner mold sleeve 3. The second support block 15 is slidably connected inside the second through hole 17. The outer surface of the second support block 15 is a curved surface that matches the outer surface of the inner mold sleeve 3. The inner mold sleeve 3 is equipped with a fixing device, and the adjusting bolt 10 of the fixing device is rotatably connected to the second support block 15. The setting of the second support block 15 can better support the hole shaping block 13.

[0026] The fixing frame 9 is fixedly connected to a positioning rod 12. The positioning rod 12 limits the adjustable distance of the adjusting bolt 10. When the positioning rod 12 abuts against the adjusting bolt 10, the curved side of the first support block 14 and the curved side of the second support block 15 coincide with the inner curved surface of the outer mold sleeve and the outer curved surface of the inner mold sleeve, respectively, reducing the difficulty for workers to judge whether the curved side of the support block coincides with the curved side of the mold sleeve. The forming chamber 5 is provided with an ejector ring 6 for ejecting the grinding tube. The base 7 is provided with several through holes 8, which are evenly distributed below the ejector ring 6. The ejector ring 6 can easily support the bottom surface of the grinding tube, thus facilitating the upward ejection of the formed grinding tube. The through holes 8 can also facilitate the connection of a hydraulic telescopic rod below the ejector ring 6. A hydraulic telescopic rod is provided at each of the through holes 8. The hydraulic telescopic rod is fixedly installed below the base 7 and can provide power for the upward or downward movement of the ejector ring 6, facilitating the ejector ring 6 to eject the formed grinding tube.

[0027] Working principle: When producing grinding tubes without a central discharge port, the two adjusting bolts 10 are turned to abut against the positioning rod 12, so that the curved sides of the first support block 14 and the second support block 15 coincide with the inner curved surface of the outer mold sleeve and the outer curved surface of the inner mold sleeve, respectively. Raw materials can then be added into the forming chamber 5. The upper cover 2 is then pressed down to complete the production of the grinding tube blank. Finally, the ejector ring 6 ejects the blank from the forming cavity. When producing grinding tubes with a central discharge port, a hole-fixing block 13 of appropriate size is placed in the middle of the forming chamber 5. The two adjusting bolts 10 are turned so that the first support block 14 and the second support block 15 can fix the hole-fixing block 13 before adding raw materials. The upper cover 2 is then pressed down to complete the production of the grinding tube blank. The two adjusting bolts 10 are turned to abut against the positioning rod 12, and the ejector ring 6 ejects the blank from the forming cavity. Finally, the hole-fixing block 13 is removed.

[0028] In summary, this utility model provides a grinding tube forming mold, including a mold body, a fixing device, and a hole shaping block. The mold body facilitates the forming of the grinding tube, and the hole shaping block allows for easy replacement to address situations where the discharge port diameter in the middle of the grinding tube varies. The mold body includes a base, an outer mold sleeve, an inner mold sleeve, and a top cover. The outer mold sleeve and the inner mold sleeve are fixedly connected to the top of the base, and the space between the outer mold sleeve and the inner mold sleeve is a forming chamber. This forming chamber facilitates the filling and forming of the grinding tube material. A compaction tube is fixedly connected to the bottom of the top cover and fits into the forming chamber. The compaction tube facilitates the compaction of the raw material within the forming chamber. A first through hole is provided on one side of the outer mold sleeve, and a first fitting is slidably connected inside the first through hole. The support block has an inner surface that mates with the inner surface of the outer mold sleeve. This first support block facilitates support for the hole-forming block. The inner surface of the first support block mates with the inner surface of the outer mold sleeve, allowing the formation of a grinding tube without a central discharge port when they overlap. The fixing device includes a fixing frame, adjusting bolts, and adjusting nuts. The fixing frame is fixedly connected to the outer mold sleeve, and the adjusting nut is also fixedly connected. The adjusting bolts are rotatably connected to the first support block, and the adjusting bolts cooperate with the adjusting nut. This fixing device allows for easy adjustment of the support block's position. A first support hole is provided on the outer side of the hole-forming block, mates with the first support block, and the hole-forming block allows for easy replacement. Replacing the hole-forming block with different diameters facilitates the formation of discharge ports of different diameters for the grinding tube.

[0029] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A grinding pipe forming mold characterized by comprising: The utility model provides a mould body, fixing device, hole shaping block, the mould body includes base, outer mould cover, inner mould cover, upper cover body, the base top respectively fixed connection outer mould cover and inner mould cover, and the space between outer mould cover and inner mould cover is the forming chamber, the upper cover body below fixed connection is in the forming chamber cooperation's compaction pipe, the outer mould cover one side sets up first through -hole, first support block cooperation's sliding connection is arranged in first through -hole, the inner side of first support block is the curved surface that cooperates with the inner side of outer mould cover, The fixing device includes a fixing frame, an adjusting bolt, and an adjusting nut; the fixing frame is fixedly connected to the outer mould cover; the fixing frame is fixedly connected to the adjusting nut; the adjusting bolt is rotatably connected to the first support block; the adjusting bolt cooperates with the adjusting nut; The hole shaping block is provided with a first support hole on the outer side; the first support hole cooperates with the first support block.

2. The abrasive tube forming mold according to claim 1, wherein The inner side of the hole shaping block is a curved surface that cooperates with the outer side of the inner mould cover; the outer side of the hole shaping block is a curved surface that cooperates with the inner side of the outer mould cover.

3. The abrasive tube forming mold of claim 1, wherein, The hole shaping block is provided with a second support hole on the inner side; the second support hole cooperates with the second support block; the inner mould cover is provided with a second through -hole that cooperates with the first through -hole on one side; the second support block is slidably connected to the second through -hole; the outer side of the second support block is a curved surface that cooperates with the outer side of the inner mould cover; the inner mould cover is provided with a fixing device; the adjusting bolt of the fixing device is rotatably connected to the second support block.

4. The abrasive tube forming mold according to claim 1 or 3, characterized by, The fixing frame is fixedly connected to a positioning rod.

5. The abrasive tube forming mold of claim 1, wherein, The forming chamber is provided with an ejection ring for ejecting the grinding pipe; the base is provided with a plurality of through holes; the through holes are uniformly distributed below the ejection ring.

6. The abrasive tube forming mold according to claim 5, wherein Hydraulic telescopic rods are arranged at the positions of the through holes; the hydraulic telescopic rods are fixedly installed below the base.

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