A forming die for a slurry pump housing
Patent Information
- Application Number
- CN202522497958.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-25
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-11-25
AI Technical Summary
[0003]在渣浆泵壳体铸造时也会采用覆膜砂工艺，通过覆膜砂模具制造渣浆泵壳体所需的砂芯后，将各个砂芯组装后进行浇筑作业，覆膜砂模具在通过射芯机注砂后通常通过模具内部的电加热管进行加热成型，由于电加热管外形固定，模具型腔较为复杂，型腔不同位置距离相邻的电加热管间距不同，模具型腔不同位置升温速度略有差异，且由于模具体型限制，模具内部安装的电加热管数量有限，且难以贴合模具型腔，能耗较高，为此，我们提出一种渣浆泵壳体的成型模具
[0015]与现有技术相比，本实用新型的有益效果是：本渣浆泵壳体的成型模具，具有以下好处：
Smart Images
Figure CN224737241U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slurry pump housing processing technology, specifically a molding die for a slurry pump housing. Background Technology
[0002] Coated sand is an advanced molding material made by uniformly coating the surface of raw sand particles, such as quartz sand, with a layer of solid thermoplastic phenolic resin. Its core process is thermal coating, where the resin is heated to melt and coat the sand particles, which are then cooled and crushed to obtain the finished product. Its main performance advantages lie in its significantly high strength and good collapsibility, making it the preferred material for modern casting, especially for core-making processes requiring high-quality castings.
[0003] The coated sand process is also used in the casting of slurry pump casings. After the sand cores required for the slurry pump casing are manufactured by the coated sand mold, the sand cores are assembled and then cast. After the coated sand mold is injected with sand by the core shooter, it is usually heated and formed by electric heating tubes inside the mold. Since the shape of the electric heating tubes is fixed, the mold cavity is relatively complex. The distance between the adjacent electric heating tubes at different positions in the cavity is different, and the heating rate at different positions in the mold cavity is slightly different. Moreover, due to the limitation of the mold size, the number of electric heating tubes installed inside the mold is limited, and it is difficult to fit the mold cavity, resulting in high energy consumption. Therefore, we propose a molding die for slurry pump casings. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a molding die for a slurry pump housing. By optimizing the heating method of the mold cavity, more uniform and rapid heating can be achieved while reducing energy consumption, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a molding die for a slurry pump housing, comprising a master mold, a heating mechanism one, and a heating mechanism two;
[0006] Female mold: The male mold is located on its front side;
[0007] Heating mechanism one: It includes a heating tank one, a heating wire one, and a protective frame one. The heating tank one is evenly arranged on the outer side of the mother mold cavity. The heating tank one is a stepped heating tank. The heating wire one is placed inside the heating tank one. The protective frame one is fixedly connected to the feed port of the mother mold cavity. The protective frame one is fastened to the outer side of the mother mold cavity. The rear end of the heating wire one passes through the clearance opening of the end cover of the protective frame one. The input end of the heating wire one is electrically connected to the output end of the core shooting machine controller.
[0008] Heating mechanism two: It includes heating groove three and protective frame two. Heating groove three is evenly arranged on the outer side of the male mold cavity. Heating groove three is a stepped heating groove. Heating wire three is placed inside each heating groove three. Protective frame two is fixedly connected to the inner wall of the front side of the male mold. Protective frame two is inserted into the inner side of the outer side of the male mold cavity. The input end of heating wire three is electrically connected to the output end of the core shooting machine controller. By optimizing the heating method of the mold cavity, more uniform and rapid heating is achieved.
[0009] Furthermore, the heating mechanism also includes a fixed column and a patch thermocouple. The fixed columns are evenly arranged on the outer side of the mother mold cavity. A patch thermocouple is fixedly connected to the rear side of each fixed column. The patch thermocouple is bidirectionally electrically connected to the core shooting machine controller to detect the temperature of the mother mold.
[0010] Furthermore, the heating mechanism also includes a heating wire and an arc-shaped baffle. A heating groove is provided on the outer side of the outlet of the mother mold cavity. The heating groove is a straight heating groove. The heating wire is placed inside the heating groove. An arc-shaped baffle is fixedly connected to the outer side of the mother mold cavity. The arc-shaped plate of the arc-shaped baffle is located behind the heating groove. The input end of the heating wire is electrically connected to the output end of the core shooting machine controller to heat the sand core outlet position.
[0011] Furthermore, the heating mechanism 2 also includes a fixed column 2 and a patch thermocouple 2. The fixed columns 2 are evenly arranged on the outer side of the male mold cavity. The front end of the fixed column 2 passes through the adjacent clearance groove of the protective frame 2. The front end of each fixed column 2 is fixedly connected to a patch thermocouple 2. The patch thermocouple 2 is bidirectionally electrically connected to the core shooting machine controller to detect the temperature of the male mold cavity.
[0012] Furthermore, it also includes an exhaust mechanism, which includes an exhaust groove, a venting steel, and a sealing seat. The exhaust grooves are respectively located on the upper right end and the lower left and right sides of the inner wall of the mold with the cavity. Venting steel is placed inside the exhaust grooves, and the rear end of the exhaust grooves is connected to the sealing seat by bolts to realize exhaust.
[0013] Furthermore, the exhaust mechanism also includes push rods, which are symmetrically arranged on the rear side wall of the sealing seat. The front ends of the two push rods located in the same sealing seat are in contact with the rear side of the adjacent vent steel on the front side, pressing the vent steel.
[0014] Furthermore, the exhaust mechanism also includes quick connectors, which are threaded onto the right side of the sealing seat and connected to an external air pump.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The molding die for the slurry pump housing has the following advantages:
[0016] When processing the sand core used for the slurry pump housing, the shapes of heating tank one and heating tank three are respectively processed according to the outer shape of the mother mold cavity and the male mold cavity, so that the distance between each position of heating wire one and heating wire three and the sand core is as consistent as possible. In addition, heating wire one and heating wire three both radiate outward from the middle of the sand core in cross section. Heating wire two heats the discharge port of the sand core. The sand core has more heating points and is closer to the sand core, which makes the heating process of the mother mold cavity and the male mold cavity more rapid and uniform. At the same time, the closer the heating points are to the sand core, the less energy is consumed, reducing the heating cost of the sand core. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic cross-sectional view of the mother mold after explosion.
[0019] Figure 3 This is an enlarged structural diagram of point A in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the protective frame of this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the second heating tank and the second heating wire of this utility model;
[0022] Figure 6 This is a schematic diagram of the structure of the mother model cavity of this utility model;
[0023] Figure 7 This is an exploded structural diagram of the public mold of this utility model;
[0024] Figure 8 This is a schematic diagram of the structure of the public mold cavity of this utility model;
[0025] Figure 9 This is a structural schematic diagram of the second protective frame of this utility model.
[0026] In the diagram: 1. Female mold, 2. Male mold, 3. Heating mechanism I, 31. Heating groove I, 32. Heating wire I, 33. Protective frame I, 34. Fixing post I, 35. Surface-mount thermocouple I, 36. Heating wire II, 37. Arc-shaped baffle, 4. Heating mechanism II, 41. Heating groove III, 42. Protective frame II, 43. Fixing post II, 44. Surface-mount thermocouple II, 5. Exhaust mechanism, 51. Exhaust groove, 52. Ventilated steel, 53. Top rod, 54. Sealing seat, 55. Quick connector, 6. Heating groove II. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figure 1-9 This embodiment provides a technical solution: a molding die for a slurry pump housing, including a master mold 1, a heating mechanism 1 3 and a heating mechanism 2 4;
[0029] Female mold 1: Male mold 2 is provided on its front side;
[0030] Heating mechanism 3 includes a heating groove 31, heating wires 32, and a protective frame 33. The heating grooves 31 are evenly distributed on the outer side of the cavity of the female mold 1. The heating grooves 31 are stepped heating grooves. Heating wires 32 are placed inside the heating grooves 31. The protective frame 33 is fixedly connected to the inlet of the cavity of the female mold 1. The protective frame 33 is fastened to the outer side of the cavity of the female mold 1. The rear ends of the heating wires 32 pass through the clearance openings of the end caps of the protective frame 33. The input ends of the heating wires 32 are electrically connected to the output end of the core shooting machine controller. The heating mechanism 3 also includes a fixing post 34 and a patch thermocouple 35. The heating mechanism 3 also includes a heating wire 36 and an arc-shaped baffle 37. The heating groove 6 is a straight heating groove with a heating wire 36 placed inside the heating groove 6. The arc-shaped baffle 37 is located behind the heating groove 6. The input end of the heating wire 36 is electrically connected to the output end of the core shooting machine controller.
[0031] Heating mechanism 2 4: It includes heating groove 3 41 and protective frame 2 42. Heating groove 3 41 is evenly arranged on the outer side of the cavity of male mold 2. Heating groove 3 41 is a stepped heating groove. Heating wire 3 is placed inside each heating groove 3 41. Protective frame 2 42 is fixedly connected to the inner wall of the front side of male mold 2. Protective frame 2 42 is inserted into the inner side of the outer side of the cavity of male mold 2. The input end of heating wire 3 is electrically connected to the output end of the core shooting machine controller. Heating mechanism 2 4 also includes fixing post 2 43 and patch thermocouple 2 44. Fixing post 2 43 is evenly arranged on the male mold. On the outer side of cavity 2, the front ends of fixed post 2 43 pass through the adjacent clearance grooves of protective frame 2 42. Each fixed post 2 43 has a fixedly connected patch thermocouple 2 44. Patches thermocouple 2 44 are bidirectionally electrically connected to the core shooter controller. After sand injection, the core shooter controller activates heating wire 1 32, heating wire 2 36, and heating wire 3. The inlet and outlet of cavity 1 of the female mold and cavity 2 of the male mold refer to the corresponding positions of the inlet and outlet of the slurry pump housing cast using the sand core formed by this molding die. Heating tank 1 31 and heating tank... The shapes of heating wires 32 and 33 are all formed to fit the cavities of the female mold 1 and male mold 2, ensuring that the distance between heating wires 32 and 33 and the sand core is as consistent as possible. Both heating wires 32 and 33 radiate outwards from the center of the sand core in cross-section. Heating wire 36 heats the outlet of the sand core. The end caps of the protective frame 33 are fixedly connected to a ring and a crescent plate via support pillars. The diameter of the crescent plate is larger than the diameter of the ring. The ring and the crescent plate are fitted to adjacent planes on the outer side of the female mold 1 cavity to prevent heating wire 32 from detaching from heating groove 31. The heating process of cavity 1 and cavity 2 of the male mold is more rapid and uniform. Fixed pillar 1 34 and female mold 1 are integrated, and fixed pillar 2 43 and male mold 2 are integrated. Fixed pillar 1 34 and fixed pillar 2 43 are heated simultaneously. Multiple patch thermocouples 1 35 and patch thermocouple 2 44 detect the temperature of the corresponding fixed pillar 1 34 and fixed pillar 2 43 respectively. The average temperature detected by patch thermocouple 1 35 is the temperature of cavity 1 of female mold, and the average temperature detected by patch thermocouple 2 44 is the temperature of cavity 2 of male mold, realizing temperature detection during the sand core heating process.
[0032] The system also includes an exhaust mechanism 5, which comprises an exhaust groove 51, a venting steel 52, and a sealing seat 54. The exhaust grooves 51 are respectively located on the upper right end and the lower left and right sides of the inner wall of the cavity of the female mold 1. Venting steel 52 is placed inside each exhaust groove 51, and the rear end of each exhaust groove 51 is bolted to a sealing seat 54. The exhaust mechanism 5 also includes push rods 53, which are symmetrically arranged on the rear side wall of the sealing seat 54. The front ends of the two push rods 53 located on the same sealing seat 54 are in contact with the rear side of the adjacent venting steel 52 on the front side. The exhaust mechanism 5 also includes quick connectors 55, which are threaded to the right side of the sealing seat 54. When the female mold 1 and the male mold 2 are closed, the sand inlet of the cavity of the female mold 1 is aligned with the sand shooting device of the core shooting machine. The sand outlet and sealing seat 54 are connected to an external air pump via quick connector 55. When manufacturing the sand core, the female mold 1 and male mold 2 are driven to close by the core shooting machine. Then, the sand shooting device of the core shooting machine descends and locks onto the whole formed by the female mold 1 and male mold 2. The sand shooting device of the core shooting machine sends in coated sand through compressed air. At the same time, the external air pump is started to evacuate the cavity formed by the whole formed by the female mold 1 and male mold 2. The three venting steels 52 are all in negative pressure position. The venting steels 52 are set in the plane position of the cavity of the female mold 1, and the three venting steels 52 are far away from the sand inlet of the cavity of the female mold 1, so as to facilitate the filling of the cavity formed by the whole formed by the female mold 1 and male mold 2 with coated sand. At the same time, the push rod 53 presses the venting steels 52 respectively. By removing the bolts fixing the sealing seat 54, the sealing seat 54 and the venting steels 52 can be removed.
[0033] The working principle of the molding die for a slurry pump housing provided by this utility model is as follows: The female mold 1 and male mold 2 are respectively installed on a core shooter. When the female mold 1 and male mold 2 are closed, the sand inlet of the cavity of the female mold 1 is aligned with the sand outlet of the sand shooting device of the core shooter. The sealing seats 54 are all connected to an external air pump via quick connectors 55. When manufacturing the sand core, the female mold 1 and male mold 2 are driven to close by the core shooter. Subsequently, the sand shooting device of the core shooter descends and engages with the entire assembly formed by the female mold 1 and male mold 2. The sand shooting device of the core shooter sends in coated sand through compressed air. At the same time, the external air pump starts, creating an air gap between the entire assembly formed by the female mold 1 and male mold 2. The cavity is evacuated, and the three venting steels 52 are positioned under negative pressure. These venting steels 52 are located on the plane of the cavity of the female mold 1, and are far from the sand inlet of the female mold 1 cavity. This facilitates the filling of the cavity formed by the coated sand and the integral structure of the female mold 1 and the male mold 2. Simultaneously, the ejector rods 53 tighten the venting steels 52. By removing the bolts securing the sealing seat 54, the sealing seat 54 and the venting steels 52 can be removed. After sand injection, the core shooting machine controller activates heating wires 1 (32), 2 (36), and 3 (3). The inlet and outlet of both the female mold 1 cavity and the male mold 2 cavity refer to the sand core formed using this molding die. The corresponding positions of the inlet and outlet of the cast slurry pump casing, and the shapes of heating tank 1 (31) and heating tank 3 (41) are all machined to fit the cavities of the female mold 1 and male mold 2, ensuring that the spacing between heating wire 1 (32) and heating wire 3 (3) and the sand core is as consistent as possible. Furthermore, heating wire 1 (32) and heating wire 3 (3) both radiate outwards from the center of the sand core in cross-section. Heating wire 2 (36) heats the outlet position of the sand core. The end caps of the protective frame 1 (33) are fixedly connected to a ring and a crescent plate via support columns. The diameter of the crescent plate is larger than the diameter of the ring. The ring and the crescent plate fit against adjacent planes on the outer side of the female mold 1 cavity, avoiding the need for heating... Hot wire 32 detaches from heating tank 31, making the heating process of the female mold 1 cavity and the male mold 2 cavity more rapid and uniform. Fixed column 34 is integrated with the female mold 1, and fixed column 43 is integrated with the male mold 2. Fixed column 34 and fixed column 43 heat up simultaneously. Multiple surface-mount thermocouples 35 and 44 detect the temperature of the corresponding fixed column 34 and fixed column 43. The average temperature detected by surface-mount thermocouple 35 is the temperature of the female mold 1 cavity, and the average temperature detected by surface-mount thermocouple 44 is the temperature of the male mold 2 cavity, thus realizing temperature detection during the sand core heating process.
[0034] It is worth noting that the patch thermocouple 35 and patch thermocouple 44 disclosed in the above embodiments can both be K-type patch thermocouples. Heating wire 32, heating wire 36 and heating wire 3 can be freely configured according to the actual application scenario. The core shooting machine controller controls the operation of patch thermocouple 35, patch thermocouple 44, heating wire 32, heating wire 36 and heating wire 3 using methods commonly used in the prior art.
[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A forming die for a slurry pump housing, characterized by: It includes a master mold (1), a heating mechanism one (3) and a heating mechanism two (4); Female mold (1): The male mold (2) is provided on its front side; Heating mechanism 1 (3): It includes heating tank 1 (31), heating wire 1 (32) and protective frame 1 (33). The heating tank 1 (31) is evenly arranged on the outer side of the cavity of the mother mold (1). The heating tank 1 (31) is a stepped heating tank. The heating wire 1 (32) is placed inside the heating tank 1 (31). The protective frame 1 (33) is fixedly connected to the feed port of the cavity of the mother mold (1). The protective frame 1 (33) is fastened to the outer side of the cavity of the mother mold (1). The rear end of the heating wire 1 (32) passes through the clearance opening of the end cap of the protective frame 1 (33). The input end of the heating wire 1 (32) is electrically connected to the output end of the core shooting machine controller. Heating mechanism two (4): It includes heating groove three (41) and protective frame two (42). The heating groove three (41) is evenly arranged on the outer side of the cavity of the male mold (2). The heating groove three (41) is a stepped heating groove. Heating wire three is placed inside the heating groove three (41). The protective frame two (42) is fixedly connected to the inner wall of the front side of the male mold (2). The protective frame two (42) is inserted into the inner side of the outer side of the cavity of the male mold (2). The input end of the heating wire three is electrically connected to the output end of the core shooting machine controller.
2. A forming mold for a slurry pump housing according to claim 1, characterized in that: The heating mechanism (3) further includes a fixed column (34) and a patch thermocouple (35). The fixed column (34) is evenly arranged on the outer side of the cavity of the mother mold (1). The patch thermocouple (35) is fixedly connected to the rear side of the fixed column (34). The patch thermocouple (35) is bidirectionally electrically connected to the core shooting machine controller.
3. A molding die for a slurry pump housing according to claim 1, characterized in that: The heating mechanism (3) further includes a heating wire (36) and an arc-shaped baffle (37). The outer side of the discharge port of the cavity of the mother mold (1) is provided with a heating groove (6). The heating groove (6) is a straight heating groove. The heating wire (36) is placed inside the heating groove (6). The arc-shaped baffle (37) is fixedly connected to the outer side of the cavity of the mother mold (1). The arc plate of the arc baffle (37) is located on the rear side of the heating groove (6). The input end of the heating wire (36) is electrically connected to the output end of the core shooting machine controller.
4. A molding die for a slurry pump housing according to claim 1, characterized in that: The second heating mechanism (4) further includes a second fixed column (43) and a second patch thermocouple (44). The second fixed column (43) is evenly arranged on the outer side of the cavity of the male mold (2). The front end of the second fixed column (43) passes through the adjacent clearance groove of the second protective frame (42). The front end of the second fixed column (43) is fixedly connected to the second patch thermocouple (44). The second patch thermocouple (44) is bidirectionally electrically connected to the core shooting machine controller.
5. A molding die for a slurry pump housing according to claim 1, characterized in that: It also includes an exhaust mechanism (5), which includes an exhaust groove (51), a breathable steel (52) and a sealing seat (54). The exhaust groove (51) is respectively located on the upper right end and the lower left and right sides of the inner wall of the cavity of the mother mold (1). The inside of the exhaust groove (51) is filled with a breathable steel (52), and the rear end of the exhaust groove (51) is connected to a sealing seat (54) by bolts.
6. A forming mold for a slurry pump housing according to claim 5, characterized in that: The exhaust mechanism (5) also includes push rods (53), which are symmetrically arranged on the rear side wall of the sealing seat (54). The front ends of the two push rods (53) located in the same sealing seat (54) are in contact with the rear side of the adjacent ventilated steel (52).
7. The molding die for a slurry pump housing according to claim 5, characterized in that: The exhaust mechanism (5) also includes a quick connector (55), which is threaded to the right side of the sealing seat (54).