Outlet structure of self-hardening resin sand mixer
By setting up a heating and pressurization mechanism at the outlet of the sand mixer, the problem of slow hardening of self-hardening resin sand in low temperature environments is solved, and the normal hardening and rapid discharge of self-hardening resin sand is achieved to reduce splashing.
Patent Information
- Application Number
- CN202421852815.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In cold areas, the indoor temperature of the self-hardening resin sand mixer is too low, resulting in the slowing rate of the self-hardening resin sand hardening or unable to harden. The existing equipment lacks heating function and is inconvenient to use.
A heating mechanism is set up at the outlet of the sand mixer, and the self-hardened resin sand is heated through a heating plate, and the hot air of the pressurized mechanism assists the heating, combined with the anti-splash mechanism to prevent the sand from splashing, and improve the discharge speed and hardening efficiency.
Effectively prevent the problem of excessively low-temperature hardening of self-hardening resin sand, increase the discharge speed and reduce splashing, and ensure that the resin sand hardens normally in a low-temperature environment.
Smart Images
Figure CN223056650U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand mixers, and particularly relates to an outlet structure of a self-hardening resin sand mixer. Background Technique
[0002] A self-hardening resin sand mixer is a sand mixing machine that can operate continuously and is used in foundry enterprises to mix resin molding sand and core sand. This machine continuously mixes liquid curing agent and liquid resin to produce self-hardening resin sand for molding or core making. Resin sand mixers can be divided into double-arm resin sand mixers and single-arm resin sand mixers. Currently, double-arm resin sand mixers are more commonly used in China. Its characteristics are that it can be composed of two-stage freely rotating agitators. The first stage is a conveying agitator for conveying raw sand, and the second stage is a high-speed sand mixing agitator for high-speed sand mixing. Liquid resin and curing agent are both sprayed into the second-stage agitator. The curing agent is sprayed first, and the resin is sprayed after a certain time lag. Commonly used self-hardening resin sands include: furan resin self-hardening sand, alkaline phenolic resin self-hardening sand, and urethane resin self-hardening sand.
[0003] For example, during the use of furan resin self-hardening sand, in order to make the resin gradually undergo a cross-linking reaction under the catalysis of the curing agent and harden itself, the sand temperature needs to be maintained at -5°C to 40°C. However, in winter in cold regions, the indoor temperature is much lower than -5°C, which will cause the temperature of furan resin self-hardening sand to be too low, resulting in a slower hardening speed and even possible failure to harden. And there is no heating function in the existing self-hardening resin sand mixer, which causes certain inconvenience in use. Content of the Utility Model
[0004] The utility model provides an outlet structure of a self-hardening resin sand mixer to solve the problems raised in the above background technique.
[0005] To solve the above technical problems, the technical solution adopted by the utility model is:
[0006] An outlet structure of a self-hardening resin sand mixer includes a large arm of the sand mixer. At the bottom of one end of the large arm of the sand mixer, a self-hardening resin sand mixer is provided. At the bottom of one end of the self-hardening resin sand mixer, a heating mechanism is threadedly connected. At the top of the self-hardening resin sand mixer, a pressurizing mechanism is fixedly connected. At the bottom of the heating mechanism, a splash-proof mechanism is provided.
[0007] The further improvement of the technical solution of the utility model lies in that: the heating mechanism includes a connection head, the top of the connection head is threadedly connected to the bottom of one end of the self-hardening resin sand mixer, and the bottom of the connection head is fixedly connected with a heating chamber.
[0008] The further improvement of the technical solution of the utility model lies in that: a control panel is fixedly connected to the front of the heating chamber, a heating plate is fixedly connected to the inner wall of the heating chamber, and the inner cavities of the heating chamber, the connection head, and the self-hardening resin sand mixer are communicated.
[0009] A further improvement of the technical solution of the present utility model lies in that: the pressurizing mechanism includes an installation box, the bottom of the installation box is fixedly connected to the top of the self-hardening resin sand mixer, the inner wall of the installation box is fixedly connected with a fixing plate, and one side of the fixing plate is fixedly connected with a motor.
[0010] A further improvement of the technical solution of the present utility model lies in that: the surface of one end of the motor shaft is fixedly connected with a wind blade, and the inner wall of the installation box cavity far from the fixing plate end is fixedly connected with a heating wire.
[0011] A further improvement of the technical solution of the present utility model lies in that: one end of the installation box is fixedly connected with an air delivery pipe, one end of the air delivery pipe is fixedly connected with a circulation pipe, the circulation pipe is made of aluminum alloy, one end of the circulation pipe is fixedly connected with a pressurizing pipe, and the surface of the circulation pipe is fixedly connected with the inside of the heating chamber.
[0012] A further improvement of the technical solution of the present utility model lies in that: the anti-splashing mechanism includes a discharge port, the top of the discharge port is fixedly connected to the bottom of the heating chamber, the inside of the discharge port is communicated with the inside of the heating chamber, the surface of the discharge port is fixedly connected with a fixing sleeve, an installation groove is opened inside the fixing sleeve, and the inner wall of the discharge port is fixedly connected with one end of the pressurizing pipe.
[0013] A further improvement of the technical solution of the present utility model lies in that: an anti-splashing bag is inserted into the installation groove, the surface of the fixing sleeve is threadedly connected with a fixing screw, one end of the fixing screw abuts against the surface of the anti-splashing bag, and the anti-splashing bag is made of a woven bag.
[0014] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:
[0015] The present utility model provides an outlet structure for a self-hardening resin sand mixer. When the indoor temperature is too low through the setting of the heating mechanism, when the self-hardening resin sand passes through the heating chamber, the self-hardening resin sand is heated by the heating plate to prevent the self-hardening resin sand from not hardening due to too low temperature. At the same time, the pressurizing mechanism adopts the pressurizing method of hot air. While the hot air pressurizes the inside of the discharge port to make the discharge speed faster, when the hot air flows in the circulation pipe, it can also assist in heating the self-hardening resin sand to make its heating effect better. The setting of the anti-splashing mechanism can block the self-hardening resin sand through the anti-splashing bag, and the blown air flow can flow out through the anti-splashing bag, reducing the splashing range of the self-hardening resin sand. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is the front view structural schematic diagram of the present utility model;
[0017] Figure 2Schematic diagram of the decomposition structure of the pressurizing mechanism of the present utility model;
[0018] Figure 3 Schematic diagram of the decomposition structure of the present utility model;
[0019] Figure 4 Schematic diagram of the decomposition bottom view structure of the present utility model.
[0020] In the figure: 1. Large arm of the sand mixer; 2. Self-hardening resin sand mixer; 3. Heating mechanism; 31. Connector; 32. Heating chamber; 33. Control panel; 34. Heating plate; 4. Pressurizing mechanism; 41. Installation box; 42. Fixed plate; 43. Motor; 44. Blower; 45. Heating wire; 46. Air delivery pipe; 47. Circulation pipe; 48. Pressurizing pipe; 5. Anti-splash mechanism; 51. Discharge port; 52. Fixed sleeve; 53. Installation groove; 54. Anti-splash bag; 55. Fixing screw. Specific embodiments
[0021] The following further describes the present utility model in detail with reference to embodiments:
[0022] Embodiment 1
[0023] As Figures 1-4 shown, the present utility model provides an outlet structure of a self-hardening resin sand mixer, including a large arm 1 of the sand mixer. At the bottom of one end of the large arm 1 of the sand mixer, there is a self-hardening resin sand mixer 2. At the bottom of one end of the self-hardening resin sand mixer 2, a heating mechanism 3 is threadedly connected. At the top of the self-hardening resin sand mixer 2, a pressurizing mechanism 4 is fixedly connected. At the bottom of the heating mechanism 3, there is an anti-splash mechanism 5. The heating mechanism 3 includes a connector 31. The top of the connector 31 is threadedly connected to the bottom of one end of the self-hardening resin sand mixer 2. The bottom of the connector 31 is fixedly connected to a heating chamber 32. On the front of the heating chamber 32, a control panel 33 is fixedly connected. On the inner wall of the heating chamber 32, a heating plate 34 is fixedly connected. The inner cavities of the heating chamber 32, the connector 31, and the self-hardening resin sand mixer 2 are communicated.
[0024] In this embodiment, after adjusting the position of the discharge port 51 through the large arm 1 of the sand mixer, the self-hardening resin sand is mixed by the self-hardening resin sand mixer 2. When discharging, the self-hardening resin sand enters the heating chamber 32 from the connector 31, and after flowing along the heating chamber 32 into the discharge port 51, it flows out along the anti-splash bag 54.
[0025] Embodiment 2
[0026] As Figures 1-4As shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the pressurizing mechanism 4 includes an installation box 41. The bottom of the installation box 41 is fixedly connected to the top of the self-hardening resin sand mixer 2. The inner wall of the installation box 41 is fixedly connected to a fixing plate 42. One side of the fixing plate 42 is fixedly connected to a motor 43. The surface of one end of the rotating shaft of the motor 43 is fixedly connected to a wind blade 44. The inner wall of one end of the inner cavity of the installation box 41 away from the fixing plate 42 is fixedly connected to a heating wire 45. One end of the installation box 41 is fixedly connected to an air delivery pipe 46. One end of the air delivery pipe 46 is fixedly connected to a circulation pipe 47. The circulation pipe 47 is made of aluminum alloy. One end of the circulation pipe 47 is fixedly connected to a pressurizing pipe 48. The surface of the circulation pipe 47 is fixedly connected to the inside of the heating chamber 32.
[0027] In this embodiment, when it is necessary to accelerate the discharging speed, under the action of the motor 43, external air enters the air delivery pipe 46 from the installation box 41, flows along the circulation pipe 47, enters the pressurizing pipe 48, and then enters the discharging port 51, pressurizing the inside of the discharging port 51, so that the air flow drives the self-hardening resin sand to quickly discharge from the discharging port 51, accelerating the discharging speed. At the same time, the setting of the anti-splash bag 54 can block the self-hardening resin sand while allowing the air flow to pass through, thereby reducing the splashing area.
[0028] Embodiment 3
[0029] As Figures 1-4 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the anti-splash mechanism 5 includes a discharging port 51. The top of the discharging port 51 is fixedly connected to the bottom of the heating chamber 32. The inside of the discharging port 51 is communicated with the inside of the heating chamber 32. The surface of the discharging port 51 is fixedly connected to a fixing sleeve 52. An installation groove 53 is formed inside the fixing sleeve 52. One end of the inner wall of the discharging port 51 is fixedly connected to the pressurizing pipe 48. An anti-splash bag 54 is inserted into the installation groove 53. The surface of the fixing sleeve 52 is threadedly connected to a fixing screw 55. One end of the fixing screw 55 abuts against the surface of the anti-splash bag 54. The anti-splash bag 54 is made of a woven bag.
[0030] In this embodiment, when the indoor temperature is too low, the heating plate 34 is started through the control panel 33 to heat the self-hardening resin sand in the heating chamber 32, and the heating wire 45 is used to heat the pressurized air. When the hot air passes through the circulation pipe 47, the good thermal conductivity of the aluminum alloy is used to assist in heating the self-hardening resin sand, preventing the self-hardening resin sand from being unable to harden due to too low a temperature.
[0031] Next, the working principle of the outlet structure of the self-hardening resin sand mixer will be specifically described.
[0032] As Figures 1-4As shown, during use, after adjusting the position of the discharge port 51 through the large arm 1 of the sand mixer, the self-hardening resin sand is mixed by the self-hardening resin sand mixer 2. When discharging, the self-hardening resin sand enters the heating chamber 32 from the connector 31, flows along the heating chamber 32 into the discharge port 51, and then flows out along the anti-splash bag 54. When it is necessary to accelerate the discharge speed, under the action of the motor 43, outside air enters the air delivery pipe 46 from the installation box 41, flows along the circulation pipe 47, enters the pressurizing pipe 48, and then enters the discharge port 51 to pressurize the inside of the discharge port 51, so that the air flow drives the self-hardening resin sand to quickly discharge from the discharge port 51, accelerating the discharge speed. At the same time, the setting of the anti-splash bag 54 can block the self-hardening resin sand while allowing the air flow to pass through, thereby reducing the splashing area. When the indoor temperature is too low, the heating plate 34 is started through the control panel 33 to heat the self-hardening resin sand in the heating chamber 32, and the pressurized air is heated by the heating wire 45, so that when the hot air passes through the circulation pipe 47, with the good heat conductivity of the aluminum alloy, the self-hardening resin sand is assisted in heating to prevent the self-hardening resin sand from not hardening due to too low temperature.
[0033] The above has generally described the present utility model in detail, but based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.
Claims
1. An outlet structure of a self-hardening resin sand mixer, including a large arm (1) of the mixer, characterized in that: At the bottom of one end of the large arm (1) of the sand mixer, there is a self-hardening resin sand mixer (2). At the bottom of one end of the self-hardening resin sand mixer (2), a heating mechanism (3) is threadedly connected. At the top of the self-hardening resin sand mixer (2), a pressurizing mechanism (4) is fixedly connected. At the bottom of the heating mechanism (3), a splash-proof mechanism (5) is provided. The heating mechanism (3) includes a connection head (31). The top of the connection head (31) is threadedly connected to the bottom of one end of the self-hardening resin sand mixer (2). The bottom of the connection head (31) is fixedly connected to a heating chamber (32).
2. The outlet structure of a self-hardening resin sand mixer according to claim 1, characterized in that: A control panel (33) is fixedly connected to the front of the heating chamber (32). A heating plate (34) is fixedly connected to the inner wall of the heating chamber (32). The inner cavities of the heating chamber (32), the connection head (31), and the self-hardening resin sand mixer (2) are communicated.
3. The outlet structure of a self-hardening resin sand mixer according to claim 1, characterized in that: The pressurizing mechanism (4) includes an installation box (41). The bottom of the installation box (41) is fixedly connected to the top of the self-hardening resin sand mixer (2). A fixing plate (42) is fixedly connected to the inner wall of the installation box (41). A motor (43) is fixedly connected to one side of the fixing plate (42).
4. The outlet structure of a self-hardening resin sand mixer according to claim 3, characterized in that: A wind blade (44) is fixedly connected to the surface of one end of the rotating shaft of the motor (43). An electric heating wire (45) is fixedly connected to the inner wall of one end of the installation box (41) away from the fixing plate (42).
5. The outlet structure of a self-hardening resin sand mixer according to claim 3, characterized in that: One end of the installation box (41) is fixedly connected to an air delivery pipe (46). One end of the air delivery pipe (46) is fixedly connected to a circulation pipe (47). The circulation pipe (47) is made of aluminum alloy. One end of the circulation pipe (47) is fixedly connected to a pressurizing pipe (48). The surface of the circulation pipe (47) is fixedly connected to the inside of the heating chamber (32).
6. The outlet structure of a self-hardening resin sand mixer according to claim 1, characterized in that: The splash-proof mechanism (5) includes a discharge port (51). The top of the discharge port (51) is fixedly connected to the bottom of the heating chamber (32). The inside of the discharge port (51) is communicated with the inside of the heating chamber (32). A fixing sleeve (52) is fixedly connected to the surface of the discharge port (51). An installation groove (53) is formed inside the fixing sleeve (52). One end of the inner wall of the discharge port (51) is fixedly connected to the pressurizing pipe (48).
7. The outlet structure of a self-hardening resin sand mixer according to claim 6, characterized in that: A splash-proof bag (54) is inserted into the installation groove (53). A fixing screw (55) is threadedly connected to the surface of the fixing sleeve (52). One end of the fixing screw (55) abuts against the surface of the splash-proof bag (54). The splash-proof bag (54) is made of a woven bag.