Casting material weighing and mixing device

Abstract

The utility model belongs to the technical field of casting material weighing and mixing, and discloses a casting material weighing and mixing device which comprises a first mixing chamber and a second mixing chamber, a first motor is fixedly connected to the top of the first mixing chamber, a first mixing roller is rotatably connected to the interior of the first mixing chamber, a feeding port is formed in the top of the first mixing chamber, and a second motor is arranged in the second mixing chamber. A feeding port is formed between the first mixing chamber and the second mixing chamber, the problem that uneven mixing is prone to occurring in the molding sand mixer can be well solved through cooperation of the first mixing chamber and the second mixing chamber, molding sand is preliminarily mixed through the first mixing roller, and the molding sand mixing efficiency is improved. And the molding sand is conveyed to the position between the second mixing roller and the third mixing roller through the feeding opening, and at the moment, through opposite rotation of the second mixing roller and the third mixing roller, the preliminarily mixed molding sand is further fully mixed under friction force generated by mutual opposite rotation of the second mixing roller and the third mixing roller.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting material weighing and mixing, in particular to a casting material weighing and mixing device. Background Art

[0002] Casting materials mainly include melting materials such as pig iron, scrap steel, and recycled materials, as well as modeling materials such as casting sand. Among them, casting sand can ensure the accuracy of casting contour and dimensional stability due to its good formability and air permeability, and avoid defects such as pores and shrinkage holes inside the casting. Casting sand also has high thermal stability and will not deform or melt during the casting process, thereby ensuring the dimensional accuracy and surface quality of the casting. It also has the advantages of easy demoulding, low cost and environmental protection, making casting sand the most used casting modeling material.

[0003] To make molding sand, it is necessary to separately add the binder raw materials into the weighing hopper using a feeder, and weigh them each time while adding the raw materials. Then, the weighed adhesive is mixed with a pneumatic mixing tank, and then transported to the binder pre-mixing storage bin through a pneumatic transmitter, and then sent to the molding sand mixer using a buffer hopper and a pneumatic sending tank to complete the preparation of molding sand. The existing molding sand mixer simply mixes the binder and sand through a single mixing roller, which is prone to uneven mixing. Therefore, a casting material weighing and mixing device is proposed to address the above problems. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a casting material weighing and mixing device, which can solve the problem that the molding sand mixer is prone to uneven mixing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a casting material weighing and mixing device, comprising a first mixing room and a second mixing room, a first motor is fixedly connected to the top of the first mixing room, a first mixing roller is rotatably connected inside the first mixing room, a feed port is provided at the top of the first mixing room, a feeding port is provided between the first mixing room and the second mixing room, a second mixing roller and a third mixing roller are rotatably connected inside the second mixing room, a transmission rod is rotatably connected to one end of the first mixing room, teeth are provided on the outside of the second mixing roller, a second motor is connected to the top of the second mixing room, and a discharge port is provided at the bottom of the second mixing room.

[0006] Preferably, the first mixing room is located on the upper side of the second mixing room and is fixedly connected to the second mixing room, and the first mixing room and the second mixing room are communicated with each other through a feeding port.

[0007] Preferably, the first motor is used to drive the first mixing roller to rotate, and the first motor and the feed port are respectively located at two ends of the first mixing room.

[0008] Preferably, the second mixing roller is located in the middle of the second mixing room, the second mixing roller is located inside the third mixing roller, and the middle part of the second mixing roller is spindle-shaped.

[0009] Preferably, the third mixing roller matches the shape of the second mixing roller, and the feed port is connected to the inside of the third mixing roller.

[0010] Preferably, the transmission rod is located outside the third mixing roller, the transmission rod is meshingly connected with the teeth, and the second motor is transmission-connected with the second mixing roller and the transmission rod.

[0011] Preferably, when the transmission rod drives the third mixing roller to rotate, the second mixing roller rotates synchronously and in a direction opposite to that of the third mixing roller.

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

[0013] The utility model can effectively solve the problem of uneven mixing in a molding sand mixer through the cooperation of the first mixing room and the second mixing room. The molding sand is preliminarily mixed by the first mixing roller and conveyed to the feeding port, so that it enters between the second mixing roller and the third mixing roller through the feeding port. At this time, the molding sand that is preliminarily mixed is further fully mixed under the friction force generated by the reverse rotation of the second mixing roller and the third mixing roller, thereby completing the preparation of the molding sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the first mixing room of the utility model;

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

[0017] Figure 4 This is a front elevation cross-sectional view of the utility model;

[0018] Figure 5 This is the molding sand mixing flow chart of the utility model.

[0019] In the figure: 1. first mixing room; 2. second mixing room; 3. first motor; 4. first mixing roller; 5. feed port; 6. feed port; 7. second mixing roller; 8. third mixing roller; 9. transmission rod; 10. teeth; 11. second motor; 12. discharge port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 5 As shown, the utility model provides a casting material weighing and mixing device, comprising a first mixing room 1 and a second mixing room 2, a first motor 3 is fixedly connected to the top of the first mixing room 1, a first mixing roller 4 is rotatably connected inside the first mixing room 1, a feed port 5 is provided on the top of the first mixing room 1, a feeding port 6 is provided between the first mixing room 1 and the second mixing room 2, a second mixing roller 7 and a third mixing roller 8 are rotatably connected inside the second mixing room 2, a transmission rod 9 is rotatably connected to one end of the first mixing room 1, teeth 10 are provided on the outside of the second mixing roller 7, a second motor 11 is connected to the top of the second mixing room 2, and a discharge port 12 is provided at the bottom of the second mixing room 2;

[0022] By starting the first motor 3 and the second motor 11, the first motor 3 drives the first mixing roller 4 to rotate, and the second motor 11 synchronously drives the second mixing roller 7 and the transmission rod 9 to rotate, so that the transmission rod 9 drives the third mixing roller 8 to rotate, and the second mixing roller 7 and the third mixing roller 8 rotate synchronously at the same time, and the second mixing roller 7 and the third mixing roller 8 rotate in opposite directions, and then the binder and sand are sent into the first mixing room 1 through the feed port 5, and the first mixing roller 4 performs preliminary mixing on them, and transports them to the feed port 6, so that they pass through the feed port 6 and enter between the second mixing roller 7 and the third mixing roller 8. At this time, the second mixing roller 7 and the third mixing roller 8 rotate in opposite directions, so that the preliminary mixed molding sand is further fully mixed under the friction force of the second mixing roller 7 and the third mixing roller 8 in the opposite direction, and the preparation of the molding sand is completed.

[0023] like Figures 2 to 4 As shown, the first mixing room 1 is located on the upper side of the second mixing room 2 and is fixedly connected to the second mixing room 2. The first mixing room 1 and the second mixing room 2 are interconnected through a feeding port 6. The first motor 3 is used to drive the first mixing roller 4 to rotate. The first motor 3 and the feeding port 5 are respectively located at both ends of the first mixing room 1. The second mixing roller 7 is located in the middle of the second mixing room 2. The second mixing roller 7 is located inside the third mixing roller 8. The middle part of the second mixing roller 7 is spindle-shaped. The third mixing roller 8 matches the shape of the second mixing roller 7. The feeding port 6 is connected to the inside of the third mixing roller 8.

[0024] By setting a first mixing room 1 and a second mixing room 2, the first mixing room 1 performs preliminary mixing of the molding sand, and then the second mixing room 2 performs secondary uniform mixing on it. The first motor 3 is used to drive the first mixing roller 4 to rotate, so that the first mixing roller 4 performs preliminary mixing of the binder and the sand, and conveys them into the second mixing room 2 through the feeding port 6. The middle part of the second mixing roller 7 is set to a spindle shape, and the third mixing roller 8 matches the shape of the second mixing roller 7. The third mixing roller 8 and the second mixing roller 7 cooperate to fully mix the molding sand.

[0025] like Figure 3 to Figure 4 As shown, the transmission rod 9 is located at the outside of the third mixing roller 8, the transmission rod 9 is meshedly connected with the teeth 10, the second motor 11 is transmission-connected with the second mixing roller 7 and the transmission rod 9, and when the transmission rod 9 drives the third mixing roller 8 to rotate, the second mixing roller 7 rotates synchronously and in the opposite direction to the third mixing roller 8; the transmission rod 9 is meshedly connected with the teeth 10, so that when the second motor 11 drives the second mixing roller 7 and the transmission rod 9 to rotate, the transmission rod 9 drives the third mixing roller 8 to rotate through the teeth 10, and at the same time, the second mixing roller 7 rotates synchronously and in the opposite direction to the third mixing roller 8, so that the molding sand is fully mixed under the friction generated by the rotation of the second mixing roller 7 and the third mixing roller 8.

[0026] The working principle and use process of the utility model are as follows: first, the first motor 3 and the second motor 11 are started, and the first motor 3 drives the first mixing roller 4 to rotate, and then the binder and sand are sent into the first mixing room 1 through the feed port 5, and the first mixing roller 4 performs preliminary mixing on them, and transports them to the feed port 6, so that the preliminary mixed molding sand passes through the feed port 6 and enters between the second mixing roller 7 and the third mixing roller 8, at this time, the second motor 11 synchronously drives the second mixing roller 7 and the transmission rod 9 to rotate, so that the transmission rod 9 drives the third mixing roller 8 to rotate, and at the same time, the second mixing roller 7 and the third mixing roller 8 rotate synchronously and the second mixing roller 7 and the third mixing roller 8 rotate in opposite directions, and the preliminary mixed molding sand is further fully mixed under the mutually reverse friction between the second mixing roller 7 and the third mixing roller 8 through the opposite rotation of the second mixing roller 7 and the third mixing roller 8, and the preparation of the molding sand is completed.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] 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 casting material weighing and mixing device, comprising a first mixing room (1) and a second mixing room (2), characterized in that: The first mixing room (1) is fixedly connected to the top of a first motor (3), the first mixing room (1) is rotatably connected to a first mixing roller (4), the first mixing room (1) is provided with a feed port (5) at the top, a feed port (6) is provided between the first mixing room (1) and the second mixing room (2), the second mixing roller (7) and the third mixing roller (8) are rotatably connected to the inside of the second mixing room (2), a transmission rod (9) is rotatably connected to one end of the first mixing room (1), the second mixing roller (7) is provided with teeth (10) on the outside, the second motor (11) is connected to the top of the second mixing room (2), and the second mixing room (2) is provided with a discharge port (12) at the bottom.

2. The casting material weighing and mixing device according to claim 1, characterized in that: The first mixing room (1) is located on the upper side of the second mixing room (2) and is fixedly connected to the second mixing room (2); the first mixing room (1) and the second mixing room (2) are connected to each other via a feeding port (6).

3. The casting material weighing and mixing device according to claim 1, characterized in that: The first motor (3) is used to drive the first mixing roller (4) to rotate, and the first motor (3) and the feed port (5) are respectively located at two ends of the first mixing room (1).

4. The casting material weighing and mixing device according to claim 1, characterized in that: The second mixing roller (7) is located in the middle of the second mixing room (2), the second mixing roller (7) is located inside the third mixing roller (8), and the middle of the second mixing roller (7) is spindle-shaped.

5. The casting material weighing and mixing device according to claim 1, characterized in that: The third mixing roller (8) matches the second mixing roller (7) in shape, and the feed port (6) is connected to the inside of the third mixing roller (8).

6. The casting material weighing and mixing device according to claim 1, characterized in that: The transmission rod (9) is located outside the third mixing roller (8), the transmission rod (9) is meshingly connected with the teeth (10), and the second motor (11) is transmission-connected with the second mixing roller (7) and the transmission rod (9).

7. The casting material weighing and mixing device according to claim 1, characterized in that: When the transmission rod (9) drives the third mixing roller (8) to rotate, the second mixing roller (7) rotates synchronously and in a direction opposite to that of the third mixing roller (8).

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