Quantitative sand adding mechanism of molding machine

Abstract

The utility model relates to a quantitative sand feeding mechanism of a molding machine, which belongs to the technical field of sand feeding of the molding machine and comprises a support frame, a first sand storage cylinder and a second sand storage cylinder, the first sand storage cylinder and the second sand storage cylinder are arranged on the left side and the right side of the support frame, and two sand feeding pipes are mounted on opposite sides of the bottoms of the first sand storage cylinder and the second sand storage cylinder and used for feeding sand circularly in a reciprocating manner. A plurality of communicated sand adding components are detachably mounted on the lower sides of the middles of the two sand conveying pipes, the sand adding components are correspondingly arranged on the upper sides of sand box feeding ports of the molding machines, and sand in the first sand storage cylinder and the second sand storage cylinder is conveyed in a reciprocating mode through the two sand conveying pipes; sand can directly fall into the sand adding components to be equivalently collected in the conveying process, and then is fed into the sand boxes of the molding machines to be added, so that the sand can be added into the sand boxes at the same time, the labor force of manual metering is greatly reduced, and the sand adding efficiency is improved; and the sand adding part can be detached and replaced, so that later maintenance and replacement are facilitated.

Description

Technical Field

[0001] The utility model relates to a quantitative sand adding mechanism for a molding machine, belonging to the technical field of sand adding for molding machines. Background Art

[0002] The molding machine is a casting equipment used to make sand molds. Commonly used ones include boxless shot-pressing molding machines and horizontal parting boxless shot-pressing molding machines. The boxless shot-pressing molding machine does not use a sand box for molding. The molding sand is directly injected into the molding chamber with a template. The sand mold has high dimensional accuracy, there are cavities on both sides of the sand box, and the productivity is high, but it is difficult to set the core, and strict requirements are placed on the quality of the molding sand. The main function of the molding machine is to fill sand, fill the loose sand into the sand box, and compact the molding sand. The loose molding sand in the sand box is compacted by different methods such as vibration, compaction, vibration pressure, and shot pressure of the pressing equipment, so that the sand mold will not be loose during transportation and pouring, and has a certain strength. The molding machine is divided into vibration-compression molding machine and vibration-compacting molding machine. The molding machine needs to use a sand adding mechanism in the sand adding process. However, the existing sand adding mechanism requires workers to manually weigh and add sand, and can only add sand to the sand box of the molding machine individually, and cannot add sand to multiple different sand boxes at the same time. The work efficiency is low and the labor intensity is high. Therefore, it is necessary to propose a quantitative sand adding mechanism for the molding machine. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention aims to provide a quantitative sand adding mechanism for a molding machine to solve the existing problems.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: a quantitative sand adding mechanism of a molding machine, comprising a support frame and a first sand storage barrel and a second sand storage barrel arranged on the left and right sides of the support frame, two sand feeding pipes are installed on the opposite sides of the bottom of the first sand storage barrel and the second sand storage barrel for reciprocating sand feeding, and a plurality of interconnected sand adding components are detachably installed on the lower side of the middle part of the two sand feeding pipes, and each sand adding component is correspondingly arranged on the upper side of the sand box feed port of each molding machine.

[0005] Furthermore, a plurality of sand outlet openings are provided on the lower side of the sand delivery pipe, and the middle portion of the sand outlet openings is communicated with the upper side of the sand adding component.

[0006] Furthermore, the interior of the sand adding component is configured as a cylindrical cavity, a rotating shaft is rotatably installed in the middle of the cylindrical cavity, and a plurality of dividing plates are installed on the rotating shaft. Each of the dividing plates is distributed in a circular array with the rotating shaft as the center, and every two adjacent dividing plates form equal portions of the sand cavity.

[0007] Furthermore, a sand adding port is provided on the lower side of the sand adding component, the outward opening of the sand cavity is larger than the width of the sand adding port and the sand discharging port, and the dividing plate can be adapted to fit on the inner wall of the cylindrical cavity.

[0008] Furthermore, a rotating motor is installed on the outside of the sand adding component.

[0009] Furthermore, spiral conveying blade rods are rotatably installed on the inner sides of the two sand delivery pipes, and both sides of the two spiral conveying blade rods are arranged on the inner bottom of the first sand storage barrel and the second sand storage barrel. The first sand storage barrel and the second sand storage barrel are respectively equipped with conveying motors for driving the two spiral conveying blade rods to rotate.

[0010] Furthermore, the upper side of the sand adding component is locked and connected to the sand feeding pipe through bolts.

[0011] Furthermore, the two spiral conveying blade rod rotors are oriented in opposite directions.

[0012] The beneficial effects of the present invention are as follows: the present invention reciprocates the sand in the first sand storage barrel and the second sand storage barrel through two sand feeding pipes, and the sand in the feeding process directly falls into each sand adding component for equal collection, and then is sent to the sand box of each molding machine, so that sand can be added to multiple sand boxes at the same time, and the labor of manual measurement is greatly reduced, and the efficiency of sand adding is improved; and the sand adding components can be disassembled and replaced for later maintenance and replacement, which has more positive and beneficial use effects than the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the top view of the connection structure between the first sand storage cylinder and the second sand storage cylinder of the utility model;

[0016] Figure 3 This is a side structural diagram of the sand adding component of the utility model;

[0017] In the figure: support frame 1, first sand storage cylinder 2, second sand storage cylinder 21, sand delivery pipe 3, sand outlet 31, sand adding component 4, rotating shaft 41, dividing plate 5, sand cavity 51, rotating motor 52, sand adding port 6, spiral conveying blade rod 7, conveying motor 8. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 3The utility model provides a technical solution for the quantitative sand adding mechanism of a molding machine: it includes a support frame 1 and a first sand storage barrel 2 and a second sand storage barrel 21 arranged on the left and right sides of the support frame 1, two sand feeding pipes 3 are installed on the opposite side of the bottom of the first sand storage barrel 2 and the second sand storage barrel 21 for reciprocating sand feeding, and a plurality of interconnected sand adding components 4 are detachably installed on the lower side of the middle part of the two sand feeding pipes 3. Specifically, the upper side of the sand adding component 4 is locked and connected to the sand feeding pipe 3 by bolts to achieve disassembly, and each sand adding component 4 is correspondingly arranged on the upper side of the sand box feed port of each molding machine.

[0020] A plurality of sand outlet ports 31 are provided on the lower side of the sand feeding pipe 3, and the middle part of the sand outlet port 31 is connected to the upper side of the sand adding component 4, so that when the sand feeding pipe 3 is conveying sand, the sand can enter the sand adding component 4 through the sand outlet port 31; and the interior of the sand adding component 4 is arranged as a cylindrical cavity, and a rotating shaft 41 is rotatably installed in the middle of the cylindrical cavity, and a plurality of dividing plates 5 are installed on the rotating shaft 41, and each dividing plate 5 is distributed in a circular array with the rotating shaft 41 as the center, and every two adjacent dividing plates 5 form an equal sand cavity 51, so that the capacity of each sand cavity 51 that can hold sand is the same.

[0021] A sand adding port 6 is provided on the lower side of the sand adding component 4. The outward openings of the sand cavity 51 are larger than the widths of the sand adding port 6 and the sand outlet port 31, so that the sand in the sand adding port 6 can fall completely into the sand cavity 51. The dividing plate 5 can fit closely to the inner wall of the cylindrical cavity to avoid hourglassing due to excessive gaps when the sand cavity 51 rotates. In order to realize the rotation of the sand cavity 51, a rotating motor 52 is installed on the outside of the sand adding component 4, and the rotating shaft 41 drives each dividing plate 5 and each sand cavity 51 to rotate.

[0022] In order to realize the sand conveying of the sand delivery pipe 3, spiral conveying blade rods 7 are rotatably installed on the inner sides of the two sand delivery pipes 3. Both sides of the two spiral conveying blade rods 7 are arranged at the inner bottom of the first sand storage cylinder 2 and the second sand storage cylinder 21. The first sand storage cylinder 2 and the second sand storage cylinder 21 are respectively installed with a conveying motor 8 for driving the two spiral conveying blade rods 7 to rotate, and the rotors of the two spiral conveying blade rods 7 are in opposite directions.

[0023] More specific usage principles:

[0024] The utility model is that after sand is put into the first sand storage cylinder 2 and the second sand storage cylinder 21, the two conveying motors 8 respectively drive the two spiral conveying blade rods 7 to rotate. Since the rotors of the two spiral conveying blade rods 7 face in opposite directions, the sand in the first sand storage cylinder 2 is conveyed into the second sand storage cylinder 21 by one of the spiral conveying blade rods 7, and the sand in the second sand storage cylinder 21 is conveyed into the first sand storage cylinder 2 by the other spiral conveying blade rod 7, forming a reciprocating conveying; when the sand passes through the sand outlet 31 in the middle of the sand feeding pipe 3, it will fall into the sand feeding pipe 3. On one of the sand cavities 51 in the component 4, after the sand cavity 51 is filled in a certain period of time, the rotating shaft 41 is driven to rotate by the rotating motor 52, and then each dividing plate 5 is rotated, and the new equal amount of vacant sand cavities 51 are connected to the corresponding sand outlet port 31. When the filled sand cavity 51 rotates downward to the corresponding sand adding port 6, the sand falls into the sand box of the molding machine through the sand adding port 6. Since multiple sand adding components 4 can be installed, sand can be added to multiple sand boxes at the same time, thereby improving the efficiency of sand adding and reducing labor.

[0025] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A quantitative sand adding mechanism for a molding machine, characterized in that: The invention comprises a support frame (1) and a first sand storage cylinder (2) and a second sand storage cylinder (21) arranged on the left and right sides of the support frame (1); two sand delivery pipes (3) are installed on opposite sides of the bottom of the first sand storage cylinder (2) and the second sand storage cylinder (21) for reciprocating sand delivery; a plurality of interconnected sand adding components (4) are detachably installed on the lower sides of the middle parts of the two sand delivery pipes (3), and each sand adding component (4) is correspondingly arranged on the upper side of the sand box feed port of each molding machine.

2. The quantitative sand adding mechanism of a molding machine according to claim 1, characterized in that: A plurality of sand outlet openings (31) are provided on the lower side of the sand delivery pipe (3), and the middle portion of the sand outlet opening (31) is connected to the upper side of the sand adding component (4).

3. The quantitative sand adding mechanism of a molding machine according to claim 2, characterized in that: The interior of the sand adding component (4) is configured as a cylindrical cavity, a rotating shaft (41) is rotatably mounted in the middle of the cylindrical cavity, and a plurality of dividing plates (5) are mounted on the rotating shaft (41), wherein the dividing plates (5) are arranged in a circular array with the rotating shaft (41) as the center, and every two adjacent dividing plates (5) form equal portions of the sand cavity (51).

4. The quantitative sand adding mechanism of a molding machine according to claim 3, characterized in that: A sand adding port (6) is provided on the lower side of the sand adding component (4), and the outward opening of the sand cavity (51) is larger than the width of the sand adding port (6) and the sand outlet port (31), and the dividing plate (5) can be adapted to fit on the inner wall of the cylindrical cavity.

5. The quantitative sand adding mechanism of a molding machine according to claim 3 or 4, characterized in that: A rotating motor (52) is installed on the outside of the sand adding component (4).

6. The quantitative sand adding mechanism of a molding machine according to claim 1, characterized in that: A spiral conveying blade rod (7) is rotatably mounted on the inner sides of the two sand delivery pipes (3). Both sides of the two spiral conveying blade rods (7) are arranged at the inner bottom of the first sand storage cylinder (2) and the second sand storage cylinder (21). The first sand storage cylinder (2) and the second sand storage cylinder (21) are respectively equipped with a conveying motor (8) for driving the two spiral conveying blade rods (7) to rotate.

7. The quantitative sand adding mechanism of a molding machine according to claim 1, characterized in that: The upper side of the sand adding component (4) is locked and connected to the sand feeding pipe (3) via bolts.

8. The quantitative sand adding mechanism of a molding machine according to claim 6, characterized in that: The rotors of the two spiral conveying blade rods (7) are oriented in opposite directions.

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