Double-row multi-mold vertical parting core shooter

Abstract

A double-row multi-mold vertical parting core shooter comprises a base capable of moving between a core making station and a core taking station in a reciprocating mode, an inner half mold is fixedly arranged in the middle of the base, and two rows of first core making hole channels consistent with half sand cores in shape are formed in the two sides of the inner half mold; two outer half molds are movably arranged on the two sides of the inner half mold, and second core making hole channels matched with the first core making hole channels are formed in the sides, close to the inner half mold, of the two outer half molds; driving assemblies are installed on the two sides of the base, and the driving assemblies are connected with the two outer half molds correspondingly and can drive the two outer half molds to move in the direction close to or away from the inner half molds. According to the scheme, the mode that the inner half mold is matched with the two sets of outer half molds is adopted, two rows of core making molds can be formed, dispersed operation of multiple existing single-row core shooting machines is replaced, the occupied space and the number of workers of equipment can be reduced, and the equipment investment cost and the maintenance cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of core shooting machine technology, specifically a double-row multi-mold vertical parting core shooting machine. Background Technology

[0002] The ductile iron pipe industry is currently developing rapidly, with my country's ductile iron pipe production capacity reaching 10 million tons. The products are diverse in type and specification, with a wide range of diameters: DN80-1200 / DN1200-3000. Correspondingly, ductile iron pipe production equipment has also evolved into various specifications and models, forming production lines with different specifications to improve efficiency. This variety of equipment inevitably leads to a large number of spare parts and high maintenance costs. For example, the production of ductile iron pipe socket sand cores is also segmented according to the size range of the sand cores, with different models of core shooters such as DN80-300, DN300-600, DN700-1200, DN1200-2000, and DN2000-3000. Existing core shooters typically have a row of molds for sand core forming. On the one hand, the core shooting machine has low core-making efficiency and requires a significant investment of time; on the other hand, multiple machines need to be deployed separately, resulting in a substantial increase in equipment space, personnel, and spare parts requirements, thus increasing the cost of sand core production and equipment maintenance for enterprises. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model provides a double-row multi-mold vertical parting core shooting machine.

[0004] The technical solution of this utility model is as follows:

[0005] A double-row multi-mold vertical parting core shooting machine includes a base that can reciprocate between a core making station and a core taking station. An inner half mold is fixedly arranged in the middle of the base, and two rows of first core making channels with the same shape as half of a sand core are opened on both sides of the inner half mold.

[0006] Two outer half molds are movably arranged on both sides of the inner half mold, and a second core-making channel adapted to the first core-making channel is opened on the side of the two outer half molds closest to the inner half mold.

[0007] The base is equipped with drive components on both sides, and the drive components are respectively connected to two outer half molds, which can drive them to move in the direction of approaching or moving away from the inner half mold.

[0008] To facilitate the sliding of the outer half mold, two base plates are slidably provided on the base, and the outer half mold is slidably connected to the base plates.

[0009] In order to enable the bottom plate to move the mandrel and thus separate the sand core from the inner half mold, multiple mandrels are fixedly installed on both bottom plates, and the multiple mandrels are respectively located between the corresponding first core-making channel and the second core-making channel.

[0010] To facilitate the movement of the base plate by the outer half mold, a protrusion is provided on the end of each of the two base plates away from the inner half mold, and the upper surface of the protrusion is higher than the lower surface of the outer half mold.

[0011] In order to separate the outer half mold from the sand core and then move the base plate, the maximum distance that can be achieved between the outer side of the outer half mold and the inner side of the protrusion is greater than zero.

[0012] In order to allow the outer half mold to move to separate from the sand core and to avoid moving too far, the maximum distance that the outer side of the outer half mold and the inner side of the protrusion can reach is 5cm-10cm.

[0013] The drive assembly is specifically designed as follows: the drive assembly includes a base frame installed on the outside of the outer half mold, a connecting frame slidably disposed on the base frame, and the connecting frame is connected to the outer half mold;

[0014] Support plates are installed at both ends of the base frame, and telescopic cylinders are installed on the outer side of the support plates, with the output end of the telescopic cylinders connected to the connecting frame.

[0015] To improve the balance and efficiency of the outer half mold during movement, the base frame is provided with two sides located on both sides of the outer half mold in the direction of movement, and two connecting frames are provided on each of the two base frames.

[0016] The diameter of the first core-making hole in the same row is the same, and the diameter of the first core-making channel in the other row is greater than, less than or equal to the diameter of the first core-making channel in the same row. When the diameters of the first core-making holes in the two rows are the same, two rows of sand cores of the same size can be made simultaneously, improving the efficiency of core making. When the diameters of the first core-making holes in the two rows are different, sand cores of different sizes can be made simultaneously, improving the practicality of core making.

[0017] The beneficial effects of this utility model are as follows: This utility model is a double-row multi-mold vertical parting core shooting machine. First, through the cooperation of the first core-making channel and the second core-making channel, and with the mandrel between them, a core-making mold can be formed to realize the preparation of sand cores. Second, unlike the prior art, this solution adopts the form of an inner half mold combined with two sets of outer half molds, which can form two rows of core-making molds, replacing the dispersed operation of multiple single-row core shooting machines in the existing system. This can save equipment space, manpower, and reduce equipment investment and maintenance costs. Finally, the first core-making channels of the two rows can be the same or different, which improves the core-making efficiency and allows for the simultaneous preparation of sand cores of different sizes. Compared with the prior art, it saves the cost investment of different models of equipment. This design greatly improves the practicality and flexibility of the core shooting machine. Attached Figure Description

[0018] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0019] In the attached diagram:

[0020] Figure 1 A front sectional view of a double-row core shooter (mold closed);

[0021] Figure 2 Top view of a double-row core shooter (mold closed);

[0022] Figure 3 This is a frontal sectional view of a double-row core shooting machine (outer half of the mold in the open state);

[0023] Figure 4 This is a frontal sectional view of a double-row core shooting machine (outer and inner half molds in fully open state);

[0024] Figure 5 This is a top view of a double-row core shooting machine (outer and inner half molds fully open);

[0025] Figure 6 This is a partial top view of a double-row core shooter (the diameters of the first core-making channels in the two rows are different);

[0026] The components represented by the various reference numerals in the diagram are:

[0027] 1. Base; 2. Inner half mold; 3. Sand core; 4. First core-making channel; 5. Outer half mold; 6. Second core-making channel; 7. Drive assembly; 71. Base frame; 72. Connecting frame; 73. Support plate; 74. Telescopic cylinder; 8. Base plate; 9. Core rod; 10. Protrusion. Detailed Implementation

[0028] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0029] Example

[0030] As mentioned in the background section, existing core shooting machines only have a single row of molds. Although they can complete the core making process, the inventors found many problems during use. On the one hand, the core making efficiency is slow and requires frequent mold opening and closing. On the other hand, multiple core shooting devices occupy a large space and increase the required personnel and investment costs. Therefore, the inventors made improvements and designed a new type of core shooting machine with double rows of molds, which will be explained in detail below with reference to the illustrations.

[0031] This embodiment provides a dual-row, multi-mold vertical parting core shooting machine. (See also...) Figure 1 The system includes a base 1 that can reciprocate between the core-making station and the core-removing station. The base 1 slides between the core-making station and the core-removing station to realize core-making and core-removing operations. An inner half mold 2 is fixedly set in the middle of the base 1, that is, the center line of the inner half mold 2 and the center line of the base 1 are on the same vertical plane. The inner half mold 2 has two rows of first core-making channels 4 on both sides that are consistent with the shape of half of the sand core 3. The size of the first core-making channel 4 corresponds to the size of the sand core 3 and is one half of the mold for preparing the sand core 3.

[0032] Unlike existing technologies, this solution employs a different design for the other half of the core box mold. Two outer half molds 5 are movably arranged on both sides of the inner half mold 2, forming two rows of core-making molds with the inner half mold 2 in the middle. Each of the two outer half molds 5 has a second core-making channel 6 that is adapted to the first core-making channel 4 on the side closest to the inner half mold 2. The first core-making channel 4 can abut against the second core-making channel 6 to form a complete core-making mold. During core making, the core-shooting end can blow molding sand into the sand core 3 mold composed of the two, forming a complete sand core 3 inside.

[0033] Moreover, during the core-making process, combined with Figure 2 The core rod 9 is required as a support. In this solution, two base plates 8 are slidably arranged on the base 1. The two base plates 8 are located on both sides of the inner half mold 2, and the outer half mold 5 is slidably connected to the base plate 8. That is, the outer half mold 5 can slide along the base plate 8. The core rod 9 is fixedly installed on the base plate 8, and multiple core rods are arranged, which are located between every two opposite first core-making channels 4 and second core-making channels 6. The sand core 3 is formed in the gap between the core rod 9 and the two core-making channels.

[0034] Based on the above structure, combined with Figure 3The movement of the outer half mold 5 is mainly driven by the drive assembly 7. Specifically, the drive assembly 7 is installed on both sides of the base 1 and is connected to the two outer half molds 5 respectively. It can drive them to move in the direction of approaching or moving away from the inner half mold 2 to realize the closing and opening of the core mold. Specifically, the drive assembly 7 includes a base frame 71 installed on the outside of the outer half mold 5, located on both sides in the direction of movement of the outer half mold 5, and two base frames 71 are provided. A connecting frame 72 is slidably provided on the base frame 71. Two connecting frames 72 are provided on each of the two base frames 71 and are respectively connected to the corresponding outer half mold 5. Support plates 73 are installed at both ends of the base frame 71. Telescopic cylinders 74 are installed on the outside of the support plates 73. The telescopic direction of the telescopic cylinders 74 is consistent with the direction of movement of the outer half mold 5 relative to the inner half mold 2. Moreover, each outer half mold 5 is provided with two telescopic cylinders 74, and the output end of the telescopic cylinder 74 is connected to the connecting frame 72. Through the action of the output end of the telescopic cylinder 74, the outer half mold 5 can be driven to move along with the connecting frame 72.

[0035] After the drive component 7 moves the outer half mold 5 outward, combined with Figure 4 and Figure 5 The outer half-mold 5 is separated from the sand core 3. At this time, the inner half-mold 2 also needs to be separated from the sand core 3. However, the inner half-mold 2 is fixed in this design, so it is necessary to move the manufactured sand core 3, that is, to move the mandrel 9. Specifically, each of the two base plates 8 has a protrusion 10 at the end away from the inner half-mold 2, and the upper end face of the protrusion 10 is higher than the lower end face of the outer half-mold 5. Furthermore, the maximum distance that can be achieved between the outer side of the outer half-mold 5 and the inner side face of the protrusion 10 is greater than zero. That is, when the outer half-mold 5 and the inner half-mold 2 are in contact, the outer half-mold 5... There is a gap between the side surface and the inner surface of the protrusion 10. This ensures that when the mold is opened, the telescopic cylinder 74 can first move the outer half mold 5 to a certain position. Then, when the outer half mold 5 touches the protrusion 10, the telescopic cylinder 74 continues to move, moving the base plate 8. This, in turn, causes the sand core 3 to separate from the inner half mold 2 along with the mandrel 9. Moreover, the maximum gap that can be achieved between the outer surface of the outer half mold 5 and the inner surface of the protrusion 10 is 5cm-10cm. This distance ensures that the outer half mold 5 can separate from the sand core 3 at a suitable position and avoids excessive movement that would waste the driving force of the telescopic cylinder 74.

[0036] It should be noted that the diameters of the first core-making channels 4 located in the same row are consistent, such as... Figure 1-5As shown, the first core-making channel 4 in the same row has the same diameter, which facilitates the production of sand cores 3 of the same type in the same row using a core shooter. The diameter of the first core-making channel 4 in the other row is greater than, less than, or equal to the diameter of the first core-making channel 4 in the first row. This means there are two implementation methods: one is that the first core-making channel 4 in both rows has the same diameter, producing sand cores 3 of the same size in both rows, which greatly improves the efficiency of producing the same sand core 3; the other is that the first core-making channel 4 in the two rows has different diameters, combined with… Figure 6 This allows the equipment to simultaneously produce two different sizes of sand cores. The diameter can be designed according to the actual manufacturing size of the factory, which improves the practicality and flexibility of the core shooting mechanism. Both designs can save on equipment investment and factory space.

Claims

1. A double-row multi-mold vertical parting core shooting machine, comprising a base (1) capable of reciprocating between a core-making station and a core-removing station, characterized in that, The base (1) is fixedly provided with an inner half mold (2) in the middle position, and the inner half mold (2) has two rows of first core-making channels (4) with the same shape as half of the sand core (3) on both sides; The inner half mold (2) is provided with two outer half molds (5) on both sides, and the two outer half molds (5) are provided with a second core-making channel (6) that is adapted to the first core-making channel (4) on the side of the inner half mold (2). The base (1) is equipped with drive components (7) on both sides, and the drive components (7) are connected to two outer half molds (5) respectively, which can drive them to move in the direction of approaching or moving away from the inner half mold (2).

2. The double-row multi-mold vertical parting core shooting machine according to claim 1, characterized in that, Two base plates (8) are slidably disposed on the base (1), and the outer half mold (5) is slidably connected to the base plates (8).

3. The double-row multi-mold vertical parting core shooting machine according to claim 2, characterized in that, Multiple core rods (9) are fixedly installed on both of the base plates (8), and the multiple core rods (9) are respectively located between the first core-making channel (4) and the second core-making channel (6).

4. The double-row multi-mold vertical parting core shooting machine according to claim 2, characterized in that, Both of the two base plates (8) have a protrusion (10) at the end away from the inner half mold (2), and the upper surface of the protrusion (10) is higher than the lower surface of the outer half mold (5).

5. The double-row multi-mold vertical parting core shooting machine according to claim 4, characterized in that, The maximum distance that can be achieved between the outer side of the outer half mold (5) and the inner side of the protrusion (10) is greater than zero.

6. The double-row multi-mold vertical parting core shooting machine according to claim 5, characterized in that, The maximum distance that can be achieved between the outer side of the outer half mold (5) and the inner side of the protrusion (10) is 5cm-10cm.

7. The double-row multi-mold vertical parting core shooting machine according to claim 1, characterized in that, The drive assembly (7) includes a base frame (71) installed on the outside of the outer half mold (5), and a connecting frame (72) is slidably arranged on the base frame (71), and the connecting frame (72) is connected to the outer half mold (5); The base frame (71) is equipped with support plates (73) at both ends. A telescopic cylinder (74) is installed on the outside of the support plate (73), and the output end of the telescopic cylinder (74) is connected to the connecting frame (72).

8. The double-row multi-mold vertical parting core shooting machine according to claim 7, characterized in that, The base frame (71) has two sides located on both sides of the moving direction of the outer half mold (5), and two connecting frames (72) are respectively provided on the two base frames (71).

9. The double-row multi-mold vertical parting core shooting machine according to claim 1, characterized in that, The diameter of the first core-making hole in the same row is the same, and the diameter of the first core-making channel (4) in another row is greater than, less than or equal to the diameter of the first core-making channel (4) in that row.

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