Closed sand-set core making production line

Abstract

The utility model discloses a closed sand collecting type sand core manufacturing production line, including the sand adding platform of horizontal arrangement, sand adding trolley and sand adding track are provided with on sand adding platform top, and the longitudinal arrangement of sand adding platform below is arranged with multiple closed sand collecting type core shooter, closed sand collecting type core shooter has four closed type encapsulation, and is equipped with waste gas export behind closed sand collecting type core shooter, and dust main pipeline is connected with waste gas export together, the inside of closed sand collecting type core shooter is equipped with sand slide plate subassembly, and the side below of sand slide plate subassembly is equipped with belt conveying subassembly, and the end of belt conveying subassembly is connected with waste sand processing equipment. The utility model can close collection waste sand in the core making process, avoids the sand pollution environment and the influence equipment operation, protects the workshop environment and personnel health, promotes sand adding efficiency and personnel operation efficiency, reduces production cost.

Description

Technical Field

[0001] This utility model relates to the field of sand core production technology, and in particular to a closed sand core manufacturing production line. Background Technology

[0002] Core shooters are widely used in the foundry industry. This equipment injects a molding sand mixture containing liquid or solid thermosetting resin binder into a core mold. After the molding sand hardens within the mold, it is removed to obtain the core. Currently, most core shooters use coated sand as the molding sand, where the phenolic resin on the surface solidifies upon heating to form the core. However, this process generates a large amount of fumes. Existing core shooters often employ an open design, allowing fumes to escape from the sand box joints and during mold opening. This pollutes the workshop environment and negatively impacts the occupational health of workers. Furthermore, the high-temperature fumes can interfere with normal production, ultimately harming the product.

[0003] During the sand core manufacturing process, loose sand left at the sand-shooting hole after sand blasting needs to be cleaned up promptly to prevent it from affecting subsequent sand-shooting operations. This loose sand cannot be collected centrally at the work site and usually scatters around the equipment, polluting the workshop environment. During cleanup, the loose sand around the equipment is often blown up, and some of it gets blown into the equipment's operating mechanisms, affecting the reliability and accuracy of equipment operation. Furthermore, the loose sand and dust dispersed throughout the workshop can have adverse effects on the health of the workers.

[0004] When production capacity is needed, companies often choose to use core shooting machines in production lines. Due to the open design of the core shooting machines, a large amount of high-temperature fumes generated by multiple core shooting machines during operation cannot be effectively dispersed and remain in the workshop, which is more harmful to the occupational health of personnel and the workshop environment, and increases the risk of occupational diseases for employees.

[0005] Currently, sand is mostly added to core shooters individually. However, when the number of core shooters increases to a certain extent, the different production rhythms of each machine require operators to spend a lot of time frequently adding sand, which affects production efficiency. Utility Model Content

[0006] The purpose of this invention is to provide a closed-loop sand core manufacturing production line. This invention can collect waste sand during the core-making process in a closed loop, avoiding environmental pollution and equipment operation caused by loose sand, protecting the workshop environment and personnel health, improving sand feeding efficiency and personnel operation efficiency, and reducing production costs.

[0007] The technical solution of this utility model is as follows: A closed sand-collecting core manufacturing production line includes a horizontally arranged sand-adding platform, a sand-adding trolley and a sand-adding track above the sand-adding platform, and multiple closed sand-collecting core shooters arranged vertically below the sand-adding platform. Each closed sand-collecting core shooter has a four-sided sealed enclosure and a waste gas outlet at the rear of the closed sand-collecting core shooter. The waste gas outlet is connected to a main dust removal pipeline. A sand-slugging plate assembly is provided inside the closed sand-collecting core shooter, and a belt conveyor assembly is provided below the side of the sand-slugging plate assembly. The end of the belt conveyor assembly is connected to a waste sand treatment device.

[0008] In the aforementioned closed sand-collecting core manufacturing production line, one side of the sand-adding platform is installed above the closed sand-collecting core shooter via a column.

[0009] In the aforementioned closed sand-collecting core manufacturing production line, the sand-adding platform is constructed from profiles and has two sand-adding tracks on it; the sand-adding trolley is placed on the sand-adding tracks.

[0010] In the aforementioned closed sand-collecting core manufacturing production line, a sand-collecting sluice plate is provided on the sand-collecting platform, and the sand-collecting sluice plate has a funnel-shaped opening; a sand-collecting hopper is provided below the sand-collecting sluice plate.

[0011] The aforementioned closed sand-collecting core manufacturing production line includes a sand-adding trolley comprising a drive motor, a trolley frame, rollers, a cylinder pull-out assembly, and a sand-loading hopper; the drive motor of the sand-adding trolley (2) is connected to the rollers through a transmission mechanism, driving the trolley frame to move along the sand-adding track; the sand-loading hopper is fixedly installed on the upper part of the trolley frame, and a cylinder pull-out assembly is provided at the bottom sand outlet of the sand-loading hopper; the rollers are symmetrically arranged on both sides of the trolley frame, forming a rolling fit with the sand-adding track.

[0012] In the aforementioned closed sand-collecting core manufacturing production line, two closed sand-collecting core shooters are arranged as a group, facing each other, with 10-20 groups arranged in an array.

[0013] The aforementioned closed sand-collecting core manufacturing production line has a double sliding door and a steel plate protective cover on the front of the closed sand-collecting core shooter.

[0014] Compared with existing technologies, this utility model features a four-sided sealed core shooter. Exhaust gas is centrally treated via a dust removal main pipeline connected to the outlet, and waste sand is collected in a sealed manner through a sand chute and belt conveyor assembly, preventing flue gas escape and loose sand pollution, thus reducing personnel health risks. This utility model allows for the addition of sand to multiple core shooters via a sand-adding trolley. The core shooters are arranged in pairs facing each other, allowing one person to control two machines, reducing manual back-and-forth movement and workload, and improving production efficiency. The waste sand from this utility model can be recycled and reused after being transported to processing equipment, reducing the cost of purchasing new sand and disposing of waste sand. This utility model achieves sealed collection of waste sand, preventing it from entering the equipment's operating mechanisms, reducing equipment wear and malfunctions, and lowering maintenance costs. The horizontal sand-adding platform and the vertical core shooter are arranged in a three-dimensional configuration, creating a compact array of core shooters and improving workshop space utilization. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged view of a part Figure 3 This is a partial top view of the structure of the present invention; Figure 4 This is a left view of the overall structure of the present invention; Figure 5 This is a schematic diagram of the sand-adding trolley structure of the present invention; Figure 6 This is a schematic diagram of the unpacked internal structure of the present invention. The labels in the attached diagram are 1. Sand adding platform; 2. Sand adding trolley; 3. Sand adding track; 4. Sealed sand collecting core shooter; 5. Sealed sealing; 6. Exhaust gas outlet; 7. Dust removal main pipeline; 8. Column; 9. Sand chute assembly; 10. Belt conveyor assembly; 11. Waste sand treatment equipment; 12. Sand adding chute; 13. Sand collecting hopper; 14. Drive motor; 15. Trolley frame; 16. Roller; 17. Cylinder pull-out assembly; 18. Sand loading hopper; 19. Double-opening sliding door; 20. Steel plate protective cover. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0017] Example: A closed sand core manufacturing production line, such as... Figure 1-3 As shown, it includes a horizontally arranged sand-adding platform 1, a longitudinally arranged closed sand-collecting core shooter 4, a waste sand collection and conveying system, and a waste gas treatment connection structure. The sand-adding platform 1 is constructed using profiles and is arranged horizontally overall. Two parallel sand-adding tracks 3 are set above the platform, and movable sand-adding trolleys 2 are mounted on the tracks; as shown... Figure 5As shown, the sand-adding trolley 2 consists of a drive motor 14, a trolley frame 15, rollers 16, a cylinder pull-out assembly 17, and a sand-filling hopper 18. The drive motor 14 of the sand-adding trolley 2 is connected to the rollers 16 through a transmission mechanism, driving the trolley frame 15 to move along the sand-adding track 3. The sand-filling hopper 18 is fixedly installed on the upper part of the trolley frame 15, and the cylinder pull-out assembly 17 is installed at the sand outlet at the bottom of the sand-filling hopper 18. The rollers 16 are symmetrically arranged on both sides of the trolley frame 15, forming a rolling engagement with the sand-adding track 3. The entire movement and sand-adding action of the sand-adding trolley 2 are controlled by a PLC system. Figure 4 As shown, a sand-adding and sand-sliding plate 12 is provided on the sand-adding platform 1 at the position corresponding to each closed sand-collecting core shooter 4. The sand-adding and sand-sliding plate 12 has a funnel-shaped opening and is connected to a sand-collecting hopper 13 below. The molding sand is guided into the sand-collecting hopper 13 through the sand-adding and sand-sliding plate 12 and then enters the closed sand-collecting core shooter 4 to avoid scattering.

[0018] The sealed sand-collecting core shooter 4 is arranged longitudinally below the sand-adding platform 1. The sealed sand-collecting core shooters 4 are arranged in pairs facing each other, with 15 sets arranged in total. Operators stand between two sets of facing sealed sand-collecting core shooters 4, and one person can control the core-making operation of two sealed sand-collecting core shooters 4. In addition, the operator below the initial position of the sand-adding trolley 2 is additionally responsible for controlling one sealed sand-collecting core shooter 4 and scheduling the sand-adding trolley 2 to ensure that the sand-adding rhythm matches the core-making requirements. Each sealed sand-collecting core shooter 4 is enclosed on four sides 5, with a double-opening sliding door 19 and a steel plate protective cover 20 on the front, and an exhaust outlet 6 at the rear. All exhaust outlets 6 are uniformly connected to the dust collection main pipe 7 below the sand-adding platform 1. A column 8 on one side of the sand-adding platform 1 is installed above the sealed sand-collecting core shooter 4, achieving a stable connection between the sand-adding platform 1 and the sealed sand-collecting core shooter 4, optimizing the spatial layout.

[0019] like Figure 6 As shown, the sealed sand-collecting core shooter 4 is equipped with a sand-slugging plate assembly 9 inside, and the waste sand (floating sand, residual sand) generated during core making can be collected through the sand-slugging plate assembly 9; a belt conveyor assembly 10 is set below the side of the sand-slugging plate assembly 9, and the waste sand is guided to the belt conveyor assembly 10 through the sand-slugging plate assembly 9; the end of the belt conveyor assembly 10 is connected to the waste sand treatment equipment 11, and the waste sand can be recycled after being transported to the waste sand treatment equipment 11 through the belt conveyor assembly 10 and treated by screening and impurity removal.

[0020] Production line operation process Sand adding operation: The operator adds molding sand to the sand loading hopper 18 of the sand adding trolley 2 and sets the sand adding path and sand adding amount through the PLC system. Driven by the drive motor 14, the sand adding trolley 2 moves along the sand adding track 3 to the sand collecting hopper 13 above the target closed sand collecting core shooter 4. The cylinder pull-out component 17 opens, and the molding sand falls into the sand collecting hopper 13 through the sand loading hopper 18 and the sand adding sluice plate 12, and finally enters the closed sand collecting core shooter 4. After completing the sand adding of a single machine, the sand adding trolley 2 moves to the next closed sand collecting core shooter 4 to realize continuous sand adding of multiple machines.

[0021] Core making and exhaust gas treatment: The sealed sand-collecting core shooter 4 starts to make cores. The high-temperature flue gas generated during the process is confined inside the equipment by the sealed enclosure 5. It enters the dust removal main pipeline 7 through the exhaust gas outlet 6 at the rear and is transported to the exhaust gas purification system outside the workshop. After treatment to meet the standards, it is discharged to avoid flue gas pollution of the workshop environment.

[0022] Waste sand collection and recycling: The floating sand and residual waste sand generated during the core making process naturally slide down to the sand sluice plate assembly 9 inside the closed sand collection core shooter 4, and slide along the sand sluice plate assembly 9 into the belt conveyor assembly 10; the belt conveyor assembly 10 transports the waste sand to the waste sand treatment equipment 11 at the end, and the waste sand treatment equipment 11 screens and removes impurities from the waste sand. The qualified sand after treatment can be reused in the preparation of molding sand mixture, realizing the recycling of waste sand.

[0023] Personnel operation coordination: The operators between the two sets of closed sand-collecting core shooters 4 placed facing each other are responsible for monitoring the core-making progress of the two closed sand-collecting core shooters 4 and taking out and putting in the cores through the double sliding door 19 as needed; the operators below the initial position of the sand-adding trolley 2 simultaneously monitor the operating status of one closed sand-collecting core shooter 4, and control the start, stop and movement of the sand-adding trolley 2 through the PLC system according to the molding sand balance of each closed sand-collecting core shooter 4 to ensure that the sand-adding and core-making rhythms are matched.

[0024] The above description is merely a specific embodiment of the present invention. For those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A closed sand-collecting sand core manufacturing production line, characterized by, The system includes a horizontally arranged sand-adding platform (1), a sand-adding trolley (2) and a sand-adding track (3) above the sand-adding platform (1), and multiple closed sand-collecting core shooters (4) arranged vertically below the sand-adding platform (1). The closed sand-collecting core shooter (4) has a four-sided sealed enclosure (5), and a waste gas outlet (6) is provided at the rear of the closed sand-collecting core shooter (4). The waste gas outlet (6) is connected to a dust removal main pipe (7). The closed sand-collecting core shooter (4) has a sand-slip plate assembly (9) inside, and a belt conveyor assembly (10) is provided below the side of the sand-slip plate assembly (9). The end of the belt conveyor assembly (10) is connected to a waste sand treatment device (11).

2. The closed sand-collecting core manufacturing production line according to claim 1, characterized in that, The sand-adding platform (1) is mounted on one side above the sealed sand-collecting core shooter (4) via a column (8).

3. The closed sand-collecting core manufacturing production line according to claim 1, characterized in that, The sand-adding platform (1) is constructed from profiles and has two sand-adding tracks (3) on it; the sand-adding trolley (2) is placed on the sand-adding tracks (3).

4. The closed sand-collecting core manufacturing production line according to claim 1, characterized in that, The sand adding platform (1) is provided with a sand adding and slugging plate (12), which has a funnel-shaped opening; a sand collecting hopper (13) is provided below the sand adding and slugging plate (12).

5. The closed sand-collecting core manufacturing production line according to claim 1, characterized in that, The sand-adding trolley (2) includes a drive motor (14), a trolley frame (15), rollers (16), a cylinder pull-out assembly (17), and a sand-filling hopper (18). The drive motor (14) of the sand-adding trolley (2) is connected to the rollers (16) through a transmission mechanism, driving the trolley frame (15) to move along the sand-adding track (3). The sand-filling hopper (18) is fixedly installed on the upper part of the trolley frame (15), and the cylinder pull-out assembly (17) is provided at the bottom sand outlet of the sand-filling hopper (18). The rollers (16) are symmetrically arranged on both sides of the trolley frame (15) and form a rolling fit with the sand-adding track (3).

6. The closed sand-collecting core manufacturing production line according to claim 1, characterized in that, The sealed sand-collecting core shooter (4) consists of two units arranged in a group, facing each other, with 10-20 groups arranged in an array.

7. The closed sand-collecting core manufacturing production line according to claim 1, characterized in that, The front of the sealed sand-collecting core shooter (4) is provided with a double sliding door (19) and a steel plate protective cover (20).

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