Core making device for producing hot core casting based on precoated sand

Abstract

The invention discloses a precoated sand hot core casting production-based core making device which comprises a base, two supporting rods are symmetrically and fixedly arranged on the base, a back plate is fixedly arranged on the two supporting rods, two mounting seats are symmetrically and slidably arranged on the back plate, and the two mounting seats are slidably arranged on the back plate through sliding rods; two sliding grooves corresponding to the sliding rods are symmetrically formed in the back plate, mounting grooves are formed in the two mounting bases, precoated sand casting mold shells are fixedly arranged in the two mounting grooves, heating furnaces are fixedly arranged on the inner walls of the two mounting grooves, and the two heating furnaces are tightly attached to the precoated sand casting mold shells. And fixing mechanisms corresponding to the precoated sand casting mold shell are arranged in the two mounting grooves. According to the precoated sand mold, opening and closing of the precoated sand mold shell can be rapidly controlled according to needs, the precoated sand mold shell and the inner mold can be replaced, the device can produce different types of precoated sand molds, and the adaptability of the device is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of production of coated sand hot core castings, and in particular to a core making device for production of coated sand hot core castings. Background Art

[0002] Coated sand is a material widely used in the foundry industry, especially in the production of hot core castings. Coated sand is composed of modified phenolic resin, magnesium stearate, hexamethylenetetramine, bentonite, silicon carbide, silicone oil and silica sand, etc. It has good heat resistance and wear resistance, and can improve the surface quality and production efficiency of castings. Hot core castings refer to castings that are used after the core sand is heated to a certain temperature during the casting process. This process can improve the internal quality and dimensional accuracy of the castings, and is particularly suitable for the production of castings with complex shapes and internal structures.

[0003] In the prior art, in the traditional production process of coated sand hot core castings, the coated sand casting mold shell is usually heated first. After being heated until the coated sand can adhere to the mold and quickly form, the coated sand is sprayed into the mold shell to complete the production of the coated sand hot core castings. In the traditional production device of coated sand hot core castings, the mold shell and the inner mold are both fixed, which makes the production type of hot core castings single and greatly reduces the adaptability of the device to the production of different hot core castings. To this end, we propose a core making device based on the production of coated sand hot core castings to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: the mold of the traditional coated sand hot core casting production device is fixed, it is difficult to process different types of hot core castings, and the adaptability is poor, and a core making device based on coated sand hot core casting production is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A core making device for producing coated sand hot core castings, comprising a base, two support rods symmetrically fixedly arranged on the base, a back plate fixedly arranged on the two support rods, two mounting seats symmetrically slidably arranged on the back plate, the two mounting seats are slidably arranged on the back plate through a slide bar, two slide grooves corresponding to the slide bar are symmetrically arranged on the back plate, the two mounting seats are provided with mounting grooves, coated sand casting mold shells are fixedly arranged in the two mounting grooves, heating furnaces are fixedly arranged on the inner walls of the two mounting grooves, and the two heating furnaces are It is arranged close to the coated sand casting mold shell, and the two installation grooves are each provided with a fixing mechanism corresponding to the coated sand casting mold shell. The back plate is also provided with an inner mold clamping mechanism. Blowers are fixedly arranged on the two mounting seats, and connecting pipes are fixedly arranged at the output ends of the two blowers. The two connecting pipes are fixedly penetrated through the upper wall of the mounting seat and extend to the mounting groove. Openings corresponding to the connecting pipes are opened on the two coated sand casting mold shells, and sand injection ports are provided on the two blowers, and corresponding opening and closing mechanisms are provided on the two mounting seats.

[0007] Preferably, the fixing mechanism includes two clamping blocks, and the lower walls of the two installation grooves are provided with telescopic grooves corresponding to the clamping blocks. The two clamping blocks are respectively slidably arranged in the two telescopic grooves, and the two clamping blocks are connected to the inner walls of the telescopic grooves through springs. The lower walls of the two coated sand casting mold shells are provided with slots corresponding to the clamping blocks, and the side walls of the two clamping blocks away from the back plate are inclined, and the two clamping blocks are provided with corresponding pulling mechanisms.

[0008] Preferably, the pulling mechanism includes two pull rods, which are respectively fixed on the side walls of the two blocks close to the spring, and the two pull rods slide through the lower wall of the mounting seat respectively, and the ends of the two pull rods away from the blocks are fixedly connected with pull handles.

[0009] Preferably, the inner mold clamping mechanism includes two clamping plates, and the two clamping plates are slidably arranged on the back plate through sliders. The back plate is provided with sliding grooves corresponding to the two sliders, and the sliding groove is arranged between the two sliding grooves. A control mechanism corresponding to the two clamping plates is arranged in the sliding groove, and an opening corresponding to the inner mold is opened at one end of the two coated sand casting mold shells close to the back plate.

[0010] Preferably, the control mechanism includes a first threaded rod, which is rotatably arranged in a sliding groove and is rotatably passed through two sliding blocks, and both of the two sliding blocks are provided with threaded through holes corresponding to the first threaded rod, and the threads at both ends of the first threaded rod are arranged in opposite directions, and one end of the first threaded rod is rotatably passed through the side wall of the back plate and is fixedly connected to a turning handle.

[0011] Preferably, the opening and closing mechanism includes a second threaded rod, the lower walls of the two mounting seats are fixedly provided with connecting plates, a motor is fixedly provided on the base, the second threaded rod is fixedly provided at the output end of the motor, the second threaded rod rotates and passes through the two connecting plates, the two connecting plates are provided with threaded through holes corresponding to the second threaded rod, and the threads at both ends of the second threaded rod are arranged in opposite directions.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: through the cooperation of the clamping block and the clamping slot, the limited fixation of the coated sand casting mold shell in the installation slot is realized, thereby realizing the rapid installation and fixation of the coated sand casting mold shell; by setting the first threaded rod, the control of the slider is realized, thereby realizing the control of the clamping plate; the turning handle can drive the clamping plate to move closer, thereby realizing the clamping and fixation of the inner mold; through the cooperation of the second threaded rod and the connecting plate, the control of the two mounting seats is realized; turning on the motor can drive the mounting seats to move closer, thereby driving the two coated sand casting mold shells to move closer and close; through the cooperation of the coated sand casting mold shell and the inner mold, a mold for the hot core casting is formed. After the coated sand casting mold shell is heated by a heating furnace, the blower is turned on to spray the coated sand into the coated sand casting mold shell through the sand injection port, thereby realizing the production operation of hot core castings. By setting a pull rod, the card block is controlled. Pulling the pull rod can drive the card block to slide out of the slot, thereby releasing the restriction and fixation of the coated sand casting mold shell, and the coated sand casting mold shell can be slid out, so that the coated sand casting mold shell can be quickly replaced, and then the fixation of the inner mold can be released by rotating the first threaded rod, and the inner mold can be replaced, thereby realizing the replacement of the device mold, so that the device can complete the processing of different types of hot core castings, which greatly improves the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the three-dimensional structure of a core making device for producing coated sand hot core castings proposed by the present invention;

[0014] Figure 2 A schematic diagram of the three-dimensional structure of a core making device for producing coated sand hot core castings proposed by the present invention from another angle;

[0015] Figure 3 A schematic diagram of the side structure of a core making device for producing coated sand hot core castings proposed by the present invention;

[0016] Figure 4 for Figure 3 The structural diagram at A in the middle;

[0017] Figure 5 The present invention provides a schematic top view of the structure of a core making device for producing hot core castings based on coated sand.

[0018] In the figure: 1 base, 2 support rod, 3 back plate, 4 slide groove, 5 slide rod, 6 mounting seat, 7 mounting groove, 8 heating furnace, 9 coated sand casting mold shell, 10 blower, 11 connecting pipe, 12 sand injection port, 13 first threaded rod, 14 sliding groove, 15 turning handle, 16 motor, 17 connecting plate, 18 second threaded rod, 19 pull handle, 20 telescopic groove, 21 block, 22 spring, 23 pull rod, 24 clamping plate, 25 slider. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-Figure 5A core making device for producing hot core castings based on coated sand comprises a base 1, two support rods 2 are symmetrically fixedly arranged on the base 1, a back plate 3 is fixedly arranged on the two support rods 2, two mounting seats 6 are symmetrically slidably arranged on the back plate 3, the two mounting seats 6 are slidably arranged on the back plate 3 through a slide rod 5, two slide grooves 4 corresponding to the slide rod 5 are symmetrically provided on the back plate 3, mounting grooves 7 are provided on the two mounting seats 6, coated sand casting mold shells 9 are fixedly arranged in the two mounting grooves 7, heating furnaces 8 are fixedly arranged on the inner walls of the two mounting grooves 7, the two heating furnaces 8 are arranged closely against the coated sand casting mold shells 9, the two mounting grooves 7 are provided with fixing mechanisms corresponding to the coated sand casting mold shells 9, the fixing mechanisms comprise two clamping blocks 21, and the lower walls of the two mounting grooves 7 are provided with fixing mechanisms corresponding to the coated sand casting mold shells 9. Both are provided with telescopic grooves 20 corresponding to the blocks 21, and the two blocks 21 are respectively slidably arranged in the two telescopic grooves 20, and the two blocks 21 are connected to the inner wall of the telescopic groove 20 through springs 22. The lower walls of the two coated sand casting mold shells 9 are provided with slots corresponding to the blocks 21, and the side walls of the two blocks 21 away from the back plate 3 are inclined, and the two blocks 21 are provided with corresponding pulling mechanisms, and the pulling mechanisms include two pull rods 23, and the two pull rods 23 are respectively fixedly arranged on the side walls of one end of the two blocks 21 close to the spring 22, and the two pull rods 23 are respectively slidably arranged through the lower wall of the mounting seat 6, and the ends of the two pull rods 23 away from the blocks 21 are fixedly connected with the pull handle 19, and the back plate 3 is also provided with an inner mold clamping mechanism The inner mold clamping mechanism includes two clamping plates 24, and the two clamping plates 24 are slidably arranged on the back plate 3 through a slider 25. The back plate 3 is provided with a sliding groove 14 corresponding to the two sliders 25, and the sliding groove 14 is arranged between the two sliding grooves 4. A control mechanism corresponding to the two clamping plates 24 is arranged in the sliding groove 14, and the control mechanism includes a first threaded rod 13, and the first threaded rod 13 is rotatably arranged in the sliding groove 14, and the first threaded rod 13 is rotatably arranged through the two sliders 25, and the two sliders 25 are provided with threaded through holes corresponding to the first threaded rod 13, and the threads at both ends of the first threaded rod 13 are arranged in opposite directions, and one end of the first threaded rod 13 is rotatably arranged through the side wall of the back plate 3 and is fixedly connected with a turning handle 15, and two coated sand casting mold shells 9 is provided with an opening corresponding to the inner mold at one end close to the back plate 3, blowers 10 are fixedly arranged on the two mounting seats 6, connecting pipes 11 are fixedly arranged at the output ends of the two blowers 10, and the two connecting pipes 11 are fixedly penetrated through the upper wall of the mounting seat 6 and extend into the mounting groove 7, openings corresponding to the connecting pipes 11 are provided on the two coated sand casting mold shells 9, and sand injection ports 12 are provided on the two blowers 10, and opening and closing mechanisms corresponding thereto are provided on the two mounting seats 6, and the opening and closing mechanisms include a second threaded rod 18, and connecting plates 17 are fixedly arranged on the lower walls of the two mounting seats 6, and a motor 16 is fixedly arranged on the base 1, and the second threaded rod 18 is fixedly arranged at the output end of the motor 16, and the second threaded rod 18 rotates and penetrates the two connecting plates 17,The two connecting plates 17 are both provided with threaded through holes corresponding to the second threaded rod 18, and the threads at both ends of the second threaded rod 18 are arranged in opposite directions. The cooperation between the clamping block 21 and the clamping groove realizes the restricted fixation of the coated sand casting mold shell 9 in the installation groove 7, thereby realizing the rapid installation and fixation of the coated sand casting mold shell 9. The control of the slider 25 is realized by setting the first threaded rod 13, thereby realizing the control of the clamping plate 24. The turning handle 15 can drive the clamping plate 24 to move closer, thereby realizing the clamping and fixation of the inner mold. The cooperation between the second threaded rod 18 and the connecting plate 17 realizes the control of the two mounting seats 6. Turning on the motor 16 can drive the mounting seats 6 to move closer, thereby driving the two coated sand casting mold shells 9 to move closer and close. The inner mold is matched to form the mold of the hot core casting. After the coated sand casting mold shell 9 is heated by the heating furnace 8, the blower 10 is turned on to spray the coated sand into the coated sand casting mold shell 9 through the sand injection port 12, thereby realizing the production operation of the hot core casting. By setting the pull rod 23, the control of the block 21 is realized. Pulling the pull rod 23 can drive the block 21 to slide out of the slot, thereby releasing the restriction and fixation of the coated sand casting mold shell 9, and the coated sand casting mold shell 9 can be slid out, so that the coated sand casting mold shell 9 can be quickly replaced. Then, by rotating the first threaded rod 13 to release the fixation of the inner mold, the inner mold can be replaced, thereby realizing the replacement of the device mold, so that the device can complete the processing of different types of hot core castings, greatly improving the adaptability of the device.

[0021] In the present invention, the cooperation between the clamping block 21 and the clamping groove realizes the restricted fixation of the coated sand casting mold shell 9 in the installation groove 7, thereby realizing the rapid installation and fixation of the coated sand casting mold shell 9, and the first threaded rod 13 is provided to realize the control of the slider 25, thereby realizing the control of the clamping plate 24, and the turning handle 15 can drive the clamping plate 24 to move closer, thereby realizing the clamping and fixation of the inner mold, and the cooperation between the second threaded rod 18 and the connecting plate 17 realizes the control of the two mounting seats 6, and turning on the motor 16 can drive the mounting seats 6 to move closer, thereby driving the two coated sand casting mold shells 9 to move closer and close, and the cooperation between the coated sand casting mold shell 9 and the inner mold forms a mold for the hot core casting, and by adding After the hot furnace 8 heats the coated sand casting mold shell 9, the blower 10 is turned on to spray the coated sand into the coated sand casting mold shell 9 through the sand injection port 12, thereby realizing the production operation of the hot core casting. By setting the pull rod 23, the control of the block 21 is realized. Pulling the pull rod 23 can drive the block 21 to slide out of the slot, thereby releasing the restriction on the coated sand casting mold shell 9, and the coated sand casting mold shell 9 can be slid out, so that the coated sand casting mold shell 9 can be quickly replaced, and then the fixation of the inner mold can be released by rotating the first threaded rod 13, and the inner mold can be replaced, thereby realizing the replacement of the device mold, so that the device can complete the processing of different types of hot core castings, which greatly improves the adaptability of the device.

[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A core making device for producing hot core castings based on coated sand, comprising a base (1), characterized in that: Two support rods (2) are symmetrically fixedly arranged on the base (1), a back plate (3) is fixedly arranged on the two support rods (2), two mounting seats (6) are symmetrically slidably arranged on the back plate (3), the two mounting seats (6) are slidably arranged on the back plate (3) through a sliding rod (5), two sliding grooves (4) corresponding to the sliding rod (5) are symmetrically provided on the back plate (3), a mounting groove (7) is provided on the two mounting seats (6), a coated sand casting mold shell (9) is fixedly arranged in the two mounting grooves (7), a heating furnace (8) is fixedly arranged on the inner wall of the two mounting grooves (7), and the two heating furnaces (8) are closely attached to the coated sand casting mold shell (9) The two installation grooves (7) are each provided with a fixing mechanism corresponding to the coated sand casting mold shell (9), the back plate (3) is also provided with an inner mold clamping mechanism, the two installation seats (6) are each fixedly provided with a blower (10), the output ends of the two blowers (10) are each fixedly provided with a connecting pipe (11), the two connecting pipes (11) are each fixedly passed through the upper wall of the installation seat (6) and extend to be provided in the installation groove (7), the two coated sand casting mold shells (9) are each provided with an opening corresponding to the connecting pipe (11), and the two blowers (10) are each provided with a sand injection port (12), and the two installation seats (6) are each provided with an opening and closing mechanism corresponding thereto.

2. A core making device for producing hot core castings based on coated sand according to claim 1, characterized in that: The fixing mechanism comprises two clamping blocks (21), the lower walls of the two installation grooves (7) are provided with telescopic grooves (20) corresponding to the clamping blocks (21), the two clamping blocks (21) are respectively slidably arranged in the two telescopic grooves (20), and the two clamping blocks (21) are connected to the inner walls of the telescopic grooves (20) through springs (22), the lower walls of the two coated sand casting mold shells (9) are provided with clamping grooves corresponding to the clamping blocks (21), the side walls of the two clamping blocks (21) away from the back plate (3) are inclined, and the two clamping blocks (21) are provided with corresponding pulling mechanisms.

3. A core making device for producing hot core castings based on coated sand according to claim 2, characterized in that: The pulling mechanism comprises two pull rods (23), the two pull rods (23) are respectively fixedly arranged on the side walls of one end of the two clamping blocks (21) close to the spring (22), and the two pull rods (23) are respectively slidably penetrated through the lower wall of the mounting seat (6), and the ends of the two pull rods (23) away from the clamping blocks (21) are fixedly connected with a pull handle (19).

4. A core making device for producing hot core castings based on coated sand according to claim 1, characterized in that: The inner mold clamping mechanism comprises two clamping plates (24), and the two clamping plates (24) are slidably arranged on the back plate (3) through a slider (25). The back plate (3) is provided with a sliding groove (14) corresponding to the two sliders (25). The sliding groove (14) is arranged between the two sliding grooves (4). A control mechanism corresponding to the two clamping plates (24) is arranged in the sliding groove (14). An opening corresponding to the inner mold is arranged at one end of the two coated sand casting mold shells (9) close to the back plate (3).

5. A core making device for producing hot core castings based on coated sand according to claim 4, characterized in that: The control mechanism comprises a first threaded rod (13), the first threaded rod (13) is rotatably arranged in a sliding groove (14), and the first threaded rod (13) is rotatably arranged to penetrate two sliding blocks (25), both of the two sliding blocks (25) are provided with threaded through holes corresponding to the first threaded rod (13), the threads at both ends of the first threaded rod (13) are arranged in opposite directions, and one end of the first threaded rod (13) is rotatably arranged to penetrate the side wall of the back plate (3) and is fixedly connected to a rotating handle (15).

6. A core making device for producing hot core castings based on coated sand according to claim 1, characterized in that: The opening and closing mechanism comprises a second threaded rod (18), the lower walls of the two mounting seats (6) are fixedly provided with connecting plates (17), a motor (16) is fixedly provided on the base (1), the second threaded rod (18) is fixedly provided at the output end of the motor (16), the second threaded rod (18) is rotatably passed through the two connecting plates (17), the two connecting plates (17) are provided with threaded through holes corresponding to the second threaded rod (18), and the threads at both ends of the second threaded rod (18) are arranged in opposite directions.

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