Inorganic core shooter

Abstract

The utility model relates to the technical field of molding sand molding, in particular to an inorganic core shooter. The temperature control unit comprises a cold and hot mold temperature controller, a main supply pipeline assembly, a first liquid supply pipeline assembly and a second liquid supply pipeline assembly. The cold and hot mold temperature controller comprises an electric heating liquid temperature controller and a liquid cooling machine, and hot liquid and cold liquid generated by the electric heating liquid temperature controller and the liquid cooling machine are discharged by means of the main supply pipeline assembly. The first liquid supply pipeline assembly and the second liquid supply pipeline assembly communicate with the main supply pipeline assembly so as to supply hot liquid or cold liquid to the upper forming die and the lower forming die correspondingly. Thus, on one hand, on the basis that a temperature control system is simplified, independent temperature control over the upper forming die and the lower forming die is achieved, and the temperature rising speed and the temperature falling speed are higher; on the other hand, the temperature control system has extremely high heat energy utilization efficiency, and the pipeline arrangement difficulty and cost are effectively reduced; and on the other hand, the forming upper die and the forming lower die are more conveniently formed and manufactured, and the heating and cooling trend lines of the inner cavities are more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of molding sand molding, in particular to an inorganic core shooter. Background Art

[0002] A core shooter is a casting device mainly used for manufacturing sand cores. Its working principle is to use compressed air to inject a core sand mixture into a heated forming mold. The sand core is preheated and quickly hardened inside, and then taken out to form a sand core product with a smooth surface and accurate dimensions. Among them, the inorganic core-making process belongs to a new type of environmental protection and green casting process. Since inorganic materials are used for core-making and casting, no organic substances are emitted during the production process. Especially for metal molds, the cleaning time can be greatly reduced due to the inorganic core-making process. The main raw materials of the inorganic process include raw sand, binder, and curing agent. After being fully mixed, they are injected into the heated forming mold, and then high-temperature air is blown, and a certain temperature of the mold is maintained during the curing process to achieve dehydration and curing.

[0003] In the prior art, the temperature control processes of the forming lower mold and the forming upper mold are independent of each other. Among them, the forming lower mold is heated by means of an oil heating system or an electric heating system. Due to space limitations, an oil heating circuit cannot be designed for the forming upper mold, and it can only be heated by means of an electric heating system. Both the forming lower mold and the forming upper mold are cooled by means of a water cooling integrated device. The following problems exist in practical applications, specifically: 1) The design structure of the temperature control system is complex. A single inorganic core shooter must be equipped with an electric heating system, an electric heating system or an oil heating system, and a water cooling integrated device at the same time. In this way, not only the manufacturing cost of the inorganic core shooter remains high, but also the overall body size and total weight of the inorganic core shooter will be increased to a certain extent; 2) Whether it is an oil heating system or an electric heating system, they both have limitations. For example, the pipeline layout of the oil heating system is cumbersome and complex, and the assembly cost is extremely high. And the forming mold needs to be adapted and modified; the thermal utilization efficiency of the electric heating system is extremely low, and as the size of the forming upper mold increases, the thermal energy utilization rate drops sharply. Moreover, the addition of heating elements will inevitably cause the forming upper mold to become wider and thicker, which will, to a certain extent, limit the design flexibility of the forming upper mold; 3) It increases the design complexity and forming difficulty of the forming mold. Multiple independent oil channels and water channels need to be formed inside to allow the circulation of hot oil and hot water. Therefore, it is urgent for technical personnel to solve the above problems. Summary of the Utility Model

[0004] Therefore, in view of the above existing problems and defects, the designers of the present utility model collected relevant materials, through multi-party evaluation and consideration, and through continuous experiments and modifications by technical personnel with many years of R & D experience in this industry, finally led to the emergence of this inorganic core shooter.

[0005] To solve the above technical problems, the present utility model relates to an inorganic core shooter, which includes a main frame, a bearing chassis, a sand shooting device, a forming mold, a transporting part, and a temperature control unit. The forming mold is composed of a forming upper mold and a forming lower mold. The sand shooting device is used to shoot molding sand into the cavity of the mating forming mold, and it is borne by the main frame. The forming upper mold is also borne by the main frame and is located directly below the sand shooting device. The bearing chassis is used to support the forming lower mold, and it is straddled by the main frame. The transporting part is used to drive the forming lower mold to perform displacement movement in the front-rear direction, so as to reach the sand shooting station to mate with the forming upper mold, or to move away from the sand shooting station to reach the core removal station to remove the finished sand core, and it is borne by the bearing chassis. The temperature control unit is matched with the forming mold, and under its action, the working temperatures of the forming upper mold and the forming lower mold are regulated. The temperature control unit includes a hot and cold mold temperature controller, a total supply pipeline assembly, a first liquid supply pipeline assembly, and a second liquid supply pipeline assembly. The hot and cold mold temperature controller includes an electric heating liquid temperature controller and a cold liquid machine, and the hot liquid and cold liquid generated by each are discharged externally through the total supply pipeline assembly. The first liquid supply pipeline assembly is connected to the total supply pipeline assembly to supply hot liquid or cold liquid to the forming upper mold; while the second liquid supply pipeline assembly is connected to the total supply pipeline assembly to supply hot liquid or cold liquid to the forming lower mold.

[0006] As a further improvement of the technical solution disclosed by the present utility model, the hot and cold mold temperature controller further includes a liquid replenishing pipeline assembly and a water level sensor. The water level sensor is used to monitor the water level of the electric heating liquid temperature controller in real time. The liquid replenishing pipeline assembly is connected to both the electric heating liquid temperature controller and the cold liquid machine. When the water level of the electric heating liquid temperature controller is extremely low, the cold liquid machine replenishes the heat carrier fluid to the electric heating liquid temperature controller through the liquid replenishing pipeline assembly.

[0007] As a further improvement of the technical solution disclosed by the present utility model, the total supply pipeline assembly includes a total supply hard pipe set. The total supply hard pipe set is directly led out from the hot and cold mold temperature controller. The first liquid supply pipeline assembly includes a first hard pipe set, a first hose set, and a first quick-connect joint set. The first hard pipe set is connected to the total supply hard pipe set, and then supplies liquid to the forming upper mold through the first hose set and the first quick-connect joint set. The second liquid supply pipeline assembly includes a second hard pipe set, a second hose set, and a second quick-connect joint set. The second hard pipe set is also connected to the total supply hard pipe set, and then supplies liquid to the forming lower mold through the second hose set and the second quick-connect joint set.

[0008] As a further improvement to the disclosed technical solution of the present utility model, the total supply pipe assembly further includes a vertically arranged protective cover plate. The first liquid supply pipe assembly further includes a horizontally arranged first protective cover plate. The second liquid supply pipe assembly further includes a horizontally arranged second protective cover plate. The vertically arranged protective cover plate, the horizontally arranged first protective cover plate, and the horizontally arranged second protective cover plate are respectively used to cover and protect the total supply rigid pipe set, the first rigid pipe set, and the second rigid pipe set in a one-to-one correspondence. The vertically arranged protective cover plate takes the front side wall of the main frame as the installation base. The horizontally arranged first protective cover plate and the horizontally arranged second protective cover plate take the bearing chassis as the installation base.

[0009] As a further improvement to the disclosed technical solution of the present utility model, the total supply pipe assembly further includes a vertically arranged pipe arranging member. The first liquid supply pipe assembly further includes a horizontally arranged first pipe arranging member. The second liquid supply pipe assembly further includes a horizontally arranged second pipe arranging member. The vertically arranged pipe arranging member is used to neatly arrange the total supply rigid pipe set and is detachably fixed to the vertically arranged protective cover plate. The horizontally arranged first pipe arranging member is used to neatly arrange the first rigid pipe set and is detachably fixed to the horizontally arranged first protective cover plate. The horizontally arranged second pipe arranging member is used to neatly arrange the second rigid pipe set and is detachably fixed to the horizontally arranged second protective cover plate.

[0010] As a further improvement to the disclosed technical solution of the present utility model, the total supply rigid pipe set is formed by a plurality of total supply pipes arranged side by side. The first rigid pipe set is formed by a plurality of first rigid pipes arranged side by side. The second rigid pipe set is formed by a plurality of second rigid pipes arranged side by side. The total supply pipe, the first rigid pipe, and the second rigid pipe are all non-full-length corrugated pipes.

[0011] As a further improvement to the disclosed technical solution of the present utility model, the carrying part includes a left ball screw linear module, a right ball screw linear module, and a carrying platform. The left ball screw linear module and the right ball screw linear module are arranged side by side and both take the bearing chassis as the installation base. The carrying platform is used to directly carry the lower forming die and performs a translational movement in the front-rear direction under the coordinated drive of the left ball screw linear module and the right ball screw linear module.

[0012] As a further improvement to the disclosed technical solution of the present utility model, the carrying part further includes a photoelectric induction limit unit. The photoelectric induction limit unit includes a downward extending limit member, a front photoelectric induction component, and a rear photoelectric induction component. The downward extending limit member is detachably fixed to one side of the carrying platform. The front photoelectric induction component and the rear photoelectric induction component both take the bearing chassis as the installation base and cooperate with the downward extending limit member to respectively define the sand injection stop position and the core pulling stop position of the lower forming die.

[0013] As a further improvement of the disclosed technical solution of the present utility model, the front photoelectric induction component includes a first front photoelectric sensor and a second front photoelectric sensor. The first front photoelectric sensor and the second front photoelectric sensor are used in a group to respectively define the deceleration position when the forming lower die approaches the sand shooting station and the emergency stop position at the sand shooting station. The rear photoelectric induction component includes a first rear photoelectric sensor and a second rear photoelectric sensor. The first rear photoelectric sensor and the second rear photoelectric sensor are used in a group to respectively define the deceleration position when the forming lower die approaches the core pulling station and the emergency stop position at the core pulling station.

[0014] In the actual operation of the inorganic core shooter, in order to realize the temperature control of the forming die, a hot and cold mold temperature controller is applied, which has both the function of preparing hot liquid and the function of preparing cold liquid, and realizes the independent temperature control of the forming upper die and the forming lower die by means of the first liquid supply pipeline component and the second liquid supply pipeline component. When it is necessary to perform a heating treatment on the forming upper die and the forming lower die, the hot liquid preparation function of the hot and cold mold temperature controller is started. The electric heating liquid temperature machine uses electricity as the heat source and water as the heat carrier, and uses a circulation pump to force circulation, so as to supply the heat energy to the forming upper die and the forming lower die respectively through the first liquid supply pipeline component and the second liquid supply pipeline component, and then returns to continue heating, so on and so forth, to realize the continuous increase of heat, so that the cavity temperature of the forming upper die and the forming lower die rises rapidly, meeting the requirements of the forming temperature parameters in the process document; when it is necessary to perform a cooling treatment on the forming upper die and the forming lower die, the compressor in the cold liquid machine does work through electric energy to compress the refrigerant in the system into a high-temperature and high-pressure gas, and enters the condenser from the high-pressure exhaust port. By means of forced air flow, the refrigerant in the system is cooled into a high-temperature and high-pressure liquid, and then flows down through the filter and the throttle valve, and finally enters the evaporator. The refrigerant becomes a low-temperature and low-pressure gas to absorb the heat of the circulating water to achieve the refrigeration purpose. The refrigerant then returns to the compressor through the compressor suction port for the next cycle; the cooled cold water passes through the circulation pump and is supplied to the forming upper die and the forming lower die respectively through the first liquid supply pipeline component and the second liquid supply pipeline component, and then returns to continue cooling, so on and so forth, so that the cavity temperature of the forming upper die and the forming lower die decreases rapidly, meeting the requirements of the forming temperature parameters in the process document.

[0015] In practical applications, the inorganic core shooter disclosed by the present utility model can at least achieve the following several beneficial technical effects, specifically:

[0016] 1) The heating and cooling treatments of the forming upper die and the forming lower die can be realized by means of a single hot and cold mold temperature controller, effectively simplifying the temperature control system. It not only realizes the independent temperature control of the forming upper die and the forming lower die, but also has a faster heating speed and cooling speed, which is conducive to reducing the production time of a single sand core product, and to a certain extent reduces the overall manufacturing cost, design size and total weight of the inorganic core shooter.

[0017] 2) Compared with the designs of traditional oil heating systems and electric heating systems, the improved temperature control system has extremely high thermal energy utilization efficiency, and significantly reduces the types and quantities of pipelines required, effectively reducing the difficulty and cost of pipeline layout;

[0018] 3) The upper forming die and the lower forming die only need to form channels for circulating a single heat carrier medium, with a single type and evenly distributed around its cavity. In this way, not only the design structure of the upper forming die and the lower forming die is effectively simplified, which is conducive to forming manufacturing, but also the temperature rise and fall trend lines of the cavities of the upper forming die and the lower forming die are extremely stable, thereby effectively avoiding the occurrence of uneven cavity deformation caused by different heat absorption effects in each area, and finally ensuring the production of high-quality sand core products. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is a three-dimensional schematic diagram of the inorganic core shooter disclosed by the present invention.

[0021] Figure 2 is Figure 1 the front view of

[0022] Figure 3 is Figure 1 the side view of

[0023] Figure 4 is Figure 3 the partial enlarged view I of

[0024] Figure 5 is a three-dimensional schematic diagram of the temperature control unit in the inorganic core shooter disclosed by the present invention.

[0025] Figure 6 is Figure 5 the partial enlarged view II of

[0026] Figure 7 is Figure 5 the partial enlarged view III of

[0027] Figure 8 is Figure 5 the partial enlarged view IV of

[0028] 1 - Main frame; 2 - Bearing chassis; 3 - Sand shooting device; 4 - Molding die; 41 - Upper molding die; 42 - Lower molding die; 5 - Carrying part; 51 - Left ball screw linear module; 52 - Right ball screw linear module; 53 - Carrying platform; 54 - Photoelectric induction limit unit; 541 - Lower extension limit piece; 542 - Rear photoelectric induction component; 5421 - First rear photoelectric sensor; 5422 - Second rear photoelectric sensor; 6 - Temperature control unit; 61 - Hot and cold mold temperature controller; 62 - Total supply pipeline assembly; 621 - Total supply hard pipe set; 6211 - Total supply pipe; 622 - Vertical protective cover plate; 623 - Vertical pipe arrangement part; 63 - First liquid supply pipeline assembly; 631 - First hard pipe set; 6311 - First hard pipe; 632 - First hose set; 633 - First quick connector set; 634 - First horizontal protective cover plate; 635 - First horizontal pipe arrangement part; 64 - Second liquid supply pipeline assembly; 641 - Second hard pipe set; 6411 - Second hard pipe; 642 - Second hose set; 643 - Second quick connector set; 644 - Second horizontal protective cover plate; 645 - Second horizontal pipe arrangement part. Detailed implementation mode

[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "left", "right", "upper", "lower", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0030] The following combines specific embodiments to further elaborate on the content of the present utility model. Figure 1 、 Figure 2 、 Figure 3 The three views respectively show the three-dimensional schematic diagram, front view and side view of the inorganic core shooter disclosed by the present utility model. It can be seen that it mainly consists of a main frame 1, a bearing chassis 2, a sand shooting device 3, a molding die 4 and a carrying part 5, etc. Among them, the molding die 4 is composed of an upper molding die 41 and a lower molding die 42. The sand shooting device 3 is used to shoot molding sand into the cavity of the mating molding die 4, and it is borne by the main frame 1. The upper molding die 41 is also borne by the main frame 1 and is located directly below the sand shooting device 3. The bearing chassis 2 is used to support the lower molding die 42, and it is straddled by the main frame 1. The carrying part 5 is used to drive the lower molding die 42 to perform displacement movement along the front-rear direction to reach the sand shooting station to mate with the upper molding die 41, or to move away from the sand shooting station to reach the core removal station to remove the sand core product, and it is borne by the bearing chassis 2.

[0031] In order to meet the production rhythm of the finished sand core and improve the quality of the finished sand core, the process requirements call for rapid and precise control of the cavity temperatures of the upper forming die 41 and the lower forming die 42 during the operation process. In view of this, as a further optimization of the design structure of the above-mentioned inorganic core shooter, it is also equipped with a temperature control unit 6 (such as Figure 1 , 2 , as shown in 3). The temperature control unit 6 is matched with the forming die 4, and under its action, the working temperatures of the upper forming die 41 and the lower forming die 42 can be controlled. As shown in Figure 5 , the temperature control unit 6 mainly consists of a hot and cold mold temperature controller 61, a main supply pipeline assembly 62, a first liquid supply pipeline assembly 63, a second liquid supply pipeline assembly 64, etc. The hot and cold mold temperature controller 61 has both the functions of preparing hot liquid and cold liquid, including an electric heating liquid temperature controller and a cold liquid machine (not shown in the figure), and the hot liquid and cold liquid generated respectively are discharged through the main supply pipeline assembly 62. The first liquid supply pipeline assembly 63 is connected to the main supply pipeline assembly 62 to supply hot liquid or cold liquid to the upper forming die 41; while the second liquid supply pipeline assembly 64 is connected to the main supply pipeline assembly 62 to supply hot liquid or cold liquid to the lower forming die 42. When it is necessary to perform a heating treatment on the upper forming die 41 and the lower forming die 42, the hot liquid preparation function of the hot and cold mold temperature controller 61 is started. The electric heating liquid temperature controller uses electricity as the heat source and water as the heat carrier, and uses a circulation pump for forced circulation to supply the heat energy to the upper forming die 41 and the lower forming die 42 respectively through the first liquid supply pipeline assembly 63 and the second liquid supply pipeline assembly 64, and then returns to continue heating. This cycle repeats, realizing continuous increase in heat, so that the cavity temperatures of the upper forming die 41 and the lower forming die 42 rise rapidly, meeting the requirements of the forming temperature parameters in the process document; when it is necessary to perform a cooling treatment on the upper forming die 41 and the lower forming die 42, the compressor in the cold liquid machine does work through electric energy to compress the refrigerant in the system into a high-temperature and high-pressure gas, and enters the condenser from the high-pressure exhaust port. By means of forced air flow, the refrigerant in the system is cooled into a high-temperature and high-pressure liquid, and then flows down through the filter and throttle valve, and finally enters the evaporator. The refrigerant becomes a low-temperature and low-pressure gas to absorb the heat of the circulating water to achieve the refrigeration purpose. The refrigerant then returns to the compressor through the compressor suction port for the next cycle; the cooled cold water passes through the circulation pump and is supplied to the upper forming die 41 and the lower forming die 42 respectively through the first liquid supply pipeline assembly 63 and the second liquid supply pipeline assembly 64, and then returns to continue cooling. This cycle repeats, so that the cavity temperatures of the upper forming die 41 and the lower forming die 42 decrease rapidly, meeting the requirements of the forming temperature parameters in the process document.

[0032] In practical applications, the inorganic core shooter disclosed by the present utility model has at least achieved the following beneficial technical effects: specifically,

[0033] 1) The heating and cooling processes of the upper molding die 41 and the lower molding die 42 can be achieved by means of a single hot and cold mold temperature control machine 61. The temperature control system 6 is effectively simplified. It not only realizes independent temperature control of the upper molding die 41 and the lower molding die 42, but also has a faster heating rate and cooling rate, which is conducive to reducing the production time of a single sand core product, and to a certain extent reduces the overall manufacturing cost, design size and total weight of the inorganic core shooter;

[0034] 2) Compared with the traditional oil heating system and electric heating system designs, the improved temperature control system 6 has extremely high thermal energy utilization efficiency, and greatly reduces the types and quantities of required pipelines, effectively reducing the difficulty and cost of pipeline layout;

[0035] Here, it should be emphasized that only channels for circulating a single heat transfer medium need to be formed in the upper molding die 41 and the lower molding die 42. The types are single and evenly distributed around their cavities. In this way, not only the design structures of the upper molding die 41 and the lower molding die 42 are effectively simplified, which is conducive to molding manufacturing, but also the heating and cooling trend lines of the cavities of the upper molding die 41 and the lower molding die 42 are extremely stable, thereby effectively avoiding the occurrence of uneven cavity deformation caused by different heat influences in each area, and finally ensuring the production of high-quality sand core products.

[0036] As a further optimization of the above technical solution, the hot and cold mold temperature control machine 61 is also equipped with a liquid replenishing pipeline assembly and a water level sensor (not shown in the figure). The water level sensor is used to monitor the water level of the electric heating liquid temperature control machine in real time. The liquid replenishing pipeline assembly is connected to both the electric heating liquid temperature control machine and the cold liquid machine at the same time. When the water level of the electric heating liquid temperature control machine is extremely low, the alarm system gives an alarm prompt. At the same time, the cold liquid machine replenishes the heat transfer fluid to the electric heating liquid temperature control machine through the liquid replenishing pipeline assembly. In this way, on the one hand, the electric heating liquid temperature control machine and the cold liquid machine share the heat transfer fluid and can circulate between the two, thus effectively ensuring the utilization rate of the heat transfer fluid; on the other hand, due to being in a high operating power state for a long time, the above design can avoid the occurrence of damage to the electric heating liquid temperature control machine due to "accidental dry burning".

[0037] Furthermore, as Figure 5 、 6 shown, the total supply pipeline assembly 62 includes a total supply hard pipe set 621. The total supply hard pipe set 621 is directly led out from the hot and cold mold temperature control machine. As Figure 7 shown, the first liquid supply pipeline assembly 63 is mainly composed of a first hard pipe set 631, a first hose set 632, a first quick connector set 633, etc. The first hard pipe set 631 is connected to the total supply hard pipe set 621, and then supplies liquid to the upper molding die 41 through the first hose set 632 and the first quick connector set 633 (as Figure 5 shown). As Figure 8As shown in the figure, the second liquid supply pipeline assembly 64 is mainly composed of a second hard pipe assembly 641, a second hose assembly 642, a second quick-connect fitting assembly 643, etc. The second hard pipe assembly 641 is also connected to the main supply hard pipe assembly 621, and subsequently supplies liquid to the lower molding die 42 through the second hose assembly 642 and the second quick-connect fitting assembly 643 (as shown in Figure 5 the figure). In this way, on the one hand, on the premise of ensuring the stable supply of hot carrier fluid to the upper molding die 41 and the lower molding die 42, the main supply hard pipe assembly 621, the first liquid supply pipeline assembly 63, and the second liquid supply pipeline assembly 64 have a very simple design structure, and the pipe laying operation is more convenient; on the other hand, both the first liquid supply pipeline assembly 63 and the second liquid supply pipeline assembly 64 adopt the design concept of "combining hard and soft" (that is, combining rigid pipelines and flexible pipelines), which can more effectively meet the design structure of the inorganic core shooter and the need for flexible transformation of the operating posture.

[0038] It is known that during the working process of the inorganic core shooter, a large amount of high-temperature hot carrier fluid needs to flow through the main supply pipeline assembly 62, the first liquid supply pipeline assembly 63, and the second liquid supply pipeline assembly 64, which will inevitably make their surface temperatures extremely high. Workers are often scalded due to operation errors or accidental touches. Moreover, due to the limitations of the preparation material properties, the outer surface of the pipelines (including the main supply hard pipe assembly 621, the first hard pipe assembly 631, the first hose assembly 632, the second hard pipe assembly 641, and the second hose assembly 642) is easily damaged when subjected to external forces. In view of this, as a further optimization of the above technical solution, the temperature control unit 6 is equipped with an anti-scalding protection device. Specifically, as shown in Figure 6 、 7 、8, the main supply pipeline assembly 62 is also provided with a vertically arranged protective cover plate 622. The first liquid supply pipeline assembly 63 is also provided with a first horizontally arranged protective cover plate 634. The second liquid supply pipeline assembly 64 is also provided with a second horizontally arranged protective cover plate 644. The vertically arranged protective cover plate 622, the first horizontally arranged protective cover plate 634, and the second horizontally arranged protective cover plate 644 are all sheet metal bending parts, and each is equipped with a freely detachable cover plate. The three are respectively used to cover and protect the main supply hard pipe assembly 621, the first hard pipe assembly 631, and the second hard pipe assembly 641 one by one. The vertically arranged protective cover plate 622 takes the front side wall of the main frame 1 as the installation base. The first horizontally arranged protective cover plate 634 and the second horizontally arranged protective cover plate 644 take the bearing chassis 2 as the installation base.

[0039] For the purpose of ensuring that the pipeline layout has an excellent regular shape, thereby effectively reducing the difficulty of later maintenance and shortening the maintenance time, as a further optimization of the above technical solution, as shown in Figure 6 、 7, as shown in FIGS. 6, 7, and 8, the total supply pipe assembly 62 is further provided with a vertically arranged pipe arranging member 623. The first liquid supply pipe assembly 63 is further provided with a first horizontally arranged pipe arranging member 635. The second liquid supply pipe assembly 64 is further provided with a second horizontally arranged pipe arranging member 645. The vertically arranged pipe arranging member 623 is used to neatly arrange the total supply rigid pipe set 621, and is detachably fixed to the vertically arranged protective cover plate 622. The first horizontally arranged pipe arranging member 635 is used to neatly arrange the first rigid pipe set 631, and is detachably fixed to the first horizontally arranged protective cover plate 634. The second horizontally arranged pipe arranging member 645 is used to neatly arrange the second rigid pipe set 641, and is detachably fixed to the second horizontally arranged protective cover plate 644.

[0040] Similarly, as Figure 6 , 7 , and 8 show, the total supply rigid pipe set 621 is formed by a plurality of total supply pipes 6211 arranged side by side. The first rigid pipe set 631 is formed by a plurality of first rigid pipes 6311 arranged side by side. The second rigid pipe set 641 is formed by a plurality of second rigid pipes 6411 arranged side by side. According to common sense, whether it is the total supply pipe 6211, the first rigid pipe 6311, or the second rigid pipe 6411, when they conduct hot carrier fluid, especially in the case of alternating high and low temperatures, the length value is bound to change due to the "thermal expansion and contraction" effect, and the phenomenon of excessive flexural deformation often occurs. In view of this, as a further optimization of the above technical solution, the total supply pipe 6211, the first rigid pipe 6311, and the second rigid pipe 6411 are all preferably non-full-length corrugated pipes. The non-full-length corrugated pipe has a unique design structure. Taking a single total supply pipe 6211 as an example, at least one of the multi-segment pipes that are sequentially butted end to end to form its full length is a corrugated pipe (as Figure 6 shown). In this way, when high and low temperature hot carrier fluids are alternately filled into the total supply pipe 6211, the overall axial elongation and contraction deformation amount is compensated in real time by the corrugated pipe section, ensuring that the total supply pipe 6211 always maintains good straightness throughout the application cycle.

[0041] It is known that, according to design common sense, the carrying part 5 can adopt various design structures to realize the dragging of the forming lower die 42. However, a preferred implementation scheme with a simple design structure, easy to manufacture and implement, and good dragging stability and guiding performance is recommended here. Specifically, as Figure 2 , 3As shown in the figure, the conveying part 5 is mainly composed of a left ball screw linear module 51, a right ball screw linear module 52, a bearing table 53, etc. Among them, the left ball screw linear module 51 and the right ball screw linear module 52 are purchased parts, both of which take the bearing chassis 2 as the installation basis and are arranged side by side. The bearing table 53 is used to directly convey the lower forming die 42, and it performs a translational motion in the front-rear direction under the coordinated drive of the left ball screw linear module 51 and the right ball screw linear module 52.

[0042] For the consideration of ensuring that the conveying part 5 has excellent driving accuracy, and further ensuring that the lower forming die 42 can be accurately aligned with the upper forming die 41 and the core-pulling ejector rod, as a further optimization of the above technical solution, as Figure 4 shown in the figure, the conveying part 5 is also provided with a photoelectric induction limit unit 54. The photoelectric induction limit unit 54 includes a downward extension limit piece 541, a front photoelectric induction component (not shown in the figure), and a rear photoelectric induction component 542. The downward extension limit piece 541 is detachably fixed to one side of the bearing table 53. Both the front photoelectric induction component and the rear photoelectric induction component 542 take the bearing chassis 2 as the installation basis, and cooperate with the downward extension limit piece 541 to respectively define the sand shooting stop position and the core-pulling stop position of the lower forming die 42.

[0043] As a further refinement of the above technical solution, the front photoelectric induction component includes a first front photoelectric sensor and a second front photoelectric sensor. The first front photoelectric sensor and the second front photoelectric sensor are used in a group to respectively define the deceleration position when the lower forming die 42 approaches the sand shooting station and the emergency stop position of the sand shooting station (not shown in the figure). As Figure 4 shown in the figure, the rear photoelectric induction component 542 includes a first rear photoelectric sensor 5421 and a second rear photoelectric sensor 5422. The first rear photoelectric sensor 5421 and the second rear photoelectric sensor 5422 are used in a group to respectively define the deceleration position when the lower forming die 42 approaches the core-pulling station and the emergency stop position of the core-pulling station.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An inorganic core shooter, comprising a main frame, a bearing chassis, a sand shooting device, a forming die, a conveying part and a temperature control unit; the forming die is composed of a forming upper die and a forming lower die; the sand shooting device is used to shoot molding sand into the cavity of the forming die in the closed state, and it is borne by the main frame; the forming upper die is also borne by the main frame and is located directly below the sand shooting device; the bearing chassis is used to support the forming lower die, and it is straddled by the main frame; the conveying part is used to drive the forming lower die to perform a displacement movement in the front-rear direction so as to reach the sand shooting station to mate with the forming upper die, or to move away from the sand shooting station to reach the core removal station to remove the finished sand core, and it is borne by the bearing chassis; the temperature control unit is matched with the forming die, and under its action, the working temperatures of the forming upper die and the forming lower die are regulated, and it is characterized in that, The temperature control unit includes a hot and cold mold temperature machine, a total supply pipeline assembly, a first liquid supply pipeline assembly, and a second liquid supply pipeline assembly; the hot and cold mold temperature machine includes an electric heating liquid temperature machine and a cold liquid machine, and the hot liquid and cold liquid generated by each are discharged externally through the total supply pipeline assembly; the first liquid supply pipeline assembly is connected to the total supply pipeline assembly to supply hot liquid or cold liquid to the upper forming die; and the second liquid supply pipeline assembly is connected to the total supply pipeline assembly to supply hot liquid or cold liquid to the lower forming die.

2. The inorganic core shooter according to claim 1, wherein , the hot and cold mold temperature machine further includes a liquid replenishment pipeline assembly and a water level sensor; the water level sensor is used to monitor the water level of the electric heating liquid temperature machine in real time; the liquid replenishment pipeline assembly is connected to both the electric heating liquid temperature machine and the cold liquid machine; when the water level of the electric heating liquid temperature machine is extremely low, the cold liquid machine supplies heat carrier fluid to the electric heating liquid temperature machine through the liquid replenishment pipeline assembly.

3. The inorganic core shooter according to claim 2, characterized in that , the total supply pipeline assembly includes a total supply hard pipe set; the total supply hard pipe set is directly led out from the hot and cold mold temperature machine; the first liquid supply pipeline assembly includes a first hard pipe set, a first hose set, and a first quick connector set; the first hard pipe set is connected to the total supply hard pipe set, and then supplies liquid to the upper forming die through the first hose set and the first quick connector set; the second liquid supply pipeline assembly includes a second hard pipe set, a second hose set, and a second quick connector set; the second hard pipe set is also connected to the total supply hard pipe set, and then supplies liquid to the lower forming die through the second hose set and the second quick connector set.

4. The inorganic core shooter according to claim 3, characterized in that , the total supply pipeline assembly further includes a vertical protective cover plate; the first liquid supply pipeline assembly further includes a first horizontal protective cover plate; the second liquid supply pipeline assembly further includes a second horizontal protective cover plate; the vertical protective cover plate, the first horizontal protective cover plate, and the second horizontal protective cover plate are respectively used to cover and protect the total supply hard pipe set, the first hard pipe set, and the second hard pipe set one by one; the vertical protective cover plate takes the front side wall of the main frame as the installation base; The first horizontal protective cover plate and the second horizontal protective cover plate take the bearing bottom frame as the installation base.

5. The inorganic core shooter according to claim 4, wherein , the total supply pipeline assembly further includes a vertical pipe arranging member; the first liquid supply pipeline assembly further includes a first horizontal pipe arranging member; the second liquid supply pipeline assembly further includes a second horizontal pipe arranging member; the vertical pipe arranging member is used to neatly arrange the total supply hard pipe set and is fixed to the vertical protective cover plate in a detachable manner; the first horizontal pipe arranging member is used to neatly arrange the first hard pipe set and is fixed to the first horizontal protective cover plate in a detachable manner; the second horizontal pipe arranging member is used to neatly arrange the second hard pipe set and is fixed to the second horizontal protective cover plate in a detachable manner.

6. The inorganic core shooter according to claim 3, wherein , The total supply hard pipe set is formed by a plurality of total supply pipes arranged side by side; the first hard pipe set is formed by a plurality of first hard pipes arranged side by side; the second hard pipe set is formed by a plurality of second hard pipes arranged side by side; the total supply pipe, the first hard pipe and the second hard pipe are all non-full-length corrugated pipes.

7. The inorganic core shooter according to any one of claims 1-6, characterized in that , The carrying part includes a left ball screw linear module, a right ball screw linear module and a carrying table; the left ball screw linear module and the right ball screw linear module are arranged side by side, and both take the carrying chassis as the installation base; the carrying table is used to directly carry the lower molding die, and it performs a translational movement in the front-rear direction under the coordinated drive of the left ball screw linear module and the right ball screw linear module.

8. The inorganic core shooter according to claim 7, characterized in that , The carrying part further includes a photoelectric induction limit unit; the photoelectric induction limit unit includes a downward extension limit member, a front photoelectric induction component and a rear photoelectric induction component; the downward extension limit member is detachably fixed to one side of the carrying table; the front photoelectric induction component and the rear photoelectric induction component both take the carrying chassis as the installation base, and cooperate with the downward extension limit member to respectively define the sand shooting stop position and the core pulling stop position of the lower molding die.

9. The inorganic core shooter according to claim 8, wherein , The front photoelectric induction component includes a first front photoelectric sensor and a second front photoelectric sensor; the first front photoelectric sensor and the second front photoelectric sensor are used in a group to respectively define the deceleration position when the lower molding die approaches the sand shooting station and the emergency stop position of the sand shooting station; the rear photoelectric induction component includes a first rear photoelectric sensor and a second rear photoelectric sensor; the first rear photoelectric sensor and the second rear photoelectric sensor are used in a group to respectively define the deceleration position when the lower molding die approaches the core pulling station and the emergency stop position of the core pulling station.

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