Intelligent core-making machine release agent spraying device and core-making machine

Abstract

The application provides a core-making machine intelligent release agent spraying device and a core-making machine, and relates to the technical field of core-making.The core-making machine intelligent release agent spraying device comprises a rack, an upper core box assembly, an upper spraying assembly, a servo drive assembly, a lower core box assembly, a lower spraying assembly and a PLC controller.The servo drive assembly accurately drives the lower core box assembly to move under the control of the PLC controller, and the upper spraying assembly and the lower spraying assembly realize spraying under the control of the PLC controller.Because the servo drive assembly is controlled by the PLC, the spraying position of the spraying part can be determined, so that the upper spraying assembly and the lower spraying assembly complete fixed-point spraying, and the spraying assembly can realize spraying under the control of the PLC, thereby avoiding spraying in non-effective areas and saving release agent.Compared with the prior art, the core-making machine intelligent release agent spraying device provided by the application can realize fixed-point spraying, save release agent, realize spraying in effective positions, improve core-making quality and avoid sand particle sticking.

Description

Technical Field

[0001] This invention relates to the field of core-making technology, and more specifically, to an intelligent mold release agent spraying device and a core-making machine. Background Technology

[0002] Current core-making machines require the application of release agent to the upper and lower core box cavities during production. Conventional techniques typically utilize a single multi-nozzle system to complete the spraying during the relative movement of the upper and lower core boxes. This approach results in a large spray volume and continuous spraying, leading to waste as even areas that shouldn't be sprayed are coated. Furthermore, the fixed spraying area results in poor spraying quality. Spraying release agent onto the parting surface can cause sand particles to adhere, leading to abnormal mold closing. Summary of the Invention

[0003] The objectives of this invention include, for example, providing an intelligent mold release agent spraying device and a core-making machine, which can achieve point spraying, save mold release agent, and achieve spraying of effective positions, improve core-making quality, and avoid sand particle adhesion.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] In a first aspect, the present invention provides an intelligent mold release agent spraying device for a core-making machine, comprising:

[0006] frame;

[0007] The upper core box assembly is movably mounted on the upper part of the frame;

[0008] The upper spray assembly is disposed on the upper core box assembly;

[0009] A servo drive assembly is located at the lower part of the rack;

[0010] The lower core box assembly is movably disposed at the lower part of the frame and is connected to the servo drive assembly for transmission.

[0011] A lower spray assembly is disposed on the lower core box assembly;

[0012] And a PLC controller, which is communicatively connected to the servo drive component and used to control the operation of the servo drive component;

[0013] The PLC controller is also communicatively connected to the upper spray assembly and the lower spray assembly to control the upper spray assembly and the lower spray assembly to spray the release agent. The lower core box assembly is used to move linearly relative to the upper core box assembly in a first direction under the drive of the servo drive assembly, and to drive the lower spray assembly to move synchronously.

[0014] In an optional embodiment, the upper spray assembly includes an upper bracket, at least one upper nozzle, a first drive member, and a first transmission member. The upper bracket is disposed on one side of the upper core box assembly. The first transmission member is movably disposed on the upper bracket. The first drive member is drively connected to the first transmission member and is communicatively connected to the PLC controller for driving the first transmission member to move. The upper nozzle is movably disposed on the first transmission member for linear movement along a second direction under the drive of the first transmission member.

[0015] In an optional embodiment, the first driving component includes a first servo motor, the first transmission component includes a first lead screw, the first lead screw is rotatably mounted on the upper bracket, the output shaft of the first servo motor is connected to the first lead screw to drive the first lead screw to rotate, the bottom of the upper nozzle component is provided with an upper lead screw nut, the upper lead screw nut is assembled on the first lead screw and moves linearly in the second direction under the drive of the first lead screw.

[0016] In an optional embodiment, the upper nozzle component includes a first nozzle body and a first lifting component. The first lifting component is movably mounted on the first transmission component and is communicatively connected to the PLC controller. The first nozzle body is drively connected to the first lifting component and moves linearly in a third direction under the drive of the first lifting component.

[0017] In an optional implementation, the first direction, the second direction, and the third direction are perpendicular to each other.

[0018] In an optional embodiment, the lower spray assembly includes a lower support, at least one lower nozzle, a second drive member, and a second transmission member. The lower support is disposed on the lower core box assembly, and the second transmission member is movably disposed on the lower support. The second drive member is drively connected to the second transmission member and is communicatively connected to the PLC controller for driving the second transmission member to move. The lower nozzle is movably disposed on the second transmission member for linear movement along a second direction under the drive of the second transmission member.

[0019] In an optional embodiment, the second driving component includes a second servo motor, the second transmission component includes a second lead screw, the second lead screw is rotatably mounted on the lower support, the output shaft of the second servo motor is connected to the second lead screw to drive the second lead screw to rotate, and a lower lead screw nut is provided at the bottom of the lower nozzle component. The lower lead screw nut is assembled on the second lead screw and moves linearly in the second direction under the drive of the second lead screw.

[0020] In an optional embodiment, the lower nozzle component includes a second nozzle body and a second lifting component. The second lifting component is movably mounted on the second transmission component and is communicatively connected to the PLC controller. The second nozzle body is drively connected to the second lifting component and moves linearly along a third direction under the drive of the second lifting component.

[0021] In an optional embodiment, the lower core box assembly includes a lower core box body and a mobile vehicle body. The mobile vehicle body is movably disposed on the lower part of the frame and is connected to the servo drive assembly. The lower core box body is disposed on the mobile vehicle body, and the lower spray assembly is disposed on the mobile vehicle body and located on one side of the lower core box.

[0022] In an optional embodiment, the servo drive assembly includes a third servo motor and a transmission rack, the transmission rack being disposed on the moving vehicle body along a first direction, and a transmission gear being mounted on the output shaft of the third servo motor, the transmission gear meshing with the transmission rack.

[0023] Secondly, the present invention provides a core-making machine, including the aforementioned intelligent mold release agent spraying device for core-making machines.

[0024] The beneficial effects of the embodiments of the present invention include, for example:

[0025] The intelligent mold release agent spraying device for a core-making machine provided in this embodiment of the invention has a servo drive component installed at the bottom of the frame. This servo drive component precisely drives the lower core box component under the control of a PLC controller. The upper and lower spray components, under the control of the PLC controller, perform spraying or shutting down. The lower core box component, driven by the servo drive component, moves linearly relative to the upper core box component along a first direction, synchronously driving the lower spray component. During actual mold release agent spraying, the servo drive component, under the control of the PLC controller, drives the lower core box component to move linearly relative to the upper core box component along the first direction, while the lower spray component moves synchronously. Because the servo drive component is controlled by the PLC, closed-loop control of position, speed, and torque can be achieved, thereby determining the spraying position of the spray section. This allows the upper and lower spray components to complete fixed-point spraying, and the spraying of the upper and lower spray components under the control of the PLC controller avoids spraying ineffective areas, saving on the use of mold release agent. Compared with the prior art, the intelligent mold release agent spraying device for core making machine provided by the present invention can achieve fixed-point spraying, save mold release agent, and achieve spraying of effective positions, improve core making quality, and avoid sand particles sticking. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the intelligent mold release agent spraying device for the core-making machine provided by the present invention from a first-view perspective;

[0028] Figure 2 A schematic diagram of the intelligent mold release agent spraying device for the core-making machine provided by the present invention from a second perspective;

[0029] Figure 3 for Figure 2 Schematic diagram of the upper and middle spray assembly;

[0030] Figure 4 for Figure 1 A schematic diagram of the servo drive component.

[0031] Icons: 100 - Intelligent release agent spraying device for core making machine; 110 - Frame; 120 - Upper core box assembly; 130 - Upper spray assembly; 131 - Upper bracket; 132 - Upper nozzle assembly; 133 - First drive component; 134 - First transmission component; 135 - First lead screw; 136 - Synchronous belt; 1361 - Pulley; 137 - First nozzle body; 138 - Upper lead screw nut; 139 - First lifting component; 140 - Servo drive assembly; 141 - Third servo motor; 142 - Transmission rack; 150 - Lower core box assembly; 151 - Lower core box body; 152 - Moving vehicle body; 160 - Lower spray assembly; Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0037] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0038] Please refer to Figures 1 to 4 This embodiment provides an intelligent mold release agent spraying device 100 for a core-making machine, which can achieve point spraying, save mold release agent, and spray effective positions to improve core-making quality and avoid sand particles sticking.

[0039] The intelligent mold release agent spraying device 100 for core-making machines provided in this embodiment includes a frame 110, an upper core box assembly 120, an upper spray assembly 130, a servo drive assembly 140, a lower core box assembly 150, a lower spray assembly 160, and a PLC controller (not shown). The upper core box assembly 120 is movably disposed on the upper part of the frame 110; the upper spray assembly 130 is disposed on the upper core box assembly 120; the servo drive assembly 140 is disposed on the lower part of the frame 110; and the lower core box assembly 150 is movably disposed on the lower part of the frame 110 and communicates with the servo drive assembly 140. The system is dynamically connected; the lower spray assembly 160 is mounted on the lower core box assembly 150; the PLC controller is communicatively connected to the servo drive assembly 140 to control the action of the servo drive assembly 140; the PLC controller is also communicatively connected to the upper spray assembly 130 and the lower spray assembly 160 to control the upper spray assembly 130 and the lower spray assembly 160 to spray the release agent; the lower core box assembly 150 is used to move linearly relative to the upper core box assembly 120 in a first direction under the drive of the servo drive assembly 140, and to drive the lower spray assembly 160 to move synchronously.

[0040] In this embodiment, the first direction can be the front-to-back direction. Under the drive of the servo drive component 140, the lower core box component 150 and the upper core box component 120 can move relative to each other in the front-to-back direction, thereby driving the lower spray component 160 and the upper spray component 130 to move relative to each other in the front-to-back direction, thus realizing the release agent spraying operation on the upper core box component 120 and the lower core box component 150. In actual release agent spraying, under the control of the PLC controller, the servo drive component 140 drives the lower core box component 150 to move linearly relative to the upper core box component 120 in the first direction, while the lower spray component 160 moves synchronously. Since the servo drive component 140 is controlled by the PLC, it can realize closed-loop control of position, speed and torque, thereby determining the spraying position of the spraying part, so that the upper spray component 130 and the lower spray component 160 can complete fixed-point spraying. The upper spray component 130 and the lower spray component 160 can realize spraying under the control of the PLC controller, avoiding the spraying of non-effective areas and saving the use of release agent.

[0041] In this embodiment, the upper spray assembly 130 includes an upper bracket 131, at least one upper nozzle 132, a first drive 133, and a first transmission 134. The upper bracket 131 is disposed on one side of the upper core box assembly 120. The first transmission 134 is movably disposed on the upper bracket 131. The first drive 133 is drively connected to the first transmission 134 and is communicatively connected to the PLC controller to drive the first transmission 134 to move. The upper nozzle 132 is movably disposed on the first transmission 134 and is communicatively connected to the PLC controller to move linearly along a second direction under the drive of the first transmission 134.

[0042] Specifically, the first driving component 133 includes a first servo motor, and the first transmission component 134 includes a first lead screw 135. The first lead screw 135 is rotatably mounted on the upper bracket 131. The output shaft of the first servo motor is connected to the first lead screw 135 to drive the first lead screw 135 to rotate. An upper lead screw nut 138 is provided at the bottom of the upper nozzle component 132. The upper lead screw nut 138 is assembled on the first lead screw 135 and moves linearly along the second direction under the drive of the first lead screw 135. The first lead screw 135 is arranged along the second direction. The inner circumferential surface of the upper lead screw nut 138 is provided with an internal thread, and the outer circumferential surface of the first lead screw 135 is provided with an external thread. The two cooperate with each other. When the first lead screw 135 rotates, it can drive the upper lead screw nut 138 to move along the extension direction of the first lead screw 135, thereby adjusting the position of the upper nozzle component 132 in the second direction and further ensuring the spraying accuracy of the upper nozzle assembly.

[0043] In this embodiment, pulleys 1361 are provided at the ends of the output shaft of the first servo motor and the first lead screw 135. The two pulleys 1361 are connected by a synchronous belt 136. When the first servo motor rotates, the power can be transmitted through the transmission action of the pulleys 1361 and the synchronous belt 136, thereby driving the first lead screw 135 to rotate.

[0044] The upper nozzle assembly 132 includes a first nozzle body 137 and a first lifting member 139. The first lifting member 139 is movably mounted on the first transmission member 134 and is communicatively connected to the PLC controller. The first nozzle body 137 is drively connected to the first lifting member 139 and moves linearly along a third direction under the drive of the first lifting member 139. Specifically, the first nozzle body 137 is externally connected to a flexible hose, through which the release agent is supplied. The hose can deform as the first nozzle body 137 moves, which is very convenient. In addition, by setting the first lifting member 139, the first nozzle body 137 can be driven to move along a third direction, thereby further adjusting the position of the first nozzle body 137 and further improving the spraying accuracy.

[0045] In this embodiment, the first lifting member 139 can be a small cylinder or an electric push rod. The first lifting member 139 also serves to support the first nozzle body 137.

[0046] It should be noted that in this embodiment, the first direction, the second direction, and the third direction are perpendicular to each other. Specifically, the first direction can be a front-back direction, the second direction can be a left-right direction, and the third direction can be a top-bottom direction. A Cartesian coordinate system is established with the first direction as the Y-axis, the second direction as the X-axis, and the third direction as the Z-axis. The movement in the Y-axis, X-axis, and Z-axis directions is realized by the servo drive component 140, the first drive component 133, and the first lifting component 139, respectively, thereby realizing the three-dimensional adjustment of the first nozzle body 137 and further improving the spraying accuracy of the first nozzle body 137.

[0047] In this embodiment, the basic structure and principle of the lower spray assembly 160 are the same as those of the upper spray assembly 130. Specifically, the lower spray assembly 160 includes a lower support, at least one lower nozzle, a second drive member, and a second transmission member. The lower support is disposed on the lower core box assembly 150, and the second transmission member is movably disposed on the lower support. The second drive member is drively connected to the second transmission member and is communicatively connected to the PLC controller to drive the movement of the second transmission member. The lower nozzle is movably disposed on the second transmission member and is used to perform linear movement along a second direction under the drive of the second transmission member.

[0048] The second driving component includes a second servo motor, and the second transmission component includes a second lead screw. The second lead screw is rotatably mounted on the lower support. The output shaft of the second servo motor is connected to the second lead screw to drive the second lead screw to rotate. The bottom of the lower nozzle component is provided with a lower lead screw nut, which is assembled on the second lead screw and moves linearly along the second direction under the drive of the second lead screw.

[0049] The output shaft of the second servo motor and the end of the second lead screw are both equipped with pulleys 1361. The two pulleys 1361 are connected by a synchronous belt 136. When the second servo motor rotates, the power can be transmitted through the transmission action of the pulleys 1361 and the synchronous belt 136, thereby driving the second lead screw to rotate.

[0050] It should be noted that in this embodiment, the second lead screw is also arranged along the second direction, that is, the second lead screw and the first lead screw 135 are respectively located on the upper and lower sides and are parallel to each other.

[0051] The lower nozzle assembly includes a second nozzle body and a second lifting component. The second lifting component is movably mounted on a second transmission component and is communicatively connected to a PLC controller. The second nozzle body is drively connected to the second lifting component and moves linearly in a third direction under the drive of the second lifting component. Specifically, the second lifting component can also be a small cylinder or an electric push rod.

[0052] It should be noted that in this embodiment, the servo drive component 140, the second drive component, and the second lifting component can respectively realize the movement of the second nozzle body in the Y-axis, X-axis, and Z-axis directions, thereby adjusting the second nozzle body to a preset position and improving its spraying accuracy.

[0053] In this embodiment, both the first nozzle body 137 and the second nozzle body are equipped with a spraying switch valve. The spraying switch valve is connected to the PLC controller, and the PLC controller is responsible for starting the first nozzle body 137 and the second nozzle body. This avoids spraying when the first nozzle body 137 and the second nozzle body are not properly adjusted, thus improving spraying accuracy and avoiding waste of release agent.

[0054] It should be noted that in this embodiment, there is only one upper nozzle component 132 and one lower nozzle component, which can achieve precise positioning, thus corresponding one-to-one with the position of the block to be sprayed. Of course, in other preferred embodiments of the present invention, there can also be multiple upper nozzle components 132 and multiple lower nozzle components. Multiple upper nozzle components 132 and multiple lower nozzle components are controlled by independent spraying switch valves. The PLC controller enables each nozzle to spray separately or simultaneously, and is linked with the servo drive component 140 below to control the spraying, so that the nozzle corresponds one-to-one with the position to be sprayed.

[0055] The lower core box assembly 150 includes a lower core box body 151 and a movable carriage 152. The movable carriage 152 is movably disposed at the lower part of the frame 110 and is connected to the servo drive assembly 140. The lower core box body 151 is disposed on the movable carriage 152, and the lower spray assembly 160 is disposed on the movable carriage 152 and located on one side of the lower core box. Specifically, the movable carriage 152 is slidably disposed at the lower part of the frame 110 along a guide rail and moves in the back-and-forth direction under the drive of the servo drive assembly 140, while the lower core box body 151 is disposed on the movable carriage 152, and the upper spray assembly 130 can be used to spray the lower core box body 151.

[0056] The upper core box assembly 120 includes an upper core box body, an upper core box support, and a core box lifting mechanism (not shown). The core box lifting mechanism is mounted on the frame 110. The upper core box support is movably mounted on the upper part of the frame 110 and is drively connected to the core box lifting mechanism. The upper core box body is mounted on the bottom side of the upper core box support. Under the lifting action of the core box lifting mechanism, the upper core box body and the upper core box support can move up and down, thereby moving closer to or away from the lower core box body 151 below. The core box lifting mechanism can be a pneumatic cylinder or a hydraulic cylinder; its specific structure can be referenced from existing core-making mechanisms.

[0057] In this embodiment, the servo drive assembly 140 includes a third servo motor 141 and a transmission rack 142. The transmission rack 142 is disposed on the moving vehicle body 152 along a first direction. A transmission gear is mounted on the output shaft of the third servo motor 141, and the transmission gear meshes with the transmission rack 142. Specifically, by using the third servo motor 141, the position control is made more precise, and the gear and rack meshing method makes the transmission smoother.

[0058] This embodiment also provides a core-making machine, which includes a feeding device and the aforementioned intelligent mold release agent spraying device 100 for the core-making machine. The feeding device includes a mold release agent feeding mechanism and a core-making feeding mechanism. The mold release agent feeding mechanism is connected to the first nozzle body 137 and the second nozzle body through a pipe to realize the feeding of the mold release agent. The core-making feeding mechanism is connected to the upper core box body to realize the feeding of sand for core making.

[0059] In summary, the intelligent mold release agent spraying device 100 and the core-making machine provided in this embodiment have a servo drive component 140 installed at the lower part of the frame 110. The servo drive component 140 precisely drives the lower core box component 150 to move under the control of the PLC controller. The upper spray component 130 and the lower spray component 160 are sprayed or turned off under the control of the PLC controller. The lower core box component 150 is used to move linearly relative to the upper core box component 120 in a first direction under the drive of the servo drive component 140, and drives the lower spray component 160 to move synchronously. During actual mold release agent spraying, under the control of the PLC controller, the servo drive component 140 drives the lower core box component 150 to move linearly relative to the upper core box component 120 along the first direction, while the lower spray component 160 synchronously drives the upper core box component 136. Since the servo drive component 140 is controlled by the PLC, closed-loop control of position, speed, and torque can be achieved, thereby determining the spraying position of the spraying part. This allows the upper spray component 130 and the lower spray component 160 to complete fixed-point spraying. The upper spray component 130 and the lower spray component 160 can achieve spraying under the control of the PLC controller, avoiding spraying ineffective areas and saving mold release agent. Compared with the prior art, the intelligent mold release agent spraying device 100 for core making machines provided in this embodiment can achieve fixed-point spraying, save mold release agent, and achieve spraying of effective positions, improving core making quality and avoiding sand particle adhesion.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An intelligent mold release agent spraying device for a core-making machine, characterized in that, include: frame; The upper core box assembly is movably mounted on the upper part of the frame; The upper spray assembly is disposed on the upper core box assembly; A servo drive assembly is located at the lower part of the rack; The lower core box assembly is movably disposed at the lower part of the frame and is connected to the servo drive assembly for transmission. A lower spray assembly is disposed on the lower core box assembly; And a PLC controller, which is communicatively connected to the servo drive component and used to control the operation of the servo drive component; The PLC controller is also communicatively connected to the upper spray assembly and the lower spray assembly to control the upper spray assembly and the lower spray assembly to spray the release agent. The lower core box assembly is used to move linearly relative to the upper core box assembly in a first direction under the drive of the servo drive assembly, and to drive the lower spray assembly to move synchronously.

2. The intelligent mold release agent spraying device for core-making machines according to claim 1, characterized in that, The upper spray assembly includes an upper bracket, at least one upper nozzle, a first drive member, and a first transmission member. The upper bracket is disposed on one side of the upper core box assembly. The first transmission member is movably disposed on the upper bracket. The first drive member is connected to the first transmission member and is communicatively connected to the PLC controller to drive the first transmission member to move. The upper nozzle is movably disposed on the first transmission member and is used to move linearly along a second direction under the drive of the first transmission member.

3. The intelligent mold release agent spraying device for core-making machines according to claim 2, characterized in that, The first driving component includes a first servo motor, and the first transmission component includes a first lead screw. The first lead screw is rotatably mounted on the upper bracket. The output shaft of the first servo motor is connected to the first lead screw to drive the first lead screw to rotate. The bottom of the upper nozzle component is provided with an upper lead screw nut. The upper lead screw nut is assembled on the first lead screw and moves linearly in the second direction under the drive of the first lead screw.

4. The intelligent mold release agent spraying device for core-making machines according to claim 2, characterized in that, The upper nozzle component includes a first nozzle body and a first lifting component. The first lifting component is movably mounted on the first transmission component and is communicatively connected to the PLC controller. The first nozzle body is drively connected to the first lifting component and moves linearly along a third direction under the drive of the first lifting component.

5. The intelligent mold release agent spraying device for core-making machines according to claim 1, characterized in that, The lower spray assembly includes a lower support, at least one lower nozzle, a second drive member, and a second transmission member. The lower support is disposed on the lower core box assembly, and the second transmission member is movably disposed on the lower support. The second drive member is connected to the second transmission member and is communicatively connected to the PLC controller to drive the second transmission member to move. The lower nozzle is movably disposed on the second transmission member and is used to move linearly along a second direction under the drive of the second transmission member.

6. The intelligent mold release agent spraying device for core-making machines according to claim 5, characterized in that, The second driving component includes a second servo motor, and the second transmission component includes a second lead screw. The second lead screw is rotatably mounted on the lower support. The output shaft of the second servo motor is connected to the second lead screw to drive the second lead screw to rotate. A lower lead screw nut is provided at the bottom of the lower nozzle component. The lower lead screw nut is assembled on the second lead screw and moves linearly in the second direction under the drive of the second lead screw.

7. The intelligent mold release agent spraying device for core-making machines according to claim 5, characterized in that, The lower nozzle component includes a second nozzle body and a second lifting component. The second lifting component is movably mounted on the second transmission component and is communicatively connected to the PLC controller. The second nozzle body is drively connected to the second lifting component and moves linearly along a third direction under the drive of the second lifting component.

8. The intelligent mold release agent spraying device for core-making machines according to claim 1, characterized in that, The lower core box assembly includes a lower core box body and a mobile vehicle body. The mobile vehicle body is movably disposed on the lower part of the frame and is connected to the servo drive assembly. The lower core box body is disposed on the mobile vehicle body, and the lower spray assembly is disposed on the mobile vehicle body and located on one side of the lower core box body.

9. The intelligent mold release agent spraying device for core-making machines according to claim 8, characterized in that, The servo drive assembly includes a third servo motor and a transmission rack. The transmission rack is disposed on the moving vehicle body along a first direction. A transmission gear is mounted on the output shaft of the third servo motor, and the transmission gear meshes with the transmission rack.

10. A core-making machine, characterized in that, Includes the intelligent mold release agent spraying device for core making machines as described in any one of claims 1-9.

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