Sand barrel core head plate moving device for a core shell machine

Abstract

The utility model relates to the technical field of shell core machine, specifically disclose a sand barrel core plate moving device for shell core machine, including fixed support frame and set up mounting frame on fixed support frame, be provided with the sliding frame between mounting frame and fixed support frame, be equipped with driver between sliding frame and fixed support frame, sliding frame slips on mounting frame through driver, the both sides top of mounting frame all is provided with guide rail, the both sides bottom of sliding frame all is provided with sliding part, and sliding part is installed in guide rail and slides on guide rail, the sand blasting equipment on the sliding frame of the utility model moves to the below of feed hopper through driver, and the feed hopper adds the coating sand to the sand blasting equipment, and the sand blasting equipment moves to the sand blasting position and carries out sand blasting, adopt the way of jointing between sliding part and guide rail and be connected, replace the driving mode of threaded lead screw, can reduce the position deviation between sand blasting mouth and mould sand inlet, improve the sand blasting effect.

Description

Technical Field

[0001] This utility model relates to the field of shell core machine technology, specifically to a sand bucket top core plate moving device for a shell core machine. Background Technology

[0002] The core-making machine is a device that uses a hot core box process to produce coated sand cores.

[0003] Currently, shell core machines generally adopt automated operation. The automatic operation of the shell core machine is as follows: turn the selector switch to the automatic position, select the program, start the switch according to the program, and operate automatically in sequence: mold closing → sand injection forward → sand injection clamping → sand injection → injection barrel release → injection barrel retraction → mold frame flipping → mold frame vibration → mold frame reset → curing → mold opening → ejector core rod out → core connection → ejector core rod in → mold closing.

[0004] The so-called core shooting machine carriage refers to the integral structure formed by connecting the mold opening frame and the sand shooting frame. The mold is located below the core shooting machine. In order to facilitate the core shooting machine to accurately carry out sand shooting and mold opening work, the carriage needs to move back and forth. After moving to the top of the mold, it stops moving and then begins to align with the mold for sand shooting or mold opening.

[0005] Application publication number CN117798344A discloses a moving drive device for a shell-type core shooter. This drive device uses the cooperation between a sliding gear and an auxiliary rack to move the moving module, achieving filling and spraying of the core shooter. Because the tooth pitch of the sliding gear and the auxiliary rack is fixed, there is a deviation between the sand injection port and the mold sand inlet during sand injection, affecting the sand injection effect. When the position of the top core plate deviates significantly from the mold position, the top core will also be obstructed, meaning the sand injection frame and mold opening frame cannot be accurately positioned, leading to inaccurate sand injection and mold opening working positions, and ultimately damaging the mold. Therefore, a sand bucket top core plate moving device for a shell core shooter is proposed to solve the above-mentioned problems. Summary of the Invention

[0006] This utility model provides a moving device for the top core plate of the sand barrel in a core-making machine, which aims to solve the technical problem in the related art where the sand barrel of the core-making machine uses a gear and rack mechanism for advancing and retreating, resulting in a deviation between the position of the sand injection port and the sand inlet of the mold, thus affecting the sand injection effect.

[0007] This utility model discloses a sand bucket top core plate moving device for a shell core machine, including a fixed support frame and an installation frame set on the fixed support frame. A sliding frame is provided between the installation frame and the fixed support frame, and a driver is provided between the sliding frame and the fixed support frame. The sliding frame slides on the installation frame via the driver.

[0008] Guide rails are provided on the upper sides of both sides of the mounting frame, and sliding components are provided on the lower sides of both sides of the sliding frame. The sliding components are mounted on the guide rails and slide on the guide rails.

[0009] Preferably, the sliding member includes a first mounting plate mounted on the sliding frame, a positioning block below the first mounting plate, fixing members on both sides of the positioning block, a rotating ring on the fixing member, and a first positioning groove in the middle of the positioning block.

[0010] Preferably, the positioning block is C-shaped, and the two sides of the positioning block have inclined surfaces, so that the fixing members on both sides of the positioning block are set at an angle relative to each other.

[0011] Preferably, a fourth roller is provided above the first positioning groove.

[0012] Preferably, the guide rail includes a second mounting plate mounted on the mounting frame and a guide post connected to the second mounting plate. The guide post is located in the first positioning groove and is coaxially arranged. The second mounting plate is convex in shape. The guide post and the positioning block are connected by a rotating ring.

[0013] Preferably, the sliding member includes a sliding block mounted on a sliding frame. The sliding block is in the shape of a "7". The sliding blocks on both sides of the sliding frame are symmetrically arranged. The sliding block has a first rolling wheel and a limiting wheel. The first rolling wheel is located above the sliding block, and the sliding block is located below the sliding block. An accommodating space is formed between the first rolling wheel and the limiting wheel.

[0014] Preferably, a second rolling wheel is located above the limiting wheel, and the second rolling wheel is located within the receiving space.

[0015] Preferably, the guide rail includes a slide rail disposed on the mounting frame. The slide rail is C-shaped, and the slide rails on both sides of the mounting frame are symmetrically arranged. The slide rail is located between the first rolling wheel and the limiting wheel and is in contact with the second rolling wheel.

[0016] Preferably, the length of the horizontal plate above the slide rail is shorter than that of the horizontal plate below the slide rail.

[0017] Preferably, the rear end of the mounting frame is provided with a limiting unit for positioning the sliding frame. The limiting unit includes a limiting plate mounted on the mounting frame, an adjusting ring connected to the limiting plate, a positioning rod on the adjusting ring, and the adjusting ring passing through the adjusting ring and the limiting plate in sequence and corresponding to the sliding frame. Beneficial effects

[0018] 1. After the sand-shooting device on the sliding frame is moved to the bottom of the feeding hopper by the driver, the feeding hopper adds coating sand to the sand-shooting device. The sand-shooting device is then moved to the sand-shooting position by the driver to perform sand-shooting. The sliding parts and guide rails are connected by a snap-fit ​​method, which replaces the gear and rack drive method. This can reduce the positional deviation between the sand-shooting port and the mold sand inlet, improve the sand-shooting effect. At the same time, this connection method is simple and quick, and easy to install or disassemble.

[0019] 2. The sliding component and guide rail can be locked together by a rotating ring between the positioning block and the guide post. Simply place the positioning block on the guide post and use the rotating ring to limit the guide post to achieve the connection between the sliding component and the guide rail. This connection method is simple, quick, and easy to install, saving time and effort.

[0020] 3. The connection between the slide rail and the sliding block is achieved in another way. The shape of the slide rail and the sliding block facilitates the subsequent processing and forming of the workpiece. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the mobile device of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of a sliding component according to a first embodiment of the present invention;

[0023] Figure 3 This is a structural schematic diagram of a first embodiment of the guide rail of this utility model;

[0024] Figure 4 This is a structural schematic diagram of the fixed support frame of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the limiting unit of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the sliding component and guide rail used in conjunction with this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the sliding component of this utility model, embodiment two;

[0028] Figure 8 This is a schematic diagram of the structure of the guide rail of this utility model;

[0029] Figure 9 This is a structural schematic diagram of Embodiment 2 of the fixing plate of this utility model.

[0030] Figure label:

[0031] 110. Fixed support frame; 120. Mounting frame; 130. Fixed base; 140. Driver; 150. Feed hopper; 160. Limiting unit; 161. Limiting plate; 162. Positioning rod; 163. Adjusting ring; 200. Sliding frame; 210. Sliding component; 220. Guide rail; 230. Positioning hole; 201. Sliding block; 202. First rolling wheel; 203. Second rolling wheel; 204. Limiting wheel; 205. Mounting groove; 211. First mounting plate; 212. Positioning block; 213. Rotating ring; 214. Fixing component; 215. Fourth rolling wheel; 216. First positioning groove; 221. Guide column; 222. Second mounting plate; 223. First mounting hole; 224. Slide rail; 225. Second mounting hole; 250. Fixing plate; 251. Adjusting rod; 300. Top core plate; 310. Lifter; 320. Ejector pin. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below, with examples of the embodiments shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention. Example 1

[0033] like Figures 1 to 5 As shown, the present invention provides a sand bucket top core plate moving device for a core-making machine, including a fixed support frame 110 and an installation frame 120 disposed on the fixed support frame 110. The fixed support frame 110 has a feed hopper 150, and a sand-shooting device is disposed on a sliding frame 200. The sliding frame 200 reciprocates on the installation frame 120 to realize feeding and sand shooting. The sliding frame 200 is disposed between the installation frame 120 and the fixed support frame 110, and a driver 140 is disposed between the sliding frame 200 and the fixed support frame 110. There is at least one driver 140, and the driver 140 can be a cylinder. The sliding frame 200 slides on the installation frame 120 via the driver 140.

[0034] Guide rails 220 are provided on the upper sides of the mounting frame 120, and sliding members 210 are provided on the lower sides of the sliding frame 200. The sliding members 210 are mounted on the guide rails 220 and slide on the guide rails 220. In detail, a fixed seat 130 is fixedly connected to the fixed support frame 110, and a driver 140 is mounted on the fixed seat 130. A mounting base connected to the telescopic end of the driver 140 is fixedly connected to the sliding frame 200, so that the driver 140 drives the sliding frame 200 to move.

[0035] Below the mounting frame 120, there is a top core plate 300 mounted on the sliding frame 200. The top core plate 300 is equipped with ejector pins 320. A lifting device 310 is installed between the top core plate 300 and the sliding frame 200. The lifting device 310 can be a lifting mechanism such as a cylinder. After the mold on the shell core machine is pressed, the ejector pins 320 on the top core plate 300 descend through the lifting device 310 to contact the mold on the shell core machine, and eject the sand core in the mold. The ejector pins 320 on the top core plate 300 are for demolding the mold in the vertical direction of the shell core machine.

[0036] In the above scheme, the sand-shooting device on the sliding frame 200 is moved to below the feed hopper 150 by the driver 140. Then, the feed hopper 150 adds coating sand to the sand-shooting device. The sand-shooting device is moved to the sand-shooting position again by the driver 140 to perform sand-shooting. The sliding part 210 and the guide rail 220 are connected by a snap-fit ​​method, which replaces the gear and rack drive method. This can reduce the positional deviation between the sand-shooting port and the mold sand inlet, improve the sand-shooting effect. At the same time, this connection method is simple and quick, and is easy to install or disassemble.

[0037] The sliding member 210 includes a first mounting plate 211 mounted on the sliding frame 200. A positioning block 212 is located below the first mounting plate 211. Specifically, the sliding frame 200 has a positioning hole 230, and the first mounting plate 211 has a mounting hole. The mounting hole and the positioning hole 230 correspond to each other and are fitted with bolts, facilitating the installation or removal of the first mounting plate 211 from the sliding frame 200. Fixing members 214 are provided on both sides of the positioning block 212. Specifically, the positioning block 212 has a groove, and the fixing members 214 are located within the groove, facilitating the installation of the fixing members 214 on the positioning block 212. The fixing member 214 is provided with a rotating ring 213, which is fixed to the positioning block 212 by the fixing member 214 and a nut. The positioning block 212 has a first positioning groove 216 in its center. Specifically, the rotating ring 213 can be a bearing, which can reduce the friction between the rotating ring 213 and the first mounting plate 211.

[0038] The positioning block 212 is C-shaped, with inclined surfaces on both sides, allowing the fixing members 214 on both sides of the positioning block 212 to be set at relative inclination. There is an installation space between the positioning block 212 and the first mounting plate 211 to facilitate the installation of the nut. A fourth rolling wheel 215 is provided above the first positioning groove 216 to reduce friction between the first positioning groove 216 and the guide post 221.

[0039] The guide rail 220 includes a second mounting plate 222 mounted on the mounting frame 120 and a guide post 221 connected to the second mounting plate 222. The guide post 221 is located in the first positioning groove 216 and is coaxially arranged. The second mounting plate 222 is convex in shape. The guide post 221 and the positioning block 212 are connected by a rotating ring 213. Specifically, the second mounting plate 222 is provided with a first mounting hole 223. A bolt is installed in the first mounting hole 223. The mounting frame 120 and the second mounting plate 222 are fixed together by bolts.

[0040] Specifically, the sliding member 210 and the guide rail 220 can be locked and fixed by the rotating ring 213 between the positioning block 212 and the guide post 221. Simply place the positioning block 212 on the guide post 221 and limit the guide post 221 with the rotating ring 213 to limit the sliding member 210 and the guide rail 220. This connection method is simple, quick, and easy to install, saving time and effort.

[0041] The rear end of the mounting frame 120 is provided with a limiting unit 160 for positioning the sliding frame 200. The limiting unit 160 includes a limiting plate 161 mounted on the mounting frame 120. An adjusting ring 163 is connected to the limiting plate 161. A positioning rod 162 is provided on the adjusting ring 163. The adjusting ring 163 passes through the adjusting ring 163 and the limiting plate 161 in sequence and corresponds to the sliding frame 200. Specifically, the positioning rod 162 is a screw and the adjusting ring 163 is a nut. A rubber pad is provided at the end of the positioning rod 162 facing the sliding frame 200, which can reduce the impact force after the sliding frame 200 comes into contact with the positioning rod 162.

[0042] In the above scheme, after the sliding frame 200 moves backward, the sliding frame 200 will contact the positioning rod 162 to limit the position of the sliding frame 200, so that the sand shooting device on the sliding frame 200 corresponds to the feed hopper 150, and avoids the sliding frame 200 moving too far, which would cause a deviation between the sand shooting device and the outlet of the feed hopper 150.

[0043] Working principle:

[0044] First, the first mounting plate 211 and the second mounting plate 222 are fixed to the sliding frame 200 and the mounting frame 120 respectively with bolts. Then, the guide post 221 is positioned in the first positioning groove 216. Finally, the rotating ring 213 is fixed to the positioning block 212 with the fastener 214, so that the rotating ring 213 and the positioning block 212 wrap around the guide post 221, thereby realizing the quick installation and fixing between the sliding member 210 and the guide rail 220.

[0045] The positioning block 212 on the sliding frame 200 is driven by the driver 140 to slide on the guide post 221. During the sliding process, the friction between the positioning block 212 and the guide post 221 is reduced by the rotating ring 213 and the fourth rolling wheel 215. Example 2

[0046] like Figures 6 to 9 As shown, the difference between this embodiment and Embodiment 1 is that the sliding member 210 includes a sliding block 201 mounted on the sliding frame 200. The sliding block 201 is in the shape of a "7". Specifically, the sliding block 201 is mounted on the sliding frame 200 by bolts. The positioning hole 230 is a strip-shaped hole, and the bolt is located in the positioning hole 230. The positioning hole 230 adjusts the position of the sliding block 201 according to the position of the slide rail 224. The sliding blocks 201 on both sides of the sliding frame 200 are symmetrically arranged. The sliding block 201 has a first rolling wheel 202 and a limiting wheel 204. The first rolling wheel 202 is located above the sliding block 201, and the sliding block 201 is located below the sliding block 201. A receiving space is formed between the first rolling wheel 202 and the limiting wheel 204. The slide rail 224 and the sliding block 201 are connected to the sliding member 210 and the guide rail 220 in another way. The shape of the slide rail 224 and the sliding block 201 facilitates the subsequent processing and forming of the workpiece. Above the limiting wheel 204 is a second rolling wheel 203, which is located within the accommodating space. Specifically, the sliding block 201 has two mounting slots 205, in which the first rolling wheel 202 and the second rolling wheel 203 are rotatably mounted. The mounting slots 205 reduce the accommodating space occupied by the first rolling wheel 202 and the second rolling wheel 203. The first rolling wheel 202 and the limiting wheel 204 are vertically aligned. The limiting wheel 204 allows the sliding member 210 to be mounted on the slide rail 224, while the first rolling wheel 202, the second rolling wheel 203, and the limiting wheel 204 reduce the friction between the sliding block 201 and the slide rail 224. A fixing plate 250 is provided on the side of the sliding block 201 away from the slide rail 224 and fixed on the sliding frame 200. An adjusting rod 251 is provided on the fixing plate 250, which passes through the fixing plate 250 and contacts the sliding block 201. The adjusting rod 251 can limit the position of the sliding block 201. Specifically, the adjusting rod 251 is a threaded rod, and a nut is provided on the fixing plate 250 to cooperate with the adjusting rod 251.

[0047] The guide rail 220 includes a slide rail 224 mounted on the mounting frame 120. The slide rail 224 is C-shaped. Specifically, a second mounting hole 225 is provided below the slide rail 224. The slide rail 224 and the mounting frame 120 are fixedly connected by bolts passing through the second mounting hole 225, facilitating the installation of the slide rail 224 on the mounting frame 120. The slide rails 224 are symmetrically arranged on both sides of the mounting frame 120. The slide rails 224 are located between the first rolling wheel 202 and the limiting wheel 204 and are in contact with the second rolling wheel 203. The length of the horizontal plate above the slide rail 224 is shorter than that below the slide rail 224, so that the bolts are staggered from the horizontal plate above the slide rail 224 during installation, facilitating bolt installation.

[0048] In the above scheme, the slide rail 224 is first fixed to the mounting frame 120 with bolts. Then, the sliding block 201 is clipped onto the slide rail 224, so that the horizontal plate above the slide rail 224 is located between the first rolling wheel 202 and the limiting wheel 204. Finally, the sliding frame 200 is located on the sliding block 201. The sliding block 201 is moved to correspond with the fixed plate 250. The adjusting rod 251 makes the sliding block 201 fit tightly against the slide rail 224. At the same time, the sliding block 201 is fixed to the sliding frame 200 with bolts, thus realizing the installation between the sliding component 210 and the guide rail 220.

[0049] The sliding block 201 on the sliding frame 200 is driven by the driver 140 to slide on the slide rail 224. During the sliding process, the friction between the sliding block 201 and the slide rail 224 can be reduced by the first rolling wheel 202, the second rolling wheel 203 and the limiting wheel 204.

[0050] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 the present invention.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A core plate moving device for a sand bucket in a core-making machine, comprising a fixed support frame and a mounting frame disposed on the fixed support frame, characterized in that, A sliding frame is provided between the mounting frame and the fixed support frame, and a driver is provided between the sliding frame and the fixed support frame. The sliding frame slides on the mounting frame via the driver. Guide rails are provided on the upper sides of both sides of the mounting frame, and sliding components are provided on the lower sides of both sides of the sliding frame. The sliding components are mounted on the guide rails and slide on the guide rails.

2. The core plate moving device for the sand bucket of the core-making machine according to claim 1, characterized in that, The sliding component includes a first mounting plate mounted on a sliding frame, a positioning block below the first mounting plate, fixing components on both sides of the positioning block, a rotating ring on each fixing component, and a first positioning groove in the middle of the positioning block.

3. The core plate moving device for the sand bucket of the core-making machine according to claim 2, characterized in that, The positioning block is C-shaped, and the two sides of the positioning block have inclined surfaces, so that the fixing parts on both sides of the positioning block are set at an angle relative to each other.

4. The core plate moving device for the sand bucket of the core-making machine according to claim 3, characterized in that, A fourth rolling wheel is provided above the first positioning groove.

5. The core plate moving device for the sand bucket of the core-making machine according to claim 4, characterized in that, The guide rail includes a second mounting plate mounted on the mounting frame and a guide post connected to the second mounting plate. The guide post is located in the first positioning groove and is coaxially arranged. The second mounting plate is convex in shape. The guide post and the positioning block are connected by a rotating ring.

6. The core plate moving device for the sand bucket of the core-making machine according to claim 1, characterized in that, The sliding component includes a sliding block mounted on a sliding frame. The sliding block is in the shape of a "7". The sliding blocks on both sides of the sliding frame are symmetrically arranged. The sliding block has a first rolling wheel and a limiting wheel. The first rolling wheel is located above the sliding block, and the sliding block is located below the sliding block. An accommodating space is formed between the first rolling wheel and the limiting wheel.

7. The core plate moving device for the sand bucket of the core-making machine according to claim 6, characterized in that, Above the limiting wheel is a second rolling wheel, which is located within the accommodating space.

8. The core plate moving device for the sand bucket of the core-making machine according to claim 7, characterized in that, The guide rail includes a slide rail mounted on the mounting frame. The slide rail is C-shaped and symmetrically arranged on both sides of the mounting frame. The slide rail is located between the first rolling wheel and the limiting wheel and is in contact with the second rolling wheel.

9. The core plate moving device for the sand bucket of the core-making machine according to claim 8, characterized in that, The length of the horizontal plate above the slide rail is shorter than that of the horizontal plate below the slide rail.

10. The core plate moving device for the sand bucket of the core-making machine according to claim 1, characterized in that, The rear end of the mounting frame is provided with a limiting unit for positioning the sliding frame. The limiting unit includes a limiting plate mounted on the mounting frame, an adjusting ring connected to the limiting plate, a positioning rod on the adjusting ring, and the adjusting ring passing through the adjusting ring and the limiting plate in sequence and corresponding to the sliding frame.

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