A casting sand mold forming device

Abstract

The application belongs to the technical field of casting, and particularly relates to a casting sand mold forming device, which comprises a supporting frame, a mold bottom plate is fixedly installed on the upper end surface of the supporting frame, a fixed support is installed on the upper end surface of the supporting frame, a reciprocating air cylinder is installed on the end of the fixed support away from the supporting frame, an upper mold plate is installed on the telescopic end of the reciprocating air cylinder, side mold plate one and side mold plate two are slidably installed on the upper end surface of the mold bottom plate, and a forming cavity is formed between the side mold plate one, the side mold plate two and the upper mold plate. After one-time forming is completed, the upper mold plate is first moved by the telescopic end of the reciprocating air cylinder, so that the upper mold plate moves upwards, then the side mold plate one and the side mold plate two are controlled to sequentially move away from the formed sand material, and in this way, the formed sand material does not need to be pushed out or pulled down, and the problem that the protruding part on the surface of the formed sand material is peeled off due to the shear force when the sand material is directly pushed out or pulled down is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of casting, in particular to a casting sand mold forming device. BACKGROUND

[0002] Sand casting is a traditional process that uses sand as the molding material to form metal castings by making sand molds and mold cavities. Its core process includes: mold preparation → sand filling → compaction → demolding.

[0003] The prior art also proposes some solutions, such as a patent application with publication number CN222740234U discloses a sand casting mold, which belongs to the technical field of sand casting. It includes a mold plate, a sand frame is arranged above the mold plate, positioning cylinders are fixedly connected to the four corners of the outer periphery of the sand frame, a guide plate is arranged below the mold plate, a material guide frame is arranged below the guide plate and is inclined, a support rod is fixedly connected to the lower end surface of the guide plate. Through the guide plate and the material guide frame, the clay sand is discharged from one end of the material guide frame, which facilitates the collection of the overflowed clay sand by the workers, effectively controls the flow and collection of the clay sand, reduces the waste of clay sand and the unnecessary cleaning work, and improves the material utilization rate.

[0004] The above-mentioned scheme can facilitate the collection of overflowed clay sand, but there are still other problems in actual use, such as after the sand material is formed, the current mold generally takes out the formed sand by ejection or downward pulling, but if the formed sand has a complex profile, i.e., there are protrusions on the surface of the formed sand, the protruding parts are easily peeled off due to shearing force when taken out by ejection or downward pulling.

[0005] Therefore, the application provides a casting sand mold forming device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem in the background art.

[0007] The technical scheme adopted by the application to solve the technical problems is: the casting sand mold forming device comprises a support frame, a mold bottom plate is fixedly installed on the upper end surface of the support frame, a fixed support is installed on the upper end surface of the support frame, a reciprocating air cylinder is installed on the end of the fixed support away from the support frame, an upper mold plate is installed on the extension end of the reciprocating air cylinder, side mold plates one and two are slidingly installed on the upper end surface of the mold bottom plate, and a forming cavity is formed between the side mold plates one and two and the upper mold plate.

[0008] Preferably, the side wall of the upper mold plate is provided with a contact point one, the upper end surface of the support frame is provided with a contact point two through a support rod, and the contact point one and the contact point two are designed on the same vertical plane; during the up-and-down movement of the upper mold plate following the reciprocating cylinder, the contact point one and the contact point two will be in contact, and the upper end surface of the upper mold plate is provided with a feeding port; in operation, in the initial state, that is, when the upper mold plate and the lower side mold plate are not combined, the contact point one and the contact point two are not in contact, when casting is needed, the extension end of the reciprocating cylinder is controlled to move, so that the extension end drives the upper mold plate and the contact point one to move downward synchronously, when the upper mold plate is combined with the lower side mold plate one and the side mold plate two, the contact point one and the contact point two are in contact, and the contact point two transmits a contact signal to the controller, and the controller transmits sand to the cavity between the side mold plate one, the side mold plate two and the upper mold plate through an external pipeline after receiving the signal.

[0009] Preferably, the side mold plate one and the side mold plate two are designed as two, the side wall of each of the two side mold plate one is provided with an L-shaped connecting frame, the end of the L-shaped connecting frame away from the side mold plate one is provided with a toothed plate, the toothed plate is slidingly arranged on the lower end surface of the mold bottom plate, and the lower end surface of the mold bottom plate is provided with a driving unit for driving the two toothed plates away from each other; in operation, when the sand in the cavity is once formed and needs to be taken out, the driving unit on the lower end surface of the mold bottom plate is controlled to operate, so that the driving unit drives the two toothed plates away from each other, the two toothed plates drive the L-shaped connecting frames connected thereto to move, and therefore the two L-shaped connecting frames drive the side mold plate one connected thereto to move away from each other, so that the formed sand can be taken out without being directly pushed out, and the problem of peeling off the raised part due to shearing force is avoided, and the integrity of the formed sand is ensured.

[0010] Preferably, the driving unit comprises two groups of horizontal shafts, the two groups of horizontal shafts are rotatably arranged below the mold bottom plate, the outer circumferential surfaces of the two groups of horizontal shafts are fixedly provided with gear one, the two groups of gear one are meshingly connected with the two toothed plates, respectively, the upper end surface of the mold bottom plate is provided with a limiting groove one, and the L-shaped connecting frame is slidingly arranged in the limiting groove one through a limiting plate.

[0011] Preferably, the driving unit further comprises gears two, the gears two are provided in plurality and are fixedly installed at the end portions of the horizontal shafts, adjacent gears two are in meshing connection, the gears two are rotationally arranged on the side wall of the support frame, the lower end surface of the mold base plate is provided with grooves matched with the toothed plates, and one end portion of one of the horizontal shafts is connected with the motor output end; in operation, when the side mold plate one needs to be taken out, the motor drives one of the horizontal shafts to rotate, the horizontal shaft drives the gears two connected therewith to rotate, since the adjacent gears two are in meshing connection, the horizontal shaft on the other side also rotates, so that the two horizontal shafts rotate simultaneously, and in this way, the two side mold plates one can be simultaneously moved away by using one control source, and the subsequent taking out of the formed sand material is facilitated.

[0012] Preferably, the side wall of the side mold plate two is provided with a limiting square groove, the side mold plate one is slidingly arranged in the limiting square groove through a limiting frame, the limiting frame is matched with the limiting square groove in shape, the side wall of the side mold plate two is provided with a pushing unit, and the pushing unit is used to drive the side mold plate two to move away from the side of the formed sand material; in operation, when the L-shaped connecting frames on both sides drive the corresponding side mold plates one to move away from the side of the formed sand material, the two side mold plates one first move on the side wall of the side mold plate two, that is, the two side mold plates one drive the limiting frame to move along the limiting square groove, and at this time, the side mold plate two does not move.

[0013] Preferably, the pushing unit comprises a limiting support rod, the limiting support rod is slidingly arranged on the upper end surface of the mold base plate, a sliding plate is installed at the end portion of the limiting support rod, the sliding plate is slidingly arranged on the upper end surface of the mold base plate, the end portion of the sliding plate is fixedly connected with the side mold plate two, and the side walls of the two gears two are provided with limiting bosses.

[0014] Preferably, the side close to the limiting boss of the limiting support rod is in arc shape, and the side wall of the limiting boss is provided with an arc-shaped groove matched with the limiting support rod; in operation, since the side close to the limiting boss of the limiting support rod is in arc shape, the limiting boss can conveniently extrude the end portion of the limiting support rod, so that the limiting support rod drives the sliding plate to move.

[0015] Preferably, the upper end surface of the mold base plate is provided with a guide groove, the sliding plate is slidingly arranged in the guide groove, a limiting spring is fixedly installed on the groove wall of the guide groove, and the limiting spring is connected with the side wall of the sliding plate away from the groove wall of the guide groove.

[0016] Preferably, the two limiting support rods are designed on two different axes, and the end of each limiting support rod corresponds to each limiting boss; in this way, the two limiting bosses can conveniently extrude the ends of the limiting support rods at the same time, so that the two side mold plates move at the same time.

[0017] The beneficial effects of the present application are as follows:

[0018] 1. The casting sand mold forming device, when the upper mold plate is combined with the side mold plate one and the side mold plate two, the contact one and the contact two are in contact at this time, and the contact two transmits the contact signal to the controller, and the controller receives the signal and transmits the sand material to the forming cavity between the side mold plate one, the side mold plate two and the upper mold plate through the external pipeline;

[0019] Through the design of the contact one and the contact two, it can be ensured that the upper mold plate is completely combined with the side mold plate one and the side mold plate two. If the contact one does not contact the contact two after moving downward, it indicates that the upper mold plate is not combined with the side mold plate one and the side mold plate two, at which time the device should be repaired, so as to facilitate the molding of the sand material.

[0020] 2. The casting sand mold forming device, when the gear two rotates and drives the side mold plate one to move away from each other, the limiting boss moves to one side of the end of the limiting support rod at this time, when the side mold plate one moves along the limiting square groove and is completely separated from the side mold plate two, the protruding end of the limiting boss will contact the end of the limiting support rod at this time, and with the continuous rotation of the gear two, the protruding end of the limiting boss will extrude the end of the limiting support rod, so that the limiting support rod drives the sliding plate and the side mold plate two to move away from the side of the formed sand material, so as to facilitate the movement of the side mold plate one and the side mold plate two in turn, and ensure the molding rate of the sand material. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a perspective view of the present application;

[0023] Figure 2 is a structural schematic view of the upper mold plate in the present application;

[0024] Figure 3 is a structural schematic view of the mold base plate in the present application;

[0025] Figure 4 is a structural schematic view of the tooth plate in the present application;

[0026] Figure 5 is a structural schematic view of the gear one in the present application;

[0027] Figure 6 is a structural schematic view of the side mold plate two in the present application;

[0028] Figure 7 It is a structural schematic diagram of the position-limiting support rod in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the sliding plate in the present invention.

[0030] In the figure: 1. Support frame; 2. Mold base plate; 201. Side template 1; 202. Side template 2; 3. Fixed bracket; 301. Reciprocating cylinder; 4. Upper template; 5. Contact 1; 6. Contact 2; 7. L-shaped connecting frame; 8. Tooth plate; 9. Horizontal axis; 10. Gear 1; 11. Limiting groove 1; 12. Gear 2; 13. Limiting square groove; 14. Limiting frame; 15. Limiting support rod; 16. Sliding plate; 17. Limiting boss; 18. Guide groove; 19. Limiting spring. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] like Figures 1 to 8 As shown, a casting sand mold forming device according to an embodiment of the present invention includes a support frame 1, a mold base plate 2 is fixedly mounted on the upper end surface of the support frame 1, a fixed bracket 3 is mounted on the upper end surface of the support frame 1, a reciprocating cylinder 301 is mounted on the end of the fixed bracket 3 away from the support frame 1, an upper template 4 is mounted on the telescopic end of the reciprocating cylinder 301, a side template 1 201 and a side template 2 202 are slidably mounted on the upper end surface of the mold base plate 2, and a molding cavity is formed between the side template 1 201, the side template 2 202 and the upper template 4;

[0033] When working, in the initial state, refer to the attached Figure 1 As shown, at this time, a molding cavity is formed between the side template 1 201, the side template 2 202 and the upper template 4, and sand is introduced into the through hole in the middle of the upper template 4 and the cavity through an external material feeding pipe to perform sand molding;

[0034] After one-time molding is completed, the upper template 4 is first moved by the telescopic end of the reciprocating cylinder 301, so that the upper template 4 moves up, and then the side template 1 201 and the side template 2 202 are controlled to move away from the molding sand material in sequence. With this design, there is no need to eject or pull down the molding sand material, and the problem of peeling caused by the shear force on the raised parts of the molding sand material surface when directly ejecting or pulling down the sand material is avoided. By designing the lateral parting and demoulding, the sand mold is naturally released without the action of vertical external force, thereby ensuring the integrity of the complex contour.

[0035] The side wall of the upper mold plate 4 is provided with a contact point one 5, the upper end surface of the support frame 1 is provided with a contact point two 6 through a support rod, the contact point one 5 and the contact point two 6 are designed on the same vertical plane; during the up-down movement of the upper mold plate 4 following the reciprocating cylinder 301, the contact point one 5 and the contact point two 6 are in contact, and the upper end surface of the upper mold plate 4 is provided with a feeding port;

[0036] In operation, in the initial state, that is, when the upper mold plate 4 and the lower side mold plate are not combined, the contact point one 5 and the contact point two 6 are not in contact, when casting is needed, the extension end of the reciprocating cylinder 301 is controlled to move, so that the extension end drives the upper mold plate 4 and the contact point one 5 to move downward synchronously, when the upper mold plate 4 is combined with the side mold plate one 201 and the side mold plate two 202, the contact point one 5 and the contact point two 6 are just in contact, and the contact point two 6 transmits a contact signal to the controller, and the controller transmits sand to the molding cavity between the side mold plate one 201, the side mold plate two 202 and the upper mold plate 4 through an external pipeline after receiving the signal;

[0037] Through the design of the contact point one 5 and the contact point two 6, it can be ensured that the upper mold plate 4 is completely combined with the side mold plate one 201 and the side mold plate two 202, if the contact point one 5 does not contact with the contact point two 6 after moving downward, it indicates that the upper mold plate 4 is not combined with the side mold plate one 201 and the side mold plate two 202, at this time, the device should be repaired, so as to facilitate the molding of sand.

[0038] The side mold plate one 201 and the side mold plate two 202 are designed as two, the side walls of the two side mold plate one 201 are provided with L-shaped connecting frames 7, the ends of the L-shaped connecting frames 7 away from the side mold plate one 201 are provided with toothed plates 8, the toothed plates 8 are slidingly arranged on the lower end surface of the mold bottom plate 2, and the lower end surface of the mold bottom plate 2 is provided with a driving unit for driving the two toothed plates 8 away from each other;

[0039] In operation, when the sand in the cavity is formed once and needs to be taken out, the driving unit on the lower end surface of the mold bottom plate 2 is controlled to operate at this time, so that the driving unit drives the two toothed plates 8 away from each other, the two toothed plates 8 drive the L-shaped connecting frames 7 connected thereto to move respectively, so that the two L-shaped connecting frames 7 drive the side mold plate one 201 connected thereto to move away from each other, so as to avoid directly ejecting the formed sand, and avoid the problem that the raised parts are peeled off due to shearing force, and ensure the integrity of the formed sand.

[0040] The driving unit comprises two groups of horizontal shafts 9, the two groups of horizontal shafts 9 are rotationally arranged below the mold bottom plate 2, the outer circumferential surfaces of the two groups of horizontal shafts 9 are fixedly provided with gear wheels one 10, the two groups of gear wheels one 10 are respectively meshed with the two toothed plates 8, the upper end surface of the mold bottom plate 2 is provided with a limiting groove one 11, and the L-shaped connecting frame 7 is slidingly arranged in the limiting groove one 11 through a limiting plate;

[0041] In operation, by driving the horizontal shaft 9 to rotate, the horizontal shaft 9 drives the gear one 10 on the outer periphery to rotate, and the two gear ones 10 drive the toothed plates 8 engaged therewith to move, and then the two toothed plates 8 move away from each other, and since the L-shaped connecting frames 7 are slidingly arranged in the limiting grooves one 11 through the limiting plates, under the limiting of the two, the two L-shaped connecting frames 7 can move on the same axis during the movement, so as to facilitate the mutual movement away of the two side mold plates one 201, avoid the problem of deflection of the side mold plate one 201 during the movement, and be beneficial to the taking out of the formed sand material.

[0042] The driving unit further comprises a plurality of gear twos 12, which are fixedly installed at the ends of the horizontal shaft 9, are in engagement with each other, are rotatably arranged on the side wall of the support frame 1, and the lower end surface of the mold bottom plate 2 is provided with grooves matched with the toothed plates 8, and one end of the horizontal shaft 9 is connected with the motor output end;

[0043] In operation, when the side mold plate one 201 needs to be taken out, the motor drives one of the horizontal shafts 9 to rotate, and the horizontal shaft 9 drives the gear two 12 connected therewith to rotate, and since the adjacent gear twos 12 are in engagement with each other, the other horizontal shaft 9 also rotates, so that the two horizontal shafts 9 rotate at the same time, and by this design, one control source can drive the gear one 10 to rotate through the horizontal shaft 9, the gear one 10 drives the toothed plate 8 to move, and the toothed plate 8 drives the L-shaped connecting frame 7 and the side mold plate one 201 to move, so that the two side mold plates one 201 move at the same time, i.e. the two side mold plates one 201 move away from each other, which is convenient for the subsequent taking out of the formed sand material.

[0044] The side wall of the side mold plate two 202 is provided with a limiting square groove 13, the side mold plate one 201 is slidingly arranged in the limiting square groove 13 through a limiting frame 14, the limiting frame 14 is matched with the limiting square groove 13 in shape, and the side wall of the side mold plate two 202 is provided with a pushing unit for driving the side mold plate two 202 to move away from the side of the formed sand material;

[0045] In operation, when the two L-shaped connecting frames 7 drive the corresponding side mold plate one 201 to move away from the side of the formed sand material, the two side mold plates one 201 first move along the side wall of the side mold plate two 202, i.e. the two side mold plates one 201 drive the limiting frame 14 to move along the limiting square groove 13, and at this time, the side mold plate two 202 does not move;

[0046] When the side mold plate one 201 is completely separated from the side mold plate two 202, the pushing unit operates to drive the two side mold plate two 202 away from each other, so that the side mold plate one 201 moves first and the side mold plate two 202 moves later, facilitating the removal of the sand, avoiding the problem of peeling of the protruding part of the sand during direct ejection or downward pulling operation, and being beneficial to the use of the subsequent sand.

[0047] The pushing unit comprises a limiting support rod 15, the limiting support rod 15 is slidingly arranged on the upper end surface of the mold base plate 2, the end of the limiting support rod 15 is provided with a sliding plate 16, the sliding plate 16 is slidingly arranged on the upper end surface of the mold base plate 2, the end of the sliding plate 16 is fixedly connected with the side mold plate two 202, the side wall of the two gear two 12 is provided with a limiting boss 17, and the protruding part of the limiting boss 17 contacts the end of the limiting support rod 15 during the rotation of the gear two 12.

[0048] During work, the limiting boss 17 and the limiting support rod 15 are in a state of moving away from each other in the initial state, and the two are not in contact.

[0049] When the gear two 12 rotates to drive the side mold plate one 201 away from each other, the limiting boss 17 moves to the side of the end of the limiting support rod 15, and when the side mold plate one 201 moves along the limiting square groove 13 and is completely separated from the side mold plate two 202, the protruding end of the limiting boss 17 contacts the end of the limiting support rod 15, and with the continuous rotation of the gear two 12, the protruding end of the limiting boss 17 extrudes the end of the limiting support rod 15, so that the limiting support rod 15 drives the sliding plate 16 and the side mold plate two 202 to move away from the side of the formed sand, so that the side mold plate one 201 and the side mold plate two 202 move in sequence, and the forming rate of the sand is ensured.

[0050] The shape of the side of the limiting support rod 15 close to the limiting boss 17 is arc-shaped, and the side wall of the limiting boss 17 is provided with an arc-shaped groove matched with the limiting support rod 15; during work, since the shape of the side of the limiting support rod 15 close to the limiting boss 17 is arc-shaped, the limiting boss 17 extrudes the end of the limiting support rod 15, so that the limiting support rod 15 drives the sliding plate 16 to move.

[0051] The upper end surface of the mold base plate 2 is provided with a guide groove 18, the sliding plate 16 is slidingly arranged in the guide groove 18, the groove wall of the guide groove 18 is fixedly provided with a limiting spring 19, and the limiting spring 19 is connected with the side wall of the sliding plate 16 away from the groove wall of the guide groove 18.

[0052] When the end of the limiting support rod 15 is extruded by the limiting boss 17 during work, the limiting support rod 15 drives the sliding plate 16 away from the molding sand, and the sliding plate 16 extrudes the limiting spring 19 connected thereto, so that the limiting spring 19 is in a compressed state. When the molded sand is taken out and the mold plate needs to be restored to the initial state, the two gear twos 12 are controlled to reverse at this time, so that the gear twos 12 drive the limiting boss 17 away from the limiting support rod 15. At this time, the limiting spring 19 and the sliding plate 16 are no longer extruded. With the limiting boss 17 gradually moving away from the limiting support rod 15, the limiting spring 19 in the compressed state can quickly drive the sliding plate 16 and the side mold plate two 202 to return to the initial position under the elastic force. After that, the side mold plate one 201 is also convenient to move to the initial position of the side mold plate two 202 along the limiting square groove 13.

[0053] The two limiting support rods 15 are designed on two different axes, and the end of each limiting support rod 15 corresponds to each limiting boss 17. In this way, the extrusion of the two limiting bosses 17 on the end of the limiting support rod 15 can be facilitated, so that the two side mold plates one 201 can be moved simultaneously.

[0054] When working, in the initial state, referring to the accompanying drawings Figure 1 At this time, the side mold plate one 201, the side mold plate two 202 and the upper mold plate 4 form a molding cavity, and sand is poured into the through hole in the middle of the upper mold plate 4 and the cavity through the external feeding pipe for sand mold molding. After the first molding is completed, the upper mold plate 4 is moved by the extension end of the reciprocating cylinder 301, so that the upper mold plate 4 moves upward. Then the side mold plate one 201 and the side mold plate two 202 are controlled to move away from the molded sand in turn. In this way, the molded sand does not need to be pushed out or pulled down, and the problem of peeling of the protruding part of the surface of the molded sand due to the shear force when the molded sand is directly pushed out or pulled down is avoided. Through the design of the lateral parting demolding, the sand mold is naturally released without vertical external force, which ensures the integrity of the complex profile.

[0055] In the initial state, that is, the upper die plate 4 and the lower side die plate are not combined, at this time the contact one 5 and the contact two 6 are not in contact, when the casting forming is needed, at this time the extension end of the reciprocating cylinder 301 is controlled to move, and the extension end drives the upper die plate 4 and the contact one 5 to move downward synchronously, when the upper die plate 4 is combined with the side die plate one 201 and the side die plate two 202 below, at this time the contact one 5 and the contact two 6 are just in contact, and the contact two 6 will transmit the contact signal to the controller, and after the controller receives the signal, the sand is transmitted into the cavity between the side die plate one 201, the side die plate two 202 and the upper die plate 4 through the external pipeline; when the sand inside the cavity is formed once and needs to be taken out, at this time the drive unit at the lower end surface of the mold base plate 2 is controlled to operate, so that the drive unit drives the two toothed plates 8 to move away from each other, and the two toothed plates 8 drive the L-shaped connecting frames 7 connected thereto to move, so that the two L-shaped connecting frames 7 drive the side die plate one 201 connected thereto to move away from each other, so that the molded sand can be avoided to be directly pushed out, and the problem of peeling of the protruding part due to shearing force is avoided, and the integrity of the molded sand is ensured;

[0056] By driving the horizontal shaft 9 to rotate, the horizontal shaft 9 drives the gear one 10 on the outer circumferential surface thereof to rotate, and the two gear ones 10 drive the toothed plates 8 engaged therewith to move, and then the two toothed plates 8 move away from each other, and since the L-shaped connecting frames 7 are slidably arranged in the limiting grooves one 11 through the limiting plates, under the limitation of both, it can be ensured that the two L-shaped connecting frames 7 move on the same axis during movement, so that the two side die plates one 201 move away from each other, and the problem of deflection of the side die plate one 201 during movement is avoided, which is beneficial to taking out the molded sand;

[0057] When the side die plate one 201 needs to be taken out, at this time one of the horizontal shafts 9 is controlled to rotate by the motor, and the horizontal shaft 9 drives the gear two 12 connected thereto to rotate, and since the adjacent gear two 12 is engaged, the other horizontal shaft 9 will also rotate, so that the two horizontal shafts 9 rotate at the same time, and through this design, one control source can be used to drive the gear one 10 to rotate through the horizontal shaft 9, the gear one 10 drives the toothed plate 8 to move, and the toothed plate 8 drives the L-shaped connecting frame 7 and the side die plate one 201 to move, so that the two side die plates one 201 move at the same time, that is, the two side die plates one 201 can move away from each other, which is convenient for subsequent taking out of the molded sand; when the two side die plates one 201 drive the corresponding side die plate one 201 to move away from the side of the molded sand, the two side die plates one 201 will first move on the side wall of the side die plate two 202, that is, the two side die plates one 201 will drive the limiting frame 14 to move along the limiting square groove 13, at this time the side die plate two 202 will not move;

[0058] When the side mold plate one 201 is completely separated from the side mold plate two 202, the pushing unit operates to drive the two side mold plate two 202 away from each other, so that the side mold plate one 201 moves first and the side mold plate two 202 moves later, facilitating the removal of the sand, avoiding the problem that the protruding part of the sand is peeled off when directly pushed out or pulled down, and being beneficial to the use of the subsequent sand;

[0059] When the gear two 12 rotates to drive the side mold plate one 201 away from each other, the limiting boss 17 moves to one side of the end of the limiting support rod 15. When the side mold plate one 201 moves along the limiting square groove 13 and is completely separated from the side mold plate two 202, the protruding end of the limiting boss 17 contacts the end of the limiting support rod 15. With the continuous rotation of the gear two 12, the protruding end of the limiting boss 17 extrudes the end of the limiting support rod 15, so that the limiting support rod 15 drives the sliding plate 16 and the side mold plate two 202 to move away from the formed sand. Thus, the side mold plate one 201 and the side mold plate two 202 move in sequence, ensuring the forming rate of the sand. When the end of the limiting support rod 15 is extruded by the limiting boss 17, the limiting support rod 15 drives the sliding plate 16 to move away from the formed sand, and the sliding plate 16 extrudes the limiting spring 19 connected thereto, so that the limiting spring 19 is in a compressed state. When the formed sand is removed and the mold plate needs to be restored to the initial state, the two gear two 12 is reversed to drive the limiting boss 17 away from the limiting support rod 15. At this time, the limiting spring 19 and the sliding plate 16 are no longer extruded. With the limiting boss 17 gradually moving away from the limiting support rod 15, the limiting spring 19 in the compressed state can quickly drive the sliding plate 16 and the side mold plate two 202 to return to the initial position under the elastic force. Then, the side mold plate one 201 is also facilitated to move along the limiting square groove 13 to the initial position of the side mold plate two 202.

[0060] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A casting sand mold forming apparatus characterized by comprising: The utility model provides a mould is provided with support frame, the upper end surface of support frame is fixedly installed with mould bottom plate, the upper end surface of support frame is installed with fixed support, the end away from support frame of fixed support is installed with reciprocating cylinder, the telescopic end of reciprocating cylinder is installed with upper die plate, the upper end surface of mould bottom plate is installed with side die plate one and side die plate two, and the side die plate one, side die plate two and upper die plate constitute forming cavity between, the utility model discloses a mould is provided with support frame, the upper end surface of support frame is fixedly installed with mould bottom plate, the upper end surface of support frame is installed with fixed support, the end away from support frame of fixed support is installed with reciprocating cylinder, the telescopic end of reciprocating cylinder is installed with upper die plate, the upper end surface of mould bottom plate is installed with side die plate one and side die plate two, and the side die plate one, side die plate two and upper die plate constitute forming cavity between, The side wall of upper die plate is installed with contact one, the upper end surface of support frame is installed with contact two through support, and contact one and contact two are designed on the same vertical plane, contact one and contact two are contacted in the process that upper die plate follows reciprocating cylinder and moves up and down, and the upper end surface of upper die plate is provided with feeding port, Two side die plate one's side wall is installed with L type connecting frame, the end away from side die plate one of L type connecting frame is installed with toothed plate, toothed plate is slidably arranged on the lower end surface of mould bottom plate, the lower end surface of mould bottom plate is provided with drive unit, and drive unit is used to drive two toothed plates to move away from each other, The drive unit includes two groups of horizontal shafts, the two groups of horizontal shafts are rotatably arranged below the mould bottom plate, the outer circumferential surface of the two groups of horizontal shafts is fixedly installed with gear one, the two groups of gear one are respectively meshed with the two toothed plates, the upper end surface of the mould bottom plate is provided with limiting groove one, and the L type connecting frame is slidably arranged in the limiting groove one through the limiting plate, The drive unit further includes gear two, the gear two is provided with a plurality of and is respectively fixedly installed on the end of the horizontal shaft, the adjacent gear two is meshed, the gear two is rotatably arranged on the side wall of the support frame, the lower end surface of the mould bottom plate is provided with a groove matched with the toothed plate, and the end of one of the horizontal shafts is connected with the motor output end, The side wall of the side die plate two is provided with a limiting square groove, the side die plate one is slidably arranged in the limiting square groove through the limiting frame, the shape of the limiting frame is matched with the shape of the limiting square groove, the side wall of the side die plate two is provided with a pushing unit, and the pushing unit is used to drive the side die plate two to move away from one side of the formed sand material, The pushing unit includes a limiting support rod, the limiting support rod is slidably arranged on the upper end surface of the mould bottom plate, the end of the limiting support rod is installed with a sliding plate, the sliding plate is slidably arranged on the upper end surface of the mould bottom plate, the end of the sliding plate is fixedly connected with the side die plate two, the side wall of the two gear two is installed with a limiting boss, and the protruding part of the limiting boss is contacted with the end of the limiting support rod in the rotating process of the gear two.

2. A casting sand mold forming apparatus according to claim 1, characterized by: The shape of the limiting support rod close to the side of the limiting boss is arc, and the side wall of the limiting boss is provided with an arc-shaped groove matched with the limiting support rod.

3. A casting sand mould forming apparatus according to claim 2, wherein: The upper end surface of the mould bottom plate is provided with a guide groove, the sliding plate is slidably arranged in the guide groove, the groove wall of the guide groove is fixedly installed with a limiting spring, and the limiting spring is connected with the side wall of the sliding plate away from the groove wall of the guide groove.

4. A casting sand mould forming apparatus according to claim 3, wherein: The two limiting support rods are designed on two different axes, and the end of each limiting support rod corresponds to each limiting boss.

Images