Lateral core-pulling mechanism

Abstract

The utility model discloses a lateral core pulling mechanism. One or more lateral pulling cores are arranged according to requirements. The fixing assembly comprises a core-pulling plate and a core-pulling fixing plate which are matched with each other to fix the lateral shaft core; the guide assembly is arranged on the mold frame, is connected with the fixing assembly and is used for guiding the fixing assembly in movement; the driving assembly comprises an oil cylinder arranged on one side of the core-pulling plate, the oil cylinder is a multi-piston type oil cylinder, and the oil cylinder is connected with the core-pulling plate through a connecting assembly and used for driving the fixing assembly to reciprocate in the direction of the guiding assembly. The lateral core pulling mechanism is simple and compact in structure and small in occupied area, a single large-caliber piston oil cylinder is replaced by the small multi-piston type oil cylinder, the height size of a mold is reduced, installation is carried out under the condition that the width size of the mold is not affected, and the manufacturing cost and the production cost of the mold are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting, in particular to a lateral core pulling mechanism. Background Art

[0002] When the die-cast product parts have lateral holes, lateral core pulling can generally be achieved by driving the core pulling structure to move through a mechanical structure such as a hydraulic cylinder.

[0003] The general core pulling mechanism has the following problems:

[0004] The lateral clamping force is large, and a large core pulling force is required to pull the side core; and to increase the core pulling force, a larger cylinder is required; but because the product is small, the mold volume is small, and there is no installation space for a larger cylinder; if a larger cylinder is used, the mold volume needs to be increased, and the mold cost and the cost of die-casting production will increase relatively; and the general core pulling mechanism has a complex structure, which not only makes the assembly process cumbersome, but also has high manufacturing costs;

[0005] Therefore, the present application proposes a lateral core pulling mechanism to solve the problem of lateral forming of smaller die-cast products and the problems that can be achieved by the lateral core pulling mechanism of the mold. Utility Model Content

[0006] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a lateral core pulling mechanism.

[0007] The utility model provides a lateral core pulling mechanism, comprising a lateral core pulling, a fixing assembly, a driving assembly, a guiding assembly and a switch assembly; wherein,

[0008] The side core pulling device is provided with one or more according to the requirements;

[0009] The fixing assembly includes a core pulling plate and a core pulling fixing plate, which cooperate with each other to fix the lateral core pulling;

[0010] The guide assembly is arranged on the mold frame and connected to the fixed assembly, and is used to guide the fixed assembly in motion;

[0011] The driving assembly comprises an oil cylinder arranged on one side of the core-pulling plate, wherein the oil cylinder is a multi-piston oil cylinder, and the oil cylinder is connected to the core-pulling plate through a connecting assembly, and is used to drive the fixing assembly to reciprocate along the direction of the guide assembly;

[0012] The switch assembly is connected to the oil cylinder and is used to control the actions of the oil cylinder and the lateral core pulling.

[0013] Preferably, one end of the lateral core pulling is fixedly provided with a T-shaped limit cap; a side of the core pulling fixing plate close to the core pulling plate is provided with a stepped limit through hole corresponding to the lateral core pulling; the end of the lateral core pulling away from the T-shaped limit cap passes through the corresponding limit through hole, and the T-shaped limit cap is clamped in the internal setting of the corresponding limit through hole.

[0014] Preferably, the core-pulling fixing plate is connected to the core-pulling plate by bolts.

[0015] Preferably, the guide assembly includes guide columns symmetrically fixedly arranged on the side walls of the mold frame, and the core-pulling fixing plate and the core-pulling plate are both provided with penetrating guide holes corresponding to the guide columns, and the guide columns are arranged through the corresponding guide holes.

[0016] Preferably, the oil cylinder is arranged on a side of the core-pulling plate away from the core-pulling fixing plate through a U-shaped bracket, and both ends of one side of the opening of the U-shaped bracket are fixedly connected to the side wall of the mold frame.

[0017] Preferably, the switch assembly includes a first travel switch and a second travel switch symmetrically fixed on both sides of the top surface of the U-shaped bracket, and an L-shaped support plate is symmetrically fixed on the top surface of the core pulling plate, and a first trigger and a second trigger are fixedly provided on the two L-shaped support plates corresponding to the first travel switch and the second travel switch respectively; the first trigger triggers the first travel switch to trigger the oil cylinder to drive the lateral core pulling to enter the mold core and stop the action; the second trigger triggers the second travel switch to trigger the oil cylinder to drive the lateral core pulling to pull out of the mold core and stop the action.

[0018] Preferably, the connecting assembly includes a Haver connector and an I-shaped connecting head, and a corresponding number of T-shaped slots corresponding to the piston rod of the oil cylinder are provided on the top surface of the core-pulling plate; one end of the I-shaped connecting head is snapped into the corresponding internal setting of the T-shaped slot, and the other end is connected to the T-shaped joint fixed to the corresponding piston rod end of the oil cylinder through the Haver connector.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The lateral core pulling mechanism of the utility model has a compact and simple structure and occupies a small space, so the overall structure of the mold is small and the mold cost is low; the lateral core pulling mechanism has a simple structure, high assembly efficiency and low manufacturing cost; the multi-piston oil cylinder structure replaces the single-piston large-cylinder oil cylinder, the oil cylinder reduces the size of the mold in the height direction and increases the size in the width direction without affecting the size of the mold, and is suitable for small-sized pre-casting machines, with low die-casting cost and low die-casting cost; the action of the oil cylinder and the core pulling is controlled by the signal feedback of the travel switch.

[0021] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model.

[0022] Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 A schematic diagram of the structure of a lateral core pulling mechanism, a mold frame and a mold core after being assembled according to an embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the lateral core pulling mechanism;

[0026] Figure 3 A schematic structural diagram of a cross section of a connection component;

[0027] Figure 4 It is a schematic structural diagram of the cross section after the side core pulling is assembled;

[0028] Figure 5 is a schematic diagram of the structure of the connection components;

[0029] Numbers in the figure: 1. Lateral core pulling; 2. T-type limit cap; 3. Core pulling plate; 4. Core pulling fixing plate; 5. Limit through hole; 6. Guide column; 7. Guide hole; 8. Cylinder; 9. U-shaped bracket; 10. Haver connector; 11. I-shaped connector; 12. T-type connector; 13. T-shaped slot; 14. First travel switch; 15. Second travel switch; 16. L-type support plate; 17. First trigger; 18. Second trigger; 19. Mold frame; 20. Mold core. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] The present application discloses a lateral core pulling mechanism, wherein a mold core is arranged inside a mold frame, and the mold core is used for forming a die-cast product; a U-shaped bracket is installed on the mold frame, and an oil cylinder is fixed on the U-shaped bracket, and the oil cylinder is a multi-piston oil cylinder; the piston of the oil cylinder is connected to a core pulling plate through a Havers connector and an I-shaped connector, and the core pulling plate and the core pulling fixing plate are fixedly connected through bolts; the lateral core pulling is installed between the core pulling plate and the core pulling fixing plate through a clamping form, and is used for the core pulling forming of the side features of the die-cast product.

[0033] Please refer to Figures 1 to 5 The embodiment of the utility model provides a lateral core pulling mechanism, including a lateral core pulling 1, a fixing assembly, a driving assembly, a guiding assembly and a switch assembly; wherein,

[0034] One or more lateral core pullers 1 are provided as required, and the spacing and orientation between the lateral core pullers 1 are determined according to the actual product requirements; wherein, a T-shaped limiting cap 2 is fixedly provided at one end of the lateral core puller 1, so that it can be clamped and quickly disassembled between the core puller plate 3 and the core puller fixing plate 4;

[0035] The fixing assembly includes a core pulling plate 3 and a core pulling fixing plate 4, which cooperate with each other to fix the lateral core pulling 1; wherein the core pulling plate 3 is arranged close to the driving assembly side, and the core pulling fixing plate 4 is arranged close to the mold frame 19 side, and the core pulling plate 3 and the core pulling fixing plate 4 are fixedly connected by bolts;

[0036] A stepped limiting through hole 5 is provided on one side of the core pulling fixing plate 4 close to the core pulling plate 3 corresponding to the number of lateral core pullings 1; the end of the lateral core pulling 1 away from the T-shaped limiting cap 2 is passed through the corresponding limiting through hole 5, and the T-shaped limiting cap 2 is clamped and arranged in the internal arrangement of the corresponding limiting through hole 5, and then the core pulling plate 3 is connected and fixed to the core pulling fixing plate 4 by bolts to complete the installation and fixation of the lateral core pulling 1.

[0037] A guide assembly is provided on the mold frame 19 and connected to the fixed assembly to guide the movement of the fixed assembly;

[0038] Among them, the guide assembly includes guide columns 16 symmetrically fixed on the side walls of the mold frame 19, and the corresponding guide columns 6 on the core pulling fixing plate 4 and the core pulling plate 3 are both provided with penetrating guide holes 7. The guide columns 6 are arranged through the corresponding guide holes 7 to guide them when the driving assembly drives the fixing assembly to move.

[0039] The driving assembly includes a cylinder 8 arranged on one side of the core pulling plate 3. The cylinder 8 adopts a multi-piston cylinder. Compared with a cylinder with a single large-diameter piston, the small-volume multi-piston cylinder occupies a small space and will not increase the size of the mold in the height direction, thereby reducing the cost of the mold. Moreover, without affecting the size of the mold in the width direction, the driving force of the cylinder with multiple piston rods can also meet the requirements.

[0040] Among them, the cylinder 8 is arranged on the side of the core pulling plate 3 away from the core pulling fixing plate 4 through the U-shaped bracket 9, the two ends of the open side of the U-shaped bracket 9 are fixedly connected to the side wall of the mold frame 19, and the core pulling plate 3, the core pulling fixing plate 4 and the guide column 6 are all arranged on the inner side of the U-shaped bracket 9.

[0041] In addition, the oil cylinder 8 is connected to the core-pulling plate 3 through a connecting assembly, and is used to drive the fixed assembly to reciprocate along the direction of the guide assembly;

[0042] In a preferred embodiment, the connection assembly includes a Havers connector 10 and an I-shaped connector 11, and a T-shaped connector 12 is fixedly provided at the end of the piston rod of the oil cylinder 8;

[0043] A corresponding number of T-shaped slots 13 are provided on the top surface of the core pulling plate 3 corresponding to the piston rod of the oil cylinder 8; one end of the I-shaped connector 11 is snapped into the internal setting of the corresponding T-shaped slot 13, and the other end is connected to the T-shaped connector 12 fixed to the end of the corresponding piston rod on the oil cylinder 8 through the Havers connector 10.

[0044] Among them, the Haver connector 10 is a cylindrical connector that is connected and fixed by bolts between two semi-cylindrical arc-shaped parts; the diameter of the internal channel of this arc-shaped part is larger than the diameter of its two ends, and is used to clamp and fix the T-joint 12 and the I-shaped connector 11.

[0045] The switch assembly is electrically connected to the oil cylinder 8 and is used to control the movement of the oil cylinder 8 and further control the movement of the lateral core pulling 1 .

[0046] In a preferred embodiment, the switch assembly includes a first travel switch 14 and a second travel switch 15 symmetrically fixedly arranged on both sides of the top surface of the U-shaped bracket 9, an L-shaped support plate 16 is symmetrically fixedly arranged on the top surface of the core-pulling plate 3, and a first trigger 17 and a second trigger 18 are fixedly arranged on the two L-shaped support plates 16 corresponding to the first travel switch 14 and the second travel switch 15; the rod length of the first trigger 17 is greater than the rod length of the second trigger 18;

[0047] The first trigger 17 triggers the first travel switch 14, which is used to trigger the oil cylinder 8 to drive the lateral core pulling 1 to stop after entering the mold core 20; the second trigger 18 triggers the second travel switch 15, which is used to trigger the oil cylinder 8 to drive the lateral core pulling 1 to stop when it is pulled out of the mold core 20.

[0048] The working principle of this utility model:

[0049] During operation, the lateral core pulling device 1 is installed between the core pulling plate 3 and the core pulling fixing plate 4, and the core pulling plate 3 and the core pulling fixing plate 4 are installed on the guide column 6; one end of the I-shaped connector 11 is clamped into the inside of the corresponding T-shaped slot 13, and the other end is connected and fixed to the T-shaped connector 12 on the piston rod of the oil cylinder 8 through the Haversian connector 10;

[0050] Start the oil cylinder 8, which drives the core pulling plate 3, the core pulling fixing plate 4 and the lateral core pulling 1 to enter the mold frame 19 and the mold core 20 along the direction of the guide column 6. When the lateral core pulling 1 reaches the specified position, the first trigger 17 just triggers the first travel switch 14, sending a signal to the oil cylinder 8, and the oil cylinder 8 stops moving;

[0051] When the lateral core pulling 1 needs to be pulled out, the oil cylinder 8 is started, and the oil cylinder 8 drives the core pulling plate 3, the core pulling fixing plate 4 and the lateral core pulling 1 to move along the guide column in the direction away from the mold core 20. When the lateral core pulling 1 reaches the pulling out position, the second trigger 18 just triggers the second travel switch 15, sends a signal to the oil cylinder 8, and the oil cylinder stops moving;

[0052] The entire lateral core pulling mechanism has a simple and compact structure and occupies a small area. A small multi-piston cylinder replaces a single large-diameter piston cylinder, which reduces the height of the mold and can be installed without affecting the width of the mold, thereby reducing the manufacturing cost and production cost of the mold.

[0053] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A lateral core pulling mechanism, characterized in that: It includes a lateral core pulling assembly, a fixing assembly, a driving assembly, a guide assembly and a switch assembly; wherein, The side core pulling device is provided with one or more according to the requirements; The fixing assembly includes a core pulling plate and a core pulling fixing plate, which cooperate with each other to fix the lateral core pulling; The guide assembly is arranged on the mold frame and connected to the fixed assembly, and is used to guide the fixed assembly in motion; The driving assembly includes a cylinder arranged on one side of the core-pulling plate. The cylinder is a multi-piston cylinder. The cylinder is connected to the core-pulling plate through a connecting assembly and is used to drive the fixed assembly to reciprocate along the direction of the guide assembly.

2. The lateral core pulling mechanism according to claim 1, characterized in that: A T-shaped limit cap is fixedly provided at one end of the lateral core pulling; a stepped limit through hole is provided on the side of the core pulling fixing plate close to the core pulling plate corresponding to the lateral core pulling; the end of the lateral core pulling away from the T-shaped limit cap passes through the corresponding limit through hole, and the T-shaped limit cap is clamped in the internal setting of the corresponding limit through hole.

3. The lateral core pulling mechanism according to claim 1, characterized in that: The core-pulling fixing plate is connected to the core-pulling plate by bolts.

4. The lateral core pulling mechanism according to claim 1, characterized in that: The guide assembly includes guide pillars symmetrically fixedly arranged on the side walls of the mold frame, and the core-pulling fixing plate and the core-pulling plate are both provided with penetrating guide holes corresponding to the guide pillars, and the guide pillars are arranged through the corresponding guide holes.

5. The lateral core pulling mechanism according to claim 1, characterized in that: The oil cylinder is arranged on a side of the core-pulling plate away from the core-pulling fixing plate through a U-shaped bracket, and both ends of one side of the opening of the U-shaped bracket are fixedly connected to the side wall of the mold frame.

6. The lateral core pulling mechanism according to claim 5, characterized in that: It also includes a switch assembly, which is connected to the oil cylinder and is used to control the movement of the oil cylinder and the lateral core pulling; the switch assembly includes a first stroke switch and a second stroke switch symmetrically fixed on both sides of the top surface of the U-shaped bracket, and an L-shaped support plate is symmetrically fixed on the top surface of the core pulling plate, and a first trigger and a second trigger are fixedly provided on the two L-shaped support plates corresponding to the first stroke switch and the second stroke switch respectively; the first trigger triggers the first stroke switch to trigger the oil cylinder to drive the lateral core pulling to enter the mold core and then stop; the second trigger triggers the second stroke switch to trigger the oil cylinder to drive the lateral core pulling to stop when it is pulled out of the mold core.

7. The lateral core pulling mechanism according to claim 1, characterized in that: The connecting assembly includes a Haver connector and an I-shaped connector. A corresponding number of T-shaped slots are provided on the top surface of the core-pulling plate corresponding to the piston rod of the oil cylinder; one end of the I-shaped connector is snapped into the corresponding internal setting of the T-shaped slot, and the other end is connected to the T-shaped joint fixed to the corresponding piston rod end of the oil cylinder through the Haver connector.

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