Coring table for sand core making

Abstract

The utility model discloses a core taking platform for manufacturing a sand core, which is used for locking a core box device, and the core box device comprises a sleeve frame, an upper die movably arranged on the sleeve frame, a lower die fixed in the sleeve frame, a plurality of side dies movably arranged in the circumferential direction of the lower die, and a lower core ejecting mechanism arranged on the sleeve frame, a sand core is formed in a cavity formed among the upper die, the plurality of side dies and the lower die; the coring table comprises a rack; the core box locking mechanism is mounted on the rack and is matched with the rack so as to lock the core box device; and the ejection mechanism is arranged on the rack and is used for separating the sleeve frame from the upper mold and ejecting the sand core upwards. The coring table for sand core making provided by the utility model can improve the core making efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting, and particularly relates to a core-taking table for core-making of sand cores. Background Art

[0002] Today, with the increasingly fierce competition in casting products, the development of new casting products can effectively enhance market competitiveness, improve customer satisfaction, reduce costs, improve efficiency, and enhance the innovation ability of enterprises, etc.

[0003] Generally, when developing new products, there are many varieties of sand cores required, but the batch size is not large. On the premise of ensuring good quality, a short production cycle is required, and costs also need to be considered.

[0004] For the production of such small-batch and multi-variety sand cores, the general method is to use a general core box for core-making and manual core-taking. Manual core-taking has a high labor intensity and low work efficiency. And designing corresponding core-taking mechanisms for different core box devices is costly. For example, in the prior art, when using mechanical core-taking, the lifting mechanism lifts the upper mold to open the mold and simultaneously performs upward core-lifting, and then uses the lower core-lifting mechanism to eject the sand core from the mold. The processes of upward and downward core-lifting respectively require corresponding driving forces, with a complex structure and high energy consumption. Summary of the Utility Model

[0005] Based on the above problems, the purpose of the utility model is to provide a core-taking table for core-making of sand cores, which can be used for fixing and core-taking of the core box device during the core-making process of sand cores, and improve production efficiency.

[0006] In order to overcome the deficiencies of the prior art, the technical solution provided by the utility model is:

[0007] A core-taking table for core-making of sand cores is used to lock a core box device. The core box device includes a sleeve frame, an upper mold movably arranged on the sleeve frame, a lower mold fixed in the sleeve frame, a plurality of side molds movably arranged circumferentially of the lower mold, and a lower core-lifting mechanism installed on the sleeve frame. A sand core is formed in a cavity formed between the upper mold, the plurality of side molds and the lower mold. The core-taking table includes:

[0008] A frame;

[0009] A core box locking mechanism, which is installed on the frame and cooperates with the frame to lock the core box device;

[0010] An ejection mechanism, which is arranged on the frame and is used to separate the sleeve frame from the upper mold and eject the sand core upward.

[0011] In one embodiment, the frame includes a base and a support table arranged on the base, and the core box device is arranged on the support table.

[0012] In one embodiment, the lower core ejecting mechanism includes a top plate member, a first ejector rod assembly disposed on the top plate member for ejecting the sleeve frame, a second ejector rod assembly for ejecting the core, and a driving member for driving the top plate member to move up and down.

[0013] In one embodiment, the second ejector rod assembly includes a plurality of second ejector rods disposed in the middle of the top plate member. The first ejector rod assembly includes a plurality of first ejector rods disposed on the outer periphery of the second ejector rod assembly. The height of the first ejector rod is greater than that of the second ejector rod. The upper die is provided with a first through hole for the first ejector rod to pass through and a second through hole for the second ejector rod to pass through.

[0014] In one embodiment, the plurality of second ejector rods are arranged in an array.

[0015] In one embodiment, the lower core ejecting mechanism further includes a guide rod assembly. The guide rod assembly includes a plurality of guide rods disposed at the lower end of the top plate member. The base is provided with a plurality of guide sleeves matching the plurality of guide rods.

[0016] In one embodiment, the core box locking mechanism includes two upper die locking members symmetrically disposed on the support table for locking the upper die and two locking assemblies symmetrically disposed outside the base for locking the sleeve frame.

[0017] In one embodiment, the upper die locking member is an L-shaped locking block hinged to the support table.

[0018] In one embodiment, the locking assembly includes a first support member fixed to the side of the frame, a second support member hinged to the first support member, and a locking member disposed on the second support member;

[0019] The first support member extends vertically upward. The second support member includes a first support portion hinged to the first support member and a second support portion connected to the first support portion at a right angle. The second support portion extends toward the middle of the frame. The locking member is disposed at the end of the second support member.

[0020] In one embodiment, the locking member is threadedly connected to the second support portion and abuts against the lower core ejecting mechanism.

[0021] Compared with the prior art, the advantages of the present utility model are:

[0022] 1. After the core-making process is completed, the core box device can be locked through this core-taking platform. The sleeve frame is ejected by the cooperation of the lower core-ejecting mechanism and the ejecting mechanism, and the core is left on the upper mold. Then, the core is ejected by the ejecting mechanism, which facilitates the fixture to take out the core. This core-taking platform improves the efficiency of core production, reduces labor intensity, and only requires one power source to complete core-taking.

[0023] 2. The ejecting mechanism can stably eject the sleeve frame and the core, which is convenient for the fixture to pick up, and has good stability.

[0024] 3. The core box locking mechanism can lock the upper mold and the sleeve frame respectively, improving the structural stability during the core production process.

[0025] 4. This core-taking platform can complete the core-taking of the core with only one power source. Compared with the prior art that uses the upper and lower core-ejecting mechanisms to achieve core-taking, it has a simple structure and low energy consumption. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. The drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic structural diagram of an embodiment of the core-taking platform for core production of the present invention;

[0028] Figure 2 It is a partial structural schematic diagram of the ejecting mechanism in the embodiment of the present invention;

[0029] Figure 3 It is a schematic structural diagram of the use state when the core box device is locked on the core-taking platform in the embodiment of the present invention;

[0030] Figure 4 It is a schematic structural diagram of the ejecting mechanism ejecting the sleeve frame in the embodiment of the present invention;

[0031] Figure 5 It is a schematic structural diagram of the ejecting mechanism ejecting the core in the embodiment of the present invention;

[0032] Among them:

[0033] 100. Upper mold; 200. Sleeve frame; 300. Lower mold; 400. Side mold; 500. Lower core-ejecting mechanism; 600. Core;

[0034] 1. Frame; 1-1. Base; 1-2. Support platform;

[0035] 2. Ejection mechanism; 2-1. Ejector plate; 2-2. First ejector rod; 2-3. Second ejector rod; 2-4. Driving component; 2-5. Guide rod;

[0036] 3. Upper die locking parts;

[0037] 4. Locking assembly; 4-1. First supporting member; 4-2. First supporting portion; 4-3. Second supporting portion; 4-4. Locking member;

[0038] 5. Guide sleeve. DETAILED DESCRIPTION

[0039] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the utility model and are not limited to the scope of the utility model. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0040] See also Figure 1 , is a coring table for sand core making of the utility model, which is used for locking a core box device. The core box device includes a sleeve frame, an upper mold 100 movably arranged on the sleeve frame, a lower mold 300 fixed in the sleeve frame 200, a plurality of side molds 400 movably arranged around the lower mold 300, and a lower core ejector mechanism 500 installed on the sleeve frame 200. A sand core 600 is formed in a cavity formed between the upper mold 100, the plurality of side molds 400 and the lower mold 300, and the lower core ejector mechanism 500 extends into the cavity.

[0041] Specifically, the coring station includes a frame 1 , a core box locking mechanism and an ejection mechanism 2 installed on the frame 1 .

[0042] The frame 1 includes a base 1-1 and a support platform 1-2 arranged on the base 1-1. The core box device is arranged on the support platform 1-2. The support platform 1-2 includes a plurality of columns vertically arranged on the base 1-1. The upper mold 100 is placed on the plurality of columns.

[0043] The ejection mechanism 2 is arranged on the frame 1 and is used to separate the sleeve frame 200 from the upper mold 100 and eject the sand core 600 upward. Figure 2 As shown, it includes a top plate 2-1, a first push rod assembly for ejecting the sleeve 200 and a second push core assembly for ejecting the sand core 600, and a driving component 2-4 for driving the top plate 2-1 to move up and down, wherein the driving component 2-4 adopts an oil cylinder, and the top plate 2-1 is connected to the oil cylinder by transmission, and the oil cylinder drives the top plate 2-1 to move up and down, driving the first push rod assembly and the second push rod assembly to move up and down.

[0044] The second ejector rod assembly includes a plurality of second ejector rods 2-3 arranged in the middle of the top plate member 2-1. The first ejector rod assembly includes a plurality of first ejector rods 2-2 arranged on the outer periphery of the second ejector rod assembly. Among them, the height of the first ejector rod 2-2 is greater than that of the second ejector rod 2-3. Correspondingly, a first through hole for the first ejector rod 2-2 to pass through and a second through hole for the second ejector rod 2-3 to pass through are provided on the upper die 100. After the driving member 2-4 drives the top plate member 2-1 to move upward, the first ejector rod 2-2 first extends above the upper die 100 to eject the sleeve frame 200, so that the fixture can take away the sleeve frame 200. After the operator takes away the plurality of side dies 400, the driving member 2-4 drives the top plate member 2-1 to continue to move upward, and the second ejector rod ejects the core 600 on the upper die 100, so that the fixture can take away the core 600.

[0045] Preferably, the plurality of second ejector rods 2-3 are arranged in an array, and the core 600 can be stably ejected.

[0046] In order to improve the stability of the operation of the ejecting mechanism 2, the ejecting mechanism 2 further includes a guide rod assembly. Specifically, the guide rod assembly includes a plurality of guide rods 2-5 arranged at the lower end of the top plate member 2-1, and a plurality of guide sleeves 5 matching the plurality of guide rods 2-5 are provided on the base 1-1.

[0047] The core box locking mechanism is installed on the frame 1 and cooperates with the frame 1 to lock the core box device. Specifically, the core box locking mechanism includes two upper die locking members 3 symmetrically arranged on the support table 1-2 for locking the upper die 100 and two locking assemblies 4 symmetrically arranged outside the base 1-1 for locking the sleeve frame 200.

[0048] Among them, the upper die locking member 3 is an L-shaped locking block hinged on the support table 1-2. Place the upper die 100 on the support table 1-2, and rotate the upper die locking member 3 to clamp the upper die 100 on the support table 1-2.

[0049] The locking assembly 4 includes a first support member 4-1 fixed to the side of the base 1-1, a second support member hinged on the first support member 4-1, and a locking member 4-4 arranged on the second support member. Among them, the first support member 4-1 extends vertically upward. The second support member includes a first support portion 4-2 hinged to the first support member 4-1 and a second support portion 4-3 connected to the first support portion 4-2 at a right angle. The second support portion 4-3 extends toward the middle of the frame 1, and the locking member 4-4 is arranged at the end of the second support portion 4-3. When it is necessary to lock the sleeve frame 200, rotate the second support member so that the locking member 4-4 is located above the sleeve frame 200 to lock the sleeve frame 200 on the upper die 100.

[0050] Among them, the locking member 4-4 is threadedly connected to the second support portion 4-3 and abuts against the upper core pushing mechanism 500. By rotating the locking member 4-4, it abuts above the upper core pushing mechanism 500, so that the sleeve frame 200 is locked onto the upper mold 100, completing the assembly of the core box device (as Figure 3 shown).

[0051] The working principle of the present utility model is as follows:

[0052] After the production of the sand core is completed, the sleeve frame 200 of the core box device is clamped by a fixture. After the core box device as a whole is carried out of the core making machine, it is flipped 180 degrees and finally carried to the core taking table. First, rotate the upper mold locking member 3 to clamp the upper mold 100 on the support table 1-2, then open the locking hook between the upper mold 100 and the sleeve frame 200, and then rotate the second support member to make the locking member 4-4 located above the lower core pushing mechanism 500, and rotate the locking member 4-4 to make it abut against the lower core pushing mechanism 500 to complete the locking of the core box device (as Figure 3 shown). At this time, the ejection mechanism 2 is in the retracted state; the driving member 2-4 drives the top plate member 2-1 to move upward, and the first ejector rod assembly extends upward and abuts against the sleeve frame 200 to move the sleeve frame 200 upward to separate from the upper mold 100. Under the action of the lower core pushing mechanism 500, the sand core 600 is separated from the lower mold 300 (as Figure 4 shown). Loosen the locking member 4-4 and open the locking components 4 on both sides. At this time, the sleeve frame 200, the lower mold 300, and the lower core pushing mechanism 500 can be taken away by the fixture. After the worker takes away multiple side molds 400, the driving member 2-4 drives the top plate member 2-1 to continue to move upward, and the second ejector rod assembly passes through the upper mold 100 and then ejects the sand core 600 (as Figure 5 shown). The fixture takes away the sand core 600, the driving member 2-4 drives the top plate member 2-1 to reset, opens the upper mold locking member 3, and finally, the fixture takes away the upper mold 100, flips it 180°, and places it on the sleeve frame 200 beside. The worker locks the upper mold 100 and the sleeve frame 200 with a locking hook. Thus, the core taking and core box assembly during the sand core production process are completed. The fixture carries the overall core box device into the core making machine, and the next core making and core taking cycle begins.

[0053] In summary, the cooperation between the core taking table and the fixture can realize the automatic clamping of the sand core and the core box device, reduce the labor intensity of workers, and improve the efficiency of sand core production.

[0054] The above examples are only for illustrating the technical concept and features of the present utility model, and the purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly, and it cannot be used to limit the protection scope of the present utility model. Any equivalent transformation or modification made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A coring table for sand core making, which cooperates with a core box device, wherein the core box device comprises a sleeve frame, an upper die movably arranged on the sleeve frame, a lower die fixed in the sleeve frame, a plurality of side dies movably arranged in the circumference of the lower die, and a lower core ejecting mechanism installed on the sleeve frame, wherein the sand core is formed in a cavity formed between the upper die, the plurality of side dies and the lower die, and wherein the core box device comprises a sleeve frame, an upper die movably arranged on the sleeve frame, a lower die fixed in the sleeve frame, a plurality of side dies movably arranged in the circumference of the lower die, and a lower core ejecting mechanism installed on the sleeve frame, and wherein the sand core is formed in a cavity formed between the upper die, the plurality of side dies and the lower die, and wherein the core box device comprises a sleeve frame, an upper die movably arranged on the sleeve frame, a lower die fixed in the sleeve frame, a plurality of side dies The coring station comprises: frame; a core box locking mechanism, which is mounted on the frame and cooperates with the frame to lock the core box device; An ejection mechanism is arranged on the frame and is used to separate the sleeve frame from the upper mold and eject the sand core upward.

2. The coring table for sand core making according to claim 1, characterized in that: The frame comprises a base and a support platform arranged on the base, and the core box device is arranged on the support platform.

3. The coring table for sand core making according to claim 2, characterized in that: The ejection mechanism comprises an ejector plate, a first ejector rod assembly arranged on the ejector plate for ejecting the sleeve frame, a second ejector rod assembly for ejecting the sand core, and a driving component for driving the ejector plate to move up and down.

4. The coring table for sand core making according to claim 3, characterized in that: The second push rod assembly includes a plurality of second push rods arranged in the middle of the push plate, the first push rod assembly includes a plurality of first push rods arranged on the outer periphery of the second push rod assembly, the height of the first push rod is greater than that of the second push rod, and the upper mold is provided with a first through hole for the first push rod to pass through and a second through hole for the second push rod to pass through.

5. The coring table for sand core making according to claim 4, characterized in that: The plurality of second push rods are arranged in an array.

6. The coring table for sand core making according to claim 3, characterized in that: The ejection mechanism further comprises a guide rod assembly, wherein the guide rod assembly comprises a plurality of guide rods arranged at the lower end of the ejection plate, and a plurality of guide sleeves matching the plurality of guide rods are arranged on the base.

7. The coring table for sand core making according to claim 2, characterized in that: The core box locking mechanism comprises two upper die locking members symmetrically arranged on the support platform for locking the upper die and two locking assemblies symmetrically arranged on the outer side of the base for locking the sleeve frame.

8. The coring table for sand core making according to claim 7, characterized in that: The upper die locking piece is an L-shaped locking block hinged on the support platform.

9. The coring table for sand core making according to claim 8, characterized in that: The locking assembly comprises a first support member fixed to the side of the frame, a second support member hinged on the first support member, and a locking member arranged on the second support member; The first support member extends vertically upward, the second support member includes a first support portion hinged to the first support member and a second support portion connected to the first support portion at a right angle, the second support portion extends toward the middle of the frame, and the locking member is arranged at the end of the second support member.

10. The coring table for sand core making according to claim 9, characterized in that: The locking member is threadedly connected to the second supporting portion and abuts against the lower core mechanism.

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