Lower core box convenient for die assembly

Abstract

The utility model relates to the field of cold core box dies, and discloses a lower core box convenient for die assembly, which comprises a lower die and an upper die, an upper forming die is arranged on the left surface of the upper die, a lower forming die is arranged on the right surface of the lower die, the lower forming die is matched with the upper forming die, a positioning groove is arranged on the right surface of the lower die, and the positioning groove is matched with the upper forming die. A positioning mechanism is arranged on the left surface of the upper die and comprises a positioning assembly and a lubricating assembly, the positioning assembly comprises a fixing sleeve, the left end of the fixing sleeve penetrates through and is slidably connected with a sliding sleeve, the left surface of the sliding sleeve is fixedly connected with an ejector block, and the right surface of the fixing sleeve is fixedly connected with an oil storage sleeve. According to the utility model, the telescopic positioning assembly is arranged, and the sliding sleeve can be supported by using the reset spring, so that the ejector block can firstly enter the positioning groove during mold closing, positioning can be realized before the upper forming mold and the lower forming mold are in contact, and the whole device has a better positioning effect during use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cold -core box mould field especially relates to a core box of easy to close mould. BACKGROUND

[0002] The cold -core box mould is the mould of cold -core box technology, is mainly used in foundry production in manufacturing sand core, usually by upper die body and lower die body is formed, the upper and lower die body all are provided with the shape mould in the inside, and the accommodating cavity for forming sand core can be formed after butting, and then through sand shooting device can the sand is shot into the accommodating cavity of cold -core box mould.

[0003] In prior art, when closing mould, the plug rod and the slot are usually used to realize the positioning of the upper die and the lower die, however, since the upper die and the lower die need to be completely fitted around when closing mould, and the thickness of the upper die and the lower die is limited, the length of the plug rod and the depth of the slot are limited, so when closing mould, the phenomenon that the shape mould has contacted while the plug rod and the slot have not contacted occurs, which affects the positioning accuracy, therefore, the core box for easy closing mould is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides a core box for easy closing mould, which aims at improving the problem in prior art that "since the length of the plug rod and the depth of the slot are limited by the thickness of the upper die and the lower die, when closing mould, the phenomenon that the shape mould has contacted while the plug rod and the slot have not contacted occurs".

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a core box for easy closing mould, comprising a lower die and an upper die, the left surface of the upper die is provided with an upper shape mould, the right surface of the lower die is provided with a lower shape mould, the lower shape mould and the upper shape mould are matched, the right surface of the lower die is provided with a positioning slot, the left surface of the upper die is provided with a positioning mechanism, the positioning mechanism comprises a positioning assembly and a lubricating assembly, the positioning assembly comprises a fixed sleeve, the left end of the fixed sleeve penetrates and is slidably connected with a sliding sleeve, the left surface of the sliding sleeve is fixedly connected with a top block, the right surface of the fixed sleeve is fixedly connected with an oil storage sleeve, the left surface of the oil storage sleeve is fixedly connected with a return spring, and the left surface of the return spring is fixedly connected with the right end of the sliding sleeve.

[0006] Further description of the above technical scheme:

[0007] The lubricating assembly comprises an oil conveying sleeve, the left end of the oil conveying sleeve is fixedly connected with the inner wall of the sliding sleeve, and the right end of the oil conveying sleeve penetrates and is slidably connected with the inner wall of the oil storage sleeve.

[0008] Further description of the above technical scheme:

[0009] The upper surface of the oil storage sleeve is provided with an oil injection port, and the upper surface of the oil injection port is fixedly connected with an oil injection pipe.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the oil injection pipe is provided with external threads.

[0012] As a further description of the above technical solution:

[0013] The inner wall of the fixed sleeve is rotatably connected with a rotating shaft, and the outer wall of the rotating shaft is fixedly connected with a lubricating ball.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the lubricating ball is provided with grooves and a plurality of groups.

[0016] As a further description of the above technical solution:

[0017] The rotating shaft and the lubricating ball are provided with a plurality of groups, and the plurality of groups of the rotating shaft and the lubricating ball are rotatably arranged with the center line of the fixed sleeve as the rotation axis.

[0018] As a further description of the above technical solution:

[0019] The top block is provided in a conical frustum shape.

[0020] The utility model has the following beneficial effects:

[0021] 1、The utility model discloses a positioning assembly is set up, and the reset spring is used to support the sliding sleeve, so that the top block can enter the inside of the positioning groove when the mold is closed, and positioning can be realized before the upper mold and the lower mold contact, and the overall device has good positioning effect when in use.

[0022] 2、The utility model discloses a lubricating assembly is set up, and when the sliding sleeve moves left and right in the inside of the positioning groove, the lubricating ball outside the sliding sleeve can rub the inner wall of the positioning groove and rotate, so that the lubricating oil in the fixed sleeve can be coated on the inner wall of the positioning groove, and the lubricating effect can be achieved, and the smoothness of positioning is ensured. DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of the overall device in the utility model;

[0024] Figure 2 It is the three-dimensional structure side view schematic diagram of the upper mold in the utility model;

[0025] Figure 3 It is the three-dimensional structure cross section schematic diagram of the positioning mechanism in the utility model;

[0026] Figure 4 For the utility model Figure 3 The enlarged schematic view of the stereoscopic structure of part A.

[0027] Legend:

[0028] 1, upper die; 2, lower die; 3, lower shape die; 4, positioning groove; 5, positioning mechanism; 51, fixed sleeve; 52, sliding sleeve; 53, top block; 54, oil storage sleeve; 55, oil delivery sleeve; 56, return spring; 57, oil injection port; 58, oil injection pipe; 59, external thread; 510, rotating shaft; 511, lubricating ball; 512, groove; 6, upper shape die. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] With reference to Figure 1 - Figure 3 An embodiment provided by the utility model: a core box with lower core box, which comprises a lower die 2 and an upper die 1 for supporting the overall device, the left surface of the upper die 1 is provided with an upper shape die 6, the right surface of the lower die 2 is provided with a lower shape die 3, the lower shape die 3 and the upper shape die 6 are matched, when the upper die 2 and the lower die 1 are spliced, the upper shape die 6 and the lower shape die 3 will form a containing cavity, the right surface of the lower die 2 is provided with a positioning groove 4 for clearly and correctly positioning the die position, the left surface of the upper die 1 is provided with a positioning mechanism 5 for positioning the insertion position of the upper die 1, the positioning mechanism 5 comprises a positioning assembly and a lubricating assembly, the positioning assembly comprises a fixed sleeve 51 for supporting, the left end of the fixed sleeve 51 is penetrated and slidably connected with a sliding sleeve 52 for supporting a top block 53, the left surface of the sliding sleeve 52 is fixedly connected with the top block 53 for directly contacting the positioning groove 4, the right surface of the fixed sleeve 51 is fixedly connected with an oil storage sleeve 54 for storing lubricating oil, the left surface of the oil storage sleeve 54 is fixedly connected with a return spring 56 for supporting the sliding sleeve 52, the left surface of the return spring 56 is fixedly connected with the right end of the sliding sleeve 52, when the sliding sleeve 52 is extruded to the right, it will extrude the return spring 56 to make it shrink.

[0031] With reference to Figure 1 - Figure 3The lubricating assembly comprises an oil conveying sleeve 55 for conveying lubricating oil, the left end of the oil conveying sleeve 55 is fixedly connected to the inner wall of the sliding sleeve 52, there is a gap between the oil conveying sleeve 55 and the sliding sleeve 52, which can be used to accommodate the reset spring 56, the right end of the oil conveying sleeve 55 penetrates and is slidably connected to the inner wall of the oil storage sleeve 54, the oil conveying sleeve 55 can move left and right on the inner wall of the oil storage sleeve 54, the upper surface of the oil storage sleeve 54 is provided with an oil inlet 57 for conveniently adding lubricating oil into the oil storage sleeve 54, the upper surface of the oil inlet 57 is fixedly connected with an oil injection pipe 58 for conveniently injecting lubricating oil, the outer wall of the oil injection pipe 58 is provided with external threads 59, through the external threads 59, the oil injection pipe 58 can be directly connected with the lubricating oil pipeline of the oil injection device, in use, the oil injection pipe 58 can be used to directly inject lubricating oil into the oil storage sleeve 54 by means of the oil injection device, when lubricating oil is not needed to be injected, the threaded rubber sleeve can be used to close the top opening of the oil injection pipe 58.

[0032] Referring to Figure 2 - Figure 4 The inner wall of the fixed sleeve 51 is rotatably connected with a rotating shaft 510 for supporting the rotation of the lubricating ball 511, the outer wall of the rotating shaft 510 is fixedly connected with the lubricating ball 511 for driving the lubricating oil to be discharged, the lubricating ball 511 is made of rubber and has elastic deformation ability, the outer wall of the lubricating ball 511 is provided with grooves 512 and a plurality of groups, when the lubricating ball 511 rotates, it will drive the lubricating oil in the sliding sleeve 52 to be discharged outward through the grooves 512, so that the lubricating oil can enter the inside of the positioning groove 4, a plurality of groups of rotating shafts 510 and lubricating balls 511 are arranged in rotation around the center line of the fixed sleeve 51 as the rotation axis, so that the lubrication is uniform, the top block 53 is conical frustum-shaped, which can facilitate the left end of the top block 53 to enter the inside of the positioning groove 4.

[0033] Working principle: when manufacturing is needed, when the upper die 1 and the lower die 2 approach each other, the top block 53 will be inserted into the inside of the positioning groove 4 under the driving of the upper die 1, when the top block 53 is inserted to the leftmost end of the inner wall of the positioning groove 4, at this time the top block 53 will not be able to continue to move left, and at the same time, as the lower die 2 moves right, the top block 53 will be forced to extrude the reset spring 56 and retract into the inside of the fixed sleeve 51, when the sliding sleeve 52 is inserted into the inside of the positioning groove 4, the lubricating ball 511 will be forced to rotate due to the friction with the inner wall of the positioning groove 4, when the lubricating ball 511 rotates, it will drive the lubricating oil stored in the inside of the fixed sleeve 51 to flow outwards through the grooves 512, the lubricating oil will be coated on the inner wall of the positioning groove 4 through the outer wall of the lubricating ball 511, which can ensure smooth positioning every time.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A core print for facilitating the closing of a mould, comprising a lower mould half (2) and an upper mould half (1), characterised in that: The left surface of the upper die (1) is provided with an upper forming die (6), the right surface of the lower die (2) is provided with a lower forming die (3), the lower forming die (3) and the upper forming die (6) are matched, the right surface of the lower die (2) is provided with a positioning groove (4), and the left surface of the upper die (1) is provided with a positioning mechanism (5).

2. The core box with easy mold closing according to claim 1, characterized in that: The positioning mechanism (5) comprises a positioning assembly and a lubricating assembly, the positioning assembly comprises a fixing sleeve (51), the left end of the fixing sleeve (51) penetrates and is slidably connected with a sliding sleeve (52), the left surface of the sliding sleeve (52) is fixedly connected with a top block (53), the right surface of the fixing sleeve (51) is fixedly connected with an oil storage sleeve (54), the left surface of the oil storage sleeve (54) is fixedly connected with a reset spring (56), and the left surface of the reset spring (56) is fixedly connected with the right end of the sliding sleeve (52).

3. The core box with easy mold closing according to claim 1, characterized in that: The lubricating assembly comprises an oil conveying sleeve (55), the left end of the oil conveying sleeve (55) is fixedly connected with the inner wall of the sliding sleeve (52), and the right end of the oil conveying sleeve (55) penetrates and is slidably connected with the inner wall of the oil storage sleeve (54).

4. The core box with easy mold closing according to claim 3, characterized in that: The upper surface of the oil storage sleeve (54) is provided with an oil inlet (57), and the upper surface of the oil inlet (57) is fixedly connected with an oil inlet pipe (58).

5. The core box with easy mold closing according to claim 1, wherein: The outer wall of the oil inlet pipe (58) is provided with external threads (59).

6. The core box with easy mold closing according to claim 5, characterized in that: The inner wall of the fixing sleeve (51) is rotatably connected with a rotating shaft (510), and the outer wall of the rotating shaft (510) is fixedly connected with a lubricating ball (511).

7. The core box with easy mold closing according to claim 5, wherein: The outer wall of the lubricating ball (511) is provided with a groove (512) and a plurality of groups.

8. The core box with easy mold closing according to claim 1, wherein: The rotating shaft (510) and the lubricating ball (511) are provided with a plurality of groups, and the plurality of groups of the rotating shaft (510) and the lubricating ball (511) are rotationally arranged with the center line of the fixing sleeve (51) as the rotation axis. The top block (53) is in the shape of a truncated cone.

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