A tenon-mortise locking structure for foundry coated sand shell mold

Abstract

The utility model relates to foundry shell mold technical field, concretely relates to a kind of mortise and tenon type locking structure for foundry coated sand shell mold, including mould base, limit board one, heating seat, limit board two, mortise and tenon structure and locking structure, the top outer wall of mould base is fixedly connected limit board one, the bottom outer wall of heating seat is fixedly connected limit board two, the left and right sides of limit board one are all fixedly connected two supports, the inner wall of support is fixedly connected the cylinder of electric push rod, the piston rod of electric push rod is fixedly connected plug block, the outer wall around limit board one is all connected fixed plate by hinge rotation, the top outer wall of fixed plate is fixedly connected extrusion plate, extrusion plate is rested on the top of limit board two.The utility model is provided with mortise and tenon structure, makes plug rod tightly inserted in limit board two, to complete the preliminary fixation of mould base and heating seat, it is convenient and fast to operate, using mortise and tenon structure, it is more stable to fix.

Description

Technical Field

[0001] This utility model belongs to the field of casting shell technology, specifically relating to a tenon-and-mortise locking structure for casting coated sand shells. Background Technology

[0002] In shell casting, a preheated metal mold (approximately 280–320°C) is placed on a tipping bucket filled with resin-bonded molding sand. The bucket is then tilted, causing the resin sand to fall onto the mold. The resin melts upon heating and binds the sand, forming a thin shell. The bucket is then returned to its original position, allowing any unmelted resin sand to fall off. The mold with the shell is then heated to harden the shell before it can be removed. Generally, the shell is formed in two stages: the first layer is the surface layer, which gives the casting a smooth finish; the second layer is a reinforcing layer, strengthening the shell.

[0003] However, existing heat-accumulating molds for casting coated sand shells often lack a locking structure, which easily leads to the bottom mold seat and the top heating seat not being able to be tightly fixed together, resulting in large processing errors. After the thin shell hardens, the shell processing quality is poor and it is inconvenient to use. Therefore, there is an urgent need for a tenon-and-mortise locking structure for casting coated sand shells to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide a tenon-and-mortise locking structure for casting coated sand shell molds, so as to solve the problem mentioned in the background art that the heat accumulation molds of existing casting coated sand shell molds often do not have a locking structure, which easily causes the bottom mold seat and the top heating seat to be unable to be tightly fixed together, resulting in large processing errors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tenon-and-mortise locking structure for casting coated sand shell molds, comprising a mold base, a first limiting plate, a heating base, a second limiting plate, tenon-and-mortise structures, and a locking structure. The first limiting plate is fixedly connected to the top outer wall of the mold base, and the second limiting plate is fixedly connected to the bottom outer wall of the heating base. Four tenon-and-mortise structures are provided, each including a bracket. Two brackets are fixedly connected to the left and right sides of the first limiting plate. The cylinder of an electric push rod is fixedly connected to the inner wall of the bracket. The piston rod of the electric push rod is fixedly connected to a third limiting plate. An insert is fixedly connected to the outer wall of the third limiting plate. The insert is inserted into the first limiting plate and the second limiting plate. The locking structure includes a fixing plate. The fixing plate is rotatably connected to the outer walls of the first limiting plate via hinges. An extrusion plate is fixedly connected to the top outer wall of the fixing plate. The extrusion plate abuts against the top of the second limiting plate.

[0006] Preferably, two rods are fixedly connected to the top left and right ends of the first limiting plate, and slots are provided at the bottom of the left and right ends of the second limiting plate, and the rods are inserted into slots.

[0007] Preferably, the outer wall of the insertion rod is provided with a slot three, the outer wall of the limiting plate two is provided with a slot two, and the insertion block is inserted into slot three and slot two.

[0008] Preferably, a motor is fixedly connected to the front side of the hinge, and the drive shaft of the motor is fixedly connected to the rotating shaft in the middle of the hinge.

[0009] Preferably, one end of the hinge is fixedly connected to the outer wall of the limiting plate, the other end of the hinge is fixedly connected to the bottom of the fixing plate, and the pivot in the middle of the hinge is fixedly connected to the end connected to the fixing plate.

[0010] Preferably, the top of the limiting plate 2 is provided with a limiting groove, the bottom of the extrusion plate is provided with a slope, and the extrusion plate abuts against the limiting groove.

[0011] Preferably, both the electric push rod and the motor are connected to an external power source, and both the electric push rod and the motor are electrically connected to the control console.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This casting coated sand shell mold uses a mortise and tenon locking structure. The heating seat is placed on the limiting plate one, allowing the heating seat to heat the sand shell mold on the limiting plate one, thus solidifying the sand shell mold. When the heating seat is on the limiting plate one, the mold base's insert rod is inserted into the slot one of the limiting plate two. Activating the electric push rod causes the limiting plate three and the insert block to be inserted into the insert rod, causing the insert block to press against the slot three, aligning the slot three with the slot two. This initially fixes the positions of the mold base and the heating seat. The mortise and tenon structure allows the insert rod to be pressed tightly into the limiting plate two, thus completing the initial fixation of the mold base and the heating seat. The operation is convenient and quick, and the mortise and tenon structure provides a more stable fixation.

[0014] 2. This casting coated sand shell mold uses a tenon-and-mortise locking structure. When the motor is turned on, it drives the fixing plate to flip upward, causing the extrusion plate to press against the limiting groove. The extrusion plate presses against the limiting groove, making the mold base and heating base more tightly fixed. The locking structure can further fix the second limiting plate, and the position of the mold base and heating base is reinforced a second time, making it safer and more stable to use, and improving stability. Attached Figure Description

[0015] Figure 1 This is a front perspective view of the present utility model;

[0016] Figure 2 This is a schematic diagram of the disassembly of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the front of this utility model;

[0018] Figure 4 This is an exploded view of the mortise and tenon structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the exploded structure of the locking structure of this utility model.

[0020] In the diagram: 1. Mold base; 2. Limiting plate one; 21. Insert rod; 22. Slot three; 3. Heating base; 4. Limiting plate two; 41. Slot one; 42. Slot two; 43. Limiting groove; 5. Mortise and tenon structure; 51. Bracket; 52. Electric push rod; 53. Limiting plate three; 54. Insert block; 6. Locking structure; 61. Hinge; 62. Motor; 63. Fixing plate; 64. Extrusion plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides an embodiment of a tenon-and-mortise locking structure for casting coated sand shell molds, including a mold base 1, a first limiting plate 2, a heating base 3, a second limiting plate 4, tenon-and-mortise structures 5, and a locking structure 6. The first limiting plate 2 is fixedly connected to the top outer wall of the mold base 1, and the second limiting plate 4 is fixedly connected to the bottom outer wall of the heating base 3. Four tenon-and-mortise structures 5 are provided, each including a bracket 51. Two brackets 51 are fixedly connected to the left and right sides of the first limiting plate 2. The cylinder of an electric push rod 52 is fixedly connected to the inner wall of the bracket 51. The piston rod of the electric push rod 52 is fixedly connected to a third limiting plate 53. An insert block 54 is fixedly connected to the outer wall of the third limiting plate 53. The locking structure 6 includes a fixed plate 63, which is connected to the first limiting plate 2 and the second limiting plate 4. The outer walls of the first limiting plate 2 are rotatably connected to the fixed plate 63 via hinges 61. The top outer wall of the fixed plate 63 is fixedly connected to the extrusion plate 64, which abuts against the top of the second limiting plate 4. The locking structure 6 can further fix the second limiting plate 4, and provide secondary reinforcement to the positions of the mold base 1 and the heating base 3, making it safer and more stable to use. The tenon and mortise structure 5 can press the insertion rod 21, so that the insertion rod 21 is tightly inserted into the second limiting plate 4, thereby completing the initial fixation of the mold base 1 and the heating base 3. The operation is convenient and quick, and the tenon and mortise structure makes the fixation more stable.

[0023] Furthermore, two rods 21 are fixedly connected to the top left and right ends of the limiting plate 1 2, and slots 41 are opened at the bottom of the left and right ends of the limiting plate 2 4. The rods 21 are inserted into slots 41. When the heating seat 3 is placed on the limiting plate 1 2, the rods 21 of the mold seat 1 are inserted into slots 41 of the limiting plate 2 4.

[0024] Furthermore, the outer wall of the insertion rod 21 is provided with a slot 3 22, and the outer wall of the limiting plate 2 4 is provided with a slot 2 42. The insertion block 54 is inserted into the slot 3 22 and the slot 2 42. The limiting plate 1 2 drives the limiting plate 3 53 and the insertion block 54 to be inserted into the insertion rod 21, so that the insertion block 54 presses the slot 3 22, so that the slot 3 22 is aligned with the slot 2 42. The mortise and tenon structure makes the fixation more stable.

[0025] Furthermore, the front side of the hinge 61 is fixedly connected to the motor 62, the drive shaft of the motor 62 is fixedly connected to the pivot in the middle of the hinge 61, one end of the hinge 61 is fixedly connected to the outer wall of the limiting plate 2, and the other end of the hinge 61 is fixedly connected to the bottom of the fixing plate 63. The pivot in the middle of the hinge 61 is fixedly connected to the end connected to the fixing plate 63. The motor 62 is existing technology and will not be described in detail in this article. The motor 62 is installed by four fixing bolts. When the motor 62 is turned on, the motor 62 drives the fixing plate 63 to flip upward.

[0026] Furthermore, the top of the limiting plate 4 is provided with a limiting groove 43, and the bottom of the extrusion plate 64 is provided with a slope. The extrusion plate 64 abuts against the limiting groove 43, and the extrusion plate 64 extrudes the limiting groove 43, so that the mold base 1 and the heating base 3 are more tightly fixed.

[0027] Furthermore, both the electric actuator 52 and the motor 62 are connected to an external power source and are electrically connected to the control console. The external power source provides power to the electric actuator 52 and the motor 62, and the control console sends control signals to realize the functions of starting, stopping, speed adjustment, and rotation direction of the electric actuator 52 and the motor 62.

[0028] Working principle: During use, the heating seat 3 is placed on the limiting plate 2, allowing the heating seat 3 to heat the sand mold on the limiting plate 2, thus solidifying the sand mold. When the heating seat 3 is on the limiting plate 2, the insert rod 21 of the mold base 1 is inserted into the slot 41 of the limiting plate 4. The electric push rod 52 is activated, causing the limiting plate 53 and the insert block 54 to be inserted into the insert rod 21. The insert block 54 presses against the slot 22, aligning the slot 22 with the slot 42, thereby initially fixing the position of the mold base 1 and the heating seat 3. The tenon and mortise structure 5 can be used to press... Insert rod 21, thereby tightly inserting it into the limiting plate 4, thus completing the initial fixation of mold base 1 and heating base 3. The operation is convenient and quick. The tenon and mortise structure makes the fixation more stable. Turn on motor 62, which drives fixing plate 63 to flip upward, so that extrusion plate 64 abuts against limiting groove 43. Extrusion plate 64 extrudes limiting groove 43, making mold base 1 and heating base 3 more tightly fixed. The locking structure 6 can further fix the limiting plate 4, and the position of mold base 1 and heating base 3 is reinforced for a second time, making it safer and more stable to use and improving stability.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tenon-and-mortise locking structure for casting coated sand shell molds, comprising a mold base (1), a first limiting plate (2), a heating base (3), a second limiting plate (4), a tenon-and-mortise structure (5), and a locking structure (6), characterized in that: The top outer wall of the mold base (1) is fixedly connected to the limiting plate one (2), the bottom outer wall of the heating base (3) is fixedly connected to the limiting plate two (4), the tenon structure (5) is provided with four, the tenon structure (5) includes a bracket (51), the left and right sides of the limiting plate one (2) are fixedly connected to two brackets (51), the inner wall of the bracket (51) is fixedly connected to the cylinder of the electric push rod (52), and the piston rod of the electric push rod (52) is fixedly connected to the limiting plate. Plate 3 (53), the outer wall of the limiting plate 3 (53) is fixedly connected to the insert (54), the insert (54) is inserted into the limiting plate 1 (2) and the limiting plate 2 (4), the locking structure (6) includes a fixing plate (63), the outer walls of the limiting plate 1 (2) are all rotatably connected to the fixing plate (63) through hinges (61), the top outer wall of the fixing plate (63) is fixedly connected to the extrusion plate (64), the extrusion plate (64) abuts against the top of the limiting plate 2 (4).

2. The tenon-and-mortise locking structure for casting coated sand shell molds according to claim 1, characterized in that: The top left and right ends of the limiting plate one (2) are fixedly connected to two plug rods (21), and the bottom of the left and right ends of the limiting plate two (4) are provided with slot one (41), and the plug rod (21) is inserted into slot one (41).

3. The tenon-and-mortise locking structure for casting coated sand shell molds according to claim 2, characterized in that: The outer wall of the insertion rod (21) is provided with a slot three (22), the outer wall of the limiting plate two (4) is provided with a slot two (42), and the insertion block (54) is inserted into slot three (22) and slot two (42).

4. The tenon-and-mortise locking structure for casting coated sand shell molds according to claim 1, characterized in that: The front side of the hinge (61) is fixedly connected to the motor (62), and the drive shaft of the motor (62) is fixedly connected to the rotating shaft in the middle of the hinge (61).

5. The tenon-and-mortise locking structure for casting coated sand shell molds according to claim 1, characterized in that: One end of the hinge (61) is fixedly connected to the outer wall of the limiting plate (2), and the other end of the hinge (61) is fixedly connected to the bottom of the fixing plate (63). The pivot in the middle of the hinge (61) is fixedly connected to the end connected to the fixing plate (63).

6. The tenon-and-mortise locking structure for casting coated sand shell molds according to claim 1, characterized in that: The top of the limiting plate 2 (4) is provided with a limiting groove (43), and the bottom of the extrusion plate (64) is provided with a slope, and the extrusion plate (64) abuts against the limiting groove (43).

7. The tenon-and-mortise locking structure for casting coated sand shell molds according to claim 1, characterized in that: The electric push rod (52) and the motor (62) are both connected to an external power source, and the electric push rod (52) and the motor (62) are both electrically connected to the control console.

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