A knockdown casting mold

Abstract

The application relates to the field of casting tools, in particular to a detachable casting mold frame which comprises a plurality of mold plates, the mold plates are arranged to form an annular structure, the mold plate comprises a head end and a tail end, the head end and the tail end of adjacent mold plates correspond to each other, a cylindrical plug is arranged on the head end, a plug slot is arranged on the tail end, the plug is inserted into the plug slot of the tail end of the adjacent mold plate and can rotate around the axis of the plug. The application has the effect of improving the application range of the mold frame.

Description

Technical Field

[0001] This application relates to the technical field of casting tooling, and in particular to a detachable casting mold frame. Background Technology

[0002] Casting is a forming method in which molten metal is poured into a mold cavity and allowed to cool and solidify to obtain a metal part or blank with a certain shape, size, and properties. The casting mold frame is an important tooling in the casting process. It covers the outside of the molding sand and is used to support the molding sand to ensure the stability of the mold cavity during the pouring process.

[0003] The mold frame is usually a ring structure, which is formed by fixing multiple plates end to end. For example, a casting mold frame disclosed in patent document CN102463327A is mainly formed by splicing multiple mold frame individuals end to end, and two adjacent mold frame individuals are fixed with screws to form an integral mold frame body.

[0004] In actual production activities, the products of foundries are not the same. As the shape of the product changes, the shape of the mold frame body is not fixed. In related technologies, the shape of the mold frame body is fixed, which cannot adapt to the production of different castings. Utility Model Content

[0005] In order to expand the applicability of casting mold frames, this application provides a detachable casting mold frame.

[0006] The detachable casting mold frame provided in this application adopts the following technical solution:

[0007] A detachable casting mold frame includes multiple templates arranged to form a ring structure. Each template includes a head end and a tail end. The head ends and tail ends of adjacent templates correspond to each other. A cylindrical pin is provided on the head end, and a slot is provided on the tail end. The pin is inserted into the slot of the tail end of the adjacent template and can rotate around its own axis.

[0008] By adopting the above technical solution, the pin is inserted into the slot to realize the rotational connection between two adjacent templates. Rotating the template changes the angle between the two adjacent templates, thereby changing the overall shape of the mold frame to adapt to the casting of castings of different shapes.

[0009] Optionally, the head end is provided with a connecting ear, the tail end is provided with a connecting block, the pin is installed on the connecting ear, and the slot is provided on the connecting block.

[0010] By adopting the above technical solution, the installation of the pin and the processing of the slot are facilitated by setting the connecting ear and connecting block.

[0011] Optionally, the pin is slidably connected to the connecting ear, and sliding the pin can remove the pin from the slot.

[0012] By adopting the above technical solution, the sliding pin is moved out of the slot, thereby disconnecting the connection between two adjacent templates, making the templates detachable and facilitating their storage and transportation. At the same time, it is convenient for workers to assemble different numbers of templates according to the size of the casting.

[0013] Optionally, two pins are provided, with the two pins respectively located on both sides of the connecting block, and two slots are provided corresponding to the pins.

[0014] By adopting the above technical solution, two pins are inserted into the corresponding slots from both sides, improving the stability of adjacent templates after splicing.

[0015] Optionally, the slot is provided with a helical surface, and the pin is provided with a mating surface that can fit with the helical surface, and the helical surfaces in the two slots rotate in opposite directions.

[0016] By adopting the above technical solution, the spiral surface and the mating surface cooperate, and when the pin moves towards the slot, the two templates can rotate relative to each other, thereby adjusting the template angle. Furthermore, the two spiral surfaces limit the relative rotation between the two templates when both pins simultaneously abut against the spiral surfaces, thus improving the stability of the templates during use.

[0017] Optionally, the connecting block is provided with a pre-positioning component, which includes a pre-connecting ring and an elastic element. The pre-connecting ring is slidably connected to the connecting block in a direction parallel to the sliding direction of the pin. A pre-positioning groove is correspondingly provided on the connecting ear. The elastic element is installed on the connecting block to maintain a force that moves the pre-connecting ring toward the connecting ear. A guide slope is provided on the pre-connecting ring, which can drive the pre-connecting ring away from the connecting ear when it abuts against the connecting ear.

[0018] By adopting the above technical solution, during the splicing of the two templates, the tail end of one template approaches the head end of the other template. During this process, the guide bevel abuts against the connecting ear, at which point the pre-connecting ring can automatically move away from the connecting ear. When the pre-connecting ring aligns with the pre-positioning slot, the pre-connecting ring automatically inserts into the pre-positioning slot under the action of the elastic element, limiting the relative position between the two templates, making it easier for the operator to insert the pin into the slot.

[0019] Optionally, the pin is provided with a driving component, which is threadedly connected to the connecting lug and rotatably connected to the pin. Rotating the driving component can drive the pin to move.

[0020] By adopting the above technical solution, the driving component drives the pin to move, and the self-locking property of the thread is used to improve the stability of the pin during use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0022] Figure 2 This is an embodiment of the present application. Figure 1 Enlarged view of part A in the middle.

[0023] Figure 3 This is a schematic diagram of the slot structure according to an embodiment of this application.

[0024] Reference numerals: 1. Template; 11. Head end; 12. Tail end; 2. Connecting ear; 3. Connecting block; 31. Slot; 4. Pin; 5. Helical surface; 6. Driving component; 7. Pre-positioning component; 71. Pre-connecting ring; 72. Elastic component; 73. Sliding groove; 74. Pre-positioning groove; 75. Guide slope; 8. Molding sand; 81. Cavity. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0026] This application discloses a detachable casting mold frame.

[0027] Reference Figure 1 and Figure 2 A detachable casting mold frame includes multiple templates 1, each template 1 being a rectangular plate structure. The two ends of each template 1 are defined as a head end 11 and a tail end 12, respectively. The multiple templates 1 are arranged in a ring structure, with the head end 11 and tail end 12 corresponding to each other. A cylindrical pin 4 is provided at the head end 11 of each template 1, and a cylindrical slot 31 is provided at the tail end 12. The pin 4 is inserted into the slot 31 of adjacent templates 1 and can rotate around its own axis, allowing adjacent templates 1 to rotate relative to each other. This enables the mold frame to change its shape according to the specific shape of the casting, expanding the applicability of the mold frame. Molding sand is placed inside the mold frame, and a cavity is formed. Molten metal is poured into the cavity to achieve casting of the part.

[0028] Reference Figure 1 and Figure 2The head end 11 is provided with a connecting ear 2, and the tail end 12 is provided with a connecting block 3. The connecting ear 2 and the connecting block 3 are arranged sequentially in the width direction of the template 1. The connecting block 3 has a mounting hole that extends through the width direction of the template 1, and the pin 4 slides in the mounting hole along the width direction of the template 1. The slot 31 is provided on the connecting block 3. The sliding pin 4 can be inserted into the slot 31 or disengaged from the slot 31, realizing a detachable connection between the templates 1, which facilitates the demolding of the casting.

[0029] Reference Figure 1 and Figure 2 To improve the stability of the connection between adjacent templates 1, two pins 4 are symmetrically arranged about the center plane (a plane perpendicular to the width direction of template 1 and located at the middle position of the width direction of template 1), and two connecting ears 2 are also arranged accordingly. The sides of the two connecting ears 2 that are close to each other can fit against the sides of the connecting blocks 3 on the adjacent templates 1. The slots 31 are also arranged with two pins 4; the two pins 4 are inserted into the slots 31 at the same time, which improves the stability of the connection between multiple templates 1.

[0030] Reference Figure 1 and Figure 2 A spiral surface 5 is provided in slot 31. (Combined) Figure 3 The spiral surface 5 extends along a spiral line coaxial with the slot 31. The end of the pin 4 near the slot 31 has a mating surface corresponding to the spiral surface 5. The mating surface fits snugly against the spiral surface 5. When the pin 4 abuts against the spiral surface 5, it can cause the two adjacent templates 1 to rotate relative to each other. The spiral surfaces 5 in the two slots 31 rotate in opposite directions, so that when different pins 4 approach the spiral surface 5, they can cause the two templates 1 to rotate in opposite directions. By adjusting the distance between the two pins 4 and the slots 31, the angle between the two templates 1 can be changed.

[0031] Reference Figure 1 and Figure 2 A driving element 6 is provided at the end of the pin 4 facing away from the slot 31. The driving element 6 is threadedly connected to the mounting groove and is rotatably connected to the pin 4. Rotating the driving element 6 can cause the pin 4 to slide. The self-locking property of the thread can limit the position of the pin 4. When both pins 4 abut against the spiral surface 5 and the driving element 6 limits the pins 4, the angle between adjacent templates 1 is relatively fixed, making the adjacent templates 1 more stable during use.

[0032] Reference Figure 1 and Figure 2 The mounting block is equipped with a pre-positioning component 7, which includes a pre-connecting ring 71 and an elastic element 72. The pre-connecting ring 71 has a circular ring structure. Figure 3A sliding groove 73 is provided on the side wall of the connecting block 3 near the connecting ear 2. The connecting ring is coaxially disposed in the sliding groove 73 and can slide along the width direction of the template 1. An elastic element 72 is disposed in the sliding groove 73 and is used to apply a force to the pre-connecting ring 71 to move it outward from the sliding groove 73. In this embodiment, the elastic element 72 is a spring, which is disposed on the side of the pre-connecting ring 71 away from the connecting ear 2 and abuts against the pre-connecting ring 71. A guide slope 75 is provided on the outer side wall of the pre-connecting ring 71. The guide slope 75 is inclined along the axis of the connecting ring from the side away from the connecting ear 2 to the side near the connecting ear 2 towards its own axis. A cylindrical pre-positioning groove 74 is provided on the connecting ear 2 corresponding to the pre-connecting ring 71. The part of the pre-connecting ring 71 corresponding to the guide slope 75 can be inserted into the pre-positioning groove 74. When the connecting block 3 is inserted into the two connecting ears 2, the guide slope 75 can mate with the connecting ear 2 and drive the pre-connecting ring 71 to automatically enter the sliding groove 73. When the pre-connecting ring 71 aligns with the pre-positioning groove 74 on the connecting ear 2, the pre-connecting ring 71 automatically inserts into the pre-positioning groove 74 under the action of the elastic element 72, positioning the relative position between the two templates 1, facilitating the insertion of the pin 4 into the slot 31. The pre-positioning assembly 7 is configured with two sets corresponding to the connecting ear 2 to improve the stability of the pre-positioning assembly 7 in positioning the template 1.

[0033] The implementation principle of a detachable casting mold frame in this application embodiment is as follows: the rotational connection between adjacent templates 1 is realized through the cooperation between the pin 4 and the slot 31, which makes it convenient for workers to adjust the shape of the mold frame according to the different shapes of the castings, thereby improving the applicability of the mold frame.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A detachable casting mold frame, comprising multiple templates (1) arranged to form a ring structure, characterized in that: The template (1) includes a head end (11) and a tail end (12); the head ends (11) and tail ends (12) of adjacent templates (1) correspond to each other. A cylindrical pin (4) is provided on the head end (11), and a slot (31) is provided on the tail end (12). The pin (4) is inserted into the slot (31) of the tail end (12) of the adjacent template (1) and can rotate around its own axis.

2. The detachable casting mold frame according to claim 1, characterized in that: The head end (11) is provided with a connecting ear (2), the tail end (12) is provided with a connecting block (3), the pin (4) is installed on the connecting ear (2), and the slot (31) is provided on the connecting block (3).

3. A detachable casting mold frame according to claim 2, characterized in that: The pin (4) is slidably connected to the connecting ear (2), and sliding the pin (4) can move the pin (4) out of the slot (31).

4. A detachable casting mold frame according to claim 3, characterized in that: The pins (4) are set to two, and the two pins (4) are respectively set on both sides of the connecting block (3). The slots (31) are set to two pins (4).

5. A detachable casting mold frame according to claim 4, characterized in that: The slot (31) is provided with a spiral surface (5), and the pin (4) is provided with a mating surface that can fit with the spiral surface (5). The spiral surfaces (5) in the two slots (31) rotate in opposite directions.

6. A detachable casting mold frame according to claim 3, characterized in that: The connecting block (3) is provided with a pre-positioning component (7), which includes a pre-connecting ring (71) and an elastic element (72). The pre-connecting ring (71) is slidably connected to the connecting block (3) in a direction parallel to the sliding direction of the pin (4). The connecting ear (2) is provided with a corresponding pre-positioning groove (74). The elastic element (72) is installed on the connecting block (3) to maintain the force of the pre-connecting ring (71) moving towards the connecting ear (2). The pre-connecting ring (71) is provided with a guide slope (75). When the guide slope (75) abuts against the connecting ear (2), it can drive the pre-connecting ring (71) away from the connecting ear (2).

7. A detachable casting mold frame according to claim 6, characterized in that: The pin (4) is provided with a driving member (6), which is threadedly connected to the connecting ear (2) and rotatably connected to the pin (4). Rotating the driving member (6) can drive the pin (4) to move.

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