A mold bracket and mold assembly

Abstract

The present invention relates to the technical field of mold supports, and in particular to a mold support and mold assembly. The mold support comprises two support arms arranged at intervals; a support groove is provided on the top surface of the support arm, and the mold support further comprises a support block eccentrically arranged on the casting mold when in use, the support block being used to fall into the support groove from top to bottom and supported on the bottom of the support groove; the support surface of the support block for cooperating with the bottom of the groove and at least one of the bottoms of the groove are arc-shaped surfaces, so that the support block can swing relative to the support groove around an axis extending left and right; the front and rear sides of the support block are respectively provided with a stop portion for cooperating with the groove wall of the support groove; after the support block falls into the support groove, it swings under the weight of the casting mold until the support block and the support groove are stopped front and back, so that the casting mold is arranged at an angle.

Description

Technical Field

[0001] The present invention relates to the technical field of mold brackets, and in particular to a mold bracket and a mold assembly. Background Art

[0002] Basin-type insulators are cast using a casting mold. Their structural form is mostly as shown in the Chinese utility model patent with authorization announcement number CN215703397U. The casting mold usually includes two halves that are axially aligned together to form a cavity. The top of the mold half has a gate. During casting, the liquid flows from the gate into the molding cavity. After solidification, it is demoulded to form a finished product.

[0003] In the prior art, the casting mold is mounted on a frame via a mold bracket. The mold bracket generally includes two leg assemblies arranged at intervals. Each leg assembly includes two legs corresponding to two half molds, and the legs are fixed to the bottom of the half molds. In order to facilitate casting, at least two casting molds at different heights are usually arranged on the frame in sequence, and a guide plate is connected between the gates of two adjacent casting molds. The gates of two adjacent casting molds have different heights, so that the guide plate is arranged at an angle. When casting, after the mold with the higher gate is cast, the liquid flows from the guide plate to the gate of the next casting mold, and so on, until the cavities of all casting molds are filled with liquid. In order to facilitate the arrangement of the inclined guide plate on the top of the casting mold and to facilitate the flow of liquid, it is usually necessary to arrange the upstream (higher) casting mold at an angle. The current tilting method is to tilt the casting mold together with the mold bracket, and use pads and other structures between the mold bracket and the frame, and then use a pull rope to pull it. However, since the casting mold is heavy, there is still a risk of tipping over after breaking by only using the pull rope. Summary of the Invention

[0004] The present invention aims to provide a mold support to solve the technical problem that the existing casting mold has a risk of tipping over when arranged tilted on the mold support. The present invention also provides a mold assembly to solve the above technical problem.

[0005] The technical solution of the mold support of the present invention is:

[0006] The mold support includes two support arms arranged at intervals, and the spacing direction of the two support arms is defined as the left and right direction; the top surface of the support arm is provided with a support groove, and the mold support also includes a support block eccentrically arranged on the casting mold when in use, and the support block is used to fall into the support groove from top to bottom and be supported on the bottom of the support groove; the support surface of the support block for cooperating with the bottom of the groove and at least one of the groove bottoms are arc-shaped surfaces, so that the support block can swing relative to the support groove around an axis extending left and right; the front and rear sides of the support block are respectively provided with stop parts for cooperating with the groove wall of the support groove. After the support block falls into the support groove, it swings under the dead weight of the casting mold until the support block and the support groove are stopped front and back, so that the casting mold is arranged at an angle.

[0007] Beneficial effect: When the casting mold is placed on the mold holder, it is only necessary to align the support block on the casting mold with the support groove, and then drop it into the support groove from top to bottom. After the support surface of the support block contacts the bottom of the support groove, since the support block is eccentrically arranged on the casting mold, and at least one of the support surface and the bottom of the groove of the support block is an arc-shaped surface, the support block will swing around the axis extending left and right under the action of the deadweight of the casting mold, that is, the casting mold can swing around the axis extending left and right relative to the mold holder under the action of its own weight until the front and rear stop parts of the support block are respectively stopped by the front and rear groove walls of the support groove, and the casting mold stops swinging. At this time, the casting mold is arranged obliquely relative to the mold holder. When the casting mold is arranged obliquely on the mold holder of the present invention, the mold holder does not need to be tilted, the connection between the mold holder and the frame is still relatively reliable, and the risk of tipping over of the casting mold is relatively small.

[0008] Furthermore, the supporting groove is a through groove running through from left to right.

[0009] Beneficial effect: the support groove is a through groove running through left and right, making the support groove more convenient to process.

[0010] Furthermore, the support block includes a base fixed on the casting mold during use, and a protrusion threadedly mounted on the base, the protrusion protruding from the base, and the protrusion is used to fall into the support groove.

[0011] Beneficial effects: The support block consists of a detachable base and a protrusion. When the protrusion is damaged, it can be replaced. In addition, when the inclination angle of the casting mold needs to be adjusted, protrusions of different dimensions can be replaced to adjust the inclination angle of the casting mold.

[0012] Furthermore, the support arm includes a main arm and an extension arm, the support groove is arranged at the top of the extension arm, and the extension arm can be telescopically adjusted relative to the main arm to change the length of the support arm. When the extension arm can be telescopically adjusted relative to the main arm, the support arm also includes a locking structure arranged to lock the extension arm and the main arm after the extension arm and the main arm are adjusted into place.

[0013] Beneficial effect: The support arm can be telescopically adjusted to adjust its own length, which is convenient for adjusting the height of the casting mold, making the mold support more applicable.

[0014] The technical solution of the mold assembly of the present invention is:

[0015] The mold assembly includes a frame and a mold support arranged on the frame, the mold support includes two support arms arranged at intervals, and the spacing direction of the two support arms is defined as the left and right direction; the top surface of the support arm is provided with a support groove, and the mold support also includes a support block eccentrically arranged on the casting mold when in use, the support block is used to fall into the support groove from top to bottom and be supported on the bottom of the support groove; the support surface of the support block for cooperating with the bottom of the groove and at least one of the groove bottoms are arc-shaped surfaces, so that the support block can swing relative to the support groove around an axis extending left and right; the front and rear sides of the support block are respectively provided with stop parts for cooperating with the groove wall of the support groove, and after the support block falls into the support groove, it swings under the dead weight of the casting mold until the support block and the support groove are stopped front and back, so that the casting mold is arranged at an angle.

[0016] Beneficial effect: When the casting mold is placed on the mold holder, it is only necessary to align the support block on the casting mold with the support groove, and then drop it into the support groove from top to bottom. After the support surface of the support block contacts the bottom of the support groove, since the support block is eccentrically arranged on the casting mold, and at least one of the support surface and the bottom of the groove of the support block is an arc-shaped surface, the support block will swing around the axis extending left and right under the action of the deadweight of the casting mold, that is, the casting mold can swing around the axis extending left and right relative to the mold holder under the action of its own weight until the front and rear stop parts of the support block are respectively stopped by the front and rear groove walls of the support groove, and the casting mold stops swinging. At this time, the casting mold is arranged obliquely relative to the mold holder. When the casting mold is arranged obliquely on the mold holder of the present invention, the mold holder does not need to be tilted, the connection between the mold holder and the frame is still relatively reliable, and the risk of tipping over of the casting mold is relatively small.

[0017] Furthermore, the supporting groove is a through groove running through from left to right.

[0018] Beneficial effect: the support groove is a through groove running through left and right, making the support groove more convenient to process.

[0019] Furthermore, the support block includes a base fixed on the casting mold during use, and a protrusion threadedly mounted on the base, the protrusion protruding from the base, and the protrusion is used to fall into the support groove.

[0020] Beneficial effects: The support block consists of a detachable base and a protrusion. When the protrusion is damaged, it can be replaced. In addition, when the inclination angle of the casting mold needs to be adjusted, protrusions of different dimensions can be replaced to adjust the inclination angle of the casting mold.

[0021] Furthermore, the support arm includes a main arm and an extension arm, the support groove is arranged at the top of the extension arm, and the extension arm can be telescopically adjusted relative to the main arm to change the length of the support arm. When the extension arm can be telescopically adjusted relative to the main arm, the support arm also includes a locking structure arranged to lock the extension arm and the main arm after the extension arm and the main arm are adjusted into place.

[0022] Beneficial effect: The support arm can be telescopically adjusted to adjust its own length, which is convenient for adjusting the height of the casting mold, making the mold support more applicable.

[0023] Furthermore, the notch of the supporting groove is expanded.

[0024] Beneficial effect: the opening of the support groove is expanded, and the support block is easier to fall into the support groove.

[0025] Furthermore, the support arms are mounted on the frame in a positionally adjustable manner along the left-right direction, so that the left-right distance between the two support arms is adjustable.

[0026] Beneficial effects: The distance between the two supporting arms is adjustable, so that the mold support can support casting molds of different sizes, and the mold support has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 1 is a schematic diagram of the overall structure of the mold assembly in Example 1 of the present invention;

[0028] Figure 2 Schematic diagram of the structure of the mold support and the connecting block in the mold assembly embodiment 1 of the present invention;

[0029] Figure 3 yes Figure 1 A top view of

[0030] Figure 4 Schematic diagram of the connection between the casting mold and the support block in the mold assembly embodiment 1 of the present invention;

[0031] Figure 5 yes Figure 4 Cross-sectional view at the middle support block;

[0032] Figure 6 This is a front view of the main arm of the mold assembly embodiment 1 of the present invention;

[0033] Figure 7 is a side view of the main arm of the mold assembly embodiment 1 of the present invention;

[0034] Figure 8 It is a top view of the main arm in embodiment 1 of the mold assembly of the present invention.

[0035] Explanation of the accompanying reference numerals: 1. Casting mold; 2. Trolley; 3. Support plate; 4. Roller; 5. Support arm; 6. Support block; 7. Support groove; 8. Base; 9. Protrusion; 10. Main arm; 11. Extension arm; 12. Main arm through hole; 13. Extension arm through hole; 14. Bottom plate; 15. Positioning hole; 16. Guide groove; 17. Connecting block; 18. Stop portion; 19. Raised portion; 20. First reinforcing rib plate; 21. Second reinforcing rib plate. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0038] It should be noted that, in the specific embodiments of the present invention, terms such as "first" and "second" and other relational terms that may appear are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of such an actual relationship or order between these entities or operations. Moreover, terms such as "include", "comprise" or any other variants thereof that may appear are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the phrase "including a ..." and other defined elements that may appear do not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0039] In the description of the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," and "connected" should be interpreted broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] In the description of the present invention, unless otherwise expressly specified or limited, the terms "provided with" and "provided with" should be understood broadly. For example, the object "provided with" may be a part of the main body, or may be arranged separately from the main body and connected to the main body. The connection may be detachable or non-detachable. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] The present invention is described in further detail below with reference to the examples.

[0042] Example 1 of the mold assembly provided in the present invention:

[0043] like Figures 1 to 8 As shown, the mold assembly includes a frame and a mold bracket arranged on the frame. In this embodiment, four mold brackets are provided, and the four mold brackets are arranged at intervals from front to back (the interval arrangement direction of each mold bracket is the front-to-back direction) on the frame, and the height of each mold bracket gradually decreases from front to back. After the casting mold 1 is placed on each mold bracket, each casting mold 1 can be arranged tilted to the same side on the mold bracket, so that each casting mold 1 can be cast in sequence from front to back during casting.

[0044] In this embodiment, the frame is a trolley 2 , which includes a support plate 3 and a roller 4 rotatably mounted on the lower side of the support plate 3 .

[0045] The mold support includes two support arms 5 spaced apart from each other (the two support arms 5 are spaced apart in the left-right direction) and support blocks 6. Each mold support includes two support blocks 6, which are fixed to the left and right sides of the casting mold 1, respectively. The top surfaces of the support arms 5 are provided with support grooves 7. When the casting mold 1 is installed, the two support blocks 6 fall from top to bottom into the corresponding support grooves 7 and are supported on the bottoms of the corresponding support grooves 7, so that the casting mold 1 is erected between the two support arms 5. In this embodiment, the support grooves 7 are U-shaped through grooves that run through from left to right, and the groove openings of the support grooves 7 are flared, making it easier for the support blocks 6 to fall into the support grooves 7.

[0046] The support block 6 comprises a base 8 fixed to the casting mold 1 and a protrusion 9 protruding from the base 8. The base 8 is screwed onto the casting mold 1, and the protrusion 9 is screwed onto the base 8. The protrusion 9 is the portion of the support block 6 that fits into the support groove 7. The protrusion 9 is generally quadrilateral, with its front and rear side surfaces respectively designed to engage with the front and rear walls of the support groove 7. The bottom surface serves as a support surface for the bottom of the support groove 7. In this embodiment, the support surface of the protrusion 9 is an arc-shaped surface that protrudes toward the bottom of the support groove 7.

[0047] It should be noted that the support block 6 is eccentrically arranged on the casting mold 1. In this way, after the casting mold 1 is placed on the mold support, under the action of the casting mold 1's own weight, the support block 6 can swing relative to the support groove 7 around an axis extending left and right (that is, the casting mold 1 can swing relative to the mold support around an axis extending left and right under the action of its own weight). During the swinging process of the support block 6, the support surface of the support block 6 rolls in contact with the bottom of the support groove 7. The use of an arc-shaped support surface ensures that the support block 6 can swing smoothly. After the casting mold 1 swings a certain angle, the top of the front side of the protrusion 9 is stopped and engaged with the front side wall of the support groove 7, and the bottom of the rear side of the protrusion 9 is stopped and engaged with the rear side wall of the support groove 7. At this time, the support block 6 stops swinging, and the casting mold 1 is tilted on the mold support. The top of the front side of the protrusion 9 constitutes the stopper on the front side of the protrusion 9, and the bottom of the rear side of the protrusion 9 constitutes the stopper on the rear side of the protrusion 9.

[0048] To allow for height adjustment of the casting mold 1 on the mold support, in this embodiment, the support arm 5 is configured to be adjustable in length. The support arm 5 comprises a main arm 10 and an extension arm 11. The extension arm 11 is disposed at the top of the main arm 10, and a support slot 7 is provided on the top surface of the extension arm 11. The extension arm 11 can be adjusted relative to the main arm 10 to change the length of the support arm 5. Furthermore, the support arm 5 includes a locking structure that secures the extension arm 11 to the main arm 10 after the extension arm 11 and the main arm 10 are adjusted into position. Specifically, the main arm 10 has a rectangular cross-section and a vertically extending passageway therethrough. The extension arm 11 is inserted into the passageway of the main arm 10 and can slide and extend relative to the main arm 10. The main arm 10 is provided with a plurality of main arm through-holes 12 along its extension direction, and the extension arm 11 is provided with a plurality of extension arm through-holes 13 along its extension direction. In this embodiment, the locking structure comprises a fastening bolt and a nut secured to the fastening bolt. When the length of the support arm 5 needs to be adjusted, first extend the extension arm 11 relative to the main arm 10 so that the support arm 5 reaches the required length, and make the extension arm through-hole 13 correspondingly connected to the main arm through-hole 12, then install the fastening bolts in the interconnected extension arm through-hole 13 and the main arm through-hole 12 and tighten them with nuts to complete the adjustment of the length of the support arm 5.

[0049] To accommodate casting molds 1 of various sizes, the mold support is designed with an adjustable left-right spacing between the two support arms 5 on the support plate 3. The mold support also includes a fastening structure for securing the support arms 5 to the trolley 2 after the spacing between the two support arms 5 has been adjusted. A base plate 14 is provided at the bottom of the main arm 10 of the support arm 5. This base plate 14 is provided with a positioning hole 15 extending horizontally. Correspondingly, a guide slot 16 extending vertically and longitudinally is provided on the support plate 3. In this embodiment, the fastening structure includes bolts, nuts, and a connecting block 17. The connecting block 17 includes a stopper 18 and a protrusion 19 protruding from the stopper 18. The connecting block 17 is provided with a bolt through-hole for the bolt to pass through. The connecting block 17 is configured to be clamped into the guide groove 16 from bottom to top. When the connecting block 17 is clamped into the guide groove 16, the protrusion 19 is clamped into the guide groove 16, and the stopper 18 is configured to engage with the lower side of the support plate 3. To adjust the spacing between the two support arms 5, the spacing between the two base plates 14 is first adjusted according to the size of the mold. After the spacing is adjusted, the positioning holes 15 are correspondingly connected to the guide groove 16. The connecting block 17 is first clamped into the guide groove 16, and then the bolts are inserted from bottom to top through the connecting block 17, the positioning holes 15, and the guide groove 16, and then tightened with nuts. At this point, the base plate 14 is fixed to the support plate 3, and the spacing between the two support arms 5 is adjusted. The mold support can also be adjusted in the front-to-back direction on the trolley 2 through the cooperation between the guide groove 16 and the positioning hole 15 .

[0050] In addition, reinforcing ribs are respectively provided on the left and right side surfaces of the support arm 5, namely a first reinforcing rib 20 that is in contact with the support arm 5 and a second reinforcing rib 21 that is arranged perpendicular to the support arm 5. The setting of the reinforcing ribs effectively enhances the structural strength of the support arm 5, and the support arm 5 has a stronger bearing capacity.

[0051] It should be noted that if Figure 3 As shown, the bottom plate 14 is a rectangular plate, and the support arms 5 are arranged near the long sides of the bottom plate 14. The position of the support arms 5 can be adjusted by rotating the bottom plate 14 to change the spacing adjustment range between the two support arms 5. Figure 3The first two groups of support arms 5 are located near the outside of the bottom plate 14, and the second two groups of support arms 5 are located near the inside of the bottom plate 14. The bottom plates 14 of the second two groups of support arms 5 are rotated 180° relative to the bottom plates 14 of the first two groups of support arms 5. The first two groups of support arms 5 can support a larger casting mold 1 than the second two groups of support arms 5. In addition, during the use of the mold assembly, the protrusions 9 can be replaced. For example, when the casting mold 1 needs to have a larger tilt angle, the protrusions 9 with a smaller distance between the front and rear sides can be replaced. After the casting mold 1 is placed on the mold bracket, the protrusions 9 can swing around the axis extending left and right to a larger angle, so that the casting mold 1 has a larger tilt angle relative to the mold bracket. When the casting mold 1 needs to have a smaller tilt angle, the protrusions 9 with a larger distance between the front and rear sides can be replaced.

[0052] The second embodiment of the mold assembly provided in the present invention is different from the first embodiment in that the support groove does not penetrate from left to right, and the notch of the support groove is still facing upward.

[0053] The third embodiment of the mold assembly provided in the present invention is different from the first embodiment in that, in this embodiment, the base and the bump are integrally formed.

[0054] Example 4 of the mold assembly provided in the present invention is different from Example 1 in that the support arm is a double-layer sleeve, including an outer tube located on the outside and an inner tube located inside the outer tube. The outer surface of the inner tube has an external thread, and the inner surface of the outer tube has an internal thread that matches the external thread. In this embodiment, when the inner tube is screwed, the inner tube can expand and contract relative to the outer tube, thereby achieving the purpose of adjusting the overall length of the support arm.

[0055] Embodiment 5 of the mold assembly provided in the present invention is different from embodiment 1 in that, in this embodiment, the front and rear groove walls of the support groove extend vertically and are parallel to each other, that is, the groove opening of the support groove is not expanded.

[0056] Example 6 of the mold assembly provided in the present invention is different from Example 1 in that a slider is provided at the bottom of the base plate, and a guide rail is provided on the support plate body of the trolley, which slides with the slider and extends left and right. In this embodiment, the distance between the two support arms can be adjusted by sliding with the guide rail.

[0057] Embodiment 7 of the mold assembly provided in the present invention is different from embodiment 1 in that, in this embodiment, the supporting surface of the protrusion is a plane, and the bottom of the supporting groove is an upwardly convex arc surface.

[0058] In the embodiment of the mold support provided in the present invention, the structure of the mold support is the same as the structure of the mold support in any embodiment of the above-mentioned mold assembly, and will not be described in detail here.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A mold support, characterized in that: The invention comprises two support arms (5) arranged at intervals, wherein the interval direction of the two support arms (5) is defined as the left-right direction; a U-shaped support groove (7) is provided on the top surface of the support arm (5); the mold bracket further comprises a support block (6) eccentrically arranged on the casting mold (1) when in use, the support block (6) being used to fall into the support groove (7) from top to bottom and supported on the groove bottom of the support groove (7); a support surface of the support block (6) for cooperating with the groove bottom and at least one of the groove bottoms are arc-shaped surfaces, so that the support block (6) can swing relative to the support groove (7) around an axis extending left and right; a stop portion for cooperating with the groove walls on both sides of the support groove (7) is respectively provided on the front and rear sides of the support block (6); after the support block (6) falls into the support groove (7), it swings under the deadweight of the casting mold (1) until the support block (6) is stopped by the groove walls on both sides of the support groove (7) so that the casting mold (1) is arranged tilted.

2. The mold support according to claim 1, characterized in that The supporting groove (7) is a through groove that runs through left and right.

3. The mold support according to claim 1, characterized in that The support block (6) comprises a base (8) fixed on the casting mold (1) when in use, and a protrusion (9) threadedly mounted on the base (8), the protrusion (9) protruding from the base (8), and the protrusion (9) is used to fall into the support groove (7).

4. The mold support according to any one of claims 1 to 3, characterized in that: The support arm (5) includes a main arm (10) and an extension arm (11), the support groove (7) is provided at the top of the extension arm (11), the extension arm (11) can be telescopically adjusted relative to the main arm (10) to change the length of the support arm (5), and when the extension arm (11) can be telescopically adjusted relative to the main arm (10), the support arm (5) further includes a locking structure provided on the extension arm (11) and the main arm (10) to lock the extension arm (11) and the main arm (10) after they are adjusted into place.

5. A mold assembly, comprising a frame and a mold support arranged on the frame, characterized in that: The mold support comprises two support arms (5) arranged at intervals, and the spacing direction of the two support arms (5) is defined as the left-right direction; the top surface of the support arm (5) is provided with a U-shaped support groove (7), and the mold support further comprises a support block (6) eccentrically arranged on the casting mold (1) when in use, the support block (6) being used to fall into the support groove (7) from top to bottom and supported on the groove bottom of the support groove (7); the support surface of the support block (6) for cooperating with the groove bottom and at least one of the groove bottoms are arc-shaped surfaces, so that the support block (6) can swing relative to the support groove (7) around an axis extending left and right; the front and rear sides of the support block (6) are respectively provided with stop portions for cooperating with the groove walls on both sides of the support groove (7); after the support block (6) falls into the support groove (7), it swings under the deadweight of the casting mold (1) until the support block (6) and the groove walls on both sides of the support groove (7) are stopped front and back, so that the casting mold (1) is arranged tilted.

6. The mold assembly according to claim 5, wherein: The supporting groove (7) is a through groove that runs through left and right.

7. The mold assembly according to claim 5, wherein: The support block (6) comprises a base (8) fixed on the casting mold (1) when in use, and a protrusion (9) threadedly mounted on the base (8), the protrusion (9) protruding from the base (8), and the protrusion (9) is used to fall into the support groove (7).

8. The mold assembly according to any one of claims 5 to 7, characterized in that: The support arm (5) includes a main arm (10) and an extension arm (11), the support groove (7) is provided at the top of the extension arm (11), the extension arm (11) can be telescopically adjusted relative to the main arm (10) to change the length of the support arm (5), and when the extension arm (11) can be telescopically adjusted relative to the main arm (10), the support arm (5) further includes a locking structure provided on the extension arm (11) and the main arm (10) to lock the extension arm (11) and the main arm (10) after they are adjusted into place.

9. The mold assembly according to any one of claims 5 to 7, characterized in that: The notch of the support groove (7) is expanded.

10. The mold assembly according to any one of claims 5 to 7, characterized in that: The support arms (5) are mounted on the frame in a positionally adjustable manner along the left-right direction, so that the left-right spacing between the two support arms (5) is adjustable.

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