A self-locking mold hoisting device

Abstract

This utility model relates to the field of mold sleeve hoisting technology, and in particular to a self-locking mold sleeve hoisting device, comprising a mold sleeve and a hoisting rod. The mold sleeve is annular, and a hoisting groove is formed on the outer peripheral wall of the mold sleeve along the axial direction of the mold sleeve. The hoisting groove extends from one end face of the mold sleeve to the middle of the outer peripheral wall of the mold sleeve. Limiting grooves are provided on both opposite groove walls of the hoisting groove. A hanging structure is fixedly provided at the top end of the hoisting rod, and a hoisting block is fixedly provided at the bottom end of the hoisting rod. The hoisting block is slidably disposed in the hoisting groove, and both sides of the hoisting block extend into the limiting groove. A self-locking limiting structure is provided in the hoisting groove for restricting the hoisting block at the closed end when the hoisting rod is subjected to a downward force from the mold sleeve. The beneficial effects of this utility model are: this utility model can automatically limit the hoisting rod within the self-locking limiting structure when it is subjected to an upward force, thereby improving production efficiency, achieving high-efficiency production, and ensuring personnel safety.

Description

Technical Field

[0001] This utility model relates to the field of mold hoisting technology, and in particular to a self-locking mold hoisting device. Background Technology

[0002] Currently, in the profile extrusion process, it is often necessary to hoist the die sleeve accessories to the heating furnace for preheating. After preheating, the die sleeve accessories need to be hoisted and placed into the die base.

[0003] Currently, threaded booms are typically used to lift the mold sleeve. After the mold sleeve is lifted to the mold base, the boom needs to be disassembled before production can begin. However, existing equipment requires manual removal of the boom by hand, wearing high-temperature gloves and using tools, which greatly increases the risk of burns. Furthermore, the heating and expansion of the mold sleeve and boom makes disassembly difficult, causes severe thread wear, and shortens their lifespan. This results in prolonged mold placement time, low production efficiency, and poor safety. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a self-locking mold sleeve hoisting device to overcome the above-mentioned deficiencies in the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A self-locking mold sleeve hoisting device includes a mold sleeve and a hoisting rod. The mold sleeve is annular in shape. A hoisting groove is formed on the outer peripheral wall of the mold sleeve along the axial direction of the mold sleeve. The hoisting groove extends from one end face of the mold sleeve to the middle of the outer peripheral wall of the mold sleeve. One end of the hoisting groove that connects to the end face of the mold sleeve is an open end, and the other end that connects to the middle of the outer peripheral wall of the mold sleeve is a closed end. Limiting grooves are provided on both opposite groove walls of the hoisting groove, and the limiting grooves extend from the open end to the closed end. A hanging structure is fixedly provided at the top end of the hoisting rod, and a hoisting block is fixedly provided at the bottom end of the hoisting rod. The hoisting block is slidably disposed in the hoisting groove, and both sides of the hoisting block extend into the limiting groove. A self-locking limiting structure is provided in the hoisting groove for restricting the hoisting block at the closed end when the hoisting rod is subjected to a downward force from the mold sleeve.

[0006] The beneficial effects of this utility model are: when the lifting rod is subjected to an upward force, it can be automatically limited within the self-locking limiting structure. When the mold sleeve is placed on the mold base, the lifting rod is not subjected to a downward force from the mold sleeve and can disengage from the self-locking limiting structure, thereby sliding out of the lifting groove. This reduces mold changing time, improves production efficiency, achieves high-efficiency production, reduces production costs, and at the same time ensures personnel safety and reduces the risk of burns.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the self-locking limiting structure is an inclined surface disposed on the top of the limiting groove, and the inclined surface gradually extends from the open end to the closed end toward the outer peripheral wall of the mold sleeve.

[0009] The beneficial effects of adopting the above-mentioned further solution are: the self-locking limiting structure adopts an inclined surface set at the top of the limiting groove. When the lifting rod is subjected to the downward force of the mold sleeve, the lifting block moves along the inclined surface towards the closed end until it abuts the closed end. When the lifting rod is not subjected to the downward force of the mold sleeve, the lifting block can slide out from the open end along the lifting groove.

[0010] Furthermore, the bottom wall of the hanging groove and the bottom wall of the limiting groove are on the same plane, and the plane gradually extends from the open end to the closed end towards the outer peripheral wall of the mold sleeve.

[0011] The beneficial effects of adopting the above-mentioned further solution are: this setting can ensure that when the lifting rod is not subjected to the downward force of the mold sleeve, the lifting block descends to the bottom wall of the lifting groove. Due to the inclined setting at the bottom, the lifting block can automatically slide out of the lifting groove under the action of gravity, further reducing the intensity of manual labor and ensuring personnel safety.

[0012] Furthermore, the self-locking limiting structure is a slot provided at the closed end, the slot being located on the side of the limiting groove near the outer peripheral wall of the mold sleeve, and the slot communicating with the limiting groove.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the setting of the slot allows the lifting block to be below the moving slot and automatically engage in the slot when subjected to an upward force. When the mold sleeve moves to the mold base, the lifting block can be released from the slot under the action of gravity by relaxing the lifting rod, and then slide out of the slot.

[0014] Furthermore, the lifting groove and the two limiting grooves are connected to form a T-shaped groove, and the lifting block is slidably disposed in the T-shaped groove.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the lifting groove and the two limiting grooves form a T-shaped groove, which can restrict the lifting block within the lifting groove and prevent it from detaching from the opening of the lifting groove.

[0016] Furthermore, the lifting block has a trapezoidal structure, and the top walls of the two limiting grooves slide against the two sides of the lifting block.

[0017] The beneficial effects of adopting the above-mentioned further solution are: the lifting block adopts a trapezoidal structure, which increases the contact area between the lifting block and the top wall of the limiting groove, avoids damage to the lifting block caused by excessive downward force from the mold sleeve in a localized area, and improves the service life of the lifting block.

[0018] Furthermore, the bottom end of the lifting rod is integrally and fixedly connected to the lifting block.

[0019] The beneficial effect of adopting the above-mentioned further solution is to ensure the connection strength between the lifting block and the lifting rod.

[0020] Furthermore, the top of the lifting block is provided with a threaded hole, the bottom end of the lifting rod is provided with an external thread, and the bottom end of the lifting rod is threadedly connected to the threaded hole.

[0021] The advantage of adopting the above-mentioned further solution is that it facilitates the replacement of different lifting blocks as needed.

[0022] Furthermore, the mold sleeve includes an integrated front collar and a rear collar, which are coaxially arranged. The outer diameter of the front collar is smaller than that of the rear collar. The connection between the front collar and the rear collar forms a stepped structure. The lifting groove is provided on the rear collar, and the opening end of the lifting groove is located at the stepped structure. The bottom of the lifting groove is coplanar with the outer peripheral wall of the front collar.

[0023] The advantages of adopting the above-mentioned further solution are: the front collar and the rear collar can facilitate the positioning with the mold base, and at the same time, the bottom of the lifting groove is coplanar with the outer peripheral wall of the front collar, which makes it easy to slide the lifting block into the lifting groove.

[0024] Furthermore, the hanging structure is a lifting ring.

[0025] The advantages of adopting the above-mentioned further solution are: simple structure and convenient hoisting of the boom. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is the front view of the present invention;

[0028] Figure 3 This is a cross-sectional view of the mold in Embodiment 1 of this utility model;

[0029] Figure 4 This is a cross-sectional view of the mold sleeve in Embodiment 2 of this utility model;

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Mold sleeve; 11. Front collar; 12. Rear collar; 13. Stepped structure; 2. Hanging rod; 3. Hanging groove; 4. Open end; 5. Closed end; 6. Limiting groove; 7. Hanging block; 8. Inclined surface; 9. Slot; 10. Hanging ring. Detailed Implementation

[0032] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0033] Example 1

[0034] like Figure 1 , Figure 2 As shown, this embodiment includes a mold sleeve 1 and a lifting rod 2. The mold sleeve 1 is annular in shape and includes an integrated front collar 11 and a rear collar 12. The front collar 11 and the rear collar 12 are coaxially arranged. The outer diameter of the front collar 11 is smaller than the outer diameter of the rear collar 12. A stepped structure 13 is formed at the connection between the front collar 11 and the rear collar 12.

[0035] A hanging groove 3 is formed on the outer peripheral wall of the mold sleeve 1 along the axial direction of the mold sleeve 1. The hanging groove 3 extends from one end face of the mold sleeve 1 to the middle of the outer peripheral wall of the mold sleeve 1. One end of the hanging groove 3 that connects to the end face of the mold sleeve 1 is an open end 4, and the other end of the hanging groove 3 that connects to the middle of the outer peripheral wall of the mold sleeve 1 is a closed end 5. The hanging groove 3 is provided on the rear collar 12, and the open end 4 of the hanging groove 3 is provided at the stepped structure 13. The bottom of the hanging groove 3 is coplanar with the outer peripheral wall of the front collar 11.

[0036] Each of the two opposite walls of the hanging groove 3 is provided with a limiting groove 6, which extends from the open end 4 to the closed end 5. The top of the hanging rod 2 is fixedly provided with a hanging structure, preferably a hanging ring 10. The bottom of the hanging rod 2 is fixedly provided with a hanging block 7, which is slidably disposed in the hanging groove 3. Both sides of the hanging block 7 extend into the limiting groove 6, so that the hanging block 7 can slide back and forth along the length direction of the hanging groove 3 and the limiting groove 6, but cannot be disengaged from the opening of the hanging groove 3. The hanging groove 3 is provided with a self-locking limiting structure for restricting the hanging block 7 at the closed end 5 when the hanging rod 2 is subjected to the downward force of the mold sleeve 1.

[0037] like Figure 3 As shown, in this embodiment, the self-locking limiting structure is an inclined surface 8 disposed on the top of the limiting groove 6. The inclined surface 8 gradually extends from the open end 4 to the closed end 5 towards the outer peripheral wall of the mold sleeve 1. (Refer to Appendix) Figure 3 When the hanging groove 3 is set on the top of the mold sleeve 1, the horizontal height of the inclined surface 8 near the closed end 5 is higher than the horizontal height of the end near the open end 4. The self-locking limiting structure adopts the inclined surface 8 set on the top of the limiting groove 6. When the hanging rod 2 is subjected to the downward force of the mold sleeve 1, the hanging block 7 moves along the inclined surface 8 towards the closed end 5 until it abuts the closed end 5. When the hanging rod 2 is not subjected to the downward force of the mold sleeve 1, the hanging block 7 can slide out from the open end 4 along the hanging groove 3.

[0038] Preferably, in this embodiment, the bottom wall of the lifting groove 3 and the bottom wall of the limiting groove 6 are on the same plane, and the plane gradually extends from the open end 4 to the closed end 5 towards the outer peripheral wall of the mold sleeve 1. This setting can ensure that when the lifting rod 2 is not subjected to the downward force of the mold sleeve 1, the lifting block 7 descends to abut against the bottom wall of the lifting groove 3. Due to the inclined setting at the bottom, the lifting block 7 can automatically slide out of the lifting groove 3 under the action of gravity, further reducing the intensity of manual labor and ensuring personnel safety.

[0039] Working principle: When taking out the mold, the lifting block 7 is slid into the lifting groove 3 from the open end 4, and then slides to the closed end 5 of the lifting groove 3. The lifting ring 10 is hung on the crane hook. When the mold sleeve 1 is lifted, due to the setting of the inclined surface 8, the lifting block 7 is held at the closed end 5 of the lifting groove 3 to avoid slipping and to carry out stable lifting.

[0040] Once the mold sleeve 1 is installed, the lifting rod 2 is not subjected to the tension of the mold sleeve 1, and the lifting block 7 can slide along the length of the lifting groove 3. At this time, the lifting block 7 can be slid out of the lifting groove 3 and wait for the next use of the mold sleeve 1.

[0041] Example 2

[0042] like Figure 1 , Figure 2 As shown, this embodiment includes a mold sleeve 1 and a lifting rod 2. The mold sleeve 1 is annular in shape and includes an integrated front collar 11 and a rear collar 12. The front collar 11 and the rear collar 12 are coaxially arranged. The outer diameter of the front collar 11 is smaller than the outer diameter of the rear collar 12. A stepped structure 13 is formed at the connection between the front collar 11 and the rear collar 12.

[0043] A hanging groove 3 is formed on the outer peripheral wall of the mold sleeve 1 along the axial direction of the mold sleeve 1. The hanging groove 3 extends from one end face of the mold sleeve 1 to the middle of the outer peripheral wall of the mold sleeve 1. One end of the hanging groove 3 that connects to the end face of the mold sleeve 1 is an open end 4, and the other end of the hanging groove 3 that connects to the middle of the outer peripheral wall of the mold sleeve 1 is a closed end 5. The hanging groove 3 is provided on the rear collar 12, and the open end 4 of the hanging groove 3 is provided at the stepped structure 13. The bottom of the hanging groove 3 is coplanar with the outer peripheral wall of the front collar 11.

[0044] Each of the two opposite walls of the hanging groove 3 is provided with a limiting groove 6, which extends from the open end 4 to the closed end 5. The top of the hanging rod 2 is fixedly provided with a hanging structure, preferably a hanging ring 10. The bottom of the hanging rod 2 is fixedly provided with a hanging block 7, which is slidably disposed in the hanging groove 3. Both sides of the hanging block 7 extend into the limiting groove 6, so that the hanging block 7 can slide back and forth along the length direction of the hanging groove 3 and the limiting groove 6, but cannot be disengaged from the opening of the hanging groove 3. The hanging groove 3 is provided with a self-locking limiting structure for restricting the hanging block 7 at the closed end 5 when the hanging rod 2 is subjected to the downward force of the mold sleeve 1.

[0045] like Figure 4 As shown, in this embodiment, the self-locking limiting structure is a slot 9 provided on the closed end 5. The slot 9 is located on the side of the limiting groove 6 near the outer peripheral wall of the mold sleeve 1. The slot 9 is connected to the limiting groove 6. The slot 9 allows the lifting block 7 to be below the moving slot 9 and to automatically engage with the slot 9 when subjected to an upward force. When the mold sleeve 1 moves to the mold base, the lifting block 7 can be released from the slot 9 under the action of gravity by releasing the lifting rod 2, and then slide out from the lifting groove 3.

[0046] Preferably, in this embodiment, the bottom wall of the lifting groove 3 and the bottom wall of the limiting groove 6 are on the same plane, and the plane gradually extends from the open end 4 to the closed end 5 towards the outer peripheral wall of the mold sleeve 1. This setting can ensure that when the lifting rod 2 is not subjected to the downward force of the mold sleeve 1, the lifting block 7 descends to abut against the bottom wall of the lifting groove 3. Due to the inclined setting at the bottom, the lifting block 7 can automatically slide out of the lifting groove 3 under the action of gravity, further reducing the intensity of manual labor and ensuring personnel safety.

[0047] Working principle: When taking out the mold, the lifting block 7 is slid into the lifting groove 3 from the open end 4, and then slid to the closed end 5 of the lifting groove 3. The lifting ring 10 is hung on the crane hook. When the mold sleeve 1 is lifted, due to the effect of gravity, the lifting block 7 is locked into the slot 9 to prevent slippage and to carry out stable lifting.

[0048] Once the mold sleeve 1 is installed, the lifting rod 2 is not under the tension of the mold sleeve 1, and the lifting block 7 can directly detach from the slot downwards. Then, the lifting block 7 can slide along the length of the lifting groove 3. At this time, the lifting block 7 can be slid out of the lifting groove 3 and wait for the next use of the mold sleeve 1.

[0049] Example 3

[0050] Based on Embodiment 1 and Embodiment 2, the following improvements can be made to this embodiment: the hanging groove 3 and the two limiting grooves 6 are connected to form a T-shaped groove, and the hanging block 7 is slidably disposed in the T-shaped groove. The hanging groove 3 and the two limiting grooves 6 form a T-shaped groove, which can restrict the hanging block 7 in the hanging groove 3 so that it will not detach from the opening of the hanging groove 3.

[0051] Example 4

[0052] Based on Embodiments 1 and 2, this embodiment can be further improved as follows: the lifting block 7 has a trapezoidal structure, and the top walls of the two limiting grooves 6 slide against the two sides of the lifting block 7. The trapezoidal structure of the lifting block 7 increases the contact area between the lifting block 7 and the top walls of the limiting grooves 6, preventing damage to the lifting block 7 due to excessive downward force from the mold sleeve 1, and improving the service life of the lifting block 7.

[0053] In the above embodiments one to four, the bottom end of the lifting rod 2 is integrally fixedly connected to the top of the lifting block 7, or the top of the lifting block 7 is provided with a threaded hole, the bottom end of the lifting rod 2 is provided with an external thread, and the bottom end of the lifting rod 2 is threadedly connected to the threaded hole.

[0054] This invention can automatically limit the lifting rod 2 to a self-locking limiting structure when it is subjected to an upward force. When the mold sleeve 1 is placed on the mold base, the lifting rod 2 is not subjected to a downward force from the mold sleeve 1 and can disengage from the self-locking limiting structure and slide out of the lifting groove 3. This reduces mold changing time, improves production efficiency, achieves high-efficiency production, reduces production costs, and ensures personnel safety by reducing the risk of burns.

[0055] In the description of this utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0056] In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking mold sleeve lifting device, characterized by, Includes a mold sleeve (1) and a lifting rod (2). The mold sleeve (1) is annular. A lifting groove (3) is formed on the outer peripheral wall of the mold sleeve (1) along the axial direction of the mold sleeve (1). The lifting groove (3) extends from one end face of the mold sleeve (1) to the middle of the outer peripheral wall of the mold sleeve (1). One end of the lifting groove (3) that connects to the end face of the mold sleeve (1) is an open end (4), and the other end of the lifting groove (3) that connects to the middle of the outer peripheral wall of the mold sleeve (1) is a closed end (5). Limiting devices are provided on both opposite groove walls of the lifting groove (3). The limiting groove (6) extends from the open end (4) to the closed end (5); the top end of the lifting rod (2) is fixedly provided with a hanging structure, and the bottom end of the lifting rod (2) is fixedly provided with a lifting block (7). The lifting block (7) is slidably disposed in the lifting groove (3), and both sides of the lifting block (7) extend into the limiting groove (6); the lifting groove (3) is provided with a self-locking limiting structure for restricting the lifting block (7) at the closed end (5) when the lifting rod (2) is subjected to the downward force of the mold sleeve (1).

2. The self-locking mold sleeve hoisting device according to claim 1, characterized in that, The self-locking limiting structure is an inclined surface (8) set on the top of the limiting groove (6), and the inclined surface (8) gradually extends from the open end (4) to the closed end (5) towards the outer peripheral wall of the mold sleeve (1).

3. The self-locking mold sleeve hoisting device according to claim 2, characterized in that, The bottom wall of the hanging groove (3) and the bottom wall of the limiting groove (6) are on the same plane, and the plane gradually extends from the open end (4) to the closed end (5) towards the outer peripheral wall of the mold sleeve (1).

4. The self-locking mold sleeve hoisting device according to claim 1, characterized in that, The self-locking limiting structure is a slot (9) provided on the closed end (5). The slot (9) is located on the side of the limiting groove (6) near the outer peripheral wall of the mold sleeve (1). The slot (9) is connected to the limiting groove (6).

5. A self-locking mold sleeve hoisting device according to any one of claims 1 to 4, characterized in that, The hanging groove (3) and the two limiting grooves (6) are connected to form a T-shaped groove, and the hanging block (7) is slidably disposed in the T-shaped groove.

6. A self-locking mold sleeve hoisting device according to any one of claims 1 to 4, characterized in that, The lifting block (7) has a trapezoidal structure, and the top walls of the two limiting grooves (6) slide against the two sides of the lifting block (7).

7. A self-locking mold sleeve hoisting device according to any one of claims 1 to 4, characterized in that, The bottom end of the lifting rod (2) is integrally and fixedly connected to the lifting block (7).

8. A self-locking mold sleeve hoisting device according to any one of claims 1 to 4, characterized in that, The top of the lifting block (7) is provided with a threaded hole, and the bottom end of the lifting rod (2) is provided with an external thread. The bottom end of the lifting rod (2) is threadedly connected to the threaded hole.

9. A self-locking mold sleeve hoisting device according to any one of claims 1 to 4, characterized in that, The mold sleeve (1) includes an integrated front collar (11) and a rear collar (12), which are coaxially arranged. The outer diameter of the front collar (11) is smaller than that of the rear collar (12). A stepped structure (13) is formed at the connection between the front collar (11) and the rear collar (12). The hanging groove (3) is provided on the rear collar (12), and the opening end (4) of the hanging groove (3) is provided at the stepped structure (13). The bottom of the hanging groove (3) is coplanar with the outer peripheral wall of the front collar (11).

10. A self-locking mold sleeve hoisting device according to any one of claims 1 to 4, characterized in that, The hanging structure is a lifting ring (10).

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