A jack for mold repair

Abstract

The utility model discloses a kind of jacks for mould maintenance, it is related to jack technical field, including base, cylinder body, screw rod and support head, the base is set at the bottom of cylinder body, for stably supporting entire device on work plane, the cylinder body is a hollow structure, and inside formation accommodating space, the screw rod is set in the accommodating space of cylinder body and can be lifted rotation, screw rod is connected by thread cooperation between with cylinder body, the support head is fixedly connected to the top end of screw rod, adjusting hole is opened in the support head, handle is also fixedly arranged on the outer wall of cylinder body.The utility model is safe and reliable, provide the stable support specially used for mould maintenance, effectively prevent the work injury accident and the damage risk to precision workpiece caused by the accidental drop of inclined jack block, guarantee personnel and equipment safety, improve efficiency, save working hours, applicability is strong, good universality is convenient for handling.

Description

Technical Field

[0001] This utility model relates to the field of jack technology, and in particular to a jack for mold repair. Background Technology

[0002] In the maintenance and repair of injection molds, the disassembly and assembly of large ejector blocks (or large slide blocks) is a common and important task. Currently, there is a general lack of dedicated safety support tools for this type of operation. Maintenance personnel typically use shims, simple supports, or other temporary methods to support the removed ejector blocks, which has significant drawbacks:

[0003] 1. Poor safety: The existing support method is unstable. If the inclined blocks or large mechanical parts fall off the support points due to accidents (such as crane swaying or operational errors), they can easily injure the hands or bodies of operators, posing a serious safety hazard. At the same time, the fallen inclined blocks themselves may also be damaged by impact, causing property damage.

[0004] 2. Inefficient and prone to damaging workpieces: Temporarily finding and stacking support blocks is time-consuming and labor-intensive, wasting maintenance time. More importantly, it is difficult to ensure the stability of the support and the parallelism of the upper and lower support surfaces. Non-parallel supports may cause the inclined blocks to be in an unstable state or to bear uneven stress, which can easily cause secondary damage such as scratches and deformation to the precision inclined blocks during maintenance.

[0005] 3. Insufficient adaptability: The maintenance space height varies for different molds, and temporary supports are difficult to adjust to the appropriate height quickly and accurately, failing to meet the needs of various working conditions.

[0006] Therefore, it is necessary to design a jack for mold repair to improve the above problems. Utility Model Content

[0007] To address the aforementioned problems in the prior art, this utility model provides a mold repair jack that is simple in structure, easy to operate, safe and reliable, and height adjustable, thereby overcoming the safety hazards, low efficiency, and easy damage to workpieces in the prior art.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A jack for mold repair includes a base, a cylinder, a lead screw, and a support head. The base is located at the bottom of the cylinder and is used to stably support the entire device on the working plane. The cylinder is a hollow structure with an internal accommodating space. The lead screw is located within the accommodating space of the cylinder and can be raised, lowered, and rotated. The lead screw and the cylinder are connected by a threaded connection. The support head is fixedly connected to the top of the lead screw and has an adjustment hole. A handle is also fixedly installed on the outer wall of the cylinder.

[0010] As a preferred embodiment of this invention, the adjustment holes are symmetrically arranged on the support head.

[0011] As a preferred embodiment of this invention, the diameter of the adjustment hole is 12mm.

[0012] As a preferred embodiment of this invention, the diameter of the support head is not less than 80mm.

[0013] As a preferred embodiment of this invention, the handle is welded to the cylinder body.

[0014] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are:

[0015] 1. This utility model provides a safe and reliable jack for mold repair: it provides a stable support specifically for mold repair, effectively preventing work-related accidents caused by accidental detachment of the jack block and the risk of damage to precision workpieces, thus ensuring the safety of personnel and equipment.

[0016] 2. This utility model provides a jack for mold repair, which improves efficiency and saves time: there is no need to temporarily find a pad, and it can be quickly and accurately adjusted to any required height (within the stroke range) through a simple rotation operation, which greatly shortens the preparation time and improves the efficiency of maintenance work;

[0017] 3. The present invention provides a jack for mold repair, which protects the workpiece: the support head has a large contact surface with the workpiece, and the parallelism of the support plane can be ensured by adjustment, so as to avoid deformation or damage of the inclined jack block due to unstable support or uneven force.

[0018] 4. The jack for mold repair of this utility model has strong applicability: the adjustable height design allows it to adapt to the operation needs of different mold models and different repair spaces, and has good versatility;

[0019] 5. The present invention provides a jack for mold repair that is easy to move: the handle makes it easy and convenient to move heavy devices. Attached Figure Description

[0020] Other objects and results of this invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings, and with a more complete understanding of the invention. In the drawings:

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is the front view of this utility model;

[0023] Figure 3 yes Figure 2Sectional view along the middle AA direction;

[0024] Figure 4 yes Figure 2 Sectional view along the BB direction;

[0025] The attached reference numerals include: base 1, cylinder 2, lead screw 3, support head 4, handle 5, and adjustment hole 41. Detailed Implementation

[0026] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. It should be pointed out that all accompanying drawings are exemplary representations. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0030] Reference Figures 1 to 4 , Figure 1 This is a perspective view of the present invention. Figure 2 This is the front view of this utility model. Figure 3 yes Figure 2 Sectional view along the AA direction. Figure 4 yes Figure 2A cross-sectional view along the BB direction shows a mold repair jack provided by this utility model, comprising a base 1, a cylinder 2, a lead screw 3, a support head 4, and a handle 5. The base 1 is located at the bottom of the cylinder 2, providing stable support for the entire device on the working plane. The base 1 is preferably disc-shaped. The cylinder 2 is a hollow structure, preferably cylindrical, forming an internal accommodating space. The lead screw 3 is located within this accommodating space and can be raised, lowered, and rotated. The lead screw 3 is threadedly connected to the cylinder 2. The support head 4 is fixedly connected to the top of the lead screw 3. The top of the support head 4 is flat and used to support the workpiece. The support head 4 is preferably cylindrical with a diameter of not less than 80 mm. The support head 4 is provided with adjustment holes 41. Specifically, the support head 4 is provided with adjustment holes 41 radially on its side. The adjustment holes 41 can be through holes or non-through holes. The adjustment holes 41 are preferably symmetrically arranged on the support head 4, and four adjustment holes 41 can be arranged in a cross direction. The diameter of the adjustment holes 41 is 12 mm. A handle 5 is also fixedly provided on the outer wall of the cylinder body 2 for easy gripping and handling. The handle 5 is preferably welded to the cylinder body 2.

[0031] The following will refer to Figures 1 to 4 The working principle of this utility model will be explained.

[0032] In use, the jack is hoisted to its minimum height of 355mm using an overhead crane. The operator holds handle 5 and moves the jack below the jack block to be supported. A metal rod (such as the long end of a wrench) is inserted into the adjustment hole 41 and rotated forcefully. The support head 4 drives the lead screw 3 to rotate together. Under the action of the threaded pair, the rotating lead screw 3 moves axially relative to the fixed cylinder 2, thereby achieving stepless adjustment of the support height. Clockwise rotation raises the jack, and counterclockwise rotation lowers it. Once adjusted to a suitable height so that the support head 4 is fully stressed, safe support can be achieved. After the operation is completed, the lead screw 2 is rotated in the opposite direction to lower the height of the device, allowing it to be removed from under the workpiece. This utility model can adjust the height of the jack according to the height of the maintenance space to provide support for the slider and mechanical parts. It has a maximum load capacity of 5T, protects maintenance personnel and the jack block, and saves maintenance time.

[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A jack for mold repair, characterized in that, The device includes a base, a cylinder, a lead screw, and a support head. The base is located at the bottom of the cylinder and is used to stably support the entire device on the working plane. The cylinder is a hollow structure with an internal accommodating space. The lead screw is located within the accommodating space of the cylinder and can be raised, lowered, and rotated. The lead screw and the cylinder are connected by a threaded connection. The support head is fixedly connected to the top of the lead screw and has an adjustment hole. A handle is also fixedly installed on the outer wall of the cylinder.

2. The jack for mold repair according to claim 1, characterized in that, The adjustment holes are symmetrically arranged on the support head.

3. The jack for mold repair according to claim 1, characterized in that, The diameter of the adjustment hole is 12mm.

4. The jack for mold repair according to claim 1, characterized in that, The diameter of the support head is not less than 80mm.

5. A jack for mold repair according to claim 1, characterized in that, The handle is welded to the cylinder body.

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