Cold drawing machine core rod lifting device
By using an electric push rod and a motor-driven lifting device, the stress problem of the cold-drawn core rod during unloading of the inner mold is solved, thereby reducing friction and preventing bending deformation, and improving the service life and unloading efficiency of the core rod.
Patent Information
- Application Number
- CN202423119549.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing cold-drawing machine core rods are prone to stress due to the gravity of the inner mold during unloading, leading to bending deformation and damage of the core rod. Furthermore, the lack of an effective auxiliary rolling fit mechanism results in high friction and difficulty in unloading.
An electric push rod drives a concave bracket to support the lifting roller for raising and lowering, which is combined with a motor to drive the lifting roller to rotate. Wear-resistant sleeves are used to reduce friction, and the installation of the lifting assembly is adjusted according to the length of the core rod.
It effectively keeps the core rod straight, reduces friction damage, extends the life of the core rod, simplifies the unloading process, and reduces the difficulty of manual operation.
Smart Images

Figure CN223789213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cold-drawn machine core rod lifting accessories, and in particular to a cold-drawn machine core rod lifting device. Background Technology
[0002] Currently, after the workpiece is drawn and removed from the inner mold, a gap is created between the inner and outer molds in the cold drawing machine. The inner mold will sag due to its own weight. Since the inner mold is installed at the head end of the core rod of the cold drawing machine and the inner mold is relatively heavy, while the other end of the core rod is connected to the push beam and the middle part is suspended, the core rod will be subjected to great stress. This not only makes it difficult to unload the inner mold, but also easily causes the core rod to bend and deform, leading to damage. Therefore, when unloading the inner mold, workers have to operate manually and use some tools to lift and support the core rod.
[0003] The publication number CN201157852Y discloses a core rod lifting device for a hydraulic cold drawing machine. The device consists of a lifting base and a V-groove pulley for lifting the device. The V-groove pulley is set on the lifting rod of the lifting base. There can be one V-groove pulley or several V-groove pulleys arranged side by side.
[0004] The existing technology also has the following drawbacks: the lack of an auxiliary rolling cooperation mandrel sliding mechanism results in high friction between the sliding component and the mandrel. To address this, we propose a mandrel lifting device for cold drawing machines. Summary of the Invention
[0005] The main purpose of this utility model is to provide a cold-drawn core rod lifting device, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] A cold-drawn core rod lifting device includes a lifting assembly body, which includes an electric push rod, a concave bracket, a lifting roller, and a motor. The bottom of the electric push rod is provided with a fixed seat. The concave bracket is bolted to the top of the electric push rod. The lifting roller is disposed between the inner sides of the concave bracket. The motor is screwed to the top of the outer side of the concave bracket.
[0008] Furthermore, the bottom of the fixed seat is fitted with an anti-slip pad, which is made of silicone material, and the lifting roller is surrounded by an inherent wear-resistant sleeve, which is made of perfluoroether rubber.
[0009] Furthermore, the top surface of the fixed base is provided with evenly spaced fixing holes around the electric push rod.
[0010] Furthermore, the drive end of the electric push rod is connected to the concave bracket.
[0011] Furthermore, a rotating shaft is connected between the concave bracket and the lifting roller, and the motor drive shaft is connected to the rotating shaft of the lifting roller.
[0012] Furthermore, the lifting component body is provided with multiple sets; the multiple sets of the lifting component body facilitate the assembly according to the length of the core rod.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] By setting up an electric push rod, a concave bracket, a lifting roller, and a motor, the electric push rod drives the inner side of the concave bracket to lift and lower the lifting roller, which then contacts the core rod to provide auxiliary support and keep the core rod in a straight position. The motor drives the lifting roller to rotate, which moves in tandem with the core rod, thus reducing friction between the two and preventing wear.
[0015] By setting a wear-resistant sleeve, which directly contacts the core rod, the friction resistance is further improved, and the wear-resistant sleeve also provides good high-temperature resistance for the perfluoroether rubber. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a cold-drawn core rod lifting device according to the present invention.
[0017] Figure 2 This is a schematic diagram of the concave bracket structure of a cold-drawn core rod lifting device according to the present invention.
[0018] Figure 3 This is a schematic diagram of the lifting roller structure of a cold-drawn core rod lifting device according to this utility model.
[0019] In the diagram: 1. Fixed base; 2. Anti-slip pad; 3. Electric push rod; 4. Fixing hole; 5. Concave bracket; 6. Lifting roller; 7. Rotary shaft; 8. Wear-resistant sleeve; 9. Motor; 10. Lifting assembly body. Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] like Figure 1-3 As shown, a cold-drawn core rod lifting device includes a lifting assembly body 10. The lifting assembly body 10 includes an electric push rod 3, a concave bracket 5, a lifting roller 6, and a motor 9. The electric push rod 3 is provided with a fixed seat 1 at its bottom. The concave bracket 5 is bolted to the top of the electric push rod 3. The lifting roller 6 is disposed between the inner sides of the concave bracket 5. The motor 9 is screwed to the top of the outer side of the concave bracket 5.
[0022] The fixed base 1 has an anti-slip pad 2 attached to its bottom, the anti-slip pad 2 being made of silicone material, and the lifting roller 6 has an wear-resistant sleeve 8 on its outer periphery, the wear-resistant sleeve 8 being made of perfluoroether rubber.
[0023] In this embodiment, as shown... Figure 1 , 3 As shown, the wear-resistant sleeve 8 is made of perfluoroether rubber, which has a high temperature resistance effect.
[0024] The top surface of the fixed base 1 is provided with fixed holes 4 evenly distributed around the electric push rod 3.
[0025] In this embodiment, as shown... Figure 1 As shown, it is connected and fixed to the cold drawing machine through the fixing hole 4 on the surface of the fixing seat 1.
[0026] The drive end of the electric push rod 3 is connected to the concave bracket 5.
[0027] In this embodiment, as shown... Figure 1 , 2 As shown in Figure 3, the concave bracket 5 supports the inner lifting roller 6 for raising and lowering by the electric push rod 3.
[0028] The concave bracket 5 is connected to the lifting roller 6 by a rotating shaft 7, and the drive shaft of the motor 9 is connected to the rotating shaft of the lifting roller 6.
[0029] In this embodiment, as shown... Figure 1 , 2 As shown in Figures 3 and 4, the lifting roller 6 is supported by the rotating shaft 7.
[0030] The lifting component body 10 is provided with multiple sets.
[0031] In this embodiment, as shown... Figure 1 As shown, the lifting assembly body 10 is used to assist in supporting the cold-drawn core rod.
[0032] It should be noted that this utility model is a core rod lifting device for a cold drawing machine. The lifting component body 10 can be installed according to the required length of the core rod. During installation, it is connected and fixed to the cold drawing machine through the fixing holes 4 on the surface of the fixing seat 1. Next, the electric push rod 3 and the motor 9 are connected to an external power source. During operation, the electric push rod 3 drives the concave bracket 5 to support the inner lifting roller 6 to rise and fall, contacting the core rod to provide lifting and auxiliary support, so as to keep the core rod in a straight state. At the same time, the motor 9 drives the lifting roller 6 to rotate and move in coordination with the core rod to roll, so as to reduce the friction between the two. The wear-resistant sleeve 8 is used to further improve the friction resistance.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cold-drawn movement rod lifting device, comprising a lifting assembly body (10), characterized in that, The lifting assembly body (10) includes an electric push rod (3), a concave bracket (5), a lifting roller (6), and a motor (9). The electric push rod (3) has a fixed seat (1) at its bottom. The concave bracket (5) is bolted to the top of the electric push rod (3). The lifting roller (6) is located between the inner sides of the concave bracket (5). The motor (9) is screwed to the top of the outer side of the concave bracket (5).
2. The cold-drawn core rod lifting device according to claim 1, characterized in that: The bottom of the fixed seat (1) is fitted with an anti-slip pad (2), which is made of silicone material. The lifting roller (6) is fitted with an wear-resistant sleeve (8), which is made of perfluoroether rubber.
3. The cold-drawn core rod lifting device according to claim 1, characterized in that: The top surface of the fixed base (1) is provided with evenly spaced fixing holes (4) around the electric push rod (3).
4. The cold-drawn core rod lifting device according to claim 1, characterized in that: The drive end of the electric push rod (3) is connected to the concave bracket (5).
5. The cold-drawn core rod lifting device according to claim 1, characterized in that: A rotating shaft (7) is connected between the concave bracket (5) and the lifting roller (6), and the drive shaft of the motor (9) is connected to the rotating shaft of the lifting roller (6).
6. The cold-drawn core rod lifting device according to claim 1, characterized in that: The lifting component body (10) is provided with multiple sets.
Citation Information
Patent Citations
Core rod lifting apparatus of cold drawing machine
CN201157852Y