Composite sleeve drawing device

By designing the unloading mechanism, driving mechanism, and receiving mechanism of the composite sleeve pulling device, the safety risks caused by manual unloading were solved, and the rapid, safe unloading and efficient production of sleeves were achieved.

CN224208811UActive Publication Date: 2026-05-08DEXIN STEEL PIPE CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DEXIN STEEL PIPE CHINA
Filing Date
2025-07-08
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The unloading operation of existing composite sleeve drawing machines relies on manual labor, which increases safety risks and easily leads to accidents involving operators.

Method used

Design a composite sleeve pulling device that includes a unloading mechanism, a driving mechanism, a receiving mechanism, and a limiting mechanism. By unloading the material mechanically, the operation difficulty and safety risks can be reduced.

Benefits of technology

This enables rapid and safe unloading of the casing, reduces operational difficulty and labor intensity, and improves work efficiency and the applicability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a composite casing pipe drawing device which comprises a drawing machine, a discharging mechanism and a screw rod movably connected to the upper side of the drawing machine through a bearing, the surface of the screw rod is in threaded connection with a lifting seat, the inner wall of the lifting seat is in sliding connection with four limiting columns, the bottoms of the limiting columns are fixedly connected to the upper side of the drawing machine, and the discharging mechanism is arranged on the lower side of the drawing machine. The top of the lifting seat is fixedly connected with a base, a sleeve is placed in the base, inclined frames are arranged on the front side and the rear side of the base correspondingly, the bottoms of the inclined frames are fixedly connected to the upper side of a drawing machine, and a driving mechanism is arranged on the upper side of the drawing machine. When the discharging device is used, under the synergistic effect of the discharging mechanism, the driving mechanism, the material receiving mechanism and the limiting mechanism of the discharging mechanism, rapid discharging can be achieved through machinery, safety risk increase caused by manual discharging of the drawing machine is avoided, and the discharging device has the advantage of being convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of composite sleeve processing technology, specifically a composite sleeve pulling device. Background Technology

[0002] A composite sleeve drawing machine is a special equipment used to manufacture composite pipes. It uses a mechanical diameter reduction (drawing) process to tightly bond the outer base pipe and the inner liner pipe to form a mechanical interference fit.

[0003] For example, Chinese Patent Application No. 201520058611.1 discloses a composite tube drawing device, including a workbench for placing tubes and a drawing frame. The two ends of the drawing frame are hinged with drive shafts. One end of the drive shaft of the drawing frame is connected to the rotating shaft of a motor through a sprocket and a chain. A drive chain is connected to the drive shaft through a sprocket. A drawing trolley is fixedly connected to the drive chain. The drawing trolley has several slots. The two ends of the workbench are fixed with clamps. The outer tube of the composite tube is placed in the arc-shaped groove of the clamp. A stainless steel inner tube is inserted into the outer tube. One end of the stainless steel inner tube has an outwardly bent flange. A pull rod is inserted into the stainless steel inner tube. One end of the pull rod is inserted into the slot of the drawing trolley and fixed with a stop block. The stop block abuts against the drawing trolley. The other end of the pull rod passes through a cylindrical elastic drawing head and is screwed with a nut. The outer diameter of the elastic drawing head is larger than the inner wall diameter of the stainless steel inner tube. It pulls the inner tube of the composite tube, causing the inner tube to fit tightly against the inner wall of the outer tube, thus achieving the composite effect.

[0004] In the conventional operation of composite sleeve drawing machines, unloading is usually done manually. However, this long-term reliance on manual operation significantly increases safety risks, making it easy for operators to cause accidents due to fatigue, negligence, or other factors, resulting in injuries or fatalities.

[0005] Therefore, it is necessary to redesign the composite sleeve pulling device to effectively prevent the increase of safety risks. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a composite sleeve pulling device that is easy to use and solves the problem of increased safety risks.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a composite sleeve drawing device, including a drawing machine and a unloading mechanism, including a screw movably connected to the upper side of the drawing machine via a bearing, a lifting seat threadedly connected to the surface of the screw, four limiting posts slidably connected to the inner wall of the lifting seat, the bottom of the limiting posts being fixedly connected to the upper side of the drawing machine, a base being fixedly connected to the top of the lifting seat, a sleeve being placed inside the base, tilting frames being provided on both the front and rear sides of the base, the bottom of the tilting frames being fixedly connected to the upper side of the drawing machine, and a driving mechanism being provided on the upper side of the drawing machine.

[0008] As a preferred embodiment of this utility model, the driving mechanism includes a support plate fixedly connected to the upper side of the drawing machine, a motor fixedly connected to the inner wall of the support plate, a transmission wheel fixedly connected to the bottom output shaft and the surface of the screw of the motor, a transmission belt sleeved on the surface of the transmission wheel, and a material receiving mechanism provided on the left side of the drawing machine.

[0009] As a preferred embodiment of this utility model, the receiving mechanism includes a support frame disposed on the left side of the drawing machine, a receiving frame fixedly connected to the top of the support frame, a receiving frame fixedly connected to the surface of the receiving frame, and a limit mechanism disposed on the upper side of the drawing machine.

[0010] As a preferred embodiment of this utility model, the limiting mechanism includes two insert blocks fixedly connected to the right side of the receiving frame. The top of the insert blocks is provided with a slot, and a card block is slidably connected to the inner wall of the slot. A fixing frame is slidably connected to the surface of the card block. The right side of the fixing frame is fixedly connected to the left side of the tilting frame, and a synchronization plate is fixedly connected to the top of the card block.

[0011] As a preferred embodiment of this utility model, a handle is fixedly connected to the left side of the receiving rack, the handle can conveniently drive the receiving mechanism to move, and casters are fixedly connected to the bottom of the support frame.

[0012] As a preferred embodiment of this invention, a retaining ring is fixedly connected to the surface of the screw, and the bottom of the retaining ring contacts the top of the transmission wheel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When this utility model is used, under the action of the unloading mechanism, the driving mechanism, the receiving mechanism and the limiting mechanism, it can quickly unload materials mechanically, avoiding the increased safety risks caused by manual unloading of the drawing machine, and making it easy to use.

[0015] 2. By setting up a drive mechanism, this utility model can provide stable power output. The power is transmitted to the screw through the transmission belt, so that the screw can rotate smoothly, thereby driving the lifting seat to move and realize the unloading operation of the sleeve, reducing the difficulty of operation and labor intensity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the unloading mechanism and the driving mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the material receiving mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the separation of the limiting mechanism of this utility model.

[0020] In the diagram: 1. Drawing machine; 2. Screw; 3. Lifting seat; 4. Limiting post; 5. Base; 6. Sleeve; 7. Inclined frame; 8. Support plate; 9. Motor; 10. Drive wheel; 11. Drive belt; 12. Support frame; 13. Receiving frame; 14. Receiving box; 15. Insert block; 16. Slot; 17. Locking block; 18. Fixing frame; 19. Synchronizing plate; 20. Handle; 21. Caster wheel; 22. Retaining ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 4 As shown, the present invention provides a composite sleeve drawing device, including a drawing machine 1 and a unloading mechanism. The unloading mechanism includes a screw 2 movably connected to the upper side of the drawing machine 1 via a bearing. A lifting seat 3 is threadedly connected to the surface of the screw 2. Four limiting posts 4 are slidably connected to the inner wall of the lifting seat 3. The bottom of the limiting posts 4 is fixedly connected to the upper side of the drawing machine 1. A base 5 is fixedly connected to the top of the lifting seat 3. A sleeve 6 is placed inside the base 5. Inclined frames 7 are provided on both the front and rear sides of the base 5. The bottom of the inclined frames 7 is fixedly connected to the upper side of the drawing machine 1. A driving mechanism is provided on the upper side of the drawing machine 1.

[0023] refer to Figure 2 The drive mechanism includes a support plate 8 fixedly connected to the upper side of the drawing machine 1. A motor 9 is fixedly connected to the inner wall of the support plate 8. A transmission wheel 10 is fixedly connected to the bottom output shaft of the motor 9 and the surface of the screw 2. A transmission belt 11 is sleeved on the surface of the transmission wheel 10. A receiving mechanism is provided on the left side of the drawing machine 1.

[0024] As a technical optimization of this utility model, by setting a drive mechanism, a stable power output can be provided. The power is transmitted to the screw 2 through the transmission belt 11, so that the screw 2 can rotate smoothly, thereby driving the lifting seat 3 to move and realize the unloading operation of the sleeve 6, reducing the difficulty of operation and labor intensity.

[0025] refer to Figure 3 The receiving mechanism includes a support frame 12 located on the left side of the drawing machine 1, a receiving frame 13 fixedly connected to the top of the support frame 12, a receiving frame 14 fixedly connected to the surface of the receiving frame 13, and a limit mechanism provided on the upper side of the drawing machine 1.

[0026] As a technical optimization of this utility model, by setting up a receiving mechanism, the sleeve 6 that slides down from the inclined frame 7 can be accurately caught, preventing the sleeve 6 from falling and being damaged during the unloading process, and ensuring the integrity and safety of the sleeve 6 after unloading.

[0027] refer to Figure 4 The limiting mechanism includes two insert blocks 15 fixedly connected to the right side of the receiving rack 13. A slot 16 is provided on the top of the insert block 15. A block 17 is slidably connected to the inner wall of the slot 16. A fixed frame 18 is slidably connected to the surface of the block 17. The right side of the fixed frame 18 is fixedly connected to the left side of the tilting frame 7. A synchronization plate 19 is fixedly connected to the top of the block 17.

[0028] As a technical optimization of this utility model, by setting a limiting mechanism, the receiving rack 13 can be conveniently and quickly positioned and fixed. This ensures the accurate positioning of the receiving rack 13; when it is necessary to move the receiving rack 13, simply pull the locking block 17 out of the locking slot 16. The operation is simple and improves work efficiency.

[0029] refer to Figure 3 A handle 20 is fixedly connected to the left side of the receiving frame 13. The handle 20 can easily drive the receiving mechanism to move. A caster wheel 21 is fixedly connected to the bottom of the support frame 12.

[0030] As a technical optimization of this utility model, by setting a handle 20, it is convenient for operators to move the receiving mechanism. The bottom of the support frame 12 is equipped with casters 21, which enables the receiving mechanism to move flexibly in different positions to adapt to different production needs and site layouts, thereby improving the applicability and flexibility of the device.

[0031] refer to Figure 2 A retaining ring 22 is fixedly connected to the surface of the screw 2, and the bottom of the retaining ring 22 is in contact with the top of the transmission wheel 10.

[0032] As a technical optimization of this utility model, by setting a retaining ring 22, the bottom of the retaining ring 22 contacts the top of the transmission wheel 10, which can effectively prevent the lifting seat 3 from descending excessively and squeezing the transmission wheel 10, thereby extending the service life of the device.

[0033] The working principle and usage process of this utility model are as follows: During use, the motor 9 of the drive mechanism starts, and the transmission wheel 10 on the bottom output shaft of the motor 9 drives the transmission wheel 10 on the screw 2 to rotate via the transmission belt 11, thereby causing the screw 2 to rotate. Since the lifting seat 3 is threadedly connected to the screw 2 and its inner wall is slidably connected to the four limiting posts 4, the lifting seat 3 moves up and down along the limiting posts 4 when the screw 2 rotates. The movement of the lifting seat 3 drives the base 5 at its top and the sleeve 6 inside the base 5 to move. When the sleeve 6 is driven and descends, it can smoothly slide off the base 5 under the obstruction of the tilting frame 7. Simultaneously, the receiving mechanism is in standby mode. The limiting mechanism can position and fix the receiving rack 13 to ensure accurate receiving position (pulling the synchronous plate 19 upwards can cause the locking block 17 to disengage from the slot 16, thereby releasing the fixing of the receiving rack 13). When the sleeve 6 slides down, the receiving frame 14 on the receiving rack 13 can guide the sleeve 6 into the receiving rack 13. When the receiving mechanism needs to be moved, the operator can easily move it to a suitable position by pulling the handle 20 on the left side of the receiving frame 13 and using the casters 21 at the bottom of the support frame 12. The retaining ring 22 on the screw 2 prevents the transmission wheel 10 from axially moving during rotation, ensuring the stability of the transmission system. This avoids the increased processing time caused by the low unloading efficiency of the drawing machine 1, making it easy to use.

[0034] In summary, when this utility model is used, under the action of the unloading mechanism, the driving mechanism, the receiving mechanism and the limiting mechanism, it can quickly unload materials mechanically, avoiding the increased safety risks caused by manual unloading of the drawing machine 1, and making it easy to use.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite sleeve drawing device, comprising a drawing machine (1), characterized in that: The unloading mechanism includes a screw (2) movably connected to the upper side of the drawing machine (1) via a bearing. The surface of the screw (2) is threadedly connected to a lifting seat (3). The inner wall of the lifting seat (3) is slidably connected to four limiting posts (4). The bottom of the limiting posts (4) is fixedly connected to the upper side of the drawing machine (1). The top of the lifting seat (3) is fixedly connected to a base (5). A sleeve (6) is placed inside the base (5). Inclined frames (7) are provided on both the front and rear sides of the base (5). The bottom of the inclined frames (7) is fixedly connected to the upper side of the drawing machine (1). A drive mechanism is provided on the upper side of the drawing machine (1).

2. The composite sleeve pulling device according to claim 1, characterized in that: The drive mechanism includes a support plate (8) fixedly connected to the upper side of the drawing machine (1). A motor (9) is fixedly connected to the inner wall of the support plate (8). A transmission wheel (10) is fixedly connected to the bottom output shaft of the motor (9) and the surface of the screw (2). A transmission belt (11) is sleeved on the surface of the transmission wheel (10). A receiving mechanism is provided on the left side of the drawing machine (1).

3. The composite sleeve pulling device according to claim 2, characterized in that: The receiving mechanism includes a support frame (12) located on the left side of the drawing machine (1), a receiving frame (13) fixedly connected to the top of the support frame (12), a receiving frame (14) fixedly connected to the surface of the receiving frame (13), and a limit mechanism provided on the upper side of the drawing machine (1).

4. The composite sleeve pulling device according to claim 3, characterized in that: The limiting mechanism includes two insert blocks (15) fixedly connected to the right side of the receiving rack (13). The top of the insert block (15) is provided with a slot (16). The inner wall of the slot (16) is slidably connected with a block (17). The surface of the block (17) is slidably connected with a fixing frame (18). The right side of the fixing frame (18) is fixedly connected to the left side of the tilting frame (7). The top of the block (17) is fixedly connected with a synchronization plate (19).

5. The composite sleeve pulling device according to claim 3, characterized in that: A handle (20) is fixedly connected to the left side of the receiving rack (13). The handle (20) can easily drive the receiving mechanism to move. A caster wheel (21) is fixedly connected to the bottom of the support frame (12).

6. The composite sleeve pulling device according to claim 2, characterized in that: A retaining ring (22) is fixedly connected to the surface of the screw (2), and the bottom of the retaining ring (22) is in contact with the top of the transmission wheel (10).

Citation Information

Patent Citations

  • Composite pipe drawing device

    CN204448865U