A three-head aluminum profile dual traction machine

Abstract

This utility model provides a three-head aluminum profile dual traction machine, relating to the technical field of aluminum traction equipment. It includes a transmission machine and three traction mechanisms, which are slidably connected to one side of the transmission machine. A roller conveyor belt is installed on the transmission machine. A main shaft box is located at the rear end of one side of the transmission machine, and three drive shafts extend from the main shaft box. Each drive shaft is connected to and installed with a traction mechanism at its end. The machine employs a mechanical linkage drive method using a planetary gear differential and a servo motor, enabling the three traction mechanisms to automatically adjust torque distribution during traction, eliminating accumulated errors caused by response delays or speed deviations in the electronic control system. Simultaneously, the design of the universal joint coupling and spline telescopic drive shaft ensures stable power transmission even when the traction mechanism moves on the slide rail, avoiding profile twisting or surface scratches caused by speed differences.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum traction equipment, and in particular to a three-head aluminum profile dual traction machine. Background Technology

[0002] In aluminum profile extrusion production lines, the traction machine is a key piece of equipment used to stably pull the profile after extrusion, ensuring straightness, surface quality, and fixed-length cutting. Traditional dual traction machines have some problems in practical applications, mainly reflected in traction synchronization, clamping mechanism adaptability, and buffering capacity.

[0003] First, traditional dual-traction machines use independent drive systems. Although each traction head can be controlled independently, when multiple traction heads work together, slight differences in speed control often cause deformation or scratches on the profile during traction, affecting product quality and subsequent processing. Second, for aluminum profiles with different cross-sectional dimensions, traditional clamping mechanisms typically use fixed gripper designs. These fixed grippers cannot be quickly switched between different cross-sectional dimensions, requiring the entire machine to be stopped for adjustment when changing clamps, greatly reducing production efficiency. This problem is particularly prominent when there is an urgent need to change production tasks, wasting a lot of time and increasing production costs. Finally, the large impacts during traction start-up and shutdown can cause dimensional fluctuations in the aluminum profile at the head and tail, thus affecting the overall accuracy and quality of the product. Therefore, we propose a three-head dual-traction machine for aluminum profiles. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Traditional dual-traction machines use independent drive systems. Although each traction head can be controlled independently, when multiple traction heads work together, slight differences in speed control often lead to deformation or scratches on the profiles during traction, affecting product quality and subsequent processing. Secondly, for aluminum profiles with different cross-sectional dimensions, traditional clamping mechanisms typically use fixed gripper designs. These fixed grippers cannot be quickly switched between different cross-sectional dimensions, requiring the entire machine to be stopped for adjustment when changing clamps, greatly reducing production efficiency. This problem is particularly prominent when there is an urgent need to change production tasks, wasting a lot of time and increasing production costs. Finally, the large impacts during traction start-up and shutdown can cause dimensional fluctuations in the aluminum profiles at the head and tail, thus affecting the overall accuracy and quality of the product.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A three-head aluminum profile dual traction machine includes a transmission machine and three traction mechanisms. The three traction mechanisms are slidably connected to one side of the transmission machine. A roller conveyor belt is provided on the transmission machine. A main shaft box is provided at the rear end of one side of the transmission machine. Three drive shafts extend from the main shaft box. A traction mechanism is connected and installed at the end of each drive shaft.

[0007] Furthermore, a planetary gear differential is installed inside the spindle box, and a high-power servo motor is provided at the rear end of the spindle box. The output end of the servo motor is connected to the planetary gear differential, and the three drive shafts are arranged vertically and horizontally within the spindle box.

[0008] Furthermore, the three planetary gears of the planetary gear differential are connected to an output shaft, the other end of the output shaft is connected to a universal joint coupling, the other end of the universal joint coupling is connected to a drive shaft, and the other end of the drive shaft is connected to the gearbox on the traction mechanism.

[0009] Furthermore, the drive shaft consists of an internal spline and an external spline. The internal spline is slidably connected to the external spline. The end of the internal spline is connected to the gearbox on the traction mechanism, and the front end of the external spline is connected to a universal joint coupling.

[0010] Furthermore, the three traction mechanisms are arranged in a straight line side by side, and the bottom ends of the three traction mechanisms are provided with slide rails, which are slidably connected to the slide rails.

[0011] Furthermore, each of the traction mechanisms is provided with a traction head at its front end, and an annular hydraulic cavity gripper is provided at the bottom end of the traction head, with a plurality of wedges slidably connected to the annular hydraulic cavity gripper axially.

[0012] Furthermore, each of the wedges is connected to a spring steel band at its bottom, and the hydraulic hose of the annular hydraulic chamber gripper is connected from the bottom of the traction mechanism.

[0013] Furthermore, the base of the traction mechanism is provided with a composite buffer layer, the upper layer of which is provided with several nitrogen springs, and the lower layer is provided with honeycomb aluminum energy-absorbing blocks.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The mechanical linkage drive method of planetary gear differential and servo motor is adopted to enable the three traction mechanisms to automatically adjust the torque distribution during traction, eliminating the cumulative error caused by the response delay of the electronic control system or speed deviation. At the same time, the design of universal joint coupling and spline telescopic drive shaft ensures that the traction mechanism can still transmit power stably when moving on the slide rail, avoiding profile twisting or surface scratches caused by speed difference.

[0016] 2. The ring-shaped hydraulic chamber gripper and split wedge block structure allow for rapid switching between aluminum profiles of different cross-sectional sizes by adjusting the hydraulic pressure, eliminating the need to stop the machine to change fixtures. The changeover time is reduced to less than 1 minute, significantly improving production efficiency. The spring steel strip-assisted contouring design enables the gripper to adapt to the profile contour, avoiding profile deformation or surface indentation caused by uneven clamping force.

[0017] 3. The composite buffer layer of the nitrogen spring honeycomb aluminum energy-absorbing block effectively absorbs the instantaneous impact during traction start-up or shutdown, reducing acceleration from 5m / s². 2 Reduced to 1.2 m / s 2 This reduces the fluctuation of the head and tail dimensions of the profile by 60%, ensuring the straightness and dimensional accuracy of the product. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of a three-head aluminum profile dual traction machine provided by this utility model;

[0019] Figure 2 A schematic diagram of the planetary gear differential connection structure of a three-head aluminum profile dual traction machine provided by this utility model;

[0020] Figure 3 A schematic diagram of the annular hydraulic chamber gripper structure of a three-head aluminum profile dual traction machine provided by this utility model;

[0021] Figure 4 A schematic diagram of a composite buffer layer structure for a three-head aluminum profile dual traction machine provided by this utility model.

[0022] Legend: 1. Transmission machine; 2. Traction mechanism; 101. Roller conveyor belt; 102. Main spindle box; 103. Drive shaft; 104. Planetary gear differential; 105. Servo motor; 106. Output shaft; 107. Universal joint coupling; 108. Internal spline; 109. External spline; 201. Slide rail; 202. Traction head; 203. Annular hydraulic chamber gripper; 204. Wedge block; 205. Composite buffer layer; 206. Nitrogen spring; 207. Honeycomb aluminum energy absorption block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] Example 1

[0028] like Figure 1-4 As shown, this utility model provides a technical solution: a three-head aluminum profile double traction machine, including a transmission machine 1 and three traction mechanisms 2. The three traction mechanisms 2 are slidably connected to one side of the transmission machine 1. The three traction mechanisms 2 are arranged in a straight line with adjustable spacing. A single high-power servo motor 105 distributes power to three drive shafts 103 through a planetary gear differential 104. A roller conveyor belt 101 is provided on the transmission machine 1. A main shaft box 102 is provided at the rear end of one side of the transmission machine 1. Three drive shafts 103 extend from the main shaft box 102. A traction mechanism 2 is connected and installed at the end of each drive shaft 103. The three-head traction mechanism 2 (A, B, and C heads) has two heads working simultaneously and one head as a backup or auxiliary head. The double traction is combined with a buffer head. Heads A and B are the main traction heads, and head C intervenes during mold changing or high-speed production to avoid speed fluctuations. If any head fails, the other two heads can still maintain production, reducing the downtime risk by 70%.

[0029] Example 2

[0030] like Figure 1-4As shown, a planetary gear differential 104 is installed inside the spindle box 102. A high-power servo motor 105 is located at the rear end of the spindle box 102. The output end of the servo motor 105 is connected to the planetary gear differential 104. When the load of a certain traction mechanism 2 changes suddenly, the planetary gear differential 104 automatically adjusts its speed according to the torque change transmitted through the universal joint coupling 107 to avoid mechanical interference. The three drive shafts 103 are arranged vertically and horizontally within the spindle box 102 to avoid interference. Output shafts 106 are connected to the three planetary gears of the planetary gear differential 104. The other end is connected to a universal joint coupling 107, which compensates for the angular deflection of the traction mechanism 2 when it moves. The other end of the universal joint coupling 107 is connected to a drive shaft 103, and the other end of the drive shaft 103 is connected to the gearbox on the traction mechanism 2. The drive shaft 103 is composed of an internal spline 108 and an external spline 109. The drive shaft 103 adapts to the displacement of the traction mechanism 2. The internal spline 108 is slidably connected to the external spline 109. The end of the internal spline 108 is connected to the gearbox on the traction mechanism 2, and the front end of the external spline 109 is connected to the universal joint coupling 107.

[0031] Three traction mechanisms 2 are arranged in a straight line side by side. A slide rail 201 is provided at the bottom of each traction mechanism 2, and the three traction mechanisms 2 are slidably connected to the slide rail 201. A traction head 202 is provided at the front end of each traction mechanism 2, and an annular hydraulic chamber gripper 203 is provided at the bottom end of the traction head 202. Several wedges 204 are axially slidably connected to the annular hydraulic chamber gripper 203. A spring steel band is connected to the bottom of each wedge 204. When the hydraulic pressure increases, the wedge 204 expands radially along the conical surface, and simultaneously, the built-in spring steel band achieves the clamping surface and profile contour. The hydraulic hose of the annular hydraulic chamber gripper 203 is connected from the bottom of the traction mechanism 2 for contour fitting. A single set of grippers can adapt to cross-sectional changes in the range of 80mm-200mm. When changing profiles, only the oil pressure needs to be adjusted, without replacing the clamping parts. The base of the traction mechanism 2 is provided with a composite buffer layer 205. Several nitrogen springs 206 are provided on the upper layer of the composite buffer layer 205, and honeycomb aluminum energy-absorbing blocks 207 are provided on the lower layer. When traction starts, the nitrogen springs 206 are compressed to store energy. When stopping, the honeycomb aluminum energy-absorbing blocks 207 absorb the remaining kinetic energy through plastic deformation.

[0032] The working process of this utility model is as follows: When using a three-head aluminum profile double traction machine, the high-power servo motor 105 is started first, driving the planetary gear differential 104 to operate. The differential distributes the power to three staggered output shafts 106, which are connected to the drive shaft 103 through the universal joint coupling 107. The spline structure of the drive shaft 103 adapts to the displacement of the traction mechanism 2 and transmits the power to the gearbox of each traction mechanism 2.

[0033] Main traction mode:

[0034] A and B traction heads 202 work simultaneously, clamping the profile through the annular hydraulic chamber gripper 203. The hydraulic system drives the wedge block 204 to expand radially, and the spring steel belt achieves contour conformal fitting of the profile. The clamping force is adjusted by oil pressure to adapt to cross-sectional changes of 80-200mm.

[0035] Auxiliary mode: C-traction head 202 intervenes during high-speed production or when the main traction head 202 fails to ensure continuous production;

[0036] When the load on a certain traction head 202 suddenly changes, the differential automatically adjusts the torque distribution, the universal joint compensates for the angular deflection of the traction mechanism during movement, and the spline drive shaft 103 extends and retracts to adapt to the displacement changes on the slide rail 201. When traction starts, the nitrogen spring 206 compresses to store energy and reduce the initial impact. When traction stops, the honeycomb aluminum energy-absorbing block 207 plastically deforms to absorb the remaining kinetic energy, reducing the impact acceleration from 5 m / s². 2 Reduced to 1.2 m / s 2 When any one of the traction heads 202 fails, the remaining two traction heads 202 can maintain production. The gripper mode can be switched by rapid hydraulic pressure adjustment, without the need to stop the machine to replace the gripper.

[0037] 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 three-head aluminum profile double traction machine, comprising a transmission machine (1) and three traction mechanisms (2), wherein the three traction mechanisms (2) are slidably connected to one side of the transmission machine (1), characterized in that: The conveyor (1) is provided with a roller conveyor belt (101), and a spindle box (102) is provided at the rear end of one side of the conveyor (1). Three drive shafts (103) extend out from the spindle box (102), and a traction mechanism (2) is connected to the end of each drive shaft (103).

2. The three-head aluminum profile dual traction machine according to claim 1, characterized in that: A planetary gear differential (104) is installed inside the spindle box (102). A high-power servo motor (105) is provided at the rear end of the spindle box (102). The output end of the servo motor (105) is connected to the planetary gear differential (104). The three drive shafts (103) are arranged vertically and horizontally inside the spindle box (102).

3. The three-head aluminum profile dual traction machine according to claim 2, characterized in that: The planetary gear differential (104) has an output shaft (106) connected to the three planetary gears. The other end of the output shaft (106) is connected to a universal joint coupling (107). The other end of the universal joint coupling (107) is connected to a drive shaft (103). The other end of the drive shaft (103) is connected to the gearbox on the traction mechanism (2).

4. The three-head aluminum profile dual traction machine according to claim 3, characterized in that: The drive shaft (103) consists of an internal spline (108) and an external spline (109). The internal spline (108) is slidably connected to the external spline (109). The end of the internal spline (108) is connected to the gearbox on the traction mechanism (2), and the front end of the external spline (109) is connected to the universal joint coupling (107).

5. A three-head aluminum profile dual traction machine according to claim 1, characterized in that: The three traction mechanisms (2) are arranged in a straight line side by side. The bottom of the three traction mechanisms (2) is provided with a slide rail (201), and the three traction mechanisms (2) are slidably connected to the slide rail (201).

6. A three-head aluminum profile dual traction machine according to claim 1, characterized in that: Each of the traction mechanisms (2) is provided with a traction head (202) at its front end, and an annular hydraulic cavity gripper (203) is provided at the bottom end of the traction head (202). Several wedges (204) are axially slidably connected to the annular hydraulic cavity gripper (203).

7. A three-head aluminum profile dual traction machine according to claim 6, characterized in that: Each of the wedges (204) is connected to a spring steel band at its bottom, and the hydraulic hose of the annular hydraulic chamber gripper (203) is connected from the bottom of the traction mechanism (2).

8. A three-head aluminum profile dual traction machine according to claim 1, characterized in that: The base of the traction mechanism (2) is provided with a composite buffer layer (205), the upper layer of the composite buffer layer (205) is provided with a number of nitrogen springs (206), and the lower layer is provided with a honeycomb aluminum energy-absorbing block (207).

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