Hose thread trimming device

Abstract

The utility model relates to the technical field of metal processing and aluminum product forming, and discloses a hose thread trimming device which comprises a base, a clamp type support is installed on the base, and a large transmission shaft is arranged at the cross rotation center of the clamp type support in a penetrating mode. The two movable ends of one side of the clamp type support are each fixedly provided with a supporting cylinder, and the two supporting cylinders are each internally and coaxially provided with a small transmission shaft in a rotating mode. Each small transmission shaft is fixedly sleeved with a threaded roller cutter mold; the large transmission shaft is in transmission fit with the two small transmission shafts; a tension spring is fixedly arranged between the two movable ends of the other side of the clamp type support, an adjusting assembly for adjusting a gap between the two threaded roller cutter dies is fixedly installed on the threaded roller cutter die base, and the adjusting assembly is in transmission connection with the two movable ends, provided with the tension spring, of the clamp type support. The utility model has the advantages of improved production efficiency, simple structure, simple production flow and adjustment process, reduced die replacement frequency, adaptability to various specification changes of aluminum pipes, and improved flexibility.

Description

Technical Field

[0001] This utility model relates to the field of metal processing and aluminum product forming technology, and in particular to a hose thread trimming device. Background Technology

[0002] Aluminum tubes (hereinafter referred to as aluminum tubes), commonly known as toothpaste tubes or toothpaste pouches, are made from aluminum with a purity of 99.7% or higher. Aluminum tubes are a very common packaging material, widely used for filling and packaging cosmetics, toothpaste, pigments, lubricants, hair dyes, condiments, and various adhesives and other paste-like products. When compressed, the aluminum tube collapses, preventing air from entering and reducing the risk of oxidation or contamination of the contents, thus extending the product's shelf life.

[0003] Currently, for cold-extruded aluminum hoses, the traditional thread forming method uses disc cutting. Because the die frequently contacts the workpiece, the die wears quickly, affecting thread accuracy and requiring regular replacement, making it unsuitable for high-speed, high-volume production. Furthermore, any change in specifications (such as pitch or thread diameter) may require equipment readjustment or even die replacement, increasing adjustment time, reducing flexibility, and increasing maintenance costs. Moreover, calibration errors or mechanical failures can lead to the continuous production of large quantities of defective products, increasing scrap rates and resulting in high disposal costs.

[0004] Therefore, there is an urgent need for a hose thread trimming device to solve the problems of low precision, poor efficiency, difficult adjustment and high cost in the traditional thread forming process of aluminum hoses. Utility Model Content

[0005] The purpose of this invention is to provide a hose thread trimming device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hose thread trimming device, comprising a base fixedly installed on a hose processing equipment, a clamp-type bracket mounted on the base, a large transmission shaft passing through the cross rotation center of the clamp-type bracket, the large transmission shaft being rotatably connected to the clamp-type bracket and the base; a support cylinder is fixedly installed on each of the two movable ends on one side of the cross rotation center of the clamp-type bracket, and a small transmission shaft is coaxially rotatably installed in each of the two support cylinders; a thread roller cutter mold is fixedly sleeved on each small transmission shaft, and the two thread roller cutter molds roll against an aluminum tube; two first synchronous gears are fixedly sleeved on the large transmission shaft, and a second synchronous gear is fixedly sleeved on each of the two small transmission shafts, with each of the two first synchronous gears meshing with a second synchronous gear; a tension spring is fixedly installed between the two movable ends on the other side of the cross rotation center of the clamp-type bracket, and an adjusting component for adjusting the gap between the two thread roller cutter molds is fixedly installed on the base, the adjusting component being tractively connected to the two movable ends of the clamp-type bracket where the tension spring is located.

[0007] Preferably, the clamp-type bracket includes a first bracket and a second bracket; both the first bracket and the second bracket are arranged circumferentially along the large transmission shaft; both the first bracket and the second bracket are rotatably engaged with the large transmission shaft and rotatably engaged with the base for limiting; a connecting plate and a triangular plate are fixed on each of the first bracket and the second bracket; the two connecting plates are symmetrically arranged in a figure-eight shape and each of the two movable ends of the clamp-type bracket is fixedly connected to a support cylinder; the two triangular plates are symmetrically arranged in a figure-eight shape and are pulsatorically connected to the two movable ends of the clamp-type bracket, and a tension spring is fixed between the two triangular plates.

[0008] Preferably, the adjustment assembly includes a hydraulic cylinder fixed to the base, the telescopic shaft of the hydraulic cylinder being fixedly connected to a wedge block; a transmission wheel is rotatably mounted on each of the two triangular plates, and the wedge block is located between the two transmission wheels and engages with the two transmission wheels in a transmission cooperation.

[0009] Preferably, a fixing block is fixedly provided on the base, the large transmission shaft and the first bracket are rotatably connected to the fixing block, and the second bracket is rotatably connected to the first bracket.

[0010] The technical effects and advantages of this utility model are as follows:

[0011] First, this utility model improves production efficiency, simplifies the production process and adjustment process through its design structure, reduces the frequency of changing thread roller cutter dies, adapts to various specifications of aluminum tubes, and enhances flexibility.

[0012] Secondly, this utility model reduces costs, decreases scrap rates, and lowers maintenance and calibration costs.

[0013] Third, this utility model improves precision; the synchronous gear design ensures high-precision thread forming and reduces errors. Attached Figure Description

[0014] Figure 1 This is a three-dimensional assembly diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the clamp-type bracket of this utility model;

[0016] Figure 3 This is a three-dimensional front view of the present invention;

[0017] Figure 4 This is a three-dimensional side view of the present invention.

[0018] In the diagram: 1. Base; 2. First support; 3. Second support; 4. Large drive shaft; 5. First synchronous gear; 6. Thread roller cutter mold; 7. Small drive shaft; 8. Second synchronous gear; 9. Wedge block; 10. Drive wheel; 11. Hydraulic cylinder; 12. Support cylinder; 13. Tension spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of 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.

[0020] This utility model provides, for example Figures 1 to 4 The device shown includes a hose thread trimming device, comprising a base 1 fixedly mounted on a hose processing equipment. A fixing block is fixedly disposed on the base 1, and a clamp-type bracket is mounted on the fixing block.

[0021] The clamp-type support includes a first support 2 and a second support 3. Both the first support 2 and the second support 3 include an arc-shaped plate, a connecting rod, and a rotating ring. The connecting rod is fixedly connected to the inner curved surface of the arc-shaped plate, and the connecting rod is arranged radially along the arc-shaped plate. The rotating ring is fixedly connected to the connecting rod, and the connecting rod is arranged radially along the rotating ring. The center of the arc of the arc-shaped plate is located on the central axis of the rotating ring. The rotating ring on the first support 2 is rotatably connected to a fixed block, and the rotating ring of the second support 3 is coaxially fixedly connected to the rotating ring of the first support 2. The central axis of the two rotating rings is the intersection rotation center of the clamp-type support.

[0022] A connecting plate and a triangular plate are welded and fixed to the outer circumferential curved surfaces of both the first bracket 2 and the second bracket 3. The two connecting plates constitute two movable ends of the clamp-type bracket, located on the same side of the clamp-type bracket's cross rotation center. The two triangular plates constitute the other two movable ends of the clamp-type bracket, also located on the same side of the clamp-type bracket's cross rotation center. The two connecting plates and two triangular plates are located on different sides of the cross rotation center, and are symmetrically arranged in a figure-eight shape.

[0023] A tension spring 13 is installed between the two triangular plates. The two ends of the tension spring 13 correspond one-to-one with the two triangular plates, and each triangular plate is fixedly connected to the corresponding end of the tension spring 13.

[0024] An adjustment assembly is mounted on the base 1. This assembly is connected to two triangular plates, allowing them to rotate and move away from each other. The adjustment assembly includes a hydraulic cylinder 11, which is fixedly mounted on the base 1. The telescopic shaft of the hydraulic cylinder 11 is fixedly connected to a wedge block 9. A transmission wheel 10 is rotatably mounted on each of the two triangular plates. The wedge block 9 is located between the two transmission wheels 10 and engages with them in a transmission connection.

[0025] Wedge 9 is triangular prism shaped.

[0026] A horizontal large drive shaft 4 is set on the base 1. The large drive shaft 4 coaxially passes through the rotating ring of the first bracket 2 and the second bracket 3 and is rotatably connected to the fixed block.

[0027] A support cylinder 12 is welded and fixed to each of the two connecting plates, and a small transmission shaft 7 is coaxially inserted into each of the two support cylinders 12. Each small transmission shaft 7 is rotatably connected to its respective support cylinder 12, and each small transmission shaft 7 is parallel to the large transmission shaft 4.

[0028] Two first synchronous gears 5 are fixedly mounted on the large drive shaft 4, and one second synchronous gear 8 is fixedly mounted on each small drive shaft 7. The two first synchronous gears 5 and the two second synchronous gears 8 correspond one-to-one, and each first synchronous gear 5 meshes with the corresponding second synchronous gear 8 to ensure smooth synchronous rotation and trimming process while ensuring the synchronous operation of the cutting die.

[0029] Each small drive shaft 7 is fixedly fitted with a thread roller cutter mold 6. The two thread roller cutter molds 6 are positioned correspondingly and their corresponding axial end faces are flush. An aluminum tube is located between the two thread roller cutter molds 6, and the two thread roller cutter molds 6 roll and abut against the aluminum tube for high-precision thread processing.

[0030] Working Principle: When thread trimming an aluminum hose, the hose is placed between two thread roller cutter dies 6. Then, the hydraulic cylinder 11 is activated, extending its telescopic shaft and moving the wedge block 9 synchronously. The wedge block 9 pushes the two transmission wheels 10 away from the large transmission shaft 4. The two transmission wheels 10 move the two triangular plates away from the large transmission shaft 4 while simultaneously stretching the tension spring 13. Next, the two triangular plates rotate the first bracket 2 and the second bracket 3 respectively, causing the connecting plates on the first bracket 2 and the second bracket 3 to move closer together from the large transmission shaft 4. The two connecting plates move the two support cylinders 12 closer together from the large transmission shaft 4, and the two support cylinders 12 move the two small transmission shafts 7 closer together from the large transmission shaft 4. The two small transmission shafts 7 move the two thread roller cutter dies 6 closer together from the large transmission shaft 4, pressing against the aluminum hose during this process. At this point, the hydraulic cylinder 11 is closed.

[0031] Subsequently, the main shaft of the hose processing equipment drives the large transmission shaft 4 to rotate, which in turn drives the two first synchronous gears 5 to rotate. The two first synchronous gears 5 then drive the two second synchronous gears 8 to rotate. The two second synchronous gears 8 drive the connected small transmission shaft 7 to rotate, which in turn drives the connected thread roller cutter mold 6 to rotate. The two thread roller cutter molds 6 then perform thread trimming on the aluminum hose.

[0032] After the trimming is completed, the telescopic shaft of the hydraulic cylinder 11 retracts. At this time, under the action of the tension spring 13, the two triangular plates move closer along the circumference of the large transmission shaft 4, thereby causing the two thread roller cutter dies 6 to move away along the circumference of the large transmission shaft 4, thus ending the trimming of the aluminum hose.

[0033] In this embodiment, the aluminum flexible tube is simply referred to as a flexible tube or aluminum pipe.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 hose thread trimming device comprising a base (1) fixedly mounted on a hose processing apparatus, characterized in that: The base (1) is provided with a clamp type support, the cross rotation center of the clamp type support is provided with a large transmission shaft (4), the large transmission shaft (4) is rotationally connected with the clamp type support and the base (1); two movable ends of one side of the cross rotation center of the clamp type support are fixedly provided with a support cylinder (12), and a small transmission shaft (7) is rotationally installed in the support cylinder (12); a threaded roller cutter die (6) is fixedly sleeved on the small transmission shaft (7), and the threaded roller cutter dies (6) are in rolling abutment with an aluminum pipe; the large transmission shaft (4) is fixedly sleeved with two first synchronous gears (5), the small transmission shaft (7) is fixedly sleeved with a second synchronous gear (8), and the two first synchronous gears (5) are respectively engaged with the second synchronous gear (8); a tension spring (13) is fixedly arranged between the two movable ends of the other side of the cross rotation center of the clamp type support, and an adjusting assembly for adjusting the gap between the threaded roller cutter dies (6) is fixedly installed on the base (1) and is transmissionally connected with the two movable ends of the clamp type support provided with the tension spring (13).

2. A hose thread trimming device according to claim 1, wherein: The clamp type support comprises a first support (2) and a second support (3); the first support (2) and the second support (3) are arranged along the circumference of the large transmission shaft (4); the first support (2) and the second support (3) are both rotationally matched with the large transmission shaft (4) and are limitingly rotationally matched with the base (1); a connecting plate and a triangular plate are fixedly arranged on the first support (2) and the second support (3); the two connecting plates are symmetrically arranged in a spreader shape and are fixedly connected with the two movable ends of the clamp type support; the two triangular plates are symmetrically arranged in a spreader shape and are transmissionally connected with the two movable ends of the clamp type support and the adjusting assembly, and the tension spring (13) is fixed between the two triangular plates.

3. A hose thread trimming device according to claim 2, wherein: The adjusting assembly comprises a hydraulic cylinder (11) fixed on the base (1), and a wedge block (9) is fixedly connected with the telescopic shaft of the hydraulic cylinder (11); a transmission wheel (10) is rotationally installed on the two triangular plates, and the wedge block (9) is located between the two transmission wheels (10) and is in abutting transmission cooperation with the two transmission wheels (10).

4. A hose thread trimming device according to claim 2, wherein: The base (1) is fixedly provided with a fixed block, the large transmission shaft (4) and the first support (2) are rotationally connected with the fixed block, and the second support (3) is rotationally connected with the first support (2).

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