A multi-tube type quick cutting production line

Abstract

The utility model relates to copper pipe drawing equipment field discloses a multi -tubular quick -change production line, a multi -tubular quick -change production line, including forming machine seat, motor and thread processing subassembly installed on forming machine seat, be equipped with the first installation portion for detachable connection motor or straightening assembly on forming machine seat to and be equipped with the second installation portion for detachable connection thread processing subassembly or mould assembly, motor and straightening assembly all are provided with the first base that is matched with first installation portion on, thread processing subassembly and mould assembly all are provided with the second base that is matched with second installation portion, first base and second base are installed respectively on first installation portion and second installation portion through quick -change spare, to realize motor and straightening assembly, thread processing subassembly and mould assembly's quick switching. The utility model intends to realize the conversion of thread processing and light pipe production mode.

Description

Technical Field

[0001] This utility model relates to the field of copper tube drawing equipment, specifically to a multi-tube fast cutting production line. Background Technology

[0002] In recent years, the air conditioning and refrigeration industry has continued to develop, resulting in significantly different demands for internally threaded copper tubes and thin-walled smooth tubes. Thin-walled smooth tubes, due to their lightweight, lower cost, and versatility, are increasingly widely used in heat exchangers, household appliances, and some industrial heat exchange devices, with market demand significantly higher than that for internally threaded copper tubes. Especially with the improvement of energy efficiency standards and product structure optimization, thin-walled smooth tubes have gradually become the preferred material for many manufacturers, leading to a continuous expansion of order volume and placing higher demands on enterprise production capacity.

[0003] With changes in the market's product structure, the idle rate of existing forming machines, primarily used for processing internally threaded copper tubes, has increased due to decreased orders, resulting in a significant reduction in equipment utilization. Meanwhile, while traditional disc-drawing production equipment can be used for manufacturing thin-walled tubes, its limited production efficiency and insufficient capacity flexibility make it difficult to meet the rapidly growing market demand for thin-walled tubes. Expanding capacity by adding new production lines would require additional production space or the dismantling of existing idle equipment, not only wasting existing assets but also necessitating substantial investment in new equipment, leading to increased fixed costs and a longer investment payback period for the company.

[0004] Based on the above realities, enterprises face the following prominent problems: on the one hand, existing machines are idle, resulting in resource waste and high production costs; on the other hand, the existing production capacity of the coiling equipment cannot respond to changes in market demand in a timely manner, while new production lines face the dual constraints of spatial layout and capital investment. Utility Model Content

[0005] The present invention aims to provide a multi-tube quick-cutting production line to achieve rapid conversion between thread processing and bare tube production modes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A multi-tube quick-cutting production line includes a forming base, a motor mounted on the forming base, and a thread processing assembly. The forming base has a first mounting part for detachably connecting the motor or a straightening assembly, and a second mounting part for detachably connecting the thread processing assembly or a mold assembly. The motor and the straightening assembly are each provided with a first base that matches the first mounting part, and the thread processing assembly and the mold assembly are each provided with a second base that matches the second mounting part. The first base and the second base are respectively mounted on the first mounting part and the second mounting part via quick-cutting components to achieve rapid switching between the motor and the straightening assembly, and between the thread processing assembly and the mold assembly.

[0007] Beneficial effects: 1. By unifying the first base structure of the motor and straightening components and matching it with the first mounting part of the forming machine base; and unifying the second base structure of the thread processing components and mold components and adapting it to the second mounting part of the forming machine base, a standardized connection interface is formed. When the production task changes from processing internally threaded tubes to producing thin-walled smooth tubes, operators do not need to replace the entire machine or perform complex disassembly and debugging. They only need to quickly replace the functional modules to complete the production line conversion, which greatly shortens the product changeover time. At the same time, the flexible switching capability allows the production line to adjust the processing categories at any time according to order fluctuations, avoiding equipment idleness under a single production mode, and improving the flexibility of production scheduling and overall production efficiency.

[0008] 2. Using idle internal thread forming machines as the basis for transformation, there is no need to purchase a brand new production line, expand the site, or discard the existing idle machines. The core basic structure such as the original forming machine base can be directly utilized. By simply adding straightening components, mold components, and a suitable installation structure, it can be upgraded into a multi-tube fast cutting production line, which significantly reduces the large expenditure on equipment purchase. At the same time, it revitalizes idle assets, avoids the waste of resources caused by long-term idle equipment, and improves the utilization rate and return on assets of the company's existing equipment.

[0009] 3. The upgraded production line retains the original internal thread processing function and adds the straightening and forming capabilities for thin-walled smooth tubes, realizing multi-purpose use and effectively expanding the production range. By integrating multiple processing functions on the same forming base, the total processing volume per unit time can be increased without occupying additional production space, quickly making up for the shortcomings of insufficient production capacity of the original equipment, responding to customer order needs in a timely manner, and enhancing the company's market supply capacity and order acceptance capacity.

[0010] Preferably, as an improvement, the quick-cutting component includes an outer sleeve, a pin body, and multiple locking balls evenly installed inside the outer sleeve. Part of the pin body is located in the locking area of ​​the outer sleeve. A reset component is sleeved on the outer periphery of the pin body located in the release area of ​​the outer sleeve, and a button is connected to its end. A step is formed between the release area and the locking area, and the two ends of the reset component abut against the button and the step, respectively. Multiple locking ball grooves are provided on the outer periphery of the outer sleeve, and the locking balls are placed in the locking ball grooves. An annular groove is provided on the outer periphery of the pin body so that the locking balls can roll axially in the annular groove during the movement of the pin body.

[0011] Beneficial effects: The combination structure of the outer sleeve, pin body, and locking ball utilizes the rolling and locking of the locking ball within the annular groove to achieve one-button locking and releasing of the connection. Operation is simple and intuitive, requiring no special tools and significantly reducing the labor intensity and technical threshold for operators. Simultaneously, this mechanical locking structure boasts high rigidity and a stable connection, ensuring excellent connection rigidity and precision during high-speed, high-load production processes, thus guaranteeing consistent product quality.

[0012] Preferably, as an improvement, the straightening assembly includes a box, a cover, and two sets of guide roller sliding blocks. The bottom of the box is connected to a first base, and the first base is connected to the top of the forming machine. The top of the box and the cover are connected to form a cavity. The two sets of guide rollers are arranged opposite to each other along the width direction of the cover, and the two sets of guide rollers are slidably connected to the cover. The bottom of the two sets of guide rollers is respectively connected to a slider, and the slider is slidably connected to the cavity.

[0013] Beneficial effects: The box and cover are connected to form a closed cavity, integrating core components such as the slider into the cavity. This makes the overall structure of the straightening assembly compact, reducing the space occupied around the forming machine. It is especially suitable for scenarios where the existing forming machine is being modified, without the need for significant adjustments to the equipment layout. The closed cavity structure effectively prevents external dust, debris, and oil from entering, protecting the sliding surfaces of the internal slider and guide rollers, reducing wear and failure risks, extending the service life of the components, and lowering maintenance frequency and costs. Secondly, the two sets of guide rollers are arranged opposite each other along the width of the cover and are slidably connected. With the sliding of the bottom slider in the cavity, the distance between the two sets of guide rollers can be flexibly adjusted, which can adapt to the straightening needs of thin-walled tubes of different diameters and specifications, improving the equipment's adaptability to diverse processing tasks.

[0014] Preferably, as an improvement, the straightening assembly further includes a drive member, each slider is connected to the drive member, and the drive member is used to push the slider to move along the width direction of the cover.

[0015] Beneficial effects: The drive unit is directly connected to the slider and can actively push the slider to move along the width of the cover. There is no need to manually adjust the spacing of the guide rollers, which greatly reduces the intensity and difficulty of operation. This allows operators to quickly complete the straightening parameter settings for thin-walled tubes of different specifications and improve production changeover efficiency.

[0016] Preferably, as an improvement, the drive component includes a lead screw and a handwheel, with a sliding block slidably connected to the lead screw, and the end of the lead screw away from the slider connected to the handwheel.

[0017] Beneficial effects: The lead screw drive has the characteristics of high precision. By rotating the handwheel to drive the lead screw, the rotational motion of the handwheel can be converted into the linear motion of the slider, realizing the fine adjustment of the guide roller spacing. It can accurately control the slider movement distance, ensuring that the guide roller spacing is highly matched with the specifications of the thin-walled tube, effectively improving the straightening accuracy and product consistency.

[0018] Preferably, as an improvement, the straightening assembly further includes a slide bar and a sliding bearing. The slide bar is disposed at both ends of the slider, and both ends of the slider are connected to the slide bar through the sliding bearing. Both ends of the slide bar are connected to the inner wall of the housing.

[0019] Beneficial effects: The two ends of the slide bar are fixed to the inner wall of the box, providing a rigid guide track for the slider. Combined with the sliding bearing, it can ensure that the slider moves in a straight line along the width of the cover, avoiding deviation, jamming or shaking of the slider during movement. It can also ensure that the two sets of guide rollers always remain parallel and have a uniform spacing, greatly improving the accuracy of straightening parameter adjustment, thereby ensuring the straightening quality of the thin-walled optical tube.

[0020] Preferably, as an improvement, the straightening assembly further includes a locking element located at the end of the lead screw near the handwheel and sleeved around the outer periphery of the lead screw.

[0021] Beneficial effects: The locking sleeve is set on the outer periphery of the lead screw, which can lock the position of the lead screw after the guide roller spacing is adjusted to the correct position. This prevents the lead screw from rotating accidentally due to factors such as equipment vibration, workpiece impact or accidental contact, avoids the guide roller spacing from shifting, and ensures that the clamping force and position of the guide roller on the optical tube remain stable during the straightening process, effectively guaranteeing the straightening accuracy and product consistency of the thin-walled optical tube.

[0022] Preferably, as an improvement, the mold assembly includes a first mold, a second mold, a first mounting base, and a second mounting base. The first mold and the second mold are mounted on a molding machine and are arranged opposite to each other. One side of the first mounting base is engaged with the first mold. The second mounting base includes an integrally formed fixing part and a engaging part. The other side of the first mounting base is sleeved on the outer periphery of the fixing part, and the engaging part is engaged inside the second mold.

[0023] Beneficial effects: The first mold and the second mold are set up opposite each other to form a processing station. With the first mounting base and the first mold snapping together, and the second mounting base and the second mold snapping together, the precise positioning and stable connection of each part of the mold assembly are achieved. The multiple snapping structure can effectively resist the impact of external forces during the processing and reduce mold displacement or shaking.

[0024] Preferably, as an improvement, the mold assembly further includes a stretching outer mold, which is installed between the first mounting base and the fixing part.

[0025] Beneficial effects: The stretching outer die is installed between the first mounting base and the fixed part, achieving precise positioning through the stable connection between the two. During the stretching and forming process of thin-walled tubes, the stretching outer die provides a stable forming benchmark and constraint for the tube, ensuring that the outer diameter, roundness, and surface finish of the tube meet the processing requirements, effectively reducing product defects caused by die positioning deviations.

[0026] Preferably, as an improvement, an opening is provided at the connection between the molding machine and the mold assembly, and a filter screen is provided inside the opening.

[0027] Beneficial effects: The filter screen can effectively intercept solid impurities carried in the oil, preventing these impurities from re-entering the equipment lubrication system or processing area with the recovered oil. This avoids impurities causing wear and jamming of internal parts, reduces equipment failure rate, extends the service life of the molding machine and mold components, and lowers equipment maintenance and replacement costs. Secondly, the opening at the connection between the molding machine and the mold components can guide excess lubricating oil, coolant, and other oils during processing to flow down in a concentrated manner, preventing oil from dripping randomly and causing waste. Attached Figure Description

[0028] Figure 1 This is a schematic diagram showing the installation of the straightening component and the mold component in an embodiment of this utility model.

[0029] Figure 2 This is a cross-sectional view of the quick-cutting component in an embodiment of this utility model.

[0030] Figure 3 This is a top view of the straightening component in an embodiment of this utility model.

[0031] Figure 4 This is a top view of the straightening component cover in an embodiment of this utility model.

[0032] Figure 5 This is a schematic diagram of the structure of the locking component of the straightening assembly in an embodiment of this utility model.

[0033] Figure 6 This is a cross-sectional view of the mold assembly in an embodiment of this utility model.

[0034] The reference numerals in the accompanying drawings include: forming machine 1, straightening assembly 2, housing 21, cover 22, slide groove 221, guide roller 23, slider 24, drive component 25, lead screw 251, handwheel 252, locking component 26, locking block 261, locking wrench 262, slide bar 27, sliding bearing 28, mold assembly 3, mold 31, first mounting base 32, second mounting base 33, stretching outer mold 34, sealing component 35, quick-cutting component 4, outer sleeve 41, locking area 411, release area 412, locking ball groove 413, pin body 42, annular groove 421, locking ball 43, reset component 44, button 45. Detailed Implementation

[0035] The following detailed description illustrates the specific implementation method: Example like Figure 1 and Figure 6 As shown, this embodiment provides a multi-tube quick-cutting production line, including a forming machine base, a motor mounted on the forming machine base, and a thread processing assembly. The forming machine base is provided with a first mounting part for detachably connecting the motor or straightening assembly 2, and a second mounting part for detachably connecting the thread processing assembly or mold assembly 3. Both the motor and the straightening assembly 2 are provided with a first base matching the first mounting part, and both the thread processing assembly and the mold assembly 3 are provided with a second base matching the second mounting part. The first and second bases are respectively mounted on the first and second mounting parts via a quick-cutting component 4 to achieve rapid switching between the motor and the straightening assembly 2, and between the thread processing assembly and the mold assembly 3. The quick-cutting component 4 includes an outer sleeve 41, a pin shaft body 42, and multiple locking balls 43 evenly installed within the outer sleeve 41. Part of the pin shaft body 42 is located within the locking area 411 of the outer sleeve 41. A reset member 44 is sleeved around the outer periphery of the pin body 42 of the outer release area 412. In this embodiment, the reset member 44 is a spring, and a button 45 is connected to the end of the pin body 42 of the outer release area 412. To prevent the button 45 and the pin body 42 from falling off through the port of the release area 412, a limit part is provided at the end of the release area 412. A step is formed between the release area 412 and the locking area 411, wherein the diameter of the release area 412 is larger than the diameter of the locking area 411, and the two ends of the reset member 44 abut against the button 45 and the step, respectively. A plurality of locking ball grooves 413 are provided on the outer periphery of the outer sleeve 41, and the locking ball 43 is placed in the locking ball groove 413. An annular groove 421 is provided on the outer periphery of the pin body 42. The cross-section of the annular groove 421 is inverted trapezoidal so that the locking ball 43 can roll axially in the annular groove 421 during the movement of the pin body 42, thereby achieving locking or unlocking. Based on this standardized interface design, the quick-installation and disassembly of the quick-cutting component 4 enables rapid switching between the thread processing assembly and the mold assembly 3. Therefore, when the order volume of thin-walled tubes is large and the processing capacity of the coiling device is insufficient, the motor and thread processing assembly on the idle forming machine 1 can be disassembled and replaced with the straightening assembly 2 and the mold assembly 3 to expand the processing capacity of thin-walled tubes.

[0036] like Figure 2 and Figure 3As shown, the straightening assembly 2 includes a housing 21 and a cover 22. The bottom of the housing 21 is welded to the first base and connected to the forming machine 1 by bolts. The top of the housing 21 and the cover 22 are connected to form a cavity. The straightening assembly 2 also includes two sets of guide rollers 23 and a slider 24 connected to the guide rail. The two sets of guide rollers 23 are arranged opposite to each other along the width direction of the cover 22, and the two sets of guide rollers 23 are slidably connected to the cover 22, while the slider 24 is slidably connected to the cavity. Specifically, the cover 22 is provided with a limiting hole, through which the shaft of the guide roller 23 passes and the slider 24 is connected to the cover 22 and locked by a nut. The slider 24 is connected to a driving component 25 for pushing the two sets of guide rollers 23 away from or towards each other. The driving component 25 includes a lead screw 251 and a handwheel 252. The slider 24 is threadedly connected to the lead screw 251, and the end of the lead screw 251 away from the slider 24 is connected to the handwheel 252. To prevent the slider 24 from rotating with the lead screw 251, slide rods 27 are provided at both ends of the slider 24, arranged along the width direction of the housing 21. The two sets of guide rollers 23 share one slide rod 27 to facilitate the movement of the slider 24. To reduce sliding resistance, a sliding bearing 28 is also provided at the connection between the slide rod 27 and the slider 24. The sliding bearing 28 is sleeved on the slide rod 27 and is interference-fitted with the slider 24.

[0037] like Figure 4 As shown, the straightening assembly 2 also includes a locking element 26, located at the end of the lead screw 251 near the handwheel 252. The locking element 26 is used to lock the position of the lead screw 251, preventing the guide roller 23 from shifting due to movement of the lead screw 251 and affecting the straightening accuracy. The locking element 26 includes a locking block 261 and a locking wrench 262. The locking block 261 is engaged with the lead screw 251, and the threaded rod of the locking wrench 262 passes through the opening and closing part of the locking block 261 and connects to the locking nut. Rotating the locking wrench 262 causes the locking nut to screw upwards, reducing the distance between it and the cover 22, causing the opening and closing part of the locking block 261 to close, thereby securing the lead screw 251.

[0038] like Figure 5 As shown, the mold assembly 3 includes a first mold 31, a second mold 31, a first mounting base 32, and a second mounting base 33. The second bases on the first mold 31 and the second mold 31 are bolted to the molding machine 1, and the first mold 31 and the second mold 31 are arranged opposite to each other. One side of the first mounting base 32 is snapped into the first mold 31. The second mounting base 33 includes an integrally formed fixing part and a snapping part. The other side of the first mounting base 32 is sleeved on the outer periphery of the fixing part, and the top of the first mounting base 32 is fixedly connected to the top of the fixing part by bolts. The snapping part is snapped into the second mold 31, and the snapping part is connected to the second mold 31 by bolts.

[0039] In this embodiment, the mold assembly 3 further includes a stretching outer mold 34, which is installed between the first mounting base 32 and the fixing part, and a sealing element 35 is also installed at the center of the stretching outer mold 34.

[0040] In this embodiment, an opening is provided at the connection between the molding machine 1 and the mold assembly 3, and a collection box is provided below the opening. A filter screen (not shown in the figure) is detachably provided on the top opening of the collection box to allow excess oil on the mold assembly 3 to pass through and to prevent the filter element in the mold assembly 3 from falling into the oil tank. The filter screen is specifically connected to the top of the molding machine 1 by bolts.

[0041] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A multi-tube type quick cutting production line comprising a molding machine base, a motor and a thread processing assembly installed on the molding machine base, characterized in that: The forming machine base is provided with a first mounting part for detachably connecting a motor or a straightening component, and a second mounting part for detachably connecting a thread processing component or a mold component. The motor and the straightening component are each provided with a first base that matches the first mounting part, and the thread processing component and the mold component are each provided with a second base that matches the second mounting part. The first base and the second base are respectively mounted on the first mounting part and the second mounting part through quick-cutting parts to realize quick switching between the motor and the straightening component, and between the thread processing component and the mold component.

2. A multi-tube type quick cutting production line according to claim 1, characterized in that: The quick-cut component includes an outer sleeve, a pin body, and multiple locking balls evenly installed inside the outer sleeve. Part of the pin body is located in the locking area of ​​the outer sleeve. A reset component is sleeved on the outer periphery of the pin body located in the release area of ​​the outer sleeve, and a button is connected to its end. A step is formed between the release area and the locking area, and the two ends of the reset component abut against the button and the step, respectively. Multiple locking ball grooves are provided on the outer periphery of the outer sleeve, and the locking balls are placed in the locking ball grooves. An annular groove is provided on the outer periphery of the pin body so that the locking balls can roll axially in the annular groove during the movement of the pin body.

3. A multi-tube type quick cutting production line according to claim 1, characterized in that: The straightening assembly includes a box, a cover, and two sets of guide roller sliding blocks. The bottom of the box is connected to the first base, and the first base is connected to the top of the forming machine. The top of the box and the cover are connected to form a cavity. The two sets of guide rollers are arranged opposite to each other along the width direction of the cover and are slidably connected to the cover. The bottom of the two sets of guide rollers is connected to a slider, which is slidably connected to the cavity.

4. A multi-tube type quick cutting production line according to claim 3, characterized in that: The straightening assembly also includes a drive unit, to which each slider is connected, and the drive unit is used to push the slider to move along the width direction of the cover.

5. A multi-tube type quick cutting production line according to claim 4, characterized in that: The driving component includes a lead screw and a handwheel, with a sliding block slidably connected to the lead screw, and the end of the lead screw away from the slider connected to the handwheel.

6. A multi-tube type quick cutting production line according to claim 5, characterized in that: The straightening assembly also includes a slide bar and a sliding bearing. The slide bar is located at both ends of the slider, and both ends of the slider are connected to the slide bar through the sliding bearing. Both ends of the slide bar are connected to the inner wall of the housing.

7. A multi-tube type quick cutting production line according to claim 5, characterized in that: The straightening assembly also includes a locking element located at the end of the lead screw near the handwheel and sleeved around the outer periphery of the lead screw.

8. The multi-tube quick cutting production line according to claim 1, characterized in that: The mold assembly includes a first mold, a second mold, a first mounting base, and a second mounting base. The first mold and the second mold are mounted on a molding machine and are arranged opposite to each other. One side of the first mounting base is engaged with the first mold. The second mounting base includes an integrally formed fixing part and a engaging part. The other side of the first mounting base is sleeved on the outer periphery of the fixing part, and the engaging part is engaged inside the second mold.

9. The multi-tube type quick cutting production line according to claim 7, characterized in that: The mold assembly also includes a stretching outer mold, which is installed between the first mounting base and the fixing part.

10. The multi-tube type quick cutting production line according to claim 9, characterized in that: An opening is provided at the connection between the molding machine and the mold assembly, and a filter screen is installed inside the opening.

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