Capillary tube plastic-coated packaging production line

Abstract

The invention provides a capillary plastic coating packaging production line which comprises a plastic coating section and a packaging section, the plastic coating section comprises a first unwinding drum arranged at the right end and a first winding drum arranged at the left end, and coiled capillaries are arranged on the first unwinding drum; the capillary tube is unfolded from the first unwinding drum, sequentially penetrates through the first straightening part, the plastic coating part, the water cooling part, the blow-drying part and the first traction part from right to left, and is finally wound on the first winding drum; the plastic coating section and the packaging section are arranged respectively, surface plastic coating processing is carried out after an existing copper capillary tube is produced and processed, and the capillary tube subjected to plastic coating processing is wound and packaged according to the construction requirement of a floor heating capillary tube network, so that a plastic coating layer is formed on the surface of the capillary tube; the construction requirement for direct laying in concrete is met, winding packaging is carried out from the middle, pipe network site construction is also facilitated, the service life of the capillary tube is guaranteed, and the construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of capillary processing, and particularly to a capillary plastic-coated packaging production line. Background Art

[0002] A metal capillary is a small-diameter pipe used for heat transfer and is widely used in heat exchange systems or HVAC systems to achieve heat transfer by capillary action. Existing metal capillaries are mostly made of copper materials. Since the capillary is made of copper which is prone to oxidation, there are many limitations in use. In existing floor heating systems, there has emerged a way of directly laying wool tubes in concrete to form a capillary floor radiation system, and then directly supplying hot water into the capillary network for heating the indoor space. However, due to the characteristics of easy oxidation and corrosion of copper capillaries, the existing copper capillaries cannot be directly laid in concrete under this construction method. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing copper capillaries cannot adapt to the existing construction method of directly laying in concrete. The present invention provides a capillary plastic-coated packaging production line to solve the above problems.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a capillary plastic-coated packaging production line, including a plastic coating section and a packaging section. The plastic coating section includes a first unwinding reel arranged at the right end and a first winding reel arranged at the left end. A reel of capillaries is arranged on the first unwinding reel. After the capillaries are unwound from the first unwinding reel, they sequentially pass through a first straightening section, a plastic coating section, a water cooling section, a blowing section, and a first traction section, and finally are wound around the first winding reel. The packaging section includes a second unwinding reel arranged at the right end. The plastic-coated and wound capillaries are installed on the second unwinding reel. After the capillaries are unwound from the second unwinding reel, they sequentially pass through a second straightening section, a second traction section, a cutting section, and a straight pipe bracket mechanism. A winding machine is arranged in the middle of the straight pipe bracket mechanism.

[0005] Further: The plastic coating section includes a plastic coating die and an injection molding machine connected to the plastic coating die. The plastic coating die includes a base, a forming ring installed on the base, and a fixing seat installed on the forming ring. The capillaries sequentially pass through the base, the forming ring, and the fixing seat. A forming cavity and a main runner communicating with the forming cavity are arranged in the forming ring. The injection port of the injection molding machine communicates with the main runner. An integer ring pressing against the forming ring is arranged on the fixing seat. A finishing cavity communicating with the forming cavity is arranged in the integer ring. The shape of the right orifice of the finishing cavity is an inner cone shape, and a cooling water channel is arranged on the integer ring.

[0006] Further: The water cooling part includes a water tank and a spray pipe arranged in the water tank. The capillary tube passes through the water tank, and the spray pipe sprays cooling water onto the outer surface of the capillary tube in the water tank.

[0007] Further: The air drying part includes an air drying valve body. The capillary tube passes through the air drying valve body. Along the moving direction of the capillary tube, a first air drying channel and a second air drying channel are sequentially arranged on the air drying valve body. Air drying air pipes are respectively communicated with the first air drying channel and the second air drying channel. Drainage holes are respectively arranged below the first air drying channel and below the second air drying channel.

[0008] Further: The first traction part includes a traction frame, a first lower traction mechanism and a first upper traction mechanism. The first upper traction mechanism is arranged above the first lower traction mechanism and clamps the capillary tube therebetween. The first lower traction mechanism includes a first lower conveyor belt and a first lower driving wheel for driving the first lower conveyor belt to rotate. The number of the first lower driving wheels is two, and they are separately and fixedly arranged on the traction frame. A first lower driving motor is arranged on one of the first lower driving wheels. The first upper traction mechanism includes a first upper conveyor belt and a first upper driving wheel for driving the first upper conveyor belt to rotate. The number of the first upper driving wheels is two and they are separately arranged. A traction pressing guide rail is vertically arranged on the right side of the traction frame. A traction pressing slider is slidably mounted on the traction pressing guide rail. The traction pressing slider is fixedly connected to the right-side first upper driving wheel. A traction pressing spring is mounted on the traction frame. The traction pressing spring pushes the traction pressing slider downward. An upper pressing screw is arranged on the left side of the first upper traction mechanism. A lower pressing screw is arranged on the first lower traction mechanism at a position corresponding to the upper pressing screw. The upper pressing screw and the lower pressing screw are pressed against each other.

[0009] Further: The cutting part includes a cutter fixing seat and a turntable rotatably mounted on the cutter fixing seat. A pulley groove is arranged on the outer circumference of the turntable. A cutter slide rail is arranged radially on the left end face of the turntable. A cutter slider is slidably mounted on the cutter slide rail. A cutter seat is fixedly arranged on the cutter slider. A blade is fixedly arranged on the cutter seat. A pressing plate is slidably arranged in the inner hole of the cutter fixing seat. The pressing plate is arranged on the left side of the turntable and can rotate with the turntable. A cutter cover plate is arranged on the left end face of the cutter fixing seat. A pressing plate return spring is installed between the pressing plate and the turntable. The pressing plate return spring pushes the pressing plate towards the cutter cover plate. The pressing plate is provided with an inner tapered hole, the diameter of the inner tapered hole gradually decreases from right to left, a roller is arranged on the cutter holder, and a cutter return spring is further arranged on the left end face of the turntable. The cutter return spring pushes the cutter holder radially outwards so that the roller fits against the hole wall of the inner tapered hole; The cutting part further includes a push rod and a cutting cylinder. The push rod is rotatably arranged, the top end of the push rod presses against the outer end face of the pressing plate, the end of the push rod is hinged to the piston rod of the cutting cylinder, and the piston rod of the cutting cylinder extends to push the push rod and presses the pressing plate to the right.

[0010] Further: The rewinder includes a rewinding pressure plate mechanism and a rewinding turntable mechanism arranged below the rewinding pressure plate mechanism, The rewinding pressure plate mechanism includes a pressure plate support, a pressure plate cylinder vertically arranged on the pressure plate support, and a movable block connected to the top of the piston rod of the pressure plate cylinder. An upper pressure plate is rotatably arranged on the movable block; a guide sleeve is arranged on the pressure plate support, a guide post is slidably penetrated through the guide sleeve, and the lower part of the guide post is fixedly arranged on the movable block; The rewinding turntable mechanism includes a turntable support, a tray rotatably installed on the turntable support, and a turntable motor for driving the tray to rotate. A partition table is arranged on the upper end face of the tray. The partition table is a structure of two semi-circular convex platforms spaced apart in the middle, and the capillary tube passes through the partition table.

[0011] Further: The straight pipe bracket mechanism includes a bracket support, a right-angle bracket, a discharging cylinder, and a straight pipe tray arranged below the right-angle bracket. The middle part of the right-angle bracket is hinged and installed on the bracket support; one end of the discharging cylinder is hinged on the bracket support, and the other end is hinged to the end of the right-angle bracket.

[0012] Further: The first unwinding reel, the first rewinding reel, and the second unwinding reel are all of a drum type structure, and the first straightening part and the second straightening part are both roller type straightening mechanisms.

[0013] The beneficial effects of the present invention are that a capillary plastic-coated packaging production line of the present invention respectively sets a plastic coating section and a packaging section, performs surface plastic coating processing on the existing copper capillary tube after production and processing, and winds and packages the capillary tube that has completed the plastic coating processing according to the requirements of the construction of the floor heating capillary tube network. In this way, a plastic coating layer is formed on the capillary tube surface, meeting the construction requirements for direct laying in concrete, and winding and packaging from the middle also facilitates the on-site construction of the pipe network, ensuring the service life of the capillary tube and improving the construction efficiency. Description of the Drawings

[0014] The present invention will be further described below in conjunction with the drawings and embodiments.

[0015] Figure 1 It is a processing schematic diagram of the plastic coating section of a capillary plastic coating packaging production line of the present invention; Figure 2 It is a processing schematic diagram of the packaging section of a capillary plastic coating packaging production line of the present invention; Figure 3 It is a structural schematic diagram of the plastic coating part; Figure 4 It is a structural schematic diagram of the air drying part; Figure 5 It is a structural schematic diagram of the first traction part; Figure 6 It is a structural schematic diagram of the cutting part; Figure 7 It is a structural schematic diagram of the winding machine; Figure 8 It is a structural schematic diagram of the capillary being coiled on the partition table of the tray in the winding machine; Figure 9 It is a structural schematic diagram of the straight pipe bracket mechanism.

[0016] In the figure, 1. The first unwinding reel, 2. The first winding reel, 3. The capillary, 4. The first straightening part, 5. The plastic coating part, 6. The water cooling part, 7. The air drying part, 8. The first traction part, 9. The second unwinding reel, 10. The second straightening part, 11. The second traction part, 12. The cutting part, 13. The straight pipe bracket mechanism, 14. The winding machine, 15. The plastic coating die, 16. The injection molding machine, 17. The base, 18. The forming ring, 19. The fixed seat, 20. The forming cavity, 21. The main runner, 22. The shaping ring, 23. The shaping cavity, 24. The cooling water channel, 25. The water tank, 26. The spray pipe, 27. The air drying valve body, 28. The first air drying channel, 29. The second air drying channel, 30. The air drying air pipe, 31. The liquid discharge hole, 32. The traction frame, 33. The first lower traction mechanism, 34. The first upper traction mechanism, 35. The first lower conveyor belt, 36. The first lower driving wheel, 37. The first lower driving motor, 38. The first upper conveyor belt, 39. The first upper driving wheel, 40. The traction pressing guide rail, 41. The traction pressing slider, 42. The traction pressing spring, 43. The upper tightening screw, 44. The lower tightening screw, 45. The cutter fixing seat, 46. The turntable, 47. The pulley groove, 48. The cutter slide rail, 49. The cutter slider, 50. The cutter seat, 51. The blade, 52. The cutter return spring, 53. The pressing plate, 54. The cutter cover plate, 55. The pressing plate return spring, 56. The roller, 57. The ejector rod, 58. The cutting cylinder, 59. The winding pressing disc mechanism, 60. The winding turntable mechanism, 61. The pressing disc support, 62. The pressing disc cylinder, 63. The movable block, 64. The upper pressing disc, 65. The guide sleeve, 66. The guide post, 67. The turntable support, 68. The tray, 69. The turntable motor, 70. The partition table, 71. The bracket support, 72. The right angle bracket, 73. The discharging cylinder, 74. The straight pipe tray. Detailed implementation manners

[0017] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0019] In addition, the terms "first", "second", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0020] Any process or method description shown in the flowchart or described in other ways herein can be understood as representing a module, segment, or part of code including one or more executable instructions for implementing a specific logical function or process. The scope of the preferred embodiments of the present invention includes additional implementations, where the functions may be executed in a manner that is not shown or discussed, including in a substantially simultaneous manner or in a reverse order according to the functions involved, which should be understood by those skilled in the technical field to which the embodiments of the present invention belong.

[0021] As Figures 1 to 9As shown in the figure, the present invention provides a capillary plastic-coated packaging production line, which includes a plastic coating section and a packaging section. The plastic coating section includes a first unwinding reel 1 arranged at the right end and a first winding reel 2 arranged at the left end. A reel of capillary 3 is arranged on the first unwinding reel 1. After the capillary 3 is unwound from the first unwinding reel 1, it sequentially passes through a first straightening section 4, a plastic coating section 5, a water cooling section 6, a drying section 7, and a first traction section 8 from right to left, and finally winds around the first winding reel 2. The packaging section includes a second unwinding reel 9 arranged at the right end. The coiled capillary 3 that has completed plastic coating is installed on the second unwinding reel 9. After the capillary 3 is unwound from the second unwinding reel 9, it sequentially passes through a second straightening section 10, a second traction section 11, a cutting section 12, and a straight pipe bracket mechanism 13. A winding machine 14 is arranged in the middle of the straight pipe bracket mechanism 13.

[0022] The capillary plastic-coated packaging production line is generally used in the post-process of copper capillary 3 production. When the capillary 3 undergoes tube blanking, drawing, cleaning and drying, and annealing, plastic-coated packaging operations are carried out. The specific operation is to first perform plastic coating treatment on the outer surface of the coiled capillary 3 through the plastic coating section. After the plastic coating is completed, the coiled capillary 3 that has completed plastic coating is cut into a certain length through the packaging section and then wound into a small-volume capillary 3 roll for packaging, so as to be sold on the market.

[0023] In the plastic coating section, the coiled capillary 3 is unwound and expanded through the first unwinding reel 1. The first straightening section 4 straightens the capillary 3 in the previous coiled state. After straightening, the capillary 3 is in a straight state. Then, the straight capillary 3 is plastically coated online through the plastic coating section 5, so that its surface is sealed and protected by the plastic coating layer. When the plastic coating is completed, the capillary 3 is introduced into the water cooling section 6. Since the plastic coating is carried out at a high temperature, the high temperature also causes the plastic coating layer to be relatively soft and unstable in shape. Therefore, the water cooling section 6 can cool the just-sealed capillary 3 in time, so that the plastic coating layer is shaped and hardened. After the water cooling is completed, the state of the plastic coating layer is stabilized, and then the residual cooling water on the surface of the plastic coating layer is blown dry through the drying section 7.

[0024] After the drying is completed, the capillary 3 enters the first traction section 8. Through the first traction section 8, the capillary 3 in the plastic coating section can be provided with a traction force, which can drag the capillary 3 to unwind on the first unwinding reel 1, be pushed forward in the first straightening section 4, and move in the plastic coating section 5, the water cooling section 6, and the drying section 7, providing power for the continuous movement of the capillary 3 between various processes. The first winding reel 2 is arranged at the last working position of the plastic coating section, and can timely wind and collect the capillary 3 that has completed plastic coating into a roll.

[0025] The packaging section cuts the plastic-coated capillary 3 into a certain length, coils the capillary 3 of the specified length, and packages it into a small volume for convenient sale. At the same time, for the convenience of installing the capillary 3 at the user end, the packaging method of the capillary 3 is to start coiling from the middle part, leaving both ends of the capillary 3 to the outermost circle of the packaging roll, so that the end user can directly connect it to the pipeline when using it.

[0026] The plastic coating part 5 includes a plastic coating mold 15 and an injection molding machine 16 connected to the plastic coating mold 15. The plastic coating mold 15 includes a base 17, a forming ring 18 installed on the base 17, and a fixing seat 19 installed on the forming ring 18. The capillary 3 sequentially passes through the base 17, the forming ring 18, and the fixing seat 19. A forming cavity 20 and a main runner 21 communicating with the forming cavity 20 are arranged in the forming ring 18. The injection port of the injection molding machine 16 communicates with the main runner 21. An integer ring 22 pressing against the forming ring 18 is arranged on the fixing seat 19. An integer cavity 23 communicating with the forming cavity 20 is arranged in the integer ring 22. The shape of the right orifice of the integer cavity 23 is an inner cone, and a cooling water channel 24 is arranged on the integer ring.

[0027] The plastic coating part 5 is mainly used for externally wrapping and plastic-sealing the outer surface of the capillary 3 online. The plastic-sealing is mainly completed by the injection molding machine 16. The plastic particles are melted at high temperature by the injection molding machine 16 and transformed into a flowing state, and then injected into the plastic coating mold 15 by the injection molding machine 16. During plastic coating, the capillary 3 moves from right to left through the plastic coating film. The base 17 mainly plays a role in guiding the capillary 3. The forming ring 18 mainly docks with the injection port of the injection molding machine 16. The capillary 3 also passes through the forming cavity 20 of the forming ring 18. The molten plastic in the injection port flows into the connected forming cavity 20 through the main runner 21 and wraps the surface of the capillary 3 therein.

[0028] As the capillary 3 moves to the left, the capillary 3 and the molten plastic on its surface reach the integer cavity together. The inner cone of the right orifice of the integer cavity has the effect of shrinking the surface molten plastic, making the coating layer on the surface of the capillary 3 denser, so that a complete cylindrical coating of plastic is formed on the surface of the capillary 3 after passing through the integer cavity 23. For the preliminary shaping of the plastic coating layer, the integer ring also plays a role in preliminary cooling. After passing through the cooling of the integer ring, the plastic coating layer is preliminarily shaped. The cooling water channel 24 maintains the cooling capacity of the integer ring and avoids the continuous increase in temperature of the integer ring after long-term plastic coating work, which affects the preliminary cooling and shaping function.

[0029] The water cooling part 6 includes a water tank 25 and a spray pipe 26 arranged in the water tank 25. The capillary tube 3 passes through the water tank 25, and the spray pipe 26 sprays cooling water onto the outer surface of the capillary tube 3 in the water tank 25. The capillary tube 3 that has just completed surface plastic coating in the plastic coating part 5 passes through the water tank 25 of the water cooling part 6. The spray pipe 26 arranged along the water tank 25 continuously sprays cooling water onto the capillary tube 3 along the way for cooling. The water tank 25 is used to collect the recycled cooling water. This cooling method can achieve rapid cooling and shaping of the plastic coating layer on the surface of the capillary tube 3.

[0030] The air drying part 7 includes an air drying valve body 27. The capillary tube 3 passes through the air drying valve body 27. A first air drying channel 28 and a second air drying channel 29 are sequentially arranged on the air drying valve body 27 along the moving direction of the capillary tube 3. Air drying air pipes 30 are respectively communicated with the first air drying channel 28 and the second air drying channel 29. Drainage holes 31 are respectively arranged below the first air drying channel 28 and below the second air drying channel 29.

[0031] The air drying part 7 is used to dry the capillary tube 3 that has passed through water cooling in a timely manner. The air drying air pipes 30 provide compressed air for continuous purging at corresponding positions. The first air drying channel 28 arranged on the air drying valve body 27 is a pre-air drying process to purge most of the residual cooling water on the surface of the capillary tube 3. The second air drying channel 29 is a secondary air drying process to finally purge and dry the surface of the capillary tube 3 to achieve the effect of completely dry surface. The residual cooling water purged from the first air drying channel 28 and the second air drying channel 29 finally flows out of the air drying valve body 27 through the drainage holes 31.

[0032] The first traction part 8 includes a traction frame 32, a first lower traction mechanism 33 and a first upper traction mechanism 34. The first upper traction mechanism 34 is arranged above the first lower traction mechanism 33 and clamps the capillary tube 3 therebetween. The first lower traction mechanism 33 includes a first lower conveyor belt 35 and a first lower driving wheel 36 that drives the first lower conveyor belt 35 to rotate. The number of the first lower driving wheels 36 is two and they are separately and fixedly arranged on the traction frame 32. A first lower driving motor 37 is arranged on one of the first lower driving wheels 36.

[0033] The first upper traction mechanism 34 includes a first upper conveyor belt 38 and a first upper transmission wheel 39 that drives the first upper conveyor belt 38 to rotate; the number of the first upper transmission wheels 39 is two and they are separately arranged; a traction pressing guide rail 40 is vertically arranged on the right side of the traction frame 32, a traction pressing slider 41 is slidably mounted on the traction pressing guide rail 40, and the traction pressing slider 41 is fixedly connected to the right-side first upper transmission wheel 39; a traction pressing spring 42 is mounted on the traction frame 32, and the traction pressing spring 42 downwardly pushes the traction pressing slider 41; an upper tightening screw 43 is arranged on the left side of the first upper traction mechanism 34; on the first lower traction mechanism 33, a lower tightening screw 44 is arranged at a position corresponding to the upper tightening screw 43; the upper tightening screw 43 and the lower tightening screw 44 are tightly abutted against each other.

[0034] The first traction part 8 provides power for the forward movement of the capillary tube 3 that is pre-coated and cooled and formed in the previous process, mainly by the way that the first lower traction mechanism 33 and the first upper traction mechanism 34 clamp the capillary tube 3 with each other and pull it backward. The first lower traction mechanism 33 is fixedly arranged, the position of the first lower conveyor belt 35 is continuously operating in a fixed state, while the first upper traction mechanism 34 can be vertically and floatingly pressed on the first lower traction mechanism 33. The specific way is: the right-side first upper transmission wheel 39 can move up and down on the traction pressing guide rail 40 and the traction pressing slider 41, and can be floatingly pressed on the capillary tube 3 by the traction pressing spring 42, applying a continuous positive pressure to the surface of the capillary tube 3 to achieve the effect of clamping the capillary tube 3.

[0035] The main purpose of arranging the upper tightening screw 43 and the lower tightening screw 44 on the left sides of the first upper traction mechanism 34 and the first lower traction mechanism 33 respectively is to provide a certain support for the first upper traction mechanism 34 on the left side. Because the first lower traction mechanism 33 is fixed and the first lower traction mechanism 33 is movable, by adjusting the mutual abutting amount of the upper tightening screw 43 and the lower tightening screw 44, the clamping state of the first upper traction mechanism 34 on the capillary tube 3 can be adjusted, which helps to realize the reliable clamping and traction of the capillary tube 3 without causing deformation or strain to the capillary tube 3.

[0036] The cutting portion 12 includes a cutter fixing base 45 and a turntable 46 rotatably mounted on the cutter fixing base 45. A pulley groove 47 is provided on the outer periphery of the turntable 46. A cutter slide rail 48 is provided radially on the left end face of the turntable 46. A cutter slide block 49 is slidably mounted on the cutter slide rail 48. A cutter seat 50 is fixedly provided on the cutter slide block 49. A blade 51 is fixedly provided on the cutter seat 50. A pressing plate 53 is slidably provided in the inner hole of the cutter fixing base 45. The pressing plate 53 is arranged to the left of the turntable 46 and can rotate with the turntable 46. A cutter cover plate 54 is provided on the left end face of the cutter fixing base 45. A pressing plate return spring 55 is installed between the pressing plate 53 and the turntable 46. The pressing plate return spring 55 pushes the pressing plate 53 towards the cutter cover plate 54.

[0037] An inner tapered hole is provided on the pressing plate 53. The diameter of the inner tapered hole gradually decreases from right to left. A roller 56 is provided on the cutter seat 50. A cutter return spring 52 is further provided on the left end face of the turntable 46. The cutter return spring 52 pushes the cutter seat 50 radially outwards so that the roller 56 fits against the hole wall of the inner tapered hole.

[0038] The cutting portion 12 further includes a push rod 57 and a cutting cylinder 58. The push rod 57 is rotatably provided. The top end of the push rod 57 presses against the outer end face of the pressing plate 53. The end of the push rod 57 is hinged to the piston rod of the cutting cylinder 58. The piston rod of the cutting cylinder 58 extends to push the push rod 57 and presses the pressing plate 53 to the right.

[0039] The cutting portion 12 is used for cutting the capillary 3 to a fixed length and performs the cutting in a way of non-chip cutting. The pulley groove 47 on the turntable 46 can be connected to a power source such as an external drive motor to rotate, so that the turntable 46 can rotate on the cutter fixing base 45. At the same time, the rotation of the turntable 46 can drive the pressing plate 53 and the cutter seat 50 on the end face of the turntable 46 to rotate. The cutter seat 50 can move radially and has a tendency to move outwards under the pushing action of the cutter return spring 52.

[0040] The pressing plate 53 always has a tendency to press tightly against the cutter cover plate 54 to the left under the pushing of the pressing plate return spring 55. When the ejector rod 57 does not push the pressing plate 53, the pressing plate 53 is located at the leftmost side and fits against the cutter cover plate 54. When the ejector rod 57 pushes the pressing plate 53 to the right, the pressing plate 53 moves to the right. At the same time, the inner conical hole squeezes the roller 56 inward, pushing the cutter seat 50 radially inward, so that the blade 51 moves radially towards the center, that is, the feeding of the blade 51 is realized. When the blade 51 feeds, it will squeeze the capillary 3. At the same time, since the cutter rotates with the turntable 46, the blade 51 will continuously squeeze in the circumferential direction, and finally overcome the stiffness of the surface material of the capillary 3, cutting off the wall of the capillary 3 to achieve the cutting effect. In this way, since the cutter does not have its own rotational movement, but only moves in a circular motion following the turntable 46, it is a non-chip cutting process, without the generation of chips, and the cut is smooth and flat, with high cutting quality.

[0041] The coiling machine 14 includes a coiling pressure plate mechanism 59 and a coiling turntable mechanism 60 arranged below the coiling pressure plate mechanism 59. The coiling pressure plate mechanism 59 includes a pressure plate support 61, a pressure plate cylinder 62 vertically arranged on the pressure plate support 61, and a movable block 63 connected to the top of the piston rod of the pressure plate cylinder 62. An upper pressure plate 64 is rotatably arranged on the movable block 63; a guide sleeve 65 is arranged on the pressure plate support 61, and a guide post 66 is slidably inserted through the guide sleeve 65. The lower part of the guide post 66 is fixedly arranged on the movable block 63; the coiling turntable mechanism 60 includes a turntable support 67, a tray 68 rotatably installed on the turntable support 67, and a turntable motor 69 for driving the tray 68 to rotate. A partition table 70 is arranged on the upper end surface of the tray 68. The partition table 70 is a structure of two semi-circular convex platforms separated in the middle, and the capillary 3 passes through the partition table 70.

[0042] The coiling machine 14 is used to coil the plastic-coated capillary 3 that has been straightened and fixed in length into small coils for subsequent market sale. And for the convenience of installation during use, the capillary 3 needs to meet the requirement that the pipe orifices at both ends are on the outermost side during coiling. The coiling machine 14 needs to start coiling from the middle. Therefore, the coiling machine 14 is arranged in the middle of the straight pipe bracket mechanism 13.

[0043] A straight fixed-length capillary 3 is placed on the straight tube bracket mechanism 13. When in use, the platen cylinder 62 of the winding platen mechanism 59 first lifts the upper platen 64 upwards, and the capillary 3 is inserted into the partition 70. The partition 70 is a structure of two semicircular bosses, and the area between the two semicircular bosses is the insertion position of the capillary 3. Then, the upper platen 64 is driven by the platen cylinder 62 to descend and be pressed on the partition 70. The turntable motor 69 drives the tray 68 to rotate, so that the tray 68 can be centered on the partition 70 to carry out pipe winding on the capillary 3. Since the capillary 3 is located in the area between the platen and the tray 68 at this time, the capillary 3 can be orderly wound around the periphery of the partition 70 under this winding drive to form a reel. And since the partition 70 is wound from the middle part of the capillary 3, the two end pipe openings of the capillary 3 must be located at the periphery of the reel after the final winding, which meets the winding requirements.

[0044] The straight tube bracket mechanism 13 includes a bracket support 71, a right-angle frame 72, a discharge cylinder 73 and a straight tube tray 74 arranged below the right-angle frame 72. The middle part of the right-angle frame 72 is hingedly mounted on the bracket support 71; one end of the discharge cylinder 73 is hingedly connected to the bracket support 71, and the other end is hingedly connected to the end of the right-angle frame 72.

[0045] The straight tube support mechanism 13 is used to receive the capillaries 3 of fixed length that have been straightened. A single capillary 3 is first moved to the right-angle frame 72. When the cutting is completed, the unloading cylinder 73 can rotate and flip the right-angle frame 72, so that the capillaries 3 on the right-angle frame 72 naturally roll down to the straight tube tray 74. Finally, the straight tube tray 74 collects the capillaries 3 that have been cut to a fixed length.

[0046] The first unwinding drum 1, the first winding drum 2 and the second unwinding drum 9 are all roller-type structures, and the first straightening part 4 and the second straightening part 10 are roller-type straightening mechanisms. The above structures are all common mechanisms in existing pipes, and the use of such mechanisms can meet the requirements of winding, unwinding and shaping the capillary 3, so the specific structural details are not repeated.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0048] Inspired by the above-described ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A capillary tube plastic packaging production line, comprising a plastic packaging section and a packaging section, characterized in that: The overmolding section comprises a first unwinding drum (1) arranged at the right end and a first winding drum (2) at the left end, the first unwinding drum (1) being provided with a rolled capillary tube (3), the capillary tube (3) being unwound from the first unwinding drum (1) and passing through a first straightening section (4), an overmolding section (5), a water cooling section (6), a blowing section (7), and a first traction section (8) from right to left in sequence, and finally being wound on the first winding drum (2); The packaging section comprises a second unwinding drum (9) arranged at the right end, and the rolled capillary tube (3) that has completed plastic coating is installed on the second unwinding drum (9). After being unwound from the second unwinding drum (9), the capillary tube (3) passes through a second straightening portion (10), a second traction portion (11), a cutting portion (12) and a straight tube bracket mechanism (13) in sequence, and a winding machine (14) is arranged in the middle of the straight tube bracket mechanism (13).

2. A capillary tube plastic packaging production line as claimed in claim 1, characterized in that: The overmolding portion (5) comprises an overmolding mold (15) and an injection molding machine (16) connected to the overmolding mold (15); the overmolding mold (15) comprises a base (17), a molding ring (18) mounted on the base (17), and a fixing seat (19) mounted on the molding ring (18); the capillary tube (3) passes through the base (17), the molding ring (18), and the fixing seat (19) in sequence; a molding cavity is provided in the molding ring (18); (20) and a main runner (21) connected to the molding cavity (20), and the injection port of the injection molding machine (16) is connected to the main runner (21); a shaping ring (22) is provided on the fixing seat (19) and is pressed against the molding ring (18), and a shaping cavity (23) connected to the molding cavity (20) is provided in the shaping ring (22); the right opening of the shaping cavity (23) is in the shape of an inner cone, and a cooling water channel (24) is provided on the shaping ring.

3. A capillary tube plastic packaging production line as claimed in claim 1, characterized in that: The water cooling part (6) comprises a water tank (25) and a spray pipe (26) arranged in the water tank (25), the capillary tube (3) is inserted into the water tank (25), and the spray pipe (26) sprays cooling water onto the surface of the capillary tube (3) in the water tank (25).

4. A capillary tube plastic packaging production line as claimed in claim 1, characterized in that: The blowing portion (7) comprises an air-drying valve body (27), the capillary tube (3) passing through the air-drying valve body (27), a first air-drying channel (28) and a second air-drying channel (29) being arranged in sequence on the air-drying valve body (27) along the moving direction of the capillary tube (3), the first air-drying channel (28) and the second air-drying channel (29) being connected to air-drying air pipes (30) respectively, and drainage holes (31) being arranged below the first air-drying channel (28) and below the second air-drying channel (29) respectively.

5. A capillary tube plastic packaging production line as claimed in claim 1, characterized in that: The first traction part (8) comprises a traction frame (32), a first lower traction mechanism (33) and a first upper traction mechanism (34), wherein the first upper traction mechanism (34) is arranged above the first lower traction mechanism (33) and mutually clamps the capillary (3). The first lower traction mechanism (33) comprises a first lower conveyor belt (35) and a first lower transmission wheel (36) for driving the first lower conveyor belt (35) to rotate, the first lower transmission wheels (36) being two in number and separately fixedly arranged on the traction frame (32), and a first lower transmission motor (37) being arranged on one of the first lower transmission wheels (36); The first upper traction mechanism (34) comprises a first upper conveyor belt (38) and a first upper transmission wheel (39) for driving the first upper conveyor belt (38) to rotate; the number of the first upper transmission wheels (39) is two and they are arranged separately; a traction clamping guide rail (40) is vertically arranged on the right side of the traction frame (32); a traction clamping slider (41) is slidably mounted on the traction clamping guide rail (40); the traction clamping slider (41) is fixedly connected to the first upper transmission wheel (39) on the right side; a traction clamping spring (42) is mounted on the traction frame (32); the traction clamping spring (42) pushes the traction clamping slider (41) downward; an upper clamping screw (43) is arranged on the left side of the first upper traction mechanism (34); a lower clamping screw (44) is arranged on the first lower traction mechanism (33) at a position corresponding to the upper clamping screw (43); the upper clamping screw (43) and the lower clamping screw (44) are clamped against each other.

6. A capillary tube plastic packaging production line as claimed in claim 1, characterized in that: The cutting portion (12) comprises a cutter fixing seat (45) and a rotating disk (46) rotatably mounted on the cutter fixing seat (45); a pulley groove (47) is provided on the outer periphery of the rotating disk (46); a cutter slide rail (48) is provided radially on the left end surface of the rotating disk (46); a cutter slider (49) is slidably mounted on the cutter slide rail (48); a cutter seat (50) is fixedly mounted on the cutter slider (49); and a blade (50) is fixedly mounted on the cutter seat (50). 1); a pressure plate (53) is slidably arranged in the inner hole of the cutter fixing seat (45); the pressure plate (53) is arranged on the left side of the rotating disk (46) and can rotate with the rotating disk (46); a cutter cover plate (54) is arranged on the left end surface of the cutter fixing seat (45); a pressure plate return spring (55) is installed between the pressure plate (53) and the rotating disk (46); the pressure plate return spring (55) pushes the pressure plate (53) toward the cutter cover plate (54); An inner conical hole is provided on the pressure plate (53), the diameter of the inner conical hole gradually decreases from right to left, a roller (56) is provided on the cutter seat (50), and a cutter return spring (52) is also provided on the left end surface of the rotating disk (46), the cutter return spring (52) pushes the cutter seat (50) radially outward to make the roller (56) fit the hole wall of the inner conical hole; The cutting portion (12) further comprises a push rod (57) and a cutting cylinder (58); the push rod (57) is rotatably arranged, the top end of the push rod (57) is pressed against the outer end surface of the pressure plate (53), the end of the push rod (57) is hinged to the piston rod of the cutting cylinder (58), and the piston rod of the cutting cylinder (58) extends out to push the push rod (57) and cause it to press the pressure plate (53) to the right.

7. A capillary tube plastic packaging production line as claimed in claim 1, characterized in that: The winding machine (14) comprises a winding pressure plate mechanism (59) and a winding turntable mechanism (60) arranged below the winding pressure plate mechanism (59). The winding platen mechanism (59) comprises a platen support (61), a platen cylinder (62) vertically downwardly arranged on the platen support (61), and a movable block (63) connected to the top of the piston rod of the platen cylinder (62), an upper platen (64) being rotatably arranged on the movable block (63); a guide sleeve (65) is arranged on the platen support (61), a guide column (66) is slidably inserted in the guide sleeve (65), and the lower part of the guide column (66) is fixedly arranged on the movable block (63); The winding turntable mechanism (60) comprises a turntable bracket (67), a tray (68) rotatably mounted on the turntable bracket (67), and a turntable motor (69) for driving the tray (68) to rotate. A partition table (70) is provided on the upper end surface of the tray (68). The partition table (70) is a structure of two semicircular bosses spaced apart in the middle. The capillary tube (3) passes through the partition table (70).

8. The capillary tube plastic packaging production line according to claim 1, characterized in that: The straight tube bracket mechanism (13) comprises a bracket support (71), a right-angle frame (72), a discharge cylinder (73) and a straight tube tray (74) arranged below the right-angle frame (72); the middle part of the right-angle frame (72) is hingedly mounted on the bracket support (71); one end of the discharge cylinder (73) is hingedly connected to the bracket support (71), and the other end is hingedly connected to the end of the right-angle frame (72).

9. A capillary tube plastic packaging production line as claimed in claim 1, characterized in that: The first unwinding drum (1), the first winding drum (2) and the second unwinding drum (9) are all roller-type structures, and the first straightening part (4) and the second straightening part (10) are both roller-type straightening mechanisms.

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