Knit hose forming system
Patent Information
- Application Number
- CN202311763090.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2043-12-20
AI Technical Summary
[0004]现有设备中通过供气提供胶管内压但是为避免气体的浪费需要将胶管一端封堵,现有工艺中工通过将胶管一端浸入液体中进行封闭,其生产中需较大面积建造冷却封闭池,且胶管内部浸水后需二次处理,同时在挤出机初段处依然无法实现对胶管内部的封堵从而仍然有部分气体的浪费
[0018]本发明使用时,物料通过注胶口注入成型腔的内部并挤压注塑成型,成型后针织胶管随着物料不断注入而一直延长,随着针织胶管的延长,密闭机构与针织胶管贴合将针织胶管的内部封闭,并通过出气口和进气口控制针织胶管内部压力大小,从而使得针织胶管生产过程中只需通过密闭机构即可实现内部密保无须使用大量液体进行密闭,提高生产设备的空间占用率,且装置使用更加便捷。
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Figure CN118061494B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of molding equipment technology, and in particular to a knitted hose molding system. Background Technology
[0002] There are many types of rubber hoses, including steel wire braided hoses, mining hoses, high-pressure hoses, low-pressure hoses, CPE hoses, oil-resistant and corrosion-resistant hoses, automotive hoses, etc. Hose forming methods are mainly classified by whether or not a core is used, into coreless and cored methods. Coreless hose forming uses an extrusion molding machine, where the skeleton layer and outer rubber layer are directly formed on the extruded inner hose. The rubber compound is stirred, mixed, plasticized, and compressed within the barrel by the action of the extrusion screw, then moves towards the die head and is extruded from the die to form a product of a certain shape. Screw extruders are divided into hot-feed and cold-feed types. The former feeds preheated compound that has been preheated by an open mixing mill, while the latter feeds unprocessed rubber compound.
[0003] Chinese Patent Publication No. CN103552226B discloses a pneumatic control mechanism for a coreless extruder for inner hoses. It includes a die head with a cavity for plastic molding. An inner die is located at one end of the cavity facing the extrusion port, and an outer die is located outside the inner die. The outer die is fixedly connected to the extrusion port of the cavity, with a gap between the outer and inner dies. The invention also includes an air supply source and an adjustable pressure stabilizing device connected to the air supply source. The adjustable pressure stabilizing device is connected to an airflow channel within the inner die. The advantages of this invention are: it can provide precisely pressurized compressed air to replace the mandrel in the coreless extrusion of knitted hoses, enabling continuous production of high-quality knitted hoses; the adjustable pressure stabilizing device has a simple structure and low cost.
[0004] In existing equipment, the internal pressure of the hose is supplied by air. However, to avoid gas waste, one end of the hose needs to be sealed. In the existing process, one end of the hose is sealed by immersing it in liquid. This requires the construction of a large-area cooling and sealing tank during production. Furthermore, the hose needs to be treated twice after being immersed in water. At the same time, it is still impossible to seal the inside of the hose at the initial stage of the extruder, resulting in some gas waste.
[0005] Therefore, it is necessary to provide a knitted hose forming system to solve the above-mentioned technical problems. Summary of the Invention
[0006] The purpose of this invention is to provide a knitted hose forming system to solve the above-mentioned technical problems.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a knitted hose forming system, including a machine head, wherein a forming cavity is provided inside the machine head, the forming cavity is connected to an injection port, an air outlet and an air inlet are provided through the machine head, a sealing mechanism is attached to one end of the machine head, and a traction mechanism for limiting the sealing mechanism is provided inside the air inlet.
[0008] Furthermore, the knitted hose is injected and extruded through the forming cavity, and the air inlet pressure is greater than the air outlet pressure. The pressure difference between the air inlet and the air outlet can control the stability of the internal pressure during the production process of the knitted hose.
[0009] As a further embodiment of the present invention, the sealing mechanism includes an inclined surface, a clamping plate, a sleeve plate, a first connecting hole, and a sealing plate. The sealing plate is fitted to one end of the machine head, the inclined surface is disposed at the outer end of the sealing plate, the machine head has an inclined groove adapted to the sealing plate, the sleeve plate is fixedly connected to one side of the sealing plate, the clamping plate has multiple sets of elastic connections to one side of the sealing plate, a clamping cavity is formed between the clamping plate and the sleeve plate, and the clamping cavity is adapted to the forming cavity.
[0010] Furthermore, the sleeve plate is fitted to the outer end face of the knitted tubing, and the clamping plate is fitted to the inner wall of the knitted tubing.
[0011] As a further embodiment of the present invention, the sealing plate has an insertion groove inside, one end of the insertion groove extends to the surface of the inclined part, a sensing rod is elastically connected inside the insertion groove, a first connecting hole is opened in the middle of the sealing plate, and a second connecting hole adapted to the first connecting hole is provided at one end of the sensing rod.
[0012] As a further embodiment of the present invention, a first connecting piece is fixedly connected to the side end face of the sensing rod, and a second connecting piece is elastically connected to the first connecting piece through an elastic element. Both the second connecting piece and the first connecting piece are slidably connected inside the insertion groove, and the second connecting piece is fixedly connected to the clamping plate.
[0013] Furthermore, the clamping plate is arc-shaped and the curvature is adapted to the inner wall of the knitting tube, and the second connecting piece has a through hole adapted to the sensing rod.
[0014] As a further embodiment of the present invention, the traction mechanism includes an airflow distribution mechanism and a traction device. The airflow distribution mechanism is placed on the inner wall of the air inlet to distribute the airflow evenly, and the traction device is fitted with the sealing mechanism to limit the sealing mechanism.
[0015] As a further embodiment of the present invention, the traction device includes a connecting rod, a magnetic ring, and a connecting rod. The magnetic ring is magnetically attached to one side of the sealing mechanism, and the inside of the magnetic ring is fixedly connected to the outer end face of the connecting rod through the connecting rod.
[0016] As a further embodiment of the present invention, the airflow distribution mechanism includes distribution blades and a rotating ring, the rotating ring being rotatably connected to the inner wall of the air inlet, and the distribution blades having multiple sets symmetrically distributed on the inner wall of the rotating ring.
[0017] As a further embodiment of the present invention, a drive column is fixedly connected to one end of the uniformly distributed blade away from the rotating ring. The drive column has a connecting groove adapted to the connecting rod inside. The connecting groove has a spiral groove inside. The outer end face of the connecting rod has a protrusion adapted to the spiral groove.
[0018] In this invention, the material is injected into the molding cavity through the injection port and extruded and molded. After molding, the knitted hose extends as material is continuously injected. As the knitted hose extends, the sealing mechanism fits into the knitted hose to seal its interior. The internal pressure of the knitted hose is controlled by the air outlet and air inlet. Thus, the internal sealing of the knitted hose can be achieved simply by using the sealing mechanism during the production process, without the need for a large amount of liquid for sealing. This improves the space utilization of the production equipment and makes the device more convenient to use. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the sealing mechanism structure of the present invention; Figure 3 This is a schematic diagram of the sealing mechanism of the present invention in a sealed state; Figure 4 This is a structural diagram of the present invention in its production state; Figure 5 This is the invention Figure 1 Enlarged structural diagram at point B; Figure 6 This is the invention Figure 1 Enlarged view of section A shows the structural intent; Figure 7 This is a schematic diagram of the cross-sectional structure of the sealing plate of the present invention; Figure 8 This is a cross-sectional structural diagram of the sealing plate of the present invention in its working state; Figure 9 This is a schematic diagram of the clamping plate structure of the present invention; Figure 10 This is the invention Figure 4 A schematic diagram of the enlarged structure of the C-shaped section; Figure 11 This is the invention Figure 4 A schematic diagram of the enlarged structure at point D; Figure 12 This is a schematic diagram of the traction device structure of the present invention; Figure 13 This is a schematic diagram of the airflow distribution mechanism of the present invention.
[0021] In the diagram: 1. Machine head; 2. Injection port; 3. Molding cavity; 4. Air outlet; 5. Air inlet; 6. Traction mechanism; 7. Knitting hose; 8. Sealing mechanism; 9. Sloping part; 10. Clamping plate; 11. Insertion groove; 12. Sleeve plate; 13. First connecting hole; 14. Clamping cavity; 15. Sealing plate; 16. Sensing rod; 17. Airflow distribution mechanism; 18. Traction device; 20. First connecting piece; 21. Second connecting hole; 22. Second connecting piece; 23. Elastic element; 24. Through hole; 25. Connecting rod; 26. Magnetic ring; 27. Connecting rod; 28. Distributing blade; 29. Rotating ring; 30. Drive column; 31. Spiral groove. Detailed Implementation
[0022] Example
[0023] like Figure 1 and Figure 4 As shown, a knitted hose forming system includes a machine head 1, a forming cavity 3 inside the machine head 1, a glue injection port 2 connected to the forming cavity 3, an air outlet 4 and an air inlet 5 through the machine head 1, a sealing mechanism 8 attached to one end of the machine head 1, and a traction mechanism 6 inside the air inlet 5 for limiting the sealing mechanism 8.
[0024] Furthermore, the knitted hose 7 is injected and extruded through the forming cavity 3. The air inlet 5 has a higher air outlet 4 than the air outlet 4. The pressure difference between the air inlet 5 and the air outlet 4 can control the stability of the internal pressure of the knitted hose 7 during the production process.
[0025] In use, the material is injected into the molding cavity 3 through the injection port 2 and squeezed into shape. After molding, the knitted tube 7 extends as the material is continuously injected. As the knitted tube 7 extends, the sealing mechanism 8 fits with the knitted tube 7 to seal the inside of the knitted tube 7. The pressure inside the knitted tube 7 is controlled by the air outlet 4 and the air inlet 5. Thus, the internal sealing of the knitted tube 7 can be achieved by the sealing mechanism 8 alone during the production process without the need for a large amount of liquid for sealing, which improves the space utilization of the production equipment and makes the device more convenient to use.
[0026] Example
[0027] Based on Example 1, such as Figure 1 - Figure 3 As shown, the sealing mechanism 8 includes an inclined surface 9, a clamping plate 10, a sleeve plate 12, a first connecting hole 13, and a sealing plate 15. The sealing plate 15 is attached to one end of the machine head 1. The inclined surface 9 is located at the outer end of the sealing plate 15. The machine head 1 has an inclined groove that is adapted to the sealing plate 15. The sleeve plate 12 is fixedly connected to one side of the sealing plate 15. The clamping plate 10 has multiple sets of elastic connections to one side of the side end face of the sealing plate 15. A clamping cavity 14 is formed between the clamping plate 10 and the sleeve plate 12. The clamping cavity 14 is adapted to the forming cavity 3.
[0028] Furthermore, the sleeve 12 is attached to the outer end face of the knitted tubing 7, and the clamping plate 10 is attached to the inner wall of the knitted tubing 7.
[0029] During use, as the material is injected, the knitting tube 7 gradually moves into the clamping cavity 14. The clamping plate 10 presses the inner wall of the knitting tube 7, which fixes the sealing mechanism 8 to one end of the knitting tube 7, thereby sealing the inner wall of the knitting tube 7, stabilizing the internal pressure of the knitting tube 7, and improving the production efficiency and quality of the knitting tube 7.
[0030] like Figure 1 - Figure 6 As shown, the sealing plate 15 has an insertion groove 11 inside, one end of which extends to the surface of the inclined part 9. The insertion groove 11 is elastically connected to a sensing rod 16. The sealing plate 15 has a first connecting hole 13 in the middle, and one end of the sensing rod 16 has a second connecting hole 21 that matches the first connecting hole 13.
[0031] In use, to improve the clamping effect of the sealing mechanism 8 on the knitting hose 7, a first connecting hole 13 with active closing is provided. When the sealing mechanism 8 is in contact with the machine head 1, the sensing rod 16 is compressed inside the insertion groove 11 under the inclined surface abutment. The first connecting hole 13 is connected to the second connecting hole 21. At this time, the sealing mechanism 8 closes the air outlet 4, and the air inlet 5 is connected to the outside through the first connecting hole 13. The gas enters the clamping cavity 14 through the air inlet 5 and is discharged, thereby taking away the heat inside the machine head 1. Thus, the end of the knitting hose 7 is cooled in the early stage of knitting hose 7 forming, which accelerates the forming, cooling and hardening of the knitting hose 7, thereby improving the efficiency of knitting hose 7 forming. The clamping plate 10 also prevents the end of the knitted tubing 7 from deforming due to the clamping plate 10. As the knitted tubing 7 moves, the sealing mechanism 8 disengages from the machine head 1. At this time, the sensing rod 16 extends under the action of elasticity, thereby causing the second connecting hole 21 to be misaligned with the first connecting hole 13 and closing the first connecting hole 13. At this time, the air outlet 4 moves with the sealing mechanism 8 and connects with the air inlet 5. Thus, the cooperation between the air outlet 4 and the air inlet 5 can effectively control the stability of the inner wall pressure of the subsequently extended knitted tubing 7, so that the device can adaptively control the closing state of the first connecting hole 13 according to the state of the knitted tubing 7.
[0032] like Figure 1 - Figure 11 As shown, a first connecting piece 20 is fixedly connected to the side end face of the sensing rod 16. The first connecting piece 20 is elastically connected to a second connecting piece 22 through an elastic member 23. Both the second connecting piece 22 and the first connecting piece 20 are slidably connected inside the insertion slot 11. The second connecting piece 22 is fixedly connected to the clamping plate 10.
[0033] Furthermore, the clamping plate 10 is arc-shaped and its curvature is adapted to the inner wall of the knitting tube 7, and the second connecting piece 22 has a through hole 24 adapted to the sensing rod 16.
[0034] In use, to improve the ease of driving the clamping plate 10, a first connecting piece 20 is provided. When the sealing mechanism 8 moves outward, the sensing rod 16 moves inside the insertion slot 11 under the action of the inclined plane, thereby stretching the elastic element 23 between the second connecting piece 22 and the first connecting piece 20 through the first connecting piece 20. As a result, when the sealing mechanism 8 moves outward relative to the machine head 1 under the abutment action of the knitting tube 7, the sensing rod 16 extends, causing the elastic element 23 to pull the clamping plate 10 to press against the inner wall of the knitting tube 7, and cooperate with the sleeve plate 12 and the knitting tube. The end is fixed so that the sealing mechanism 8 automatically locks with the end of the knitting hose 7 as the knitting hose 7 extends out of the machine head 1, sealing the inside of the knitting hose 7. After the knitting hose 7 is produced, the fixing of the knitting hose 7 can be released by simply pressing the sensing rod 16 back into the insertion slot 11. The sealing mechanism 8 can then be placed back at the end of the machine head 1 for continued use. In actual production, multiple sets of sealing mechanisms 8 can be set up for cyclic use, which greatly improves the production efficiency of the knitting hose 7 and reduces the waste of end materials during the production of the knitting hose 7.
[0035] like Figure 1 - Figure 4 As shown, the traction mechanism 6 includes an airflow distribution mechanism 17 and a traction device 18. The airflow distribution mechanism 17 is placed on the inner wall of the air inlet 5 to distribute the airflow evenly. The traction device 18 is fitted with the sealing mechanism 8 to limit the sealing mechanism 8.
[0036] During use, the traction device 18 pulls the sealing mechanism 8 so that the sealing mechanism 8 is always in contact with the end of the machine head 1, and the airflow is evenly distributed inside the air inlet 5 by the airflow distribution mechanism 17 to avoid the airflow blowing directly and causing the local pressure inside the knitting hose 7 to rise.
[0037] like Figure 1 - Figure 4 and Figure 12 - Figure 13 As shown, the traction device 18 includes a connecting rod 25, a magnetic ring 26 and a connecting rod 27. The magnetic ring 26 is magnetically attached to one side of the sealing mechanism 8, and the inside of the magnetic ring 26 is fixedly connected to the outer end face of the connecting rod 27 through the connecting rod 25.
[0038] In use, the end of the connecting rod 27 away from the connecting rod 25 passes through the air inlet 5 and extends out of the machine head 1. The connecting rod 27 is attracted by the magnetic force of the magnetic ring 26 so that the sealing mechanism 8 is always in contact with the machine head 1 when no material is being injected.
[0039] like Figure 1 - Figure 4 and Figure 12 - Figure 13 As shown, the airflow distribution mechanism 17 includes distribution blades 28 and a rotating ring 29. The rotating ring 29 is rotatably connected to the inner wall of the air inlet 5, and the distribution blades 28 are provided with multiple sets symmetrically distributed on the inner wall of the rotating ring 29.
[0040] During use, the airflow inside the air inlet 5 can be evenly distributed by the uniformly distributed blades 28, making the airflow more dispersed and avoiding excessive local pressure on the inner wall of the knitted hose 7.
[0041] like Figure 1 - Figure 4 and Figure 12 - Figure 13 As shown, a drive column 30 is fixedly connected to one end of the uniformly distributed blade 28 away from the rotating ring 29. The drive column 30 has a connecting groove adapted to the connecting rod 27. The connecting groove has a spiral groove 31 inside. The outer end face of the connecting rod 27 has a protrusion adapted to the spiral groove 31.
[0042] In use, the connecting rod 27 will move synchronously with the movement of the sealing mechanism 8, and the outer end face of the connecting rod 27 is provided with a protrusion. The movement of the protrusion inside the spiral groove 31 can drive the rotation of the uniformly distributed blade 28 through the spiral groove 31, thereby further improving the uniform distribution effect of the uniformly distributed blade 28 on the airflow. The spiral groove 31 and the protrusion can be set in pairs as needed to maintain the stability of the resistance to the connecting rod 27 and avoid affecting the forming of the knitted hose 7.
[0043] Furthermore, a magnetic sheet is provided at one end of the sensing rod 16, and the end of the sensing rod 16 facing away from the magnetic sheet is arc-shaped, thereby improving the abutment driving effect of the inclined surface on the sensing rod 16. At the same time, the magnetic sheet at one end of the sensing rod 16 corresponds to the magnetic ring 26 when the sensing rod 16 extends out of the insertion groove 11, thereby improving the connection stability between the sealing mechanism 8 and the magnetic ring 26. When the sensing rod 16 is pressed into the insertion groove 11 to separate the sealing mechanism 8 from the knitting tube 7, the magnetic sheet and the magnetic ring 26 are misaligned at this time, and the attraction force is reduced, which can separate the sealing mechanism 8 from the magnetic ring 26. After the knitting tube 7 is separated, the magnetic ring 26 can be reattached to the sealing mechanism 8. Then, by retracting the connecting rod 27, the sealing mechanism 8 can be synchronously driven to return to the end of the machine head 1, which greatly improves the practicality and convenience of the device.
[0044] Working principle: Material is injected into the molding cavity 3 through the injection port 2 and extruded and injection molded. After molding, the knitted tube 7 extends as material is continuously injected. As the knitted tube 7 extends, the sealing mechanism 8 fits against the knitted tube 7 to seal its interior. The internal pressure of the knitted tube 7 is controlled by the air outlet 4 and the air inlet 5. This allows the internal sealing of the knitted tube 7 to be achieved solely through the sealing mechanism 8 during production, eliminating the need for large amounts of liquid for sealing, thus improving the space utilization of the production equipment and making the device more convenient to use. As the material is injected, the knitted tube 7 gradually moves into the clamping cavity 14. The clamping plate 10 presses against the inner wall of the knitted tube 7, fixing the sealing mechanism 8 to one end of the knitted tube 7, thereby securing the knitted tube. The inner wall of the hose 7 is sealed, which stabilizes the internal pressure of the knitted hose 7 and improves the production efficiency and quality of the knitted hose 7. To improve the clamping effect of the sealing mechanism 8 on the knitted hose 7, an active closing first connecting hole 13 is provided. When the sealing mechanism 8 is in contact with the machine head 1, the sensing rod 16 is compressed inside the insertion groove 11 under the inclined surface abutment. The first connecting hole 13 is connected to the second connecting hole 21. At this time, the sealing mechanism 8 closes the air outlet 4, and the air inlet 5 is connected to the outside through the first connecting hole 13. The gas enters the clamping cavity 14 through the air inlet 5 and is discharged, thereby taking away the heat inside the machine head 1. Thus, the end of the knitted hose 7 is cooled in the early stage of knitting hose 7 formation, which accelerates the forming and cooling hardening of the knitted hose 7, thereby improving the clamping effect of the clamping plate 10 on the knitted hose 7. The holding effect also avoids deformation of the end of the knitting tube 7 caused by the clamping plate 10. As the knitting tube 7 moves, the sealing mechanism 8 disengages from the machine head 1. At this time, the sensing rod 16 extends under the action of elasticity, thereby causing the second connecting hole 21 to be misaligned with the first connecting hole 13 and closing the first connecting hole 13. At this time, the air outlet 4 moves with the sealing mechanism 8 and connects with the air inlet 5. Thus, the cooperation between the air outlet 4 and the air inlet 5 can effectively control the stability of the inner wall pressure of the subsequently extended knitting tube 7, so that the device can adaptively control the closing state of the first connecting hole 13 according to the state of the knitting tube 7, improving the driving convenience of the clamping plate 10. A first connecting piece 20 is provided. When the sealing mechanism 8 moves outward, the sensing rod 16 moves inside the insertion groove 11 under the action of the inclined surface, from The first connecting piece 20 stretches the elastic element 23 between the second connecting piece 22 and the first connecting piece 20. This causes the sealing mechanism 8 to move outward relative to the machine head 1 under the abutment action of the knitted hose 7. The sensing rod 16 extends, causing the elastic element 23 to pull the clamping plate 10 to press against the inner wall of the knitted hose 7. This, combined with the sleeve plate 12, fixes the end of the knitted hose 7. Thus, the sealing mechanism 8 automatically locks with the end of the knitted hose 7 as it extends out of the machine head 1, sealing the inside of the knitted hose 7. After the knitted hose 7 is produced, simply pressing the sensing rod 16 back into the insertion slot 11 releases the fixation of the knitted hose 7, and the sealing mechanism 8 can be repositioned at the end of the machine head 1 for continued use. In actual production, multiple sets of sealing mechanisms 8 can be set up for cyclical use.This significantly improves the production efficiency of the knitted hose 7 and reduces the waste of raw materials at the end of the knitted hose 7 during production. The traction device 18 pulls the sealing mechanism 8, ensuring it remains in contact with the end of the machine head 1. The airflow distribution mechanism 17 evenly distributes the airflow inside the air inlet 5, preventing direct airflow from causing localized pressure increases inside the knitted hose 7. The end of the connecting rod 27 opposite to the connecting rod 25 extends through the air inlet 5 and out of the machine head 1. The magnetic force of the magnetic ring 26, combined with the connecting rod 27, ensures the sealing mechanism 8 remains in contact with the machine head 1 even when no material is being injected. The evenly distributed blades 28 distribute the airflow evenly inside the air inlet 5, further dispersing the airflow and preventing excessive localized pressure on the inner wall of the knitted hose 7. The connecting rod 27 moves synchronously with the sealing mechanism 8. The outer end face of the connecting rod 27 has a protrusion; the movement of this protrusion within the spiral groove 31 drives the rotation of the evenly distributed blades 28, further improving the even distribution effect of the evenly distributed blades 28 on the airflow. 31 and the protrusions can be set in pairs as needed to maintain the stability of the resistance to the connecting rod 27 and avoid affecting the forming of the knitted hose 7. One end of the sensing rod 16 is provided with a magnetic sheet, and the end of the sensing rod 16 away from the magnetic sheet is set in an arc shape, thereby improving the abutment driving effect of the inclined surface on the sensing rod 16. At the same time, one end of the sensing rod 16 is provided with a magnetic sheet. When the sensing rod 16 extends out of the insertion groove 11, the magnetic sheet corresponds to the position of the magnetic ring 26, thereby improving the connection stability between the sealing mechanism 8 and the magnetic ring 26. When the sensing rod 16 extends out of the insertion groove 11, the magnetic sheet corresponds to the position of the magnetic ring 26, thereby improving the connection stability between the sealing mechanism 8 and the magnetic ring 26. When the abutment rod 16 is pressed into the insertion groove 11 to separate the sealing mechanism 8 from the knitting tube 7, the magnetic sheet and magnetic ring 26 are misaligned, reducing the attraction force and allowing the sealing mechanism 8 to separate from the magnetic ring 26. After the knitting tube 7 is separated, the magnetic ring 26 can be reattached to the sealing mechanism 8. Then, by retracting the connecting rod 27 (the specific retraction structure can be selected according to the material of the connecting rod 27), the sealing mechanism 8 can be synchronously reset to the end of the machine head 1, greatly improving the practicality and convenience of the device.
Claims
1. A knitted hose forming system, comprising a knitting head, characterized in that: The machine head has a molding cavity inside, which is connected to a glue injection port. The machine head also has a through air outlet and an air inlet. A sealing mechanism is attached to one end of the machine head, and a traction mechanism for limiting the sealing mechanism is provided inside the air inlet. The sealing mechanism includes an inclined section, a clamping plate, a sleeve plate, and a sealing plate. The sealing plate is fitted to one end of the machine head. The inclined section is located at the outer end of the sealing plate. The machine head has an inclined groove adapted to the sealing plate. The sleeve plate is fixedly connected to one side of the sealing plate. The clamping plate has multiple sets of elastic connections to one side of the sealing plate. A clamping cavity is formed between the clamping plate and the sleeve plate. The clamping cavity is adapted to the forming cavity. The sealing plate has an insertion groove inside, one end of which extends to the surface of the inclined part. A sensing rod is elastically connected inside the insertion groove. A first connecting hole is opened in the middle of the sealing plate. A second connecting hole that matches the first connecting hole is provided at one end of the sensing rod. The side end face of the sensing rod is fixedly connected to a first connecting piece, and the first connecting piece is elastically connected to a second connecting piece through an elastic element. Both the second connecting piece and the first connecting piece are slidably connected inside the insertion slot, and the second connecting piece is fixedly connected to the clamping plate.
2. The knitted hose forming system according to claim 1, characterized in that: The traction mechanism includes an airflow distribution mechanism and a traction device. The airflow distribution mechanism is placed on the inner wall of the air inlet to distribute the airflow evenly, and the traction device is fitted with the sealing mechanism to limit the sealing mechanism.
3. The knitted hose forming system according to claim 2, characterized in that: The traction device includes a connecting rod, a magnetic ring, and a connecting rod. The magnetic ring is magnetically attached to one side of the sealing mechanism, and the inside of the magnetic ring is fixedly connected to the outer end face of the connecting rod through the connecting rod.
4. The knitted hose forming system according to claim 3, characterized in that: The airflow distribution mechanism includes distribution blades and a rotating ring. The rotating ring is rotatably connected to the inner wall of the air inlet, and the distribution blades are provided in multiple sets symmetrically distributed on the inner wall of the rotating ring.
5. The knitted hose forming system according to claim 4, characterized in that: The uniformly distributed blade is fixedly connected to a drive column at one end away from the rotating ring. The drive column has a connecting groove inside that matches the connecting rod. The connecting groove has a spiral groove inside. The outer end face of the connecting rod has a protrusion that matches the spiral groove.
Citation Information
Patent Citations
Pneumatic control mechanism for coreless extruder with inner tubing
CN103552226B
Pre-setting supporting assembling die for plastic extruder
CN101579915A
Pneumatic control mechanism of inner rubber pipe core-free extruding machine
CN103552226A