Hot-bent nozzle structure

Abstract

The utility model discloses a nozzle hot bending forming structure relates to the technical field of earphone processing equipment, it includes upper fixture, lower fixture, movable insert, heating insert, first drive arrangement and second drive arrangement, movable insert is detachably connected with lower fixture, and movable insert is equipped with a plurality of assembly parts, and the operator can install a plurality of nozzles in advance batch in the assembly part of movable insert, then install the movable insert with nozzle again to lower fixture as a whole, in the heating stage, heating insert and lower fixture are relatively close, and heating part generates heat and heats the nozzle, makes the nozzle reach the temperature of suitable hot bending forming, when the nozzle heats to the suitable temperature, upper fixture and lower fixture are relatively close until the mold closes, at this moment, the first bending part on upper fixture and the second bending part on lower fixture cooperate each other, and press the nozzle after heating, and the nozzle is shaped as the bending shape, and this batch operation mode saves a large amount of manpower and time cost.

Description

Technical Field

[0001] This utility model relates to the technical field of headphone processing equipment, specifically to a nozzle hot bending forming structure. Background Technology

[0002] As a widely used audio device, the sound quality and wearing comfort of headphones have always been the focus of consumers. The headphone nozzle, as an important component of headphones, not only affects the appearance of headphones, but also has a significant impact on sound quality. In order to meet different design requirements and sound quality optimization, headphone nozzles often need to be specially shaped. Hot bending is a common and effective processing method.

[0003] In existing headphone nozzle hot bending forming technology, a specific hot bending forming structure is usually used to achieve the hot bending process of the nozzle. This hot bending forming structure mainly includes a fixture for fixing the nozzle and a heating and pressurizing device to provide the temperature and pressure required for hot bending. During the hot bending process, the headphone nozzles to be processed need to be embedded into the fixture one by one to ensure that the nozzles can maintain a stable position and posture during the hot bending process, thereby ensuring the accuracy and quality of hot bending forming.

[0004] However, this existing nozzle hot bending forming structure has obvious drawbacks. The operation method of embedding each nozzle into the fixture one by one greatly increases the assembly time. The embedding of each nozzle requires operators to perform meticulous positioning and installation. In the case of large-scale production, this process will consume a lot of manpower and time costs. Moreover, the long assembly process will reduce the efficiency of the entire production process, resulting in a longer production cycle and making it difficult to meet the market's demand for rapid product delivery. In addition, the excessive assembly time also increases the possibility of human error. Once problems such as inaccurate positioning occur, it may lead to quality defects in the hot-bent nozzles, further affecting the product yield and production efficiency.

[0005] This utility model was proposed in response to the shortcomings of the existing technology. Utility Model Content

[0006] The existing nozzle hot bending forming structure mentioned above usually requires each nozzle to be embedded in the fixture, which has the technical problem of excessive assembly time.

[0007] The technical solution adopted by this utility model to solve its technical problem is:

[0008] A nozzle hot bending forming structure includes an upper fixture, a lower fixture, a movable insert, a heating insert, a first driving device, and a second driving device. The movable insert is detachably connected to the lower fixture. The upper fixture is located above the movable insert and has multiple mounting parts for mounting the nozzle. The heating insert is located on one side of the lower fixture and has a heating part. The first driving device can drive the heating insert and the lower fixture to move away from or towards each other. When the first driving device drives the lower fixture and the heating insert to move closer, the heating part can heat the nozzle. The upper fixture has a first bending part, and the lower fixture has a second bending part. The second driving device can drive the upper fixture and the lower fixture to move away from or towards each other. When the second driving device drives the upper fixture and the lower fixture to close the mold, the first bending part and the second bending part can press the heated nozzle together to shape the nozzle into a bent shape.

[0009] In the nozzle hot bending forming structure described above, the heating part includes a plurality of heating holes provided on one side of the heating insert, the heating holes allowing the nozzle to be inserted and heating the bent portion of the nozzle.

[0010] As described above, the nozzle hot bending forming structure further includes a clearance through hole penetrating the top and bottom of the heating insert. One side of the clearance through hole communicates with the heating hole, and the clearance through hole can accommodate the end of the nozzle with the nozzle cap.

[0011] In the nozzle hot bending forming structure described above, the first bending portion is located at the bottom of the upper fixture and bends downward. The bottom of the first bending portion is provided with a first pressing groove corresponding to the nozzle. The second bending portion is provided with a second pressing groove corresponding to the first pressing groove and bends downward. When the upper fixture and the lower fixture are closed, the first pressing groove can force the bending portion of the nozzle to bend downward, so that the bending portion of the nozzle abuts against the second pressing groove, and the bending portion is restricted to be shaped between the first pressing groove and the second pressing groove.

[0012] As described above, in the nozzle hot bending forming structure, the second bending part is further provided with an avoidance groove located at the front end of the second pressing groove and capable of avoiding the nozzle cap at the front end of the nozzle.

[0013] In the nozzle hot bending forming structure described above, a sliding component is provided between the second bending portion and the lower fixture, which allows the second bending portion to slide up and down along the vertical direction of the lower fixture.

[0014] As described above, the nozzle hot bending forming structure includes two first sliding protrusions located on one side of the lower fixture and extending outward, a sliding groove located inside each of the first sliding protrusions, and second sliding protrusions located on both sides of the second bending portion and corresponding one-to-one with the sliding grooves.

[0015] The nozzle hot bending forming structure described above further includes a guide block located at the bottom of the second bending portion. The guide block is provided with a guide slope. When the lower fixture and the heating insert are relatively close, the second bending portion can slide downward relative to each other along the guide slope, so that the second bending portion moves downward along the vertical direction of the lower fixture through the sliding assembly.

[0016] As described above, in the nozzle hot bending forming structure, the lower fixture is provided with a positioning groove that enables the movable insert to be positioned and assembled on the lower fixture.

[0017] In the nozzle hot bending forming structure described above, the assembly part includes an assembly hole that can be inserted into the corresponding nozzle rear end.

[0018] The beneficial effects of this utility model are as follows:

[0019] This utility model relates to the technical field of headphone processing equipment, specifically a nozzle hot bending forming structure. It includes an upper fixture, a lower fixture, a movable insert, a heating insert, a first driving device, and a second driving device. The movable insert is detachably connected to the lower fixture and has multiple assembly parts. Operators can pre-install multiple nozzles in batches within the assembly parts of the movable insert, and then install the entire movable insert with nozzles onto the lower fixture. During the heating stage, the heating insert and the lower fixture are relatively close, and the heating part generates heat to heat the nozzles, bringing them to a suitable temperature for hot bending. Once the nozzles have reached the appropriate temperature, the upper and lower fixtures are brought closer together until the mold is closed. At this point, the first bending part on the upper fixture and the second bending part on the lower fixture cooperate to press the heated nozzles together, shaping them into a bent shape. This batch operation method saves significant manpower and time costs.

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is one of the exploded schematic diagrams of the nozzle hot bending forming structure of this utility model (the upper fixture, lower fixture and heating insert are all in a state where the nozzle on the movable insert has not been processed).

[0022] Figure 2 This is the second exploded schematic diagram of the nozzle hot bending forming structure of this utility model (the heating insert is in the state of heating the nozzle on the movable insert).

[0023] Figure 3 This is the third exploded view of the nozzle hot bending forming structure of this utility model (the heating insert is in a state of heating the nozzle on the movable insert, and part of the structure of the heating insert is hidden).

[0024] Figure 4 This is the fourth exploded view of the nozzle hot bending forming structure of this utility model (the heating insert is in the state of heating the nozzle on the movable insert, and part of the heating insert structure and the upper fixture are hidden).

[0025] Figure 5 This is the fifth exploded schematic diagram of the nozzle hot bending forming structure of this utility model (the upper and lower fixtures are in the state of pressing the nozzle on the movable insert).

[0026] Figure 6 This is the sixth exploded view of the nozzle hot bending forming structure of this utility model (the upper and lower fixtures are in a state of pressing the nozzle on the movable insert, and part of the heating insert structure is hidden).

[0027] Figure 7 This is the seventh exploded schematic diagram of the nozzle hot bending forming structure of this utility model (the upper fixture, lower fixture and heating insert are all in a state where the nozzle on the movable insert has not been processed).

[0028] Figure 8 This is the eighth exploded schematic diagram of the nozzle hot bending forming structure of this utility model (the heating insert is in the state of heating the nozzle on the movable insert).

[0029] Figure 9 This is the ninth exploded schematic diagram of the nozzle hot bending forming structure of this utility model (the upper and lower fixtures are in the state of pressing the nozzle on the movable insert).

[0030] Figure 10 This is the tenth exploded view of the nozzle hot bending forming structure of this utility model;

[0031] Figure 11 This is eleventh exploded view of the nozzle hot bending forming structure of this utility model;

[0032] Figure 12 This is the 12th exploded view of the nozzle hot bending forming structure of this utility model (the state of the nozzle after bending). Detailed Implementation

[0033] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0034] like Figures 1 to 12As shown, the nozzle hot bending forming structure of this embodiment includes an upper fixture 1, a lower fixture 2, a movable insert 3, a heating insert 4, a first driving device, and a second driving device. The movable insert 3 is detachably connected to the lower fixture 2. The upper fixture 1 is located above the movable insert 3. The movable insert 3 is provided with multiple mounting parts 31 for mounting the nozzle 5. The heating insert 4 is located on one side of the lower fixture 2 and is provided with a heating part 41. The first driving device can drive the heating insert 4 and the lower fixture 2 to move away from or towards each other. When the first driving device drives the lower fixture 2 and the heating insert 4 to approach each other, the heating part 41 can heat the nozzle 5; the upper fixture 1 is provided with a first bending part 11, and the lower fixture 2 is provided with a second bending part 21. The second driving device can drive the upper fixture 1 and the lower fixture 2 to move away from each other or move closer to each other. When the second driving device drives the upper fixture 1 and the lower fixture 2 to close the mold, the first bending part 11 and the second bending part 21 can press the heated nozzle 5 together so that the nozzle 5 is shaped into a bent shape.

[0035] Specifically, since the movable insert 3 is detachably connected to the lower fixture 2, and the movable insert 3 is provided with multiple assembly parts 31 that can assemble nozzles 5, the operator can pre-install multiple nozzles 5 in batches in the assembly parts 31 of the movable insert 3, and then install the movable insert 3 with nozzles 5 onto the lower fixture 2 as a whole to complete the assembly preparation work of nozzles 5.

[0036] During the heating stage, the first drive device is activated, driving the heating insert 4 and the lower fixture 2 to move closer to each other. When they are close to a certain position, the heating part 41 on the heating insert 4 contacts or approaches the nozzle 5 mounted on the movable insert 3. The heating part 41 generates heat to heat the nozzle 5, so that the nozzle 5 reaches a temperature suitable for hot bending.

[0037] During the hot bending stage, when the nozzle 5 is heated to a suitable temperature, the first driving device drives the heating insert 4 and the lower fixture 2 to move away from each other, and the second driving device is activated to drive the upper fixture 1 and the lower fixture 2 to move closer to each other until the mold is closed. At this time, the first bending part 11 on the upper fixture 1 and the second bending part 21 on the lower fixture 2 cooperate with each other to press the heated nozzle 5. Since the nozzle 5 is in a hot state, it has good plasticity. Under the action of the first bending part 11 and the second bending part 21, the nozzle 5 is shaped into a bent shape.

[0038] During the demolding stage, after the hot bending is completed, the second drive device drives the upper fixture 1 and the lower fixture 2 to move away from each other, and the first drive device drives the heating insert 4 and the lower fixture 2 to move away from each other. The operator can remove the movable insert 3 from the lower fixture 2 and take out the formed nozzle 5.

[0039] Specifically, the movable insert 3 is provided with multiple assembly parts 31, which can assemble nozzles 5 in batches. This avoids the method of embedding each nozzle into the fixture one by one in the prior art, greatly reducing assembly time and improving production efficiency. Operators can assemble multiple nozzles 5 on the movable insert 3 at the same time, and then install them as a whole onto the lower fixture 2. This batch operation method saves a lot of manpower and time costs.

[0040] Furthermore, the heating insert 4 is independently set on one side of the lower fixture 2, and its relative position to the lower fixture 2 is controlled by the first driving device. This design allows the heating insert 4 to better heat the nozzle 5, and the heating part 41 can accurately apply heat to the nozzle 5, ensuring that each nozzle 5 can be heated evenly, which is beneficial to improving the quality and consistency of hot bending forming.

[0041] Furthermore, the first bending part 11 of the upper fixture 1 and the second bending part 21 of the lower fixture 2 cooperate with each other to press the heated nozzle 5 under the drive of the second driving device. This precise pressing method can ensure that the nozzle 5 is bent according to the predetermined shape and size, which improves the accuracy of hot bending and reduces the defect rate of the product.

[0042] In addition, the movable insert 3 is detachably connected to the lower fixture 2. When the movable insert 3 is worn or damaged, it can be easily replaced without replacing the entire lower fixture 2. Meanwhile, the heating insert 4 is set independently, which also facilitates its maintenance and repair, reducing the maintenance cost and downtime of the equipment.

[0043] like Figures 1 to 12 As shown, the heating part 41 of this embodiment includes a plurality of heating holes 411 provided on one side of the heating insert 4. The heating holes 411 allow the nozzle 5 to be inserted and heat the bent portion 51 of the nozzle 5.

[0044] Specifically, before the nozzle hot bending forming operation is performed, the first driving device drives the heating insert 4 and the lower fixture 2 to move closer to each other. At this time, the nozzle 5 installed on the assembly part 31 of the movable insert 3 moves with the lower fixture 2 and gradually approaches the heating hole 411 on the heating insert 4.

[0045] When the heating insert 4 and the lower fixture 2 are close to the appropriate position, the bent portion 51 of the nozzle 5 is inserted into the heating hole 411. The heating hole 411 has a heating function (heat can be generated by setting heating elements (such as resistance wires) around the heating hole 411, or by heating the entire heating insert 4; a suitable design can be selected according to actual needs). Heat is transferred from the inner wall of the heating hole 411 to the bent portion 51 of the nozzle 5 inserted therein, causing the temperature of the bent portion 51 to gradually rise to a temperature range suitable for hot bending forming.

[0046] After a certain period of heating, once the bent portion 51 of the nozzle 5 reaches the predetermined temperature, the first driving device drives the heating insert 4 and the lower fixture 2 to move away from each other, and the nozzle 5 exits from the heating hole 411. At this point, the bent portion 51 has good plasticity and can enter the subsequent hot bending forming stage.

[0047] With this design, the heating hole 411 can precisely heat the bent part 51 of the nozzle 5, avoiding affecting other parts of the nozzle 5 that do not need to be heated. This precise heating method can reduce energy waste and ensure that the bent part 51 can reach the ideal hot bending temperature, thereby improving the quality and efficiency of hot bending.

[0048] Furthermore, the bent portion 51 of the nozzle 5 is inserted into the heating hole 411, which can heat the bent portion 51 from all directions, making the bent portion 51 heated more evenly. Compared with some external heating methods, this internal surrounding heating method can reduce temperature differences and ensure that the thermal properties of each part of the bent portion 51 are consistent. This allows for more accurate achievement of the predetermined bending shape in the subsequent hot bending forming process, reducing forming defects caused by uneven heating, such as inconsistent bending angles and uneven surfaces.

[0049] The multiple heating holes 411 can correspond to the multiple assembly parts 31 on the movable insert 3, enabling multiple nozzles 5 to be heated simultaneously. This design matches the batch assembly method of nozzles 5 mentioned above, further improving production efficiency. Each heating hole 411 can be designed according to the size and shape of the nozzle 5 to ensure that the bent part 51 of the nozzle 5 can be smoothly inserted and obtain a good heating effect, with good adaptability and versatility.

[0050] In some embodiments, the heating part 41 further includes a clearance through hole 412 penetrating the top and bottom of the heating insert 4. One side of the clearance through hole 412 communicates with the heating hole 411. The clearance through hole 412 can accommodate the end of the nozzle 5 with the nozzle cap 52, thus preventing overheating that could cause deformation or damage to the nozzle cap 52.

[0051] In other embodiments, when the heating insert 4 needs to heat the nozzle 5 with the nozzle cap 52, a clearance through hole 412 can be provided in the heating insert 4. The clearance through hole 412 penetrates the top and bottom of the heating insert 4, and one side of it communicates with the heating hole 411, providing a dedicated space for the end of the nozzle 5 with the nozzle cap 52. When the first driving device drives the heating insert 4 and the lower fixture 2 to move closer to each other, so that the bent part 51 of the nozzle 5 is inserted into the heating hole 411, the end of the nozzle 5 with the nozzle cap 52 will naturally enter the clearance through hole 412, thus realizing the positioning and placement of the nozzle cap 52.

[0052] The heating hole 411 is mainly used to heat the bent part 51 of the nozzle 5. A large amount of heat will be generated during the heating process. Although the clearance through hole 412 is connected to the heating hole 411, it provides a relatively independent space for the nozzle cap 52. It can isolate the heat transmitted from the heating hole 411 to a certain extent. Since the heat will be hindered by the medium such as air during the transmission process, and the air in the clearance through hole 412 can play a certain role in buffering and heat dissipation, the temperature that the nozzle cap 52 comes into contact with will not be too high, thereby avoiding the deformation and damage of the nozzle cap 52 due to overheating.

[0053] Nozzle cap 52 typically has a specific shape and function and is sensitive to temperature. If the nozzle cap 52 is also affected by high temperature during the heating of the bent part 51 of the nozzle, it is easy to deform, melt or be damaged. This will directly affect the overall performance and quality of the nozzle 5. The design of the avoidance through hole 412 effectively isolates the nozzle cap 52 from the high temperature source, ensuring the integrity and stability of the nozzle cap 52 and guaranteeing the normal use function of the nozzle 5.

[0054] During the production process, overheating can damage the nozzle cap 52, resulting in a large number of defective products and increasing production costs. By setting the avoidance through hole 412, the risk of overheating damage to the nozzle cap 52 is reduced, thereby improving the product yield.

[0055] Different types of nozzles 5 may have nozzle caps 52 of different shapes and sizes. The design of the clearance through hole 412 has a certain degree of versatility and flexibility, and can adapt to a variety of different specifications of nozzle caps 52. As long as the size of the nozzle cap 52 is within the range that the clearance through hole 412 can accommodate, it can be effectively protected during the heating process, which enhances the compatibility of the heating process with different products.

[0056] This design eliminates the need for complex heat insulation measures to protect the nozzle cap 52 when heating the nozzle 5. Operators simply need to insert the nozzle 5 normally into the heating hole 411, and the nozzle cap 52 will automatically enter the avoidance through hole 412, achieving automatic thermal isolation protection, simplifying the operation process, and reducing the difficulty of operation and labor costs.

[0057] In other embodiments, by providing a clearance through hole 412 in the heating insert 4, clearance can be provided for nozzles 5 of different lengths and sizes, and it can also be applied to the bending parts 51 corresponding to other types of nozzles 5, and a suitable design can be selected according to actual needs.

[0058] like Figures 1 to 12As shown, in this embodiment, the first bending portion 11 is provided at the bottom of the upper fixture 1 and bends downward. The bottom of the first bending portion 11 is provided with a first pressing groove 12 corresponding to the nozzle 5. The second bending portion 21 is provided with a second pressing groove 22 corresponding to the first pressing groove 12 and bends downward. When the upper fixture 1 and the lower fixture 2 are closed, the first pressing groove 12 can force the bending portion 51 of the nozzle 5 to bend downward, so that the bending portion 51 of the nozzle 5 abuts against the second pressing groove 22, and the bending portion 51 is restricted between the first pressing groove 12 and the second pressing groove 22 for shaping.

[0059] Specifically, when the first driving device drives the heating insert 4 and the lower fixture 2 to approach each other and completes the heating of the bent part 51 of the nozzle 5, the first driving device drives the heating insert 4 to move away from the lower fixture 2. Then, the second driving device drives the upper fixture 1 and the lower fixture 2 to perform a mold closing action. During the mold closing process, the first bent part 11 at the bottom of the upper fixture 1 moves downward and gradually approaches the second bent part 21 on the lower fixture 2.

[0060] Since the first pressing groove 12 corresponds to the nozzle 5 and the second pressing groove 22 corresponds to the first pressing groove 12, when the first bending part 11 continues to move downward, the first pressing groove 12 will contact the bending part 51 of the nozzle 5 and apply downward pressure to it. At this time, the bending part 51 of the nozzle 5 is in a relatively soft and easily deformable state after heating. Under the pressure of the first pressing groove 12, the bending part 51 will bend further downward. When the mold is closed, the bending part 51 will abut against the second pressing groove 22 and be restricted between the first pressing groove 12 and the second pressing groove 22. In this process, the bending part 51 of the nozzle 5 is squeezed into a shape that matches the shape of the groove under the combined action of the two pressing grooves, thereby achieving shaping.

[0061] The design of the first pressing groove 12 and the second pressing groove 22 provides a precise forming mold for the bending part 51 of the nozzle 5. The shape and size of the two grooves can be precisely processed according to the product design requirements. During the mold closing process, it can ensure that the bending part 51 is bent and shaped according to the predetermined shape and angle, thus ensuring the dimensional accuracy and shape accuracy of the product and improving the consistency of product quality.

[0062] The bending and shaping of the nozzle 5 bending part 51 is completed in one go by the mold closing action of the upper fixture 1 and the lower fixture 2, avoiding the process that may require multiple processing or adjustments in the traditional process. This integrated molding method greatly shortens the production cycle, improves production efficiency, and is suitable for large-scale industrial production.

[0063] After being precisely pressed and shaped by the first pressing groove 12 and the second pressing groove 22, the nozzle 5 has better structural stability at its bent part 51. In subsequent use, it can better maintain its bent shape and is less prone to deformation or springback, thus ensuring the performance stability and reliability of the nozzle 5 in practical applications.

[0064] Precise molding processes reduce scrap rates caused by dimensional deviations or shape defects, lower raw material waste and production costs. At the same time, increased production efficiency further reduces the production cost per unit, enhancing the product's competitiveness in the market.

[0065] This design allows operators to complete the bending and shaping of the nozzle 5 bending part 51 simply by controlling the mold closing action of the upper fixture 1 and the lower fixture 2. The operation is simple and easy to understand, reducing the skill level required of operators and minimizing the impact of human factors on product quality.

[0066] In other embodiments, the second bending portion 21 is further provided with an avoidance groove 23 located at the front end of the second pressing groove 22 and capable of avoiding the nozzle cap 52 at the front end of the nozzle 5.

[0067] In other embodiments, during the bending and shaping process of the nozzle 5 with nozzle cap 52, when the second driving device drives the upper fixture 1 and lower fixture 2 to close the mold, the first bending part 11 at the bottom of the upper fixture 1 moves downward, and the first pressing groove 12 forces the bending part 51 of the nozzle 5 to bend downward, so that it abuts against the second pressing groove 22 and is shaped. At this time, the nozzle cap 52 at the front end of the nozzle 5 will move together with the entire nozzle 5. Since the clearance groove 23 is located at the front end of the second pressing groove 22, when the mold closing action is performed, the nozzle cap 52 will enter the clearance groove 23. The clearance groove 23 provides a space for the nozzle cap 52, avoiding collision or squeezing between the second bending part 21 and the nozzle cap 52 during the mold closing process, ensuring that the mold closing process can proceed smoothly, and also ensuring that the bending part 51 of the nozzle 5 can be accurately squeezed and shaped by the first pressing groove 12 and the second pressing groove 22.

[0068] Without the clearance groove 23, the nozzle cap 52 may interfere with the second bend 21 during mold closing, resulting in unsmooth mold closing and potentially affecting the normal mold closing of the upper fixture 1 and lower fixture 2, thereby affecting the shaping effect of the bend 51 of the nozzle 5. The clearance groove 23 provides clearance space for the nozzle cap 52, eliminating the possibility of such interference, ensuring that the mold closing process can be completed smoothly, and improving production efficiency and product quality stability.

[0069] Different types or specifications of nozzles 5 may have different shapes and sizes of nozzle caps 52. The design of the clearance groove 23 allows the lower fixture 2 to adapt to a variety of nozzles 5 with different nozzle caps 52, which enhances the versatility of the mold, reduces the need to design different molds for different nozzles 5, and lowers the mold development cost.

[0070] If there is interference between the mold and the product during the production process, a lot of time needs to be spent on debugging and adjustment. The setting of the avoidance groove 23 avoids such interference by design, reduces the debugging time before production, and enables the production line to be put into normal production more quickly, thus improving the overall production efficiency.

[0071] like Figures 1 to 12 As shown, in this embodiment, a sliding component is provided between the second bending portion 21 and the lower fixture 2, which allows the second bending portion 21 to slide up and down along the vertical direction of the lower fixture 2. By providing the sliding component, when the heating insert 4 needs to heat the nozzle 5, and during the process of the first driving device driving the heating insert 4 and the lower fixture 2 to move closer to each other, the second bending portion 21 can slide down along the vertical direction of the lower fixture 2 under the action of the sliding component, thereby making way for the heating insert 4, avoiding the second bending portion 21 from obstructing the heating insert 4, and ensuring that it can move to a position close to the lower fixture 2; when the heating process is completed, and during the process of the first driving device driving the heating insert 4 and the lower fixture 2 to move away from each other, the second bending portion 21 can slide up along the vertical direction of the lower fixture 2 under the action of the sliding component, and the second bending portion 21 is thus reset to the initial position, ready to cooperate with the first bending portion 11 to realize the bending operation of the nozzle 5.

[0072] Specifically, during the heating process of nozzle 5, the first drive device is activated, driving the heating insert 4 and the lower fixture 2 to move closer together. Since the heating insert 4 needs to move to a position close to the lower fixture 2 in order to effectively heat the nozzle 5, the position of the second bending part 21 in the initial state may obstruct the movement path of the heating insert 4. At this time, the sliding component plays a role, allowing the second bending part 21 to slide downward along the vertical direction of the lower fixture 2 as the heating insert 4 and the lower fixture 2 move closer together, thereby making room for the heating insert 4 so that it can move smoothly to the predetermined heating position.

[0073] After the heating process is completed, the first driving device drives the heating insert 4 and the lower fixture 2 to move away from each other. At this time, the second bending part 21 slides upward along the vertical direction of the lower fixture 2 under the action of the sliding component, and finally returns to the initial position. After returning to the initial position, the second bending part 21 can cooperate with the first bending part 11 to perform a bending operation on the heated nozzle 5.

[0074] By setting a sliding component to allow the second bending part 21 to give way to the heating insert 4, it is ensured that the heating insert 4 can be accurately moved to a position close to the lower fixture 2, thereby enabling precise heating of the nozzle 5.

[0075] During the process of the heating insert 4 and the lower fixture 2 approaching each other, if the second bending part 21 cannot make way, the heating insert 4 and the second bending part 21 may collide, causing damage to the components. The sliding component can avoid such interference, protect the heating insert 4, the second bending part 21 and other equipment components, and extend the service life of the equipment.

[0076] This design enables the equipment to both heat the nozzle 5 and bend it. The second bending part 21 makes way during heating and resets after heating to perform bending, thus achieving an orderly connection between the heating and bending processes and improving the equipment's versatility and the degree of automation in production.

[0077] By coordinating the positional changes of the second bending part 21 through the sliding component, the entire hot bending forming process is optimized, reducing manual intervention and process changeover time, improving production efficiency, and reducing production costs.

[0078] Furthermore, this design makes the nozzle hot bending forming structure more compact.

[0079] like Figures 1 to 12 As shown, the sliding assembly of this embodiment includes two first sliding protrusions 24 located on one side of the lower fixture 2 and extending outward, a sliding groove 25 located inside each of the first sliding protrusions 24, and second sliding protrusions 26 located on both sides of the second bent portion 21 and corresponding one-to-one with the sliding grooves 25.

[0080] Specifically, during the heating process of nozzle 5, the first drive device is activated, driving the heating insert 4 and the lower fixture 2 to move closer together. Since the second sliding protrusions 26 on both sides of the second bent portion 21 are embedded in the sliding grooves 25 inside the first sliding protrusion 24, under the pushing force applied by the lower fixture 2 (or by their own gravity, depending on the actual setup of the equipment), the second sliding protrusions 26 will slide downward along the sliding grooves 25. Because the sliding grooves 25 are set inside the first sliding protrusion 24 and limit the sliding direction, the second bent portion 21 will slide downward along the vertical direction of the lower fixture 2, thereby making room for the heating insert 4 so that it can move smoothly to the appropriate position for heating nozzle 5.

[0081] After the heating process is completed, the first driving device drives the heating insert 4 and the lower fixture 2 to move away from each other. At this time, the external force acting on the second bending part 21 disappears. Under the action of some auxiliary reset devices (such as elastic elements such as springs, or some guide components, etc.), the second sliding protrusion 26 will slide upward along the sliding groove 25, driving the second bending part 21 to slide upward along the vertical direction of the lower fixture 2, and finally reset to the initial position, so that the heated nozzle 5 can be bent in the subsequent process.

[0082] The sliding groove 25 provides a precise sliding path for the second sliding protrusion 26, enabling the second bending part 21 to maintain a stable and accurate movement trajectory during the up-and-down sliding process. This precise guidance ensures that the second bending part 21 will not deviate or wobble during the repositioning and resetting process, thereby ensuring that the heating insert 4 can smoothly reach the heating position and that the second bending part 21 can accurately reset to perform the bending operation, thus improving the stability and reliability of the equipment operation.

[0083] The structure of this sliding component is relatively simple, consisting of a first sliding protrusion 24, a sliding groove 25, and a second sliding protrusion 26. It does not have a complex mechanical structure or too many parts, which makes it more convenient and faster to manufacture, install, and maintain, reducing the manufacturing cost and maintenance difficulty of the equipment.

[0084] The cooperation between the sliding groove 25 and the second sliding protrusion 26 can achieve a relatively smooth sliding effect.

[0085] Because the sliding assembly ensures that the second bending part 21 can quickly and accurately reposition and reset, the conversion time between heating and bending processes is reduced, improving the efficiency of the entire hot bending forming production process. The equipment can complete the heating and bending operation of the nozzle 5 more quickly, increasing the product output per unit time.

[0086] like Figures 1 to 12 As shown, the nozzle hot bending forming structure of this embodiment also includes a guide block 6 located at the bottom of the second bending part 21. The guide block 6 is provided with a guide slope 61. When the lower fixture 2 and the heating insert 4 are relatively close, the lower fixture 2 drives the second bending part 21 to move towards the heating insert 4. At the same time, during the movement, the second bending part 21 can slide down along the guide slope 61 on the guide block 6 located at its bottom. That is, as the lower fixture 2 continues to approach the heating insert 4, the second bending part 21 will be guided by the guide slope 61 on the guide block 6 and gradually move down. At the same time, the second bending part 21 moves down along the vertical direction of the lower fixture 2 through the cooperation of the second sliding protrusion 26 on both sides with the sliding groove 25 on the inner side of the first sliding protrusion 24, thereby making room for the heating insert 4 so that it can smoothly reach the position to heat the nozzle 5.

[0087] After the heating process is completed, the first driving device drives the heating insert 4 and the lower fixture 2 to move away from each other. At this time, the lower fixture 2 pulls the second bending part 21 away from the heating insert 4 through the first sliding protrusion 24. At the same time, the second bending part 21 can gradually slide upward along the guide slope 61 on the guide block 6 at its bottom. Meanwhile, the second bending part 21 moves upward along the vertical direction of the lower fixture 2 through the cooperation of the second sliding protrusion 26 on both sides with the sliding groove 25 on the inner side of the first sliding protrusion 24. Finally, the second bending part 21 returns to the initial position so that the heated nozzle 5 can be bent in the subsequent operation.

[0088] Specifically, when the heating insert 4 is near the nozzle 5 for heating, the second bend 21 can slide down along the guide slope 61 to make room, avoiding interference between the second bend 21 and the heating insert 4, ensuring that the heating insert 4 can reach the heating position smoothly, and ensuring the smooth progress of the heating process.

[0089] Furthermore, through the cooperation of the guide slope 61 and the sliding protrusion and groove, the second bending part 21 can be accurately reset to the initial position after heating is completed. This allows the second bending part 21 to accurately apply force to the nozzle 5 when bending the heated nozzle 5 in the future, ensuring the accuracy and stability of the bending operation.

[0090] This automatic space-clearing and resetting design reduces the need for manual intervention, enabling the heating and bending processes to be carried out continuously and efficiently, thus improving the overall production efficiency of nozzle hot bending forming.

[0091] The second bent part 21 is moved and reset by using the guide slope 61 of the guide block 6 and the cooperation between the sliding protrusion and the groove. The structure is relatively simple, which reduces the complexity and cost of the equipment, while also improving the reliability and stability of the equipment and reducing the probability of failure.

[0092] like Figures 1 to 12 As shown, the lower fixture 2 in this embodiment is provided with a positioning groove 27 that enables the movable insert 3 to be positioned and assembled on the lower fixture 2.

[0093] Specifically, during the assembly of the nozzle hot bending forming equipment, the movable insert 3 needs to be accurately installed on the lower fixture 2 to ensure the accuracy and stability of the entire hot bending forming process. The presence of the positioning groove 27 provides a clear positional reference for the installation of the movable insert 3.

[0094] During installation, the operator aligns the movable insert 3 with the lower fixture 2, ensuring that the adapter structure on the movable insert 3 is aligned with the positioning groove 27. Then, the movable insert 3 is placed downwards, and the adapter structure is embedded in the positioning groove 27. The shape and size of the positioning groove 27 are precisely designed to tightly contain the adapter structure. Through this mechanical fit, the movement and rotation of the movable insert 3 in the horizontal direction (X-axis and Y-axis directions) are restricted, ensuring that it can only be in the position defined by the positioning groove 27, thereby achieving the positioning and assembly of the movable insert 3 on the lower fixture 2.

[0095] The hot bending forming of nozzles requires extremely high positional accuracy for each component. The accurate installation of the movable insert 3 directly affects the forming quality of the nozzle. The positioning groove 27 ensures that the position of the movable insert 3 is consistent each time it is installed, so that the relative position between the movable insert 3 and other components (such as the heating insert 4) remains accurate. This ensures that the nozzle can be bent according to the preset size and shape during the hot bending forming process, thereby improving the forming accuracy and quality stability of the product.

[0096] The positioning groove 27 provides a standardized positioning method, reduces the impact of human factors on assembly accuracy, lowers the possibility of assembly errors, and improves the overall assembly quality of the equipment.

[0097] During the hot bending process, the movable insert 3 is subjected to forces from multiple directions, such as the nozzle and the heating insert. The close fit between the positioning groove 27 and the adapting structure on the movable insert 3 can effectively resist these external forces and prevent the movable insert 3 from shifting or shaking during operation. This stability ensures the smooth progress of the hot bending process and reduces the product defect rate caused by the displacement of the movable insert 3.

[0098] When the movable insert 3 is worn, damaged, or needs adjustment, the positioning groove 27 makes it easier to disassemble and reinstall the movable insert 3. The operator can easily remove the movable insert 3 from the lower fixture 2 for repair or replacement, and then accurately install it back according to the indication of the positioning groove 27, which reduces equipment downtime and improves production efficiency.

[0099] like Figures 1 to 12 As shown, the assembly part 31 in this embodiment includes an assembly hole that can be inserted into the rear end of the corresponding nozzle 5.

[0100] In the entire hot bending forming process, the nozzle 5 needs to be precisely positioned and operated. The assembly hole on the assembly part 31 is precisely designed according to the size, shape and other characteristics of the rear end of the nozzle 5. When assembling, the operator aligns the rear end of the nozzle 5 with the corresponding assembly hole on the assembly part 31, and then applies a certain external force to insert the rear end of the nozzle 5 into the assembly hole.

[0101] The assembly hole and the rear end of the nozzle 5 are usually connected by an interference fit, clearance fit, or transition fit. If it is an interference fit, the size of the assembly hole is slightly smaller than the size of the rear end of the nozzle 5. A certain pressure is required when inserting it, and the tight connection is achieved by relying on the elastic deformation of the material to ensure that the nozzle 5 will not easily come off during subsequent hot bending and other operations. If it is a clearance fit, the size of the assembly hole is slightly larger than the size of the rear end of the nozzle 5. Insertion is relatively easy, but other auxiliary fixing methods (such as clips) may be used to ensure the stability of the connection. The transition fit is between the two, which can ensure a certain connection strength and is relatively easy to insert. Through this insertion method, the nozzle 5 is initially positioned and fixed on the assembly part 31, laying the foundation for subsequent hot bending and other operations.

[0102] The mounting hole provides a precise positioning reference for the nozzle 5, so that the position of each nozzle 5 on the mounting part 31 is fixed and consistent. In this way, during the hot bending operation, the heating insert and other components can accurately act on the specific position of the nozzle 5, ensuring that the nozzle 5 bends according to the preset angle and shape, improving the accuracy and consistency of hot bending, and reducing the product defect rate.

[0103] For situations where multiple nozzles 5 need to be hot-bent simultaneously, the assembly hole can ensure that the relative position between each nozzle 5 is accurate. This is beneficial for mass production, ensuring that the size and shape of multiple nozzles 5 after hot bending are highly consistent, and improving production efficiency and product quality stability.

[0104] The assembly is performed by plugging in, which is simple and convenient. It does not require complicated tools and processes. Operators only need to insert the rear end of nozzle 5 into the assembly hole to complete the assembly, which greatly improves the assembly efficiency and shortens the production cycle.

[0105] When nozzle 5 is damaged or needs adjustment, it can be easily replaced or repaired by simply pulling it out of the mounting hole. This easy disassembly and installation feature reduces the difficulty and cost of equipment maintenance and improves the maintainability of the equipment.

[0106] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A nozzle hot bending forming structure, characterized in that: The assembly includes an upper fixture (1), a lower fixture (2), a movable insert (3), a heating insert (4), a first driving device, and a second driving device. The movable insert (3) is detachably connected to the lower fixture (2). The upper fixture (1) is located above the movable insert (3). The movable insert (3) has multiple mounting parts (31) for mounting nozzles (5). The heating insert (4) is located on one side of the lower fixture (2) and has a heating part (41). The first driving device can drive the heating insert (4) and the lower fixture (2) to move away from or closer to each other. When the device drives the lower fixture (2) and the heating insert (4) to approach each other, the heating part (41) can heat the nozzle (5); the upper fixture (1) is provided with a first bending part (11), and the lower fixture (2) is provided with a second bending part (21). The second driving device can drive the upper fixture (1) and the lower fixture (2) to move away from each other or move closer to each other. When the second driving device drives the upper fixture (1) and the lower fixture (2) to close the mold, the first bending part (11) and the second bending part (21) can press the heated nozzle (5) to make the nozzle (5) bend.

2. The nozzle hot bending forming structure according to claim 1, characterized in that: The heating part (41) includes a plurality of heating holes (411) provided on one side of the heating insert (4). The heating holes (411) allow the nozzle (5) to be inserted and heat the bent part (51) of the nozzle (5).

3. The nozzle hot bending forming structure according to claim 2, characterized in that: The heating part (41) also includes a clearance through hole (412) penetrating the top and bottom of the heating insert (4), one side of the clearance through hole (412) communicating with the heating hole (411), and the clearance through hole (412) being able to accommodate the end of the nozzle (5) having a nozzle cap (52).

4. The nozzle hot bending forming structure according to claim 1, characterized in that: The first bending part (11) is located at the bottom of the upper fixture (1) and bends downward. The bottom of the first bending part (11) is provided with a first pressing groove (12) corresponding to the nozzle (5). The second bending part (21) is provided with a second pressing groove (22) corresponding to the first pressing groove (12) and bending downward. When the upper fixture (1) and the lower fixture (2) are closed, the first pressing groove (12) can force the bending part (51) of the nozzle (5) to bend downward so that the bending part (51) of the nozzle (5) abuts against the second pressing groove (22) and the bending part (51) is restricted between the first pressing groove (12) and the second pressing groove (22) for shaping.

5. The nozzle hot bending forming structure according to claim 4, characterized in that: The second bending portion (21) is also provided with a clearance groove (23) located at the front end of the second pressing groove (22) and capable of avoiding the nozzle cap (52) at the front end of the nozzle (5).

6. The nozzle hot bending forming structure according to claim 1, characterized in that: A sliding component is provided between the second bending part (21) and the lower fixture (2) to allow the second bending part (21) to slide up and down along the vertical direction of the lower fixture (2).

7. The nozzle hot bending forming structure according to claim 6, characterized in that: The sliding assembly includes two first sliding protrusions (24) located on one side of the lower fixture (2) and extending outward, a sliding groove (25) located inside each of the first sliding protrusions (24), and second sliding protrusions (26) located on both sides of the second bend (21) and corresponding one-to-one with the sliding grooves (25).

8. The nozzle hot bending forming structure according to claim 6, characterized in that: The nozzle hot bending forming structure also includes a guide block (6) located at the bottom of the second bending part (21). The guide block (6) is provided with a guide slope (61). When the lower fixture (2) and the heating insert (4) are relatively close, the second bending part (21) can slide downward relative to each other along the guide slope (61) so that the second bending part (21) moves downward along the vertical direction of the lower fixture (2) through the sliding assembly.

9. The nozzle hot bending forming structure according to claim 1, characterized in that: The lower fixture (2) is provided with a positioning groove (27) that enables the movable insert (3) to be positioned and assembled on the lower fixture (2).

10. The nozzle hot bending forming structure according to claim 1, characterized in that: The assembly part (31) includes an assembly hole that can be inserted into the rear end of the corresponding nozzle (5).

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