Mould transfer device and bicycle frame forming apparatus

Abstract

The utility model discloses a mould transmission device and bicycle frame forming equipment relates to bicycle processing technical field, wherein, mould transmission device includes first transmission section, second transmission section and reversing transmission section, and first transmission section is parallel with second transmission section and interval setting, and reversing transmission section connects two ends of first transmission section and second transmission section respectively, first transmission section is equipped with cleaning assembly, and cleaning assembly can move along the extension direction of first transmission section, and cleaning assembly has high pressure air jet head, and high pressure air jet head sets up towards first transmission section, in the technical scheme provided by the utility model, cleaning assembly blows away the impurity and pollutant in cavity with high pressure air, thereby guaranteeing the neat and clean of cavity, so that the next time forming's frame product will not appear flaw, avoids white spot, interlayer delamination and other defects caused by impurity residue, and also shortens the beat, improves equipment utilization, realizes continuous, clean, efficient assembly line operation.

Description

Technical Field

[0001] This utility model relates to the field of bicycle processing technology, and in particular to a mold transfer device and a bicycle frame forming equipment. Background Technology

[0002] Carbon fiber bicycle frame molding involves sequentially stacking hundreds of pre-impregnated carbon fabric sheets, precisely cut according to the direction of stress, into a metal mold. An inflatable air bladder or a disposable EPS core mold is installed inside. After the mold is closed, it is sent to a furnace. In the high-temperature and high-pressure environment of the furnace, the resin melts and impregnates the fiber, and the air bladder expands and compacts simultaneously to remove air bubbles. After curing for 2-3 hours, it is cooled and demolded. Then, it undergoes X-ray flaw detection, strength testing, and fine polishing to finally obtain a high-rigidity and lightweight overall frame.

[0003] After the chassis frame is formed, the mold needs to be opened, the formed chassis frame is removed, and carbon fiber is placed in the mold cavity to form the second chassis frame. This process is repeated to form an assembly line operation. In this process, a mold transfer device is usually used to transfer the mold. The steps are generally as follows: the mold comes out of the furnace with the finished product, the mold is opened, the chassis frame is removed, a new carbon fiber is placed, the mold is closed, and then it is sent back to the furnace.

[0004] However, since carbon fiber powder from the previous molding may remain in the cavity, as well as dust from the environment that may enter the mold cavity after the mold is opened, if the cavity cannot be kept clean, the next molded product will have defects. Utility Model Content

[0005] The main purpose of this utility model is to provide a mold transfer device and a bicycle frame forming equipment, which aims to provide a mold transfer device that can clean the mold during the mold transfer process.

[0006] To achieve the above objectives, the present invention proposes a mold transmission device for bicycle frame mold transmission, comprising a first transmission section, a second transmission section, and a reversing transmission section. The first transmission section and the second transmission section are parallel and spaced apart, and the reversing transmission section is connected to both ends of the first transmission section and the second transmission section respectively. The first transmission segment is equipped with a cleaning component that is movable along the extension direction of the first transmission segment. The cleaning component has a high-pressure jet head that is positioned toward the first transmission segment.

[0007] In one embodiment, the cleaning assembly further includes a gantry, the gantry comprising two uprights and a crossbeam connecting the two uprights, the high-pressure jet head being disposed on the crossbeam; The first transmission section has guide rails on both sides, and the two uprights are slidably mounted on the guide rails.

[0008] In one embodiment, the cleaning assembly further includes a drive mechanism comprising a bracket and a drive wheel. The bracket is disposed on the side of the stand facing the first transmission section, and the drive wheel is rotatably disposed on the bracket and abuts against the first transmission section.

[0009] In one embodiment, the first transmission section includes a first base and a plurality of first transmission rollers, the plurality of first transmission rollers being rotatably disposed on the first base and the plurality of first transmission rollers being evenly spaced apart; The mold transfer device also includes a cooling component, which is located on the first base.

[0010] In one embodiment, the cooling assembly has a plurality of air outlets, which are arranged toward the first transfer roller.

[0011] In one embodiment, the second transmission section includes a second base and a second transmission roller, the second base being arranged parallel to the first base, and the second transmission roller rotating in the opposite direction to the first transmission roller.

[0012] In one embodiment, the first transmission section further includes a third transmission roller, the second transmission roller is disposed at one end of the first base away from the reversing transmission section, and the third transmission roller is arranged perpendicularly to the first transmission roller.

[0013] In one embodiment, the reversing transmission section includes a reversing base and a plurality of reversing rollers, the plurality of reversing rollers being rotatably disposed on the reversing base, and the included angles of the plurality of reversing rollers being equal.

[0014] In one embodiment, the reversing roller has a first end face, a second end face, and a side face connecting the first end face and the second end face, wherein the diameter of the first end face is smaller than the diameter of the second end face.

[0015] This utility model also proposes a bicycle frame forming device, including the mold transfer device described above.

[0016] This utility model proposes a mold transfer device and a bicycle frame forming equipment. The mold transfer device includes a first transfer section, a second transfer section, and a reversing transfer section. The first and second transfer sections are parallel and spaced apart. The reversing transfer section connects the two ends of the first and second transfer sections respectively. The first, second, and reversing transfer sections together form a U-shaped transfer line. The first transfer section is used to connect the mold exit position of the furnace platform, and the second transfer section is used to connect the mold entry position of the furnace platform. The mold opening process is completed on the first transfer section. The first transfer section is equipped with a cleaning component, which can use a high-pressure air jet to clean the cavity of the mold after mold opening on the first transfer section. High-pressure air blows away impurities and contaminants in the cavity, thereby ensuring that the cavity is clean and tidy. This ensures that the next formed bicycle frame product will not have defects, avoiding defects such as white spots and interlayer delamination caused by impurities, shortening the cycle time, improving equipment utilization, and realizing continuous, clean, and efficient assembly line operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of an embodiment of the mold transfer device provided by this utility model; Figure 2 for Figure 1 Schematic diagram showing the location of the intermediate mold transfer device and the furnace platform; Figure 3 for Figure 1 Exploded view of the intermediate mold transfer device; Figure 4 This is a schematic diagram of the cleaning component. Figure 5 for Figure 4 A magnified view of a section at point A in the middle; Figure 6 This is a schematic diagram of the reversing roller.

[0019] Explanation of icon numbers: 100. Mold transfer device; 1. First transfer section; 11. First base; 111. Guide rail; 12. First transfer roller; 13. Third transfer roller; 2. Second transfer section; 21. Second base; 22. Second transfer roller; 3. Reversing transfer section; 31. Reversing base; 32. Reversing roller; 321. First end face; 322. Second end face; 323. Side; 4. Cleaning assembly; 41. High-pressure jet nozzle; 411. Sliding seat; 42. Gantry frame; 421. Vertical frame; 422. Crossbeam; 43. Support; 44. Drive wheel; 5. Cooling assembly; 51. Air outlet.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] Carbon fiber bicycle frame molding involves sequentially stacking hundreds of pre-impregnated carbon fiber sheets, precisely cut according to the direction of stress, into a metal mold. An inflatable air bladder or a disposable EPS core mold is included. After mold closing, the mold is sent to a furnace. In the high-temperature, high-pressure environment of the furnace, resin melts and impregnates the fibers, while the air bladder expands and compacts to remove air bubbles. After curing for 2-3 hours, the frame is cooled and demolded. It then undergoes X-ray inspection, strength testing, and fine polishing to achieve a high-rigidity and lightweight overall frame. After the frame is formed, the mold needs to be opened, the formed frame removed, and carbon fiber sheets placed in the mold cavity to form the next frame. This process is repeated, forming an assembly line operation. During this process, a mold transfer device 100 is typically used to transfer the mold. The steps are generally as follows: the mold exits the furnace with the finished product, the mold is opened, the frame is removed, a new carbon fiber sheet is placed, the mold is closed, and then it is sent back to the furnace.

[0025] However, since carbon fiber powder from the previous molding may remain in the cavity, as well as dust from the environment that may enter the mold cavity after the mold is opened, if the cavity cannot be kept clean, the next molded product will have defects.

[0026] To address the aforementioned problems, this utility model proposes a mold transfer device 100, which aims to provide a mold transfer device 100 capable of cleaning the mold during the mold transfer process. Figures 1 to 6 This is a schematic diagram of one embodiment of the mold transfer device 100 of this utility model.

[0027] Please refer to Figures 1 to 6 This utility model proposes a mold transmission device 100 for bicycle frame mold transmission, including a first transmission section 1, a second transmission section 2, and a reversing transmission section 3. The first transmission section 1 and the second transmission section 2 are parallel and spaced apart. The reversing transmission section 3 connects the two ends of the first transmission section 1 and the second transmission section 2 respectively. The first transmission section 1 is provided with a cleaning component 4, which can move along the extension direction of the first transmission section 1. The cleaning component 4 has a high-pressure jet head 41, which is positioned towards the first transmission section 1.

[0028] The present invention proposes a mold transfer device 100 and a bicycle frame forming equipment. The mold transfer device 100 includes a first transfer section 1, a second transfer section 2, and a reversing transfer section 3. The first transfer section 1 and the second transfer section 2 are parallel and spaced apart. The reversing transfer section 3 connects the two ends of the first transfer section 1 and the second transfer section 2 respectively. The first transfer section 1, the second transfer section 2, and the reversing transfer section 3 together form a U-shaped transfer line. The first transfer section 1 is used to connect the mold exit position of the furnace platform, and the second transfer section 2 is used to connect the mold entry position of the furnace platform. The mold opening process is completed on the first transfer section 1. The first transfer section 1 is equipped with a cleaning component 4, which can use a high-pressure air jet 41 to clean the cavity of the mold after mold opening on the first transfer section 1. The high-pressure air blows away impurities and contaminants in the cavity, thereby ensuring that the cavity is clean and tidy. This ensures that the next formed bicycle frame product will not have defects, avoiding defects such as white spots and interlayer delamination caused by impurities, shortening the cycle time, improving equipment utilization, and realizing continuous, clean, and efficient assembly line operation.

[0029] In the technical solution of this application, the cleaning component 4 is mounted on the first transmission section 1 via a gantry frame 42. The gantry frame 42 includes two uprights 421 and a crossbeam 422 connecting the two uprights 421. The gantry frame 42 of the cleaning component 4 forms a rolling pair with the guide rails 111 on both sides of the first transmission section 1 through the slider structure on the two uprights 421. The gantry frame 42 can be driven manually or automatically. In one embodiment of this application, the uprights 421 are provided with drive wheels 44 facing the first base 11. The drive wheels 44 are rotatably mounted on the uprights 421 via a bracket 43. On 21, the drive wheel 44 is driven by a servo motor via a synchronous belt or rack and pinion, enabling the gantry 42 to move back and forth along the conveying direction at the same speed or at a different speed as the mold. Since the high-pressure jet head 41 moves synchronously with the mold above it, the spray distance and angle remain constant, and the cleaning time can be extended to 2-4 times the stroke length. This not only thoroughly blows away the carbon fiber powder and dust remaining in the dead corners of the cavity point by point and seam by seam, but also avoids the mold waiting at a fixed station, reducing the cycle time gap. This allows for a seamless connection between "sweeping while moving" and "continuous transport", further improving the cleanliness and production capacity of the production line.

[0030] Furthermore, the high-pressure jet head 41 is movably mounted on the gantry frame 42 via the sliding seat 411. The crossbeam 422 of the gantry frame 42 is provided with a slide rail (not shown in the figure) on the side facing the mold. The sliding seat 411 is provided with pulleys. Through the cooperation of the pulleys and the slide rails, the high-pressure jet head 41 can move along the length of the crossbeam 422, thereby ensuring that the high-pressure gas covers all areas and dead corners of the mold, further improving the reliability and thoroughness of soot blowing.

[0031] In another embodiment of this application, high-pressure jet nozzles 41 are provided at both ends of the crossbeam 422. The two high-pressure jet nozzles 41 are respectively arranged on both sides of the mold, so as to cover a larger blowing area and ensure the cleanliness of the mold.

[0032] Understandably, the surface temperature of the mold after firing remains as high as 120–150℃. Manually opening the mold directly would result in burns and cause the resin to easily become sticky again. This device incorporates an air-cooling component 5 on the first base 11. For details, please refer to further documentation. Figure 2 By using multiple air outlets 51 to force convection cooling of the mold on the first transfer roller 12, the mold can be quickly cooled to below 50°C within 3 to 5 minutes. This not only protects personnel safety and shortens the high-temperature waiting time, but also allows the resin to fully set and avoid secondary deformation, thereby ensuring stable mold closing temperature for the next mold and shortening the molding cycle by more than 15%.

[0033] The second transmission section 2 includes a second base 21 and a second transmission roller 22. The second base 21 is arranged parallel to the first base 11. The second transmission roller 22 rotates in the opposite direction to the first transmission roller 12. By setting the direction of rotation of the second transmission roller 22 to be opposite to that of the first transmission roller 12, the two parallel sections form a closed-loop return flow of "one in and one out". After the mold completes the mold opening and cleaning in the first section, the empty mold is directly sent back to the furnace entrance by the second section rotating in the opposite direction. No additional transverse movement mechanism is required, which reduces the footprint and cycle time gap, realizes the compact layout of the U-shaped production line, and improves the space utilization and continuous operation efficiency.

[0034] After the formed products and molds exit the furnace, they are received by the third transfer roller 13. The third transfer roller 13 is perpendicular to the first transfer roller 12 and is located at the front end of the first base 11. It can directly receive the molds that slide longitudinally out of the furnace and send them 90° into the transverse conveying path of the first transfer roller 12. This eliminates the need for manual handling or additional mechanisms for transfer, shortens the furnace exit distance, and achieves seamless connection of mold "longitudinal entry and transverse movement", improving cycle efficiency and production line compactness. During reversal, all reversing rollers 32 are arranged at the same included angle, which can form a continuous constant speed turning support surface at the U-shaped bend. The mold is subjected to uniform force and no jamming when turning, which reduces impact and wear, and ensures smooth transmission and accurate positioning, thereby improving reversal reliability and extending equipment life.

[0035] In one embodiment of this application, the diameter of the first end face 321 of the reversing roller 32 is smaller than the diameter of the second end face 322, and the roller is generally frustum-shaped. For details, please refer to further reading. Figure 6The reversing roller 32 is designed as a frustum, with its generatrix and axis forming a fixed cone angle. When the mold moves along the U-shaped curve, the outer rail radius is large and the inner rail radius is small. The difference in circumference at different diameters of the frustum roller provides "self-compensation" for the difference in linear velocity between the inner and outer rails of the mold. That is, the outer edge contacts the large diameter and has a high linear velocity, while the inner edge contacts the small diameter and has a low linear velocity. The mold can turn synchronously without relative sliding, avoiding dragging, edge chipping, and local wear caused by traditional cylindrical rollers. At the same time, the cone surface of the frustum roller also generates a centripetal force on the mold, automatically centering and positioning it to prevent deviation and vibration. This protects the surface quality of the mold, reduces the additional load on the roller and guide rail 111, extends the life of the entire transmission mechanism, and ensures smooth reversing at high speeds.

[0036] This utility model also proposes a bicycle frame forming device, which includes a mold transfer device 100. The specific structure of the mold transfer device 100 is as described in the above embodiments. Since this bicycle frame forming device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0037] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A mold transfer device, used for transferring bicycle frame molds, characterized in that, It includes a first transmission segment, a second transmission segment, and a reversing transmission segment. The first transmission segment and the second transmission segment are parallel and spaced apart. The reversing transmission segment connects the two ends of the first transmission segment and the second transmission segment, respectively. The first transmission segment is equipped with a cleaning component that is movable along the extension direction of the first transmission segment. The cleaning component has a high-pressure jet head that is positioned toward the first transmission segment.

2. The mold transfer device as described in claim 1, characterized in that, The cleaning assembly also includes a gantry frame, which includes two uprights and a crossbeam connecting the two uprights, with the high-pressure jet head disposed on the crossbeam; The first transmission section has guide rails on both sides, and the two uprights are slidably mounted on the guide rails.

3. The mold transfer device as described in claim 2, characterized in that, The cleaning assembly also includes a drive mechanism, which includes a bracket and a drive wheel. The bracket is located on the side of the stand facing the first transmission section, and the drive wheel is rotatably mounted on the bracket and abuts against the first transmission section.

4. The mold transfer device as described in any one of claims 1 to 3, characterized in that, The first transmission section includes a first base and a plurality of first transmission rollers, the plurality of first transmission rollers being rotatably mounted on the first base and the plurality of first transmission rollers being evenly spaced apart; The mold transfer device also includes a cooling component, which is located on the first base.

5. The mold transfer device as described in claim 4, characterized in that, The cooling assembly has multiple air outlets, which are arranged toward the first transfer roller.

6. The mold transfer device as described in claim 4, characterized in that, The second transmission section includes a second base and a second transmission roller. The second base is arranged parallel to the first base, and the second transmission roller rotates in the opposite direction to the first transmission roller.

7. The mold transfer device as described in claim 6, characterized in that, The first transmission section further includes a third transmission roller, which is located at one end of the first base away from the reversing transmission section, and the second transmission roller is arranged perpendicularly to the first transmission roller.

8. The mold transfer device as described in any one of claims 1 to 3, characterized in that, The reversing transmission section includes a reversing base and multiple reversing rollers, the multiple reversing rollers being rotatably mounted on the reversing base, and the included angles of the multiple reversing rollers being equal.

9. The mold transfer device as described in claim 8, characterized in that, The reversing roller has a first end face, a second end face, and a side face connecting the first end face and the second end face, wherein the diameter of the first end face is smaller than the diameter of the second end face.

10. A bicycle frame forming device, characterized in that, Includes the mold transfer device as described in any one of claims 1 to 9.

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