Adjustable size wiper blade mold and its molding process

Abstract

The application belongs to the technical field of industrial molds and discloses a size-adjustable windshield wiper mold and a molding process thereof, which comprises an upper mold assembly, a lower mold assembly and a lubricating assembly. The upper mold assembly comprises a top base and a plurality of stamping parts connected to the bottom of the top base. The lower mold assembly comprises a bottom base, a partition connected to the top of the bottom base, a support table connected to the top of the partition, a plurality of molding parts placed on the top of the support table and a plurality of fixing parts slidably connected to the support table. The lubricating assembly comprises a plurality of lubricating mechanisms and a plurality of pressing mechanisms. The number of the lubricating mechanisms, the number of the pressing mechanisms and the number of the molding parts are the same. The pressing mechanisms are all installed on the bottom of the top base, and each lubricating mechanism is in one-to-one correspondence with a different molding part. Through cooperation with the pressing mechanisms, the lubricating oil in the lubricating mechanism can be transferred to reduce the wear degree of the galvanized layer on the surface of the raw material. By coating the lubricating oil on the oil storage part that rubs against the raw material, the need for coating the lubricating oil on each part on the outside of the raw material can be avoided.

Description

Technical Field

[0001] This invention belongs to the field of industrial mold technology, specifically relating to a size-adjustable windshield wiper mold and its molding process. Background Technology

[0002] Windshield wipers are automotive devices used to wipe away rainwater or other liquids. They mainly consist of wiper blades, wiper arms (including the short wiper arm), wiper arm pivot, wiper linkage, wiper crank, and wiper motor. Each part performs an important function, ensuring that the wipers can effectively remove rainwater and dust from the windshield and guarantee driving safety. Some parts of the wiper system require molds during manufacturing. For example, stamping molds can be used to manufacture metal parts such as the wiper arm and wiper linkage to ensure the shape and dimensional accuracy of these components.

[0003] When manufacturing wiper components (such as wiper arms), a conveyor belt or other transport device can be used to transport the raw material. After the material is transferred between the upper and lower dies, the punching and grooving operations are completed by closing the upper and lower dies. To improve the corrosion resistance of the wiper components, the raw material can be galvanized before stamping to form a galvanized layer on its outer surface. To prevent the galvanized layer from being damaged by friction with the structures inside the upper and lower dies or other structures, the raw material can be briefly immersed in a lubricating oil bath before stamping. While this method can protect the galvanized layer, it can increase the difficulty of cleaning the finished wiper components later. Furthermore, a significant amount of lubricating oil is likely to fall onto the lower die or flow onto the ground under the influence of gravity, further increasing the difficulty of subsequent cleaning. This also leads to a higher consumption of lubricating oil and makes it more difficult to reuse it. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to provide a size-adjustable windshield wiper mold and its molding process to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides a size-adjustable windshield wiper mold, comprising: The upper mold assembly includes a top seat and multiple stamping parts connected to the bottom of the top seat; The lower mold assembly includes a base, a partition connected to the top of the base, a support platform connected to the top of the partition, multiple molding parts placed on the top of the support platform, and multiple fixing parts slidably connected to the support platform; the distribution direction of each molding part is parallel to the length direction of the support platform; the fixing parts can all move relative to the support platform along the length and width directions of the support platform, and the fixing parts are used to fix the molding parts. The lubrication assembly includes multiple lubrication mechanisms and multiple pressing mechanisms. The number of lubrication mechanisms, pressing mechanisms, and molded parts are all the same. The pressing mechanisms are all installed at the bottom of the top base, and each lubrication mechanism is correspondingly attached to a different molded part. Each lubrication mechanism includes two oil storage components that are distributed in parallel along the width of the support platform. The oil storage components extend vertically and are detachably installed on the top of adjacent molded parts. Each oil storage component has an upward-facing oil storage cavity. The pressing mechanism can expel the lubricating oil from the oil storage cavity by squeezing the lubricating oil. The lubrication mechanism is used to adhere and limit the raw materials, and it is also used to store the lubricating oil.

[0006] This design avoids the need to coat all parts of the material with lubricant, reducing the amount of lubricant used, making subsequent cleaning of the material easier, and minimizing the spread of lubricant due to material transfer.

[0007] Preferably, along the width direction of the support platform, in each group of lubrication mechanisms, the end of any oil storage component near another oil storage component has an oil outlet hole connected to the oil storage cavity. The pressing mechanism can make the lubricating oil leave the oil storage cavity through the oil outlet hole by squeezing the lubricating oil. The inner wall of the oil reservoir is connected to a guide, which is used to guide the lubricating oil out of the oil reservoir through the oil outlet.

[0008] With this design, the lubricating oil can leave the oil storage chamber through the oil outlet, guiding the flow of the lubricating oil to avoid wasting too much lubricating oil, while also preventing most of the lubricating oil flowing towards the raw material from falling onto the raw material.

[0009] Preferably, a limiting member is provided on the side of the oil outlet opening away from the oil storage chamber. The limiting member is detachably connected to the adjacent oil storage member. The longitudinal section of the limiting member is arc-shaped. The limiting member is used to limit the range of motion of the lubricating oil leaving the oil storage chamber through the oil outlet.

[0010] With this design, more lubricating oil can slowly move down in the area near the oil reservoir, avoiding the problem of a large amount of lubricating oil rushing out of the oil reservoir and falling directly and quickly onto the raw materials due to the long distance between the oil reservoir and the outlet opening.

[0011] Preferably, the cross-section of the outer wall of any part of the oil reservoir is circular along the vertical direction; the cross-sectional radius of the outer wall at the upper end of the oil reservoir is larger than the cross-sectional radius of the outer wall at the lower end of the oil reservoir.

[0012] With this design, the contact area between the oil reservoir and the raw material is reduced. In this way, even if the galvanized layer on the surface of the raw material is damaged, the degree and extent of damage to the galvanized layer can be reduced.

[0013] Preferably, the upper part of the oil storage component is fitted with a bonding mechanism on the outer side. The bonding mechanism is located below the adjacent limiting component. The bonding mechanism includes multiple bonding components, multiple connecting components, and multiple sets of protruding structures that are evenly distributed around the axis of the adjacent oil storage component. Each bonding component is located between two connecting components and is connected to two adjacent connecting components. The number of protruding structures is the same as the number of bonding components. Each protruding structure is connected to each bonding component in a one-to-one correspondence. Each protruding structure extends in the vertical direction. The upper part of the oil reservoir is slidably connected to a limiting component on the outer side, which is used to fix the bonding mechanism. Each of the fitting mechanisms has a support component at its bottom, and the support components are all connected to the adjacent oil storage components.

[0014] This design can further reduce the extent and degree of damage to the zinc coating on the surface of the raw materials, and also help reduce sticky friction caused by close contact, making the movement of the raw materials in the vertical direction smoother.

[0015] Preferably, each of the bonding mechanisms is provided with a raised mechanism below it. The raised mechanisms all extend vertically and are connected to the lower end of the adjacent oil reservoir. The raised mechanisms are used to guide the lubricating oil to move in the area close to the oil reservoir.

[0016] With this design, the raised mechanism can guide the lubricating oil to the area near the oil reservoir, preventing too much lubricating oil from leaving this area and falling onto the raw materials.

[0017] Preferably, the bottom end of the oil reservoir is provided with an oil guide hole, which has an inclined surface; along the width direction of the support platform, an oil guide pipe is provided on the side of the oil guide hole away from the adjacent oil guide hole, and the oil guide pipe is used to guide the lubricating oil into the adjacent oil guide hole.

[0018] This design allows for the collection of lubricating oil for reuse.

[0019] Preferably, a guide portion is provided on the side of the oil guide hole away from the adjacent oil guide pipe. The guide portion is slidably connected to the adjacent oil reservoir and is used to guide lubricating oil into the oil guide hole.

[0020] This design prevents lubricating oil from overflowing into the area between the guide section and the oil guide hole, or from splashing out of the area between the guide section and the oil guide hole due to high-speed impact on the guide section.

[0021] Preferably, the guide portion can move vertically relative to the oil storage component; the guide portion is perpendicular to the support platform away from the surface of the adjacent oil storage component, and the guide portion can limit the movement of the raw material during the resetting process.

[0022] This design limits the movement of raw materials while preventing the time between the raw materials and other structures from experiencing dynamic friction from being prolonged.

[0023] This invention also provides a molding process for a size-adjustable wiper mold, comprising the following steps: Place the raw material in the area between the upper mold assembly and the lower mold assembly; The upper die assembly moves downward to move the raw material downward, and the stamping part and the forming part cooperate to complete the stamping and forming operation of the raw material; The pressing mechanism is inserted into the oil storage chamber, and the lubricating oil leaves the oil storage chamber to contact the surface of the raw material; Upper mold assembly, pressing mechanism and raw material reset; The raw materials move horizontally; The upper mold assembly continues to move the raw material downwards and then repeats the above steps.

[0024] The beneficial effects of the present invention are as follows: In addition to guiding the upper mold assembly and the lower mold assembly to close the mold by cooperating with the pressing mechanism, the lubrication mechanism can also transfer the lubricating oil in the lubrication mechanism to reduce the wear of the zinc plating layer on the surface of the raw material. In addition, after the lubricating oil leaves the oil storage cavity, it can slide down along the surface of the oil storage component. Some of the lubricating oil will come into contact with some parts of the raw material. By applying lubricating oil to the oil storage component that rubs against the raw material, it is possible to avoid having all parts of the outer side of the raw material coated with lubricating oil. This reduces the amount of lubricating oil used, reduces the difficulty of cleaning the raw material afterward, and reduces the range of lubricating oil dispersion caused by the transfer of the raw material. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the adjustable windshield wiper mold according to an embodiment of the present invention; Figure 2 This is an embodiment of the present invention. Figure 1 A structural diagram omitting the upper mold assembly, base, and pressing mechanism; Figure 3 This is a schematic diagram of the support platform according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the lubrication mechanism and its surrounding structure according to an embodiment of the present invention; Figure 5 This is an embodiment of the present invention. Figure 4 Top view of a partial structure; Figure 6 This is an embodiment of the present invention. Figure 4 A schematic diagram of a partial structure; Figure 7This is a schematic diagram of the bonding mechanism according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the upper mold assembly and pressing mechanism according to an embodiment of the present invention; Figure 9 This is an embodiment of the present invention. Figure 4 Partial sectional view of the structure; Figure 10 This is the raw material contact of the embodiment of the present invention. Figure 2 A schematic diagram of the structure.

[0027] Explanation of reference numerals in the attached figures: 1. Upper mold assembly; 101. Top seat; 102. Stamped part; 2. Lower mold assembly; 201. Base; 202. Divider; 203. Support platform; 204. Molded part; 205. Fixing part; 3. Lubrication components; 301. Lubrication mechanism; 302. Pressing mechanism; 3011. Oil reservoir; 3012. Oil reservoir cavity; 3013. Oil outlet; 3014. Oil guide hole; 4. Guide components; 5. Restricting components; 6. Bonding mechanism; 601. Bonding component; 602. Connecting component; 603. Protruding structure; 7. Limiting components; 8. Support components; 9. Raised mechanism; 10. Oil guide pipe; 11. Guidance Department. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1 to 10 As shown, an embodiment of the present invention provides a size-adjustable windshield wiper mold, comprising: The upper mold assembly 1 includes a top seat 101 and a plurality of stamping parts 102 connected to the bottom of the top seat 101; The lower mold assembly 2 includes a base 201, a partition 202 connected to the top of the base 201, a support platform 203 connected to the top of the partition 202, a plurality of molding parts 204 placed on the top of the support platform 203, and a plurality of fixing parts 205 slidably connected to the support platform 203; the distribution direction of each molding part 204 is parallel to the length direction of the support platform 203; the fixing parts 205 can all move relative to the support platform 203 along the length and width directions of the support platform 203, and the fixing parts 205 are used to fix the molding parts 204; The lubrication assembly 3 includes multiple sets of lubrication mechanisms 301 and multiple sets of pressing mechanisms 302. The number of lubrication mechanisms 301, pressing mechanisms 302, and molded parts 204 are all the same. The pressing mechanisms 302 are all installed at the bottom of the top seat 101. Each lubrication mechanism 301 is correspondingly attached to different molded parts 204. Each lubrication mechanism 301 includes two oil storage components 3011 that are distributed in parallel along the width direction of the support platform 203. The oil storage components 3011 extend vertically and are detachably installed on the top of adjacent molded parts 204. Each oil storage component 3011 has an upward-facing oil storage cavity 3012. The pressing mechanism 302 can squeeze the lubricating oil to make it leave the oil storage cavity 3012. The lubrication mechanism 301 is used to fit and limit the raw materials, and it is also used to store the lubricating oil.

[0030] Optionally, the support platform 203 is provided with a discharge hole for waste material to pass through. When the raw material needs to be punched, the waste material leaving the main body of the raw material can enter the area between the base 201 and the separator 202 through the discharge hole.

[0031] During processing, the raw material can be conveyed into the area between the upper die assembly 1 and the lower die assembly 2 via existing conveyor systems. Then, the upper die assembly 1 moves downwards to move the raw material downwards. When the upper die assembly 1 and the lower die assembly 2 close, the stamping part 102 stamps the raw material, and the forming part 204 cooperates with the stamping part 102 to complete the stamping and forming operation. The forming part 204 may have protruding structures, recessed structures, or holes. The conveying device can be used in conjunction with lifting devices such as elevators to prevent deformation of the raw material when the upper die assembly 1 moves it downwards, and can also help the raw material return to its original position.

[0032] To enhance the corrosion resistance of the finished product, the raw material may have a galvanized layer on the outside. However, considering that the galvanized layer may be damaged due to friction with other structures, resulting in the exposure of the raw material, it will not only affect the appearance but also weaken the corrosion resistance and increase the risk of rust and damage. Therefore, the raw material needs to be treated to prevent damage before stamping, such as by applying lubricating oil to its outside or passing it through an oil reservoir containing lubricating oil.

[0033] To avoid damage to the galvanized layer, the raw material needs to be spaced a certain distance from the forming part 204 when moving along the length of the support platform 203. To prevent the raw material from deviating from the predetermined area during its movement along the length of the support platform 203 and in the vertical direction, a limiting structure is required to limit the raw material. The lubrication mechanism 301 in the lubrication assembly 3 can complete this limiting operation. In addition to guiding the upper mold assembly 1 and the lower mold assembly 2 to close the mold, the lubrication mechanism 301 can also transfer the lubricating oil in the lubrication mechanism 301 to reduce the wear of the galvanized layer on the surface of the raw material.

[0034] Compared to methods such as applying lubricating oil to the outside of the raw material or passing it through an oil reservoir containing lubricating oil, the method adopted in this invention has the following advantages: Firstly, the lubrication operation time coincides with the stamping process time, shortening the overall processing progress, and eliminating the need for manual application or the use of space-consuming devices like oil reservoirs. Secondly, after leaving the oil reservoir 3012, the lubricating oil can slide down the surface of the oil reservoir 3011, with some of it contacting parts of the raw material. By applying lubricating oil to the oil reservoir 3011 where it rubs against the raw material, it is possible to avoid coating all parts of the raw material with lubricating oil, reducing the amount of lubricating oil used, lowering the difficulty of subsequent raw material cleaning, and reducing the range of lubricating oil dispersion caused by raw material transfer. Furthermore, since most of the used lubricating oil is concentrated around the oil reservoir 3011, the difficulty of collecting lubricating oil is reduced, and the amount of lubricating oil recovered is increased.

[0035] The use of lubricating oil is further explained here. When the upper mold assembly 1 and the lower mold assembly 2 are closed, the pressing mechanism 302 is inserted into the oil storage cavity 3012. Part of the pressing mechanism 302 can be attached to the cavity wall of the oil storage cavity 3012. The pressing mechanism 302 squeezes a small part of the lubricating oil out of the oil storage cavity 3012. With this setting, subsequent lubricating oil can be provided to the surface of the oil storage component 3011 in a timely manner to continuously reduce the frictional resistance encountered by the raw material when it moves.

[0036] It should be noted that the pressing mechanism 302 can be set as a pressing rod, and in some cases it can be set as a telescopic rod. In this case, before the upper mold assembly 1 and the lower mold assembly 2 are closed, it is inserted into the oil storage cavity 3012 so that the lubricating oil contacts the outer wall of the oil storage component 3011. After that, the raw material moves down and contacts the lubricating oil. In other cases, the pressing rod cannot be telescopic and it is inserted into the lubrication cavity only after the raw material moves down.

[0037] It should also be noted that since the fasteners 205 can all move relative to the support platform 203 along the length and width directions of the support platform 203, multiple fasteners 205 can be attached and fixed to the molded part 204 from multiple sides. Since the molded part 204 is not integrated with the support platform 203, the molded part 204 can be quickly replaced and fixed by the fasteners 205 after replacement, so as to facilitate adjustment according to the finished products of different sizes.

[0038] It should be noted that, regarding the connection relationship between the various structures in this invention, except for the emphasis on a completely fixed connection, each connected structure can be considered as a separable setting, that is, a detachable connection can be made, such as by using threaded connection, snap-fit, adhesive or other methods to achieve a detachable connection.

[0039] Example 2

[0040] In this embodiment, along the width direction of the support platform 203, in each group of lubrication mechanisms 301, the end of any oil storage component 3011 near another oil storage component 3011 has an oil outlet 3013 connected to the oil storage cavity 3012. The pressing mechanism 302 can make the lubricating oil leave the oil storage cavity 3012 through the oil outlet 3013 by squeezing the lubricating oil. The inner wall of the oil storage chamber 3012 is connected to a guide 4, which is used to guide the lubricating oil out of the oil storage chamber 3012 through the oil outlet 3013.

[0041] It should be noted that since the oil reservoir 3011 needs to limit the raw material, the raw material cannot be set higher than the oil reservoir 3011. Based on this, without the oil outlet 3013, the lubricating oil can only leave the oil reservoir 3012 through the opening of the oil reservoir 3012. On the one hand, it is impossible to guarantee the direction of movement of the lubricating oil after leaving the oil reservoir 3012, which can easily lead to a lot of lubricating oil being wasted. On the other hand, even if the lubricating oil moves closer to the raw material, it can easily fall onto the top of the raw material, causing this part of the lubricating oil to easily transfer with the raw material. This leads to problems such as a decrease in the amount of lubricating oil recovered, an expansion of the distribution range of the lubricating oil, an increase in the difficulty of lubricating oil recovery, and an increase in the difficulty of cleaning the raw material.

[0042] With the oil outlet 3013, lubricating oil can leave the oil storage chamber 3012 through the oil outlet 3013, guiding the flow of lubricating oil to avoid wasting too much lubricating oil, while also preventing most of the lubricating oil flowing towards the raw material from falling onto the raw material.

[0043] It should be noted that the size of the oil storage chamber 3012 and the size and distribution of the oil outlet 3013 can be adjusted according to the actual situation.

[0044] In addition to the oil outlet 3013, a guide 4 is also provided. The guide 4 can form a guide cavity with the wall of the oil storage cavity 3012. The guide cavity has an opening facing upwards to allow lubricating oil to enter, and the guide cavity also has an opening communicating with the oil outlet 3013. When the pressing mechanism 302 is quickly inserted into the oil storage cavity 3012 and quickly removed from the oil storage cavity 3012, the guide cavity is filled with lubricating oil. At least this part of the lubricating oil will leave the oil storage cavity 3012 through the oil outlet 3013, thereby controlling the total amount of lubricating oil used within a certain range within a predetermined time period. This avoids waste due to excessive lubricating oil removal, while also avoiding affecting the lubrication effect due to insufficient lubricating oil removal.

[0045] Example 3

[0046] In this embodiment, a limiting member 5 is provided on the side of the oil outlet 3013 that is away from the oil storage cavity 3012. The limiting member 5 is detachably connected to the adjacent oil storage member 3011. The longitudinal section of the limiting member 5 is arc-shaped. The limiting member 5 is used to limit the range of movement of the lubricating oil leaving the oil storage cavity 3012 through the oil outlet 3013.

[0047] After the lubricating oil leaves the oil storage chamber 3012, it is restricted by the limiting member 5, so that more lubricating oil can slowly move down in the area near the oil storage member 3011, avoiding the fact that more lubricating oil will fall directly and quickly onto the raw material after rushing out of the oil storage chamber 3012 due to the long distance between it and the oil outlet opening.

[0048] The limiting component 5 can also limit the range of movement of the raw material in the vertical direction to prevent the raw material from being higher than the oil storage component 3011.

[0049] Example 4

[0050] In this embodiment, the cross-section of the outer wall of any part of the oil reservoir 3011 is circular along the vertical direction; the cross-sectional radius of the outer wall of the upper part of the oil reservoir 3011 is greater than the cross-sectional radius of the outer wall of the lower part of the oil reservoir 3011.

[0051] When the cross-section of the outer wall of any part of the oil reservoir 3011 is circular, the oil reservoir 3011 can be cylindrical. Compared with the case where the oil reservoir 3011 is square or other shapes, the contact area between the oil reservoir 3011 and the raw material is reduced. In this case, even if the galvanized layer on the surface of the raw material is damaged, the degree and range of damage to the galvanized layer can be reduced.

[0052] In this embodiment, the size of the upper part of the oil storage component 3011 is larger than the size of the lower part of the oil storage component 3011. Based on this, during the process of the raw material moving in the vertical direction, it does not adhere to the lower part of the oil storage component 3011, so that the lubricating oil can adhere to the oil storage component 3011 as much as possible during the downward movement and avoids only flowing into the oil storage component 3011.

[0053] The movement of the lubricating oil is further explained here, taking the case where the raw material moves down first and then the lubricating oil moves out of the oil storage cavity 3012 as an example. After the raw material moves down, the pressing mechanism 302 causes some of the lubricating oil to leave the oil storage cavity 3012. Then, the lubricating oil can first move along the upper part of the oil storage component 3011, and then continue to flow along the lower part of the oil storage component 3011, thus separating it from the raw material. If the upper part and the lower part of the oil storage component 3011 are the same size, more lubricating oil will flow onto the raw material, resulting in a large amount of lubricating oil being wasted.

[0054] Example 5

[0055] In this embodiment, an adhesive mechanism 6 is sleeved on the outer side of the upper part of the oil storage component 3011. The adhesive mechanism 6 is located below the adjacent limiting component 5. The adhesive mechanism 6 includes multiple adhesive components 601 evenly distributed around the axis of the adjacent oil storage component 3011, multiple connecting components 602, and multiple sets of protruding structures 603. Each adhesive component 601 is located between two connecting components 602 and is connected to two adjacent connecting components 602. The number of protruding structures 603 is the same as the number of adhesive components 601. Each protruding structure 603 is connected to each adhesive component 601 in a one-to-one correspondence. Each protruding structure 603 extends in the vertical direction. The upper outer part of the oil storage component 3011 is slidably connected to the limiting component 7, which is used to fix the bonding mechanism 6. Each of the bonding mechanisms 6 has a support member 8 at its bottom, and the support member 8 is connected to the adjacent oil storage member 3011.

[0056] The placement of the bonding mechanism 6 is explained below. The bonding mechanism 6 is sleeved on the outside of the oil storage component 3011. It is supported by the support component 8 and limited by the limiting component 7. The limiting component 7 can move in the vertical direction and can restrict the rotation of the bonding mechanism 6. The bonding mechanism 6 can switch the protruding structure 603 used for bonding with the raw material by rotating, so that the protruding structure 603 can be replaced after some of the protruding structure 603 is worn. The bonding mechanism 6 can be separated from the oil storage component 3011. A structure that restricts the upward movement of the bonding mechanism 6 can be detachably installed on the oil storage component 3011, or this purpose can be achieved directly by the limiting component 5.

[0057] By providing the raised structure 603, on the one hand, the raised structure 603 replaces the oil reservoir 3011 in contact and friction with the raw material, further reducing the potential range and degree of damage to the zinc plating layer on the raw material surface; on the other hand, the raised structure 603 can also provide a certain gap for the raw material during movement, helping to reduce viscous friction caused by close contact, making the movement of the raw material smoother in the vertical direction; furthermore, in some cases, to reduce the total amount of lubricating oil adhering to the raw material and to reduce the difficulty of cleaning the raw material, lubricating oil with poor adhesion can be used. In this case, by providing the raised structure 603, when the lubricating oil flows through these raised points... When structure 603 is used, tiny eddies and turbulence are generated around it. These eddies and turbulence not only enhance the contact effect between the lubricating oil and the surface of the oil reservoir 3011, but also increase the contact area and contact time between the lubricating oil and the surface of the oil reservoir 3011. This allows the lubricating oil to stay on the surface of the oil reservoir 3011 for a longer time, thereby maintaining a more stable and longer-lasting lubrication effect. Furthermore, by coinciding the lubrication operation time with the stamping process time, the lubricating oil can be continuously supplied. This is suitable for situations where a raised structure 603 can also be used when a lubricating oil with strong adhesion is used. Different raised structures 603 can be selected according to the difference in lubricating oil adhesion.

[0058] By providing the protruding structure 603, it is convenient to lubricate the side of the material when it moves horizontally; and the protruding structure 603 can promote the movement of lubricating oil in the area close to the outer side of the upper part of the oil reservoir 3011, so as to avoid excessive lubricating oil spillage.

[0059] During the horizontal movement of the raw material, in some cases, such as when the pressing rod is set as a telescopic rod, the upper mold assembly 1 can drive the pressing rod to squeeze the lubricating oil. In this case, the upper mold assembly 1 may not close with the lower mold assembly 2.

[0060] Optionally, the protrusion structure 603 includes several groups of protrusions spaced apart in a vertical direction. Each group of protrusions includes one or more protrusions, and the size, number, and distribution of each protrusion can be adjusted according to actual conditions. Different protrusion structures 603 have different resistance effects on lubricating oil due to the different sizes, numbers, and distributions of their internal protrusions.

[0061] Example 6

[0062] In this embodiment, a protruding mechanism 9 is provided below each of the bonding mechanisms 6. The protruding mechanisms 9 extend vertically and are connected to the lower end of the adjacent oil reservoir 3011. The protruding mechanism 9 is used to guide the lubricating oil to move in the area close to the oil reservoir 3011.

[0063] Optionally, the protrusion mechanism 9 has the same structure as the protrusion structure 603.

[0064] By setting the protruding mechanism 9, on the one hand, the protruding mechanism 9 can guide the lubricating oil to move in the area close to the oil reservoir 3011, preventing a large amount of lubricating oil from falling off this area onto the raw material; on the other hand, considering that the cross-sectional radius of the outer wall of the upper part of the oil reservoir 3011 is larger than the cross-sectional radius of the outer wall of the lower part of the oil reservoir 3011, when the raw material moves upward, if it moves a small distance in the horizontal direction, it may be unable to continue moving upward because it hits the bottom of the upper part of the oil reservoir 3011. Based on this, the size of the protruding mechanism 9 can be adjusted, so that when the raw material moves upward, the protruding mechanism 9 can limit the raw material and avoid the above situation from occurring.

[0065] Example 7

[0066] In this embodiment, the bottom end of the oil reservoir 3011 is provided with an oil guide hole 3014, which has an inclined surface; along the width direction of the support platform 203, an oil guide pipe 10 is provided on the side of the oil guide hole 3014 away from the adjacent oil guide hole 3014, which is used to guide the lubricating oil into the adjacent oil guide hole 3014.

[0067] The following example illustrates the adjacent arrangement: Along the width direction of the support platform 203, a second oil guide is provided on the side of the first oil guide that is away from the adjacent oil guide. In this case, the adjacent oil guide is the oil guide that is closest to the first oil guide in the width direction of the support platform 203; A second oil guide is provided on the side of the first oil guide that is away from the adjacent oil guide. In this case, the adjacent oil guide is the oil guide that is closest to the first oil guide in any direction.

[0068] The lubricating oil flowing along the surface of the oil reservoir 3011 can flow into the oil guide hole 3014. The oil guide hole 3014 has a slope, which can guide the lubricating oil into the oil guide pipe 10. Then, the oil guide pipe 10 continues to guide the lubricating oil, such as guiding it into the oil storage device for secondary use.

[0069] Example 8

[0070] In this embodiment, a guide portion 11 is provided on the side of the oil guide hole 3014 away from the adjacent oil guide pipe 10. The guide portion 11 is slidably connected to the adjacent oil reservoir 3011 and is used to guide lubricating oil into the oil guide hole 3014.

[0071] To facilitate the flow of lubricating oil into the oil guide hole 3014, the guide part 11 guides it, preventing excessive lubricating oil from flowing onto structures such as the molded part 204. The guide part 11 can form an oil guide cavity with the oil reservoir 3011.

[0072] Optionally, the guide section 11 has the same structure as the guide element 4.

[0073] It should be noted that the protrusion mechanism 9 can slow down the downward movement of the lubricating oil, preventing a large amount of lubricating oil from accumulating between the guide portion 11 and the oil guide hole 3014 in a short period of time. In addition, it can also prevent the lubricating oil from contacting the guide portion 11 at a high speed, thereby preventing some lubricating oil from overflowing into the area between the guide portion 11 and the oil guide hole 3014 or from splashing out of the area between the guide portion 11 and the oil guide hole 3014 due to high-speed impact of the guide portion 11. It is more suitable for situations where the oil guide cavity is small or the oil guide cavity depth is shallow.

[0074] Example 9

[0075] In this embodiment, the guide part 11 can move vertically relative to the oil storage member 3011; the surface of the guide part 11 facing away from the adjacent oil storage member 3011 is perpendicular to the support platform 203, and the guide part 11 can limit the movement of the raw material during the resetting process.

[0076] As mentioned above, when the size of the protrusion mechanism 9 is appropriate, the protrusion mechanism 9 can limit the material during the upward movement of the material. However, with this setting, on the one hand, the time period for dynamic friction between the material and other structures is prolonged, and on the other hand, the protrusion mechanism 9 is prone to wear and cannot continue to limit the material.

[0077] In this embodiment, the guide part 11 replaces the protrusion mechanism 9 to limit the material during the resetting process. Specifically, when the material moves down, it gradually contacts the guide part 11, and the two achieve stable contact through static friction. At this time, the guide part 11 gradually completes the operation of guiding lubricating oil. Afterward, the material moves up to reset. Under the action of static friction, the material drives the guide part 11 to move up. When the guide part 11 is limited by the upper part of the oil storage component 3011 and cannot continue to move up, the material separates from the guide part 11, the material moves up to reset, and the guide part 11 descends to reset under the action of gravity. This setting limits the material while avoiding the extension of the time period of dynamic friction between the material and other structures.

[0078] Example 10

[0079] This invention also provides a molding process for a size-adjustable wiper mold, including the following steps: Place the raw material into the area between the upper mold assembly 1 and the lower mold assembly 2; The upper mold assembly 1 moves downward to drive the raw material downward, and the stamping part 102 and the forming part 204 cooperate to complete the stamping and forming operation of the raw material; The pressing mechanism 302 is inserted into the oil storage cavity 3012, and the lubricating oil leaves the oil storage cavity 3012 to contact the surface of the raw material; Upper mold assembly 1, pressing mechanism 302 and raw material reset; The raw materials move horizontally; The upper mold assembly 1 continues to move the raw material downwards and then repeats the above steps.

[0080] During processing, the raw material can be conveyed into the area between the upper die assembly 1 and the lower die assembly 2 via existing conveyor systems. Then, the upper die assembly 1 moves downwards to move the raw material downwards. When the upper die assembly 1 and the lower die assembly 2 close, the stamping part 102 stamps the raw material, and the forming part 204 cooperates with the stamping part 102 to complete the stamping and forming operation. The forming part 204 may have protruding structures, recessed structures, or holes. The conveying device can be used in conjunction with lifting devices such as elevators to prevent deformation of the raw material when the upper die assembly 1 moves it downwards, and can also help the raw material return to its original position.

[0081] It is important to emphasize that the structure described above can be customized according to actual conditions. For example, the protruding structure 603 and the protruding mechanism 9 can be made of rubber, which has a certain elasticity. This arrangement can improve the adhesion between the two and the raw material in some cases, allowing the raw material to come into contact with more lubricating oil. The part of the oil storage component 3011 near the protruding structure 603 and the protruding mechanism 9 can also be made of rubber, while the pressing mechanism 302 can be set in the shape of a cow horn. When the pressing mechanism 302 enters the oil storage cavity 3012, it can promote the protruding structure 603 to move away from the oil storage cavity 3012.

[0082] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0083] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A size-adjustable windshield wiper mold, characterized in that, include: The upper mold assembly (1) includes a top seat (101) and a plurality of stamping parts (102) connected to the bottom of the top seat (101); The lower mold assembly (2) includes a base (201), a partition (202) connected to the top of the base (201), a support platform (203) connected to the top of the partition (202), a plurality of molding parts (204) placed on the top of the support platform (203), and a plurality of fixing parts (205) slidably connected to the support platform (203); the distribution direction of each molding part (204) is parallel to the length direction of the support platform (203); the fixing parts (205) can all move relative to the support platform (203) along the length and width directions of the support platform (203), and the fixing parts (205) are used to fix the molding parts (204). The lubrication assembly (3) includes multiple lubrication mechanisms (301) and multiple pressing mechanisms (302). The number of lubrication mechanisms (301), the number of pressing mechanisms (302), and the number of molded parts (204) are all the same. The pressing mechanisms (302) are all installed at the bottom of the top seat (101). Each lubrication mechanism (301) is attached to a different molded part (204) in a corresponding manner. Each lubrication mechanism (301) includes two parallel lubrication mechanisms distributed along the width direction of the support platform (203). Oil storage components (3011) extend vertically and are detachably installed on the top of adjacent molded parts (204). Each oil storage component (3011) has an upward-facing oil storage cavity (3012). The pressing mechanism (302) can expel the lubricating oil from the oil storage cavity (3012) by squeezing the lubricating oil. The lubrication mechanism (301) is used to fit and limit the raw material and also to store the lubricating oil. Along the width direction of the support platform (203), in each group of lubrication mechanisms (301), the end of any oil reservoir (3011) near another oil reservoir (3011) has an oil outlet (3013) connected to the oil reservoir (3012). The pressing mechanism (302) can squeeze the lubricating oil to make the lubricating oil leave the oil reservoir (3012) through the oil outlet (3013). The inner wall of the oil reservoir (3012) is connected to a guide (4), which is used to guide the lubricating oil to leave the oil reservoir (3012) through the oil outlet (3013). Each of the oil outlet holes (3013) is provided with a limiting member (5) on the side away from the oil storage chamber (3012). The limiting members (5) are detachably connected to the adjacent oil storage member (3011). The longitudinal section of the limiting members (5) is arc-shaped. The limiting members (5) are used to limit the range of motion of the lubricating oil leaving the oil storage chamber (3012) through the oil outlet holes (3013). In the vertical direction, the cross-section of the outer wall of any part of the oil reservoir (3011) is circular; the cross-sectional radius of the outer wall of the upper part of the oil reservoir (3011) is greater than the cross-sectional radius of the outer wall of the lower part of the oil reservoir (3011). The upper outer side of each oil reservoir (3011) is fitted with a bonding mechanism (6). Each bonding mechanism (6) is located below the adjacent limiting member (5). Each bonding mechanism (6) includes multiple bonding members (601) evenly distributed around the axis of the adjacent oil reservoir (3011), multiple connecting members (602), and multiple sets of protruding structures (603). Each bonding member (601) is located between two connecting members (602) and is connected to the two adjacent connecting members (602). The protruding structures are... The number of structures (603) is the same as the number of bonding parts (601). Each protruding structure (603) is connected to each bonding part (601) in a corresponding manner. Each protruding structure (603) extends in the vertical direction. The upper part of the oil storage part (3011) is slidably connected to a limiting part (7). The limiting part (7) is used to fix the bonding mechanism (6). The bottom of the bonding mechanism (6) is provided with a support part (8). The support part (8) is connected to the adjacent oil storage part (3011).

2. The adjustable-size wiper mold according to claim 1, characterized in that, Each of the bonding mechanisms (6) is provided with a protruding mechanism (9) below it. The protruding mechanisms (9) all extend in the vertical direction and are connected to the lower part of the adjacent oil reservoir (3011). The protruding mechanism (9) is used to guide the lubricating oil to move in the area close to the oil reservoir (3011).

3. The size-adjustable wiper mold according to claim 2, characterized in that, The bottom end of the oil reservoir (3011) is provided with an oil guide hole (3014), which has an inclined surface; along the width direction of the support platform (203), an oil guide pipe (10) is provided on the side of the oil guide hole (3014) away from the adjacent oil guide hole (3014), and the oil guide pipe (10) is used to guide the lubricating oil into the adjacent oil guide hole (3014).

4. The adjustable-size wiper mold according to claim 3, characterized in that, The oil guide hole (3014) is provided with a guide part (11) on the side away from the adjacent oil guide pipe (10). The guide part (11) is slidably connected to the adjacent oil reservoir (3011). The guide part (11) is used to guide lubricating oil into the oil guide hole (3014).

5. The size-adjustable wiper mold according to claim 4, characterized in that, The guide (11) can move vertically relative to the oil storage unit (3011); the surface of the guide (11) away from the adjacent oil storage unit (3011) is perpendicular to the support platform (203), and the guide (11) can limit the movement of the raw material during the resetting process.

6. A molding process for an adjustable-size windshield wiper mold, using the adjustable-size windshield wiper mold as described in any one of claims 1-4, characterized in that... The process includes the following steps: placing the raw material into the area between the upper die assembly (1) and the lower die assembly (2); the upper die assembly (1) moves down to move the raw material down, and the stamping part (102) and the forming part (204) cooperate to complete the stamping and forming operation of the raw material; the pressing mechanism (302) is inserted into the oil storage cavity (3012), and the lubricating oil leaves the oil storage cavity (3012) to contact the surface of the raw material; the upper die assembly (1), the pressing mechanism (302) and the raw material are reset; the raw material moves in the horizontal direction; the upper die assembly (1) continues to move the raw material down and then repeats the above steps.

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