Saddle forming process, forming mold and formed saddle

Abstract

The present application relates to the technical field of saddle molding, and in particular to a saddle molding process, a molding mold and a molded saddle, the molding process comprising the following steps: S1, fixing: installing the spliced ​​surface leather into the upper mold cavity of the molding mold so that the spliced ​​surface leather is tightly attached to the bottom of the upper mold cavity; S2, installing: installing the saddle substrate with a molded foam layer on the lower mold of the molding mold; S3, mold closing: the upper mold and the lower mold of the molding mold move towards each other; S4, injection molding: in the upper mold cavity, injecting saddle leather material of the same color or different color as the spliced ​​surface leather in the circumferential direction of the spliced ​​surface leather; S5, cooling and demolding: waiting for the saddle leather material to cool, the upper mold and the lower mold of the molding mold move away from each other, and the molded saddle with the spliced ​​surface leather is removed, thereby reducing the possibility of surface damage of the saddle with the spliced ​​surface and extending the service life of the saddle.

Description

Technical Field

[0001] The present application relates to the technical field of saddle molding, and in particular to a saddle molding process, a molding mold and a molded saddle. Background Art

[0002] At present, bicycles are a green and convenient way of travel, and the saddle is an important part of the bicycle, which is used to support people's buttocks and can enhance the rider's riding experience.

[0003] The surface color of existing saddles is mostly black. Under the sunlight, especially in summer, the temperature of the saddle surface can reach about 75 degrees. When the rider sits on the saddle, it takes a long time for the temperature of the saddle surface to drop to a suitable temperature. In view of this situation, a saddle with a spliced ​​surface is produced. The spliced ​​surface is made of light-colored leather such as bright silver, which can reduce the temperature of the saddle surface under the sunlight.

[0004] The above-mentioned prior art solution has the following defects: there are some gaps on the saddle surface, which are gaps formed by connecting and sewing different leathers. Due to the existence of the gaps, the saddle is exposed to the sun. After being washed by rain and exposed to the sun, the gaps on the surface of the saddle will be damaged first, which will shorten the service life of the spliced ​​saddle. Summary of the invention

[0005] In order to reduce the possibility of surface damage of a saddle with a spliced ​​surface and extend the service life of the saddle, the present application provides a saddle molding process, a molding mold and a molded saddle.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A saddle forming process comprises the following steps:

[0008] S1. Fixing: Install the spliced ​​leather into the upper mold cavity of the molding mold so that the spliced ​​leather is close to the bottom of the upper mold cavity;

[0009] S2, installation: installing the saddle base plate with the formed foam layer on the lower mold of the forming mold;

[0010] S3, mold closing: the upper mold and the lower mold of the molding mold move toward each other;

[0011] S4, injection molding: injecting saddle leather material of the same color or different color as the splicing surface leather in the circumferential direction of the splicing surface leather in the upper mold cavity;

[0012] S5, cooling and demoulding: wait for the saddle leather material to cool down, and move the upper mold and the lower mold of the molding mold away from each other to remove the molded saddle with the spliced ​​surface leather.

[0013] By adopting the above scheme, when the saddle with stitching surface leather is processed by the above molding process, the saddle leather material of the same color or different color as the stitching surface injected into the upper mold cavity has a higher temperature, which will cause the edge of the stitching surface leather to soften and merge with the saddle leather cover leather material just injected, so that the two can be connected, which can make the gap between the stitching surface leather and the surrounding leather material more firm, thereby reducing the possibility of surface damage of the saddle with stitching surface and extending the service life of the saddle.

[0014] Optionally, a negative pressure component is connected to the upper mold of the molding mold, and a plurality of air holes for vacuuming are provided at the bottom of the upper mold cavity of the molding mold. After the spliced ​​surface leather is tightly attached to the upper mold cavity, the negative pressure component performs a vacuuming operation.

[0015] Optionally, before performing step S1, the area of ​​the splicing surface is determined, a molding mold is selected according to the area of ​​the splicing surface, and then step S1 is performed, at which time the splicing surface completely covers the multiple air holes at the bottom of the upper mold cavity.

[0016] Optionally, in step S3, after the molding mold is closed, the side of the foaming layer on the lower mold away from the lower mold is in close contact with the side of the splicing surface leather away from the upper mold.

[0017] Optionally, the foaming layer in step S2 is at least one layer.

[0018] Optionally, after removing the saddle with the patchwork leather, trim the joints around the patchwork leather.

[0019] Optionally, after removing the saddle with the patchwork leather, apply a non-stick coating to the surface of the saddle.

[0020] A saddle molding die is used to implement the above saddle molding process, comprising an upper die, a negative pressure component is connected to the upper die, and a plurality of air holes connected to the negative pressure component are opened at the bottom of the upper die cavity.

[0021] Optionally, the plurality of air holes are arranged in circular arrays with different radii with the center of the upper mold cavity as the center of the circle, and a control switch is connected between the negative pressure component and the circular array of each radius.

[0022] A saddle is formed by using the above-mentioned forming mold and executing the above-mentioned saddle forming process, comprising a spliced ​​surface leather, the spliced ​​surface leather is surrounded by leather of the same color or a different color as the spliced ​​surface leather, and the spliced ​​surface leather and the surrounding leather are thermoplastically fused together.

[0023] In summary, this application has the following technical effects:

[0024] 1. By adopting the saddle molding process of the present application, the stitching surface leather and the surrounding leather are fused to replace the previous sewing connection, so that the saddle surface has a stronger integrity, thereby reducing the possibility of surface damage of the saddle with the stitching surface and extending the service life of the saddle;

[0025] 2. By setting up a negative pressure component, the negative pressure component can make the stitching surface leather close to the bottom of the upper mold cavity, which can reduce the possibility of the leather material injected into the upper mold cavity entering the gap between the stitching surface leather and the bottom wall of the upper mold cavity;

[0026] 3. By applying an anti-stick coating on the surface of the saddle, the anti-stick coating can improve the surface shape of the saddle. The anti-stick coating can prevent people from sticking decals and other items that affect the appearance of the saddle on the surface of the saddle. The anti-stick coating ensures the beauty of the saddle. If stickers and other items are stuck to the saddle, when people peel the stickers off the saddle, the glue on the stickers may remain on the saddle. The anti-stick coating can prevent the glue from remaining on the surface of the saddle. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is an overall structural diagram of the saddle forming mold in the embodiment of the present application;

[0028] Figure 2 is an overall structural diagram of the saddle forming mold from another angle in the embodiment of the present application;

[0029] Figure 3 is a partial cross-sectional view highlighting the internal structure of the control tube in the embodiment of the present application;

[0030] Figure 4 It is a partial view highlighting the installation position of the limit strip inside the control tube in the embodiment of the present application.

[0031] In the figure, 1. upper mold; 11. air vent; 2. lower mold; 3. negative pressure assembly; 31. negative pressure pump; 32. negative pressure pipe; 33. control switch; 331. control pipe; 332. fixed plug; 333. movable plug; 334. adjusting screw; 34. branch pipe; 4. limit strip; 5. auxiliary pipe. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] The present application provides a saddle forming process, comprising the following steps:

[0034] S1, fixing: according to the size of the saddle leather cover to be formed, a suitable size of stitching surface leather is selected, and the stitching surface leather can be of various colors. If the temperature of the saddle under sunlight needs to be reduced, the stitching surface leather needs to be light-colored leather, such as silver stitching surface leather; according to the size of the stitching surface leather, the control switch 33 is used to control the connection state between the negative pressure component 3 and the air vents 11 on the upper mold cavity. At this time, it is necessary to ensure that when the stitching surface leather is pressed against the bottom of the upper mold cavity, the negative pressure component 3 is started, and the stitching surface leather can cover all the air vents 11 connected to the negative pressure component 3;

[0035] S2, installation: installing the saddle substrate with the formed foam layer on the lower mold 2 of the forming mold. It should be noted that the foam layer mentioned in this step can be a single-layer foam or a multi-layer foam;

[0036] S3, mold closing: the upper mold 1 and the lower mold 2 of the molding mold move toward each other until the side of the foaming layer of the saddle base plate on the lower mold 2 away from the lower mold 2 is in close contact with the side of the splicing surface leather away from the upper mold 1;

[0037] S4, injection molding: Inject saddle leather material into the upper mold cavity in the circumferential direction of the stitching surface leather. It should be noted that the color of the saddle leather material injected into the upper mold cavity is not limited, and can be the same color as the stitching surface leather or a different color from the stitching surface leather. During the process, it is determined according to the conditions of the target product;

[0038] S5, cooling and demolding: waiting for the saddle leather material to cool, the upper mold 1 and the lower mold 2 of the molding mold move away from each other, and the molded saddle with the spliced ​​surface leather is removed;

[0039] S6. Trimming: Trim the joints around the spliced ​​leather.

[0040] S7, protection: applying an anti-stick coating on the surface of the formed saddle. In one embodiment, the anti-stick coating used in this step can be an anti-stick release agent, and other agents with the same anti-stick effect can be used.

[0041] Reference Figure 1 The present application also provides a saddle forming mold, including an upper mold 1, a lower mold 2 and a negative pressure component 3, the upper mold 1 and the lower mold 2 are arranged opposite to each other, an upper mold cavity for fixing the splicing surface leather is opened on the side of the upper mold 1 close to the lower mold 2, a plurality of air holes 11 are opened on the bottom wall of the upper mold cavity, and the negative pressure component 3 is connected to the inside of the air holes 11;

[0042] Reference Figure 2Specifically, the negative pressure assembly 3 includes a negative pressure pump 31, a negative pressure tube 32, a control switch 33 and a branch tube 34. The air hole 11 on the upper mold 1 takes the center of the upper mold cavity as the center of the circle. According to a plurality of circular arrays with different radii, a plurality of branch tubes 34 are also arranged. The number of branch tubes 34 is the same as the number of circular rings formed by the plurality of air holes 11 arrays, and the two correspond one to one and are interconnected, that is, one branch tube 34 corresponds to a circular ring array of one radius, and a plurality of branch tubes 34 are coaxially embedded in the side of the upper mold 1 away from the lower mold 2; a plurality of branch tubes 34 are simultaneously connected to the control switch 33, one end of the negative pressure tube 32 is connected to the inside of the branch tube 34 through the control switch 33, and the other end is connected to the air inlet of the negative pressure pump 31. The control switch 33 is mainly used to control which branches 34 the negative pressure tube 32 is connected to, so as to ensure that the stitching surface leather can completely cover the air holes 11 on the bottom wall of the upper mold cavity that are connected to the inside of the negative pressure pump 31, so that the stitching surface leather can be tightly attached to the bottom of the upper mold cavity.

[0043] Reference Figure 3 and Figure 4 In the present application, the control switch 33 includes a control tube 331, a fixed plug 332, a movable plug 333 and an adjusting screw 334. The fixed plug 332 and the movable plug 333 are both arranged inside the control tube 331. The outer diameters of the fixed plug 332 and the movable plug 333 are equal to the inner diameter of the control tube 331. The fixed plug 332 is located at one end of the control tube 331 and is fixedly connected to the control tube 331. The movable plug 333 can reciprocate inside the control tube 331 along the central axis direction of the control tube 331; the adjusting screw 334 is coaxially inserted into the control tube 331. One end of the adjusting screw 334 close to the fixed plug 332 is rotatably connected to the fixed plug 332, and the other end passes through the movable plug 333 and is threadedly connected to the movable plug 333; two limit bars 4 are arranged on the inner wall of the control tube 331, which pass through the movable plug 333 at the edge of the movable plug 333 and are slidably connected to the movable plug 333;

[0044] One end of the negative pressure tube 32 away from the negative pressure pump 31 is connected to the interior of the control tube 331 on the circumferential surface of the control tube 331, and the end of the negative pressure tube 32 connected to the control tube 331 is arranged near the fixed plug 332. Each branch tube 34 is connected to an auxiliary tube 5, the auxiliary tube 5 is connected to the interior of the branch tube 34, and the other end is connected to the interior of the control tube 331 on the circumferential surface of the control tube 331. It should be noted that the ends of the multiple auxiliary tubes 5 connected to the control tube 331 and the ends of the negative pressure tube 32 connected to the interior of the control tube 331 are located on the same straight line, and as the radius of the branch tube 34 corresponding to the auxiliary tube 5 gradually increases, the joint connecting the auxiliary tube 5 and the control tube 331 gradually moves away from the fixed plug 332, and the distance between the ends of two adjacent auxiliary tubes 5 connected to the control tube 331 is greater than or equal to the thickness of the movable plug 333.

[0045] When controlling the connection state of the branch pipe 34 and the negative pressure pipe 32 by the control switch 33, people only need to rotate the adjustment screw 334 to drive the movable plug 333 to move inside the control pipe 331. The greater the distance between the movable plug 333 and the fixed plug 332, the greater the maximum radius value of the multiple branch pipes 34 connected to the negative pressure pipe 32.

[0046] The present application also provides a saddle formed using the above-mentioned molding mold and performing the above-mentioned molding process, including a patchwork surface leather, the patchwork surface leather is surrounded by leather of the same color or a different color as the patchwork surface leather, and the patchwork surface leather and the surrounding leather are thermoplastically fused together.

[0047] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A saddle forming die, characterized in that: The invention comprises an upper mold (1), the upper mold (1) is connected to a negative pressure component (3), a plurality of air holes (11) connected to the negative pressure component (3) are provided at the bottom of the upper mold cavity, the plurality of air holes (11) are arranged in a circular array with a center of the upper mold cavity as the center, the negative pressure component (3) comprises branch pipes (34), the number of branch pipes (34) is the same as the number of circular rings formed by the array of air holes (11), the two branch pipes (34) correspond to each other and are interconnected, a control switch (33) is connected between the negative pressure component (3) and the circular array of each radius, the control switch (33) comprises a control pipe (331), a fixed plug (332), a movable plug (333) and an adjusting screw (334), the fixed plug (332) and the movable plug (333) are both arranged inside the control pipe (331), the fixed plug (332) and the movable plug (333) are arranged inside the control pipe (331), and the fixed plug (332) and the movable plug (333) are arranged inside the control pipe (331). The outer diameters of the plug (332) and the movable plug (333) are both equal to the inner diameter of the control tube (331); the fixed plug (332) is located at one end of the control tube (331) and is fixedly connected to the control tube (331); the movable plug (333) reciprocates inside the control tube (331) along the central axis direction of the control tube (331); the adjusting screw (334) is coaxially inserted into the control tube (331); one end of the adjusting screw (334) close to the fixed plug (332) is rotatably connected to the fixed plug (332); the other end penetrates the movable plug (333) and is threadedly connected to the movable plug (333); and two limit bars (4) are provided on the inner wall of the control tube (331), which penetrate the movable plug (333) at the edge of the movable plug (333) and are slidably connected to the movable plug (333).

2. A saddle forming process, characterized in that: Using the saddle forming mold in claim 1 comprises the following steps: S1, fixing: using the control switch (33) to control the connection state between the branch pipe (34) and the negative pressure pipe (32), installing the spliced ​​leather into the upper mold cavity of the molding die, and starting the negative pressure assembly (3) to make the spliced ​​leather close to the bottom of the upper mold cavity; S2, installation: installing the saddle base plate with the formed foam layer on the lower mold (2) of the molding mold; S3, mold closing: the upper mold (1) and the lower mold (2) of the molding mold move toward each other. After the molding mold is closed, the side of the foaming layer on the lower mold (2) away from the lower mold (2) is in close contact with the side of the splicing surface leather away from the upper mold (1); S4, injection molding: injecting saddle leather material of the same color or different color as the splicing surface leather in the circumferential direction of the splicing surface leather in the upper mold cavity; S5, cooling and demoulding: waiting for the saddle leather material to cool, the upper mold (1) and the lower mold (2) of the molding mold move away from each other, and the molded saddle with the spliced ​​surface leather is removed.

3. A saddle forming process according to claim 2, characterized in that: Before performing step S1, the area of ​​the splicing surface is determined, and a molding die is selected according to the area of ​​the splicing surface. Then, step S1 is performed, and at this time, the splicing surface completely covers the multiple air holes (11) at the bottom of the upper mold cavity.

4. A saddle forming process according to claim 2, characterized in that: The foaming layer in step S2 is at least one layer.

5. A saddle forming process according to any one of claims 2-4, characterized in that: After removing the saddle with the patchwork leather, trim the joints around the patchwork leather.

6. A saddle forming process according to any one of claims 2-4, characterized in that: After removing the saddle with the patchwork leather, apply a non-stick coating to the surface of the saddle.

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