A new type of sealing strip mating mold

Abstract

This utility model discloses a novel sealing strip mating mold, belonging to the field of automotive parts processing technology. It includes a control system and two sets of mold bodies. The control system controls the opening and closing of the two sets of mold bodies, and also controls the two sets of mold bodies to clamp one end of the door opening strip and bring them closer together to achieve mating. Both mold bodies are provided with channels adapted to the door opening strip, and both mold bodies have air extraction holes communicating with the channels. The air extraction holes are connected to a vacuum source, which is electrically connected to the control system. The sealing strip mating mold provided by this utility model, by opening air extraction holes communicating with the channels on the mold body and setting a vacuum source to draw negative pressure into the air extraction holes, strengthens the fixation of the bubble tube position of the door opening strip on the mold body, making the bubble tube position of the door opening strip fit better into the inner cavity of the mold. This solves the problem of mold adjustment required when the opening shape of the colliding product fluctuates, ensuring the corner strength and appearance of the product.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and specifically discloses a new structure sealing strip docking mold. Background Technology

[0002] Car door sealing strips, also known as automotive door opening strips, are products used to seal car doors, making them difficult to open and providing functions such as shock absorption, waterproofing, sound insulation, heat insulation, dust prevention, and fixation. Automotive door opening strips have a hollow structure (bubble tube). After being extruded and cut to a certain length, the two ends need to be glued together using a mating mold. Due to the hollow part of the product, there is no support in this area, resulting in insufficient clamping force of the mating mold at this location, thus reducing the bonding strength. The current method is to apply several layers of tape to the corresponding position on the mating mold to increase the clamping force between the product and the mold.

[0003] For example, patent CN219028589U, published on 2023-05-16, discloses a connecting mold, including two half-molds arranged opposite each other; the half-mold includes: a body having a mating end face; a cavity formed inside the body; the cavity has a first cavity suitable for placing an installation part of a product and a second cavity suitable for placing a sealing part of a product; a suction part is formed on the inner wall of the second cavity near the mating end face; the suction part is adapted to communicate with a vacuum generator.

[0004] When using tape to increase the clamping force on the car door opening strip, if the extrusion nozzle fluctuates, it is necessary to adjust the thickness of the tape (applying tape multiple times in the same position) and its position in a timely manner to meet the product's bonding strength requirements. This operation is cumbersome and the clamping effect is difficult to control. Utility Model Content

[0005] The purpose of this invention is to provide a new type of sealing strip mating mold.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A novel sealing strip mating mold includes a control system and two sets of symmetrical mold bodies. Each mold body has a channel adapted to the product, and each mold body has an air extraction hole communicating with the channel. The air extraction hole is connected to a vacuum source, and the vacuum source is electrically connected to the control system. The control system controls the vacuum source to draw a vacuum and controls the movement of the two sets of mold bodies.

[0008] The aforementioned docking mold includes a first clamping block, a second clamping block, a third clamping block, and a fourth clamping block, which together form a channel.

[0009] The vacuum source for the aforementioned docking mold is a vacuum pump, and the input end of the vacuum pump is connected to the evacuation port through a pipe.

[0010] The aforementioned docking mold has an adsorption component fixedly attached to both the first and third clamping blocks to support the hollow part of the product. The adsorption component is made of porous material and is adapted to the outer wall of the hollow part of the product. The air extraction hole is connected to the location of the adsorption component on the first or third clamping block.

[0011] The aforementioned docking mold has a breathable steel adsorption component.

[0012] In the aforementioned docking mold, cavities are provided on the first and second clamping blocks at the positions corresponding to the adsorption components, and the air extraction holes are connected to their respective cavities.

[0013] The aforementioned docking mold has an air extraction port and a vacuum source connected by a pipe. A vacuum gauge is installed on the pipe, and the vacuum gauge communicates with the control system.

[0014] The aforementioned docking mold has an alarm function in its control system. The control system receives the monitoring results of the vacuum gauge in real time and issues an alarm based on the results.

[0015] The aforementioned docking mold has a heating component on its body, which is electrically connected to the control system.

[0016] The aforementioned docking mold's control system can control the vacuuming start and stop times.

[0017] In the above technical solution, the sealing strip docking mold provided by this utility model strengthens the fixation of the bubble tube position of the door opening strip on the mold body by opening an air extraction hole that communicates with the channel on the mold body and setting a vacuum source to draw negative pressure in the air extraction hole, so that the bubble tube position of the door opening strip can fit the inner cavity of the mold better. This solves the problem that the mold needs to be adjusted when the opening shape of the colliding product fluctuates, and ensures the corner strength and appearance of the product. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the mold body provided in an embodiment of the present utility model;

[0020] Figure 2 A front view of the mold body provided in an embodiment of this utility model;

[0021] Figure 3This is a schematic diagram of the installation state of the adsorption component on the first clamping block according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the first clamping block provided in an embodiment of the present utility model;

[0023] Figure 5 An exploded view of the mold body provided in an embodiment of this utility model;

[0024] Figure 6 A system block diagram provided for an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Control system; 2. Mold body; 21. First clamping block; 211. Cavity; 22. Second clamping block; 23. Third clamping block; 24. Fourth clamping block; 25. Channel; 26. Air extraction hole; 3. Vacuum source; 4. Adsorption component; 5. Vacuum gauge; 6. Heating component. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] like Figures 1-6 As shown in the figure, the present invention provides a novel sealing strip docking mold, including a control system 1 and two sets of symmetrical mold bodies 2. Each mold body 2 is provided with a channel 25 adapted to the product. Each mold body 2 is provided with an air extraction hole 26 communicating with the channel 25. The air extraction hole 26 is connected to a vacuum source 3. The control system 1 controls the vacuum source 3 to draw a vacuum and controls the movement of the two sets of mold bodies 2.

[0030] Furthermore, the mold body 2 includes a first clamping block 21, a second clamping block 22, a third clamping block 23 and a fourth clamping block 24, which together form a channel 25.

[0031] Furthermore, the vacuum source 3 is a vacuum pump, and the input end of the vacuum pump is connected to the evacuation port 26 through a pipe.

[0032] Specifically, the mating mold is used to clamp the two ends of the product, i.e., the door opening strip, and press them together to achieve bonding between the two ends of the door opening strip, thereby forming a ring structure with the two ends connected. It includes a control system 1 and two sets of mold bodies 2 with identical structures. Only one set of mold bodies 2 is shown in the figure. The control system 1 controls the opening and closing of the mold bodies 2 to clamp or release the ends of the door opening strip. The two mold bodies 2 respectively clamp the two ends of the door opening strip and press them together; Figure 1 As shown, the mold body 2 has a rectangular structure. The mold body 2 includes a first clamping block 21, a second clamping block 22, a third clamping block 23, and a fourth clamping block 24 that cooperate with each other. These four blocks form a channel 25 with the same shape as the doorway strip. The channel 25 is arranged along the length of the first clamping block 21. The mold body 2 has a channel 25 extending through it along its own length. Optionally, Figure 2 In the view, the first clamping block 21 and the third clamping block 23 are driven to move away from each other, that is, the first clamping block 21 is driven towards... Figure 2 Moving to the left in the view, the third clamp 23 is driven towards Figure 2 Move to the right in the view. Figure 2 The second clamping block 22 first moves to the left synchronously with the first clamping block 21, and then is driven to move downward relative to the first clamping block 21. Similarly, Figure 2 The fourth clamping block 24 moves to the right synchronously with the third clamping block 23, and then moves downward relative to the third clamping block 23 under drive. The movement of each part of the mold body 2 can be controlled by the control system 1, which controls the driving components. The driving components are existing linear drive mechanisms such as cylinders. Using cylinders to drive each clamping block in a single direction is existing technology and can be directly applied. Similarly, using a linear drive mechanism to drive the two mold bodies 2 to move towards each other is also existing technology and will not be elaborated further. In addition, both the first clamping block 21 and the third clamping block 23 have air extraction holes 26, which are located along the width direction of the first clamping block 21 and the third clamping block 23. Figure 2 The horizontal opening in the view is connected to the position of the bubble tube corresponding to the door opening strip on the channel 25. The control system 1 is also connected to a vacuum source 3, such as a vacuum pump. The input end of the vacuum pump is connected to the air extraction port 26 through a pipe.

[0033] When assembling the door opening strip, the door opening strip is placed inside the mold body 2, and the control system 1 controls the drive component to close the mold body 2, forming... Figure 2 In the state shown, the end of the door opening strip is in the groove 25 on the mold body 2. Then, the control system 1 controls the vacuum pump to extract the air from the air extraction hole 26 (this process can be performed by squeezing the air from the inside of the end of the door opening strip towards the inner wall of the mold body 2 to form a vacuum environment), so that a negative pressure can be formed in the air extraction hole 26, thereby sucking the hollow part of the door opening strip at the position corresponding to the air extraction hole 26, improving the clamping effect on the door opening strip. After fixing both ends of the door opening strip, glue or film can be applied to both ends of the door opening strip, and the two mold bodies 2 are driven to move towards each other to achieve the docking of the two ends of the door opening strip.

[0034] The sealing strip mating mold provided by this utility model has a vacuum hole 26 connected to the channel 25 on the mold body 2, and a vacuum source 3 is set to draw negative pressure into the vacuum hole 26. This strengthens the fixation of the bubble tube position of the door opening strip on the mold body 2, and makes the bubble tube position of the door opening strip fit the inner cavity of the mold body 2 better. This solves the problem that the mold needs to be adjusted when the opening shape of the colliding product fluctuates, and ensures the corner strength and appearance of the product.

[0035] Furthermore, both the first clamping block 21 and the third clamping block 23 are fixedly connected to an adsorption element 4 that supports the hollow part of the product. The adsorption element 4 is made of porous material and is adapted to the outer wall of the hollow part of the product. The air extraction hole 26 is connected to the position of the adsorption element 4 on the first clamping block 21 or the third clamping block 23.

[0036] Optionally, the adsorption element 4 is made of breathable steel.

[0037] Specifically, in the above embodiment, by connecting the air extraction hole 26 to the channel 25, a vacuum pump is used to extract air from the air extraction hole 26 to create a negative pressure, allowing the bubble tubes of the door opening strip to be adsorbed. However, due to the influence of the diameter of the air extraction hole 26, only a small portion of the bubble tubes of the door opening strip are adsorbed. In this embodiment, both the first clamping block 21 and the third clamping block 23 are fixedly equipped with adsorption components 4 to support the door opening strip. Since the positions of the bubble tubes on the door opening strip are different for the first clamping block 21 and the third clamping block 23, the structures of the adsorption components 4 provided on the first clamping block 21 and the third clamping block 23 will be different, such as... Figure 5 As shown, the adsorption element 4 is a porous material with a certain degree of hardness. Optionally, the adsorption element 4 is made of breathable steel and is embedded in the first clamping block 21 and the third clamping block 23, as shown. Figure 3As shown, the surface of the adsorption member 4 is adapted to the outer wall of the door opening strip. The above-mentioned air extraction hole 26 is connected to the setting position of the adsorption member 4 on the first clamping block 21 (third clamping block 23). With this setting, the adsorption member 4 is used to support the door opening strip to avoid the door opening strip being adsorbed and causing local deformation. At the same time, it increases the area of ​​the door opening strip being adsorbed, thereby improving the fixing effect of the door opening strip and making the bubble tube position of the door opening strip more firmly fixed in the mold body 2.

[0038] Furthermore, cavities 211 are provided on the first clamping block 21 and the second clamping block 22 at positions corresponding to the adsorption element 4, and the air extraction hole 26 is connected to its corresponding cavity 211.

[0039] Specifically, such as Figure 4 and Figure 5 As shown, cavities 211 are provided on the first clamping block 21 and the third clamping block 23 at the positions corresponding to the adsorption element 4. The aforementioned air extraction hole 26 is directly connected to the cavity 211. One side of the adsorption element 4 is completely inside the cavity 211, that is, the tiny exhaust hole on the adsorption element 4 is directly connected to the cavity 211. The cavity 211 is then connected to the air extraction hole 26. This arrangement makes it easier to maintain the air pressure in the tiny exhaust hole inside the adsorption element 4 and the cavity 211, thereby ensuring that the part of the door opening strip that contacts the adsorption element 4 is subjected to uniform force, and also improving the efficiency of vacuuming.

[0040] In another embodiment of this utility model, the air extraction port 26 and the vacuum source 3 are connected by a pipe, and a vacuum gauge 5 is provided on the pipe. The vacuum gauge 5 communicates with the control system 1.

[0041] Furthermore, the control system 1 has an alarm function, and the control system 1 monitors the vacuum gauge 5 in real time and alarms according to the results.

[0042] Specifically, a vacuum gauge 5 is added between the evacuation port 26 and the vacuum source 3. The vacuum gauge 5 has an I / O function (interface) and is connected to the control system 1. The interface enables information exchange between the vacuum gauge 5 and the control system 1 to monitor whether the pipeline is unobstructed. For example, before the door opening strip is placed, the vacuum degree of the air path is small. After the door opening strip is placed, with the activation of the vacuum source 3, the vacuum degree in the cavity 211 and the evacuation port 26 should increase, thereby determining that the air path is correct and the product is placed in place. In addition, the control system 1 has an alarm function. Optionally, the control system 1 is also connected to an alarm. The control system 1 can control the alarm to sound based on the monitoring results of the vacuum gauge 5. For example, if the set vacuum degree value is X, when the vacuum degree value is less than X, the control system 1 will control the alarm to sound an alarm to remind the staff to check the placement of the door opening strip.

[0043] In another embodiment of this utility model, a heating component 6 is provided on the mold body 2, and the heating component 6 is electrically connected to the control system 1.

[0044] Furthermore, the control system 1 can control the vacuum pumping start and stop times.

[0045] Specifically, during the door opening strip assembly process, to ensure a firm connection between the ends of the door opening strips after assembly, a heating component 6 is also provided inside the mold body 2. Optionally, the heating component 6 is an electric heating tube installed in the first clamping block 21, the second clamping block 22, the third clamping block 23, and the fourth clamping block 24. The electric heating tube is connected to the control system 1 so that it can be controlled to open and close by the control system 1. With this configuration, the material of the door opening strip is softened by heating the mold body 2 at high temperature, and the film is vulcanized at the same time, thereby improving the assembly strength.

[0046] In practice, the vacuuming time is set by the control system 1. After the reading of the vacuum gauge 5 reaches the set value, the control system 1 controls the heating component 6 to start. When the set heating time (vacuuming time) for the door opening strip is reached, the vacuuming action is stopped, thereby releasing the adsorption on the hollow part of the door opening strip. At the same time, the control system 1 controls the heating component 6 to turn off to prevent the door opening strip from being in prolonged high-temperature contact with the inner wall of the groove 25 of the mold body 2, which could cause burns or indentations on the surface of the door opening strip.

[0047] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A new structure of sealing strip butt joint die, comprising a control system and two sets of symmetrical die bodies, and a groove suitable for products is arranged on each of the two die bodies, characterized in that, Both mold bodies are equipped with evacuation holes that communicate with the channel. The evacuation holes are connected to a vacuum source. The control system controls the vacuum source to evacuate and controls the movement of the two sets of mold bodies.

2. The novel sealing strip mating mold according to claim 1, characterized in that, The mold body includes a first clamping block, a second clamping block, a third clamping block, and a fourth clamping block, which together form a channel.

3. The novel sealing strip mating mold according to claim 1, characterized in that, The vacuum source is a vacuum pump, and the input end of the vacuum pump is connected to the evacuation port through a pipe.

4. The novel sealing strip mating mold according to claim 2, characterized in that, Both the first and third clamping blocks are fixed with adsorption components that support the hollow part of the product. The adsorption components are made of porous material and are adapted to the outer wall of the hollow part of the product. The air extraction hole is connected to the location of the adsorption component on the first or third clamping block.

5. A novel sealing strip mating mold according to claim 4, characterized in that, The adsorption component is made of breathable steel.

6. The novel sealing strip mating mold according to claim 4, characterized in that, The first and second clamping blocks each have cavities corresponding to the adsorption elements, and the air extraction holes are connected to their respective cavities.

7. The novel sealing strip mating mold according to claim 1, characterized in that, The air extraction port and the vacuum source are connected by a pipe, and a vacuum gauge is installed on the pipe. The vacuum gauge communicates with the control system.

8. A novel sealing strip mating mold according to claim 7, characterized in that, The control system has an alarm function. It receives the monitoring results of the vacuum gauge in real time and issues an alarm based on the results.

9. A novel sealing strip mating mold according to claim 1, characterized in that, The mold body is equipped with a heating component, which is electrically connected to the control system.

10. A novel sealing strip mating mold according to claim 1, characterized in that, The control system can control the start and stop times of vacuuming.

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