Sealing gasket die with positioning device

Abstract

The utility model relates to a sealing gasket mold with a positioning device, which comprises an upper mold, a lower mold and two skeleton positioning blocks, the two skeleton positioning blocks are distributed along the width direction of a sealing gasket body, the skeleton positioning blocks are arranged on the lower mold, a plurality of clamping pipes are arranged on the skeleton positioning blocks, a support skeleton is clamped in the clamping pipes, and the positioning device is arranged on the support skeleton. The clamping pipe extends into the sealing gasket body, and the upper die is used for forming a cavity for molding the sealing gasket body with the lower die and the two framework positioning blocks. The method has the effects of reducing subsequent vulcanization procedures and improving the working efficiency.

Description

Technical Field

[0001] This application relates to the field of gasket molds, and more particularly to a gasket mold with a positioning device. Background Technology

[0002] In the multi-way valve of the thermal management system of new energy vehicles, the water valve sealing gasket is used to seal the opening and closing of the water valve. The failure of the water valve sealing gasket will directly lead to the failure of the multi-way valve, resulting in liquid leakage and instability of the working state of the multi-way valve, which in turn affects the normal operation of the thermal management system. The water valve sealing gasket is usually manufactured using a vulcanizing machine. The sealing gasket mold in the vulcanizing machine is used to shape the rubber that is introduced.

[0003] refer to Figure 1 The water valve sealing gasket includes a sealing gasket body 4, a PTFE sheet 5, and several support skeletons 6. The PTFE sheet 5 is located inside the sealing gasket body 4. Several support skeletons 6 are distributed along the length direction of the sealing gasket body 4. The length direction of the support skeletons 6 is parallel to the width direction of the sealing gasket body 4. The length of the support skeletons 6 is less than the width direction of the sealing gasket body 4. The support skeletons 6 are used to improve the strength of the water valve sealing gasket.

[0004] refer to Figure 2 Currently, the sealing gasket mold includes a lower mold 2 and an upper mold 1. Several mounting blocks 7 are provided on the lower mold 2. The mounting blocks 7 are used to place the support frame 6. At this time, the length of the support frame 6 exceeds the width of the water valve sealing gasket, and the PTFE sheet 5 is placed inside the lower mold 2.

[0005] After the product is vulcanized, the excessively long part of the support frame needs to be cut off. The cutting process is cumbersome and inefficient. Utility Model Content

[0006] In order to reduce subsequent vulcanization processes and improve work efficiency, this application provides a sealing gasket mold with a positioning device.

[0007] This application provides a sealing gasket mold with a positioning device, which adopts the following technical solution:

[0008] A sealing gasket mold with a positioning device includes an upper mold, a lower mold, and two skeleton positioning blocks. The two skeleton positioning blocks are distributed along the width direction of the sealing gasket body. The skeleton positioning blocks are disposed on the lower mold. The skeleton positioning blocks are provided with a plurality of retaining tubes. The supporting skeleton is engaged in the retaining tubes. The retaining tubes extend into the sealing gasket body. The upper mold is used to form a cavity with the lower mold and the two skeleton positioning blocks to form the shape of the sealing gasket body.

[0009] By adopting the above technical solution, the clamping tubes on the two skeleton positioning blocks are used to install the support skeleton. The clamping tubes can penetrate into the sealing gasket body, so that the original width of the sealing gasket body can be fixed in the mold. After the vulcanization operation is completed, the workers can pull the clamping tubes out from the support skeleton. At this time, the support skeleton that is shorter than the width of the sealing gasket body is located in the sealing gasket body, and there is no need to perform subsequent cutting operations, which reduces the subsequent vulcanization process and improves work efficiency.

[0010] Optionally, the lower mold has two snap-fit ​​slots, which correspond to two skeleton positioning blocks. The skeleton positioning blocks are provided with snap-fit ​​blocks, which snap-fit ​​with the snap-fit ​​slots.

[0011] By adopting the above technical solution, the snap-fit ​​groove on the lower mold is used to snap-fit ​​with the skeleton positioning block, so that the skeleton positioning block is fixed on the lower mold and the position of the support skeleton relative to the lower mold remains unchanged, which improves the consistency of the support skeleton position during the subsequent production of the sealing gasket body.

[0012] Optionally, the lower mold is provided with two support plates, and the support plates are provided with support grooves for cooperating with the clamping pipe.

[0013] By adopting the above technical solution, the support groove on the support plate is used to position the clamping pipe, so that the clamping pipe position is consistent. Since the support frame is a slender rod, the support groove is used to reduce the twisting of the slender support rod and improve the production quality of the subsequent sealing gasket body.

[0014] Optionally, the snap-fit ​​groove extends along the thickness direction of the lower mold, and the support groove extends along the thickness direction of the lower mold.

[0015] By adopting the above technical solution, the support frame is first installed on the two frame support blocks, and then the frame support blocks are installed on the lower mold. The frame support blocks are installed along the extension direction of the snap-fit ​​groove. During this process, the snap-fit ​​tube moves with the frame support block and enters the support groove. The structure of the lower mold is more reasonable and easier for the staff to operate.

[0016] Optionally, the lower mold is provided with two limiting blocks, the limiting blocks being used to abut against the two sides of the PTFE sheet along the length direction, and the support plate being used to abut against the two sides of the PTFE sheet along the width direction.

[0017] By adopting the above technical solution, PTFE sheets are used to improve the sealing performance, corrosion resistance and compression rebound rate of the gasket body. Before the vulcanization operation, the PTFE sheets are placed in the lower mold. The PTFE sheets are positioned by the support plate and the limiting block, so that the position of the PTFE sheets in the gasket body is consistent, thereby improving the quality of the gasket body.

[0018] Optionally, the upper mold includes a middle mold and an extrusion block. The upper surface of the middle mold is provided with a holding groove for holding the rubber material. The bottom of the holding groove is provided with a through hole that passes through the middle mold. The extrusion block is provided with a pressing block for squeezing the rubber material in the holding groove.

[0019] By adopting the above technical solution, the middle mold is used to cooperate with the lower mold. The rubber material is placed in the holding groove of the middle mold. When it is necessary to produce the sealing gasket body, the extrusion block moves towards the middle mold. The pressure block on the extrusion block cooperates with the holding groove. The rubber material in the holding groove enters between the middle mold and the lower mold through the through hole to form the sealing gasket body. The upper mold has a simple structure and is easy for workers to operate.

[0020] Optionally, the skeleton positioning block is provided with a positioning groove, which extends along the thickness direction of the lower mold, and the middle mold is provided with a positioning post, which is used to engage with the positioning groove.

[0021] By adopting the above technical solution, when producing the sealing gasket body, the middle mold first cooperates with the lower mold, and the positioning post on the middle mold engages with the positioning groove on the skeleton positioning block, thereby determining the position of the middle mold and the skeleton positioning block, and further improving the production quality of the sealing gasket body.

[0022] Optionally, the lower mold is provided with a grip groove to facilitate handling by workers.

[0023] By adopting the above technical solution, the grip groove makes it easier for workers to transfer or adjust the mold.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The retaining tubes on the two skeleton positioning blocks are used to engage the support skeleton, and the retaining tubes extend into the sealing gasket body. The retaining tubes are used to fix the support skeleton that is shorter than the width of the sealing gasket body.

[0026] 2. The limiting block is used to limit the position of the PTFE sheet. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the water valve sealing gasket.

[0028] Figure 2 This is a structural diagram of existing technology.

[0029] Figure 3 This is a schematic diagram of a sealing gasket mold with a positioning device.

[0030] Figure 4 yes Figure 3 Schematic diagram of the middle and lower mold.

[0031] Figure 5 yes Figure 3 A sectional view of the upper and middle mold.

[0032] Reference numerals: 1. Upper mold; 11. Middle mold; 111. Positioning pin; 112. Holding groove; 113. Through hole; 12. Extrusion block; 121. Pressing block; 2. Lower mold; 21. Protrusion; 22. Support plate; 221. Support groove; 23. Snap-fit ​​groove; 24. Restriction block; 25. Grip groove; 3. Frame positioning block; 31. Snap-fit ​​block; 32. Snap-fit ​​pipe; 33. Positioning groove; 4. Sealing gasket body; 5. PTFE sheet; 6. Support frame; 7. Mounting block. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 3 -Appendix Figure 5 This application will be described in further detail.

[0034] This application discloses a sealing gasket mold with a positioning device. (Refer to...) Figure 3 and Figure 4 A sealing gasket mold with a positioning device includes an upper mold 1, a lower mold 2, and two skeleton positioning blocks 3. The upper mold 1 and the lower mold 2 are both fixedly mounted on a vulcanizing machine. A protrusion 21 is fixedly mounted on the upper end face of the lower mold 2. The protrusion 21 is semi-cylindrical. Two support plates 22 are fixedly mounted on both ends of the protrusion 21. The two support plates 22 are coaxially mounted with the protrusion 21. Four support grooves 221 are opened on the side wall of the support plate 22. The support grooves 221 are distributed along the circumference of the support plate 22 and extend vertically downward. Two snap-fit ​​grooves 23 are opened on the lower mold 2. The two snap-fit ​​grooves 23 are distributed along the length direction of the protrusion 21. The snap-fit ​​grooves 23 are located on one side of the support plate 22 and extend vertically.

[0035] Reference Figure 3 and Figure 4 Two skeleton positioning blocks 3 correspond to two snap-fit ​​grooves 23. A snap-fit ​​block 31 is fixedly provided on the lower end face of the skeleton positioning block 3. The snap-fit ​​block 31 snaps into the snap-fit ​​groove 23. Four snap-fit ​​tubes 32 are fixedly provided on the skeleton positioning block 3. The length direction of the snap-fit ​​tubes 32 is parallel to the length direction of the protrusion 21. The four snap-fit ​​tubes 32 correspond one-to-one with the four support grooves 221. The snap-fit ​​tubes 32 abut against the bottom of the support grooves 221. Four support skeletons 6 correspond one-to-one with the four snap-fit ​​tubes 32. The two ends of the support skeletons 6 are respectively snapped into the snap-fit ​​tubes 32 corresponding to the two skeleton positioning blocks 3. The length of the support skeletons 6 is shorter than the distance between the two support plates 22. Two limiting blocks 24 are also fixedly provided on the lower mold 2. The two limiting blocks 24 are located on both sides of the protrusion 21. The limiting blocks 24 are used to limit the two sides of the PTFE sheet 5 in the length direction. The support plates 22 are used to limit the two sides of the PTFE sheet 5 in the width direction. Grip grooves 25 are opened on the opposite side walls of the lower mold 2. The grip grooves 25 make it easy for the staff to hold the lower mold 2.

[0036] Reference Figure 3 and Figure 5 The upper mold 1 includes a middle mold 11 and an extrusion block 12. The middle mold 11 is used to abut against the upper end surface of the lower mold 2. The middle mold 11, the lower mold 2, two skeleton positioning blocks 3, and two support plates 22 constitute the cavity of the sealing gasket body 4. Two positioning posts 111 are fixedly provided on the lower end surface of the middle mold 11. The two positioning posts 111 correspond to the two skeleton positioning blocks 3. The length direction of the positioning posts 111 is parallel to the thickness direction of the lower mold 2. The skeleton positioning blocks 3 The upper end face of the middle mold 11 is provided with a positioning groove 33, which is used to engage with the corresponding positioning post 111. The upper end face of the middle mold 11 is provided with a holding groove 112, which is used to hold the rubber material. The bottom of the holding groove 112 is provided with a through hole 113, which is connected to the lower end face of the middle mold 11. The lower end face of the extrusion block 12 is fixedly provided with a pressure block 121, which is used to make the rubber material in the holding groove 112 flow out from the through hole 113.

[0037] The implementation principle of a sealing gasket mold with a positioning device in this application embodiment is as follows: The operator first installs the upper mold 1 and the lower mold 2 onto the vulcanizing machine. The PTFE sheet 5 is placed on the lower mold 2. The PTFE sheet 5 is limited by the limiting block 24 and the support plate 22. Then, the support frame 6 is installed on the frame positioning block 3. Then, the snap-fit ​​block 31 on the frame positioning block 3 is snapped into the snap-fit ​​groove 23 of the lower mold 2, and the snap-fit ​​pipe 32 is engaged with the support groove 221 on the support plate 22. Then, the middle mold 11 is placed on the lower mold 2. The positioning pin 111 on the middle mold 11 is snapped into the positioning groove 33 on the frame positioning block 3. The rubber material is placed in the holding groove 112 of the middle mold 11. The vulcanizing machine drives the extrusion block 12 to move. The extrusion block 12 pushes the rubber material into the space between the lower mold 2 and the middle mold 11 through the through hole 113.

[0038] After vulcanization, the middle mold 11 and the skeleton positioning block 3 are removed in sequence. At this time, the support skeleton 6 is located inside the sealing gasket body 4, which does not require additional trimming and improves the production efficiency of the sealing gasket body 4.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sealing gasket mold with a positioning device, characterized in that: It includes an upper mold (1), a lower mold (2), and two skeleton positioning blocks (3). The two skeleton positioning blocks (3) are distributed along the width direction of the sealing gasket body (4). The skeleton positioning blocks (3) are set on the lower mold (2). Several clamping pipes (32) are provided on the skeleton positioning blocks (3). The supporting skeleton (6) is clamped in the clamping pipes (32). The clamping pipes (32) extend into the sealing gasket body (4). The upper mold (1) is used to form a cavity for the sealing gasket body (4) with the lower mold (2) and the two skeleton positioning blocks (3).

2. A sealing gasket mold with a positioning device according to claim 1, characterized in that: The lower mold (2) has two snap-fit ​​grooves (23), which correspond to two skeleton positioning blocks (3). The skeleton positioning blocks (3) are provided with snap-fit ​​blocks (31), which snap-fit ​​with the snap-fit ​​grooves (23).

3. A sealing gasket mold with a positioning device according to claim 2, characterized in that: The lower mold (2) is provided with two support plates (22), and the support plates (22) are provided with support grooves (221), which are used to cooperate with the clamping pipe (32).

4. A sealing gasket mold with a positioning device according to claim 3, characterized in that: The snap-fit ​​groove (23) extends along the thickness direction of the lower mold (2), and the support groove (221) extends along the thickness direction of the lower mold (2).

5. A sealing gasket mold with a positioning device according to claim 3, characterized in that: The lower mold (2) is provided with two limiting blocks (24), which are used to abut against the two sides of the PTFE sheet (5) along the length direction, and the support plate (22) is used to abut against the two sides of the PTFE sheet (5) along the width direction.

6. A sealing gasket mold with a positioning device according to claim 1, characterized in that: The upper mold (1) includes a middle mold (11) and an extrusion block (12). The upper surface of the middle mold (11) is provided with a holding groove (112) for holding the rubber material. The bottom of the holding groove (112) is provided with a through hole (113) that passes through the middle mold (11). The extrusion block (12) is provided with a pressing block (121) for squeezing the rubber material in the holding groove (112).

7. A sealing gasket mold with a positioning device according to claim 6, characterized in that: The skeleton positioning block (3) has a positioning groove (33) extending along the thickness direction of the lower mold (2). The middle mold (11) has a positioning post (111) for engaging with the positioning groove (33).

8. A sealing gasket mold with a positioning device according to claim 1, characterized in that: The lower mold (2) is provided with a grip groove (25) to facilitate handling by workers.

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