Mold for processing silicone rubber foaming pillow

Abstract

The utility model relates to the field of pillow processing equipment, and discloses a mould for processing a silicone rubber foaming pillow, which comprises a base and a top seat, the top of the base is fixedly connected with a lower mould, the bottom of the top seat is provided with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with an upper mould, the top of the lower mould is provided with a mould cavity, and one side of the top of the mould cavity is fixedly connected with an exhaust pipe. An air inlet pipe and a pressure gauge are fixedly connected to the lower portion of one side in the die cavity, and a guide part is arranged between the base and the top seat. According to the utility model, a modularized structure is adopted, the disassembly and replacement processes of the die are simplified, the precision and the service life of the die are ensured, the uniformity and the quality of products are improved, the reject ratio is reduced, and the safety of production operation can also be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pillow processing equipment, in particular to a mold for processing silicone rubber foam pillows. Background Technique

[0002] The filling material of the silicone rubber foam pillow is silicone rubber foam material. The silicone rubber foam material is a new material for household fields such as pillows and mattresses. Compared with traditional pillow materials, such as feathers, cotton, and ordinary sponges, it has excellent air permeability, antibacterial property, anti-allergy property, weather resistance, and lasting support, and can provide a better sleep experience. When the silicone rubber foam pillow is produced and processed, it only needs to be simply produced and processed by using a mold.

[0003] Since a large amount of gas is generated during the vulcanization of the silicone rubber foam material at high temperature, on the one hand, the pressure in the mold cavity is too high during processing, and there are safety hazards during demolding; on the other hand, when using the mold for processing, in order to prevent the upper mold from shifting and tilting when moving up and down, a guiding structure is usually set to ensure the alignment of the upper mold and the lower mold. However, due to the frequent up and down movement of the upper mold, the guiding structure is easily worn, resulting in an increase in the gap, and then the upper mold is skewed and it is difficult to align with the lower mold, thus affecting the practicability of the mold and the stability of product production. Summary of the Invention

[0004] The purpose of the utility model is to provide a mold for processing silicone rubber foam pillows to solve the problems in the prior art that a large amount of gas is generated due to the foaming of silicone rubber, resulting in the skew of the upper mold, the wear of the guiding structure, and inaccurate alignment.

[0005] Another purpose of the utility model is to further solve the problems that the pressure of the gas accumulated in the mold cavity is too high, resulting in uneven foaming pore diameters and unsafe demolding.

[0006] The utility model provides a mold for processing silicone rubber foam pillows, which includes a base and a top seat. A lower mold is fixedly connected to the top of the base. A hydraulic cylinder is installed at the bottom of the top seat. The output end of the hydraulic cylinder is fixedly connected to an upper mold. A mold cavity is opened at the top of the lower mold. An exhaust pipe is fixedly connected to one side of the top of the mold cavity. An air inlet pipe is fixedly connected to the lower part of one side in the mold cavity. A pressure gauge is fixedly connected to the side of the mold cavity opposite to the air inlet pipe. A guiding component is arranged between the base and the top seat;

[0007] The guiding component includes fixing plates fixedly connected to the periphery of the top of the base. A track groove is provided on one side of the fixing plate. Extension blocks are fixedly connected to both sides of the upper die. A sliding port is provided at the top of the extension block. Vertical plates are fixedly connected to both sides of the extension block. A groove is provided on one side of the vertical plate. A push rod is provided in the groove. One end of the push rod is fixedly connected to a moving block. A slot is provided at the top of the moving block. An insertion block is provided in the slot. A roller is fixedly connected to one side of the insertion block. A first spring is provided outside the push rod. The push rod is slidably connected to the groove. The insertion block is inserted into the slot. The roller is in contact with the inner wall of the track groove. The guiding component further includes an installation component for quickly replacing the roller.

[0008] Preferably, the installation component includes an installation cavity opened in the insertion block, a moving port opened at the top of the installation cavity, a sliding plate in the installation cavity, a push plate fixedly connected to the top of the sliding plate, an installation rod fixedly connected to one side of the sliding plate, a pressing groove on one side of the installation cavity, a pressing rod fixedly connected to the other side of the sliding plate, a second spring sleeved outside the pressing rod, and an installation hole on one side in the slot. The push plate is slidably connected to the moving port. The installation rod penetrates through the installation cavity and is slidably connected to the insertion block. The installation rod is inserted into the installation hole. The pressing rod is slidably connected to the pressing groove.

[0009] Preferably, an exhaust pipe is provided at the top of the mold cavity, and an air inlet pipe and a pressure gauge are provided at the lower part of the mold cavity.

[0010] Preferably, guiding grooves are respectively opened on both sides of the extension block. A guiding block is slidably connected in the guiding groove. The guiding block is fixedly connected to the moving block.

[0011] Preferably, a guide rod is fixedly connected in the moving port. A through hole is opened on the push plate. The guide rod is slidably connected to the through hole.

[0012] Preferably, a third spring is provided on one side of the guiding block. Both ends of the third spring are respectively fixedly connected to the guiding block and the inner wall of the guiding groove.

[0013] Preferably, a plurality of uniformly arranged receiving grooves are opened on one side in the sliding port. Sliding balls are provided in the receiving grooves.

[0014] Preferably, the cross-sectional shape of the groove is T-shaped, and the cross-sectional shape of the push rod is T-shaped.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By providing the base, the top seat and the guiding component, the movement of the upper die can drive the extension block to move on the fixing plate, and the roller rolls in the track groove, ensuring that the up-and-down movement of the upper die has a guiding effect, preventing the upper die from being skewed or offset, and ensuring the stable closing and separation of the upper die and the lower die. Even if the roller is worn, the compressed state of the first spring can ensure that the roller is always in contact with the track groove, maintaining the guiding stability.

[0017] 2. By setting up the installation component, pushing the push plate can cause the sliding plate to drive the installation rod to move. At the same time, the sliding plate can drive the second spring to deform. The insertion block is inserted into the slot, and the reset of the second spring can push the installation rod into the installation hole, quickly fixing the insertion block and the moving block, preventing the roller from being displaced, and enabling the quick replacement of severely worn rollers, improving work efficiency and the service life of the mold.

[0018] 3. By setting up the air inlet pipe, pressure gauge and exhaust pipe, the pressure in the mold cavity can be monitored in real time, the gas generated during the foaming process can be collected, and when the pressure exceeds the preset safety threshold, the exhaust is started to quickly and safely release the excess pressure. This structure not only effectively solves the safety hazards during the demolding process, but also improves the safety of the mold by controlling the pressure in the mold cavity, optimizes the vulcanization process of silicone rubber foaming, significantly improves the quality of silicone rubber foaming materials, and effectively increases the yield rate of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram provided by the present utility model;

[0020] Figure 2 is a front view provided by the present utility model;

[0021] Figure 3 is the three-dimensional sectional view at A-A in Figure 2 provided by the present utility model;

[0022] Figure 4 is the enlarged view at B in Figure 3 provided by the present utility model;

[0023] Figure 5 is the enlarged view at C in Figure 4 provided by the present utility model.

[0024] In the figure: 1, base; 11, top seat; 12, lower mold; 13, hydraulic cylinder; 14, upper mold; 15, mold cavity; 16, exhaust pipe; 17, air inlet pipe; 18, pressure gauge; 21, fixing plate; 22, track groove; 23, extension block; 24, sliding opening; 25, vertical plate; 26, groove; 27, push rod; 28, moving block; 29, slot; 30, insertion block; 31, roller; 32, first spring; 41, installation cavity; 42, moving opening; 43, sliding plate; 44, push plate; 45, installation rod; 46, pressure groove; 47, pressure rod; 48, second spring; 49, installation hole; 51, guide groove; 52, guide block; 61, guide rod; 62, through hole; 71, third spring; 81, receiving groove; 82, sliding ball. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 4 , the present utility model provides a mold for processing a silicone rubber foam pillow, which includes a base 1 and a top seat 11. A lower mold 12 is fixedly connected to the top of the base 1. A hydraulic cylinder 13 is installed at the bottom of the top seat 11. The output end of the hydraulic cylinder 13 is fixedly connected to an upper mold 14. A mold cavity 15 is opened at the top of the lower mold 12. An exhaust pipe 16 is fixedly connected to one side of the top of the mold cavity 15. An air inlet pipe 17 is fixedly connected to the lower part of one side in the mold cavity 15. A pressure gauge 18 is fixedly connected to the side of the mold cavity 15 opposite to the air inlet pipe 17. A guiding component is provided between the base 1 and the top seat 11.

[0027] The guiding component includes fixings 21 fixedly connected to the four peripheries of the top of the base 1, a track groove 22 on one side of the fixing plate 21, extension blocks 23 on both sides of the upper mold 14, sliding openings 24 at the tops of the extension blocks 23, vertical plates 25 fixedly connected to both sides of the extension blocks 23, grooves 26 on one side of the vertical plates 25, push rods 27 in the grooves 26, moving blocks 28 fixedly connected to one ends of the push rods 27, slots 29 at the tops of the moving blocks 28, inserting blocks 30 arranged in the slots 29, rollers 31 fixedly connected to one side of the inserting blocks 30, first springs 32 sleeved outside the push rods 27, and an installation component for quickly replacing the rollers 31. The push rods 27 are slidably connected to the grooves 26. The inserting blocks 30 are inserted into the slots 29. The rollers 31 are in contact with the inner wall of the track groove 22. Both ends of the first spring 32 are fixedly connected to the vertical plates 25 and the moving blocks 28 respectively. The fixing plates 21 are slidably connected to the sliding openings 24.

[0028] When the hydraulic cylinder 13 works, it drives the upper mold 14 to move downward, and the silicone rubber foam pillow can be produced and processed. The air inlet pipe 17 can facilitate air intake to pressurize the mold cavity and improve the pore size of the silicone rubber foam material. The pressure gauge 18 can facilitate the operator to perform pressure detection. After processing, the exhaust pipe 16 can facilitate the discharge of the air in the mold cavity 15 for safe demolding. When the upper mold 14 moves, it can drive the extension blocks 23 to move vertically, and then the rollers 31 can roll in the track groove 22 to guide the upper mold 14 and prevent the upper mold 14 from tilting, ensuring the stability of mold closing. The first spring 32 is initially in a compressed state and can push the rollers 31 to contact the inner wall of the track groove 22 when the rollers 31 are worn, ensuring the guiding stability. The cross-sectional shapes of the grooves 26 and the push rods 27 are both T-shaped, which can limit the push rods 27 to prevent the push rods 27 from disengaging from the grooves 26 during sliding.

[0029] Guide grooves 51 are respectively provided on both sides of the extension block 23. A guide block 52 is slidably connected in the guide groove 51. The guide block 52 is fixedly connected to the moving block 28. The moving block 28 can drive the guide block 52 to move horizontally, guiding the movement of the moving block 28, preventing the roller 31 from tilting, ensuring that the roller 31 can contact the track groove 22. A third spring 71 is provided on one side of the guide block 52. Both ends of the third spring 71 are fixedly connected to the guide block 52 and the inner wall of the guide groove 51 respectively. The guide block 52 can squeeze the third spring 71 to deform it. The elasticity of the third spring 71 can ensure that the roller 31 is in close contact with the track groove 22, preventing the roller 31 from detaching from the inner wall of the track 22. On one side of the sliding port 24, a plurality of accommodating grooves 81 arranged evenly are formed. A sliding ball 82 is provided in the accommodating groove 81. When the extension block 23 moves, the sliding ball 82 can roll in the accommodating groove 81, reducing the friction between the extension block 23 and the fixed plate 21, reducing wear, and improving the service life of the parts.

[0030] Please refer to Figures 1 to 5 ., the installation component includes an installation cavity 41 in the insertion block 30, a moving port 42 at the top of the installation cavity 41, a sliding plate 43 in the installation cavity 41, a push plate 44 at the top of the sliding plate 43, an installation rod 45 fixedly connected to one side of the sliding plate 43, a pressing groove 46 on one side in the installation cavity 41, a pressing rod 47 fixedly connected to the other side of the sliding plate 43, a second spring 48 outside the pressing rod 47, and an installation hole 49 on one side in the insertion slot 29. The push plate 44 is slidably connected to the moving port 42. The installation rod 45 passes through the installation cavity 41 and is slidably connected to the insertion block 30. The installation rod 45 is inserted into the installation hole 49. The pressing rod 47 is slidably connected to the pressing groove 46. Both ends of the second spring 48 are fixedly connected to the sliding plate 43 and the inner wall of the installation cavity 41 respectively. By pushing the push plate 44, the sliding plate 43 can be driven to move. The sliding plate 43 can drive the second spring 48 to deform, and at the same time can drive the installation rod 45 to move. The insertion block 30 can be inserted into the insertion slot 29. When the second spring 48 resets, it can drive the installation rod 45 to be inserted into the installation hole 49, installing and fixing the roller 31 and the moving block 28, thereby preventing the roller 31 from shifting and ensuring stable guiding of the upper die 14. In addition, the roller 31 with serious wear can be quickly replaced. A guide rod 61 is fixedly connected in the moving port 42. A through hole 62 is formed on the push plate 44. The guide rod 61 is slidably connected to the through hole 62. The guide rod 61 can guide the push plate 44, effectively preventing the push plate 44 from tilting during movement, and thus improving the movement stability of the installation rod 45.

[0031] Working principle: During operation, first fix the roller 31, push the push plate 44 and the moving block 28, so that the moving block 28 drives the guiding block 52 to move and compresses the first spring 32 to deform it. The movement of the guiding block 52 will deform the third spring 71. The movement of the push plate 44 can drive the sliding plate 43 to move, and the movement of the sliding plate 43 deforms the second spring 48, and at the same time drives the mounting rod 45 to move into the mounting cavity 41. Then insert the insertion block 30 into the slot 29. At this time, the mounting rod 45 is aligned with the mounting hole 49, and the roller 31 contacts the track groove 22. Release the push plate 44, and the second spring 48 resets, driving the mounting rod 45 to reset and insert into the mounting hole 49, quickly fixing the roller 31 and the moving block 28.

[0032] When the hydraulic cylinder 13 works, the upper die 14 moves downward, and the roller 31 rolls in the track groove 22, effectively reducing the friction force and guiding the upper die 14 to prevent it from skewing and offsetting. When the roller 31 is worn, the thrust generated by the deformation of the first spring 32 and the third spring 71 can ensure that the roller 31 always contacts the inner wall of the track groove 22, thus ensuring the guiding stability of the upper die 14. When the roller 31 needs to be replaced, push the push plate 44 again to disengage the mounting rod 45 from the mounting hole 49, and then the roller 31 can be removed and a new roller 31 can be replaced. The above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The silicone rubber foam material in the present invention contains the following components: 100 parts of methyl vinyl silicone rubber compound, 10 - 100 parts of hydroxyl silicone oil, 5 - 10 parts of cross-linking agent, 1 - 5 parts of maleic anhydride inhibitor, 0.1 - 5 parts of platinum curing agent, 10 - 60 parts of white carbon black, and 1 - 10 parts of antibacterial agent. After uniformly stirring these foam materials, put them into a processing mold, control the vulcanization temperature at 60 - 90 °C, and control the secondary vulcanization temperature at 150 - 200 °C.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold for processing a silicone rubber foam pillow, comprising a base (1) and a top seat (11), characterized in that: The top of the base (1) is fixedly connected to a lower mold (12), the bottom of the top base (11) is equipped with a hydraulic cylinder (13), the output end of the hydraulic cylinder (13) is fixedly connected to an upper mold (14), the top of the lower mold (12) is provided with a mold cavity (15), one side of the top of the mold cavity (15) is fixedly connected to an exhaust pipe (16), the lower part of one side in the mold cavity (15) is fixedly connected to an air intake pipe (17), the side of the mold cavity (15) opposite to the air intake pipe (17) is fixedly connected to a pressure gauge (18), and a guide component is provided between the base (1) and the top base (11); The guide component comprises a fixed plate (21) respectively fixedly connected to the top of the base (1) on all sides, a track groove (22) is provided on one side of the fixed plate (21), an extension block (23) is fixedly connected to both sides of the upper mold (14), a sliding opening (24) is provided on the top of the extension block (23), and vertical plates (25) are fixedly connected to both sides of the extension block (23), a groove (26) is provided on one side of the vertical plate (25), a push rod (27) is provided in the groove (26), one end of the push rod (27) is fixedly connected to a moving block (28), a slot (29) is provided on the top of the moving block (28), an insert block (30) is provided in the slot (29), a roller (31) is fixedly connected to one side of the insert block (30), a first spring (32) is provided on the outer side of the push rod (27), the push rod (27) is slidably connected to the groove (26), the insert block (30) is plugged into the slot (29), and the roller (31) contacts the inner wall of the track groove (22), and the guide component further comprises a mounting component for quickly replacing the roller (31).

2. The mold for processing a silicone rubber foam pillow according to claim 1, characterized in that: The mounting component comprises a mounting cavity (41) provided in the plug block (30), a movable opening (42) at the top of the mounting cavity (41), a sliding plate (43) in the mounting cavity (41), a push plate (44) fixedly connected to the top of the sliding plate (43), a mounting rod (45) fixedly connected to one side of the sliding plate (43), a pressing groove (46) at one side of the mounting cavity (41), a pressing rod (47) fixedly connected to the other side of the sliding plate (43), a second spring (48) sleeved on the outside of the pressing rod (47), and a mounting hole (49) provided on one side of the slot (29); the push plate (44) is slidably connected to the movable opening (42); the mounting rod (45) passes through the mounting cavity (41) and is slidably connected to the plug block (30); the mounting rod (45) is plugged into the mounting hole (49); and the pressing rod (47) is slidably connected to the pressing groove (46).

3. The mold for processing a silicone rubber foam pillow according to claim 1, characterized in that: The extension block (23) is provided with guide grooves (51) on both sides thereof, guide blocks (52) are slidably connected in the guide grooves (51), and the guide blocks (52) are fixedly connected to the moving block (28).

4. The mold for processing a silicone rubber foam pillow according to claim 2, characterized in that: A guide rod (61) is fixedly connected inside the moving opening (42), a through opening (62) is opened on the push plate (44), and the guide rod (61) is slidably connected to the through opening (62).

5. The mold for processing a silicone rubber foam pillow according to claim 3, characterized in that: A third spring (71) is provided on one side of the guide block (52), and two ends of the third spring (71) are respectively fixedly connected to the guide block (52) and the inner wall of the guide groove (51).

6. The mold for processing a silicone rubber foam pillow according to claim 1, characterized in that: An exhaust pipe (16) is fixedly connected to one side of the top of the mold cavity (15), an air intake pipe (17) is fixedly connected to the lower part of one side of the mold cavity (15), and a pressure gauge (18) is fixedly connected to the side of the mold cavity (15) opposite to the air intake pipe (17).

7. The mold for processing a silicone rubber foam pillow according to claim 1, characterized in that: A plurality of evenly arranged receiving grooves (81) are provided on one side of the sliding opening (24), and sliding balls (82) are provided in the receiving grooves (81).

8. The mold for processing a silicone rubber foam pillow according to claim 1, characterized in that: The cross-sectional shape of the groove (26) is T-shaped, and the cross-sectional shape of the push rod (27) is T-shaped.

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