Silica gel foaming pipe extrusion molding device and molding method thereof

Abstract

The invention relates to a silica gel foaming pipe extrusion molding device and a molding method thereof. The silica gel foaming pipe extrusion molding device comprises a workbench, a frame body is fixedly installed at the top of the workbench, materials enter a material dissolving piece through a control valve pipe to be melted, the material dissolving piece is moved downwards through two first air cylinders to be in butt joint communication with an upper mold, and the materials fall between the upper mold and a lower mold to be shaped; a driving motor is started to drive an output end driving rod to rotate, so that a moving seat is driven to slide in a moving groove, a sliding plate drives a lower mold and the like to move out of a frame body, a second air cylinder is started to drive a lifting plate to move, the height of an upper mold is adjusted, and the upper mold is separated from the lower mold; and meanwhile, the hollow frame is lifted up through a pushing piece, a third air cylinder is started to drive a pushing strip on the top to move upwards and drive the hollow frame to move upwards to be separated from the lower mold, and the foaming pipe can be conveniently taken out, a rotating plate is adjusted to swing, the foaming pipe on the round pipe is taken out, and the rotating plate is installed.

Description

Technical Field

[0001] The invention relates to the technical field of silicone foam tube molding equipment, in particular to a silicone foam tube extrusion molding device and a molding method thereof. Background Art

[0002] Silicone sleeves offer strong sealing, waterproofing, oil resistance, temperature resistance (-60°C to 200°C), aging resistance, no discoloration or deformation, excellent flexibility, flexible bending, ozone resistance, voltage resistance, and aging resistance. They are widely used in aviation, electronics, petroleum, chemical, machinery, electrical appliances, medical, ovens, and food applications, particularly in electronic components like LED light strips and connectors. Traditional silicone sleeve molding equipment requires the mold tube to be removed for demolding, making it inconvenient and difficult to directly demold the molded silicone sleeve.

[0003] A silicone sleeve molding equipment and molding process (application number: 202110985081.5), including a driving motor and a mounting plate, the driving motor is fixedly arranged in the center of the side of the mounting plate, and an operating panel is fixedly arranged on the side wall of the mounting plate through a bracket; the side wall of the operating panel is provided with a radial slide groove in a circular array around its axis, and a slide plate is slidingly arranged in the slide groove, and a roller for squeezing the silicone tube raw material is rotatably arranged on the slide plate; the present invention avoids the existing silicone feeding device, and uses two rotating rollers to knead the silicone raw material, so that the heat of the silicone itself rises, resulting in the phenomenon of enhanced silicone fluidity, and the spacing between the two rollers themselves cannot be adjusted, and finally they all flow to the roller at the lower end, solving the problem that the external silicone may fall to the outer end of the feeding roller, resulting in pollution and waste of raw materials.

[0004] When the above patented silicone sleeve molding equipment is used to remove the mold, the mold tube needs to be taken out for demolding. The operation is not convenient enough and it is not convenient to directly demold the molded silicone sleeve. Therefore, we need to provide a silicone foam tube extrusion molding device and a molding method thereof. Summary of the Invention

[0005] The object of the present invention is to provide a silicone foam tube extrusion molding device and a molding method thereof, wherein the material enters the melt part through a control valve tube and melts, and the melt part is moved down by two first cylinders to connect with the upper mold, and the material falls between the upper mold and the lower mold for shaping, and the material wraps the round tube to form a silicone foam tube, and the driving motor is started to drive the output end driving rod to rotate, thereby driving the moving seat to slide in the moving groove, so that the sliding plate drives the lower mold to move out of the frame, and the second cylinder is started to drive the lifting plate to move, and the height of the upper mold is adjusted to separate from the lower mold. At the same time, the pushing part is used to lift the hollow frame, and the third cylinder is started to drive the top pushing bar to move upward and drive the hollow frame to move upward and separate from the lower mold, so as to facilitate the removal of the foaming tube, adjust the swing of the rotating plate, take out the foaming tube on the round tube, install the rotating plate, and fix the rotating plate with the adsorption part. When taking out the foaming tube, there is no need to remove the mold pipe fittings and then install them, which is more convenient. This solves the problem proposed in the above background technology that when the silicone sleeve molding equipment is removed from the mold, the mold pipe fittings need to be removed for demolding, the operation is not convenient enough, and it is not convenient to directly demold the molded silicone sleeve.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a silicone foam tube extrusion molding device, comprising a workbench, a frame fixedly installed on the top of the workbench, two first cylinders embedded in the top of the frame, the lower ends of the two first cylinders pass through the inner wall of the frame and are installed with dissolving parts, the top and bottom of the dissolving parts are installed with control valve tubes, a sliding plate is provided inside the frame, a driving mechanism for moving the sliding plate is installed inside the workbench, a lower mold is provided on the top of the sliding plate, an upper mold is provided on the top of the lower mold, and a material picking mechanism is installed on the surfaces of the upper mold and the lower mold, and a lifting mechanism used in conjunction with the material picking mechanism is provided on the top of the workbench.

[0007] Preferably, the material-taking mechanism includes a hollow frame, a circular tube, a fixed ring, a rotating plate and an adsorption part. The surfaces of the lower mold and the upper mold are provided with a hollow frame, and a circular tube is fixedly installed on the inner wall of the hollow frame. The surfaces of multiple circular tubes are integrally processed with a fixing ring, and the side adjacent to the upper mold and the lower mold is provided with a groove portion adapted to the fixing ring, and the bottom of the upper mold is fitted with the top of the lower mold, the surface of the hollow frame is hinged with a rotating plate, and the interior of the hollow frame is provided with an adsorption part for fixing the rotating plate.

[0008] Preferably, the adsorption member includes a groove and a magnetic block, the magnetic block is fixedly installed on one end of the rotating plate, the surface of the hollow frame is provided with a groove adapted to the magnetic block, and the hollow frame is set to be a metal frame.

[0009] Preferably, the lifting mechanism includes a second cylinder, a lifting plate and a pushing member. Two second cylinders are embedded on both sides of the workbench. Lifting plates are installed on the upper ends of the two second cylinders, and the lifting plates are fixedly installed on the surface of the upper mold.

[0010] Preferably, the pushing member includes two third cylinders embedded in the workbench, the upper ends of the two third cylinders are fixedly mounted with pushing bars, and round blocks are fixedly mounted on both sides of the hollow frame.

[0011] Preferably, the driving mechanism includes a driving motor, a driving rod, a movable seat, a fixed plate and a movable groove, the movable seats are fixedly installed on both sides of the bottom of the sliding plate, the interior of the workbench is provided with a movable groove adapted to the movable seat, the interior of the two movable seats are threadedly installed with driving rods, both ends of the two driving rods are rotatably installed with fixed plates, the fixed plates are fixedly installed on the bottom of the workbench, and one end of the two driving rods is provided with a driving motor.

[0012] Preferably, two pulleys are installed on both sides of the bottom of the sliding plate, and a sliding groove adapted to the pulleys is provided on the top of the workbench.

[0013] Preferably, two guide seats are fixedly installed on both sides of the dissolving piece, and guide rods are slidably installed inside the four guide seats. The upper ends of the guide rods are fixedly installed on the top of the inner wall of the frame, and the inner wall of the frame is installed with a support plate for supporting and fixing the guide rods.

[0014] Preferably, an arc-shaped groove adapted to the round block is provided on the top of the pushing strip.

[0015] A silicone foam tube extrusion molding method comprises the following steps:

[0016] Step 1: The material enters the melter through the control valve tube and melts. The melter is moved down by two first cylinders to connect with the upper mold. The material falls between the upper mold and the lower mold to be shaped. The material wraps the round tube to form a silicone foam tube.

[0017] Step 2: Start the driving motor to drive the output end driving rod to rotate, thereby driving the moving seat to slide in the moving groove, so that the sliding plate drives the lower mold and the like to move out of the frame;

[0018] Step 3: Start the second cylinder to move the lifting plate, adjust the height of the upper mold to separate it from the lower mold, and use the pusher to lift the hollow frame at the same time;

[0019] Step 4: Start the third cylinder to drive the top push bar to move upward and drive the hollow frame to move upward and separate from the lower mold to facilitate the removal of the foaming tube, adjust the swing of the rotating plate, remove the foaming tube on the round tube, install the rotating plate, and fix the rotating plate with an adsorption piece.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The material of the present invention enters the dissolving part through the control valve tube and melts, and the dissolving part is moved down and connected to the upper mold by two first cylinders, and the material falls between the upper mold and the lower mold for shaping, and the material wraps the round tube to form a silicone foam tube. The driving motor is started to drive the output end driving rod to rotate, thereby driving the movable seat to slide in the movable groove, so that the sliding plate drives the lower mold and the like to move out of the frame, and the second cylinder is started to drive the lifting plate to move, and the height of the upper mold is adjusted to separate from the lower mold. At the same time, the pushing part is used to lift the hollow frame, and the third cylinder is started to drive the top pushing bar to move upward and drive the hollow frame to move upward and separate from the lower mold, so as to facilitate the removal of the foaming tube, adjust the swing of the rotating plate, take out the foaming tube on the round tube, install the rotating plate, and fix the rotating plate with the adsorption part. When taking out the foaming tube, there is no need to remove the mold pipe fittings and then install it, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural perspective diagram of the present invention;

[0023] Figure 2 It is a bottom perspective view of the structure of the present invention;

[0024] Figure 3 It is a three-dimensional diagram of the lifting mechanism of the present invention;

[0025] Figure 4 It is a three-dimensional diagram of the material taking mechanism of the present invention;

[0026] Figure 5 It is a three-dimensional diagram of the driving motor of the present invention.

[0027] In the figure: 1. workbench; 2. frame; 3. first cylinder; 4. dissolving part; 5. control valve tube; 6. sliding plate; 7. driving mechanism; 71. driving motor; 72. driving rod; 73. moving seat; 74. fixing plate; 75. moving groove; 8. lifting mechanism; 81. second cylinder; 82. lifting plate; 83. pushing part; 831. third cylinder; 832. pushing bar; 833. round block; 9. taking mechanism; 91. hollow frame; 92. round tube; 93. fixing ring; 94. rotating plate; 95. adsorption part; 951. groove; 952. magnetic block; 10. upper mold; 11. lower mold; 12. pulley; 13. slide groove; 14. guide seat; 15. guide rod; 16. support plate; 17. arc groove. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] See also Figure 1-5 The present invention provides a technical solution: a silicone foam tube extrusion molding device, comprising a workbench 1, a frame 2 is fixedly installed on the top of the workbench 1, two first cylinders 3 are embedded in the top of the frame 2, the lower ends of the two first cylinders 3 pass through the inner wall of the frame 2 and are installed with a dissolving part 4, the top and bottom of the dissolving part 4 are installed with a control valve tube 5, a sliding plate 6 is provided inside the frame 2, a driving mechanism 7 for moving the sliding plate 6 is installed inside the workbench 1, a lower mold 11 is provided on the top of the sliding plate 6, an upper mold 10 is provided on the top of the lower mold 11, and a material picking mechanism 9 is installed on the surface of the upper mold 10 and the lower mold 11, and a lifting mechanism 8 used in conjunction with the material picking mechanism 9 is provided on the top of the workbench 1.

[0030] The material-taking mechanism 9 includes a hollow frame 91, a circular tube 92, a fixing ring 93, a rotating plate 94 and an adsorbent 95. The surfaces of the lower mold 11 and the upper mold 10 are provided with a hollow frame 91. A circular tube 92 is fixedly installed on the inner wall of the hollow frame 91. The surfaces of the plurality of circular tubes 92 are integrally processed with a fixing ring 93. A groove 951 adapted to the fixing ring 93 is provided on one side adjacent to the upper mold 10 and the lower mold 11. The bottom of the upper mold 10 is fitted with the top of the lower mold 11. A rotating plate 94 is hinged on the surface of the hollow frame 91. An adsorbent 95 for fixing the rotating plate 94 is installed inside the hollow frame 91.

[0031] In this embodiment, the material enters the dissolving part 4 through the control valve tube 5 and melts, and the dissolving part 4 is moved down by the two first cylinders 3 to connect with the upper mold 10, and the material falls between the upper mold 10 and the lower mold 11 to be shaped. The material wraps the circular tube 92 to form a silicone foam tube. The rotating plate 94 is adjusted to swing, the foam tube on the circular tube 92 is taken out, the rotating plate 94 is installed, and the rotating plate 94 is fixed by the adsorption member 95.

[0032] The adsorption member 95 includes a groove 951 and a magnetic block 952. The magnetic block 952 is fixedly mounted on one end of the rotating plate 94. The surface of the hollow frame 91 is provided with a groove 951 adapted to the magnetic block 952. The hollow frame 91 is configured as a metal frame.

[0033] Furthermore, the magnetic block 952 at one end of the rotating plate 94 is fixed and adsorbed in the groove 951 in the hollow frame 91 .

[0034] The lifting mechanism 8 includes a second cylinder 81, a lifting plate 82 and a pushing member 83. Two second cylinders 81 are embedded on both sides of the workbench 1. The upper ends of the two second cylinders 81 are installed with lifting plates 82, which are fixedly installed on the surface of the upper mold 10.

[0035] It is worth noting that the four second cylinders 81 are synchronous cylinders. When the second cylinders 81 are started, the lifting plate 82 is driven to move, and the height of the upper mold 10 is adjusted to separate it from the lower mold 11. At the same time, the pushing member 83 is used to lift the hollow frame 91 to facilitate the removal of the foaming tube.

[0036] The pushing member 83 includes two third cylinders 831 embedded in the workbench 1. The upper ends of the two third cylinders 831 are fixedly mounted with pushing bars 832. Round blocks 833 are fixedly mounted on both sides of the hollow frame 91.

[0037] It should be noted that the two third cylinders 831 are synchronous cylinders. Starting the third cylinders 831 drives the top push bar 832 to move upward and drives the hollow frame 91 to move upward and separate from the lower mold 11.

[0038] The driving mechanism 7 includes a driving motor 71, a driving rod 72, a movable seat 73, a fixed plate 74 and a movable groove 75. The movable seats 73 are fixedly installed on both sides of the bottom of the sliding plate 6. The interior of the workbench 1 is provided with a movable groove 75 adapted to the movable seat 73. The interior of the two movable seats 73 is threadedly installed with a driving rod 72. Both ends of the two driving rods 72 are rotatably installed with a fixed plate 74. The fixed plate 74 is fixedly installed at the bottom of the workbench 1. One end of the two driving rods 72 is provided with a driving motor 71;

[0039] Furthermore, the two drive motors 71 are synchronous motors. Starting the drive motor 71 drives the output end drive rod 72 to rotate, thereby driving the moving seat 73 to slide in the moving groove 75, so that the sliding plate 6 drives the lower mold 11 to move and adjust.

[0040] Two pulleys 12 are installed on both sides of the bottom of the sliding plate 6, and a sliding groove 13 adapted to the pulleys 12 is opened on the top of the workbench 1;

[0041] It should be noted that when the sliding plate 6 slides, the pulley 12 is driven to slide in the sliding groove 13 , thereby reducing the friction force on the sliding of the sliding plate 6 .

[0042] Two guide seats 14 are fixedly installed on both sides of the dissolving part 4, and guide rods 15 are slidably installed inside the four guide seats 14. The upper ends of the guide rods 15 are fixedly installed on the top of the inner wall of the frame 2, and the inner wall of the frame 2 is installed with a support plate 16 for supporting and fixing the guide rods 15;

[0043] Specifically, the movement of the dissolving member 4 will drive the guide seat 14 on the surface to slide on the guide rod 15, thereby enhancing the stability of the movement of the dissolving member 4.

[0044] The top of the push bar 832 is provided with an arc-shaped groove 17 adapted to the round block 833;

[0045] It is worth noting that the arc groove 17 on the top of the pushing bar 832 is used to clamp and fix the round block 833, which plays a role in limiting the lifting of the hollow frame 91.

[0046] A silicone foam tube extrusion molding method comprises the following steps:

[0047] Step 1: The material enters the melter 4 through the control valve tube 5 and melts. The melter 4 is moved downward by the two first cylinders 3 to connect with the upper mold 10. The material falls between the upper mold 10 and the lower mold 11 to be shaped. The material wraps the round tube 92 to form a silicone foam tube.

[0048] Step 2: Start the drive motor 71 to drive the output end drive rod 72 to rotate, thereby driving the movable seat 73 to slide in the movable groove 75, so that the sliding plate 6 drives the lower mold 11 and the like to move out of the frame 2;

[0049] Step 3: Start the second cylinder 81 to drive the lifting plate 82 to move. The lifting plate 82 is installed on the upper mold 10, and the upper mold 10 is adjusted in height to separate from the lower mold 11. At the same time, the hollow frame 91 is lifted using the pushing member 83;

[0050] Step 4: Start the third cylinder 831 to drive the top push bar 832 to move upward and drive the hollow frame 91 to move upward and separate from the lower mold 11 to facilitate the removal of the foaming tube, adjust the swing of the rotating plate 94, take out the foaming tube on the round tube 92, install the rotating plate 94, and fix the rotating plate 94 with the adsorption part 95.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A silicone foam tube extrusion molding device, comprising a workbench (1), characterized in that: A frame (2) is fixedly installed on the top of the workbench (1), and two first cylinders (3) are embedded in the top of the frame (2). The lower ends of the two first cylinders (3) pass through the inner wall of the frame (2) and are installed with a dissolving part (4). The top and bottom of the dissolving part (4) are both installed with a control valve tube (5). A sliding plate (6) is provided inside the frame (2), and a driving mechanism (7) for moving the sliding plate (6) is installed inside the workbench (1). A lower mold (11) is provided on the top of the sliding plate (6), and an upper mold (10) is provided on the top of the lower mold (11), and a material picking mechanism (9) is installed on the surface of the upper mold (10) and the lower mold (11). A lifting mechanism (8) used in conjunction with the material picking mechanism (9) is provided on the top of the workbench (1).

2. The silicone foam tube extrusion molding device according to claim 1, characterized in that: The material taking mechanism (9) comprises a hollow frame (91), a circular tube (92), a fixing ring (93), a rotating plate (94) and an adsorption member (95); the surfaces of the lower mold (11) and the upper mold (10) are provided with a hollow frame (91); a circular tube (92) is fixedly installed on the inner wall of the hollow frame (91); the surfaces of the plurality of circular tubes (92) are integrally processed with a fixing ring (93); and a groove (951) portion adapted to the fixing ring (93) is provided on one side adjacent to the upper mold (10) and the lower mold (11); the bottom of the upper mold (10) is fitted with the top of the lower mold (11); the surface of the hollow frame (91) is hinged with a rotating plate (94); and an adsorption member (95) for fixing the rotating plate (94) is installed inside the hollow frame (91).

3. The silicone foam tube extrusion molding device according to claim 2, characterized in that: The adsorption member (95) includes a groove (951) and a magnetic block (952); one end of the rotating plate (94) is fixedly mounted with the magnetic block (952); a groove (951) adapted to the magnetic block (952) is provided on the surface of the hollow frame (91); and the hollow frame (91) is configured as a metal frame.

4. The silicone foam tube extrusion molding device according to claim 3, characterized in that: The lifting mechanism (8) includes a second cylinder (81), a lifting plate (82) and a pushing member (83). Two second cylinders (81) are embedded on both sides of the workbench (1). Lifting plates (82) are installed on the upper ends of the two second cylinders (81). The lifting plates (82) are fixedly installed on the surface of the upper mold (10).

5. The silicone foam tube extrusion molding device according to claim 4, characterized in that: The pushing member (83) includes two third cylinders (831) embedded in the workbench (1), and the upper ends of the two third cylinders (831) are fixedly mounted with pushing bars (832), and both sides of the hollow frame (91) are fixedly mounted with round blocks (833).

6. The silicone foam tube extrusion molding device according to claim 1, characterized in that: The driving mechanism (7) comprises a driving motor (71), a driving rod (72), a movable seat (73), a fixed plate (74) and a movable groove (75); the movable seats (73) are fixedly mounted on both sides of the bottom of the sliding plate (6); the interior of the workbench (1) is provided with a movable groove (75) adapted to the movable seat (73); the interiors of the two movable seats (73) are both threadedly mounted with driving rods (72); both ends of the two driving rods (72) are rotatably mounted with fixed plates (74); the fixed plates (74) are fixedly mounted on the bottom of the workbench (1); and one end of the two driving rods (72) is provided with a driving motor (71).

7. The silicone foam tube extrusion molding device according to claim 6, characterized in that: Two pulleys (12) are installed on both sides of the bottom of the sliding plate (6), and a sliding groove (13) adapted to the pulleys (12) is opened on the top of the workbench (1).

8. The silicone foam tube extrusion molding device according to claim 1, characterized in that: Two guide seats (14) are fixedly installed on both sides of the dissolving part (4), and guide rods (15) are slidably installed inside the four guide seats (14). The upper ends of the guide rods (15) are fixedly installed on the top of the inner wall of the frame (2), and the inner wall of the frame (2) is installed with a support plate (16) for supporting and fixing the guide rods (15).

9. The silicone foam tube extrusion molding device according to claim 5, characterized in that: The top of the pushing bar (832) is provided with an arc-shaped groove (17) adapted to the round block (833).

10. A silicone foam tube extrusion molding method, characterized by: The following steps are involved: Step 1: The material enters the melter (4) through the control valve tube (5) and melts. The melter (4) is moved downward by the two first cylinders (3) to connect with the upper mold (10). The material falls between the upper mold (10) and the lower mold (11) to be shaped. The material wraps the round tube (92) to form a silicone foam tube. Step 2: Start the driving motor (71) to drive the output end driving rod (72) to rotate, thereby driving the moving seat (73) to slide in the moving groove (75), so that the sliding plate (6) drives the lower mold (11) and the like to move out of the frame (2); Step 3: Start the second cylinder (81) to drive the lifting plate (82) to move, and the lifting plate (82) is installed on the upper mold (10), adjust the height of the upper mold (10) to separate it from the lower mold (11), and use the pusher (83) to lift the hollow frame (91); Step 4: Start the third cylinder (831) to drive the top push bar (832) to move upward and drive the hollow frame (91) to move upward and separate from the lower mold (11) to facilitate the removal of the foaming tube, adjust the swing of the rotating plate (94), remove the foaming tube on the round tube (92), install the rotating plate (94), and fix the rotating plate (94) with the adsorption member (95).

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