Extrusion forming device for rubber pipe

Abstract

The invention discloses an extrusion forming device for a rubber pipe, and relates to the technical field of rubber pipe processing, the extrusion forming device comprises an extrusion box, the inner side of the extrusion box is rotatably connected with a first rotating rod, the outer side of the first rotating rod is provided with a first spiral fan blade, and the side, away from a servo motor, of the extrusion box is provided with an extrusion forming opening; the extrusion forming opening is communicated with the extrusion box, a discharging pipe is installed on the upper portion of the extrusion box, the outer side of the discharging pipe is rotationally connected with a feeding box, the discharging pipe is communicated with the extrusion box, the extrusion box and the discharging pipe are jointly provided with a discharging assembly used for the extrusion box, and the discharging assembly is used for stable discharging of the discharging pipe to the extrusion box. And the discharging assembly comprises a fourth rotating rod and a third rotating rod which are arranged on the extrusion box, and through cooperative use of rotation of the discharging assembly and the feeding box, it can be ensured that materials enter the extrusion box at a stable and uniform speed, and blockage and stagnation of the materials in the feeding process are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of rubber tube processing, in particular to an extrusion molding device for a rubber tube. Background Art

[0002] Rubber hose refers to a pipe used for gas transportation, which is commonly used in gas welding, gas cutting, various gas shielded welding, plasma arc welding and cutting, etc. The rubber hose extrusion molding device is the key equipment for producing rubber hose. The mixed rubber material is fed into the extruder, and the rubber material is squeezed out through the movement of the screw in the extruder barrel. The extruder has a certain pressure, so that the rubber material passes through the extrusion port to form a continuous rubber hose.

[0003] After searching, the invention patent with Chinese patent number CN114083773A discloses a rubber tube extrusion molding device;

[0004] Compared with the prior art, the invention patent with Chinese patent number CN114083773A sets a movable plate in the loading barrel, sets a water tank on the movable plate, and uses the gravity of the water tank to automatically move the movable plate downward, so as to realize the material discharge by self-weight downward pressure, ensure the uniformity of material discharge and prevent the occurrence of air holes; the total weight of the water tank is adjusted by adjusting the amount of water injected into the water tank to achieve the appropriate downward pressure, which is more convenient to use.

[0005] However, in actual use, the above device discharges materials through the complementary gravity of the water tank. However, when the raw materials are at the bottom of the loading barrel, it is difficult for the water tank to act on them. Moreover, if the water in the water tank is unevenly distributed, it may cause uneven distribution of materials during the discharge process, resulting in local accumulation or sparseness. Therefore, a rubber tube extrusion molding device is proposed. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings in the prior art that when the raw materials are at the bottom of the loading barrel, the water tank is difficult to act on, and if the water in the water tank is unevenly distributed, it may lead to uneven distribution of materials during the unloading process, resulting in local accumulation or sparseness, and to propose a rubber tube extrusion molding device.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A rubber tube extrusion molding device, comprising an extrusion box, the inner side of the extrusion box is rotatably connected to a first rotating rod, the outer side of the first rotating rod is equipped with a first spiral blade, the extrusion box is provided with an extrusion molding port on a side away from a servo motor, the extrusion molding port and the extrusion box are connected, a discharge pipe is installed on the upper part of the extrusion box, the outer side of the discharge pipe is rotatably connected to a feeding box, the discharge pipe and the extrusion box are connected, a material discharge assembly for the extrusion box is jointly provided on the extrusion box and the discharge pipe, the material discharge assembly is used for the stable discharge of the extrusion box by the discharge pipe, the material discharge assembly comprises a fourth rotating rod and a third rotating rod arranged on the extrusion box, and a second spiral blade arranged on the inner side of the discharge pipe;

[0009] A first gear is installed at the end of the third rotating rod, and a second gear is installed on the outer side of the feeding box, and the second gear is meshed with the first gear. The fourth rotating rod is movably connected to the extrusion box, and a second bevel gear is slidably provided on the outer side of the first rotating rod. A first bevel gear is installed at one end of the fourth rotating rod close to the second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0010] The above technical solution further includes:

[0011] A second sliding groove is provided on the outer side of the first spiral blade, a second sliding block is slidably provided on the inner side of the second sliding groove, and the second sliding block is fixedly connected to the second bevel gear.

[0012] A first sliding groove is provided on the inner side of the extrusion box, a first sliding block is slidingly arranged on the inner side of the first sliding groove, the first sliding block is rotatably connected to the fourth rotating rod, a first connecting rod is installed on the side of the first sliding block close to the first rotating rod, a rotating ring is installed on the end of the first connecting rod away from the first sliding block, the rotating ring is rotatably connected to the second bevel gear, and the ratio of the extrusion speed and the feeding speed can be adjusted by adjusting the position of the fourth rotating rod and then replacing the fourth gear.

[0013] The size of the opening of the first sliding groove matches the size of the first sliding block, and the size of the opening of the second sliding groove matches the size of the second sliding block.

[0014] A shell is installed on the side of the extrusion box, a movable rod is installed on the side of the first sliding block close to the shell, the shell and the extrusion box are both slidably connected to the movable rod, a threaded rod is rotatably connected to the inner side of the shell, and the threaded rod is threadedly connected to the movable rod.

[0015] The fourth gear is movably connected to one end of the fourth rotating rod away from the first bevel gear. The fourth gear and the fourth rotating rod are threadedly connected to the fixing bolt. A third gear is installed on the outer side of the third rotating rod. The third gear is meshed with the fourth gear.

[0016] A support plate is installed on the inner side of the discharge pipe, and a second rotating rod is rotatably connected to the side of the support plate close to the extrusion box. The second spiral fan blade is installed on the outer side of the second rotating rod. A transmission belt is jointly provided between the second rotating rod and the third rotating rod to stir the raw materials inside the feeding box.

[0017] A second connecting rod is installed on the upper part of the extrusion box, a circular plate is installed at one end of the second connecting rod away from the extrusion box, a plurality of circular rods are installed at one end of the circular plate close to the feeding box, and the plurality of circular plates are evenly distributed on the inner side of the feeding box in a circular shape.

[0018] A protection box is installed on the upper part of the extrusion box, and the fourth gear, the third gear and the first gear are all located inside the protection box, which can protect the fourth gear, the third gear and the first gear.

[0019] Baffles are installed on both sides of the first sliding block, the size of the opening of the first sliding block is adapted to the size of the first sliding block, and the first sliding block is slidably connected to the first sliding groove to ensure the stability of the extrusion box.

[0020] The present invention has the following beneficial effects:

[0021] 1. In the present invention, the material feeding assembly and the self-rotation of the feeding box are used in coordination to ensure that the material enters the extrusion box at a stable and uniform speed, thereby avoiding the blockage and stagnation of the material during the feeding process, thereby improving the production efficiency, reducing the error caused by the fluctuation of the motor speed, and improving the stability and reliability of the equipment operation.

[0022] 2. In the present invention, by adjusting the fourth gear, the material flow rate can be accurately controlled according to the ratio of the extrusion speed and the feeding speed of different rubber raw materials during extrusion. This flexibility enables the production process to be adjusted according to different material properties and product requirements, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A first three-dimensional structural schematic diagram of a rubber tube extrusion molding device proposed by the present invention;

[0024] Figure 2 It is a schematic diagram of a second three-dimensional structure in the present invention;

[0025] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 4 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0027] Figure 5 for Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0028] Figure 6 for Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0029] Figure 7 for Figure 3 Enlarged schematic diagram of the structure at point D in the middle.

[0030] In the figure: 1, extrusion box; 2, servo motor; 3, first rotating rod; 4, first spiral blade; 5, extrusion molding port; 6, discharge pipe; 7, feeding box; 8, support plate; 9, second rotating rod; 10, second spiral blade; 11, third rotating rod; 12, transmission belt; 13, first gear; 14, second gear; 15, third gear; 16, first sliding groove; 17, first sliding block; 18, fourth rotating rod; 19, fourth gear; 20, fixing bolt; 21, first bevel gear; 22, second sliding groove; 23, second sliding block; 24, second bevel gear; 25, rotating ring; 26, first connecting rod; 27, housing; 28, movable rod; 29, threaded rod; 30, second connecting rod; 31, round plate; 32, round rod; 33, protective box; 34, baffle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] like Figure 1-Figure 7As shown, a rubber tube extrusion molding device proposed by the present invention comprises an extrusion box 1, the inner side of the extrusion box 1 is rotatably connected with a first rotating rod 3, the outer side of the first rotating rod 3 is provided with a first spiral blade 4, an extrusion molding port 5 is provided on the side of the extrusion box 1 away from the servo motor 2, the extrusion molding port 5 is connected with the extrusion box 1, a discharge pipe 6 is installed on the upper part of the extrusion box 1, the outer side of the discharge pipe 6 is rotatably connected with a feeding box 7, the discharge pipe 6 is connected with the extrusion box 1, a material discharge component for the extrusion box 1 is commonly provided on the extrusion box 1 and the discharge pipe 6, the material discharge component is used for the stable material discharge of the discharge pipe 6 to the extrusion box 1, and the material discharge component comprises a fourth rotating rod 18 and a third rotating rod 11 provided on the extrusion box 1, and a second spiral blade 10 provided on the inner side of the discharge pipe 6;

[0034] A first gear 13 is installed at the end of the third rotating rod 11, a second gear 14 is installed on the outer side of the feeding box 7, the second gear 14 is meshed with the first gear 13, the fourth rotating rod 18 is movably connected to the extrusion box 1, a second bevel gear 24 is slidably provided on the outer side of the first rotating rod 3, a first bevel gear 21 is installed at one end of the fourth rotating rod 18 close to the second bevel gear 24, the first bevel gear 21 is meshed with the second bevel gear 24, a shell 27 is installed on the side of the extrusion box 1, and the first sliding block 17 is close to the shell A movable rod 28 is installed on one side of the body 27, and the shell 27 and the extrusion box 1 are both slidably connected to the movable rod 28. A threaded rod 29 is rotatably connected to the inner side of the shell 27, and the threaded rod 29 is threadedly connected to the movable rod 28. The end of the fourth rotating rod 18 away from the first bevel gear 21 is movably connected to the fourth gear 19, and the fourth gear 19 and the fourth rotating rod 18 are threadedly connected to the fixing bolt 20. The third gear 15 is installed on the outer side of the third rotating rod 11, and the third gear 15 is meshed with the fourth gear 19.

[0035] A support plate 8 is installed on the inner side of the discharge pipe 6, and the support plate 8 is rotatably connected to the second rotating rod 9 on the side close to the extrusion box 1, and the second spiral fan blade 10 is installed on the outer side of the second rotating rod 9. A transmission belt 12 is commonly sleeved between the second rotating rod 9 and the third rotating rod 11, and a second connecting rod 30 is installed on the upper part of the extrusion box 1, and a circular plate 31 is installed on the end of the second connecting rod 30 away from the extrusion box 1, and a plurality of circular rods 32 are installed on the end of the circular plate 31 close to the feeding box 7, and the plurality of circular plates 31 are evenly distributed on the inner side of the feeding box 7 in a circular shape, and a protective box 33 is installed on the upper part of the extrusion box 1, and the fourth gear 19, the third gear 15 and the first gear 13 are all on the inner side of the protective box 33, and baffles 34 are installed on both sides of the first sliding block 17, and the size of the opening of the first sliding block 17 is adapted to the size of the first sliding block 17, and the first sliding block 17 is slidably connected to the first sliding groove 16.

[0036] In this embodiment, when extrusion molding is required, raw materials are first added through the feed box 7, and then the servo motor 2 can be started. After the servo motor 2 is started, it drives the first rotating rod 3 to rotate, and at the same time drives the first spiral blade 4 to rotate, and the first rotating rod 3 can drive the second bevel gear 24 to rotate when rotating. Since the second bevel gear 24 is meshed with the first bevel gear 21, the first rotating rod 3 can drive the fourth rotating rod 18 to rotate through the second bevel gear 24 and the first bevel gear 21 when rotating. Since the fourth gear 19 and the third gear 15 are meshed, the fourth rotating rod 18 drives the third rotating rod 11 to rotate through the fourth gear 19 and the third gear 15 when rotating. When the third rotating rod 11 rotates, it can drive the second rotating rod 9 to rotate through the transmission belt 12. When the second rotating rod 9 rotates, the material is unloaded through the force generated by the rotation of the second spiral blade 10;

[0037] And when the third rotating rod 11 drives the second rotating rod 9 to rotate, the first gear 13 can be driven to rotate. Since the first gear 13 is meshed with the second gear 14, the feeding box 7 can rotate when the second spiral fan blade 10 unloads the material, and then the multi-circular rod 32 acts on the raw material inside the feeding box 7, which helps to evenly distribute the material in the feeding box to avoid local accumulation or blockage. Then, it is extruded through the first spiral fan blade 4 and finally formed through the extrusion molding port 5 and then discharged. This combination can ensure that the material enters the extrusion box 1 at a stable and uniform speed, avoids blockage and stagnation of the material during the feeding process, thereby improving production efficiency.

[0038] Embodiment 2

[0039] like Figure 1-Figure 7 As shown, based on the first embodiment, a second sliding groove 22 is provided on the outer side of the first spiral blade 4, a second sliding block 23 is slidably provided on the inner side of the second sliding groove 22, the second sliding block 23 is fixedly connected to the second bevel gear 24, a first sliding groove 16 is provided on the inner side of the extrusion box 1, a first sliding block 17 is slidably provided on the inner side of the first sliding groove 16, the first sliding block 17 is rotatably connected to the fourth rotating rod 18, a first connecting rod 26 is installed on the side of the first sliding block 17 close to the first rotating rod 3, a rotating ring 25 is installed on the end of the first connecting rod 26 away from the first sliding block 17, the rotating ring 25 is rotatably connected to the second bevel gear 24, the size of the opening of the first sliding groove 16 is adapted to the size of the first sliding block 17, and the size of the opening of the second sliding groove 22 is adapted to the size of the second sliding block 23.

[0040] In this embodiment, the ratio of the extrusion speed and the feeding speed of different rubber raw materials during extrusion is not exactly the same. At this time, the rotation ratio of the first rotating rod 3 and the second rotating rod 9 can be adjusted to adapt to the use. First, the threaded rod 29 is rotated, and the active rod 28 is moved by the force generated by rotating the threaded rod 29. When the active rod 28 moves, it can drive the housing 27 to move along the first sliding groove 16, and through the blocking of the baffle 34, it is ensured that there is no opening in the first sliding groove 16. When the first sliding block 17 moves, it drives the fourth rotating rod 18 to move, and at the same time drives the rotating ring 25 and the second bevel gear 24 to move through the first connecting rod 26, so that the second bevel gear 24 moves along the second sliding groove 22 through the second sliding block 23. , so that the second bevel gear 24 and the first bevel gear 21 always remain in meshing state. After the fourth rotating rod 18 moves, the fourth gear 19 is no longer meshed with the third gear 15. At this time, the fixing bolt 20 can be rotated to release the fixation of the fourth rotating rod 18 and the fourth gear 19, and then a new fourth gear 19 is replaced according to the speed ratio, and rotated by the fixing bolt 20. At this time, the threaded rod 29 is reversed to move the fourth rotating rod 18 in the direction close to the third gear 15 until the new fourth gear 19 is meshed with the third gear 15, and the extrusion molding work can be continued. In this way, according to the ratio of the extrusion speed and the feeding speed of different rubber raw materials during extrusion, the adaptability of the device can be improved and the accuracy of the extrusion molding speed can be ensured.

[0041] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber tube extrusion molding device, comprising an extrusion box (1), characterized in that: The inner side of the extrusion box (1) is rotatably connected to a first rotating rod (3), and the outer side of the first rotating rod (3) is provided with a first spiral blade (4). The side of the extrusion box (1) away from the servo motor (2) is provided with an extrusion molding port (5), and the extrusion molding port (5) is connected to the extrusion box (1). A discharge pipe (6) is installed on the upper part of the extrusion box (1), and the outer side of the discharge pipe (6) is rotatably connected to a feeding box (7), and the discharge pipe (6) is connected to the extrusion box (1). A material discharge component for the extrusion box (1) is provided on the extrusion box (1) and the discharge pipe (6), and the material discharge component is used for the discharge pipe (6) to discharge the extrusion box (1) stably, and the material discharge component includes a fourth rotating rod (18) and a third rotating rod (11) provided on the extrusion box (1), and a second spiral blade (10) provided on the inner side of the discharge pipe (6); A first gear (13) is installed at the end of the third rotating rod (11), a second gear (14) is installed on the outer side of the feeding box (7), the second gear (14) and the first gear (13) are meshed with each other, the fourth rotating rod (18) is movably connected to the extrusion box (1), a second bevel gear (24) is slidably arranged on the outer side of the first rotating rod (3), a first bevel gear (21) is installed at one end of the fourth rotating rod (18) close to the second bevel gear (24), the first bevel gear (21) and the second bevel gear (24) are meshed with each other.

2. The rubber tube extrusion molding device according to claim 1, characterized in that: A second sliding groove (22) is provided on the outer side of the first spiral blade (4), a second sliding block (23) is slidably provided on the inner side of the second sliding groove (22), and the second sliding block (23) is fixedly connected to the second bevel gear (24).

3. The rubber tube extrusion molding device according to claim 2, characterized in that: A first sliding groove (16) is provided on the inner side of the extrusion box (1), a first sliding block (17) is slidably provided on the inner side of the first sliding groove (16), the first sliding block (17) is rotationally connected to a fourth rotating rod (18), a first connecting rod (26) is installed on the side of the first sliding block (17) close to the first rotating rod (3), a rotating ring (25) is installed on the end of the first connecting rod (26) away from the first sliding block (17), and the rotating ring (25) is rotationally connected to the second bevel gear (24).

4. The rubber tube extrusion molding device according to claim 3, characterized in that: The size of the opening of the first sliding groove (16) matches the size of the first sliding block (17), and the size of the opening of the second sliding groove (22) matches the size of the second sliding block (23).

5. The rubber tube extrusion molding device according to claim 4, characterized in that: A shell (27) is installed on the side of the extrusion box (1); a movable rod (28) is installed on the side of the first sliding block (17) close to the shell (27); the shell (27) and the extrusion box (1) are both slidably connected to the movable rod (28); a threaded rod (29) is rotatably connected to the inner side of the shell (27); the threaded rod (29) is threadedly connected to the movable rod (28).

6. The rubber tube extrusion molding device according to claim 1, characterized in that: A fourth gear (19) is movably connected to one end of the fourth rotating rod (18) away from the first bevel gear (21); the fourth gear (19) and the fourth rotating rod (18) are threadedly connected to a fixing bolt (20); a third gear (15) is installed on the outer side of the third rotating rod (11); the third gear (15) is meshed with the fourth gear (19).

7. The rubber tube extrusion molding device according to claim 1, characterized in that: A support plate (8) is installed on the inner side of the discharge pipe (6), and a second rotating rod (9) is rotatably connected to the side of the support plate (8) close to the extrusion box (1). The second spiral blade (10) is installed on the outer side of the second rotating rod (9), and a transmission belt (12) is commonly sleeved between the second rotating rod (9) and the third rotating rod (11).

8. The rubber tube extrusion molding device according to claim 1, characterized in that: A second connecting rod (30) is installed on the upper part of the extrusion box (1), a circular plate (31) is installed on the end of the second connecting rod (30) away from the extrusion box (1), and a plurality of circular rods (32) are installed on the end of the circular plate (31) close to the feeding box (7), and the plurality of circular plates (31) are evenly distributed on the inner side of the feeding box (7) in a circular shape.

9. The rubber tube extrusion molding device according to claim 6, characterized in that: A protection box (33) is installed on the upper part of the extrusion box (1), and the fourth gear (19), the third gear (15) and the first gear (13) are all located inside the protection box (33).

10. The rubber tube extrusion molding device according to claim 4, characterized in that: Baffles (34) are installed on both sides of the first sliding block (17); the size of the opening of the first sliding block (17) matches the size of the first sliding block (17); and the first sliding block (17) is slidably connected to the first sliding groove (16).

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