A plastic pipe extrusion die with embedded color band

Abstract

The utility model provides a kind of plastic pipe extrusion die of embedded color band, including mould body, adjusting cavity is opened in the mould body, adjusting cavity is slidably sleeved with pressure cap in, extrusion pipe is slidably sleeved with in the pressure cap, the lower end of extrusion pipe is fixedly connected with extrusion head, the both sides inner wall of adjusting cavity is all opened with sliding slot, two the sliding slot is respectively connected with slide bar and screw rod, the outer wall of slide bar and screw rod is connected with sliding block, the pressure cap is fixedly connected between two sliding blocks, the upper end of mould body is rotatably connected with adjusting shaft, the stem of adjusting shaft is fixedly connected with gear one, the upper end of screw rod is fixedly connected with gear two, gear one is engaged with gear two, extrusion passageway is opened in the extrusion head, it solves the technical problem that current color band extrusion depth and width are not conveniently adjusted according to demand, and can be widely applied in the production and processing of embedded color band plastic pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic pipe production equipment, and in particular to a plastic pipe extrusion mold with an embedded colored strip. Background Technology

[0002] PVC and other plastic pipes are widely used in construction, agriculture, and other fields. At these construction sites, multiple water supply pipelines often operate simultaneously, crisscrossing and easily confused. In agricultural irrigation areas, these pipelines are also obscured by crops, making them difficult to locate and identify after installation. Since PVC and other plastic pipes are extruded in a single process, some are coated with a colored stripe on the outside to address the identification problem. While this method improves user visibility, the stripe tends to wear down and become illegible over time, resulting in poor identification.

[0003] The existing patent with publication number CN202399498U discloses an extrusion mold sleeve for an embedded colored strip plastic tube, including a mold body. The mold body has a circular mold hole and a side hole that communicates with the mold hole. An extrusion head that extends into the mold hole is provided in the side hole. An extrusion port is provided at the inner end of the extrusion head, and an extrusion channel that communicates with the extrusion port is provided at the outer end of the extrusion head. The extrusion channel communicates with the mold hole through the extrusion port.

[0004] The applicant found that although the above-mentioned patent can extrude ribbons that will not be damaged or faded due to wear, it is inconvenient to adjust the height and width of the extrusion nozzle, resulting in a relatively uniform embedding depth and width of the ribbon in the plastic tube, which is not convenient to adjust according to needs and has limited practicality. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the above-mentioned technology and provide a plastic tube extrusion mold with an embedded colored strip.

[0006] Therefore, this utility model provides a plastic tube extrusion mold with an embedded colored strip, including a mold body, an adjustment cavity is provided in the mold body, a pressure cap is slidably sleeved in the adjustment cavity, an extrusion tube is slidably sleeved in the pressure cap, an extrusion head is fixedly connected to the lower end of the extrusion tube, sliding grooves are provided on both sides of the inner wall of the adjustment cavity, a sliding rod and a lead screw are respectively connected in the two sliding grooves, sliders are connected to the outer walls of the sliding rod and the lead screw, the pressure cap is fixedly connected between the two sliders, an adjustment shaft is rotatably connected to the upper end of the mold body, a gear one is fixedly connected to the shaft body, a gear two is fixedly connected to the upper end of the lead screw, the gear one and the gear two mesh, and an extrusion channel is provided in the extrusion head;

[0007] An extrusion plate is provided at the opening of the extrusion channel. Adjustment blocks are slidably provided inside both sides of the extrusion plate. An adjustment screw is threadedly connected to one side of the adjustment block. The adjustment screw is rotatably connected to the extrusion plate. A locking screw is threadedly connected to the upper part of the extrusion plate. The lower end of the locking screw is pressed against the smooth outer wall of the adjusting screw shaft.

[0008] Preferably, the mold body has a mold hole in the middle, and the lower end of the extrusion head passes through the adjustment cavity and is inserted into the mold hole.

[0009] Preferably, the slide rod is fixedly connected between the upper and lower inner walls of the slide groove, the lead screw is rotatably connected between the upper and lower inner walls of the slide groove, one of the sliders is slidably connected to the outer wall of the slide rod, and the other slider is threadedly connected to the outer wall of the lead screw.

[0010] Preferably, the extrusion tube has a core hole, which is connected to the extrusion channel, and the extrusion channel is made of an L-shaped structure.

[0011] Preferably, a mounting screw is movably connected inside the extrusion plate, and the other end of the mounting screw is threaded into the extrusion head.

[0012] Preferably, the nuts of the adjusting screw and the locking screw are both embedded inside the body of the extrusion plate, and the height of the locking screw nut is less than the depth of the embedded groove.

[0013] Preferably, both adjustment blocks are slidably attached to the inner wall of the extrusion head on the side facing the extrusion channel, and the upper and lower outer walls of both adjustment blocks are slidably attached to the inner wall of the extrusion plate.

[0014] Preferably, the extrusion plate has limit grooves on both the upper and lower inner walls, a limit rod is fixedly connected in the limit groove, a limit block is slidably connected on the outer wall of the limit rod, and the adjustment block is fixedly connected to the outer wall of the limit block.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a plastic tube extrusion mold with an embedded colored strip, which has the following beneficial effects.

[0016] (1) By opening an adjustment cavity in the mold hole and opening a slide groove on both sides of the adjustment cavity, and then by setting a slide rod, a lead screw and a slider structure in the slide groove respectively, and by using the adjustment shaft set in the mold to drive the first gear to rotate, and then drive the meshing second gear to rotate to drive the lead screw to rotate, thereby controlling the lifting and lowering of the slider to drive the pressure cap to move, and then driving the extrusion head to move, thereby realizing the height adjustment of the extrusion channel, so as to adjust the depth position of the ribbon in the plastic tube according to the needs, and better meet the usage requirements;

[0017] (2) By setting an extrusion plate structure that is fixed by an installation screw at the opening of the extrusion channel, the locking screw can be loosened by a hex wrench first, and then the adjusting screw can be turned to control the relative movement of the two adjusting blocks on the extrusion plate to adjust the spacing, thereby realizing the width adjustment of the discharge port, thus realizing the width adjustment of the ribbon. Combined with the ribbon depth adjustment, it is more practical. Attached Figure Description

[0018] Figure 1 This is the front view of this utility model;

[0019] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0020] Figure 3 for Figure 1 Enlarged view of the structure at point B in the middle;

[0021] Figure 4 This is a structural diagram of the extrusion plate of this utility model;

[0022] The markings in the diagram are: 1. Mold body, 2. Mold hole, 3. Adjustment cavity, 4. Slide groove, 5. Slide rod, 6. Lead screw, 7. Slider, 8. Pressure cap, 9. Extrusion tube, 10. Core hole, 11. Extrusion head, 12. Extrusion channel, 13. Adjusting shaft, 14. Gear 1, 15. Gear 2, 16. Extrusion plate, 17. Limiting groove, 18. Limiting rod, 19. Limiting block, 20. Adjusting block, 21. Adjusting screw, 22. Locking screw, 23. Mounting screw. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Example 1:

[0025] Depend on Figures 1-4As shown, this utility model provides a plastic tube extrusion mold with an embedded colored strip, including a mold body 1. An adjustment cavity 3 is provided in the mold body 1. A pressure cap 8 is slidably sleeved in the adjustment cavity 3. An extrusion tube 9 is slidably sleeved in the pressure cap 8. An extrusion head 11 is fixedly connected to the lower end of the extrusion tube 9. Slide grooves 4 are provided on both sides of the inner wall of the adjustment cavity 3. A slide rod 5 and a lead screw 6 are respectively connected in the two slide grooves 4. A slider 7 is connected to the outer wall of the slide rod 5 and the lead screw 6. The pressure cap 8 is fixedly connected between the two sliders 7. An adjustment shaft 13 is rotatably connected to the upper end of the mold body 1. A gear 14 is fixedly connected to the shaft of the adjustment shaft 13. A gear 2 15 is fixedly connected to the upper end of the lead screw 6. The gear 14 and the gear 2 15 mesh. By rotating the adjustment shaft 13, the gear 14 is driven to rotate, which in turn drives the gear 2 15 to rotate, thereby driving the lead screw 6 to rotate. An extrusion channel 12 is provided in the extrusion head 11.

[0026] An extrusion plate 16 is provided at the opening of the extrusion channel 12. Adjusting blocks 20 are slidably provided inside both sides of the extrusion plate 16. An adjusting screw 21 is threadedly connected to one side of the adjusting block 20. The adjusting screw 21 is rotatably connected to the extrusion plate 16. A locking screw 22 is threadedly connected to the upper part of the extrusion plate 16. The lower end of the locking screw 22 is pressed against the smooth outer wall of the adjusting screw 21. By using a hexagonal wrench to engage the nut of the locking screw 22, it can be driven to rotate, thereby adjusting the pressure of the adjusting screw 21. By using a hexagonal wrench to engage the nut of the adjusting screw 21, it can be driven to rotate, thereby controlling the movement of the adjusting block 20.

[0027] The mold body 1 has a mold hole 2 in the middle. The lower end of the extrusion head 11 passes through the adjustment cavity 3 and is installed in the mold hole 2. The ribbon is discharged through the extrusion channel 12 opened in the extrusion head 11.

[0028] The slide rod 5 is fixedly connected between the upper and lower inner walls of the slide groove 4, and the lead screw 6 is rotatably connected between the upper and lower inner walls of the slide groove 4. One slider 7 is slidably connected to the outer wall of the slide rod 5, and the other slider 7 is threadedly connected to the outer wall of the lead screw 6. The slider 7 is raised and lowered by rotating the lead screw 6, and the slide rod 5 limits the other slider 7, so that the pressure cap 8 can move stably up and down in the adjustment cavity 3.

[0029] The extrusion tube 9 has a core hole 10, which is connected to the extrusion channel 12. The extrusion channel 12 is made of an L-shaped structure, which facilitates the extrusion of the ribbon along the extrusion direction of the plastic tube.

[0030] An installation screw 23 is movably connected inside the extrusion plate 16. The other end of the installation screw 23 is threaded into the extrusion head 11. The extrusion plate 16 is fixedly installed at the extrusion port of the extrusion channel 12 by the installation screw 23.

[0031] The nuts of both the adjusting screw 21 and the locking screw 22 are embedded inside the body of the extrusion plate 16, and the height of the nut of the locking screw 22 is less than the depth of the embedded groove. Since the locking screw 22 will move in a spiral motion relative to the extrusion plate 16 when adjusting it, it is necessary to keep the adjusted locking screw 22 in the embedded groove to avoid the rod body protruding from the extrusion plate 16, which would cause obstruction when the extrusion plate 16 is installed at the extrusion port.

[0032] Both adjusting blocks 20 are slidably attached to the inner wall of the extrusion head 11 on the side facing the extrusion channel 12, and the upper and lower outer walls of both adjusting blocks 20 are slidably attached to the inner wall of the extrusion plate 16 to prevent the extruded material from entering the gap between the adjusting block 20 and the extrusion head 11 or the extrusion plate 16.

[0033] Limiting grooves 17 are provided on the upper and lower inner walls of the extrusion plate 16. A limiting rod 18 is fixedly connected in the limiting groove 17. A limiting block 19 is slidably connected on the outer wall of the limiting rod 18. An adjusting block 20 is fixedly connected to the outer wall of the limiting block 19. By allowing the limiting block 19 to slide on the limiting rod 18, the movement of the adjusting block 20 can be limited, enabling it to move stably relative to the extrusion plate 16.

[0034] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A plastic tube extrusion mold with an embedded colored strip, comprising a mold body (1), characterized in that, The mold body (1) has an adjustment cavity (3) inside, a pressure cap (8) is slidably sleeved in the adjustment cavity (3), an extrusion tube (9) is slidably sleeved in the pressure cap (8), and an extrusion head (11) is fixedly connected to the lower end of the extrusion tube (9). Slide grooves (4) are opened on both sides of the inner wall of the adjustment cavity (3). Slide rods (5) and lead screws (6) are respectively connected in the two slide grooves (4). Slider blocks (7) are connected to the outer walls of the slide rods (5) and lead screws (6). The pressure cap (8) is fixedly connected between the two sliders (7). An adjustment shaft (13) is rotatably connected to the upper end of the mold body (1). Gear 1 (14) is fixedly connected to the shaft of the adjustment shaft (13). Gear 2 (15) is fixedly connected to the upper end of the lead screw (6). Gear 1 (14) and Gear 2 (15) mesh. An extrusion channel (12) is opened in the extrusion head (11). An extrusion plate (16) is provided at the opening of the extrusion channel (12). Adjustment blocks (20) are slidably provided on both sides of the extrusion plate (16). An adjustment screw (21) is threadedly connected to one side of the adjustment block (20). The adjustment screw (21) is rotatably connected to the extrusion plate (16). A locking screw (22) is threadedly connected to the upper part of the extrusion plate (16). The lower end of the locking screw (22) is pressed against the smooth outer wall of the adjusting screw (21).

2. The plastic tube extrusion mold with embedded colored stripe according to claim 1, characterized in that, The mold body (1) has a mold hole (2) in the middle, and the lower end of the extrusion head (11) passes through the adjustment cavity (3) and is installed in the mold hole (2).

3. The plastic tube extrusion mold with embedded colored stripe according to claim 1, characterized in that, The slide rod (5) is fixedly connected between the upper and lower inner walls of the slide groove (4), and the lead screw (6) is rotatably connected between the upper and lower inner walls of the slide groove (4). One of the sliders (7) is slidably connected to the outer wall of the slide rod (5), and the other slider (7) is threadedly connected to the outer wall of the lead screw (6).

4. The plastic tube extrusion mold with embedded colored stripe according to claim 1, characterized in that, The extrusion tube (9) has a core hole (10) inside, and the core hole (10) is connected to the extrusion channel (12). The extrusion channel (12) is made of an L-shaped structure.

5. The plastic tube extrusion mold with embedded colored stripe according to claim 1, characterized in that, An installation screw (23) is movably connected inside the extrusion plate (16), and the other end of the installation screw (23) is threaded into the extrusion head (11).

6. The plastic tube extrusion mold with embedded colored stripe according to claim 1, characterized in that, The nuts of the adjusting screw (21) and the locking screw (22) are both embedded in the body of the extrusion plate (16), and the height of the nut of the locking screw (22) is less than the depth of the embedded groove.

7. The plastic tube extrusion mold with embedded colored stripe according to claim 1, characterized in that, Both adjustment blocks (20) are slidably attached to the inner wall of the extrusion head (11) on the side facing the extrusion channel (12), and the upper and lower outer walls of both adjustment blocks (20) are slidably attached to the inner wall of the extrusion plate (16).

8. The plastic tube extrusion mold with embedded colored stripe according to claim 1, characterized in that, Limiting grooves (17) are provided on the upper and lower inner walls of the extrusion plate (16). A limiting rod (18) is fixedly connected in the limiting groove (17). A limiting block (19) is slidably connected on the outer wall of the limiting rod (18). The adjusting block (20) is fixedly connected to the outer wall of the limiting block (19).

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