PP thick plate extrusion die

Abstract

The utility model discloses a PP thick plate extrusion die, and relates to the technical field of extrusion dies. The extrusion die comprises an extrusion die main body and an extruder screw cylinder connected with the rear end of the extrusion die main body, and further comprises a connecting stop block part fixedly arranged on the side wall of the extrusion die main body, an extrusion head is arranged at the front end of the extrusion die main body, and a transverse insertion rod part is fixedly arranged at one end, close to the connecting stop block part, of the extrusion head; the end face, close to the transverse insertion rod part, of the connecting stop block part is provided with an opening allowing the transverse insertion rod part to penetrate through, and the surface of the connecting stop block part is longitudinally provided with an insertion hole communicating with the opening. The front ends of the positioning insertion rod parts which are symmetrically distributed up and down are inserted into the positioning longitudinal holes through the elasticity of the connecting spring parts, then the transverse insertion rod part and the extrusion head are positioned and installed, and the positioning insertion rod parts are hidden in the inner side of the shifting open groove, so that the positioning insertion rod parts are not exposed; therefore, the situation of unstable connection of the extrusion head caused by mistaken touch can be effectively avoided.

Description

Technical Field

[0001] This utility model belongs to the field of extrusion die technology, and in particular relates to a PP thick plate extrusion die. Background Technology

[0002] PP board, also known as polypropylene board, is a semi-crystalline material. It is harder and has a higher melting point than PE. PP extruded sheets are lightweight, have uniform thickness, smooth and flat surface, good heat resistance, high mechanical strength, excellent chemical stability and electrical insulation, and are non-toxic. PP boards are widely used in chemical containers, machinery, electronics, electrical appliances, food packaging, medicine, decoration and water treatment. The practical temperature of PP boards can reach 100 degrees Celsius. PP boards can be produced by extrusion molds.

[0003] When extrusion dies used for PP sheets are used to extrude sheets of different thicknesses and widths, the extrusion head needs to be replaced. Existing detachable extrusion heads are usually reinforced with bolts, which makes disassembly more complicated, or they are disassembled by a quick-release lever. The lever is usually exposed, and the exposed lever is easy to accidentally touch, which can lead to unstable connection of the extrusion head. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a PP thick plate extrusion die, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a PP thick plate extrusion die, comprising an extrusion die body and an extruder screw barrel connected to the rear end of the extrusion die body, and further comprising:

[0007] The connecting block is fixed to the side wall of the extrusion die body. The front end of the extrusion die body is provided with an extrusion head. A horizontal insertion rod is fixed at one end of the extrusion head near the connecting block. An opening is opened on the end face of the connecting block near the horizontal insertion rod to allow the horizontal insertion rod to pass through. A insertion hole communicating with the opening is opened longitudinally on the surface of the connecting block. A positioning insertion rod is inserted into the insertion hole. A positioning longitudinal hole adapted to the bottom of the positioning insertion rod is opened on the top of the horizontal insertion rod. A toggle groove is opened on the surface of the connecting block.

[0008] Furthermore, the positioning insert and the toggle slot are symmetrically distributed vertically along the center of the connecting block.

[0009] Furthermore, the cross-sectional shape of the slotted part is trapezoidal.

[0010] Furthermore, a toggle groove is provided at the end of the positioning rod and on the side near the toggle slot, and a side protrusion is fixedly provided on the side wall of the positioning rod, and a connecting spring is fixedly provided on the surface of the side protrusion.

[0011] Furthermore, the connecting block part has a slot inside that allows the side protrusion to slide, the other end of the connecting spring part is fixed to the inner wall of the slot, and the end of the positioning rod part away from the actuating groove and the side near the horizontal rod part is a beveled part.

[0012] Furthermore, the front end of the extrusion die body is provided with an insertion slot that allows the extrusion head to be inserted laterally. A stabilizing block is fixedly provided at one end of the extrusion die body away from the connecting block part. A docking block is fixedly provided on the side wall of the extrusion head. A telescopic groove is provided on the surface of the stabilizing block. A docking insert plate is slidably connected in the telescopic groove.

[0013] Furthermore, the end face of the docking block near the stabilizing block is provided with a positioning hole that allows the docking strip plate to be inserted, the surface of the stabilizing block is provided with a displacement transverse groove that communicates with the telescopic groove, and the surface of the docking strip plate is fixed with a toggle block that extends into the displacement transverse groove.

[0014] This utility model has the following beneficial effects:

[0015] This invention employs a quick-release design, allowing the extruder head to slide laterally into the insertion slot, thus connecting the extrusion die body with the channel inside the extruder head. The symmetrically distributed positioning rods, connected by springs, insert their front ends into the positioning longitudinal holes, thereby positioning and installing the horizontal rods and the extruder head. The positioning rods are recessed into the groove of the shifting slot, preventing them from protruding and effectively avoiding accidental contact that could lead to unstable extruder head connection. Simultaneously, on the other side of the extruder head, a shifting block recessed into the displacement horizontal groove pushes the docking strip plate for trigger positioning, resulting in stronger connection stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is a side view of the present invention;

[0019] Figure 3 This is a split view of the horizontal insertion rod and the positioning insertion rod of this utility model;

[0020] Figure 4 This is a split view of the stabilizing block and the docking strip plate of this utility model;

[0021] Figure 5 This is an enlarged view of the slotted area of ​​this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Extrusion die body; 2. Extruder screw barrel; 3. Extrusion head; 4. Insertion slot; 5. Connecting stop; 6. Actuating slot; 7. Positioning insert; 8. Horizontal insert; 9. Positioning longitudinal hole; 10. Actuating groove; 12. Side convex plate; 13. Connecting spring; 14. Stabilizing stop; 15. Telescopic groove; 16. Connecting block; 17. Connecting insert plate; 18. Displacement transverse groove; 19. Actuating button. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figure 1-5As shown, this utility model is a PP thick plate extrusion die, including an extrusion die body 1 and an extruder screw barrel 2 connected to the rear end of the extrusion die body 1. The raw material enters the extruder through the feed port and is driven by the screw inside to enter the extrusion die body 1 from the end of the extruder screw barrel 2. An insertion slot 4 is opened at the front end of the extrusion die body 1, and an extrusion head 3 can be laterally slidably inserted into the slot 4. An extrusion hole is opened on the surface of the extrusion head 3, and the base hole of the extrusion head 3 is connected to the inside of the extrusion die body 1. After the raw material is discharged through the base hole, a PP thick plate is formed. The extrusion die body 1 has a connecting stop block 5 and a stabilizing stop block 14 fixed on both sides. The extrusion head 3 has a horizontal insertion rod 8 fixed at one end near the connecting stop block 5. The end face of the connecting stop block 5 near the horizontal insertion rod 8 has an opening that allows the horizontal insertion rod 8 to pass through. The surface of the connecting stop block 5 has a longitudinal insertion hole that communicates with the opening. A positioning insertion rod 7 is inserted into the insertion hole. The top of the horizontal insertion rod 8 has a positioning longitudinal hole 9 that matches the bottom of the positioning insertion rod 7. That is, when the extrusion head 3 slides laterally along the insertion slot 4, the horizontal insertion rod 9 at the front end of the extrusion head 3 is positioned at the bottom of the slot 4. The insert rod 8 is horizontally inserted into the opening on the side of the connecting stop 5. When the horizontal insert rod 8 is fully inserted into the opening, the positioning longitudinal hole 9 at the top of the horizontal insert rod 8 aligns with the insertion hole on the surface of the connecting stop 5. At this time, the positioning insert rod 7 is inserted vertically downward into the positioning longitudinal hole 9, which locks the position of the horizontal insert rod 8, preventing the extruder head 3 from disengaging. To facilitate the disassembly of the extruder head 3, a toggle slot 6 is provided on the surface of the connecting stop 5, and the toggle slot 6, the positioning insert rod 7, and the structure connected to the positioning insert rod 7 are symmetrically distributed. The slot 6 is connected to the slot insertion port of the connecting block part 5, and the cross-sectional shape of the slot 6 is trapezoidal. When the positioning rod part 7 is fully inserted into the positioning longitudinal hole 9, the top of the positioning rod part 7 is placed inside the insertion hole. That is, the positioning rod part 7 can only be moved from the slot 6. The end surface of the positioning rod part 7 is provided with a moving groove 10, and the moving groove 10 is at the horizontal position of the moving groove 6. The moving groove 10 can be pulled up at the moving groove 6 to disengage the positioning rod part 7 from the positioning longitudinal hole 9, and the horizontal rod part 8 can be pulled out.

[0026] The connecting stop part 5 has a slot inside that allows the side protrusion plate 12 to slide. One end of the connecting spring part 13 is fixed to the side protrusion plate 12, and the other end of the connecting spring part 13 is fixed to the inner wall of the slot. The side of the positioning rod part 7 away from the actuating groove 10 and close to the horizontal rod part 8 is a bevel. Under the elastic drive of the connecting spring part 13, the two sets of positioning rod parts 7 are in a position close to each other without external force. When the horizontal rod part 8 approaches, the front end of the horizontal rod part 8 will move to the bevel and push the two sets of positioning rod parts 7 open along the bevel. Finally, the two sets of positioning rod parts 7 can be inserted into the positioning longitudinal hole 9 by the elastic drive of the connecting spring part 13.

[0027] A stabilizing block 14 is fixedly installed at the end of the extrusion die body 1 away from the connecting block part 5. A docking block 16 is fixedly installed on the side wall of the extrusion head 3. A telescopic groove 15 is opened on the surface of the stabilizing block 14. A docking insert plate 17 is slidably connected in the groove of the telescopic groove 15. A positioning hole is opened on the end face of the docking block 16 near the stabilizing block 14 to allow the docking insert plate 17 to be inserted. A displacement transverse groove 18 communicating with the telescopic groove 15 is opened on the surface of the stabilizing block 14. A toggle button 19 extending into the displacement transverse groove 18 is fixedly installed on the surface of the docking insert plate 17. The surface of the docking insert plate 17 is connected to the inner wall of the groove of the telescopic groove 15 by a spring (not shown in the figure). The drive causes the mating insert plate 17 to protrude outward from the cavity of the telescopic groove 15. When the front end of the extrusion head 3 engages with the connecting stop block 5, the mating block 16 fixedly connected to the surface of the extrusion head 3 moves to a position on the same straight line as the stabilizing stop block 14. The positioning hole of the end face of the mating block 16 near the stabilizing stop block 14 is aligned with the telescopic groove 15. At this time, under the elastic drive of the spring, the mating insert plate 17 slides into the positioning hole of the mating block 16 along the hole of the telescopic groove 15, further reinforcing the extrusion head 3. The design of the displacement transverse groove 18 facilitates the operation of the toggle button 19. At the same time, the height of the toggle button 19 is less than the groove depth of the displacement transverse groove 18 to prevent accidental activation of the toggle button 19.

[0028] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A PP slab extrusion die comprising an extrusion die body (1) and an extruder screw barrel (2) connected to the rear end of the extrusion die body (1), characterized in that, Also include: The connecting block part (5) is fixed in the side wall of the extrusion die body (1), the front end of the extrusion die body (1) is provided with an extrusion head (3), the end of the extrusion head (3) close to the connecting block part (5) is fixed with a transverse plug rod part (8), the end face of the connecting block part (5) close to the transverse plug rod part (8) is provided with an opening allowing the transverse plug rod part (8) to pass through, the surface of the connecting block part (5) is longitudinally provided with a plug hole communicating with the opening, a positioning plug rod part (7) is inserted into the plug hole, the top of the transverse plug rod part (8) is provided with a positioning longitudinal hole (9) adapted to the bottom of the positioning plug rod part (7), the surface of the connecting block part (5) is provided with a push slot (6).

2. The PP thick slab extrusion die of claim 1, wherein, The positioning plug rod part (7) and the push slot (6) are symmetrically distributed along the center part of the connecting block part (5).

3. The PP thick slab extrusion die of claim 1, wherein, The slot section shape of the push slot (6) is trapezoidal.

4. The PP thick slab extrusion die of claim 1, wherein, The end of the positioning plug rod part (7) close to one side of the push slot (6) is provided with a push slot (10), the side wall of the positioning plug rod part (7) is fixed with a side tab (12), the surface of the side tab (12) is fixed with a connecting spring part (13).

5. A PP thick board extrusion die according to claim 4, characterized in that, The inside of the connecting block part (5) is provided with a slot allowing the side tab (12) to slide, the other end of the connecting spring part (13) is fixed with the inner wall of the slot, the end of the positioning plug rod part (7) away from the push slot (10) and close to one side of the transverse plug rod part (8) is a bevel part.

6. The PP slab extrusion die of claim 1, wherein, The front end of the extrusion die body (1) is provided with a plug slot (4) allowing the extrusion head (3) to be transversely inserted, the end of the extrusion die body (1) away from the connecting block part (5) is fixed with a stable block (14), the side wall of the extrusion head (3) is fixed with a butt block (16), the surface of the stable block (14) is provided with an expansion slot (15), the expansion slot (15) is slidably connected with a butt plug strip plate (17).

7. A PP thick board extrusion die according to claim 6, characterized in that, The end face of the butt block (16) close to the stable block (14) is provided with a positioning hole allowing the butt plug strip plate (17) to be inserted, the surface of the stable block (14) is provided with a displacement transverse slot (18) communicating with the expansion slot (15), the surface of the butt plug strip plate (17) is fixed with a push button (19) extending into the displacement transverse slot (18).

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