Die core structure of double-color or three-color hollow grid plate extrusion die head

Abstract

The utility model provides a die core structure of a double-color or three-color hollow grid plate extrusion die head, which comprises a die core body, an upper die lip, a first extrusion channel, a lower die lip and a second extrusion channel, the die core body comprises a connecting part and an extrusion part, the upper part of the front end of the extrusion part is provided with a first transverse discharge chute, and the lower part of the front end of the extrusion part is provided with a second transverse discharge chute; a series of vertical discharging grooves are formed in the front end of the extrusion part, the first transverse discharging groove, the second transverse discharging groove and the vertical discharging grooves cut the front end of the extrusion part into a plurality of rectangular extrusion areas, and feeding grooves are formed in the top face and the bottom face of the rear side of the extrusion part in the breadth direction correspondingly. The first extrusion channel, the feeding groove, the vertical discharging groove and the second extrusion channel are communicated, the connecting part is provided with three through air holes, the three air holes extend forwards in the breadth direction to form a series of air hole channels, and the front end of each air hole channel correspondingly penetrates to one rectangular extrusion area. The double-color or three-color hollow grid plate can be smoothly extruded and produced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of extrusion die, in particular to a die core structure of a double or triple color hollow lattice plate extrusion die. BACKGROUND

[0002] Hollow lattice plate is commonly used in construction, decoration or other applications requiring lightweight and high strength materials. It allows the injection of color-containing plastic, through the design of the die, so that the final product has a double or triple color multi-level structure. The conventional hollow die does not meet the production needs. SUMMARY

[0003] In view of the above problems, the present application aims to provide a die core structure of a double or triple color hollow lattice plate extrusion die, which can smoothly extrude double or triple color hollow lattice plates.

[0004] The technical scheme of the present application is a die core structure of a double or triple color hollow lattice plate extrusion die, characterized in that it comprises a die core body corresponding to the width of the die body, the top surface of the die core body forms a first extrusion channel with the upper die lip, the bottom surface of the die core body forms a second extrusion channel with the lower die lip, the die core body comprises a connecting part at the rear side connected to the die body and an extrusion part at the front side, a first transverse discharge slot is provided at the upper part of the front end of the extrusion part, a second transverse discharge slot is provided at the lower part of the front end of the extrusion part, a series of vertical discharge slots are provided at the front end of the extrusion part, the vertical discharge slots are uniformly distributed along the width direction of the extrusion part, the first transverse discharge slot, the second transverse discharge slot and the vertical discharge slot cut the front end of the extrusion part into a plurality of rectangular extrusion zones, the top surface and the bottom surface of the rear side of the extrusion part are respectively provided with feed slots along the width direction, the first extrusion channel, the feed slots, the vertical discharge slots and the second extrusion channel are connected, three gas holes are provided on the connecting part, each of the three gas holes extends forward along the width direction to form a series of gas hole channels, and each gas hole channel corresponds to a rectangular extrusion zone at the front end.

[0005] Preferably, the left and right ends of the first and second transverse discharge slots are provided with guide strips arranged in front and back for guiding the flow of raw materials.

[0006] Preferably, the rear side of the connecting part is provided with two rows of screw thread connection holes, and screws pass through the screw thread connection holes to fixedly connect the die core body to the die.

[0007] Preferably, the connecting part and the extrusion part are both inclined surfaces with a larger rear side and a smaller front side, and the taper of the inclined surface of the extrusion part is smaller than the taper of the inclined surface of the connecting part.

[0008] Preferably, the connecting part is provided with a first feed channel communicating with the first transverse discharge slot and a second feed channel communicating with the second transverse discharge slot at the upper and lower positions respectively.

[0009] The present application can extrude the double or three color hollow lattice board smoothly, each rectangular extrusion area is matched with blowing to ensure that each lattice does not adhere to each other, so as to ensure the appearance and quality requirements of the product. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present application;

[0011] Figure 2 It is a structural schematic diagram of the present application; Figure 1 It is a structural schematic diagram of the core of the middle die;

[0012] Figure 3 It is a structural schematic diagram of the present application; Figure 2 It is a structural schematic diagram of the present application;

[0013] Figure 4 It is a structural schematic diagram of the present application;

[0014] Figure 5 It is a structural schematic diagram of the present application;

[0015] Figure 6 It is a structural schematic diagram of the present application;

[0016] Figure 7 It is a structural schematic diagram of the present application;

[0017] Wherein: 1 - core; 11 - connecting part; 111 - air hole; 112 - air hole channel; 113 - threaded connection hole; 114 - first feeding channel; 115 - second feeding channel; 12 - extrusion part; 121 - first transverse discharge groove; 122 - second transverse discharge groove; 123 - vertical discharge groove; 124 - rectangular extrusion area; 125 - feeding groove; 126 - guide strip; 2 - upper die lip; 3 - first extrusion channel; 4 - lower die lip; 5 - second extrusion channel. DETAILED DESCRIPTION

[0018] The present application will be further described in detail below in combination with the drawings.

[0019] As Figures 1 to 7As shown, the present application provides a double or three color hollow lattice plate extrusion die core structure, which comprises a die core body 1 corresponding to the die body width, the top surface of the die core body 1 and the upper die lip 2 form a first extrusion channel 3, the bottom surface of the die core body 1 and the lower die lip 4 form a second extrusion channel 5, the die core body 1 comprises a connecting part 11 connected with the die body at the rear side and an extrusion part 12 at the front side, the upper part of the front end of the extrusion part 12 is provided with a first transverse discharge groove 121, the lower part of the front end of the extrusion part 12 is provided with a second transverse discharge groove 122, the front end of the extrusion part 12 is provided with a series of vertical discharge grooves 123, the vertical discharge grooves 123 are uniformly distributed along the width direction of the extrusion part 12, the first transverse discharge groove 121, the second transverse discharge groove 122 and the vertical discharge groove 123 cut the front end of the extrusion part 12 into a plurality of rectangular extrusion areas 124, the top surface and the bottom surface of the rear side of the extrusion part 124 are respectively provided with a feeding groove 125 along the width direction, the first extrusion channel 3, the feeding groove 125, the vertical discharge groove 123 and the second extrusion channel 5 are communicated, the connecting part 11 is provided with three gas holes 111 penetrating through the left and right sides thereof, the three gas holes 111 respectively extend forward along the width direction to form a series of gas hole channels 112, and the front end of each gas hole channel 112 corresponds to penetrate into one rectangular extrusion area 124.

[0020] In the above scheme, the left and right ends of the first transverse discharge groove 121 and the second transverse discharge groove 122 are respectively provided with front and rear guide strips 126 for guiding the flow of raw materials, which separate different raw materials from each other, especially the colored raw materials and the colorless raw materials, to prevent mixing and affect the quality of the product.

[0021] Specifically, the rear side of the connecting part 11 is provided with two rows of threaded connection holes 113, and a screw passes through the threaded connection hole 113 to fixedly connect the die core body 1 to the die head.

[0022] Specifically, the connecting part 11 and the extrusion part are both inclined surfaces with large rear and small front, and the taper of the inclined surface of the extrusion part 12 is smaller than the taper of the inclined surface of the connecting part 11.

[0023] Further, the connecting part 11 is provided with a first feeding channel 114 and a second feeding channel 115 at the upper and lower positions respectively, which communicate with the first transverse discharge groove 121 and the second transverse discharge groove 122 respectively.

[0024] The present application cuts the front end of the extrusion part 12 into several rectangular extrusion areas 124 by setting the first transverse discharge slot 121, the second transverse discharge slot 122 and the vertical discharge slot 123 on the mold core body 1, cooperating with the first extrusion channel 3 and the second extrusion channel 5, forming four independent transverse channels and a series of equidistantly arranged vertical channels. The colorless raw material is extruded from the first extrusion channel 3 and the second extrusion channel 5 to form the top layer and the bottom layer of the hollow lattice board product. The colored raw material is extruded from the first transverse discharge slot 121 and the second transverse discharge slot 122 to form the middle two layers of the intermediate layer of the transverse thin-walled plate with specific colors. At the same time, the colorless raw material in the first extrusion channel 3 and the second extrusion channel 5 will enter the vertical discharge slot 123 to form the vertical thin-walled plate between the above adjacent transverse thin-walled plates. The vertical thin-walled plate supports the above transverse thin-walled plate to finally form the two-color or three-color hollow lattice board product. At the same time, the two ends of the air hole 111 are connected to the gas with a set pressure. The gas passes through each air hole channel 112 to the front of each rectangular extrusion area 124 and is blown forward, which plays a role in shaping and cooling the vertical thin-walled plate and the transverse thin-walled plate on the outside, preventing them from sticking to each other, and finally extruding qualified products.

[0025] The above is only the preferred embodiment of the present application, and does not limit the application in any form. Any simple modification, equivalent change or modification made according to the technical principles of the present application to the above embodiments still falls within the scope of the technical solutions of the present application.

Claims

1. A core structure of a two- or three-color hollow lattice panel extrusion die, characterized by: The utility model relates to a die core body (1) corresponding to the die body width, the top surface of the die core body (1) and the upper die lip (2) form the first extrusion channel (3), the bottom surface of the die core body (1) and the lower die lip (4) form the second extrusion channel (5), the die core body (1) includes the connecting part (11) of rear side and die body connection and the extrusion part (12) of front side, the extrusion part (12) upper portion is provided with the first transverse discharge groove (121) on the front end, the extrusion part (12) lower portion is provided with the second transverse discharge groove (122) on the front end, the extrusion part (12) is provided with a series of vertical discharge grooves (123) on the front end, the vertical discharge groove (123) is evenly distributed along the width direction of extrusion part (12), the first transverse discharge groove (121), the second transverse discharge groove (122), the vertical discharge groove (123) three will extrusion part (12) front end cut into a plurality of rectangular extrusion areas (124), the top surface and the bottom surface of the rear side of the extrusion part (12) are provided with feed groove (125) respectively along the width direction, the first extrusion channel (3), feed groove (125), vertical discharge groove (123), second extrusion channel (5) are connected, the connecting part (11) is provided with three gas holes (111) penetrating its left and right side faces, three gas holes (111) respectively extend a series of gas hole channels (112) forward along the width direction respectively, and the front end of each gas hole channel (112) corresponds to penetrate to a rectangular extrusion area (124).

2. The core structure of a double- or triple-color hollow lattice panel extrusion die according to claim 1, characterized in that: The left and right ends of the first transverse discharge groove (121) and the second transverse discharge groove (122) are provided with front and rear arranged guide strips (126) for guiding the flow of raw materials.

3. The core structure of a double or triple color hollow lattice panel extrusion die according to claim 1, characterized in that: The rear side of the connecting part (11) is provided with two rows of screw thread connection holes (113) in the up and down directions, and a screw passes through the screw thread connection hole (113) to fixedly connect the die core body (1) on the die head.

4. The core structure of a double or triple color hollow lattice panel extrusion die according to claim 1, characterized in that: The connecting part (11) and the extrusion part are both inclined surfaces with the front smaller than the rear, and the taper of the inclined surface of the extrusion part (12) is smaller than the taper of the inclined surface of the connecting part (11).

5. The core structure of a double or triple color hollow lattice panel extrusion die of claim 1, wherein: The first feed channel (114) connected with the first transverse discharge groove (121) and the second feed channel (115) connected with the second transverse discharge groove (122) are arranged in the up and down positions in the connecting part (11).

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