EPE pearl wool multi-layer co-extrusion die head

Abstract

The utility model discloses an EPE pearl wool multilayer co-extrusion die head which comprises a die cavity arranged in the die head and a co-extrusion opening communicated with the die cavity, a plurality of separators are arranged in the die cavity and divide the die cavity into a plurality of flow channels, each flow channel is provided with an extrusion opening, the co-extrusion opening is communicated with the extrusion openings, and the co-extrusion opening is communicated with the extrusion openings. And the raw materials flowing through the different runners are extruded by the corresponding extrusion openings, are converged at the co-extrusion opening and are extruded. The foaming degree and the density of the product subjected to secondary extrusion are improved, so that higher requirements of customers are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a die head, especially a kind of EPE pearl wool multilayer co-extrusion die head. BACKGROUND

[0002] EPE pearl wool is widely used in the packaging of electronic products, household appliances, furniture, wine, gifts, daily necessities, glass products, ceramics, hardware products, electromechanical products and other products.

[0003] Because EPE pearl wool is a completely independent bubble body, it has the characteristics of flexibility, lightness and elasticity. However, in order to have the above-mentioned characteristics, it is necessary to pass through the die during production to have good performance.

[0004] Ordinary die head generally has pressurized flow channel and extrusion channel, and the extrusion channel has an extrusion port. The raw material pressurized by the pressurized flow channel is extruded from the extrusion port through the extrusion channel. For some ordinary pearl wool materials, the above process is sufficient to meet the requirements, but for some materials with relatively thick thickness, the foaming degree and density cannot meet the requirements if direct extrusion is adopted. Therefore, the applicant designs a kind of EPE pearl wool multilayer co-extrusion die head to solve the above-mentioned problem. SUMMARY

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a kind of EPE pearl wool multilayer co-extrusion die head.

[0006] The technical scheme adopted by the utility model to solve its technical problems is:

[0007] The EPE pearl wool multilayer co-extrusion die head comprises a die cavity arranged in the die head and a co-extrusion port communicated with the die cavity. A plurality of partition pieces are arranged in the die cavity, which divide the die cavity into a plurality of flow channels. Each flow channel has an extrusion port. The co-extrusion port and the extrusion port are communicated, and the raw materials flowing through different flow channels are extruded through the corresponding extrusion ports and then extruded after converging in the co-extrusion port.

[0008] It further comprises a position adjusting mechanism for adjusting the front and rear positions of the partition pieces in the die cavity. The position adjusting mechanism comprises an adjusting connecting plate, an adjusting hole arranged opposite to the die head and an adjusting shaft rotatably connected with the adjusting hole. The end of the adjusting shaft is provided with an eccentric part. The adjusting connecting plate is provided with a connecting hole one. The partition piece is provided with a connecting rod penetrating out of the die head. The adjusting connecting plate is connected with the connecting rod, and the eccentric part is rotatably connected with the connecting hole one. The adjusting shaft and the adjusting connecting plate can be locked to the die head by fasteners.

[0009] The end of the adjusting shaft is provided with a shaft head, the die head is provided with a counterbore concentric with the adjusting hole, the counterbore is provided with a shaft end piece, the end of the adjusting shaft can abut against the shaft end piece, the eccentric part is an eccentric sleeve sleeved on the shaft head, the eccentric sleeve is rotationally connected with the connecting hole, the shaft end piece is provided with an end piece hole, the shaft head passes through the end piece hole and is connected with the fastener, and the adjusting shaft, the shaft end piece and the eccentric sleeve are fixed with the die head through the fastener.

[0010] The fastener locks the adjusting connecting plate on the shaft head through the compression ring.

[0011] The die cavity and the co-extrusion opening are surrounded by two oppositely arranged side plates and a die block, further comprising a co-extrusion adjusting plate capable of adjusting the size of the co-extrusion opening and an adjusting screw, the die block is provided with a clamping groove with a circular arc cross section and a through hole communicating with the die cavity, the co-extrusion adjusting plate is provided with a rotating column rotationally matched with the clamping groove and an adjusting screw hole, and the rod part of the adjusting screw is threadedly connected with the adjusting screw hole through the through hole.

[0012] The flow channel is in a tapered structure, gradually narrowing from the inlet of the flow channel to the extrusion opening.

[0013] The adjusting connecting plate is provided with a connecting hole two, and the connecting rod is located in the connecting hole two.

[0014] The partition piece is provided with an oil hole one, the connecting rod is provided with an inner hole communicating with the oil hole one, and the oil pipe joint is connected with the oil hole one through the inner hole.

[0015] The partition piece is provided with a positioning groove, the end of the connecting rod is provided with a positioning block, and the end of the rotating shaft and the positioning block can be embedded in the positioning groove, and the oil hole one communicates with the positioning groove.

[0016] The partition piece is provided with an embedding groove, and the embedding groove is provided with a gasket in contact with the inner wall of the die cavity.

[0017] The utility model discloses a die head and a co-extrusion opening communicating with the die cavity, a plurality of partition pieces are arranged in the die cavity, the partition pieces divide the die cavity into a plurality of flow channels, each flow channel has an extrusion opening, the co-extrusion opening and the extrusion opening communicate, and the raw materials flowing through different flow channels are extruded through corresponding extrusion openings and then gathered in the co-extrusion opening for extrusion, the product after secondary extrusion realizes the improvement of foaming degree and density, thereby meeting the higher requirements of customers. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further explained in connection with the drawings and examples.

[0019] Figure 1 It is the overall structure view of the utility model;

[0020] Figure 2 is another overall structure view of the present utility model in another direction;

[0021] Figure 3 is a sectional structure view of the present utility model;

[0022] Figure 4 is an internal structure view of the present utility model;

[0023] Figure 5 is a structure view of the partition and position adjusting mechanism;

[0024] Figure 6 is an exploded structure view of the partition and position adjusting mechanism.

[0025] Figure 7 is a structure view of the partition.

[0026] Figure 8 is Figure 4 an enlarged structure view of A of DETAILED DESCRIPTION

[0027] The advantages and features of the present disclosure and the method of implementing the same will be clarified through the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be interpreted as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Furthermore, the present disclosure is defined only by the scope of the claims.

[0028] The shapes, sizes, ratios, angles, and numbers disclosed in the accompanying drawings for describing the embodiments of the present disclosure are only examples, and thus the present disclosure is not limited to the shown details. Throughout the specification, the same reference numerals refer to the same elements. In the following description, when a detailed description of related known functions or configurations is determined to be unnecessary for clearly understanding the present disclosure, the detailed description will be omitted. In the case where "include", "have", and "comprise" are used in the specification, other components can be added unless "only" is used. Unless indicated to the contrary, the singular form can include the plural form.

[0029] In interpreting elements, although not explicitly described, the elements are understood to include an error range.

[0030] In describing the positional relationship, for example, when the positional relationship is described as "on", "above", "below", and "adjacent to", unless "immediately" or "directly" is used, one or more parts can be arranged between two other parts.

[0031] In describing a relationship of time, for example, when a time sequence is described as "after", "subsequently", "next", and "before", unless "just" or "directly" is used, discontinuous cases can be included.

[0032] It should be understood that although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element can be called a second element, and similarly, a second element can be called a first element without departing from the scope of the disclosure

[0033] range.

[0034] As a person skilled in the art can fully understand, the features of different embodiments of the present disclosure can be partially or entirely coupled or combined with each other, and can be cooperated with each other in various ways and technically driven. Embodiments of the present disclosure can be executed independently of each other, or can be executed together in a mutually dependent relationship.

[0035] With reference to Figures 1 to 8 The utility model discloses a kind of EPE pearl cotton multilayer co-extrusion die head, including the die cavity 2 being set in die head 1 and the co-extrusion port 3 being communicated with die cavity 2, the die cavity 2 is equipped with several partition pieces 4, the partition piece 4 divides die cavity 2 into several flow channels 5, and each described flow channel 5 has an extrusion port 6, the co-extrusion port 3 is communicated with extrusion port 6, above-mentioned, die cavity 2 and pressurized flow channel 5 are communicated, so raw material is entered die cavity 2 after being pressurized by pressurized flow channel 100, flows into corresponding flow channel 5, and after extruding in extrusion port 6, it is extruded after gathering in co-extrusion port 3, realizes secondary extrusion, improves the degree of foaming and density, above-mentioned extrusion port 6 is arranged around co-extrusion port 3, so raw material can be directly entered co-extrusion port 3 from extrusion port 6.Extrusion port 6 is arranged around co-extrusion port 3, so raw material can be directly entered co-extrusion port 3 from extrusion port 6.As preferred structure, flow channel 5 is tapered structure, gradually narrows from the inlet of flow channel 5 to extrusion port 6, so the pressure of raw material can gradually increase, to ensure that raw material flows smoothly and gradually reaches pressure requirement, as further structure, the inlet of flow channel 5 is designed into flared mouth, the entrance of inlet is wide, and the exit of inlet is narrow, so it can more guide raw material into flow channel 5, so the shape of partition piece 4 is narrow at both ends and wide in the middle, and thus it can reduce the resistance caused by partition piece 4 to raw material.

[0036] As shown, the position adjusting mechanism for adjusting the front and back position of the partition 4 in the mold cavity 2 is also included, the width and position of the extrusion opening 6 is fine adjusted by the position of the partition 4, so as to adapt to the extrusion requirement of products of different specifications, the position adjusting mechanism includes an adjusting connecting plate 7, an adjusting hole oppositely arranged on the die head 1 and an adjusting shaft 8 rotationally matched with the adjusting hole, the end of the adjusting shaft 8 is provided with an eccentric part 9, the adjusting connecting plate 7 is provided with a connecting hole one 10, the partition 4 is provided with a connecting rod 11 penetrating out of the die head 1, the adjusting connecting plate 7 is connected with the connecting rod 11 and the eccentric part 9 is rotationally connected with the connecting hole one 10, the adjusting shaft 8 and the adjusting connecting plate 7 can be locked to the die head 1 by fasteners, of course, the die head 1 is provided with a long hole for the connecting rod 11 to penetrate out and move, when adjusting, a little fastener is loosened first, then the adjusting shaft 8 is rotated, so that the eccentric part 9 drives the adjusting connecting plate 7 to move, the adjusting connecting plate 7 pulls the connecting rod 11, so as to realize the slight adjustment of the position of the partition 4, the movement is about several millimeters, after the adjustment is completed, the fastener is locked again, the above structure has good reliability and long service life, can adapt to the environment of high temperature and high pressure, and does not occupy a large space, except that the adjusting shaft 8 is in the mold cavity 2, the rest of the components are outside the mold cavity 2, so the space occupation of the mold cavity 2 is also small. Because both ends of the adjusting shaft 8 of the present application are provided with the adjusting connecting plate 7, when adjusting, the partition 4 can be pulled from both sides, so the pulling force is relatively average, the mounting structure of the other end of the adjusting shaft 8 is the same as the principle of the present end, only the structure of the fastener is different, one end is a round nut 12, and the other end is an end plate 13 fixed with the shaft end, as a further structure, the partition 4 is provided with an embedded groove, the embedded groove is provided with a gasket 16 in contact with the inner wall of the mold cavity 2, the embedded groove surrounds the positioning groove, by the gasket 16, the partition 4 can avoid direct contact with the inner wall of the mold cavity 2, when the partition 4 moves, not only the friction is small, but also the metal-to-metal friction is avoided to cause large wear.

[0037] As shown in the figure, the end of the adjusting shaft 8 is provided with a shaft head 14, the end of which is square-shaped, facilitating tool clamping. The die head 1 is provided with a counterbore concentric with the adjusting hole. The counterbore is provided with a shaft end piece 15, and the end of the adjusting shaft 8 can abut against the shaft end piece 15. The eccentric part 9 is an eccentric sleeve which is sleeved on the shaft head 14. The eccentric sleeve is rotationally connected with the connecting hole one 10 and is connected with the shaft head 14 through a flat key structure. The shaft end piece 15 is provided with an end piece hole, and the shaft head 14 passes through the end piece hole and is connected with the fastener. The adjusting shaft 8, the shaft end piece 15 and the eccentric sleeve are fixed with the die head 1 through the fastener. Through the above structure, the machining and assembly of the adjusting shaft 8 are facilitated. As a preferred structure, the adjusting connecting plate 7 is provided with a connecting hole two 17, and the connecting rod 11 is located in the connecting hole two 17, so that the installation is simple. As a preferred structure, the eccentric sleeve is provided with a pointer disc 24 which rotates together with the eccentric sleeve. The die head surface is correspondingly provided with a scale. Through the pointer disc 24 and the scale structure, the movement adjustment amount of the partition piece 4 can be known.

[0038] Further comprising a compression ring 18. The fastener locks the adjusting connecting plate 7 on the shaft head 14 through the compression ring 18. The compression ring 18 prevents the adjusting connecting plate 7 from moving radially along the adjusting shaft 8.

[0039] As shown in the figure, the die cavity 2 and the co-extrusion port 3 are surrounded by two oppositely arranged side plates 19 and a die block 20. Further comprising a co-extrusion adjusting plate 21 and an adjusting screw 22 which can adjust the size of the co-extrusion port 3. The die block 20 is provided with a clamping groove with a circular arc cross section and a through hole which is in communication with the die cavity 2. The co-extrusion adjusting plate 21 is provided with a rotating column 23 which rotationally cooperates with the clamping groove and an adjusting screw hole (not shown in the figure). The rod part of the adjusting screw 22 is threadedly connected with the adjusting screw hole through the through hole. Through the swinging of the co-extrusion adjusting plate 21, the size of the co-extrusion port 3 can be adjusted, so as to adapt to the extrusion requirements of products of different specifications. Moreover, the adjusting structure is simple. The co-extrusion adjusting plate 21 also has a gasket 16, and the principle is not described in detail.

[0040] As shown in the figure, the partition piece 4 is provided with an oil hole one 25. The connecting rod 11 is provided with an inner hole 26 which is in communication with the oil hole one 25. An oil pipe joint 27 is connected with the oil hole one 25 through the inner hole 26. In the present application, the connecting rod 11 is oppositely arranged on the partition piece 4. Therefore, the oil pipe joint 27 on one connecting rod 11 is an oil inlet end, and the oil pipe joint 27 on the other connecting rod 11 is an oil outlet end. Through the above structure, the partition piece 4 can be oil-cooled, so as to ensure the service life of the product. Moreover, the convenient connection with the adjusting connecting plate 7 is realized, the structure is simplified, and the space is saved.

[0041] Specifically, the partition 4 is provided with a positioning groove 28, the end of the connecting rod 11 is provided with a positioning block 29, and the end of the rotating shaft and the positioning block 29 can be embedded into the positioning groove 28, and the oil hole 25 is communicated with the positioning groove 28, so that the connecting rod 11 is convenient to install and fix.

[0042] The EPE pearl wool multi-layer co-extrusion die head provided by the embodiment of the utility model is introduced in detail, the principle and implementation mode of the utility model are described by applying specific examples, the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model, and the above is not understood as the limitation of the utility model.

Claims

1. An EPE pearl wool multilayer co-extrusion die head, characterized in that: The utility model provides a kind of co-extrusion die, including the die cavity and the co-extrusion port being set in the die head and being communicated with the die cavity, the die cavity is equipped with several partition pieces, the die cavity is divided into several flow channels by the partition piece, and each flow channel has an extrusion port, the co-extrusion port is communicated with the extrusion port, and the raw material flowing through different flow channels is extruded after corresponding extrusion port and is extruded after converging in co-extrusion port.

2. The EPE pearl wool multi-layer co-extrusion die head according to claim 1, characterized in that: Further comprising position adjusting mechanism for adjusting the front and back positions of the partition piece in the die cavity, the position adjusting mechanism comprises adjusting connecting plate, adjusting hole oppositely arranged on the die head and adjusting shaft rotationally matched with the adjusting hole, the end of the adjusting shaft is provided with eccentric part, the adjusting connecting plate is provided with connecting hole one, the partition piece is provided with connecting rod penetrating through the die head, the adjusting connecting plate is connected with the connecting rod, and the eccentric part is rotationally connected with the connecting hole one, the adjusting shaft and the adjusting connecting plate can be locked to the die head by fastener.

3. The EPE pearl wool multi-layer co-extrusion die head according to claim 2, characterized in that: The end of the adjusting shaft is provided with shaft head, the die head is provided with counterbore concentric with the adjusting hole, the counterbore is provided with shaft end piece, the end of the adjusting shaft can abut against the shaft end piece, the eccentric part is eccentric sleeve sleeved on the shaft head, the eccentric sleeve is rotationally connected with the connecting hole one, the shaft end piece is provided with end piece hole, the shaft head penetrates through the end piece hole and is connected with the fastener, and the adjusting shaft, the shaft end piece and the eccentric sleeve are fixed to the die head by the fastener.

4. The EPE pearl wool multi-layer co-extrusion die head according to claim 3, characterized in that: Further comprising pressing ring, the fastener locks the adjusting connecting plate on the shaft head through the pressing ring.

5. The EPE pearl cotton multilayer co-extrusion die of claim 1, wherein: The die cavity and the co-extrusion port are surrounded by two oppositely arranged side plates and die block, further comprising co-extrusion adjusting plate capable of adjusting the size of the co-extrusion port and adjusting screw, the die block is provided with clamping groove with circular arc cross section and through hole penetrating through the die cavity, the co-extrusion adjusting plate is provided with rotating column rotationally matched with the clamping groove and adjusting screw hole, and the rod of the adjusting screw is threadedly connected with the adjusting screw hole through the through hole.

6. The EPE pearl cotton multilayer co-extrusion die of claim 1, wherein: The flow channel is tapered, gradually narrows from the inlet to the extrusion port.

7. The EPE pearl cotton multilayer co-extrusion die of claim 2, characterized in that: The adjusting connecting plate is provided with connecting hole two, and the connecting rod is located in the connecting hole two.

8. The EPE pearl wool multi-layer co-extrusion die head according to claim 7, characterized in that: The partition piece is provided with oil hole one, the connecting rod is provided with inner hole communicated with the oil hole one, and the oil pipe joint is connected with the oil hole one through the inner hole.

9. The EPE pearl cotton multilayer co-extrusion die of claim 8, characterized in that: The partition piece is provided with positioning groove, the end of the connecting rod is provided with positioning block, and the end of the connecting rod and the positioning block can be embedded in the positioning groove, and the oil hole one is communicated with the positioning groove.

10. The EPE pearl cotton multilayer co-extrusion die of claim 9, characterized in that: The partition piece is provided with embedding groove, and the embedding groove is provided with gasket in contact with the inner wall of the die cavity. The utility model discloses a kind of co-extrusion die, including the die cavity and the co-extrusion port being set in the die head and being communicated with the die cavity, the die cavity is equipped with several partition pieces, the die cavity is divided into several flow channels by the partition piece, and each flow channel has an extrusion port, the co-extrusion port is communicated with the extrusion port, and the raw material flowing through different flow channels is extruded after corresponding extrusion port and is extruded after converging in co-extrusion port.

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