Injection molding machine filtering flange device suitable for PET recovery sheet material

Abstract

The utility model belongs to the field, and provides an injection molding machine filter flange device suitable for PET (Polyethylene Terephthalate) recycled sheet materials, which comprises a nozzle, a filter flange, a screw component and a melt glue cylinder, the screw component is movably inserted into the melt glue cylinder, the nozzle is in threaded connection with one end of the filter flange, the other end of the filter flange is connected with the melt glue cylinder through a bolt, the filter further comprises a flange filter element which is located in the filter flange. Compared with the prior art, the utility model has the advantages that the nozzle flange, namely the filter flange structure in the traditional injection molding is redesigned, the flange filter element is arranged in the filter flange, and then the filter screen is wound on the outer wall of the flange filter element, so that the impurity black spots in the injected sizing material are blocked; and in the process, the sizing material is shunted and mixed, so that the fusion homogenization is enhanced, and finally, the filtered clean sizing material flows to the nozzle from the inner cavity of the flange filter element.

Description

Technical Field

[0001] The utility model belongs to the field of injection molding machine equipment, and in particular relates to an injection molding machine filter flange device suitable for PET recycling sheet materials. Background Art

[0002] Injection molding machine is a main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastic plastics or thermosetting plastics. In the field of injection molding of food packaging and daily necessities, the application scope of PET materials in the industry is becoming wider and wider. Because PET materials are highly recyclable, PET recycled flake materials are also widely used.

[0003] However, compared with new materials, PET recycled flakes have larger particles and more impurities. When using a standard injection molding machine to produce products, problems such as turbidity and black spots will occur, resulting in a decrease in the yield of the product. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a filter flange device for an injection molding machine suitable for PET recycling sheet materials, which can solve the problems of product turbidity and black spots.

[0005] The utility model solves the above technical problems by adopting the following technical solution: a filter flange device for an injection molding machine suitable for PET recycled sheet materials is proposed, comprising: a nozzle, a filter flange, a screw assembly and a melt glue barrel, wherein the screw assembly is movably inserted in the melt glue barrel, the nozzle is threadedly connected to one end of the filter flange, and the other end of the filter flange is connected to the melt glue barrel by bolts, wherein:

[0006] It also includes: a flange filter element, the flange filter element is located in the filter flange, and a gap is formed between the flange filter element and the filter flange, one end of the flange filter element abuts against the inner wall of the filter flange, and the other end of the flange filter element abuts against the nozzle;

[0007] When the injection cylinder mechanism in the externally arranged injection platform pushes the screw assembly to perform injection in the melt barrel, the rubber flows into the gap, and flows to the injection nozzle after being filtered by the flange filter element.

[0008] In the above-mentioned injection molding machine filter flange device suitable for PET recycled sheet materials, the flange filter element has a first end and a second end, and a placement hole is arranged in the filter flange. The first end abuts against the hole wall of the placement hole, and a filter hole is opened in the circumference of the flange filter element. The filter hole is connected with the gap, and an inner cavity is opened on the second end, and the filter hole is connected with the nozzle through the inner cavity.

[0009] In the above-mentioned injection molding machine filter flange device suitable for PET recycled sheet materials, a first limiting portion is formed on the circumference of the first end, a second limiting portion is formed on the axis of the second end, the filter hole is located between the first limiting portion and the second limiting portion, and a first limiting groove and a second limiting groove are provided on the placement hole, the first limiting portion abuts against the first limiting groove, and the second end is provided on the second limiting groove and abuts against the nozzle.

[0010] In the above-mentioned injection molding machine filter flange device suitable for PET recycled sheet materials, a guide head is formed on the first end along the direction of the molten rubber cylinder, the guide head is a conical structure, and a guide groove is opened on the first end, and the molten rubber cylinder is connected to the gap through the guide groove.

[0011] In the above-mentioned filter flange device for an injection molding machine suitable for PET recycled sheet materials, a filter net is detachably wrapped around the flange filter element, and the filter net is located on the filter hole.

[0012] In the above-mentioned filter flange device for an injection molding machine suitable for PET recycled sheet materials, the screw assembly is provided with a screw, and the screw is rotatably arranged in the melt cylinder.

[0013] In the above-mentioned filter flange device for an injection molding machine suitable for PET recycled sheet materials, the nozzle is provided with an injection through slot, and the injection through slot is communicated with the inner cavity.

[0014] Compared with the prior art, the advantage of the utility model lies in the redesign of the nozzle flange, i.e., the filter flange structure, in the traditional injection molding, and the flange filter element is installed in the filter flange, and then the filter net is wrapped around the outer wall of the flange filter element, so that the impurity black spots in the injected rubber material are blocked. In this process, the rubber material is diverted and mixed, and the melting homogenization is enhanced. Finally, the clean rubber material after filtering flows from the inner cavity of the flange filter element to the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the filter flange device of the injection molding machine suitable for PET recycled flake materials;

[0016] Figure 2 It is a cross-sectional view of the filter flange device of the injection molding machine suitable for PET recycled flake materials;

[0017] Figure 3 This is an exploded view of the filter flange device for the injection molding machine suitable for PET recycled flake materials;

[0018] Figure 4 It is a structural cross-sectional view of the flange filter element;

[0019] Figure 5This is the right side view of the flange filter element;

[0020] Figure 6 is a cross-sectional view of the filter flange.

[0021] In the figure,

[0022] 1. Nozzle; 10. Injection slot; 11. Gap;

[0023] 2. Filter flange; 20. Storage hole; 21. First limiting groove; 22. Second limiting groove;

[0024] 3. Screw assembly; 30. Screw;

[0025] 4. Glue melting cylinder;

[0026] 5. Flange filter element; 50. First end; 51. Second end; 52. Filter hole; 53. Inner cavity; 54. First limiting portion; 55. Second limiting portion; 56. Guide head; 57. Guide groove; 58. Filter screen. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0028] like Figures 1 to 6 As shown, a filter flange 2 device for an injection molding machine suitable for PET recycled sheet materials includes: a nozzle 1, a filter flange 2, a screw assembly 3, a melt cylinder 4 and a flange filter element 5.

[0029] Specifically, during installation, the filter flange 2 is fixed to the melt glue cylinder 4 by bolts, and then the screw assembly 3 is inserted into the interior of the melt glue cylinder 4 from the hole at the rear end of the melt glue cylinder 4, and then the flange filter element 5 is placed in the filter flange 2, and finally the nozzle 1 is screwed into the threaded hole of the filter flange 2, and one end of the flange filter element 5 is against the inner wall of the filter flange 2, so that the tail of the nozzle 1 presses the other end of the flange filter element 5, so that the flange filter element 5 is limited. When the external material storage is completed, the injection cylinder mechanism in the externally arranged injection platform pushes the screw assembly 3 to perform the injection action in the melt glue cylinder 4, and the rubber flows into the gap 11 and is filtered of impurities and black spots through the flange filter element 5. The clean rubber flows to the nozzle 1 and is then injected into the mold cavity from the nozzle 1.

[0030] Specifically, Figures 2 to 4 As shown, the flange filter element 5 has a first end 50 and a second end 51, a storage hole 20 is provided in the filter flange 2, the first end 50 is against the hole wall of the storage hole 20, a filter hole 52 is opened in the circumference of the flange filter element 5, the filter hole 52 is connected with the gap 11, and an inner cavity 53 is opened on the second end 51, and the filter hole 52 is connected with the nozzle 1 through the inner cavity 53.

[0031] The flange filter element 5 is in a cylindrical structure as a whole. A plurality of filter holes 52 are provided on the circumference of the flange filter element 5. The filter holes 52 can block the impurity black spots of the rubber material, thereby purifying the rubber material.

[0032] Furthermore, if Figures 2 to 5 As shown, a first limiting portion 54 is formed on the circumference of the first end portion 50, a second limiting portion 55 is formed on the axis of the second end portion 51, the filter hole 52 is located between the first limiting portion 54 and the second limiting portion 55, and a first limiting groove 21 and a second limiting groove 22 are provided on the placement hole 20, the first limiting portion 54 abuts against the first limiting groove 21, and the second end portion 51 is provided on the second limiting groove 22 and abuts against the nozzle 1.

[0033] The first end portion 50 protrudes outwardly on the circumference to form a first limiting portion 54, and the second end portion 51 protrudes outwardly on the axis to form a second limiting portion 55. The first limiting portion 54 is provided to facilitate abutment against the first limiting groove 21, and the second limiting portion 55 abuts against the second limiting groove 22 and is pressed against by the tail of the nozzle 1 to prevent subsequent rubber from flowing out of the gap between the second limiting portion 55 and the second limiting groove 22. The second end portion 51 abuts against the nozzle 1 to ensure that the flange filter element 5 is effectively limited, and also makes the inner cavity 53 of the flange filter element 5 and the nozzle 1 in a connected state.

[0034] Furthermore, if Figure 2 As shown, a filter screen 58 is detachably wrapped around the flange filter element 5 , and the filter screen 58 is located on the filter hole 52 .

[0035] In order to better ensure that the impurity black spots in the rubber material are blocked, a filter screen 58 is wound on the flange filter element 5, and the filter screen 58 is located between the first limit portion 54 and the second limit portion 55. The mesh on the filter screen 58, that is, the grid and the filter hole 52 can effectively block the impurity black spots in the gap 11 formed by the flange filter element 5 and the filter flange 2. In this process, the rubber material is diverted and mixed, and the melting homogenization is enhanced. Finally, the filtered clean rubber material flows from the inner cavity 53 of the flange filter element 5 to the nozzle 1.

[0036] It is worth mentioning that the material of the flange filter element 5 is determined by the properties of the material being beaten. If the material being beaten is corrosive, the filter element material is made of stainless steel, solid solution treated, and the hardness is not less than 40. In this embodiment, the rubber material being beaten is PET sheet material, which is non-corrosive, and is made of 38CrMoAl nitrided steel material, which is also more wear-resistant. The later maintenance of this device is convenient, and only needs to be manually unscrewed with a wrench, and then the shooting platform performs an empty shooting action to push out the flange filter element 5, so that the flange filter element 5 can be cleaned and the filter screen 58 can be replaced.

[0037] Furthermore, if Figures 2 to 4 As shown, a guide head 56 is formed on the first end 50 along the direction of the melt glue cylinder 4 , the guide head 56 is a conical structure, and a guide groove 57 is opened on the first end 50 , and the melt glue cylinder 4 is connected to the gap 11 through the guide groove 57 .

[0038] The guide head 56 can better guide the rubber material to flow, so that the material liquid enters the gap 11 through the guide groove 57 and then passes through the flange filter element 5 to block the impurities and black spots.

[0039] Furthermore, if Figure 2 and Figure 3 As shown, the screw assembly 3 is provided with a screw 30 , and the screw 30 is rotatably disposed in the melt cylinder 4 .

[0040] The screw assembly 3 has a motor, which can drive the screw 30 to rotate in the melt barrel 4 to realize the feeding of the rubber material. The screw assembly 3 is connected to the injection cylinder mechanism, and the injection cylinder mechanism pushes the screw 30 to move along the axial direction of the screw 30 in the melt barrel 4 to realize the injection action and inject the rubber material into the filter flange 2.

[0041] Specifically, Figure 2 As shown, the nozzle 1 is provided with an injection slot 10 , and the injection slot 10 is communicated with the inner cavity 53 .

[0042] The injection groove 10 of the nozzle 1 and the inner cavity 53 of the flange filter element 5 have the same diameter and are interconnected, which can effectively deliver the cleaned rubber material to the injection groove 10 through the inner cavity 53 and then inject it into the cavity of the external mold from the mouth of the nozzle 1.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. A filter flange device for an injection molding machine suitable for PET recycling flake materials, characterized in that: include: A nozzle, a filter flange, a screw assembly and a melt-melt cylinder, wherein the screw assembly is movably inserted in the melt-melt cylinder, the nozzle is threadedly connected to one end of the filter flange, and the other end of the filter flange is connected to the melt-melt cylinder by bolts, wherein: It also includes: a flange filter element, the flange filter element is located in the filter flange, and a gap is formed between the flange filter element and the filter flange, one end of the flange filter element abuts against the inner wall of the filter flange, and the other end of the flange filter element abuts against the nozzle; When the injection cylinder mechanism in the externally arranged injection platform pushes the screw assembly to perform injection in the melt barrel, the rubber flows into the gap, and flows to the injection nozzle after being filtered by the flange filter element.

2. The filter flange device for an injection molding machine suitable for PET recycling sheet materials according to claim 1, characterized in that: The flange filter element has a first end and a second end, a placement hole is provided in the filter flange, the first end is against the hole wall of the placement hole, a filter hole is provided in the circumference of the flange filter element, the filter hole is connected with the gap, and an inner cavity is provided on the second end, the filter hole is connected with the nozzle through the inner cavity.

3. The filter flange device for an injection molding machine suitable for PET recycling sheet materials according to claim 2, characterized in that: A first limiting portion is formed on the circumference of the first end portion, a second limiting portion is formed on the axis of the second end portion, the filter hole is located between the first limiting portion and the second limiting portion, the placement hole is provided with a first limiting groove and a second limiting groove, the first limiting portion abuts against the first limiting groove, and the second end is provided on the second limiting groove and abuts against the nozzle.

4. The filter flange device for an injection molding machine suitable for PET recycling sheet materials according to claim 3, characterized in that: A guide head is formed on the first end along the direction of the molten glue cylinder, the guide head is in a conical structure, and a guide groove is opened on the first end, and the molten glue cylinder is connected with the gap through the guide groove.

5. The filter flange device for an injection molding machine suitable for PET recycling sheet materials according to claim 3, characterized in that: A filter net is detachably wound on the flange filter element, and the filter net is located on the filter hole.

6. The filter flange device for an injection molding machine suitable for PET recycling flake materials according to claim 4, characterized in that: The screw assembly is provided with a screw, and the screw is rotatably arranged in the melt cylinder.

7. The filter flange device for an injection molding machine suitable for PET recycling sheet materials according to claim 2, characterized in that: The nozzle is provided with an injection through slot, and the injection through slot is communicated with the inner cavity.

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