Co-extrusion distributor for online stepless adjustment of width of surface layer raw material

Abstract

The co-extrusion distributor comprises a main machine feeding block, a main machine body and a discharging plate which are sequentially connected, a B material feeding channel is vertically arranged in the main machine feeding block, a composite channel is vertically arranged in the main machine body, an extrusion channel is vertically arranged on the discharging plate, and a B material discharging channel is vertically arranged on the discharging plate. A left core rod mounting hole and a right core rod mounting hole are transversely and inwards formed in the front side face of the main machine body, located in the left side and the right side of the composite channel respectively and communicated with the composite channel, the core rods are inserted into the core rod mounting holes to be mounted, the core rod cover plate is connected to the front side face of the main machine body to axially position the front end face of the core rods, and the front end heads of the core rods penetrate out of the core rod cover plate. Two A material feeding channels are correspondingly arranged in the left area and the right area of the rear side face of the main machine body, A material channels communicated with the A material feeding channels are arranged on the rear end face of the core rod, and tapered grooves for annularly cutting the core rod are formed in the areas, located on the two outer sides of the composite channel, of the core rod. The material A can be compounded on the two side faces of the material B, and the width of the material A can be adjusted in a non-stop and stepless mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of extrusion die distributor, in particular to an online infinitely adjustable surface material width co-extrusion distributor. BACKGROUND

[0002] The core rod distributor belongs to a multi-layer co-extrusion composite product, and is suitable for the production of plates, sheets and films, and is intended to realize the uniformity of the two surface layers and the surface width without stopping the machine. During the composite process, the distributor is required to composite a plurality of different materials together according to a certain rule, and is suitable for the production of plates and sheets. At present, the core rod distributor is difficult to adjust the uniformity of each layer at one time, and the uniformity of the two surface layers and the surface width are mainly realized by replacing the core rod during shutdown, the use scene is single, and during the adjustment process, the flowability of different materials during the composite process and other factors need to be adjusted for many times, and during the adjustment process, the products shown in the cases of Figure 1 and Figure 2 are prone to occur. During this process, the material waste is large and the period is long. SUMMARY

[0003] In view of the above problems, the present application aims to provide an online infinitely adjustable surface material width co-extrusion distributor which can uniformly composite A material on both surfaces of B material and realize infinitely adjustable width of A material without stopping the machine.

[0004] The technical scheme of the present application is an online infinitely adjustable surface material width co-extrusion distributor, characterized by comprising a host machine feeding block, a host machine body and a discharge plate connected in sequence from back to front, a B material feeding channel is vertically arranged in the host machine feeding block, a composite channel is vertically arranged in the host machine body, an extrusion channel is vertically arranged on the discharge plate, the above three channels correspond to each other and are connected in series, two core rod mounting holes are horizontally arranged inward on the front side of the host machine body, the two core rod mounting holes are respectively located on the left and right sides of the composite channel and are in communication with each other, a core rod is inserted into the core rod mounting hole for installation, a core rod cover plate is connected to the front side of the host machine body for axial positioning of the front end face of the core rod, the front end of the core rod penetrates through the core rod cover plate, two A material feeding channels are arranged on the left and right regions of the rear side of the host machine body, an A material channel is arranged on the rear end face of the core rod and is in communication with the A material feeding channel, a gradual change groove is arranged on the outer side of the composite channel and surrounds the core rod, the width of the gradual change groove gradually increases from one side to the other side when the core rod rotates, and the A material channel is in communication with the narrowest position of the gradual change groove; the different widths of the gradual change groove are controlled by rotating the core rod to correspond to the surface layer of the composite channel, so as to realize the composite of A material with a specific width on the surface of B material.

[0005] Preferably, the shape of the gradual change groove is symmetrical about the center section of the core rod, the gradual change groove on the core rod is separated by 180° from the narrowest end to the widest end, and the intermediate width transitions in a gentle gradual change manner.

[0006] Preferably, the part of the core rod head that penetrates the core rod cover plate is an outer hexagonal structure for engagement by a wrench.

[0007] Preferably, the outer side of the core rod cover plate is provided with a scale mark around the core rod area to facilitate reading of the rotation angle of the core rod.

[0008] Preferably, the front end of the core rod is provided with an annular protruding limiting step, the rear side of the limiting step contacts the front side of the main body for positioning, and the core rod cover plate is connected to the main body by screws and positions the core rod to prevent it from coming out.

[0009] Preferably, the width of the widest end of the gradually changing groove on the core rod is less than or equal to the width of the composite channel.

[0010] The present application can uniformly composite A material on both sides of B material and realize stepless adjustment of the width of A material without stopping. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 A product structure diagram showing that A material is too short or too long when the existing mode is adjusted;

[0012] Figure 2 A product structure diagram showing that A material is unevenly thick when the existing mode is adjusted;

[0013] Figure 3 A product structure diagram of the present application;

[0014] Figure 4 A structure diagram of the present application;

[0015] Figure 5 A Figure 4 A structure diagram from another perspective;

[0016] Figure 6 A Figure 4 An exploded view of

[0017] Figure 7 A structure diagram of the transverse section at the center of the core rod of the present application;

[0018] Figure 8 A structure diagram of the longitudinal section at the gradually changing groove of the core rod of the present application;

[0019] Figure 9 A structure diagram of the core rod of the present application;

[0020] Wherein: 1 - host feeding block; 11 - B material feeding channel; 2 - host body; 21 - composite channel; 22 - mandrel mounting hole; 23 - A material feeding channel; 3 - discharge plate; 31 - extrusion channel; 4 - mandrel; 41 - A material channel; 42 - gradual change groove; 43 - limiting step; 5 - mandrel cover plate; 51 - scale mark. DETAILED DESCRIPTION

[0021] The application will be further described in detail below with reference to the accompanying drawings.

[0022] As Figures 3 to 9 shown, the application provides an online infinitely adjustable surface layer raw material width co-extrusion distributor, which comprises, from back to front, a host feeding block 1, a host body 2 and a discharge plate 3, a B material feeding channel 11 is vertically arranged in the host feeding block 1, a composite channel 21 is vertically arranged in the host body 2, and an extrusion channel 31 is vertically arranged on the discharge plate 3, the above three channels correspond to each other and are connected at the head and tail, two mandrel mounting holes 22 are horizontally arranged inward on the front side of the host body 2, the two mandrel mounting holes 22 are respectively located on the left and right sides of the composite channel 21 and are in communication with each other, a mandrel 4 is inserted into the mandrel mounting hole 22 for mounting, a mandrel cover plate 5 is connected to the front side of the host body 2 for axial positioning of the front end face of the mandrel 4, the front end of the mandrel 4 penetrates through the mandrel cover plate 5, two A material feeding channels 23 are arranged on the left and right regions of the rear side of the host body 2, an A material channel 41 is arranged on the rear end face of the mandrel 4 and is in communication with the A material feeding channel 23, and a gradual change groove 42 is arranged on the outer side of the composite channel 21 and surrounds the mandrel 4, the width of the gradual change groove 42 gradually increases when rotating from one side to the other side, and the A material channel 41 is in communication with the narrowest position thereof; the different widths of the gradual change groove 42 are controlled by rotating the mandrel 4 to correspond to the surface layer of the composite channel 21, so as to realize the compounding of A material with a specific width on the surface of B material.

[0023] In the above scheme, the gradual change groove 42 is symmetric about the center section of the mandrel 4, the gradual change groove 42 on the mandrel 4 is separated by 180° from the narrowest end to the widest end, and the intermediate width is gradually changed in a gentle manner.

[0024] In addition, the part of the mandrel 4 that penetrates through the mandrel cover plate 5 is an external hexagonal structure for clamping by a wrench.

[0025] Specifically, the scale mark 51 for reading the rotation angle of the mandrel 4 is arranged on the outer side of the mandrel cover plate 5 and surrounds the region of the mandrel 4.

[0026] In addition, the front end of the mandrel 4 is provided with a ring-shaped protruding limiting step 43, the rear side of the limiting step 43 contacts the front side of the host body 2 for positioning, and the mandrel cover plate 5 is connected to the host body 2 by screws and positions the mandrel 4 to prevent it from coming out.

[0027] Further, the width of the widest end of the gradually changing groove 42 on the mandrel 4 is less than or equal to the width of the composite channel 21.

[0028] The working principle of the present application is as follows:

[0029] The B raw material enters from the B material feeding channel 11 on the top of the main machine feeding block 1 to the composite channel 21 in the main machine body 2. The A material enters from the A material feeding channel 23 on the rear of the main machine body 2 to the A material channel 41 of the mandrel 4 and flows to the composite channel 21 through the gradually changing groove 42 to cover the left and right sides of the B material to form the composite raw material with ABA composite structure. The width of the A material is realized by rotating the mandrel 4, wherein the center line of the gradually changing groove 42 on the mandrel 4 coincides with the center line of the composite channel 21. When the mandrel 4 rotates, the different width positions of the gradually changing groove 42 correspond to the composite channel 21. The rotation angle of the mandrel 4 is further adjusted by observing the composite condition of the product coming out of the extrusion channel 31, and finally until the qualified product is extruded at the extrusion channel 31.

[0030] 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 principle of the present application to the above embodiment still belongs to the scope of the technical solution of the present application.

Claims

1. A coextrusion distributor for on-line infinitely adjustable skin stock width, characterized by: The utility model relates to a compound extruding machine, including host material feeding block (1) from back to front connection in proper order, host body (2) and discharge plate (3), vertical B material feeding channel (11) is set up in host material feeding block (1), vertical composite channel (21) is set up in host body (2), vertical extrusion channel (31) is set up on discharge plate (3), above-mentioned three channels correspond and head -to -tail intercommunication, the front side of host body (2) is provided with left and right two core rod installation hole (22) to the inside laterally, two core rod installation hole (22) are located composite channel (21) left and right sides and with each other intercommunication, and core rod (4) inserts core rod installation hole (22) and is installed, and core rod cover plate (5) is connected in the front side of host body (2) and is axially positioned to the front end surface of core rod (4), and the front end head of core rod (4) passes out core rod cover plate (5), and the left and right areas of the rear side of host body (2) are provided with two A material feeding channel (23) correspondingly, and the rear end surface of core rod (4) is provided with A material channel (41) with A material feeding channel (23) intercommunication, and the gradual change groove (42) of ring cutting core rod (4) is set up in the two outer side areas of composite channel (21) of core rod (4), and its width gradually increases when rotating from one side to the other side, and A material channel (41) intercommunication its narrowest position;Through the rotation of core rod (4), the different width of gradual change groove (42) is controlled to correspond the surface layer of composite channel (21), to realize the compound of A material of specific width on the surface of B material.

2. A co-extrusion distributor for on-line infinitely adjustable width of the surface material according to claim 1, characterized in that: The shape of the gradual change groove (42) is symmetric about the center section of the core rod (4), and the gradual change groove (42) on the core rod (4) is separated by 180° from the narrowest end to the widest end, and the middle width is gradually changed in a gentle manner.

3. A co-extrusion distributor for on-line infinitely adjustable width of the surface material according to claim 1, characterized in that: The part of the core rod (4) that passes out of the core rod cover plate (5) is an external hexagonal structure for a wrench to engage.

4. A co-extrusion distributor for on-line infinitely adjustable width of the surface material according to claim 3, characterized in that: The core rod cover plate (5) is provided with a scale mark (51) on the outer side surface around the core rod (4) area for reading the rotation angle of the core rod (4).

5. An on-line co-extrusion distributor for continuously adjusting the width of a surface layer material with stepless adjustment according to claim 3, characterized in that: The core rod (4) is provided with a ring-shaped protruding limiting step (43) at the front end, and the rear side surface of the limiting step (43) contacts the front side surface of the host body (2) for positioning.

6. An on-line co-extrusion distributor for continuously adjusting the width of a surface layer stock material by infinitely variable adjustment, according to claim 1, characterized in that: The width of the widest end of the gradual change groove (42) on the core rod (4) is less than or equal to the width of the composite channel (21).

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