An adjustable extrusion die

Abstract

The application relates to the field of molds, in particular to an adjustable extrusion die head which comprises a mounting plate, a die head arranged on the mounting plate, an adjusting device arranged between the mounting plate and the die head, the adjusting device comprising a sliding seat fixedly connected with the die head, a fixed seat fixedly connected with the mounting plate, and baffles arranged on opposite sides of the sliding seat, the sliding seat being slidably connected with the fixed seat and the sliding direction being arranged along the transverse direction of the die head, and the baffles and the sliding seat having a reserved gap for the expansion of the die head. The die head of the application can be adjusted, the reserved gap provides an expansion space for the die head along the transverse direction, therefore, after the die head is expanded under the action of high temperature, the expansion volume of the die head can be released along the transverse direction, the problem that the width of the discharge port is inconsistent at different positions due to the un-fixed expansion direction is adjusted and corrected, and the product quality is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of molds, in particular to an adjustable extrusion die. BACKGROUND

[0002] The extrusion die is an important component of the extrusion equipment, which is used to connect the material channel and extrude the material into the required shape, such as sheet, strip, etc. The application range of the extrusion equipment is wide, such as the gluing machine, plastic forming machine, etc. According to different application scenarios, the structure of the extrusion die is different. Among them, the extrusion die in the gluing machine is used to coat the adhesive on the base layer. The adhesive can be hot melt adhesive, PU coating adhesive, etc., and the base layer can be knitted fabric, plain woven fabric, paper, etc., which has different choices according to the application scenario of the gluing machine.

[0003] In the process of implementing the present application, the inventors found that at least the following problems exist in the technology: When the extrusion die is working, the inner cavity of the die continuously flows with high-temperature material, and the die is prone to small-scale thermal expansion, which causes the die discharge port to slightly deform, and further causes the extrusion layer to be uneven in thickness, affecting the product quality. SUMMARY

[0004] In order to improve the problem that the thermal expansion of the die affects the product quality, the present application provides an adjustable extrusion die.

[0005] The adjustable extrusion die provided by the present application adopts the following technical solution:

[0006] An adjustable extrusion die, comprising a mounting plate, a die provided on the mounting plate, a adjusting device provided between the mounting plate and the die, the adjusting device comprising a sliding seat fixedly connected with the die, a fixed seat fixedly connected with the mounting plate, and a baffle provided on the opposite sides of the sliding seat, the sliding seat and the fixed seat are slidingly connected, and the sliding direction is arranged along the transverse direction of the die, and the baffle and the sliding seat have a reserved gap for the expansion of the die.

[0007] By adopting the above technical solution, for the fixed die, the expansion direction after being affected by high temperature is not fixed, which causes the width of each part of the die discharge port to easily change, and the extrusion layer is uneven in thickness. The die of the present application is adjustable, and the reserved gap provides the die with a transverse expansion space, so that after the die is expanded due to high temperature, the expansion volume of the die can be released along the transverse direction, the expansion direction is guided, the problem that the expansion direction is not fixed and causes the width of each part of the discharge port to be inconsistent is adjusted and corrected, and the product quality is ensured.

[0008] Optionally, the fixed seat and the sliding seat are both provided with a plurality of and are arranged along the transverse direction of the die, the baffle is provided with two and is located on the opposite sides of the sliding seat on both sides, and the baffle is fixedly connected to the fixed seat and / or the mounting plate.

[0009] By adopting the technical scheme, on one hand, the die head is supported by multiple points, and the support is more stable; on the other hand, under the sliding cooperation of the multiple sets of fixed seats and sliding seats, each part of the die head can be well guided in the transverse direction when swelling, the effect of the adjusting device is further improved, and the product quality is improved, and the sliding positions of the die head are limited by the two baffles, so that the extrusion position offset of the die head is small.

[0010] Optionally, one side of the sliding seat is connected with a protrusion, and the other side is provided as an inclined surface, the fixed seat is provided with a sliding groove for clamping the sliding seat, the inclined surface faces the die head discharge port and is attached to the inner wall of the sliding groove, and the other side of the sliding seat away from the inclined surface has an accommodation gap with the inner wall of the sliding groove, and the sliding groove is communicated with a groove for clamping the protrusion.

[0011] By adopting the technical scheme, due to the limiting effect of the inclined surface and the protrusion, the sliding seat and the fixed seat cannot move away from each other, the moving direction of the die head is limited, the stability of extrusion is ensured. In addition, the accommodation gap gives the die head an expansion space in the direction away from the discharge port, which can prevent the die head from expanding and driving the sliding seat to excessively attach to the fixed seat, thereby preventing the relative friction force between the sliding seat and the fixed seat from being too large to cause the die head to be not easy to slide transversely, further ensuring the smooth guidance of the expansion direction of the die head, and helping to ensure the product quality.

[0012] Optionally, one side of the sliding seat facing the die head is provided with an upper concave cavity, and one side of the fixed seat facing the mounting plate is provided with a lower concave cavity.

[0013] By adopting the technical scheme, the contact area between the fixed seat and the mounting plate is reduced, and the contact area between the sliding seat and the die head is reduced, so that the die head is easy to drive the sliding seat to deform close to the accommodation gap after swelling.

[0014] Optionally, the bottom wall of the sliding groove is provided with a middle concave cavity.

[0015] By adopting the technical scheme, the contact area of the sliding seat and the fixed seat is reduced, and the sliding seat is further facilitated to slide.

[0016] Optionally, the fixed seat is divided into a main seat and a side seat, and the main seat and the side seat are detachably connected, and the connecting surface of the main seat and the side seat is connected with the inner wall of the groove away from the sliding groove.

[0017] By adopting the technical scheme, the fixed seat is divided into two parts, which is convenient for the installation of the die head.

[0018] Optionally, the device further comprises a rack, a rotating device arranged between the rack and the mounting plate, the rotating device comprising a rotating frame arranged on a side of the mounting plate away from the die head, a rotating shaft rotatably connected between the rotating frame and the rack, and a driving member for driving the rotating frame to rotate around the rotating shaft.

[0019] By adopting the above technical scheme, the driving member can drive the rotating frame to rotate around the rotating shaft, thereby driving the die head to rotate, so that the distance between the die head and the corresponding glue roller is increased or decreased, the thickness of the extruded layer can be adjusted, and the base fabric can pass through between the die head and the glue roller.

[0020] Optionally, a fine adjustment device is arranged between the rotating frame and the mounting plate, the fine adjustment device comprising a connecting plate connected to a side of the rotating frame facing the mounting plate, a connecting seat fixedly connected with the connecting plate, a connecting rod rotatably connected with the connecting seat, a mounting seat fixedly connected with the mounting plate, and a mounting rod rotatably connected with the mounting seat.

[0021] A mounting side plate is fixedly connected to a side edge of the mounting plate, a connecting side plate is fixedly connected to a side edge of the connecting plate, and the mounting side plate and the connecting side plate are rotatably connected by a fine adjustment rotating shaft at an end away from the connecting plate, the mounting rod is provided with an adjusting shaft, and the adjusting shaft is threadedly connected with the connecting rod.

[0022] By adopting the above technical scheme, the adjusting shaft is twisted to change the distance between the connecting rod and the mounting rod, so that the mounting plate rotates around the fine adjustment rotating shaft relative to the connecting plate, thereby fine adjusting the distance between the die head and the corresponding glue roller, and improving the accuracy of the thickness adjustment of the extruded layer.

[0023] Optionally, the connecting plate is slidably connected with the rotating frame, and a sliding direction of the connecting plate is arranged along a transverse direction of the die head, a positioning device is arranged between the connecting plate and the rotating frame, the positioning device comprising a threaded sleeve threadedly connected with the adjusting shaft, a movable rod ball-jointed to an end of the threaded sleeve away from the adjusting shaft, and a sleeve ball-jointed with the rotating frame, the movable rod being slidably connected in the sleeve, and the sleeve being provided with a fastener for fastening the movable rod.

[0024] By adopting the above technical scheme, the transverse position of the die head can be adjusted, and the application range is wide. When the position of the die head is adjusted, the sleeve is screwed on the adjusting shaft, and the movable rod is fastened by the fastener. At this time, the movable rod cannot move relative to the sleeve, and the distance from the joint end of the sleeve and the rotating frame to the threaded sleeve is fixed. On the one hand, the rotating frame and the connecting seat cannot slide relative to each other, thereby preventing the die head from moving transversely. On the other hand, the rotating shaft cannot rotate, thereby preventing the die head from rotating around the fine adjustment rotating shaft, and reducing the trouble of accidental rotation of the rotating shaft.

[0025] Optionally, the fastener is a screw rod, the screw rod is threadedly connected with the sleeve and abuts against the movable rod, an end of the screw rod facing the movable rod is connected with an anti-slip pad, and the other end of the screw rod is provided with an internal hexagonal hole.

[0026] By adopting the above technical scheme, the fastening effect of the movable rod is good, and the screw rod needs to be rotated by means of a hexagonal wrench or the like, so that the fault tolerance is high.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. By adjusting the setting of the adjusting device, the expansion volume of the die head can be released in the transverse direction, thereby adjusting and correcting the problem that the expansion direction is not fixed and causes the width of the discharge port to be inconsistent, and ensuring product quality;

[0029] 2. By providing the rotating device and the fine adjustment device, the thickness of the extruded layer can be adjusted;

[0030] 3. By providing the positioning device, the position of the die head can be positioned, and the fault tolerance is high. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic view of the adjustable extrusion die head of embodiment 1 of the present application;

[0032] Figure 2 is a structural schematic view of the rack and the rotating device of embodiment 1 of the present application;

[0033] Figure 3 is a structural schematic view of the rotating frame, the mounting plate and the fine adjustment device of embodiment 1 of the present application;

[0034] Figure 4 is Figure 3 an enlarged schematic view of area A in FIG. 7;

[0035] Figure 5 is a structural schematic view of the mounting plate, the die head and the adjusting device of embodiment 1 of the present application;

[0036] Figure 6 is Figure 5 an enlarged schematic view of area B in FIG. 8;

[0037] Figure 7 is a top view structural schematic view of the adjusting device of embodiment 1 of the present application;

[0038] Figure 8 is a side view structural schematic view of the sliding seat and the fixed seat of embodiment 1 of the present application;

[0039] Figure 9 is a structural schematic view of the positioning device of embodiment 2 of the present application.

[0040] Explanation of reference signs: 1, mounting plate; 2, die head; 3, adjusting device; 31, sliding seat; 311, protruding block; 312, inclined surface; 313, upper concave cavity; 32, fixed seat; 321, sliding groove; 322, groove; 323, middle concave cavity; 324, lower concave cavity; 325, main seat; 326, side seat; 33, baffle; 34, reserved gap; 35, containing gap; 4, rack; 5, rotating device; 51, rotating rack; 52, rotating shaft; 53, driving piece; 6, fine adjustment device; 61, connecting plate; 62, connecting seat; 63, connecting rod; 64, mounting seat; 65, mounting rod; 66, mounting side plate; 67, connecting side plate; 68, fine adjustment rotating shaft; 69, adjusting shaft; 7, positioning device; 71, threaded sleeve; 72, movable rod; 73, sleeve; 74, fastener. DETAILED DESCRIPTION

[0041] The following will be described in detail with reference to the accompanying drawings. Figures 1-9 The present application is further described in detail.

[0042] Example 1

[0043] With reference to Figure 1 An adjustable extrusion die head 2, comprising a mounting plate 1, a die head 2 arranged on the mounting plate 1, an adjusting device 3 for connecting the die head 2 and the mounting plate 1, a rack 4, a rotating device 5 mounted on the rack 4 and used for driving the die head 2 to rotate, and a fine adjustment device 6 arranged on the rotating device 5 and used for controlling the small amplitude rotation of the die head 2. The upper rubber roller is rotatably connected to the rack 4, arranged in the horizontal direction, and the die head 2 discharge port is opposite to one side of the upper rubber roller. The base fabric passes between the die head 2 and the upper rubber roller from bottom to top, and the extruded layer is formed on the surface of the base fabric after the die head 2 feeds, and then passes through the cooling roller.

[0044] The adjusting device 3 is used to guide the die head 2 to expand in the transverse direction, and to correct the problem that the width of the discharge port at each position is not consistent due to the unfixing of the expansion direction. The rotating device 5 is used to control the die head 2 to rotate towards or away from the upper rubber roller, on the one hand to facilitate the base fabric to pass between the die head 2 and the upper rubber roller, and on the other hand to control the distance between the die head 2 and the upper rubber roller, thereby controlling the thickness of the extruded layer. The fine adjustment device 6 is used to more accurately control the distance between the die head 2 and the upper rubber roller, thereby improving the production precision.

[0045] With reference to Figure 1 , Figure 2The rotating device 5 comprises a rotating frame 51 rotatably connected with the frame 4, a rotating shaft 52 for connecting the rotating frame 51 and the frame 4, and a driving member 53. The mounting plate 1 is arranged on the upper side of the rotating frame 51, the rotating frame 51 comprises a top plate and bottom side plates fixedly connected with the lower side of both ends of the top plate, and the rotating shaft 52 is arranged in the middle of the upper ends of the two bottom side plates in the horizontal direction and is rotatably connected with the frame 4. The driving member 53 is located on the lower end of the bottom side plate close to one side of the rubber coating roller. In the embodiment, the driving member 53 is a driving cylinder, the bottom of the cylinder body of the driving cylinder is hingedly connected with the frame 4, the top end of the piston rod is hingedly connected with the lower end of the bottom side plate, so that the driving member 53 can push the rotating frame 51 to rotate around the rotating shaft 52, thereby controlling the die head 2 to rotate towards or away from the rubber coating roller.

[0046] With reference to Figure 3 , the fine adjustment device 6 comprises a connecting plate 61 arranged between the rotating frame 51 and the mounting plate 1, and in the embodiment, the connecting plate 61 is fixedly connected with the rotating frame 51. In another embodiment, the connecting plate 61 can also be slidingly connected with the rotating frame 51 and is provided with a positioning structure.

[0047] With reference to Figure 3 , the connecting plate 61 is provided with two and is arranged on both sides of the upper end of the rotating frame 51, and the upper end of each side of the two connecting plates 61 is fixedly connected with a connecting side plate 67. The upper end of each side of the mounting plate 1 is fixedly connected with a mounting side plate 66, and the mounting side plate 66 is located on the side of the two connecting side plates 67. The upper end of the mounting side plate 66 and the connecting side plate 67 on the same side is rotatably connected through a fine adjustment rotating shaft 68, and the fine adjustment rotating shaft 68 is located above the mounting plate 1 close to one side of the rubber coating roller, so that when the mounting plate 1 rotates relative to the connecting plate 61 around the fine adjustment rotating shaft 68, the die head 2 can be close to or away from the rubber coating roller, and the amplitude of movement is small.

[0048] With reference to Figure 3 , Figure 4The two connecting seats 62 are parallel and have a connecting rod 63 rotatably connected between the end portions. The mounting plate 1 has two mounting seats 64 fixedly connected to the upper end away from the glue roller, and the two mounting seats 64 are parallel and have a mounting rod 65 rotatably connected between the end portions. The mounting rod 65 is located above the connecting rod 63 and is connected between the connecting rod 63 and the mounting rod 65 through an adjusting shaft 69. The mounting rod 65 has a through hole in the middle, the adjusting shaft 69 has an annular groove on the outer wall, and the annular groove is matched with the through hole to enable the adjusting shaft 69 to be rotatably arranged in the middle of the mounting rod 65. The adjusting shaft 69 can rotate around its own axis but cannot slide along its own axis relative to the mounting rod 65. The connecting rod 63 has a threaded hole in the middle, and the lower end of the adjusting shaft 69 is screwed into the threaded hole. The part of the adjusting shaft 69 above the mounting rod 65 is provided with a screw head, which is convenient for the operator to screw the adjusting shaft 69.

[0049] After the adjusting shaft 69 is rotated, the connecting rod 63 can move along the adjusting shaft 69, the distance between the connecting rod 63 and the mounting rod 65 is changed, the mounting plate 1 is fixed, and thus the mounting plate 1 can be slightly rotated around the fine adjustment shaft 68, and the distance between the die head 2 and the glue roller is adjusted.

[0050] Referring to Figure 5 , Figure 6 The adjusting device 3 comprises a sliding seat 31 fixedly connected with the die head 2 and a fixed plate fixedly connected with the mounting plate 1. The sliding seat 31 is slidably connected with the fixed seat 32, and the sliding direction is arranged in the horizontal direction of the die head 2. In the embodiment of the application, the sliding seat 31 and the fixed seat 32 are both arranged in four in the horizontal direction of the die head 2, and the sliding seat 31 and the fixed seat 32 are one-to-one corresponding. In another embodiment, the number of the sliding seat 31 and the fixed seat 32 can be one, two, three, five or more, which is determined according to the actual size of the die head 2.

[0051] Referring to Figure 6 , Figure 7 The opposite sides of the sliding seat 31 located on both sides are provided with a baffle 33, and the upper end of the baffle 33 has a reserved gap 34 in the horizontal direction with the adjacent sliding seat 31. In other words, the distance between the opposite sides of the sliding seat 31 located on both sides is less than the distance between the opposite sides of the two baffles 33. Therefore, the die head 2 is not completely fixed, and has a small range of movement in the horizontal direction. When the die head 2 is expanded by high temperature, the expansion volume of the die head 2 can be released in the horizontal direction of the die head 2 until the sliding seat 31 located on both sides is attached to the corresponding baffle 33.

[0052] In this embodiment, the baffle 33 is fixedly connected to the adjacent fixed seat 32. In another embodiment, the baffle 33 can also be fixedly connected to the mounting plate 1, or simultaneously fixedly connected to both the mounting plate 1 and the fixed seat 32.

[0053] Reference Figure 6 , Figure 8 The fixed base 32 is provided with a sliding groove 321 for the sliding base 31 to be engaged and slide laterally along the die head 2. The sliding groove 321 extends through both ends of the die head 2 laterally. A protrusion 311 is fixedly connected to the lower end of one side of the sliding base 31, and an inclined surface 312 is provided on the opposite side. The inclined surface 312 faces the discharge port of the die head 2 and fits against the inner wall of the sliding groove 321. The sliding groove 321 is connected to a groove 322 for the protrusion 311 to be engaged. The protrusion 311 abuts against the bottom wall of the groove 322 away from the sliding groove 321. Therefore, the sliding base 31 has a shape that is narrow at the top and wide at the bottom, which effectively prevents the sliding base 31 and the fixed base 32 from moving in opposite directions and provides good guidance for the movement direction of the sliding base 31.

[0054] The sliding seat 31 has a receiving gap 35 between its side away from the inclined surface 312 and the inner wall of the sliding groove 321, and the receiving gap 35 is located on the upper side of the protrusion 311. The receiving gap 35 provides the die head 2 with expansion space in the direction away from the discharge port, which can prevent the die head 2 from causing the sliding seat 31 to be excessively pressed against the fixed seat 32 after expansion, and ensure the smooth guidance of the expansion direction of the die head 2.

[0055] Reference Figure 6 , Figure 8 The sliding seat 31 has an upper recess 313 on the side facing the mold head 2, the bottom wall of the sliding groove 321 has a middle recess 323, and the fixed seat 32 has a lower recess 324 on the side facing the mounting plate 1. The upper recess 313, the middle recess 323, and the lower recess 324 are all through-holes at both ends along the sliding direction of the sliding seat 31. This reduces the contact area between the fixed seat 32 and the mounting plate 1, the contact area between the sliding seat 31 and the mold head 2, and the contact area between the sliding seat 31 and the fixed seat 32, facilitating the relatively smooth movement of the sliding seat 31 and the fixed seat 32.

[0056] Reference Figure 8 The fixed base 32 is divided into a main base 325 and a side base 326, which are connected by bolts. The bolts pass through the side base 326 and are screwed into the main base 325. The connecting surfaces of the main base 325 and the side base 326 are connected to and coplanar with the inner wall of the groove 322 on the side away from the sliding groove 321, so the side base 326 is L-shaped. The accommodating gap 35 is located between the upper end of the side base 326 and the sliding base 31, and the groove 322 is formed between the lower side of the upper end of the side base 326 and the main base 325. The fixed base 32 is provided in separate parts, which facilitates the installation of the mold head 2.

[0057] It needs to be specially pointed out that the adjusting device 3 can be applied not only in the gluing machine, but also in other devices related to the extrusion die head 2 conveying high-temperature materials.

[0058] The implementation principle of the adjustable extrusion die head 2 in the embodiment of the application is as follows:

[0059] First, the driving member 53 is started, the piston rod is retracted, the die head 2 is moved away from the gluing roller, the base fabric is then passed between the die head 2 and the gluing roller, the piston rod of the driving member 53 is then elongated, the die head 2 is moved close to the gluing roller to an appropriate distance, the mounting plate 1 is then rotated around the fine adjustment rotating shaft 68 by rotating the adjusting shaft 69 to change the distance between the mounting rod 65 and the connecting rod 63, the distance between the die head 2 and the gluing roller is accurately controlled, and finally the device is started, the high-temperature material is sent into the die head 2 and then extruded on the base fabric.

[0060] When the die head 2 is expanded by the high-temperature material, it is guided in the transverse direction under the cooperation of the sliding seat 31 and the fixed seat 32, so that the die head 2 will not cause excessive deformation of the discharge port after expansion, which helps to ensure the uniform thickness of the extruded layer.

[0061] Embodiment 2:

[0062] The difference from embodiment 1 is only that Figure 9 the connecting plate 61 is slidably connected with the rotating frame 51, and the positioning device 7 is arranged between the connecting plate 61 and the rotating frame 51. The lower side of the connecting plate 61 is fixedly connected with a sliding block, the upper side of the rotating frame 51 is fixedly connected with a sliding rail, and the sliding block and the sliding rail are in sliding cooperation, so that the connecting plate 61 can slide in the transverse direction of the die head 2 to change the position of the discharge port of the die head 2, and the application range is wide.

[0063] Referring to Figure 9 the positioning device 7 includes a sleeve 73 and a movable rod 72 slidably connected in the sleeve 73, the movable rod 72 and the sleeve 73 can slide axially relative to each other, and thus the distance between the sleeve 73 and the end of the movable rod 72 opposite to each other is changed. The end of the sleeve 73 facing the movable rod 72 is provided with a fastener 74, the fastener 74 is a screw, the screw is threadedly connected with the side wall of the sleeve 73, one end of the screw extends into the inside of the sleeve 73 along the radial direction and abuts against the movable rod 72, and the other end of the screw is located outside the sleeve 73 and is provided with an internal hexagonal hole. The end of the screw facing the movable rod 72 is fixedly connected with an anti-skid pad, the screw is rotated by means of a hexagonal wrench inserted into the internal hexagonal hole, so that the screw abuts against the movable rod 72, and thus the movable rod 72 and the sleeve 73 are relatively fixed.

[0064] Referring to Figure 9The lower end of the adjusting shaft 69 is threadedly connected with a threaded sleeve 71, and the end of a movable rod 72 away from the sleeve 73 is ball-jointed to the lower end of the outer wall of the sleeve 73, and the end of the sleeve 73 away from the movable rod 72 is ball-jointed to the lower side of the top plate of the rotating frame 51. Therefore, the sleeve 73 can rotate in any direction relative to the rotating frame 51, and the movable rod 72 can rotate in any direction relative to the threaded sleeve 71, so as to increase flexibility to match different positions of the adjusting shaft 69.

[0065] The implementation principle of the adjustable extrusion die of the embodiment of the present application is as follows:

[0066] When the position of the die 2 is adjusted, the sleeve 73 is screwed on the adjusting shaft 69, and the movable rod 72 is fastened by the fastener 74, so that the movable rod 72 cannot move relative to the sleeve 73. Firstly, the threaded sleeve 71 cannot be screwed relative to the adjusting shaft 69 because the threaded sleeve 71 needs to slide relative to the sleeve 73 when the threaded sleeve 71 is screwed. Secondly, the adjusting shaft 69 cannot be rotated because the adjusting shaft 69 will be deflected around the connecting rod 63 and moved along the axial direction of the adjusting shaft 69 after the adjusting shaft 69 is screwed, so as to cause the position of the threaded sleeve 71 and the rotating frame 51 to change. Thirdly, the connecting plate 61 cannot be rotated because the position of the threaded sleeve 71 and the rotating frame 51 will change after the connecting plate 61 is slid, so as to realize good positioning of the die 2.

[0067] Because the fastener 74 is located in a hidden place and is not easy to be touched by mistake, the safety of operation is improved.

[0068] The above are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. An adjustable extrusion die comprising a mounting plate (1), a die (2) arranged on the mounting plate (1), characterized in that: The adjusting device (3) is arranged between the mounting plate (1) and the die head (2), and comprises a sliding seat (31) fixedly connected with the die head (2), a fixed seat (32) fixedly connected with the mounting plate (1), and a baffle (33) arranged on the opposite sides of the sliding seat (31).

2. An adjustable extrusion die according to claim 1, wherein: The machine frame (4) and the mounting plate (1) are further provided with a rotating device (5) arranged between the machine frame (4) and the mounting plate (1), and the rotating device (5) comprises a rotating frame (51) arranged on the side of the mounting plate (1) away from the die head (2), a rotating shaft (52) rotatably connected between the rotating frame (51) and the machine frame (4), and a driving member (53) for driving the rotating frame (51) to rotate around the rotating shaft (52).

3. An adjustable extrusion die according to claim 2, wherein: The fine adjustment device (6) is arranged between the rotating frame (51) and the mounting plate (1), and comprises a connecting plate (61) connected to the side of the rotating frame (51) facing the mounting plate (1), a connecting seat (62) fixedly connected with the connecting plate (61), a connecting rod (63) rotatably connected with the connecting seat (62), a mounting seat (64) fixedly connected with the mounting plate (1), and a mounting rod (65) rotatably connected with the mounting seat (64). The mounting plate (1) side fixedly connected with installation side plate (66), the connecting plate (61) side fixedly connected with connecting side plate (67), the installation side plate (66) and connecting side plate (67) away from the connecting plate (61) one end between through fine adjustment rotating shaft (68) rotation connection, the installation rod (65) is provided with adjusting shaft (69), the adjusting shaft (69) and connecting rod (63) are screwed.

4. An adjustable extrusion die according to claim 3, wherein: The connecting plate (61) and rotating frame (51) are slidably connected, and the sliding direction is arranged along the transverse direction of the die head (2). A positioning device (7) is arranged between the connecting plate (61) and the rotating frame (51). The positioning device (7) comprises a threaded sleeve (71) screwed on the adjusting shaft (69), a movable rod (72) ball-jointed to the end of the threaded sleeve (71) away from the adjusting shaft (69), and a sleeve (73) ball-jointed to the rotating frame (51). The movable rod (72) is slidably connected in the sleeve (73). The sleeve (73) is provided with a fastener (74) for fastening the movable rod (72).

5. An adjustable extrusion die according to claim 4, wherein: The fastener (74) is a screw rod, which is screwed with the sleeve (73) and abuts against the movable rod (72). One end of the screw rod towards the movable rod (72) is connected with an anti-skid pad, and the other end is provided with an internal hexagonal hole.

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