An automatically self-aligning extrusion head die

Abstract

The present application relates to an extrusion head die with automatic deviation adjustment, belonging to the technical field of extrusion head dies, and comprising: a head body, with a mounting groove provided at one end of the head body; an inner die, fixed to the other end of the head body; an outer die, disposed in the mounting groove, and an extrusion diversion channel is provided between the outer die and the inner die; an upper adjusting rod penetrates through the upper side of the head body, a lower adjusting rod penetrates through the lower side, a left adjusting rod penetrates through the left side, and a right adjusting rod penetrates through the right side; the upper side of the outer die abuts against the upper adjusting rod, the lower side abuts against the lower adjusting rod, the left side abuts against the left adjusting rod, and the right side abuts against the right adjusting rod; the upper adjusting rod and the lower adjusting rod are connected by a first connecting frame, and the left adjusting rod and the right adjusting rod are connected by a second connecting frame; a first driving mechanism for driving the first connecting frame to move up and down and a second driving mechanism for driving the second connecting frame to move left and right are provided on the head body. The present application can automatically adjust the deviation, which is beneficial to reducing the labor cost and improving the adjustment efficiency of the eccentricity adjustment.

Description

Technical Field

[0001] This application relates to the field of cable production, and particularly to an extrusion head die with automatic deviation adjustment. Background Art

[0002] The current single-layer extrusion forming device for insulated wires coats an insulating skin on the surface of the core wire. The eccentricity determines the quality of the insulated wire. If the thinnest point is less than the specified standard, after long-term use, the anti-mechanical stress and anti-chemical substance ability at the thinnest point will definitely be the weakest and will break first. The greater the number of layers, the greater the production difficulty, such as double-layer extrusion and triple-layer extrusion. Currently, the main control method for the eccentricity of the extrusion process of insulated wires is an on-line eccentricity detector. After problems occur, the locking screws of the head die are manually adjusted. The on-line eccentricity detector can only detect and display the eccentricity of the extrusion online, and cannot perform automatic adjustment. It is necessary to manually observe the eccentricity and then manually adjust the locking screws of the extrusion die of the head to adjust the eccentricity. There are problems such as dependence on the experience of professionals, slow adjustment speed, many start-up scrap products, and inability to perform real-time dynamic adjustment. It affects the overall production efficiency, product quality, and reasonable use of materials. Summary of the Invention

[0003] To facilitate the adjustment of eccentricity, this application provides an extrusion head die with automatic deviation adjustment.

[0004] An extrusion head die with automatic deviation adjustment provided by this application adopts the following technical solutions:

[0005] An extrusion head die with automatic deviation adjustment includes:

[0006] A head body, one end of which is provided with an installation groove;

[0007] An inner die, fixed to the other end of the head body;

[0008] An outer die, disposed in the installation groove, and an extrusion diversion channel is provided between the outer die and the inner die;

[0009] An upper adjustment rod penetrates through the upper side of the head body, a lower adjustment rod penetrates through the lower side, a left adjustment rod penetrates through the left side, and a right adjustment rod penetrates through the right side;

[0010] The upper side of the outer die abuts against the upper adjustment rod, the lower side abuts against the lower adjustment rod, the left side abuts against the left adjustment rod, and the right side abuts against the right adjustment rod;

[0011] The upper adjustment rod and the lower adjustment rod are connected by a first connecting frame, and the left adjustment rod and the right adjustment rod are connected by a second connecting frame;

[0012] A first driving mechanism for driving the first connecting frame to move up and down and a second driving mechanism for driving the second connecting frame to move left and right are provided on the head body.

[0013] Optionally, the first driving mechanism includes a first lead screw module provided on the head body and a first driving motor connected to the first lead screw module. One end of the first connecting frame is provided with a first connecting plate, and the slider on the first lead screw module is detachably fixed to the first connecting plate.

[0014] Optionally, the second driving mechanism includes a second lead screw module provided on the head body and a second driving motor connected to the second lead screw module. One end of the second connecting frame is provided with a second connecting plate, and the slider on the second lead screw module is detachably fixed to the second connecting plate.

[0015] Optionally, both the upper adjusting rod and the lower adjusting rod penetrate through the first connecting frame. A first locking member for locking the upper adjusting rod and a second locking member for locking the lower adjusting rod are provided on the first connecting frame;

[0016] Both the left adjusting rod and the right adjusting rod penetrate through the second connecting frame. A third locking member for locking the left adjusting rod and a fourth locking member for locking the right adjusting rod are provided on the second connecting frame.

[0017] Optionally, one sides of the first connecting frame and the second connecting frame close to the installation groove are respectively abutted against the outer mold.

[0018] Optionally, a first arc section is formed by bending the middle section of the first connecting frame towards the left or right, and a second arc section is formed by bending the middle section of the second connecting frame towards the upper or lower side. The inner diameters of the first arc section and the second arc section are both set to be larger than the die opening diameter of the outer mold.

[0019] Optionally, an avoidance groove is provided on one of the first connecting frame and the second connecting frame, and the other of the first connecting frame and the second connecting frame passes through the avoidance groove, so that the first connecting frame and the second connecting frame can achieve non-interfering planar movement.

[0020] Optionally, the first driving motor and the second driving motor are connected to a controller, and an online eccentricity detector is correspondingly provided on the controller. The online eccentricity detector is provided on one side of the head body close to the opening of the installation groove for real-time detection of the eccentricity of the extruded insulating wire.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. When eccentricity occurs during the extrusion of the insulating wire, the first driving mechanism can drive the first connecting frame to move up and down, thereby driving the upper adjusting rod and the lower adjusting rod to move up and down synchronously. The upper adjusting rod and the lower adjusting rod respectively limit the upper and lower sides of the outer mold, thereby driving the outer mold to move up and down. Similarly, the second driving mechanism can drive the second moving frame to move left and right, thereby driving the outer mold to move left and right. In this way, the upper adjusting rod, the lower adjusting rod, the left adjusting rod, and the right adjusting rod can respectively limit and support the upper, lower, left, and right sides of the outer mold. The first driving mechanism can adjust the vertical displacement of the outer mold, and the second driving mechanism can adjust the horizontal displacement of the outer mold. There is no need for manual eccentricity adjustment, which helps to reduce labor costs, improve the degree of automation, and improve the adjustment efficiency of eccentricity adjustment.

[0023] 2. In this application, the first connecting frame and the second connecting frame respectively play the role of connecting the upper adjusting rod and the lower adjusting rod, and connecting the left adjusting rod and the right adjusting rod, so as to facilitate the synchronous movement of the upper adjusting rod and the lower adjusting rod, and the left adjusting rod and the right adjusting rod. In addition, the first connecting frame, the second connecting frame and the bottom wall of the installation groove jointly play a role in front and rear limiting of the outer mold, so that the outer mold can achieve precise planar movement in the installation groove.

[0024] 3. In this application, the first connecting frame, the second connecting frame and the head body are detachably connected, which is convenient for the installation and replacement of the outer mold. The upper adjusting rod and the lower adjusting rod can play a role in guiding the up and down movement, and the left adjusting rod and the right adjusting rod can play a role in guiding the left and right movement. In addition, this application can be applied to outer molds of different specifications and sizes, and the lengths of the parts of the upper adjusting rod, the lower adjusting rod, the left adjusting rod, and the right adjusting rod extending into the installation groove can be adjusted according to the specifications and sizes of the outer mold, thereby improving the applicability of this head mold.

[0025] 4. Although the first connecting frame and the second connecting frame in this application are respectively detachably connected to the head body, the first connecting frame and the second connecting frame are non-detachable connection structures with each other, avoiding the separation of the first connecting frame and the second connecting frame during the disassembly and assembly process, which affects the disassembly and assembly efficiency. Through the setting of the avoidance groove, on the one hand, it is convenient for the first connecting frame and the second connecting frame to perform relative planar movement, thereby facilitating the adjustment of the deviation of the outer mold. After disassembly, the second connecting frame can rotate in the avoidance groove, thereby changing the included angle between the first connecting frame and the second connecting frame, and making the orientation of the second arc segment gradually tend to the orientation of the first arc segment, realizing the storage of the first connecting frame and the second connecting frame, and facilitating the transportation and storage of the first connecting frame and the second connecting frame. In addition, since the second connecting frame can rotate in the avoidance groove, the first connecting frame and the second connecting frame in this application can also be applied to outer molds with a circular shape or a convex polygon with a side number of N (N>3), and can ensure the movement adjustment in at least two directions required for planar movement, improving the versatility of the first connecting frame and the second connecting frame. Brief Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall structure of an automatically offset-adjustable extrusion head die according to an embodiment of the present application.

[0027] Figure 2 It is a sectional view of an embodiment of the present application.

[0028] Figure 3 It is an exploded view of an embodiment of the present application.

[0029] Figure 4 It is an exploded view showing the first connecting frame, the second connecting frame, the first driving mechanism, and the second driving mechanism in an embodiment of the present application.

[0030] Figure 5 It is a fitting installation structure diagram showing the adaptation of the first connecting frame and the second connecting frame to an outer die with a regular hexagon shape in an embodiment of the present application.

[0031] Figure 6 It is a control schematic diagram of the controller in an embodiment of the present application.

[0032] Explanation of reference numerals: 1, head body; 11, installation groove; 12, upper adjusting rod; 13, lower adjusting rod; 14, left adjusting rod; 15, right adjusting rod; 16, limiting pressure block; 2, inner die; 3, outer die; 31, extrusion diversion channel; 32, abutting plane; 4, first connecting frame; 41, first connecting plate; 42, first locking member; 43, second locking member; 44, first arc segment; 45, avoidance groove; 5, second connecting frame; 51, second connecting plate; 52, third locking member; 53, fourth locking member; 54, second arc segment; 6, first driving mechanism; 61, first lead screw module; 62, first driving motor; 7, second driving mechanism; 71, second lead screw module; 72, second driving motor; 8, controller; 9, on-line eccentricity detector. Detailed implementation manners

[0033] The following is a further detailed description of the present application in conjunction with Figures 1 - 6 , with reference to

[0034] An embodiment of the present application discloses an automatically offset-adjustable extrusion head die. Referring to Figures 1 - 2 , an automatically offset-adjustable extrusion head die includes a head body 1. An installation groove 11 is provided at one end of the head body 1, and an inner die 2 is fixed at the other end. An outer die 3 is arranged in the installation groove 11. An extrusion diversion channel 31 is provided between the outer die 3 and the inner die 2 for guiding the molten fluid-like rubber material.

[0035] Referring to Figures 1 - 3, an upper adjusting rod 12 penetrates through the upper side of the machine head body 1, a lower adjusting rod 13 penetrates through the lower side, a left adjusting rod 14 penetrates through the left side, and a right adjusting rod 15 penetrates through the right side. The upper side of the outer mold 3 abuts against the upper adjusting rod 12, the lower side abuts against the lower adjusting rod 13, the left side abuts against the left adjusting rod 14, and the right side abuts against the right adjusting rod 15. The upper adjusting rod 12 and the lower adjusting rod 13 are connected by a first connecting frame 4, and the left adjusting rod 14 and the right adjusting rod 15 are connected by a second connecting frame 5. A first driving mechanism 6 for driving the first connecting frame 4 to move up and down and a second driving mechanism 7 for driving the second connecting frame 5 to move left and right are provided on the machine head body 1.

[0036] Referring to Figure 3 , to ensure that when the outer mold 3 is adjusted in planar motion, the upper adjusting rod 12, the lower adjusting rod 13, the left adjusting rod 14, and the right adjusting rod 15 always abut against the outer wall of the outer mold 3, thereby ensuring the deviation adjustment positioning accuracy and positioning stability of the outer mold 3, abutting planes 32 are provided on the upper, lower, left, and right sides of the outer mold 3, and the abutting planes 32 on the upper and lower sides are parallel to each other, and the abutting planes 32 on the left and right sides are parallel to each other.

[0037] Referring to Figure 1 and Figures 3 - 4 , the first driving mechanism 6 includes a first lead screw module 61 installed on the machine head body 1 and a first driving motor 62 connected to the first lead screw module 61. One end of the first connecting frame 4 is fixed with a first connecting plate 41, and the slider on the first lead screw module 61 is detachably fixed to the first connecting plate 41. In this embodiment, the slider on the first lead screw module 61 and the first connecting plate 41 are detachably fixed by bolts and nuts.

[0038] Referring to Figure 1 and Figures 3 - 4 , the second driving mechanism 7 includes a second lead screw module 71 installed on the machine head body 1 and a second driving motor 72 connected to the second lead screw module 71. One end of the second connecting frame 5 is fixed with a second connecting plate 51, and the slider on the second lead screw module 71 is detachably fixed to the second connecting plate 51. In this embodiment, the slider on the first lead screw module 61 and the first connecting plate 41 are detachably fixed by bolts and nuts.

[0039] When eccentricity occurs during the extrusion of the insulating wire, the first driving mechanism 6 can drive the first connecting frame 4 to move up and down, thereby driving the upper adjusting rod 12 and the lower adjusting rod 13 to move up and down synchronously. The upper adjusting rod 12 and the lower adjusting rod 13 respectively limit the upper and lower sides of the outer die 3, and then drive the outer die 3 to move up and down. Similarly, the second driving mechanism 7 can drive the second moving frame to move left and right, thereby driving the outer die 3 to move left and right. In this way, the upper adjusting rod 12, the lower adjusting rod 13, the left adjusting rod 14, and the right adjusting rod 15 can respectively limit and support the upper, lower, left, and right sides of the outer die 3. The first driving mechanism 6 can adjust the up and down displacement of the outer die 3, and the second driving mechanism 7 can adjust the left and right displacement of the outer die 3. There is no need for manual eccentricity adjustment, which is beneficial to reducing labor costs, improving the degree of automation, and improving the adjustment efficiency of eccentricity adjustment.

[0040] Referring to Figure 4 , both the upper adjusting rod 12 and the lower adjusting rod 13 penetrate through the first connecting frame 4. The first connecting frame 4 is provided with a first locking member 42 for locking the upper adjusting rod 12 and a second locking member 43 for locking the lower adjusting rod 13. Both the left adjusting rod 14 and the right adjusting rod 15 penetrate through the second connecting frame 5. The second connecting frame 5 is provided with a third locking member 52 for locking the left adjusting rod 14 and a fourth locking member 53 for locking the right adjusting rod 15. In this embodiment, the first locking member 42, the second locking member 43, the third locking member 52, and the fourth locking member 53 are all locking bolts. In this application, the first connecting frame 4, the second connecting frame 5, and the head body 1 are detachably connected, which is convenient for the installation and replacement of the outer die 3. Moreover, the upper adjusting rod 12 and the lower adjusting rod 13 can play a role in guiding the up and down movement, and the left adjusting rod 14 and the right adjusting rod 15 can play a role in guiding the left and right movement. In addition, this application can be applied to outer dies 3 of different specifications and sizes, and the lengths of the parts of the upper adjusting rod 12, the lower adjusting rod 13, the left adjusting rod 14, and the right adjusting rod 15 extending into the installation groove 11 can be adjusted according to the specifications and sizes of the outer die 3, thereby improving the applicability of this head die.

[0041] Referring to Figure 1 and Figure 4 , one sides of the first connecting frame 4 and the second connecting frame 5 close to the installation groove 11 are respectively abutted against the outer die 3. The first connecting frame 4 and the second connecting frame 5 in this application respectively play the role of connecting the upper adjusting rod 12 and the lower adjusting rod 13, and connecting the left adjusting rod 14 and the right adjusting rod 15, so as to facilitate the synchronous movement of the upper adjusting rod 12 and the lower adjusting rod 13, as well as the left adjusting rod 14 and the right adjusting rod 15. In addition, the first connecting frame 4, the second connecting frame 5, and the bottom wall of the installation groove 11 jointly play a role in front and rear limiting of the outer die 3, so that the outer die 3 can achieve precise planar movement in the installation groove 11.

[0042] Referring to Figure 4, to avoid interference of the first connecting frame 4 and the second connecting frame 5 with the extrusion operation of the insulating wire during static and dynamic movements, a first arc segment 44 is formed by bending the middle section of the first connecting frame 4 towards the left or right, and a second arc segment 54 is formed by bending the middle section of the second connecting frame 5 towards the upper or lower side. The inner diameters of the first arc segment 44 and the second arc segment 54 are both set to be larger than the die orifice diameter of the outer die 3.

[0043] Referring to Figure 4 , a relief groove 45 is formed in one of the first connecting frame 4 and the second connecting frame 5, and the other of the first connecting frame 4 and the second connecting frame 5 passes through the relief groove 45, so that the first connecting frame 4 and the second connecting frame 5 can achieve non-interfering planar movement. In this embodiment, the relief groove 45 is provided on the first connecting frame 4, and the middle section of the second connecting frame 5 passes through the relief groove 45.

[0044] Although the first connecting frame 4 and the second connecting frame 5 in this application are respectively detachably connected to the machine head body 1, the first connecting frame 4 and the second connecting frame 5 are non-detachable connection structures to each other, avoiding the disconnection of the first connecting frame 4 and the second connecting frame 5 during the disassembly and assembly process and affecting the disassembly and assembly efficiency; through the setting of the relief groove 45, on the one hand, it is convenient for the first connecting frame 4 and the second connecting frame 5 to perform relative planar movement, and thus it is convenient to achieve the alignment adjustment of the outer die 3. After disassembly, the second connecting frame 5 can rotate in the relief groove 45, thereby changing the included angle between the first connecting frame 4 and the second connecting frame 5, and making the orientation of the second arc segment 54 gradually tend to the orientation of the first arc segment 44, realizing the storage of the first connecting frame 4 and the second connecting frame 5, and facilitating the transportation and storage of the first connecting frame 4 and the second connecting frame 5.

[0045] In addition, referring to Figure 5 , since the second connecting frame 5 can rotate in the relief groove 45, the first connecting frame 4 and the second connecting frame 5 in this application can be applied to the outer die 3 with a circular shape or a convex polygon with the number of sides N (N>3), and can ensure the movement adjustment in at least two directions required for planar movement, improving the versatility of the first connecting frame 4 and the second connecting frame 5.

[0046] Referring to Figure 1 and Figure 3 , in order to further enhance the stability of the machine head die structure, a limit pressing block 16 for limiting the outer die 3 is fixed at the opening of the installation groove 11, and an activity space for the planar movement of the outer die 3 is formed between the limit pressing block 16 and the bottom wall of the installation groove 11.

[0047] Referring to Figure 1 and Figure 6, the first drive motor 62 and the second drive motor 72 are signal-connected to a controller 8, and the controller 8 is signal-connected to an on-line eccentricity detector 9. The on-line eccentricity detector 9 is arranged on one side of the head body 1 close to the opening of the installation groove 11 for detecting the eccentricity of the extruded insulating wire in real time. In this way, the on-line eccentricity detector 9 detects the eccentricity of the extruded insulating wire in real time, and feeds back the eccentricity of the extruded insulating wire to the controller 8 through signals. The controller 8 generates control instructions for the first drive motor 62 and the second drive motor 72 respectively according to the specific eccentricity. After the first drive motor 62 and the second drive motor 72 receive the corresponding control instructions respectively, they complete the target operations corresponding to their respective control instructions, thereby facilitating the on-line detection and automatic deviation adjustment of the eccentricity of the insulating wire, eliminating the need for manual adjustment of the eccentricity, reducing labor costs, improving the degree of automation, and improving the adjustment efficiency of the eccentricity adjustment.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An extruder head mold with automatic deviation adjustment, characterized in that: include: A machine head body (1), wherein one end of the machine head body (1) is provided with a mounting groove (11); An inner mold (2) is fixed to the other end of the machine head body (1); An outer mold (3) is arranged in the installation groove (11), and an extrusion guide channel (31) is provided between the outer mold (3) and the inner mold (2); An upper adjusting rod (12) passes through the upper side of the machine head body (1), a lower adjusting rod (13) passes through the lower side, a left adjusting rod (14) passes through the left side, and a right adjusting rod (15) passes through the right side; The upper side of the outer mold (3) abuts against the upper adjustment rod (12), the lower side abuts against the lower adjustment rod (13), the left side abuts against the left adjustment rod (14), and the right side abuts against the right adjustment rod (15); The upper adjustment rod (12) and the lower adjustment rod (13) are connected via a first connecting frame (4), and the left adjustment rod (14) and the right adjustment rod (15) are connected via a second connecting frame (5); The machine head body (1) is provided with a first driving mechanism (6) for driving the first connecting frame (4) to move up and down, and a second driving mechanism (7) for driving the second connecting frame (5) to move left and right; The outer mold (3) is provided with a contact plane (32) on the upper, lower, left and right sides, respectively, and the contact planes (32) on the upper and lower sides are parallel to each other, and the contact planes (32) on the left and right sides are parallel to each other; The first connecting frame (4) and the second connecting frame (5) are respectively in contact with the outer mold (3) at one side close to the installation groove (11); An avoidance groove (45) is provided on one of the first connecting frame (4) and the second connecting frame (5), and the other of the first connecting frame (4) and the second connecting frame (5) passes through the avoidance groove (45), so that the first connecting frame (4) and the second connecting frame (5) can achieve planar movement without interfering with each other.

2. The extruder head mold with automatic deviation adjustment according to claim 1, characterized in that: The first driving mechanism (6) comprises a first screw module (61) arranged on the machine head body (1) and a first driving motor (62) connected to the first screw module (61); a first connecting plate (41) is provided at one end of the first connecting frame (4); a sliding block on the first screw module (61) is detachably fixed to the first connecting plate (41).

3. The extruder head mold with automatic deviation adjustment according to claim 2, characterized in that: The second driving mechanism (7) comprises a second screw module (71) arranged on the machine head body (1) and a second driving motor (72) connected to the second screw module (71); a second connecting plate (51) is provided at one end of the second connecting frame (5); and a sliding block on the second screw module (71) is detachably fixed to the second connecting plate (51).

4. The extruder head mold with automatic deviation adjustment according to claim 1, characterized in that: The upper adjustment rod (12) and the lower adjustment rod (13) are both arranged to pass through the first connecting frame (4), and the first connecting frame (4) is provided with a first locking member (42) for locking the upper adjustment rod (12) and a second locking member (43) for locking the lower adjustment rod (13); The left adjusting rod (14) and the right adjusting rod (15) are both arranged to pass through the second connecting frame (5), and the second connecting frame (5) is provided with a third locking member (52) for locking the left adjusting rod (14) and a fourth locking member (53) for locking the right adjusting rod (15).

5. The extruder head mold with automatic deviation adjustment according to claim 1, characterized in that: The middle section of the first connecting frame (4) is bent toward the left or right side to form a first arc section (44), and the middle section of the second connecting frame (5) is bent toward the upper side or the lower side to form a second arc section (54), and the inner diameters of the first arc section (44) and the second arc section (54) are both larger than the die opening diameter of the outer die (3).

6. The extruder head mold with automatic deviation adjustment according to claim 3, characterized in that: The first drive motor (62) and the second drive motor (72) are connected to a controller (8), and the controller (8) is provided with an online eccentricity detector (9) correspondingly. The online eccentricity detector (9) is arranged on a side of the machine head body (1) close to the opening of the mounting groove (11) and is used for real-time detection of the eccentricity of the extruded insulating wire.

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