A precision adjustable material distributor for two-color injection molding machine

Abstract

The present invention discloses a precise adjustable material feed distributor for a two-color injection molding machine, and relates to the technical field of two-color injection molding machines, including a fixing bracket, a supporting frame is slidably connected under the fixing bracket, a material storage insulation box is rotatably connected on the supporting frame, a cooperating mechanism for adjusting the position of the material storage insulation box is provided on the supporting frame, a partition plate is provided inside the material storage insulation box, a material release regulating component is slidably connected on the partition plate, a material feeding port is provided on the material storage insulation box, a transmission barrel is provided on the side of the material storage insulation box away from the material release regulating component, a miscible anti-blocking mechanism is rotatably connected inside the transmission barrel, a locking mechanism for controlling the discharge amount of the material storage insulation box is rotatably connected at one end of the transmission barrel away from the material storage insulation box, and the transmission barrel cooperates with the injection mold. The present invention has precise control, and the material release regulating component and the locking mechanism cooperate with each other, so that the material feed of the device can accurately control the discharge flow rate and the amount of discharge.

Description

Technical Field

[0001] The invention relates to the technical field of two-color injection molding machines, in particular to a precise and adjustable material distributor for a two-color injection molding machine. Background Art

[0002] Two-color injection molding machines are already popular in the market. The so-called two-color mold is that two plastic materials are injected on the same injection molding machine, and the molding is done twice, but the product is only ejected once. The products made by this mold have more beautiful appearance, are easy to change colors, and do not need additional spraying.

[0003] Traditional two-color injection molding machines are usually unable to accurately control the amount of two plastic materials fed, and cannot adjust the size of the outlet, resulting in unsatisfactory two-color plastic products and a low product qualification rate. To this end, those skilled in the art have proposed a precision adjustable feed distributor for a two-color injection molding machine to solve the problems raised in the above background. Summary of the invention

[0004] The object of the present invention is to provide a precise and adjustable material distributor for a two-color injection molding machine to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A precision adjustable material distributor for a two-color injection molding machine comprises an adjusting bracket, a supporting frame is slidably connected to the lower part of the adjusting bracket, a material storage insulation box is rotatably connected to the supporting frame, a cooperating mechanism for adjusting the position of the material storage insulation box is arranged on the supporting frame, a partition plate is arranged inside the material storage insulation box, a material release regulating component is slidably connected to the partition plate, a feeding port is arranged on the material storage insulation box, a transmission barrel is arranged on the side of the material storage insulation box away from the material release regulating component, a miscible anti-blocking mechanism is rotatably connected inside the transmission barrel, a locking mechanism for controlling the discharge amount of the material storage insulation box is rotatably connected to the end of the transmission barrel away from the material storage insulation box, the transmission barrel cooperates with an injection mold, and the injection mold is fixedly connected to the adjusting bracket.

[0007] As a further solution of the present invention: the cooperative mechanism includes a rotary color-changing component rotatably connected to the supporting frame and used to rotate the storage insulation box; the rotary color-changing component is fixedly connected to the storage insulation box; the rotary color-changing component is connected to a sliding component for moving the storage insulation box through a bevel gear set; the sliding component is rotatably connected to the supporting frame, and the sliding component is slidably connected under the adjusting bracket.

[0008] As a further solution of the present invention: the miscible anti-blocking mechanism includes a double-axis rotary motor fixedly connected to the material storage insulation box, one end of the double-axis rotary motor is fixedly connected to a transmission gear, the transmission gear is meshed with a stirring gear rack, a locking swivel is fixedly connected to the stirring gear rack, the locking swivel is rotatably connected to the material storage insulation box, a stirring scraper is fixedly connected to the stirring gear rack, and the stirring scraper cooperates with the transmission barrel.

[0009] As a further solution of the present invention: the locking mechanism includes an inter-adjusting gear fixedly connected to one end of the dual-axis rotary motor away from the transmission gear, the inter-adjusting gear meshing with the control opening tooth ring, the control opening tooth ring is rotatably connected to the transmission barrel, and the control opening tooth ring is rotatably connected to a plurality of rotation control arc strips, the rotation control arc strip is rotatably connected to one end away from the control opening tooth ring with a material blocking arc plate, the material blocking slide plate is rotatably connected to the fixing ring, and the fixing ring is fixedly connected to the transmission barrel.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention has precise control, and the release regulating component and the locking mechanism cooperate with each other, so that the device can accurately control the discharge flow rate and the amount of discharge; 2. High safety, through the automatic regulation of the cooperative mechanism, to avoid injuries caused by close manual operation; 3. Efficient and convenient, the components cooperate with each other, which can not only improve the injection molding qualification rate, but also improve the injection molding efficiency and speed up production; 4. Easy to maintain, through the miscible anti-blocking mechanism to reduce the problem of pipe orifice blockage, reduce the maintenance times, and facilitate maintenance for operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a precision adjustable material distributor for a two-color injection molding machine;

[0012] Figure 2 The figure is a schematic diagram of the cross-sectional structure of a precision adjustable material distributor of a two-color injection molding machine;

[0013] Figure 3 It is a structural schematic diagram of a precision adjustable material distributor cooperative mechanism of a two-color injection molding machine;

[0014] Figure 4 It is a structural schematic diagram of a precision adjustable material distributor sliding assembly of a two-color injection molding machine;

[0015] Figure 5 It is a structural schematic diagram of a rotary color-changing component of a precision adjustable material distributor of a two-color injection molding machine;

[0016] Figure 6 It is a structural schematic diagram of the load-bearing slide bar portion of a precision adjustable material distributor of a two-color injection molding machine;

[0017] Figure 7 It is a structural schematic diagram of a material release control component of a precision adjustable material distributor of a two-color injection molding machine;

[0018] Figure 8 It is a schematic diagram of the internal structure of a precision adjustable material distributor transmission barrel of a two-color injection molding machine;

[0019] Fig. 9 It is a schematic diagram of the structure disassembly of a miscible anti-blocking mechanism of a precision adjustable material distributor of a two-color injection molding machine;

[0020] Fig.10 It is a structural schematic diagram of a locking mechanism of a precision adjustable material distributor of a two-color injection molding machine;

[0021] In the figure: 1. Adjustment and fixing bracket; 2. Support frame; 3. Storage and insulation box; 4. Coordination mechanism; 5. Division partition; 6. Release and control assembly; 7. Feeding port; 8. Transmission barrel; 9. Miscible anti-blocking mechanism; 10. Locking mechanism; 11. Injection mold; 12. Rotation color-changing assembly; 13. Sliding assembly; 14. Bipolar motor; 15. Driving gear; 16. Linkage gear; 17. Rotation anchor rod; 18. Retention supplement block; 19. Waiting groove wheel; 20. Shifting toggle bar; 21. Adjustment Angle shift shaft; 22, rotary shaft; 23, transfer gear; 24, double-sided toothed plates; 25, follower block; 26, control and shift telescopic rod; 27, fixed slider; 28, load-bearing slider; 29, beam slider; 30, push hydraulic rod; 31, feed pressure regulating plate; 32, double-axis rotary motor; 33, transmission gear; 34, stirring gear rack; 35, locking swivel; 36, stirring scraper; 37, inter-adjustment gear; 38, control opening gear ring; 39, rotation control arc strip; 40, material blocking arc plate; 41, fixed ring. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0026] Example 1: Please refer to Figure 1-Figure 10 , including an adjusting and fixing bracket 1, a supporting frame 2 is slidably connected to the lower part of the adjusting and fixing bracket 1, a storage insulation box 3 is rotatably connected to the supporting frame 2, a cooperating mechanism 4 for adjusting the position of the storage insulation box 3 is arranged on the supporting frame 2, a partition plate 5 is arranged inside the storage insulation box 3, a release regulating component 6 is slidably connected to the partition plate 5, a feeding port 7 is arranged on the storage insulation box 3, a transmission barrel 8 is arranged on the side of the storage insulation box 3 away from the release regulating component 6, a miscible anti-blocking mechanism 9 is rotatably connected inside the transmission barrel 8, and a locking mechanism 10 for controlling the discharge amount of the storage insulation box 3 is rotatably connected to the end of the transmission barrel 8 away from the storage insulation box 3, the transmission barrel 8 cooperates with an injection mold 11, and the injection mold 11 is fixedly connected to the adjusting and fixing bracket 1.

[0027] The cooperative mechanism 4 includes a rotary color-changing component 12 rotatably connected to the supporting frame 2 for rotating the material storage insulation box 3. The rotary color-changing component 12 is fixedly connected to the material storage insulation box 3. The rotary color-changing component 12 is connected to a sliding component 13 for moving the material storage insulation box 3 through a bevel gear set. The sliding component 13 is rotatably connected to the supporting frame 2, and the sliding component 13 is slidably connected under the adjusting and fixing bracket 1.

[0028] The rotary color-changing assembly 12 includes a bipolar motor 14 fixedly connected to the supporting frame 2, one end of the bipolar motor 14 is fixedly connected to a driving gear 15, the driving gear 15 is meshed with a linkage gear 16, a rotation anchor rod 17 is fixedly connected to the linkage gear 16, a fixed supplementary block 18 is fixedly connected to the rotation anchor rod 17, the fixed supplementary block 18 is meshed with a groove wheel 19 to be rotated, the groove wheel 19 to be rotated is fixedly connected to the material storage insulation box 3, a shifting toggle bar 20 is fixedly connected to the rotation anchor rod 17, an angle adjustment dial shaft 21 is fixedly connected to the shifting toggle bar 20, and the angle adjustment dial shaft 21 cooperates with the groove wheel 19 to be rotated.

[0029] First, injection molding raw materials are added to the storage insulation box 3 through the feeding port 7, and then the driving gear 15 is driven by the bipolar motor 14 to rotate, and then the linkage gear 16 is driven to rotate, so that the fixing supplement block 18 on the rotation anchor rod 17 and the angle adjustment shaft 21 on the shifting dial bar 20 cooperate with the waiting groove wheel 19 to drive the storage insulation box 3 to rotate, and feed the feeding port 7 on the other side.

[0030] Example 2: Please refer to Figure 1-Figure 10 , including an adjusting and fixing bracket 1, a supporting frame 2 is slidably connected to the lower part of the adjusting and fixing bracket 1, a storage insulation box 3 is rotatably connected to the supporting frame 2, a cooperating mechanism 4 for adjusting the position of the storage insulation box 3 is arranged on the supporting frame 2, a partition plate 5 is arranged inside the storage insulation box 3, a release regulating component 6 is slidably connected to the partition plate 5, a feeding port 7 is arranged on the storage insulation box 3, a transmission barrel 8 is arranged on the side of the storage insulation box 3 away from the release regulating component 6, a miscible anti-blocking mechanism 9 is rotatably connected inside the transmission barrel 8, and a locking mechanism 10 for controlling the discharge amount of the storage insulation box 3 is rotatably connected to the end of the transmission barrel 8 away from the storage insulation box 3, the transmission barrel 8 cooperates with an injection mold 11, and the injection mold 11 is fixedly connected to the adjusting and fixing bracket 1.

[0031] The cooperative mechanism 4 includes a rotary color-changing component 12 rotatably connected to the supporting frame 2 for rotating the material storage insulation box 3. The rotary color-changing component 12 is fixedly connected to the material storage insulation box 3. The rotary color-changing component 12 is connected to a sliding component 13 for moving the material storage insulation box 3 through a bevel gear set. The sliding component 13 is rotatably connected to the supporting frame 2, and the sliding component 13 is slidably connected under the adjusting and fixing bracket 1.

[0032] The rotary color-changing assembly 12 includes a bipolar motor 14 fixedly connected to the supporting frame 2, one end of the bipolar motor 14 is fixedly connected to a driving gear 15, the driving gear 15 is meshed with a linkage gear 16, a rotation anchor rod 17 is fixedly connected to the linkage gear 16, a fixed supplementary block 18 is fixedly connected to the rotation anchor rod 17, the fixed supplementary block 18 is meshed with a groove wheel 19 to be rotated, the groove wheel 19 to be rotated is fixedly connected to the material storage insulation box 3, a shifting toggle bar 20 is fixedly connected to the rotation anchor rod 17, an angle adjustment dial shaft 21 is fixedly connected to the shifting toggle bar 20, and the angle adjustment dial shaft 21 cooperates with the groove wheel 19 to be rotated.

[0033] First, injection molding raw materials are added to the storage insulation box 3 through the feeding port 7, and then the driving gear 15 is driven by the bipolar motor 14 to rotate, and then the linkage gear 16 is driven to rotate, so that the fixing supplement block 18 on the rotation anchor rod 17 and the angle adjustment shaft 21 on the shifting dial bar 20 cooperate with the waiting groove wheel 19 to drive the storage insulation box 3 to rotate, and feed the feeding port 7 on the other side.

[0034] The sliding assembly 13 includes a rotating shaft 22 that is transmission-connected to the bipolar motor 14, the rotating shaft 22 is rotationally connected to the supporting frame 2, a transfer gear 23 is fixedly connected above the rotating shaft 22, the transfer gear 23 is meshed with the double-sided toothed plates 24, a follower block 25 is fixedly connected to the middle of the upper part of the double-sided toothed plates 24, a control and shift telescopic rod 26 is fixedly connected to the follower block 25, and the control and shift telescopic rod 26 is fixedly connected to the adjusting and fixing bracket 1 through a positioning block, and a retaining slider 27 is fixedly connected to both sides of the upper part of the double-sided toothed plates 24, and the retaining slider 27 is slidingly connected to the adjusting and fixing bracket 1.

[0035] A group of load-bearing sliding bars 28 are fixedly connected to the adjusting and fixing bracket 1 , and a plurality of position-binding sliding bars 29 are slidably connected to the load-bearing sliding bars 28 . The position-binding sliding bars 29 are fixedly connected to the supporting frame 2 .

[0036] At the same time, the control of the double-sided toothed plates 24 by the telescopic rod 26 causes the transfer gear 23 to rotate and drive the supporting frame 2 to move, thereby making the transmission barrel 8 match the injection mold 11.

[0037] The release regulating assembly 6 includes a pushing hydraulic rod 30 fixedly connected to the groove wheel 19 to be turned, the pushing hydraulic rod 30 is fixedly connected to the groove wheel 19 to be turned, a feeding pressure regulating plate 31 is fixedly connected to the pushing hydraulic rod 30, and the feeding pressure regulating plate 31 is slidably connected to the material storage insulation box 3.

[0038] Then, the feeding pressure regulating plate 31 is driven to move by pushing the hydraulic rod 30 to adjust the discharge amount.

[0039] The miscible anti-blocking mechanism 9 includes a double-axis rotary motor 32 fixedly connected to the material storage insulation box 3, one end of the double-axis rotary motor 32 is fixedly connected to a transmission gear 33, the transmission gear 33 is meshed with a stirring gear rack 34, a locking swivel 35 is fixedly connected to the stirring gear rack 34, the locking swivel 35 is rotatably connected to the material storage insulation box 3, a stirring and scraping paddle 36 is fixedly connected to the stirring gear rack 34, and the stirring and scraping paddle 36 cooperates with the transmission barrel 8.

[0040] At the same time, the dual-axis rotary motor 32 drives the transmission gear 33 to rotate, and then drives the stirring gear rack 34 to rotate, so that the stirring and scraping paddles 36 stir and scrape the plastic inside the transmission barrel 8 to avoid blockage.

[0041] The locking mechanism 10 includes an inter-adjusting gear 37 fixedly connected to the end of the dual-axis rotary motor 32 away from the transmission gear 33, the inter-adjusting gear 37 is meshed with a control opening tooth ring 38, the control opening tooth ring 38 is rotatably connected to the transmission barrel 8, and a plurality of rotation control arc strips 39 are rotatably connected to the control opening tooth ring 38. The rotation control arc strip 39 is rotatably connected to the end away from the control opening tooth ring 38 with a material blocking arc plate 40, and the material blocking slide plate is rotatably connected to a fixing ring 41, and the fixing ring 41 is fixedly connected to the transmission barrel 8.

[0042] At the same time, the control opening gear ring 38 is driven to rotate through the intermediate adjustment gear 37, and the material blocking arc plate 40 is adjusted through the rotation control arc bar 39 to control the discharge speed.

[0043] The working principle of the present invention is:

[0044] First, the injection molding raw material is added to the storage insulation box 3 through the feeding port 7, and then the bipolar motor 14 drives the driving gear 15 to rotate, and then drives the linkage gear 16 to rotate, so that the fixed supplementary block 18 on the rotation anchor rod 17 and the angle adjustment shaft 21 on the shifting and shifting bar 20 cooperate with the waiting groove wheel 19 to drive the storage insulation box 3 to rotate and feed the feeding port 7 on the other side. At the same time, the control of the double-sided tooth plate 24 by the control and shift telescopic rod 26 makes the shifting gear 23 rotate to drive the supporting frame 2 to move, and then the transmission barrel 8 cooperates with the injection mold 11. Then, the feeding pressure regulating plate 31 is driven to move by pushing the hydraulic rod 30 to adjust the discharge amount. At the same time, the transmission gear 33 is driven to rotate by the dual-axis rotating motor 32, and then the stirring gear frame 34 is driven to rotate, so that the mixing and scraping paddle 36 stirs and scrapes the plastic inside the transmission barrel 8 to avoid blockage. At the same time, the control opening gear ring 38 is driven to rotate through the intermediate adjustment gear 37, and the material blocking arc plate 40 is adjusted through the rotation control arc bar 39 to control the discharge speed.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A precision adjustable material distributor for a two-color injection molding machine, comprising an adjustable bracket (1), characterized in that: A supporting frame (2) is slidably connected to the bottom of the adjusting and fixing bracket (1), a material storage insulation box (3) is rotatably connected to the supporting frame (2), a cooperating mechanism (4) for adjusting the position of the material storage insulation box (3) is provided on the supporting frame (2), a partition plate (5) is provided inside the material storage insulation box (3), a material release regulating component (6) is slidably connected to the partition plate (5), a material adding port (7) is provided on the material storage insulation box (3), a transmission barrel (8) is provided on the side of the material storage insulation box (3) away from the material release regulating component (6), a miscible anti-blocking mechanism (9) is rotatably connected to the inside of the transmission barrel (8), and a control mechanism (9) is rotatably connected to the end of the transmission barrel (8) away from the material storage insulation box (3) The invention discloses a locking mechanism (10) for adjusting the discharge amount of the material storage insulation box (3); the transmission barrel (8) cooperates with the injection mold (11); the injection mold (11) is fixedly connected to the adjustment bracket (1); the cooperation mechanism (4) comprises a rotary color-changing component (12) rotatably connected to the supporting frame (2) and used for rotating the material storage insulation box (3); the rotary color-changing component (12) is fixedly connected to the material storage insulation box (3); the rotary color-changing component (12) is connected to a sliding component (13) for moving the material storage insulation box (3) through a bevel gear group transmission; the sliding component (13) is rotatably connected to the supporting frame (2); and the sliding component (13) is slidably connected below the adjustment bracket (1).

2. The precise adjustable material distributor for a two-color injection molding machine according to claim 1, characterized in that: The rotary color-changing assembly (12) comprises a bipolar motor (14) fixedly connected to a supporting frame (2); one end of the bipolar motor (14) is fixedly connected to a driving gear (15); the driving gear (15) is meshed with a linkage gear (16); a rotary anchor rod (17) is fixedly connected to the linkage gear (16); a fixed supplementary block (18) is fixedly connected to the rotary anchor rod (17); the fixed supplementary block (18) is meshed with a groove wheel to be rotated (19); the groove wheel to be rotated (19) is fixedly connected to a material storage insulation box (3); a shifting toggle bar (20) is fixedly connected to the rotary anchor rod (17); an angle adjustment shaft (21) is fixedly connected to the shifting toggle bar (20); the angle adjustment shaft (21) cooperates with the groove wheel to be rotated (19).

3. The precise adjustable material distributor for a two-color injection molding machine according to claim 1 or 2, characterized in that: The sliding assembly (13) comprises a rotating shaft (22) which is transmission-connected to the bipolar motor (14); the rotating shaft (22) is rotationally connected to the supporting frame (2); a transfer gear (23) is fixedly connected to the top of the rotating shaft (22); the transfer gear (23) is meshed with the double-sided toothed plates (24); a follower block (25) is fixedly connected to the middle of the top of the double-sided toothed plates (24); a control-shift telescopic rod (26) is fixedly connected to the follower block (25); the control-shift telescopic rod (26) is fixedly connected to the adjusting bracket (1) via a positioning block; a retaining slider (27) is fixedly connected to both sides of the top of the double-sided toothed plates (24); the retaining slider (27) is slidably connected to the adjusting bracket (1).

4. The precise adjustable material distributor for a two-color injection molding machine according to claim 3, characterized in that: A group of load-bearing sliding bars (28) are fixedly connected to the adjusting and fixing bracket (1), a plurality of position-binding sliding bars (29) are slidably connected to the load-bearing sliding bars (28), and the position-binding sliding bars (29) are fixedly connected to the supporting frame (2).

5. The precise adjustable material distributor for a two-color injection molding machine according to claim 3, characterized in that: The material release regulating assembly (6) comprises a pushing hydraulic rod (30) fixedly connected to the groove wheel to be turned (19), the pushing hydraulic rod (30) being fixedly connected to the groove wheel to be turned (19), a feeding pressure regulating plate (31) being fixedly connected to the pushing hydraulic rod (30), and the feeding pressure regulating plate (31) being slidably connected to the material storage insulation box (3).

6. The precise adjustable material distributor for a two-color injection molding machine according to claim 1, characterized in that: The miscible anti-blocking mechanism (9) comprises a double-axis rotary motor (32) fixedly connected to the material storage insulation box (3), one end of the double-axis rotary motor (32) is fixedly connected to a transmission gear (33), the transmission gear (33) is meshed with a stirring gear rack (34), a locking swivel (35) is fixedly connected to the stirring gear rack (34), the locking swivel (35) is rotatably connected to the material storage insulation box (3), and a stirring scraper (36) is fixedly connected to the stirring gear rack (34), and the stirring scraper (36) cooperates with the transmission barrel (8).

7. The precise adjustable material distributor for a two-color injection molding machine according to claim 6, characterized in that: The locking mechanism (10) comprises an inter-adjusting gear (37) fixedly connected to one end of the dual-axis rotary motor (32) away from the transmission gear (33), the inter-adjusting gear (37) meshingly cooperates with a control opening tooth ring (38), the control opening tooth ring (38) is rotatably connected to the transmission barrel (8), a plurality of rotation control arc strips (39) are rotatably connected to the control opening tooth ring (38), one end of the rotation control arc strip (39) away from the control opening tooth ring (38) is rotatably connected to a material blocking arc plate (40), the material blocking slide plate is rotatably connected to a fixing ring (41), and the fixing ring (41) is fixedly connected to the transmission barrel (8).

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