Discharging control structure for bulking machine

Abstract

The utility model discloses a blanking control structure for a bulking machine, which comprises a hopper, the bottom of the hopper is rotatably connected with a guide groove pipe, the side of the hopper is fixedly connected with a screw rod, the hopper is provided with an arc-shaped groove matched with the screw rod, and the outer wall of the screw rod is connected with a nut in a threaded penetrating manner. A limiting mechanism used for locking the position of the nut is arranged at the top of the guide groove pipe, the limiting mechanism comprises a bearing plate and a protection rod, the bearing plate is located above the nut, the fixing cylinder is located at the bottom of the bearing plate, and the connecting ring is located outside the protection rod. Through mutual cooperation of the screw rod, the nut, the supporting plate, the bearing plate, the protection rod, the mounting column, the fixing cylinder, the connecting ring and the spring, the connecting ring drives the protection rod to move, the protection rod limits the relative position of the nut and the screw rod, then the nut and the screw rod are limited and protected after the guide groove pipe is mounted, and the service life of the guide groove pipe is prolonged. And random rotation of the nut can be conveniently prevented.

Description

Technical Field

[0001] The utility model relates to the field of the blanking control structure of an extruder, in particular to the blanking control structure for an extruder. Background Art

[0002] An extruder is usually a common puffing equipment for processing puffed foods. The extruder can make the volume of the food increase after puffing. The extruder has a wide range of uses. When the extruder is in use, a blanking operation will be carried out. In order to control the blanking, a blanking control structure will be used accordingly.

[0003] An extruder for processing aquatic feed with a blanking cut-off structure mentioned in the application number 202122349446.3 includes an extruder main body. A hopper is installed below the discharge end of the extruder main body. The bottom of the hopper is fixedly communicated with a material pipe. The bottom of the material pipe is rotatably connected with a guiding groove pipe through a shaft rod. An arc groove is opened on the side wall of the guiding groove pipe, and the arc groove is concentric with the shaft rod. A screw rod fixedly installed on the outer wall of the material pipe is inserted into the arc groove, and a nut is threadedly connected to the outer side of the screw rod. A rubber pad is fixedly arranged on the side of the nut close to the guiding groove pipe.

[0004] Among them, the guiding groove pipe rotates around the shaft rod to control the cut-off of the extruder blanking. The guiding groove pipe is connected to the screw rod, and the nut limits the relative position of the screw rod and the guiding groove pipe. At the same time, to make the guiding groove pipe rotatable, usually a rubber pad is used to increase the friction between the nut and the guiding groove pipe. However, when the guiding groove pipe rotates multiple times, there will be a situation where the guiding groove pipe drives the rubber pad to rotate, and the rotation of the rubber pad drives the nut to rotate, which will cause the nut to rotate and loosen. As a result, during a certain blanking, the puffed food will fall, and the guiding groove pipe is not convenient for limiting and protecting between the nut and the screw rod, which has certain limitations. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a blanking control structure for an extruder to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A blanking control structure for an extruder, including:

[0007] A hopper, the bottom of the hopper is rotatably connected with a guiding groove pipe, the side of the hopper is fixedly connected with a screw rod, an arc groove matched with the screw rod is opened on the side of the hopper, and a nut is threadedly inserted through the outer wall of the screw rod;

[0008] A limiting mechanism for locking the position of the nut is arranged at the top of the guiding groove pipe. The limiting mechanism includes:

[0009] A bearing plate and a protection rod, the bearing plate being located above the nut, the protection rod being slidably disposed on the nut, and the protection rod being used for locking the connection position between the nut and the screw rod;

[0010] A fixed cylinder, a connecting ring and a spring, the fixed cylinder being located at the bottom of the bearing plate, the connecting ring being located outside the protection rod, the spring being sleeved outside the protection rod, the connecting ring being used for driving the protection rod to move vertically, and the spring being used for driving the connecting ring to move vertically.

[0011] Preferably, a shaft rod is fixedly connected to the side of the hopper, a circular groove is formed in the side of the guiding groove pipe, the shaft rod is rotatably inserted into the inner cavity of the circular groove, support plates are symmetrically and fixedly connected to the top end of the guiding groove pipe, and the side of the support plate is fixedly connected to the bearing plate.

[0012] Preferably, a first sliding groove is formed in the outer part of the nut, a limiting groove is formed in the outer wall of the screw rod, the protection rod is slidably inserted into the inner cavities of the first sliding groove and the limiting groove, and a second sliding groove matched with the protection rod is formed at the bottom end of the fixed cylinder.

[0013] Preferably, the top end of the fixed cylinder is fixedly connected to the bearing plate, a threaded groove is formed in the top end of the bearing plate, an installation column is threadedly inserted into the inner cavity of the threaded groove, and the outer wall of the protection rod is slidably inserted into the middle part of the installation column.

[0014] Preferably, the protection rod is slidably inserted into the inner cavity of the connecting ring, an installation bolt is threadedly inserted into the outer wall of the connecting ring, one end of the installation bolt is threadedly inserted into the protection rod, one end of the spring is attached to the connecting ring, and the other end of the spring is attached to the installation column.

[0015] Preferably, a positioning frame is fixedly connected to the top end of the installation column, a positioning column for locking the position of the protection rod is slidably inserted into the inner cavity of the positioning frame, a connecting plate is fixedly connected to the side part of the positioning column, an anti-loss rope is fixedly connected to the side part of the connecting plate, one end of the anti-loss rope is fixedly connected to the positioning frame, and a positioning groove matched with the positioning column is formed in the outer part of the protection rod.

[0016] The technical effects and advantages of the present utility model:

[0017] By using the mutual cooperation of the screw rod, the nut, the support plate, the bearing plate, the protection rod, the installation column, the fixed cylinder, the connecting ring and the spring, the protection rod slides on the bearing plate and the fixed cylinder, the elastic force of the spring pushes the connecting ring to move, the connecting ring drives the protection rod to move, and the protection rod limits the relative position of the nut and the screw rod. Further, it is beneficial to limit and protect the nut and the screw rod after the guiding groove pipe is installed, which is convenient for preventing the nut from rotating randomly and increasing the stability of the use of the guiding groove pipe. Brief Description of the Drawings

[0018] Figure 1 This is a front structural schematic diagram of the present utility model.

[0019] Figure 2 This is a front sectional structural schematic diagram of the present utility model at the bearing plate.

[0020] Figure 3 This is a structural schematic diagram of the present utility model at the bearing plate.

[0021] In the figure: 1, hopper; 2, guiding chute pipe; 3, shaft rod; 4, screw; 5, nut; 6, limiting mechanism; 61, support plate; 62, bearing plate; 63, protection rod; 64, mounting post; 65, fixed cylinder; 66, connecting ring; 67, spring; 68, mounting bolt; 7, positioning frame; 8, positioning post; 9, connecting plate; 10, anti-loss rope. Detailed Description of the Preferred Embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides a feeding control structure for an extruder as shown in Figures 1 - 3 the figure, which includes a hopper 1. The bottom of the hopper 1 is rotatably connected to a guiding chute pipe 2. A screw 4 is fixedly connected to the side of the hopper 1. An arc-shaped groove matching with the screw 4 is formed on the side of the hopper 1. The outer wall of the screw 4 is threadedly inserted with a nut 5.

[0024] Furthermore, a limiting mechanism 6 for locking the position of the nut 5 is provided at the top of the guide groove tube 2. The limiting mechanism 6 includes a bearing plate 62 and a protection rod 63. The bearing plate 62 facilitates the sliding of the protection rod 63 thereon and supports the protection rod 63. The protection rod 63 is conducive to defining the relative positions of the nut 5 and the screw rod 4. Furthermore, after the guide groove tube 2 is fastened, the nut 5 can be limited and protected to prevent the nut 5 from rotating randomly. After the guide groove tube 2 is fastened and can rotate, at this time, the first chute of the nut 5 corresponds to the protection rod 63. The bearing plate 62 is located above the nut 5. The protection rod 63 is slidably arranged on the nut 5. The protection rod 63 is used to lock the connection position of the nut 5 and the screw rod 4, a fixed cylinder 65, a connecting ring 66 and a spring 67. The fixed cylinder 65 facilitates the sliding of the protection rod 63 thereon and supports the protection rod 63. The connecting ring 66 is conducive to driving the protection rod 63 to move and facilitating the traction operation of the protection rod 63. The elastic force of the spring 67 is conducive to pushing the connecting ring 66 to move, facilitating the connecting ring 66 and the protection rod 63 to return to the original position after movement, and facilitating the repeated operation of the protection rod 63. The fixed cylinder 65 is located at the bottom of the bearing plate 62. The connecting ring 66 is located outside the protection rod 63. The spring 67 is sleeved outside the protection rod 63. The connecting ring 66 is used to drive the protection rod 63 to move vertically. The spring 67 is used to drive the connecting ring 66 to move vertically.

[0025] Specifically, a shaft rod 3 is fixedly connected to the side of the hopper 1. A circular groove is formed in the side of the guide groove tube 2. The shaft rod 3 is rotatably inserted into the inner cavity of the circular groove. Symmetrically fixed to the top of the guide groove tube 2 are support plates 61, which are conducive to supporting the bearing plate 62. The side of the support plate 61 is fixedly connected to the bearing plate 62.

[0026] Specifically, a first chute is formed in the outer wall of the nut 5, and a limiting groove is formed in the outer wall of the screw rod 4. The protection rod 63 is slidably inserted into the inner cavities of both the first chute and the limiting groove. A second chute matching the protection rod 63 is formed at the bottom end of the fixed cylinder 65.

[0027] Specifically, the top end of the fixed cylinder 65 is fixedly connected to the bearing plate 62. A threaded groove is formed in the top end of the bearing plate 62. An installation post 64 is threadedly inserted into the inner cavity of the threaded groove, which is conducive to the installation and disassembly of the protection rod 63, and further conducive to the installation and disassembly of the spring 67. The outer wall of the protection rod 63 is slidably inserted into the middle of the installation post 64.

[0028] Specifically, the protection rod 63 is slidably inserted into the inner cavity of the connecting ring 66. The outer wall of the connecting ring 66 is threadedly inserted with a mounting bolt 68, which is beneficial for the installation and disassembly of the connecting ring 66, and facilitates the installation and disassembly of the protection rod 63 and the spring 67. One end of the mounting bolt 68 is threadedly inserted into the protection rod 63. One end of the spring 67 is in contact with the connecting ring 66, and the other end of the spring 67 is in contact with the mounting post 64.

[0029] Specifically, a positioning frame 7 is fixedly connected to the top end of the mounting post 64, which is beneficial for the positioning post 8 to slide thereon. A positioning post 8 for locking the position of the protection rod 63 is slidably inserted into the inner cavity of the positioning frame 7. After the protection rod 63 moves away from the nut 5, it is beneficial to limit the position of the protection rod 63 to prevent the protection rod 63 from affecting the rotation operation of the nut 5. A connecting plate 9 is fixedly connected to the side of the positioning post 8, which is beneficial for pulling the positioning post 8 to move. A retaining cord 10 is fixedly connected to the side of the connecting plate 9, which is beneficial for limiting and protecting the positioning post 8 and the connecting plate 9 to prevent the positioning post 8 from being lost at will. One end of the retaining cord 10 is fixedly connected to the positioning frame 7, and a positioning groove matching with the positioning post 8 is formed in the outer part of the protection rod 63.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The feeding control structure for an extruder, comprising: A hopper (1), a guiding groove pipe (2) is rotatably connected to the bottom of the hopper (1), a screw rod (4) is fixedly connected to the side of the hopper (1), an arc-shaped groove matching with the screw rod (4) is formed on the side of the hopper (1), and a nut (5) is threadedly inserted through the outer wall of the screw rod (4); It is characterized in that a limiting mechanism (6) for locking the position of the nut (5) is arranged at the top of the guiding groove pipe (2), and the limiting mechanism (6) comprises: A bearing plate (62) and a protection rod (63), the bearing plate (62) is located above the nut (5), the protection rod (63) is slidably arranged on the nut (5), and the protection rod (63) is used for locking the connection position between the nut (5) and the screw rod (4); A fixed cylinder (65), a connecting ring (66) and a spring (67), the fixed cylinder (65) is located at the bottom of the bearing plate (62), the connecting ring (66) is located outside the protection rod (63), the spring (67) is sleeved outside the protection rod (63), the connecting ring (66) is used for driving the protection rod (63) to move vertically, and the spring (67) is used for driving the connecting ring (66) to move vertically.

2. The feeding control structure for an extruder according to claim 1, characterized in that, A shaft rod (3) is fixedly connected to the side of the hopper (1), a circular groove is formed on the side of the guiding groove pipe (2), the shaft rod (3) is rotatably inserted through the inner cavity of the circular groove, symmetrically fixed support plates (61) are arranged at the top end of the guiding groove pipe (2), and the side of the support plate (61) is fixedly connected to the bearing plate (62).

3. The feeding control structure for an extruder according to claim 1, characterized in that A first sliding groove is formed on the outer part of the nut (5), a limiting groove is formed on the outer wall of the screw rod (4), the protection rod (63) is slidably inserted through the inner cavities of the first sliding groove and the limiting groove, and a second sliding groove matching with the protection rod (63) is formed at the bottom end of the fixed cylinder (65).

4. The blanking control structure for an extruder according to claim 1, wherein, The top end of the fixed cylinder (65) is fixedly connected to the bearing plate (62), a threaded groove is formed on the top end of the bearing plate (62), a mounting column (64) is threadedly inserted through the inner cavity of the threaded groove, and the outer wall of the protection rod (63) is slidably inserted through the middle part of the mounting column (64).

5. The blanking control structure for an extruder according to claim 1, characterized in that, The protection rod (63) is slidably inserted through the inner cavity of the connecting ring (66), a mounting bolt (68) is threadedly inserted through the outer wall of the connecting ring (66), one end of the mounting bolt (68) is threadedly inserted through the protection rod (63), one end of the spring (67) is in contact with the connecting ring (66), and the other end of the spring (67) is in contact with the mounting column (64).

6. The blanking control structure for an extruder according to claim 4, characterized in that, A positioning frame (7) is fixedly connected to the top end of the mounting column (64), a positioning column (8) for locking the position of the protection rod (63) is slidably inserted through the inner cavity of the positioning frame (7), a connecting plate (9) is fixedly connected to the side part of the positioning column (8), an anti-loss rope (10) is fixedly connected to the side part of the connecting plate (9), one end of the anti-loss rope (10) is fixedly connected to the positioning frame (7), and a positioning groove matching with the positioning column (8) is formed on the outer part of the protection rod (63).

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