Anti bridging device for cable extruder hopper

Abstract

This utility model relates to the technical field of cable processing equipment and discloses a vibratory anti-bridging device for a cable extruder hopper. The device includes a hopper body with a discharge port at the bottom and an anti-bridging device inside. In the anti-bridging device, a support frame is horizontally fixed to the top of the hopper, with a drive motor installed at its center. The output end of the drive motor is connected to a swing arm, which includes a crossbar. Both ends of the crossbar are connected to stirring rods, and a scraper is located at the bottom. Two connecting rods are symmetrically arranged inside the crossbar, and an extrusion block is fixed on the connecting rod. The support frame is fixed inside the hopper, and a striking rod is slidably installed inside a hollow sleeve in the middle. The top of the striking rod is connected to a contact block via the connecting rod, and the side of the contact block facing the extrusion block is an inclined or arc-shaped surface. This device uses a drive motor to rotate the swing arm, causing the extrusion block to push the contact block, which in turn causes the striking rod to vibrate at high frequency. Combined with the stirring rod's agitation, this effectively breaks the bridging structure of the material inside the hopper, improving feeding efficiency. The device has a simple structure, low energy consumption, and strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of cable processing equipment technology, specifically to a vibratory anti-bridging device for a cable extruder hopper. Background Technology

[0002] During the cable extrusion process, plastic particles or powder in the hopper often form bridging due to gravity, friction and static electricity. This means that the material accumulates in an arch shape and blocks the discharge port, resulting in poor material discharge and affecting extrusion efficiency and cable quality.

[0003] Chinese patent CN 210913772 U discloses a feeding anti-bridging device, including an anti-bridging device body. Support seats are fixedly installed on both outer surfaces of the lower end of the anti-bridging device body. A motor is installed on the upper outer surface of the support seats. A transmission rod is installed on the outer surface of the middle front end of the motor. Stirring rods are installed on both outer surfaces of the transmission rod. This invention uses a counter-arranged stirring rod design, which creates spaces in the middle that cannot be stirred, thus affecting the bridging breaking effect. Utility Model Content

[0004] To solve the above problems, the present invention adopts the following technical solution.

[0005] A vibratory anti-bridging device for a cable extruder hopper includes a hopper body with a discharge port at the bottom. An anti-bridging device is installed inside the hopper body. The anti-bridging device includes a support frame one, which is horizontally positioned at the top of the hopper body. A drive motor is vertically mounted on the support frame at the center of the hopper body. A swing arm is connected to the output end of the drive motor. An extrusion block is mounted on the swing arm. A second support frame is also installed inside the hopper body. A striker is vertically slidably mounted in the middle of the second support frame. A connecting rod one is mounted at the top of the striker one. A contact block is mounted on the outward-facing end of the connecting rod one corresponding to the extrusion block. The side of the contact block facing the contact block is an inwardly inclined downward slope or a circular arc surface.

[0006] Preferably, the swing arm includes a crossbar, the center of which is connected to the output end of the drive motor. Both ends of the crossbar are connected to stirring rods facing downwards, and the bottom of the stirring rods is provided with scrapers. A second connecting rod is symmetrically arranged on the crossbar inside the stirring rod with the drive motor as the center. The extrusion block is arranged on the second connecting rod and is located on the inward side.

[0007] Preferably, the two stirring rods are of different lengths.

[0008] Preferably, a hollow sleeve is vertically arranged in the middle of the second support frame, the impact rod is slidably arranged inside the hollow sleeve, the inner wall of the hollow sleeve is provided with a groove, and the outer wall of the impact rod is provided with a slide bar, which slides in the groove.

[0009] Preferably, the impact rod is also provided with a limit ring.

[0010] Preferably, a sleeve is provided at the bottom of the crossbar corresponding to the position of the impact bar, and a spring is fitted on the sleeve, with the lower end of the spring contacting the upper end of the tray provided at the top of the impact bar.

[0011] Preferably, the bottom end of the striking rod is provided with a pointed part.

[0012] Preferably, the side wall of the impact bar is provided with a spike bar that extends vertically upwards.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention employs a combination of vibration and stirring. The high-frequency vibration of the impact rod directly disrupts bridging, while the stirring rod prevents material accumulation, thus achieving a dual anti-bridging effect.

[0014] The spring design in this invention effectively increases the impact force when the impact bar moves downward, thereby improving the anti-bridging effect.

[0015] The spikes in this invention can break up and bridge materials in both the upward and downward directions when there is excessive accumulation. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the extrusion block and the contact block of this utility model; Figure 3 This is a cross-sectional view of the hollow sleeve of this utility model.

[0017] In the diagram: 1. Hopper body; 2. Discharge port; 3. Support frame one; 4. Drive motor; 5. Swing rod; 51. Crossbar; 52. Stirring rod; 53. Scraper; 54. Connecting rod two; 55. Sleeve rod; 551. Spring; 6. Extrusion block; 7. Support frame two; 71. Hollow sleeve; 711. Slide groove; 8. Impact rod; 81. Sliding strip; 82. Limiting ring; 83. Tip; 84. Spike rod; 85. Tray; 9. Connecting rod one; 10. Contact block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0021] like Figure 1-3 As shown, in this embodiment, a vibratory anti-bridging device for a cable extruder hopper includes a hopper body 1, a discharge port 2 at the bottom of the hopper body 1, and an anti-bridging device inside the hopper body 1. In this embodiment, the hopper body 1 is made of stainless steel, and the bottom discharge port 2 is connected to the extruder inlet.

[0022] In this embodiment, the anti-bridging device includes a support frame 3, which is horizontally arranged on the top of the hopper body 1. A drive motor 4 is vertically arranged on the support frame 3 and located at the center of the hopper body 1. A swing rod 5 is key-connected to the output end of the drive motor 4. An extrusion block 6 is arranged on the swing rod 5. A support frame 7 is also welded inside the hopper body 1. A strike rod 8 is vertically slidably arranged in the middle of the support frame 7. A connecting rod 9 is arranged at the top of the strike rod 8. A contact block 10 is arranged at the outward end of the connecting rod 9 corresponding to the extrusion block 6. The side of the contact block 10 facing the extrusion block 6 is an inwardly inclined downward slope or a circular arc surface.

[0023] In this embodiment, the swing arm 5 includes a crossbar 51, the center of which is keyed to the output end of the drive motor 4. Both ends of the crossbar 51 are connected to a stirring rod 52 facing downwards. A scraper 53 is provided at the bottom end of the stirring rod 52. A connecting rod 54 is symmetrically arranged on the crossbar 51 on the inner side of the stirring rod 52 with the drive motor 4 as the center. The extrusion block 6 is arranged on the connecting rod 54 and is located on the inward side.

[0024] In this embodiment, the two stirring rods 52 are of different lengths.

[0025] In this embodiment, a hollow sleeve 71 is vertically arranged in the middle of the support frame 2 7, and the impact rod 8 is slidably arranged inside the hollow sleeve 71. A groove 711 is provided on the inner wall of the hollow sleeve 71, and a slide bar 81 is provided on the outer wall of the impact rod 8. The slide bar 81 slides in the groove 711.

[0026] In this embodiment, a limit ring 82 is also provided on the strike rod 8.

[0027] In this embodiment, a sleeve 55 is provided at the bottom of the crossbar 51 corresponding to the position of the impact bar 8, and a spring 551 is sleeved on the sleeve 55. The lower end of the spring 551 is in contact with the upper end of the tray 85 provided at the top of the impact bar 8.

[0028] In this embodiment, the bottom end of the striking rod 8 is provided with a pointed part 83.

[0029] In this embodiment, the side wall of the impact rod 8 is provided with a spike rod 84 that extends vertically upwards.

[0030] The working principle of the above technical solution is as follows: During operation, the drive motor 4 drives the swing arm 5 to rotate. The stirring rods 52 and scrapers 53 at both ends of the crossbar 51 perform preliminary stirring of the material in the hopper to prevent material accumulation. At the same time, the extrusion block 6 rotates with the swing arm 5. When the extrusion block 6 contacts the inclined surface of the contact block 10, it pushes the connecting rod 9 and the impact rod 8 to slide upward, and the slide bar 81 moves within the sliding groove 711. When the extrusion block 6 disengages from the contact block 10, the spring 551 resets and pushes the tray 85, causing the impact rod 8 to move downward, forming a high-frequency reciprocating vibration. The tip 83 and the spike 84 of the impact rod 8 directly impact the material bridging structure near the discharge port 2 at the bottom of the hopper. Combined with the stirring of the stirring rod 52, this breaks the bridging and promotes the falling of the material.

[0031] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention employs a combination of vibration and stirring. The high-frequency vibration of the impact rod directly disrupts bridging, while the stirring rod prevents material accumulation, thus achieving a dual anti-bridging effect.

[0032] The spring design in this invention effectively increases the impact force when the impact bar moves downward, thereby improving the anti-bridging effect.

[0033] The spikes in this invention can break up and bridge materials in both the upward and downward directions when there is excessive accumulation. The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A vibratory anti-bridging device for a cable extruder hopper, characterized in that, include: The hopper body (1) has a discharge port (2) at the bottom. The hopper body (1) is equipped with an anti-bridging device. The anti-bridging device includes a support frame (3), which is horizontally positioned at the top of the hopper body (1). A drive motor (4) is vertically positioned on the support frame (3) and located at the center of the hopper body (1). A swing rod (5) is connected to the output end of the drive motor (4). An extrusion block (6) is positioned on the swing rod (5). A support frame (7) is also provided inside the hopper body (1). A strike rod (8) is vertically slidably positioned in the middle of the support frame (7). A connecting rod (9) is positioned at the top of the strike rod (8). A contact block (10) is positioned at the outward end of the connecting rod (9) corresponding to the extrusion block (6). The side of the contact block (10) facing the extrusion block (6) is an inwardly inclined downward slope or a circular arc surface.

2. The vibratory anti-bridging device for a cable extruder hopper according to claim 1, characterized in that: The swing arm (5) includes a crossbar (51), the center of which is connected to the output end of the drive motor (4). Both ends of the crossbar (51) are connected to a stirring rod (52) facing downwards. A scraper (53) is provided at the bottom end of the stirring rod (52). A connecting rod (54) is symmetrically arranged on the crossbar (51) inside the stirring rod (52) with the drive motor (4) as the center. The extrusion block (6) is arranged on the connecting rod (54) and is located on the inward side.

3. The cable extruder hopper vibration anti-bridging device according to claim 2, characterized in that: The two stirring rods (52) are of different lengths.

4. The vibratory anti-bridging device for a cable extruder hopper according to claim 2, characterized in that: A hollow sleeve (71) is vertically arranged in the middle of the support frame 2 (7). The impact rod (8) is slidably arranged inside the hollow sleeve (71). A groove (711) is provided on the inner wall of the hollow sleeve (71). A slide bar (81) is provided on the outer wall of the impact rod (8). The slide bar (81) slides in the groove (711).

5. The cable extruder hopper vibration anti-bridging device according to claim 4, characterized in that: The impact rod (8) is also provided with a limit ring (82).

6. The cable extruder hopper vibration anti-bridging device according to claim 5, characterized in that: A sleeve (55) is provided at the bottom of the crossbar (51) corresponding to the position of the impact bar (8). A spring (551) is sleeved on the sleeve (55). The lower end of the spring (551) is in contact with the upper end of the tray (85) provided at the top of the impact bar (8).

7. The vibratory anti-bridging device for a cable extruder hopper according to claim 1, characterized in that: The bottom end of the striker (8) is provided with a tip (83).

8. The vibratory anti-bridging device for a cable extruder hopper according to claim 7, characterized in that: The side wall of the impact bar (8) is vertically provided with spikes (84).

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