Extruder discharging device capable of preventing powder accumulation

Abstract

The utility model discloses an extruder blanking device for preventing powder accumulation, which relates to the technical field of extruder feeding and comprises a hopper body, a fixed plate, a limiting sleeve, a clamping block, a movable plate, a first elastic piece and a second elastic piece, the limiting sleeve is arranged at the top of the fixed plate, the clamping block is slidably arranged in the limiting sleeve, and the movable plate is arranged in the limiting sleeve. A sliding block in sliding fit with the clamping block is arranged at the bottom of the movable plate, the first elastic piece is arranged between the clamping block and the limiting sleeve, and the second elastic piece is arranged between the sliding block and the limiting sleeve. When the movable plate is vibrated by the outside of the hopper body, the sliding blocks slide in the limiting sleeves to extrude the clamping blocks. The first elastic piece and the second elastic piece absorb and buffer vibration or pressure in the horizontal direction and the vertical direction respectively. The first elastic piece and the second elastic piece store energy through deformation, when vibration or pressure disappears, the sliding block and the clamping block are pushed to return to the initial position through elastic restoring force of the first elastic piece and the second elastic piece, and resetting of the movable plate is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruder feeding, in particular to an extruder feeding device capable of preventing powder accumulation. Background Art

[0002] Powder accumulation is a common problem during extruder feeding. Traditional feeding methods, such as gravity feeding, while simple, can lead to uneven material delivery. This can lead to further compaction and "bridging" blockage, especially for filler-rich formulations. This not only affects product quality but can also reduce production efficiency.

[0003] In the existing technical solutions, the Chinese patent with the authorization announcement number CN219236281U discloses an extruder unloading device for preventing powder accumulation, including a hopper body, wherein the hopper body is an elliptical structure, one end of the long axis direction of the elliptical structure is vertically arranged in the longitudinal direction, and the other end is inclined in the longitudinal direction, and a vibrating hammer is arranged on the inclined outer wall of the hopper body; the hopper body is embedded in the through hole in the middle of the weighing and metering device, and the above technical solution adopts a structure with one side at a right angle, one side with an inclination and a vibrating hammer installed on the inclined side to reduce the contact area between the powder and the hopper wall, reduce the friction between the materials, and achieve the effect of accurate powder unloading and no accumulation.

[0004] The disadvantage of the above-mentioned prior art solution is that when the vibratory hammer is in operation, the vibration generated is transmitted not only to the hopper body, but also through the hopper body to the weighing and metering device. The continuous vibration will cause premature aging and damage to the weighing and metering device, thereby increasing the maintenance and operating costs of the equipment. Utility Model Content

[0005] The purpose of the utility model is to provide an extruder unloading device which can prevent powder accumulation, so as to solve the technical problem in the prior art that the vibration of the hopper may affect the weighing and metering device.

[0006] The technical problem to be solved by the present utility model can be achieved through the following technical solutions: An extruder unloading device for preventing powder accumulation, comprising a hopper body, an extruder, a vibrating mechanism, a weighing mechanism and a shock-absorbing mechanism, the discharge port of the hopper body being connected to the feed port of the extruder, the vibrating mechanism being used to vibrate the discharge port of the hopper body, the vibrating mechanism being arranged on the outside of the hopper body, the weighing mechanism comprising a support frame and a weight sensor, the weight sensor being fixedly mounted on the top of the support frame, the shock-absorbing mechanism comprising a fixed plate, a limiting sleeve, a clamping block, a movable plate, a first elastic member and a second elastic member, the fixed plate being fixedly mounted on the detection end of the weight sensor, the limiting sleeve being fixedly arranged on the top of the fixed plate, the clamping block being slidably arranged in the limiting sleeve, the bottom of the movable plate being fixedly provided with a slider which slides with the clamping block, the first elastic member being fixedly arranged between the clamping block and the limiting sleeve, and the second elastic member being fixedly arranged between the slider and the limiting sleeve.

[0007] As a further solution of the present invention: a horizontal sliding hole is provided on the inner wall of the limiting sleeve, and a sliding rod that slides in cooperation with the sliding groove is provided on one side of the clamping block.

[0008] As a further solution of the present invention: the first elastic member is a shock-absorbing spring, the first elastic member is wound around the outside of the slide rod, one end of the first elastic member is connected to the clamping block, and the other end of the first elastic member is connected to the limiting sleeve.

[0009] As a further solution of the present invention: a clamping groove matching the shape of the slider is provided on one side of the clamping block.

[0010] As a further solution of the present invention: the shock absorbing mechanism further includes balls, the side wall of the clamping groove is provided with a plurality of grooves arranged in a ring shape, and a plurality of balls are provided, and the balls are rolled in the corresponding grooves.

[0011] As a further solution of the present invention: the second elastic member is a shock-absorbing spring, one end of the second elastic member is connected to the slider, and the other end of the second elastic member is connected to the limiting sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. When the movable plate is subjected to external vibrations from the hopper body, causing horizontal movement, the slider squeezes the clamping block, causing the first elastic member between the clamping block and the limiting sleeve to deform. This absorbs and cushions the vibrations, reducing the impact of these forces on the weight sensor and protecting the weighing and metering device from damage. When the external vibrations from the hopper body cease, the clamping block, under the action of the first elastic member, pushes the slider back to its initial position, thereby resetting the movable plate.

[0014] 2. When the movable plate is subjected to the weight of the hopper body or external vibration, causing vertical movement, the slider squeezes the second elastic member, causing it to deform, thereby absorbing and buffering the pressure or vibration, reducing the impact of these forces on the weight sensor and thus protecting the weight sensor. When the weight of the hopper body decreases or the external vibration stops, the slider, under the action of the second elastic member, pushes the slider back to its original position, thereby resetting the movable plate.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of an extruder discharge device for preventing powder accumulation.

[0018] Figure 2 It is a three-dimensional structural diagram of the weighing mechanism in the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the limiting sleeve in the utility model.

[0020] Figure 4 It is a partial structural sectional view of the shock absorbing mechanism in the utility model.

[0021] Reference numerals include:

[0022] 1. Hopper body; 2. Extruder; 3. Vibration mechanism; 4. Shock-absorbing mechanism; 41. Fixed plate; 42. Limit sleeve; 43. Clamping block; 44. Movable plate; 45. First elastic member; 46. Second elastic member; 47. Slider; 48. Slide hole; 49. Slide rod; 410. Clamping groove; 411. Ball; 5. Weighing mechanism; 51. Support frame; 52. Weight sensor. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figures 1 to 4As shown, an extruder unloading device for preventing powder accumulation includes a hopper body 1, an extruder 2, a vibrating mechanism 3, a shock absorbing mechanism 4, and a weighing mechanism 5. The discharge port of the hopper body 1 is connected to the feed port of the extruder 2 via a hose. The hose has a certain degree of elasticity and flexibility and can adapt to certain displacements and vibrations, thereby preventing the connection between the hopper body 1 and the extruder 2 from breaking or leaking due to vibration. The vibrating mechanism 3 is a vibrating hammer, which is used to vibrate the discharge port of the hopper body 1. The vibrating hammer is fixedly mounted on the outside of the hopper body 1. When powder accumulates at the discharge port, the vibrating hammer will start, generating vibration force to loosen the accumulated powder, so that it can flow smoothly into the hose and then into the extruder 2. The weighing mechanism 5 includes a support frame 51 and a weight sensor 52. The weight sensor 52 is electrically connected to the vibratory hammer. The weight sensor 52 is fixedly mounted on the top of the support frame 51. The hopper body 1 is mounted on the weight sensor 52 via the shock-absorbing mechanism 4. This enables the weighing mechanism 5 to monitor the weight of the powder in the hopper body 1 in real time to detect whether the powder in the hopper body 1 is accumulated or blocked. When the weighing mechanism 5 detects that the weight of the hopper body 1 exceeds a certain range, that is, the powder is accumulated in the hopper body 1, the vibratory hammer will start, generating a vibration force to loosen the accumulated powder, so that it can flow smoothly into the hose and then into the extruder 2. Until the weight of the hopper body 1 returns to a certain range, that is, the powder is no longer accumulated in the hopper body 1, the vibratory hammer will stop vibrating.

[0025] The shock absorbing mechanism 4 includes a fixed plate 41, a limiting sleeve 42, a clamping block 43, a movable plate 44, a first elastic member 45 and a second elastic member 46. The fixed plate 41 is fixedly installed on the detection end of the weight sensor 52, the limiting sleeve 42 is fixedly set on the top of the fixed plate 41, the clamping block 43 is slidably set in the limiting sleeve 42, the hopper body 1 is fixedly connected to the movable plate 44, and the bottom of the movable plate 44 is fixedly provided with a slider 47 that slides with the clamping block 43. The first elastic member 45 is fixedly set between the clamping block 43 and the limiting sleeve 42, and the second elastic member 46 is fixedly set between the slider 47 and the limiting sleeve 42.

[0026] When the movable plate 44 is subjected to external vibration of the hopper body 1 and moves horizontally, the slider 47 squeezes the clamping block 43, causing the first elastic member 45 between the clamping block 43 and the limiting sleeve 42 to deform, thereby absorbing and buffering the vibration and reducing the impact of these forces on the weight sensor 52.

[0027] When the external vibration of the hopper body 1 stops, the clamping block 43 pushes the slider 47 back to the initial position under the action of the first elastic member 45 , thereby achieving the reset of the movable plate 44 .

[0028] When the movable plate 44 is subjected to the weight pressure of the hopper body 1 or external vibration and moves vertically, the slider 47 squeezes the second elastic member 46, causing the second elastic member 46 to deform, thereby absorbing and buffering the pressure or vibration, reducing the impact of these forces on the weight sensor 52, and thus protecting the weight sensor 52.

[0029] When the weight pressure of the hopper body 1 decreases or the external vibration stops, the slider 47 is pushed back to the initial position by the second elastic member 46 , thereby resetting the movable plate 44 .

[0030] refer to Figure 4 As shown, in some specific embodiments, to control the sliding of the clamping block 43 within the limiting sleeve 42, a horizontal sliding hole 48 is formed on the inner wall of the limiting sleeve 42. A sliding rod 49 is provided on one side of the clamping block 43 to slide in the sliding groove. When the clamping block 43 is subjected to a horizontal force from the movable plate 44, the sliding rod 49 slides within the sliding hole 48, thereby driving the clamping block 43 to move horizontally, ensuring stable and smooth sliding of the clamping block 43.

[0031] refer to Figure 4 As shown, in some specific embodiments, in order to ensure that the shock absorbing mechanism 4 can effectively absorb and buffer vibrations in the horizontal direction, the first elastic member 45 is a shock absorbing spring. The first elastic member 45 is wound around the outside of the slide rod 49. One end of the first elastic member 45 is connected to the clamping block 43, and the other end of the first elastic member 45 is connected to the limiting sleeve 42. When the movable plate 44 is subjected to external vibrations of the hopper body 1, the slide rod 49 will slide in the slide hole 48, driving the clamping block 43 to move together. At this time, the shock absorbing spring wound around the outside of the slide rod 49 will be squeezed or stretched, thereby absorbing and buffering the vibration energy. When the vibration stops, the shock absorbing spring will use its elastic restoring force to push the clamping block 43 and the slide rod 49 back to the initial position, thereby resetting the movable plate 44.

[0032] refer to Figure 3 and Figure 4 As shown, in some specific embodiments, to enhance the mating stability between the clamping block 43 and the slider 47, a clamping groove 410 is provided on one side of the clamping block 43 that matches the shape of the slider 47. The clamping groove 410 cooperates with the slider 47 to ensure that the clamping block 43 always fits the slider 47 when the slider 47 moves, thereby enhancing the mating stability between the clamping block 43 and the slider 47.

[0033] refer to Figure 4As shown, in some specific embodiments, to reduce friction between the clamping block 43 and the slider 47, the shock-absorbing mechanism 4 further includes balls 411. The sidewalls of the clamping groove 410 are provided with a plurality of annular grooves, and multiple balls 411 are provided, rolling within the corresponding grooves. When the slider 47 slides within the clamping groove 410, the balls 411 roll with it. Because the rolling friction of the balls 411 is much smaller than the sliding friction, the friction between the clamping block 43 and the slider 47 is significantly reduced, making the sliding motion smoother and enabling better handling of various vibration conditions.

[0034] refer to Figure 4 As shown, in some specific embodiments, in order to ensure that the shock absorbing mechanism 4 can effectively absorb and buffer vibrations in the vertical direction, the second elastic member 46 is a shock absorbing spring, one end of the second elastic member 46 is connected to the slider 47, and the other end of the second elastic member 46 is connected to the limiting sleeve 42. When the movable plate 44 is subjected to downward pressure from the weight of the hopper body 1 or external vibrations, the slider 47 will move downward and squeeze the second elastic member 46 connected thereto. The second elastic member 46 will deform when squeezed and store energy. When the weight pressure of the hopper body 1 decreases or the external vibration stops, the second elastic member 46 will use its elastic restoring force to push the slider 47 upward and return to its initial position. In this way, the second elastic member 46 can effectively absorb and buffer the vibration energy in the vertical direction and protect the weight sensor 52 from damage.

[0035] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of the embodiments of this solution will now be described in conjunction with specific application scenarios:

[0036] The powder in the hopper body 1 flows into the feed port of the extruder 2 through the hose under the action of gravity. The hose ensures that the connection between the hopper body 1 and the extruder 2 remains stable even in a vibrating environment, avoiding the risk of connection breakage or leakage.

[0037] The hopper body 1 is mounted on the weight sensor 52 via the shock absorbing mechanism 4. As the powder is continuously supplied and consumed, the weight sensor 52 monitors the weight of the powder in the hopper body 1 in real time to detect whether the powder in the hopper body 1 is accumulated or blocked.

[0038] When the weighing mechanism 5 detects that the weight of the hopper body 1 exceeds a certain range, that is, the powder is accumulated in the hopper body 1, the vibratory hammer will start, generating vibration force to loosen the accumulated powder, so that it can flow smoothly into the hose and then into the extruder 2, until the weight of the hopper body 1 returns to a certain range, that is, the powder is not accumulated in the hopper body 1, and the vibratory hammer stops vibrating.

[0039] When the movable plate 44 is subjected to external vibration or weight pressure from the hopper body 1, the slider 47 slides within the limiting sleeve 42, squeezing the clamping block 43. The first elastic member 45 and the second elastic member 46 between the clamping block 43 and the limiting sleeve 42 absorb and buffer vibration or pressure in the horizontal and vertical directions, respectively.

[0040] The first elastic member 45 and the second elastic member 46 store energy by deformation. When the vibration or pressure disappears, their elastic restoring force pushes the slider 47 and the clamping block 43 back to their initial positions, thereby resetting the movable plate 44.

[0041] When the slider 47 slides in the clamping groove 410, the ball 411 rolls with it. Since the rolling friction of the ball 411 is much smaller than the sliding friction, the friction between the clamping block 43 and the slider 47 can be significantly reduced, making the sliding smoother and making it better able to cope with various vibration conditions.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An extruder feeding device for preventing powder accumulation, comprising a hopper body (1) and an extruder (2), wherein the discharge port of the hopper body (1) is connected to the feed port of the extruder (2), characterized in that: Also includes: a vibration mechanism (3) for vibrating the discharge port of the hopper body (1), wherein the vibration mechanism (3) is arranged outside the hopper body (1); A weighing mechanism (5), the weighing mechanism (5) comprising a support frame (51) and a weight sensor (52), the weight sensor (52) being fixedly mounted on the top of the support frame (51), and the weight sensor (52) being electrically connected to the vibration mechanism (3); A shock absorbing mechanism (4) is provided, wherein the shock absorbing mechanism (4) comprises a fixed plate (41), a limiting sleeve (42), a clamping block (43), a movable plate (44), a first elastic member (45) and a second elastic member (46); the fixed plate (41) is fixedly mounted on the detection end of the weight sensor (52); the limiting sleeve (42) is fixedly arranged on the top of the fixed plate (41); the clamping block (43) is slidably arranged in the limiting sleeve (42); a slider (47) that is slidably matched with the clamping block (43) is fixedly arranged on the bottom of the movable plate (44); the first elastic member (45) is fixedly arranged between the clamping block (43) and the limiting sleeve (42); and the second elastic member (46) is fixedly arranged between the slider (47) and the limiting sleeve (42).

2. The extruder blanking device for preventing powder accumulation according to claim 1, characterized in that: A horizontal sliding hole (48) is provided on the inner wall of the limiting sleeve (42), and a sliding rod (49) that is slidably matched with the sliding groove is provided on one side of the clamping block (43).

3. The extruder blanking device for preventing powder accumulation according to claim 2, characterized in that: The first elastic member (45) is a shock-absorbing spring. The first elastic member (45) is wound around the outside of the slide rod (49). One end of the first elastic member (45) is connected to the clamping block (43), and the other end of the first elastic member (45) is connected to the limiting sleeve (42).

4. The extruder blanking device for preventing powder accumulation according to claim 1, characterized in that: One side of the clamping block (43) is provided with a clamping groove (410) that matches the shape of the slider (47).

5. The extruder blanking device for preventing powder accumulation according to claim 4, characterized in that: The shock absorbing mechanism (4) further comprises a ball (411), and the side wall of the clamping groove (410) is provided with a plurality of grooves arranged in an annular shape. The ball (411) is provided in plurality and is rolled in the corresponding grooves.

6. The extruder blanking device for preventing powder accumulation according to claim 1, characterized in that: The second elastic member (46) is a shock-absorbing spring. One end of the second elastic member (46) is connected to the slider (47), and the other end of the second elastic member (46) is connected to the limiting sleeve (42).

Images