Spiral feeding machine

By designing the screw and moving ring structure of the locking unit, the problem of adjusting the discharge height of the screw feeder in a confined space was solved, achieving flexible adjustment and space saving.

CN224076360UActive Publication Date: 2026-04-03TAIZHOU SUNUO MACHINERY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing screw conveyors require a large base frame and occupy a lot of space when adjusting the tilt angle of the feeding barrel, making them unsuitable for confined spaces.

Method used

A locking unit was designed, including a screw, a moving ring, and a connecting rod. By rotating the screw, the moving ring is moved to realize the extension and retraction of the regulating tube, adjust the height of the discharge tube, and reduce the space occupied by the base frame.

Benefits of technology

It enables flexible adjustment of the discharge height in confined spaces, reduces the footprint of the base frame, is suitable for different discharge height requirements, and is more convenient to use.

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Abstract

The utility model discloses a spiral feeding machine, which belongs to the technical field of spiral feeding machines and comprises a feeding machine body, a feeding gun barrel arranged on one side of the feeding machine body and used for feeding, and a vertically downward discharging pipe arranged at the discharging end of the feeding gun barrel, and an adjusting pipe is arranged on the outer wall of the discharging pipe in a limiting and sliding manner. A supporting frame is fixedly arranged below the outer wall of the adjusting pipe, and a locking unit used for fixing the adjusting pipe to the discharging pipe is arranged on the inner side of the supporting frame. The locking unit comprises a screw rod which is transversely arranged on the inner side of the supporting frame in a penetrating mode and rotates, a guide rod which is transversely and fixedly arranged on the other side of the inner side of the supporting frame, a first moving ring and a second moving ring, and the first moving ring and the second moving ring are connected to the outer wall of the screw rod and the outer wall of the guide rod in a threaded guiding mode. And meanwhile, the discharging height of the discharging pipe can be adjusted to meet different discharging height requirements, and the device is more practical and convenient.
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Description

Technical Field

[0001] This utility model relates to the field of spiral feeder technology, specifically a spiral feeder. Background Technology

[0002] Screw conveyors, also known as screw feeders, are a common material handling equipment mainly used for feeding materials. They are characterized by high conveying efficiency, safe and reliable operation, simple structure, complete functions, good sealing, low noise, and attractive appearance.

[0003] Existing screw feeders are suitable for different material drop heights by changing the tilt angle of the feeding barrel. The tilt angle of the feeding barrel is adjusted using the adjustment device on the base frame. If the adjustment angle of the feeding barrel is large, there is a certain requirement for the length of the base frame. The higher the adjustment requirement, the larger the base frame size will be, and the larger the space occupied by the overall bolt feeder will be, making it unsuitable for some narrow spaces. Utility Model Content

[0004] The purpose of this utility model is to provide a screw feeder to at least partially solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a feeding machine body, a feeding barrel disposed on one side of the feeding machine body for feeding, and a vertically downward discharge pipe disposed on the discharge end of the feeding barrel. An adjusting pipe is slidably disposed on the outer wall of the discharge pipe, and a support frame is fixedly disposed below the outer wall of the adjusting pipe. A locking unit for fixing the adjusting pipe on the discharge pipe is disposed on the inner side of the support frame.

[0006] The locking unit includes a screw rod that rotates horizontally through the inner side of the support frame, a guide rod that is horizontally fixed on the other side of the inner side of the support frame, a first moving ring and a second moving ring that are threadedly connected to the outer walls of the screw rod and the guide rod, two connecting rods that are vertically fixed to the top of the first moving ring and the second moving ring, and a fixing block that is fixed on the inner surface of the connecting rod and has one end inserted into the outer wall of the discharge pipe through the adjusting tube.

[0007] Preferably, the top of the support frame is provided with two fixing rods that are fixedly connected to the outer wall of the adjusting tube.

[0008] Preferably, guide sleeves are fixedly provided on one end edge of the first moving ring and the second moving ring, and the two guide sleeves are slidably connected to the outer wall of the guide rod. Threaded sleeves are fixedly provided on the other end edge of the first moving ring and the second moving ring, and the two threaded sleeves are slidably connected to the outer wall of the screw rod.

[0009] Preferably, the outer wall of the discharge pipe is vertically provided with a guide groove, and the inner wall of the adjusting pipe is fixedly provided with a guide block inserted into the guide groove.

[0010] Preferably, the outer wall of the regulating pipe has an opening opposite to the fixing block, and the outer wall of the discharge pipe has multiple vertically arranged regulating holes, with one end of the fixing block inserted into the regulating hole through the opening.

[0011] Preferably, the two connecting rods are respectively located at the middle part of the top of the first moving ring and the second moving ring, and a rotating sleeve for supporting the limited rotation of one end of the screw is provided on the inner side of the support frame.

[0012] Preferably, when the first moving ring and the second moving ring are combined, there is a gap between them and the support frame, and the gap is greater than the distance from which the fixed block disengages from the adjustment hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. When using this utility model, the adjusting tube that slides on the outer wall of the discharge pipe can extend or retract the overall length of the discharge pipe. Rotating the screw clockwise causes the first and second moving rings to move outwards respectively, causing the fixings on the two connecting rods to disengage from the inside of the discharge pipe. This allows the sliding and telescopic adjusting tube to be positioned at ground level. The base frame of this feeding machine occupies little space, and the height of the discharge pipe can be adjusted to suit different discharge height requirements, making it more practical and convenient.

[0015] 2. The locking unit is positioned below the adjusting tube in this utility model, which facilitates the operation of the locking unit by the staff. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0018] Figure 2 This is an example. Figure 1 A schematic diagram of the enlarged structure A in the diagram;

[0019] Figure 3 This is a three-dimensional structural diagram of the locking unit in this embodiment;

[0020] Figure 4 This is a top view cross-sectional structural diagram of the locking unit in this embodiment;

[0021] Figure 5 This is a schematic diagram of the inclined cross-sectional structure of the regulating pipe in this embodiment;

[0022] Figure 6 This is an example. Figure 4 A magnified schematic diagram of B in the diagram.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Feeding machine body; 2. Feeding barrel; 3. Discharge pipe; 31. Guide groove; 32. Adjustment hole; 4. Adjustment pipe; 41. Guide block; 5. Support frame; 51. Fixing rod; 6. Locking unit; 61. Screw; 62. First moving ring; 63. Second moving ring; 64. Connecting rod; 65. Fixing block; 66. Guide rod; 631. Guide sleeve; 632. Threaded sleeve. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 This utility model provides a technical solution: a spiral feeder, including a feeder body 1, a feeder barrel 2 disposed on one side of the feeder body 1 for feeding, and a vertically downward discharge pipe 3 disposed on the discharge end of the feeder barrel 2. An adjusting pipe 4 is slidably disposed on the outer wall of the discharge pipe 3. A support frame 5 is fixedly disposed below the outer wall of the adjusting pipe 4. A locking unit 6 for fixing the adjusting pipe 4 to the discharge pipe 3 is disposed on the inner side of the support frame 5.

[0027] The locking unit 6 includes a screw 61 that is horizontally inserted through the inner side of the support frame 5 and rotates, a guide rod 66 that is horizontally fixed on the other side of the inner side of the support frame 5, a first moving ring 62 and a second moving ring 63 that are threadedly connected to the outer walls of the screw 61 and the guide rod 66, two connecting rods 64 that are vertically fixed to the top of the first moving ring 62 and the second moving ring 63, and a fixing block 65 that is fixed on the inner surface of the connecting rod 64 and has one end inserted into the outer wall of the discharge pipe 3 through the adjusting tube 4;

[0028] This feeding machine can extend and retract the overall length of the discharge pipe 3 by means of an adjusting pipe 4 that slides on the outer wall of the discharge pipe 3. By rotating the screw 61, the first moving ring 62 and the second moving ring 63 can move in opposite directions. When it is necessary to change the discharge height of the adjusting pipe 4, rotating the screw 61 clockwise will cause the first moving ring 62 and the second moving ring 63 to move outward respectively, causing the fixing blocks 65 on the two connecting rods 64 to disengage from the discharge pipe 3. This allows the adjusting pipe 4 to slide and retract to the ground height. The feeding machine has a small footprint and can adjust the discharge height of the discharge pipe 3 to meet different discharge height requirements, making it more practical and convenient.

[0029] More preferably, the top of the support frame 5 is provided with two fixing rods 51 that are fixedly connected to the outer wall of the adjusting tube 4;

[0030] By using two fixed rods 51 that are inclined at the top of the support frame 5, and with the upper ends of the fixed rods 51 fixed to the outer wall of the adjusting pipe 4, the support frame 5 is fixedly suspended outside the adjusting pipe 4.

[0031] More preferably, guide sleeves 631 are fixedly provided on one end edge of the first moving ring 62 and the second moving ring 63, and the two guide sleeves 631 are opposite to each other and slidably connected to the outer wall of the guide rod 66. Threaded sleeves 632 are fixedly provided on the other end edge of the first moving ring 62 and the second moving ring 63, and the two threaded sleeves 632 are opposite to each other and threadedly provided on the outer wall of the screw 61.

[0032] Guide sleeves 631, provided at one end of the first moving ring 62 and the second moving ring 63, are respectively fitted onto the outer wall of the guide rod 66 and move to limit the first moving ring 62 and the second moving ring 63. Threaded sleeves 632, provided at the other end of the first moving ring 62 and the second moving ring 63, are threaded onto the outer wall of the screw rod 61, and the internal threads of the two threaded sleeves 632 are opposite threads, so that the two threaded sleeves 632 move on the outer wall of the screw rod 61 with opposite threads.

[0033] In a further preferred embodiment, a guide groove 31 is vertically provided on the outer wall of the discharge pipe 3, and a guide block 41 is fixedly provided on the inner wall of the adjusting pipe 4 and inserted into the guide groove 31;

[0034] By means of the guide groove 31 provided on the outer wall of the discharge pipe 3, the regulating pipe 4 is inserted into the guide groove 31 by the guide block 41 provided on the inner wall, which constrains the sliding of the regulating pipe 4 and prevents the regulating pipe 4 from falling off the discharge pipe 3.

[0035] More preferably, the outer wall of the regulating pipe 4 has an opening opposite to the fixing block 65, and the outer wall of the discharge pipe 3 has a plurality of regulating holes 32 vertically opened, and one end of the fixing block 65 is inserted into the inside of the regulating hole 32 through the opening;

[0036] Multiple adjustment holes 32 are provided on the outer wall of the adjustment tube 4 for adjusting the fixed adjustment tube 4, so that the adjustment tube 4 can be more easily adjusted to the required height and then firmly fixed on the discharge tube 3.

[0037] More preferably, the two connecting rods 64 are respectively located at the middle part of the top of the first moving ring 62 and the second moving ring 63, and the inner side of the support frame 5 is provided with a rotating sleeve for supporting the limited rotation of one end of the screw 61;

[0038] Two connecting rods 64 are respectively set at the top middle part of the first moving ring 62 and the second moving ring 63, so that the two connecting rods 64 are symmetrical to each other, and the moving rods 64 are fixed in a better way.

[0039] More preferably, when the first moving ring 62 and the second moving ring 63 are combined, there is a gap between them and the support frame 5, and the gap is greater than the distance from which the fixed block 65 disengages from the adjustment hole 32;

[0040] The distance between the first moving ring 62 and the second moving ring 63 and the inner side of the support frame 5 is greater than the distance between the fixed block 65 and the adjustment hole 32, so it will not affect the detachment of the fixed block 65 or the movement of the adjustment tube 4.

[0041] A specific application of this embodiment is as follows: When it is necessary to adjust the discharge height of the discharge pipe 3, rotating the screw 61 clockwise causes the first moving ring 62 and the second moving ring 63 to move outward respectively, driving the fixing blocks 65 on the two connecting rods 64 to disengage from the discharge pipe 3. The sliding telescopic adjustment pipe 4 can then be positioned at the ground height. When the adjustment pipe 4 is moved to a suitable height through the multiple adjustment holes 32 provided on the outer wall of the discharge pipe 3, rotating the screw 61 counterclockwise causes the first moving ring 62 and the second moving ring 63 to drive the two connecting rods 64 to move closer together. This allows the two fixing blocks 65 to be inserted into the adjustment holes 32 through the adjustment pipe 4, thus fixing and constraining the adjusted height of the adjustment pipe 4 to the outer wall of the discharge pipe 3.

[0042] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spiral feeding machine, comprising a feeding machine body (1), a feeding barrel (2) arranged on one side of the feeding machine body (1) for feeding, and a vertically downward discharge pipe (3) arranged on the discharge end of the feeding barrel (2), characterized in that: The outer wall of the discharge pipe (3) is limited to slide and is provided with an adjusting pipe (4), the lower outer wall of the adjusting pipe (4) is fixedly provided with a support frame (5), and the inner side of the support frame (5) is provided with a lock unit (6) for fixing the adjusting pipe (4) on the discharge pipe (3). The lock unit (6) comprises a screw rod (61) which is transversely arranged and rotates in the inner side of the support frame (5), a guide rod (66) which is transversely fixedly arranged on the other side of the inner side of the support frame (5), a first moving ring (62) and a second moving ring (63) which are threadedly and guideedly connected to the outer walls of the screw rod (61) and the guide rod (66), two connecting rods (64) which are vertically and fixedly connected to the top of the first moving ring (62) and the second moving ring (63), and a fixed block (65) which is fixedly arranged on the inner surface of the connecting rod (64) and is inserted into the outer wall of the discharge pipe (3) through one end of the adjusting pipe (4).

2. A screw feeder as claimed in claim 1, characterized in that: The top of the support frame (5) is obliquely provided with two fixed rods (51) which are fixedly connected to the outer wall of the adjusting pipe (4).

3. A screw feeder as claimed in claim 1, characterized in that: One end edges of the first moving ring (62) and the second moving ring (63) are respectively fixedly provided with guide sleeves (631), the two guide sleeves (631) are opposite to each other and are slidably connected to the outer wall of the guide rod (66), and the other end edges of the first moving ring (62) and the second moving ring (63) are respectively fixedly provided with threaded sleeves (632), and the two threaded sleeves (632) are opposite to each other and are threadedly connected to the outer wall of the screw rod (61).

4. A screw feeder as claimed in claim 1, characterized in that: The outer wall of the discharge pipe (3) is vertically provided with a guide groove (31), and the inner wall of the adjusting pipe (4) is fixedly provided with a guide block (41) which is inserted into the guide groove (31).

5. A screw feeder as claimed in claim 4, characterized in that: The outer wall of the adjusting pipe (4) is provided with a through hole which is opposite to the fixed block (65), the outer wall of the discharge pipe (3) is vertically provided with a plurality of adjusting holes (32), and one end of the fixed block (65) is inserted into the adjusting hole (32) through the through hole.

6. A screw feeder as claimed in claim 1, characterized in that: The two connecting rods (64) are respectively arranged at the middle parts of the top of the first moving ring (62) and the second moving ring (63), and the inner side of the support frame (5) is provided with a rotating sleeve for supporting the limited rotation of one end of the screw rod (61).

7. A screw feeder as claimed in claim 1, characterized in that: When the first moving ring (62) and the second moving ring (63) are combined, a space is left between the first moving ring (62) and the second moving ring (63) and the support frame (5), and the distance between the first moving ring (62) and the second moving ring (63) is greater than the distance of the fixed block (65) from the adjusting hole (32).