Automatic feeding device for ultra-high molecular weight polyethylene pipe production

Abstract

The utility model provides an automatic feeding device for ultra-high molecular polyethylene pipe production, which relates to the technical field of polyethylene pipe production and comprises a storage barrel, a discharge control mechanism is arranged below the storage barrel and comprises a discharge pipe, and the upper end of the discharge pipe is fixedly communicated with the lower end of the storage barrel. A servo motor of the discharging control mechanism drives a gear, an outer gear ring and a driving ring to rotate, then a triangular plate is driven to move, the size of a discharging port is accurately adjusted, the feeding amount can be flexibly and accurately controlled according to the requirements of polyethylene pipes of different specifications for polyethylene particles, the production precision and the product quality stability are improved, and the production efficiency is improved. And in addition, in the movable lifting mechanism, self-locking universal wheels facilitate flexible movement of the device in a workshop, a servo electric cylinder can achieve lifting of a material storage barrel, accurate positioning and butt joint can be conveniently conducted according to the position and height requirements of production equipment, and the applicability and convenience of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene pipe production technology, and in particular to an automatic feeding device for the production of ultra-high molecular weight polyethylene pipes. Background Technology

[0002] Currently, the plastic pipe market in China's municipal pipe industry is developing steadily, with PE pipes, PP-R pipes, and UPVC pipes all holding a place. Among them, the strong development momentum of PE pipes is the most remarkable. In the production of polyethylene pipes, polyethylene granules need to be melted and extruded through an extruder to process and shape the polyethylene pipes. Moreover, the demand for polyethylene granules varies depending on the size of the polyethylene pipe during the production process.

[0003] For example, an automatic feeding device for the production of ultra-high molecular weight polyethylene pipes disclosed in Chinese patent literature (publication number: CN220010832U) uses two telescopic components to drive the symmetrical movable plates one and two to move towards or away from each other, thereby driving the inclined plates one and two to move towards or away from each other, and thus driving the horizontal plates one and two to move towards or away from each other. This allows for adjustment of the size of the discharge trough formed between the adjusting channel one and the adjusting channel two, facilitating the automatic adjustment and control of the feeding of polyethylene granules during the production process according to the different sizes of polyethylene pipes. Through the lifting adjustment of the electric lifting rod and the action of the universal wheels, the device can be easily adjusted and moved according to the needs of use, bringing convenience to the production and processing of polyethylene pipes.

[0004] However, when storing materials in the placement frame, the two telescopic components drive the movable plates one and two to move in opposite directions to close the adjustment channels one and two. This significantly reduces the effective storage space inside the placement frame, resulting in a reduction in the storage space inside the frame and a large amount of wasted space on both sides. This directly leads to the inability of the polyethylene granule reserve in the placement frame to meet the needs of long-term production, resulting in frequent shutdowns for material replenishment and affecting the continuity of production. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the low utilization rate of the internal storage space of the placement frame, which leads to the need for frequent machine shutdowns for material replenishment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic feeding device for the production of ultra-high molecular weight polyethylene pipes includes a storage cylinder, a discharge control mechanism is provided below the storage cylinder, and the discharge control mechanism includes a discharge pipe, the upper end of which is fixedly connected to the lower end of the storage cylinder.

[0008] The lower end of the discharge pipe is fixedly connected to an annular mounting block. The inner wall of the annular mounting block is connected to the inner wall of the discharge pipe. The lower end of the annular mounting block is provided with a hexagonal groove. The inner wall of the hexagonal groove is slidably connected to sliders arranged in a circular array. The lower end of the slider is fixedly connected to a triangular plate. The upper end of the triangular plate is in contact with the lower end of the annular mounting block. The two inclined sides of the multiple triangular plates are in contact with each other.

[0009] The storage cylinder is equipped with a movable lifting mechanism on its exterior.

[0010] Preferably, a drive ring is rotatably connected to the outside of the annular mounting block via a bearing, and an annular drive plate is fixedly sleeved on the inner wall of the drive ring, with the upper end of the annular drive plate contacting the lower end of the triangular plate.

[0011] Preferably, the lower end of the annular drive plate is provided with drive grooves arranged in an annular array, and a drive rod is slidably connected to the inner wall of the drive groove. The upper end of the drive rod is fixedly connected to the lower end of the triangular plate.

[0012] Preferably, an external gear ring is fixedly sleeved on the outside of the drive ring, a support block is fixedly sleeved on the outside of the discharge pipe, a servo motor is fixedly installed on the upper end of the support block, and a rotating shaft is fixedly installed on the output shaft of the servo motor through a coupling.

[0013] Preferably, one end of the rotating shaft passes through the support block and is fixedly fitted with a gear, the tooth surface of the gear meshing with the tooth surface of the outer gear ring.

[0014] Preferably, the movable lifting mechanism includes fixed blocks, two fixed blocks are symmetrically distributed and their opposing surfaces are fixedly connected to the outside of the storage cylinder, and symmetrically distributed guide rods are movably sleeved on the inner wall of the fixed blocks.

[0015] Preferably, a base plate is fixedly connected to the lower end of each of the two guide rods, a servo electric cylinder is fixedly installed on the upper end of the base plate, one end of the piston rod of the servo electric cylinder is fixedly connected to the lower end of the fixed block, and self-locking casters are fixedly installed on the lower end of the base plate in a symmetrical arrangement.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the servo motor of the discharge control mechanism drives the gear and external gear ring to rotate the drive ring, which in turn drives the triangular plate to move, precisely adjusting the size of the discharge port. This allows for flexible and precise control of the feeding amount according to the demand for polyethylene granules in the production of polyethylene pipes of different specifications, improving production accuracy and product quality stability. It also avoids insufficient material storage, which could affect the continuity of production. Furthermore, the self-locking casters in the moving and lifting mechanism facilitate flexible movement of the device within the workshop, while the servo electric cylinder can lift and lower the storage cylinder, enabling precise positioning and docking according to the location and height requirements of the production equipment, thus improving the applicability and convenience of the device. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of an automatic feeding device for the production of ultra-high molecular weight polyethylene pipes provided by this utility model;

[0019] Figure 2 A three-dimensional view of the storage cylinder structure of an automatic feeding device for the production of ultra-high molecular weight polyethylene pipes provided by this utility model;

[0020] Figure 3 A three-dimensional view of the support block structure of an automatic feeding device for the production of ultra-high molecular weight polyethylene pipes provided by this utility model;

[0021] Figure 4 A three-dimensional view of the annular drive plate structure of an automatic feeding device for the production of ultra-high molecular weight polyethylene pipes provided by this utility model;

[0022] Figure 5 An exploded view of the triangular plate structure of an automatic feeding device for the production of ultra-high molecular weight polyethylene pipes provided by this utility model.

[0023] Legend: 1. Storage cylinder; 2. Discharge pipe; 21. Annular mounting block; 22. Hexagonal slide groove; 23. Slider; 24. Triangular plate; 25. Drive ring; 26. Annular drive plate; 27. Drive groove; 28. Drive rod; 29. ​​External gear ring; 210. Support block; 211. Servo motor; 212. Rotating shaft; 213. Gear; 3. Fixing block; 31. Guide rod; 32. Base plate; 33. Servo electric cylinder; 34. Self-locking caster wheel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to 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.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figure 1-5 As shown, this utility model provides a technical solution: an automatic feeding device for the production of ultra-high molecular weight polyethylene pipes, including a storage cylinder 1, which is the core component and is used to store polyethylene granules required for the production of ultra-high molecular weight polyethylene pipes. The storage cylinder 1 is connected to a discharge control mechanism at the bottom. The upper end of the discharge pipe 2 is fixedly connected to the lower end of the storage cylinder 1 by welding or flange connection, etc., to form a material conveying channel.

[0030] The lower end of the discharge pipe 2 is fixedly connected to the annular mounting block 21. The connection between the two ensures the stability and sealing of the structure. The inner wall of the annular mounting block 21 is connected to the inner wall of the discharge pipe 2 to ensure that the material passes through smoothly. A hexagonal groove 22 is opened at the lower end of the annular mounting block 21. The slider 23 is slidably connected to the inner wall of the hexagonal groove 22 by a clearance fit. This connection method not only ensures that the slider 23 can slide smoothly, but also provides a certain degree of guidance.

[0031] The lower end of the slider 23 is fixed to the triangular plate 24 by welding or bolt connection, the upper end of the triangular plate 24 is in contact with the lower end of the annular mounting block 21, and the two sides of the multiple triangular plates 24 are in contact with each other, forming an adjustable discharge port structure.

[0032] The annular mounting block 21 is rotatably connected to the drive ring 25 via a bearing. This connection method reduces friction and makes the drive ring 25 rotate more smoothly. The inner wall of the drive ring 25 is fixedly fitted with an annular drive plate 26, and the two rotate synchronously. The drive groove 27 at the lower end of the annular drive plate 26 is slidably connected to the drive rod 28 with a clearance fit. The upper end of the drive rod 28 is fixed to the lower end of the triangular plate 24 by welding or bolt connection, etc., to realize the transmission of power and the movement control of the triangular plate 24.

[0033] The drive ring 25 is externally fixedly sleeved with the external gear ring 29, and the discharge pipe 2 is externally fixedly sleeved with the support block 210. The upper end of the support block 210 is fixedly mounted with the servo motor 211 by bolts. The output shaft of the servo motor 211 is connected to the rotating shaft 212 by a coupling to ensure stable power transmission.

[0034] One end of the rotating shaft 212 passes through the support block 210 and is fixedly sleeved with the gear 213. The gear 213 meshes with the tooth surface of the outer gear ring 29 to realize the conversion and transmission of power and drive the drive ring 25 to rotate.

[0035] A movable lifting mechanism is installed on the outside of the storage cylinder 1. Two fixed blocks 3 are symmetrically distributed and are fixedly connected to the outside of the storage cylinder 1 by welding or bolting. The inner wall of the fixed block 3 is movably sleeved with the guide rod 31 in a clearance fit. The guide rod 31 plays a guiding role to ensure the linearity of the movement of the fixed block 3.

[0036] The lower ends of the two guide rods 31 are fixed to the base plate 32 by welding or bolting. The upper end of the base plate 32 is fixedly installed with a servo electric cylinder 33 by bolts. One end of the piston rod of the servo electric cylinder 33 is fixed to the lower end of the fixed block 3 by welding or bolting, so as to realize the lifting control of the storage cylinder 1. The lower end of the base plate 32 is fixedly installed with symmetrically distributed self-locking casters 34 by bolts, which facilitates the movement and positioning of the device.

[0037] The working process of this utility model:

[0038] Step 1: When it is necessary to move the device, release the locking mechanism of the self-locking caster 34 and push the device to move to the designated position on the workshop floor. After reaching the position, control the servo electric cylinder 33 to extend and retract the piston rod of the servo electric cylinder 33, which drives the fixed block 3 to move up and down along the guide rod 31, thereby causing the storage cylinder 1 to rise or fall. After adjusting to the appropriate height, lock the self-locking caster 34 to make the device stably positioned, which is convenient for docking with production equipment such as extruders for feeding materials.

[0039] Step two: The servo motor 211 is powered on and started. The output shaft drives the rotating shaft 212 and the fixedly sleeved gear 213 to rotate. The gear 213 meshes with the outer gear ring 29, driving the outer gear ring 29 and the fixedly sleeved drive ring 25 to rotate. The annular drive plate 26 on the inner wall of the drive ring 25 rotates accordingly. The drive groove 27 at the lower end of the annular drive plate 26 cooperates with the drive rod 28, driving the triangular plate 24 to move at the lower end of the annular mounting block 21. Since the triangular plate 24 slides in the hexagonal slide groove 22 through the slider 23, the two sides of the multiple triangular plates 24 contact each other. As the triangular plate 24 moves, the size of the discharge port is changed, thereby achieving precise control of the output of polyethylene particles.

[0040] 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. An automatic feeding device for the production of ultra-high molecular weight polyethylene pipes, comprising a storage cylinder (1), characterized in that: A discharge control mechanism is provided below the storage cylinder (1), and the discharge control mechanism includes a discharge pipe (2), the upper end of which is fixedly connected to the lower end of the storage cylinder (1); The lower end of the discharge pipe (2) is fixedly connected to an annular mounting block (21). The inner wall of the annular mounting block (21) is connected to the inner wall of the discharge pipe (2). The lower end of the annular mounting block (21) is provided with a hexagonal sliding groove (22). The inner wall of the hexagonal sliding groove (22) is slidably connected to a slider (23) arranged in an annular array. The lower end of the slider (23) is fixedly connected to a triangular plate (24). The upper end of the triangular plate (24) is in contact with the lower end of the annular mounting block (21). The two inclined sides of the multiple triangular plates (24) are in contact with each other. The storage cylinder (1) is equipped with a movable lifting mechanism on its exterior.

2. The automatic feeding device for producing ultra-high molecular weight polyethylene pipes according to claim 1, characterized in that: The annular mounting block (21) is rotatably connected to a drive ring (25) via a bearing. An annular drive plate (26) is fixedly sleeved on the inner wall of the drive ring (25). The upper end of the annular drive plate (26) is in contact with the lower end of the triangular plate (24).

3. The automatic feeding device for producing ultra-high molecular weight polyethylene pipes according to claim 2, characterized in that: The lower end of the annular drive plate (26) is provided with drive grooves (27) arranged in an annular array. The inner wall of the drive groove (27) is slidably connected to a drive rod (28). The upper end of the drive rod (28) is fixedly connected to the lower end of the triangular plate (24).

4. The automatic feeding device for producing ultra-high molecular weight polyethylene pipes according to claim 2, characterized in that: An external gear ring (29) is fixedly sleeved on the outside of the drive ring (25), and a support block (210) is fixedly sleeved on the outside of the discharge pipe (2). A servo motor (211) is fixedly installed on the upper end of the support block (210), and a rotating shaft (212) is fixedly installed on the output shaft of the servo motor (211) through a coupling.

5. The automatic feeding device for producing ultra-high molecular weight polyethylene pipes according to claim 4, characterized in that: One end of the rotating shaft (212) passes through the support block (210) and is fixedly sleeved with a gear (213), the tooth surface of the gear (213) meshing with the tooth surface of the outer gear ring (29).

6. The automatic feeding device for producing ultra-high molecular weight polyethylene pipes according to claim 1, characterized in that: The movable lifting mechanism includes a fixed block (3), two fixed blocks (3) are symmetrically distributed and their opposing surfaces are fixedly connected to the outside of the storage cylinder (1), and the inner wall of the fixed block (3) is movably sleeved with symmetrically distributed guide rods (31).

7. An automatic feeding device for the production of ultra-high molecular weight polyethylene pipes according to claim 6, characterized in that: The lower ends of the two guide rods (31) are fixedly connected to a base plate (32), and a servo electric cylinder (33) is fixedly installed on the upper end of the base plate (32). One end of the piston rod of the servo electric cylinder (33) is fixedly connected to the lower end of the fixed block (3), and self-locking casters (34) are fixedly installed on the lower end of the base plate (32) in a symmetrical arrangement.

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