Double-screw metering feeding machine

Abstract

The utility model discloses a double-screw metering feeding machine, which relates to the technical field of plastic processing and comprises a material storage barrel, a top cover plate used for leading in materials is mounted at the top end of the material storage barrel, a feeding pipe used for separating and transferring the materials is arranged at the bottom end of the material storage barrel, and a fixing support used for supporting and fixing the feeding pipe is arranged on the outer side of the feeding pipe. Discharging sleeves are arranged at the two ends of the feeding pipe, the discharging sleeves are arranged at the ends of the feeding pipe in a sliding mode, and the discharging sleeves and the ends of the feeding pipe are used for sealing batch; meanwhile, when the feeding device is used, the mode that a compression spring is matched with a limiting rod for guiding is adopted, the situation that in the prior art, a feeding pipe is possibly damaged due to the fact that workers discover that post-treatment is not timely can be effectively avoided, materials can be collected by a material collecting box under the condition that the pressure is too large, and the working efficiency is improved. And treatment time is provided for treatment of workers, materials can be protected, material waste is prevented, and the materials are fed again through the feeding hopper and recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic processing, specifically is a double screw metering feeding machine. BACKGROUND

[0002] The statements herein provide background only for the utility model and do not necessarily constitute the prior art.

[0003] When carrying out plastic material recycling processing, the plastic raw material needs to be delivered to the inside of the extruder through the feeding machine first, and then the extrusion molding work is carried out. The commonly used screw pushing structure can prevent the inside of the conveying pipe from being blocked, but this design will cause the material to accumulate towards the inlet end. There is also a design of setting up an anti-backflow device, but the anti-backflow design may cause the problem of increasing the pressure inside the conveying pipe.

[0004] The prior art discloses a double screw metering feeding machine with the application number CN202021214842.4, which delivers the material through the way of reverse screw conveying to both ends, and monitors the internal gravity through sensors and other means, so as to facilitate the observation and processing of the operator.

[0005] However, the prior art still has some defects, such as the technical solution of the application number CN202021214842.4, which needs to be processed in time by the operator during use, and once the processing is not timely, the accumulation of raw materials will still occur, which will cause the pressure to accumulate in the pipe and have some adverse effects on the pipe, and even cause the equipment to be damaged. The gravity sensor used can monitor the overall weight of the equipment, but it lacks corresponding monitoring for the position where the problem occurs, and cannot effectively help the operator to provide processing time. UTILITY MODEL CONTENT

[0006] In order to solve the problems mentioned in the background, the purpose of the utility model is to provide a double screw metering feeding machine.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A double screw metering feeding machine, comprising a storage bucket, a top cover plate for guiding the material is installed at the top end of the storage bucket, a feeding pipe for separating and transporting the material is arranged at the bottom end of the storage bucket, a fixing support for supporting and fixing the feeding pipe is arranged outside the feeding pipe, a discharge sleeve is arranged at both ends of the feeding pipe, the discharge sleeve is slidingly arranged at the end of the feeding pipe and sealingly cooperates with the end of the feeding pipe, a discharge hole is formed at the end of the discharge sleeve away from the feeding pipe for discharging material.

[0009] Further, the resistance component is provided by a compression spring surrounding each limiting rod.

[0010] Further, a stirring barrel is fixedly installed at the bottom end of the storage barrel, a separation partition plate is fixedly connected to the outer side wall of the feeding pipe at the end of the stirring barrel away from the storage barrel, and the storage barrel is communicated with the inside of the feeding pipe through the stirring barrel.

[0011] Further, a feeding hopper is fixedly installed at the top end of the top cover plate.

[0012] Further, a transmission protection shell is arranged inside the feeding pipe, the transmission protection shell is arranged at the bottom end of the separation partition plate, a gear set for transmission is arranged inside the transmission protection shell, two corresponding side screw rotating shafts are arranged in the transmission protection shell corresponding to the structure of the feeding pipe, and a side screw impeller is fixedly installed at the outer side of each side screw rotating shaft.

[0013] Further, a limiting rod is fixedly installed at each side of the fixed support, a limiting baffle is fixedly installed at the end of each limiting rod away from the fixed support, a compression spring is arranged at the outer side of each limiting rod, the compression spring provides the function of the resistance component, and the movement range of the discharging sleeve is limited.

[0014] A bottom support is fixedly connected to the bottom end of the fixed support at both ends, and a supporting leg is fixedly installed at the end of the bottom support away from the fixed support.

[0015] Further, a feeding outlet is arranged at the end of the discharging sleeve away from the feeding pipe, which realizes the function of the discharging hole, a limiting lug is fixedly connected to the position of the limiting rod at the outer side of the discharging sleeve, and a hanging rack is fixedly connected to the bottom end of the discharging sleeve.

[0016] The limiting rod is connected to the limiting baffle through the hole of the limiting lug, and the end of the compression spring away from the fixed support is fixedly installed inside the limiting lug.

[0017] A material collecting opening is arranged at the position of the material collecting box inside the discharging sleeve, which communicates the discharging sleeve with the material collecting box.

[0018] Further, a material collecting inlet is arranged at the position of the compression spring inside the material collecting box, a material collecting cabin is arranged inside the material collecting box, and an observation belt is arranged at the outer side of the material collecting box.

[0019] Further, a driving core is arranged inside the fixed support, a driving shaft is connected to the output end of the driving core, a material extruding impeller is fixedly connected to the outer side of the driving shaft, a material distributing shaft is fixedly connected to the top end of the driving shaft, and a stirring side rod is fixedly installed at the outer side of the material distributing shaft.

[0020] Further, the bottom of each discharge sleeve is provided with a material collecting box in communication with the discharge sleeve through a communication port, the communication port is located at one end of the corresponding feeding pipe of the discharge sleeve, and the communication port is in communication with the end of the feeding pipe after the end of the discharge sleeve away from the feeding pipe moves to a predetermined position.

[0021] The utility model discloses the beneficial effects of:

[0022] The utility model discloses the beneficial effects of: BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model discloses further illustrated in conjunction with the drawings.

[0024] Figure 1 It is the whole structure schematic diagram of the utility model;

[0025] Figure 2 It is the internal structure section view of the utility model;

[0026] Figure 3 It is the fixed support structure schematic diagram of the utility model;

[0027] Figure 4 It is the internal structure section view of the utility model;

[0028] Figure 5 It is the discharge sleeve structure schematic diagram of the utility model;

[0029] Figure 6 It is Figure 2 Enlarged schematic diagram of A place in;

[0030] Figure 7 It is the drive core mechanism schematic diagram of the utility model.

[0031] In the drawing: 1, storage barrel;11, stirring barrel;12, separation baffle;2, top cover plate;21, feeding hopper;3, feeding pipe;31, transmission protection shell;32, side screw rotation shaft;33, side screw impeller;4, fixed support;41, limiting rod;42, limiting baffle;43, compression spring;44, bottom support;45, support leg;5, discharge sleeve;51, feeding outlet;52, limiting lug;53, hanging frame;54, material collecting box;6, material collecting box;61, material collecting inlet;62, material collecting cabin;63, observation belt;7, drive core;71, drive shaft;72, extruding impeller;73, distributing shaft;74, stirring side rod. DETAILED DESCRIPTION

[0032] The utility model will be made further detailed explanation in combination with the drawings and examples, obviously, the described example is only a part of the utility model example, rather than all examples. In the case of no conflict, the example and the feature in the example in this application can be combined mutually. Based on the example in the utility model, all other examples obtained by the ordinary skill in the art without making creative labor, all belong to the scope of the utility model protection.

[0033] Reference Figures 1 to 7 .

[0034] A double screw rod metering feeder, as shown in Figure 1 The utility model discloses a double screw rod metering feeder, as shown in figure 1, including the storage barrel 1, its characterized in that, the top cover plate 2 for guiding material is installed at the top of storage barrel 1, the feeding pipe 3 for separating and transporting material is arranged at the bottom of storage barrel 1, the fixed support 4 for supporting and fixing feeding pipe 3 is arranged on the outside of feeding pipe 3, and the discharge sleeve 5 is arranged at both ends of feeding pipe 3, the discharge sleeve 5 is slidably arranged at the end of feeding pipe 3 and is sealed with the end of feeding pipe 3, and the discharge hole is formed in the end of discharge sleeve 5 away from feeding pipe 3 for discharging.

[0035] Further include resistance component, for the discharge sleeve 5 is applied to the push of moving to the direction close to the feeding pipe 3, and the extrusion force generated when the inside of feeding pipe 3 is blocked can push the discharge sleeve 5 to the end away from feeding pipe 3.

[0036] Through the top cover plate 2, the inside material is protected in the process of material stirring guide feeding, prevents the outside sundries from entering the inside of storage barrel 1, causes the pollution of raw material in the inside of storage barrel 1. Feeding pipe 3 guides the material treated in the inside of storage barrel 1 to both ends and carries out feeding treatment. Fixed support 4 is responsible for protecting and supporting feeding pipe 3, also provides the function of limiting discharge sleeve 5, and collection box 6 is used for carrying the material overflowed due to improper internal treatment.

[0037] As shown in Figure 2 The utility model discloses a double screw rod metering feeder, as shown in figure 1, including the storage barrel 1, its characterized in that, the top cover plate 2 for guiding material is installed at the top of storage barrel 1, the feeding pipe 3 for separating and transporting material is arranged at the bottom of storage barrel 1, the fixed support 4 for supporting and fixing feeding pipe 3 is arranged on the outside of feeding pipe 3, and the discharge sleeve 5 is arranged at both ends of feeding pipe 3, the discharge sleeve 5 is slidably arranged at the end of feeding pipe 3 and is sealed with the end of feeding pipe 3, and the discharge hole is formed in the end of discharge sleeve 5 away from feeding pipe 3 for discharging.

[0038] As shown in Figure 4 The top end of top cover plate 2 is fixedly installed with feeding hopper 21.

[0039] The inside of the storage barrel 1 is fed through the feed hopper 21 at the top end of the top cover plate 2, the material is fed from the inside of the storage barrel 1 to the bottom end of the stirring barrel 11, and is extruded in the direction of the bottom end of the separation baffle 12 at the stirring barrel 11. The separation baffle 12 provides the function of keeping the material moving direction and also provides the function of preventing the material from flowing back to a certain extent.

[0040] As shown in Figure 3 The inside of the feeding pipe 3 is provided with a transmission protection shell 31, which is arranged at the bottom end of the separation baffle 12. The inside of the transmission protection shell 31 is provided with a gear set for transmission. The gear set inside the transmission protection shell 31 is provided with two corresponding side screw rotating shafts 32 corresponding to the structure of the feeding pipe 3. The outside of each side screw rotating shaft 32 is fixedly provided with a side screw impeller 33.

[0041] The gear set inside the transmission protection shell 31 is driven by the driving core 7 to drive the side screw rotating shaft 32 inside the feeding pipe 3 to rotate, so that the side screw impeller 33 can be driven to pressurize the material entering from the top.

[0042] As shown in Figure 4 The two sides of the fixed support 4 are fixedly provided with a limiting rod 41. The outer side of each limiting rod 41 is surrounded by a compression spring 43, which provides the function of a resistance component to limit the movement range of the discharge sleeve 5.

[0043] The bottom end of the fixed support 4 at both ends is fixedly connected with a bottom support 44, and the end away from the fixed support 4 is fixedly provided with a supporting leg 45.

[0044] As shown in Figure 4 and Figure 5 The end away from the feeding pipe 3 of the discharge sleeve 5 is provided with a feeding outlet 51 for realizing the function of the discharge hole. The outer side of the discharge sleeve 5 is fixedly connected with a limiting lug 52 corresponding to the position of the limiting rod 41. The bottom end of the discharge sleeve 5 is fixedly connected with a hanging rack 53.

[0045] The limiting rod 41 penetrates the hole of the limiting lug 52 and is connected to the limiting baffle 42. The end away from the fixed support 4 of the compression spring 43 is fixedly installed inside the limiting lug 52.

[0046] The inside of the discharge sleeve 5 is provided with a material outlet 54 corresponding to the position of the material collecting box 6, which is used to communicate the discharge sleeve 5 and the material collecting box 6.

[0047] The limiting baffle 42 cooperates with the limiting rod 41 at both ends of the fixed support 4 to limit the discharge sleeve 5, so that the compression spring 43 is always in a balanced state in the normal working state. When internal blockage or other problems occur, causing excessive internal pressure, the discharge sleeve 5 will be pushed outward. At this time, the tension of the compression spring 43 is used to balance this force to protect the equipment. The limiting baffle 42 limits this pushing to prevent the feeding pipe 3 from being damaged due to excessive pressure.

[0048] As shown in Figure 6 The inside of the material collecting box 6 is provided with a material collecting inlet 61 corresponding to the position of the compression spring 43. The inside of the material collecting box 6 is provided with a material collecting cabin 62. The outside of the material collecting box 6 is provided with an observation belt 63.

[0049] As shown in Figure 7 The inside of the fixed support 4 is provided with a driving core 7. The driving core 7 is connected with a driving shaft 71 at the output end. The driving shaft 71 is fixedly connected with an extruding impeller 72 at the outside. The driving shaft 71 is fixedly connected with a distributing shaft 73 at the top end. The distributing shaft 73 is fixedly installed with a stirring side rod 74 at the outside.

[0050] The driving shaft 71 is driven to rotate by the driving core 7 at the bottom end through a gear set. The extruding impeller 72 at the outside of the driving shaft 71 is used to transport the material entering the stirring barrel 11 to the bottom end. The distributing shaft 73 and the stirring side rod 74 cooperate to coarsely process the entering raw material, preventing the material itself from adhering and affecting subsequent processing.

[0051] The bottom of each discharge sleeve 5 is installed with a material collecting box 6. The material collecting box 6 is communicated with the discharge sleeve 5 through a communication port. The communication port is located at one end of the corresponding feeding pipe 3 of the discharge sleeve 5. When the discharge sleeve 5 moves to a predetermined position away from the feeding pipe 3, the communication port is communicated with the end of the feeding pipe 3.

[0052] In use, first, the material to be processed is introduced into the storage barrel 1 from the feeding hopper 21. The inside of the storage barrel 1 is rotated by 73 to drive 74 to coarsely process the material, so that the material can avoid adhesion caused by the shape of the material in the inside. 72 is used to guide the material into the feeding pipe 3 inside through 12, so that the material is divided from 12 and enters the two sides of the feeding pipe 3. The material entering the feeding pipe 3 will be affected by the side screw impeller 33 inside the feeding pipe 3, so that the material moves from the position of the transmission protection shell 31 to the position of the feeding outlet 51 for correct discharging work.

[0053] When the material shape causes the material to be discharged, the material will be accumulated inside the discharge sleeve 5, at this time, the discharge sleeve 5 will be pushed outward due to the internal material accumulation, the limiting rod 41 outside the fixed support 4 is used to guide the movement, the compression spring 43 is used to balance the movement, and the limiting baffle 42 is used to provide a limit for the movement.

[0054] When the material is accumulated excessively, the discharge sleeve 5 is pushed to the limit position of the limiting baffle 42, at this time, the material inlet 61 at the top of the material collecting box 6 is connected to the residual material port 54 at the bottom of the discharge sleeve 5, so that the material is discharged from the residual material port 54 and enters the inside of the material collecting cabin 62, thereby achieving protection for the working state of the equipment.

[0055] The material collecting box 6 can be manually replaced by the worker, and the observation belt 63 outside the material collecting box 6 is transparent, so that the internal material accumulation can be observed from the outside, thereby facilitating the replacement of the material collecting box 6.

[0056] The above shows and describes the basic principle, main features and advantages of the utility model. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

[0057] It should be noted that if the utility model embodiments involve directional indications (such as up and down), the directional indications are only used to explain the relative position relationship, movement condition and the like between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0058] In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, if the utility model embodiments involve "first", "second" and the like, the "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, "multiple" means two or more. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the utility model.

Claims

1. A twin-screw metering feeder comprising a hopper (1), characterized in that, The top end of the storage barrel (1) is provided with a top cover plate (2) for feeding material, the bottom end of the storage barrel (1) is provided with a feeding pipe (3) for separating and transporting material, the outer side of the feeding pipe (3) is provided with a fixed support (4) for supporting and fixing the feeding pipe (3), both ends of the feeding pipe (3) are provided with a discharge sleeve (5), the discharge sleeve (5) is slidingly arranged at the end of the feeding pipe (3) and sealingly cooperates with the end of the feeding pipe (3), and the end of the discharge sleeve (5) away from the feeding pipe (3) is provided with a discharge hole for discharging material; Further comprising a resistance component for applying a pushing force to the discharge sleeve (5) to move towards the feeding pipe (3), and the extrusion force generated when the feeding pipe (3) is blocked can push the discharge sleeve (5) to move away from the feeding pipe (3).

2. A twin screw gravimetric feeder as claimed in claim 1, wherein, The bottom end of the storage barrel (1) is fixedly provided with a stirring barrel (11), the end of the stirring barrel (11) away from the storage barrel (1) is fixedly connected with a separation partition plate (12) penetrating the outer side wall of the feeding pipe (3), and the storage barrel (1) is communicated with the inner side of the feeding pipe (3) through the stirring barrel (11).

3. A twin screw gravimetric feeder as claimed in claim 1, wherein, The top end of the top cover plate (2) is fixedly provided with a feeding hopper (21).

4. A twin screw gravimetric feeder as claimed in claim 2, wherein, The inner side of the feeding pipe (3) is provided with a transmission protection shell (31), the transmission protection shell (31) is arranged at the bottom end of the separation partition plate (12), the inner side of the transmission protection shell (31) is provided with a gear set for transmission, and the gear set in the transmission protection shell (31) is correspondingly provided with two corresponding side screw rotating shafts (32) according to the structure of the feeding pipe (3), and the outer side of each side screw rotating shaft (32) is fixedly provided with a side screw impeller (33).

5. A twin screw gravimetric feeder as claimed in claim 4, wherein, The fixed support (4) is fixedly provided with a limiting rod (41) on both sides, the end of each limiting rod (41) away from the outer side of the fixed support (4) is fixedly provided with a limiting baffle (42), and the outer side of each limiting rod (41) is surrounded by a compression spring (43), which provides the function of the resistance component and limits the movement range of the discharge sleeve (5); The bottom end of the fixed support (4) at both ends is fixedly connected with a bottom support (44), and the end of the bottom support (44) away from the fixed support (4) is fixedly provided with a supporting leg (45).

6. A twin screw gravimetric feeder as claimed in claim 5, wherein, The end of the discharge sleeve (5) away from the feeding pipe (3) is provided with a feeding outlet (51) for realizing the function of the discharge hole, the outer side of the discharge sleeve (5) is fixedly connected with a limiting lug (52) corresponding to the position of the limiting rod (41), and the bottom end of the discharge sleeve (5) is fixedly connected with a hanging rack (53); The limiting rod (41) penetrates the hole of the limiting lug (52) and is connected to the limiting baffle (42), and the end of the compression spring (43) away from the fixed support (4) is fixedly arranged in the inner side of the limiting lug (52); The inner side of the discharge sleeve (5) is provided with a material collecting box (6) at a position corresponding to the position of the limiting rod (41), which is used to communicate the discharge sleeve (5) with the material collecting box (6).

7. A twin screw gravimetric feeder as claimed in claim 6, wherein, The inside of the aggregate box (6) is provided with an aggregate inlet (61) corresponding to the position of the compression spring (43), the inside of the aggregate box (6) is provided with an aggregate cabin (62), and the outside of the aggregate box (6) is provided with an observation belt (63).

8. A twin screw gravimetric feeder as claimed in claim 7, wherein, The inside of the fixed support (4) is provided with a driving core (7), the output end of the driving core (7) is connected with a driving rotating shaft (71), the outer side of the driving rotating shaft (71) is fixedly connected with an extruding impeller (72), the top end of the driving rotating shaft (71) is fixedly connected with a distributing rotating shaft (73), and the outer side of the distributing rotating shaft (73) is fixedly installed with a stirring side rod (74).

9. A twin screw gravimetric feeder as claimed in claim 1, wherein, The bottom of each of the discharge sleeves (5) is provided with an aggregate box (6), the aggregate box (6) is communicated with the discharge sleeve (5) through a communication port, the communication port is located at one end of the corresponding feeding pipe (3) of the discharge sleeve (5), and after the discharge sleeve (5) moves to a predetermined position away from the feeding pipe (3), the communication port is communicated with the end of the feeding pipe (3).

Images