Automatic grading, screening and compression molding device for raw materials of paper pulp file box

Abstract

The utility model provides a paper pulp file box raw material automatic grading screening and compression molding device which comprises a feeding frame, a screening frame is fixed to the tail end of the feeding frame, five screening conveying belts are arranged in the screening frame, a compression molding frame is arranged close to the tail end of the screening frame, and four upper molds are arranged on the bottom face of a top frame of the compression molding frame. And a mold groove is formed in the compression molding frame. A feeding conveying belt is installed at the position close to the end of a feeding port of a feeding frame, a compression molding frame is arranged at the position close to the tail end of a screening frame, four upper molds are arranged on the bottom face of a top frame of the compression molding frame, and a mold groove is formed in the compression molding frame and located below each upper mold. Paper pulp fibers which are sequentially conveyed to the four screening conveying belts to be classified can be conveyed into the mold grooves in a classified mode, then the upper mold presses downwards, the file boxes obtained after compression molding fall into the collecting groove, the automatic classification screening and compression molding process of paper pulp file box raw materials is completed, and convenience and practicability are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulp molded file boxes, and in particular relates to a device for automatic grading, screening and molding of raw materials for pulp file boxes. Background Art

[0002] Pulp molding uses pulp as raw material and molding as forming technology. The raw material is usually liquid pulp. However, there are few products that directly use dry pulp for molding, and related molding devices are rarely reported. With the increase in pulp consumption, innovative use of dry pulp to prepare new products is one of the development trends of pulp products. At present, pulp morphology varies greatly, and direct physical sorting requires a lot of manpower, which will bring many problems, such as it is difficult to maintain uniform material quality, the material selection and classification time is too long, the efficiency is low, the primary processing, semi-automatic processing, manual filling, slow speed, high error rate, and extremely inconvenient.

[0003] Based on this, an automatic grading, screening and molding device for pulp file box raw materials is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an automatic grading, screening and molding device for pulp file box raw materials in view of the deficiencies of the above-mentioned prior art, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a pulp file box raw material automatic grading screening and molding device, including a feed rack, a feed conveyor belt is installed near the feed port end of the feed rack, a screening rack is fixed at the tail end of the feed rack, five screening conveyor belts are arranged in the screening rack, and the middle screening conveyor belt is used in conjunction with the feed conveyor belt;

[0006] A compression molding frame is arranged near the tail end of the screening frame, and four upper molds are arranged on the bottom surface of the top frame of the compression molding frame. A mold groove is arranged below each upper mold in the compression molding frame, and a collecting groove is arranged below each mold groove.

[0007] Furthermore, a first camera is arranged near the top surface of the feed rack, and a second camera is arranged near the bottom surface of the feed rack.

[0008] Furthermore, the screening frame is provided with four screening conveyor belts on both sides corresponding to the four mold slots in the compression molding frame.

[0009] Furthermore, lifting cylinders are vertically arranged at the four end corners of the screening rack, and connecting rods are fixed to the tops of the two lifting cylinders. The straight line where the connecting rods are located is perpendicular to the straight line where the screening conveyor belts are located. A transverse rod is slidably connected between the two connecting rods, and the transverse rod is pushed by an electric push rod arranged in the connecting rod to complete the movement between the two connecting rods.

[0010] Furthermore, two suction cups are provided on the bottom surface of the transverse rod.

[0011] Furthermore, two telescopic rods are provided at the side ends of the compression molding frame, a connecting plate is fixed between the two telescopic rods near the side ends of each mold groove, a push plate is fixed on one side of the connecting plate near the mold groove, and the push plate cooperates with the mold groove for use.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model installs a feeding conveyor belt at the end of the feeding port near the feeding frame, the feeding conveyor belt is used for feeding pulp fibers, a screening frame is fixed at the tail end of the feeding frame, and when the pulp fibers start to be transmitted and pass through the first camera and the second camera, scanning imaging reference comparison is performed to form an electrical signal, five screening conveyor belts are arranged in the screening frame, and the middle screening conveyor belt is used in conjunction with the feeding conveyor belt to receive the pulp fibers fed through the feeding conveyor belt, the pulp fibers continue to move on the middle screening conveyor belt to the bottom of the suction cup, the lifting cylinder is driven down by the electrical signal to place the suction cup on the surface of the pulp fibers, the suction cup absorbs the pulp fibers, the lifting cylinder rises to the original position, the transverse rod moves left and right under the pushing action of the electric push rod in the connecting rod, and the pulp after reference comparison is moved to the bottom of the suction cup. The fibers are placed on any one of the four screening conveyor belts on both sides according to the classification level. The classification of the four screening conveyor belts on both sides is preset by the system and is divided into first-class, second-class, third-class and fourth-class pulp fibers. A molding frame is arranged near the tail end of the screening frame. Four upper molds are arranged on the bottom of the top frame of the molding frame. A mold slot is arranged under each upper mold in the molding frame. The four screening conveyor belts on both sides of the screening frame correspond to the four mold slots in the molding frame. The pulp fibers that have been classified on the four screening conveyor belts in turn can be sent into the mold slots according to categories, and then the upper mold applies downward pressure. A collecting slot is arranged under each mold slot, and the molded file box falls into the collecting slot, completing the automatic grading, screening and molding process of the pulp file box raw materials, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal connection structure of the molded frame of the utility model.

[0016] Description of reference numerals:

[0017] 1-feeding rack; 2-screening rack; 21-lifting cylinder; 22-connecting rod; 23-transverse rod; 24-suction cup; 3-molding rack; 31-top rack; 32-telescopic rod; 33-connecting plate; 34-push plate; 4-feeding conveyor belt; 5-screening conveyor belt; 6-upper mold; 7-mold slot; 8-collecting slot. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] like Figure 1-2 As shown, the utility model provides a technical solution: an automatic grading, screening and molding device for pulp file box raw materials, including a feed rack 1, a feed conveyor belt 4 is installed near the end of the feed port of the feed rack 1, and the feed conveyor belt 4 is used for feeding pulp fibers.

[0020] A screening rack 2 is fixed at the tail end of the feed rack 1, a first camera 11 is arranged near the top surface of the feed rack 1, and a second camera 12 is arranged near the bottom surface of the feed rack 1. When the pulp fibers start to be transmitted through the first camera 11 and the second camera 12, scanning and imaging reference comparison are performed to form an electrical signal. The process of scanning and imaging reference comparison by the first camera 11 and the second camera 12 to form an electrical signal is an existing technology, and its detailed principle will not be repeated here.

[0021] Five screening conveyor belts 5 are arranged in the screening frame 2 , and the middle screening conveyor belt 5 cooperates with the feeding conveyor belt 4 to receive the pulp fibers fed in through the feeding conveyor belt 4 .

[0022] The four end corners of the screening frame 2 are respectively vertically provided with lifting cylinders 21, and connecting rods 22 are fixed on the tops of the two lifting cylinders 21. The straight line where the connecting rods 22 are located is perpendicular to the straight line where the screening conveyor belt 5 is located. A transverse rod 23 is slidably connected between the two connecting rods 22, and the transverse rod 23 is pushed by an electric push rod arranged in the connecting rod 22 to complete the movement between the two connecting rods 22. Two suction cups 24 are arranged on the bottom surface of the transverse rod 23; the pulp fibers continue to move on the middle screening conveyor belt 5 to the bottom of the suction cups 24, and the lifting cylinders 21 are driven down by electrical signals to place the suction cups 24 on the surface of the pulp fibers. The suction cups 24 absorb the pulp fibers, and the lifting cylinders 21 rise to the original position. The transverse rods 23 move left and right under the pushing action of the electric push rods in the connecting rods 22, and the referenced and compared pulp fibers are placed on any one of the four screening conveyor belts 5 on both sides according to the classification level. The classification of the four screening conveyor belts 5 on both sides is preset by the system and is divided into first-class, second-class, third-class and fourth-class pulp fibers.

[0023] A molding frame 3 is arranged near the tail end of the screening frame 2, and four upper molds 6 are arranged on the bottom surface of the top frame 31 of the molding frame 3. A mold slot 7 is arranged below each upper mold 6 in the molding frame 3. Four screening conveyor belts 5 are arranged on both sides of the screening frame 2, corresponding to the four mold slots 7 in the molding frame 3. The classified pulp fibers sent to the four screening conveyor belts 5 in turn are sent to the mold slots 7 according to categories, and then the upper mold 6 applies downward pressure, and a collecting slot 8 is arranged below each of the mold slots 7, and the molded pulp file box falls into the collecting slot 8.

[0024] When the upper mold 6 moves up and returns to its original position, two telescopic rods 32 are further provided at the side end of the molding frame 3. The telescopic rods 32 are driven by a hydraulic cylinder arranged at the side end of the molding frame 3. A connecting plate 33 is fixed between the two telescopic rods 32 near the side end of each mold groove 7. A push plate 34 is fixed on the side of the connecting plate 33 near the mold groove 7. When in use, the telescopic rod 32 is extended by the hydraulic cylinder, driving the connecting rod 14 to push the push plate 15 to push the remaining bamboo strips in the mold groove 7 onto the base of the molding frame 3, and then the telescopic rod 32 is shortened, driving the push plate 15 to retract to the original position, thereby completing the reuse of the mold groove 7.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for automatic grading, screening and molding of pulp file box raw materials, characterized by: It comprises a feeding frame (1), a feeding conveyor belt (4) is installed near the feeding port end of the feeding frame (1), a screening frame (2) is fixed at the tail end of the feeding frame (1), five screening conveyor belts (5) are arranged in the screening frame (2), and the middle screening conveyor belt (5) cooperates with the feeding conveyor belt (4) for use; A compression molding frame (3) is arranged near the rear end of the screening frame (2); four upper molds (6) are arranged on the bottom surface of the top frame (31) of the compression molding frame (3); a mold groove (7) is arranged below each upper mold (6) in the compression molding frame (3); and a collecting groove (8) is arranged below each mold groove (7).

2. The automatic grading, screening and molding device for pulp file box raw materials according to claim 1 is characterized in that: The feeding rack (1) is provided with a first camera (11) near the top surface, and the feeding rack (1) is provided with a second camera (12) near the bottom surface.

3. The automatic grading, screening and molding device for pulp file box raw materials according to claim 1 is characterized in that: The screening frame (2) is provided with four screening conveyor belts (5) on both sides corresponding to the four mold grooves (7) in the compression molding frame (3).

4. The automatic grading, screening and molding device for pulp file box raw materials according to claim 1 is characterized in that: Lifting cylinders (21) are vertically arranged at the four end corners of the screening frame (2), and connecting rods (22) are fixed at the top ends of the two lifting cylinders (21). The straight line where the connecting rods (22) are located is perpendicular to the straight line where the screening conveyor belt (5) is located. A transverse rod (23) is slidably connected between the two connecting rods (22), and the transverse rod (23) is pushed by an electric push rod arranged in the connecting rod (22) to complete the movement between the two connecting rods (22).

5. The automatic grading, screening and molding device for pulp file box raw materials according to claim 4 is characterized in that: Two suction cups (24) are arranged on the bottom surface of the transverse rod (23).

6. The automatic grading, screening and molding device for pulp file box raw materials according to claim 1 is characterized in that: The side ends of the compression molding frame (3) are also provided with two telescopic rods (32), and a connecting plate (33) is fixed between the two telescopic rods (32) near the side ends of each mold groove (7), and a push plate (34) is fixed on one side of the connecting plate (33) near the mold groove (7), and the push plate (34) and the mold groove (7) are used in cooperation with each other.

Images