Automatic feeding device for pencil lead pressing

Abstract

The utility model discloses an automatic feeding device for pencil core pressing, and relates to the technical field of automatic feeding of pressed cores. The automatic feeding device for pencil lead pressing comprises an outer hanging frame connected with the back of a lead pressing machine, a feeding compartment is arranged in the outer hanging frame, an opening used for filling materials is formed in the top end of the outer hanging frame, and an inclined feeding channel is formed in the feeding compartment through inclined plates symmetrically welded to the two ends of the outer hanging frame; and a lifting seat internally provided with a sliding rail groove is arranged at the bottom of the outer hanging frame, the lifting seat is slidably connected with a lifting switch plate for controlling feeding through the sliding rail groove in the lifting seat, and the lifting switch plate controls closing of a feeding opening in the inclined feeding channel. Automatic door opening and closing are achieved through the feeding port located at the tail of the whole mechanism, materials can be automatically added, automatic closing due to excessive feeding of the materials can be prevented, the whole feeding mechanism is located at the joint of the device and the core pressing machine, vibration force brought by circulation of the core pressing machine every time is further guaranteed, and automatic falling of the materials is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic core pressing and feeding, in particular to an automatic core pressing and feeding device for pencil cores. Background Technique

[0002] In today's manufacturing field, the pencil core production industry is relatively a niche industry. Although pencil cores, as an important part of writing and drawing tools, the market demand always exists stably, due to the limited industry scale, the research and development and manufacturing of equipment specifically for pencil core production have not yet formed a mature and large-scale market.

[0003] Currently, in the process of pencil core production, enterprises are faced with the dilemma of lacking equipment options. There is almost no complete set of formed equipment on the market that can be directly applied to pencil core production. Each production enterprise has to rely on its own R & D strength to design and manufacture production equipment by itself to meet the production needs. Among them, the core pressing process is at the core of the pencil core production process. The main task of this process is to press the raw materials into the required pencil core shape and specifications through specific processes. However, the traditional core pressing process relies heavily on manual operation and requires a large amount of labor input. Workers not only need to perform repetitive labor for a long time, but also due to the influence of human factors, the quality stability and production efficiency of products are often difficult to be effectively guaranteed.

[0004] With the continuous progress of technology and the development trend of automation and intelligence in the manufacturing industry, the pencil core production industry also urgently needs to realize the automation and unmanned operation of the production process to improve production efficiency, reduce labor costs, and enhance the stability and consistency of product quality. In this context, we are committed to developing a new type of core pressing equipment, aiming to achieve the automated operation of the core pressing process through advanced technical means, so that each production beat can be automatically completed, thereby reducing the dependence on manual labor, improving production efficiency and product quality, and promoting the development of the pencil core production industry towards automation and intelligence. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides an automatic core pressing and feeding device for pencil cores, which solves the problems put forward in the above background technique.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: an automatic core pressing and feeding device for pencil cores, including an external frame connected to the back of the core pressing machine, a feeding compartment is arranged inside the external frame, and an opening for filling materials is arranged at the top of the external frame. The external frame forms an inclined feeding channel in the feeding compartment through symmetrically welded inclined plates at both ends.

[0007] A lifting seat with a slide rail groove is provided at the bottom of the outer frame. The lifting seat is close to one side of the feeding port opened in the inclined feeding channel. A lifting switch plate for controlling feeding is slidably connected to the lifting seat through the slide rail groove therein, and the lifting switch plate controls the closing of the feeding port in the inclined feeding channel.

[0008] A further improvement of the technical solution of the present utility model is that when the lifting switch plate is in the lowest state, it abuts against the bottom of a feeding seat. The lifting switch plate closes the feeding seat in the lowest state. The feeding seat and the lifting seat are welded together, and the feeding seat is butted against the rear end face of the hopper of the pressing machine and the feeding port end face.

[0009] A further improvement of the technical solution of the present utility model is that a protruding bump is welded on the lifting switch plate. The lifting switch plate is snap-connected to the cylinder structure in the core pressing machine through the bump. The whole inclined plate is inclined and tightened downward; the feeding seat is butted against the rear side of the hopper of the core pressing machine in a straight line. Because the lifting seat has the guidance of the slide rail groove and the cooperation of the lifting switch plate, the door opening and closing operation can be completed. The specific operation is that the bump of the lifting switch of the lifting switch plate is snap-connected to the cylinder on the back of the core pressing machine. When the core pressing operation is performed, the cylinder will guide the lifting of the bump of the lifting switch plate through the travel switch in each round. When the whole lifting switch plate is lifted, the feeding port of the bin is opened. Because the inclined plate is inclined and tightened downward, the material flows out from below the lifting switch plate under the influence of gravity and enters the hopper of the core pressing machine through the feeding seat, completing the automatic feeding operation.

[0010] A further improvement of the technical solution of the present utility model is that an anti-blocking module is provided in the inclined feeding channel. The anti-blocking module consists of a driving box provided at the upper part of the inclined feeding channel, a driving motor located in the driving box and whose output end is connected to a driving shaft through a coupling, and a sector gear key-connected to the driving shaft and located at the transmission port in the driving box; there is still some material sticking to the feeding compartment in the inclined feeding channel. At this time, to improve the feeding amount of the material and economic benefits, the driving motor is started, the sector gear meshes with the toothed plate, and the movable block is offset on one side of the inclined feeding channel in the meshing area of the sector gear. The pushing plate pushes some materials to release the sticking state with the inclined feeding channel and slides out from the feeding port. When the meshing area of the sector gear rotates away from the toothed plate, the movable block resets under the action of the return spring; under the continuous output of the driving motor, the movable block and the pushing plate keep reciprocating. If another part of the material is to be scraped off, just change the rotation direction.

[0011] A further improvement of the technical solution of the present utility model is that the sector gear meshes with a toothed plate sliding on the inclined feeding channel. The toothed plate is welded to a movable block with a guide rod passing through it. A limiting seat with an angle matching the inclined feeding channel and having a notch is provided on the movable block. A return spring is sleeved between the guide rod and the movable block.

[0012] A further improvement of the technical solution of the utility model is that a plurality of electric push rods are arranged in the limit seat to limit and connect the push plate, the push plate slides on the inclined feeding channel, and a partition welded to the inner wall of the feeding compartment is arranged directly above the limit seat, the partition and the opening form a feeding channel that does not interfere with the anti-blocking module, and a universal wheel for movement is installed at the bottom of the external frame.

[0013] Beneficial Effects

[0014] The utility model provides an automatic pencil lead pressing and feeding device. Compared with the prior art, it has the following beneficial effects:

[0015] 1. The automatic feeding device for pencil lead pressing cores can realize automatic opening and closing of the door through the feeding port located at the tail of the whole mechanism during each operation cycle of the pressing machine, which can not only allow the material to be added automatically, but also prevent the material from being automatically closed due to excessive feeding. The whole feeding mechanism is located at the connection between the device and the pressing machine, which further ensures the vibration force brought by each cycle of the pressing machine and realizes the automatic falling of the material.

[0016] 2. The pencil lead pressing and automatic feeding device completes the displacement of the movable block on one side of the inclined feeding channel in the sector tooth meshing area, and the push plate pushes part of the material to a state where the material is released from the inclined feeding channel and slides out from the feeding port, thereby scraping off and feeding the remaining adhered material in the inclined feeding channel, thereby improving the material feeding amount and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model from the side;

[0019] Figure 3 This is a schematic diagram of the structure of the anti-blocking module of the utility model;

[0020] Figure 4 It is a top view of the external hanging frame of the utility model.

[0021] In the figure: 1, external frame; 2, opening; 3, inclined plate; 4, universal wheel; 5, feeding seat; 6, lifting seat; 6-1, slide rail groove; 7, lifting switch plate; 7-1, raised block;

[0022] 8. Drive box; 8-1. Drive motor; 8-2. Drive shaft; 8-3. Fan gear;

[0023] 8-3a, tooth plate; 8-3b, movable block; 8-3c, guide rod; 8-3d, limit seat; 8-3e, return spring;

[0024] 8-3d-1, Electric push rod; 8-3d-2, Pushing plate;

[0025] 9, Partition board. Detailed implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Refer to Figures 1-4 , the present invention provides 3 technical solutions:

[0028] Embodiment 1:

[0029] An automatic feeding device for pressing pencil cores includes an external frame 1 connected to the back of a core pressing machine. An upper feeding compartment is provided inside the external frame 1, and an opening 2 for filling materials is provided at the top of the external frame 1. The external frame 1 forms an inclined feeding channel in the upper feeding compartment through inclined plates 3 symmetrically welded at both ends;

[0030] A lifting seat 6 with a slide rail groove 6-1 opened therein is provided at the bottom of the external frame 1. The lifting seat 6 is close to one side of the feeding port opened in the inclined feeding channel. The lifting seat 6 is slidably connected with a lifting switch plate 7 for controlling feeding through the slide rail groove 6-1 therein, and the lifting switch plate 7 controls the closing of the feeding port in the inclined feeding channel.

[0031] In this embodiment, the filling material is filled through the upper opening, and the material is filled into the material bin at the position of the opening 2, with a volume of more than 1m 3 above. Because of the function of installing 4 universal wheels, it can be easily moved manually. When three-dimensional storage is required, the stacker can be used to stack the whole unit;

[0032] When feeding operation is required, it is manually pushed to the rear of the core pressing machine; the external frame 1 is pushed into the automatic feeding slot at the back of the core pressing machine, and the hopper is automatically lifted by the elevator of the core pressing machine.

[0033] Embodiment 2:

[0034] On the basis of Embodiment 1: When the lifting switch plate 7 is in the lowest state, it abuts against the bottom of a feeding seat 5. The lifting switch plate 7 closes the feeding seat 5 in the lowest state. The feeding seat 5 is welded to the lifting seat 6 integrally, and the feeding seat 5 is docked with the rear end face of the hopper of the core pressing machine and the feeding port end face.

[0035] There is a protruding bump 7-1 welded on the lifting switch board 7. The lifting switch board 7 is snap-connected to the cylinder structure inside the core pressing machine through the bump 7-1. The overall inclined plate 3 is inclined and tightened downward.

[0036] Based on the first embodiment, a line is connected to the rear side of the hopper of the core pressing machine of the feeding seat 5. Because the lifting seat 6 has the guidance of the slide rail groove 6-1 and the cooperation of the lifting switch board 7, the door opening and closing operation can be completed. The specific operation is that the bump 7-1 of the lifting switch of the lifting switch board 7 is snap-connected to the cylinder on the back of the core pressing machine. When the core pressing operation is carried out, the cylinder will guide the lifting of the bump 7-1 of the lifting switch board 7 through the travel switch in each round. When the overall switch of the lifting switch board 7 rises, the feeding port of the silo opens. Because the inclined plate 3 is inclined and tightened downward, the material flows out from below the lifting switch board 7 under the influence of gravity and enters the hopper of the core pressing machine through the feeding seat 5 to complete the automatic feeding operation.

[0037] Embodiment Three:

[0038] An anti-blocking module is arranged in the inclined feeding channel. The anti-blocking module is composed of a driving box 8 arranged at the upper part of the inclined feeding channel, a driving motor 8-1 located in the driving box 8 and whose output end is connected to a driving shaft 8-2 through a coupling, and a sector gear 8-3 which is key-connected to the driving shaft 8-2 and is located at the transmission port 8a in the driving box 8.

[0039] After the first and second embodiments complete the process of piling materials to the core pressing machine, there are still some materials sticking to the inner part of the feeding compartment on the inclined feeding channel. At this time, to improve the feeding amount of materials and economic benefits, the driving motor 8-1 is started, and the sector gear 8-3 meshes with the toothed plate 8-3a. In the meshing area of the sector gear 8-3, the movable block 8-3b moves to one side of the inclined feeding channel, and the pushing plate 8-3d-2 pushes some materials to release the sticking state with the inclined feeding channel and slides out from the feeding port. When the meshing area of the sector gear 8-3 rotates away from the toothed plate 8-3a, the movable block 8-3b resets under the action of the return spring 8-3e; under the continuous output of the driving motor 8-1, the movable block 8-3b and the pushing plate 8-3d-2 keep reciprocating. If another part of the materials needs to be scraped off, just change the rotation direction.

[0040] The sector gear 8-3 meshes with a toothed plate 8-3a sliding on the inclined feeding channel. The toothed plate 8-3a is welded on a movable block 8-3b through which a guide rod 8-3c passes. The movable block 8-3b is provided with a limit seat 8-3d with an angle matching the inclined feeding channel and having a notch. A return spring 8-3e is sleeved between the guide rod 8-3c and the movable block 8-3b.

[0041] Inside the limit seat 8-3d, a number of electric push rods 8-3d-1 are arranged to limit and connect the push plate 8-3d-2. The push plate 8-3d-2 slides on the inclined feeding channel. And a partition plate 9 welded to the inner wall of the feeding compartment is arranged directly above the limit seat 8-3d. The partition plate 9 and the opening 2 form a feeding channel that does not interfere with the anti-blocking module. The bottom of the external frame 1 is equipped with universal wheels 4 for movement.

[0042] The feeding channel formed by the partition plate 9 and the opening 2 that does not interfere with the anti-blocking module avoids the interference and contact between the material and other structures on the basis of sacrificing a certain amount of space for stacking materials, ensuring the smooth progress of the process of feeding the material to the core pressing machine. On the basis of the original scraping, the electric push rod 8-3d-1 further ensures the normal feeding of the material.

[0043] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0044] During use, the filling material is filled through the upper opening, and the material is filled into the bin at the position of the opening 2, which has a volume of more than 1m 3 above. Because of the function of the universal wheels 4 installed, it can be easily moved manually. When three-dimensional storage is required, a stacker can be used to stack the whole unit;

[0045] When feeding operation is required, it is manually pushed to the rear of the core pressing machine; the external frame 1 is pushed into the automatic feeding slot on the back of the core pressing machine, and the hopper is automatically lifted by the elevator of the core pressing machine. At this time, the feeding seat 5 is aligned with the rear side of the hopper of the core pressing machine in a straight line. Because the lifting seat 6 has the guidance of the slide rail groove 6-1 and the cooperation of the lifting switch plate 7, the door opening and closing operation can be completed. The specific operation is that the raised block 7-1 of the lifting switch of the lifting switch plate 7 is docked with the cylinder buckle on the back of the core pressing machine. When the core pressing operation is performed, the cylinder will guide the lifting of the raised block 7-1 of the lifting switch plate 7 through the travel switch in each round. When the whole lifting switch plate 7 is lifted, the feeding port of the bin is opened. Because the inclined plate 3 is tightened downward, the material flows out from below the lifting switch plate 7 under the influence of gravity and enters the hopper of the core pressing machine through the feeding seat 5 to complete the automatic feeding operation;

[0046] After the feeding is completed, the drive motor 8-1 is started, the fan gear 8-3 meshes with the toothed plate 8-3a, and the movable block 8-3b is offset on one side of the inclined feeding channel in the meshing area of the fan gear 8-3. The push plate 8-3d-2 pushes part of the material to relieve the adhesion state with the inclined feeding channel and slides out from the feeding port. When the meshing area of the fan gear 8-3 rotates away from the toothed plate 8-3a, the movable block 8-3b is reset under the action of the return spring 8-3e to complete the scraping and feeding of the material.

[0047] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic pencil lead pressing device, comprising an external frame (1) connected to the back of a pencil lead pressing machine, characterized in that: A loading compartment is provided inside the external hanging frame (1), and an opening (2) for filling materials is provided at the top of the external hanging frame (1); the external hanging frame (1) forms an inclined loading channel in the loading compartment through inclined plates (3) symmetrically welded at both ends; A lifting seat (6) with a slide rail groove (6-1) provided therein is provided at the bottom of the external hanging frame (1); the lifting seat (6) is close to one side of a feeding port provided in the inclined feeding channel; the lifting seat (6) is slidably connected to a lifting switch plate (7) for controlling feeding through the slide rail groove (6-1) therein; the lifting switch plate (7) controls the closing of the feeding port in the inclined feeding channel.

2. The automatic pencil lead pressing and feeding device according to claim 1, characterized in that: When the lifting switch plate (7) is at its lowest height, it abuts against the bottom of a feeding seat (5). The lifting switch plate (7) closes the feeding seat (5) in its lowest state. The feeding seat (5) and the lifting seat (6) are welded together. The feeding seat (5) is connected to the rear end face of the hopper of the pressing machine and the end face of the loading port.

3. The automatic pencil lead pressing and feeding device according to claim 1, characterized in that: A raised protrusion block (7-1) is welded on the lifting switch plate (7), and the lifting switch plate (7) is snap-jointed with the cylinder structure in the core pressing machine via the protrusion block (7-1), and the inclined plate (3) is overall inclined downwardly and tightened.

4. The automatic pencil lead pressing and feeding device according to claim 1, characterized in that: An anti-blocking module is arranged in the inclined feeding channel, and the anti-blocking module is composed of a driving box (8) arranged at the upper part of the inclined feeding channel, a driving motor (8-1) located in the driving box (8) and having an output end connected to a driving shaft (8-2) through a coupling, and a sector tooth (8-3) key-connected to the driving shaft (8-2) and located at a transmission port (8a) in the driving box (8).

5. The automatic pencil lead pressing and feeding device according to claim 4, characterized in that: The sector teeth (8-3) are meshed with a tooth plate (8-3a) that slides at the inclined feeding channel. The tooth plate (8-3a) is welded to a movable block (8-3b) that passes through a guide rod (8-3c). The movable block (8-3b) is provided with a limit seat (8-3d) having a notch and an angle that matches the inclined feeding channel. A return spring (8-3e) is sleeved between the guide rod (8-3c) and the movable block (8-3b).

6. The automatic pencil lead pressing and feeding device according to claim 5, characterized in that: The limit seat (8-3d) is provided with a plurality of electric push rods (8-3d-1) to limit the connection of the push plate (8-3d-2), and the push plate (8-3d-2) slides on the inclined feeding channel. A partition plate (9) welded to the inner wall of the feeding compartment is provided directly above the limit seat (8-3d). The partition plate (9) and the opening (2) form a feeding channel that does not interfere with the anti-blocking module. A universal wheel (4) for movement is installed at the bottom of the external frame (1).

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