Feeding device for film blowing machine

Abstract

The utility model discloses a feeding device for a film blowing machine, which comprises a shell, a feeding mechanism, a crushing mechanism, a filter screen and an output mechanism, the shell is provided with an inner cavity, and the shell is provided with a first feeding hole and a first discharging hole which are communicated with the inner cavity; the feeding mechanism comprises a feeding hopper and a reciprocating driving structure, the feeding hopper is movably connected to the first feeding port, and the reciprocating driving structure is connected with the feeding hopper and used for driving the feeding hopper to reciprocate along the first feeding port; the smashing mechanism comprises a smashing box, a smashing rod and a first driving structure, the smashing box is arranged in the inner cavity and located under the first feeding port, the smashing rod extends in the horizontal direction and is rotatably connected into the smashing box, a plurality of smashing blades are arranged on the peripheral wall of the smashing rod, and the first driving structure is arranged in the smashing box; the first driving structure is connected with the smashing rod and can drive the smashing rod to rotate. The feeding device for the film blowing machine provided by the embodiment of the utility model can realize uniform blanking and has a good material crushing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, in particular to a feeding device for film blowing machines. Background Art

[0002] The film produced by the film blowing machine is suitable for various high-end film packaging. This film can be widely used in light and heavy packaging due to its good barrier properties, freshness preservation, moisture resistance, frost resistance, oxygen isolation, and oil resistance, such as various fresh fruits, meat products, pickles, fresh milk, liquid beverages, medical supplies, etc. In the prior art, dry polyethylene particles are added to the lower hopper, and the particles enter the screw from the hopper by their own weight. When the particles come into contact with the thread bevel, the rotating bevel surface generates a thrust perpendicular to the bevel surface on the plastic, pushing the plastic particles forward. During the pushing process, the plastic gradually melts due to the friction between the plastic and the screw, the plastic and the barrel, the collision and friction between the particles, and the heating outside the barrel.

[0003] In the prior art, polyethylene particles are easily blocked in the lower hopper during the feeding process, which prevents the polyethylene particles from continuously entering the screw, resulting in intermittent and unstable discharge. Moreover, the existing lower hopper cannot make the polyethylene particles fall evenly during feeding, which leads to uneven discharge. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a feeding device for a film blowing machine, which can achieve uniform material feeding, has a good material crushing effect, can avoid blockage, and achieves continuous material discharge.

[0005] According to the utility model, a feeding device for a film blowing machine includes a shell, a feeding mechanism, a crushing mechanism, a filter screen and an output mechanism, the shell is provided with an inner cavity, and the top and bottom of the shell are respectively provided with a first feeding port and a first discharging port connected to the inner cavity; the feeding mechanism includes a feeding hopper and a reciprocating driving structure, the feeding hopper is movably connected to the first feeding port, the reciprocating driving structure is installed on the shell, the reciprocating driving structure is connected to the feeding hopper and is used to drive the hopper to reciprocate along the first feeding port; the crushing mechanism includes a crushing box, a crushing rod and a first driving structure, the crushing The box is installed in the inner cavity and is located directly below the first feed port, the top of the crushing box is provided with a second feed port, the bottom of the crushing box is provided with a second discharge port, the crushing rod extends in the horizontal direction and is rotatably connected to the crushing box, the outer peripheral wall of the crushing rod is provided with a plurality of crushing blades, the first driving structure is installed in the crushing box, the first driving structure is connected to the crushing rod and can drive the crushing rod to rotate; the filter screen is provided directly below the second discharge port, and the first discharge port is located directly below the filter screen; the output mechanism is connected to the shell and docked with the first discharge port.

[0006] The feeding device for the film blowing machine according to the above embodiment of the utility model has at least the following beneficial effects:

[0007] The feeding device for the film blowing machine provided by the embodiment of the utility model is provided with a feeding hopper for feeding through a movable connection on the shell, and the feeding hopper is driven to reciprocate by a reciprocating drive structure, so that the feeding hopper can evenly scatter the material below, which is convenient for subsequent crushing operations; a crushing mechanism is provided below the feed hopper to evenly crush the falling material, and a filter is provided below the crushing mechanism for filtering; an output mechanism is provided at the bottom of the shell to achieve continuous discharge of the material. The feeding device for the film blowing machine provided by the embodiment of the utility model can achieve uniform material discharge, and has a good material crushing effect, can avoid blockage, and achieves continuous discharge of the material.

[0008] According to some embodiments of the utility model, the reciprocating drive structure includes a mounting bracket and a telescopic cylinder, the mounting bracket is fixedly connected to the top of the shell, the telescopic cylinder is installed on the mounting bracket, and the piston rod of the telescopic cylinder extends in a horizontal direction and is fixedly connected to the feed hopper.

[0009] According to some embodiments of the utility model, two crushing rods are provided, and the two crushing rods are arranged side by side and cooperate with each other. The first driving structure includes a first motor, and the first motor is installed in the crushing box. The first motor is connected to the crushing rod and drives the crushing rod to rotate.

[0010] According to some embodiments of the present invention, the crushing box is provided with a plurality of the second discharge ports, and the plurality of the second discharge ports are evenly spaced apart along the axial direction of the crushing rod.

[0011] According to some embodiments of the utility model, the inner cavity is provided with two circulating conveying mechanisms, which include a circulating box, a first conveying shaft, a second driving structure and a discharge pipe. The two circulating boxes are respectively arranged on opposite sides of the filter screen, and the lower part of the circulating box is provided with a third feed port docked with the filter screen. The first conveying shaft extends in a vertical direction and is rotatably connected in the circulating box. The outer peripheral wall of the first conveying shaft is provided with a first conveying blade along the length direction. The second driving structure is connected to the first conveying shaft and drives the first conveying shaft to rotate. One end of the discharge pipe is connected to the upper part of the circulating box, and the other end of the discharge pipe is docked with the second feed port.

[0012] According to some embodiments of the present utility model, the second driving structure includes a second motor and a gear pair, the second motor is installed on the outer wall of the shell, the gear pair is installed in the circulation box, and the second motor is connected to the first conveying shaft through the gear pair.

[0013] According to some embodiments of the present invention, both sides of the filter screen are inclined downward and are respectively connected to the two third feed ports.

[0014] According to some embodiments of the present invention, the filter screen is provided with a vibrator.

[0015] According to some embodiments of the present invention, the inner cavity is provided with two baffles, the baffles extend in a vertical direction, the baffles are located between the first feed port and the second feed port, and the two baffles are respectively located on opposite sides of the first feed port.

[0016] According to some embodiments of the utility model, the output mechanism includes a conveying box, a second conveying shaft, a third driving structure and an extrusion tube, the conveying box is connected to the bottom of the shell, the top of the conveying box is provided with a fourth feed port connected to the first discharge port, the second conveying shaft extends in a horizontal direction and is rotatably connected in the conveying box, the outer peripheral wall of the second conveying shaft is provided with second conveying blades along the length direction, the third driving structure is connected to the second conveying shaft and drives the second conveying shaft to rotate, the extrusion tube is arranged on the side wall of the conveying box, and the extrusion tube is provided with a valve.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 It is a schematic structural diagram of a feeding device for a film blowing machine in some embodiments of the utility model;

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 It is a schematic diagram of the structure of the crushing mechanism of some embodiments of the utility model.

[0022] Wherein, the reference numerals are:

[0023] Shell 100; inner cavity 110; first feed port 120; first discharge port 130; baffle 140;

[0024] Feed hopper 200; mounting bracket 210; telescopic cylinder 220;

[0025] Crushing box 300; second feeding port 301; second discharging port 302; crushing rod 310; crushing blade 320; first motor 330;

[0026] Filter 400;

[0027] Circulation box 500; third feed port 501; first conveying shaft 510; first conveying blade 520; discharge pipe 530; second motor 540; gear pair 550;

[0028] Conveying box 600; fourth feed port 601; second conveying shaft 610; second conveying blade 620; extrusion tube 630; third motor 640. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the utility model, unless otherwise clearly defined, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the technical personnel in the relevant technical field can reasonably determine the specific meaning of the above words in the utility model in combination with the specific content of the technical solution. In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In the description of the specification, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0033] Reference Figures 1 to 3According to the utility model, a feeding device for a film blowing machine includes a shell 100, a feeding mechanism, a crushing mechanism, a filter screen 400 and an output mechanism. The shell 100 is provided with an inner cavity 110, and the top and bottom of the shell 100 are respectively provided with a first feed port 120 and a first discharge port 130 connected to the inner cavity 110; the feeding mechanism includes a feed hopper 200 and a reciprocating drive structure, the feed hopper 200 is movably connected to the first feed port 120, the reciprocating drive structure is installed on the shell 100, the reciprocating drive structure is connected to the feed hopper 200 and is used to drive the hopper to reciprocate along the first feed port 120; the crushing mechanism includes a crushing box 300, a crushing rod 310 and a first drive structure, the crushing box 300 is installed in the inner cavity 110 and is located directly below the first feed port 120. A second feed port 301 is provided on the top of the crushing box 300, and a second discharge port 302 is provided at the bottom of the crushing box 300. The crushing rod 310 extends in the horizontal direction and is rotatably connected to the crushing box 300. A plurality of crushing blades 320 are provided on the outer peripheral wall of the crushing rod 310. The first driving structure is installed in the crushing box 300, and the first driving structure is connected to the crushing rod 310 and can drive the crushing rod 310 to rotate; the filter screen 400 is provided directly below the second discharge port 302, and the first discharge port 130 is located directly below the filter screen 400; the output mechanism is connected to the shell 100 and docked with the first discharge port 130.

[0034] Specifically, the feeding device for the film blowing machine provided by the embodiment of the utility model is provided with a feeding hopper 200 for feeding through a movable connection on the housing 100, and the feeding hopper 200 is driven to reciprocate through a reciprocating drive structure, so that the feeding hopper 200 can evenly scatter the material below, which is convenient for the subsequent crushing operation; a crushing mechanism is provided below the feeding hopper 200 to evenly crush the falling material, and a filter 400 is provided below the crushing mechanism for filtering; an output mechanism is provided at the bottom of the housing 100 to achieve continuous discharge of the material. The feeding device for the film blowing machine provided by the embodiment of the utility model can achieve uniform material discharge, and has a good material crushing effect, can avoid blockage, and achieve continuous discharge of the material.

[0035] Further, see Figure 1 According to some embodiments of the utility model, the reciprocating drive structure includes a mounting bracket 210 and a telescopic cylinder 220. The mounting bracket 210 is fixedly connected to the top of the shell 100, and the telescopic cylinder 220 is installed on the mounting bracket 210. The piston rod of the telescopic cylinder 220 extends in the horizontal direction and is fixedly connected to the feed hopper 200, so that the feed hopper 200 is driven to reciprocate by the telescopic cylinder 220, so that the material in the feed hopper 200 can be evenly scattered below.

[0036] Further, see Figure 1 and Figure 3According to some embodiments of the present invention, two crushing rods 310 are provided, and the two crushing rods 310 are arranged side by side and cooperate with each other, which can achieve a better crushing effect, make the material more finely crushed, and further reduce the possibility of material blockage. The first driving structure includes a first motor 330, and the first motor 330 is installed in the crushing box 300. The first motor 330 is connected to the crushing rod 310 and drives the crushing rod 310 to rotate.

[0037] Further, see Figure 1 and Figure 3 According to some embodiments of the present invention, the crushing box 300 is provided with a plurality of second discharge ports 302 , and the plurality of second discharge ports 302 are evenly spaced along the axial direction of the crushing rod 310 , so that the material can be evenly dispersed into the filter screen 400 .

[0038] Further, see Figure 1 and Figure 2 According to some embodiments of the utility model, the inner cavity 110 is provided with two circulating conveying mechanisms, which include a circulating box 500, a first conveying shaft 510, a second driving structure and a discharge pipe 530. The two circulating boxes 500 are respectively arranged on opposite sides of the filter screen 400. The lower part of the circulating box 500 is provided with a third feed port 501 docked with the filter screen 400. The first conveying shaft 510 extends in a vertical direction and is rotatably connected in the circulating box 500. The outer peripheral wall of the first conveying shaft 510 is provided with a first conveying blade 520 along the length direction. The second driving structure is connected to the first conveying shaft 510 and drives the first conveying shaft 510 to rotate. One end of the discharge pipe 530 is connected to the upper part of the circulating box 500, and the other end of the discharge pipe 530 is docked with the second feed port 301.

[0039] Specifically, the unscreened and unfiltered material on the filter screen 400 enters the circulation box 500 through the third feed port 501, and the second driving structure drives the first conveying shaft 510 to rotate, thereby driving the first conveying blade 520 to rotate. The first conveying blade 520 can convey the material to move to the discharge pipe 530, and the material reaches the crushing box 300 through the discharge pipe 530 for further crushing, making the material more finely divided, which is convenient for screening and filtering of the filter screen 400.

[0040] Further, see Figure 1 and Figure 2 According to some embodiments of the present invention, the second driving structure includes a second motor 540 and a gear pair 550. The second motor 540 is installed on the outer wall of the shell 100, and the gear pair 550 is installed in the circulation box 500. The second motor 540 is connected to the first conveying shaft 510 through the gear pair 550.

[0041] Further, see Figure 1According to some embodiments of the present invention, both sides of the filter screen 400 are inclined downward and are respectively connected to the two third feed ports 501 so that the material can smoothly enter the third feed ports 501.

[0042] Furthermore, according to some embodiments of the present invention, the filter screen 400 is provided with a vibrator, so as to facilitate screening and filtering of the filter screen 400.

[0043] Further, see Figure 1 According to some embodiments of the utility model, the inner cavity 110 is provided with two baffles 140, which extend in the vertical direction. The baffle 140 is located between the first feed port 120 and the second feed port 301, and the two baffles 140 are respectively located on opposite sides of the first feed port 120, thereby preventing the material from falling to other places during the falling process.

[0044] Further, see Figure 1 According to some embodiments of the utility model, the output mechanism includes a conveying box 600, a second conveying shaft 610, a third driving structure and an extrusion tube 630, the conveying box 600 is connected to the bottom of the shell 100, and the top of the conveying box 600 is provided with a fourth feed port 601 connected to the first discharge port 130, the second conveying shaft 610 extends in a horizontal direction and is rotatably connected in the conveying box 600, and the outer peripheral wall of the second conveying shaft 610 is provided with a second conveying blade 620 along the length direction, the third driving structure is connected to the second conveying shaft 610 and drives the second conveying shaft 610 to rotate, and the extrusion tube 630 is arranged on the side wall of the conveying box 600, and the extrusion tube 630 is provided with a valve.

[0045] Specifically, the material filtered on the filter screen 400 enters the conveying box 600 through the second discharge port 302 and the fourth feed port 601 in turn. The third driving structure drives the second conveying shaft 610 to rotate, thereby driving the second conveying blade 620 to rotate. The second conveying blade 620 can convey the material to the extrusion tube 630 and extrude it through the extrusion tube 630, thereby realizing continuous discharge of the material.

[0046] Further, see Figure 1 According to some embodiments of the present invention, the third driving structure includes a third motor 640, which is mounted on the outer wall of the conveying box 600, and the third motor 640 is connected to the second conveying shaft 610 and drives the second conveying shaft 610 to rotate.

[0047] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A feeding device for a film blowing machine, characterized in that: include: A shell body is provided with an inner cavity, and a first feed inlet and a first discharge outlet communicating with the inner cavity are respectively provided at the top and the bottom of the shell body; A feeding mechanism, comprising a feeding hopper and a reciprocating drive structure, wherein the feeding hopper is movably connected to the first feeding port, the reciprocating drive structure is mounted on the housing, and the reciprocating drive structure is connected to the feeding hopper and is used to drive the hopper to reciprocate along the first feeding port; A pulverizing mechanism, comprising a pulverizing box, a pulverizing rod and a first driving structure, wherein the pulverizing box is installed in the inner cavity and is located directly below the first feed port, a second feed port is provided on the top of the pulverizing box, a second discharge port is provided on the bottom of the pulverizing box, the pulverizing rod extends in a horizontal direction and is rotatably connected to the pulverizing box, a plurality of pulverizing blades are provided on the outer peripheral wall of the pulverizing rod, and the first driving structure is installed in the pulverizing box, the first driving structure is connected to the pulverizing rod and can drive the pulverizing rod to rotate; A filter screen is arranged directly below the second discharge port, and the first discharge port is located directly below the filter screen; The output mechanism is connected to the bottom of the shell and docked with the first discharge port.

2. The feeding device for a film blowing machine according to claim 1, characterized in that: The reciprocating drive structure comprises a mounting bracket and a telescopic cylinder, wherein the mounting bracket is fixedly connected to the top of the shell, the telescopic cylinder is installed on the mounting bracket, and the piston rod of the telescopic cylinder extends in a horizontal direction and is fixedly connected to the feed hopper.

3. The feeding device for a film blowing machine according to claim 1, characterized in that: The two crushing rods are arranged side by side and cooperate with each other. The first driving structure includes a first motor, which is installed in the crushing box. The first motor is connected to the crushing rod and drives the crushing rod to rotate.

4. The feeding device for a film blowing machine according to claim 3, characterized in that: The pulverizing box is provided with a plurality of the second discharge ports, and the plurality of the second discharge ports are evenly spaced apart along the axial direction of the pulverizing rod.

5. The feeding device for a film blowing machine according to claim 1, characterized in that: The inner cavity is provided with two circulating conveying mechanisms, which include a circulating box, a first conveying shaft, a second driving structure and a discharge pipe. The two circulating boxes are respectively arranged on opposite sides of the filter screen. The lower part of the circulating box is provided with a third feed port connected to the filter screen. The first conveying shaft extends in a vertical direction and is rotatably connected in the circulating box. The outer peripheral wall of the first conveying shaft is provided with a first conveying blade along the length direction. The second driving structure is connected to the first conveying shaft and drives the first conveying shaft to rotate. One end of the discharge pipe is connected to the upper part of the circulating box, and the other end of the discharge pipe is connected to the second feed port.

6. The feeding device for a film blowing machine according to claim 5, characterized in that: The second driving structure includes a second motor and a gear pair. The second motor is installed on the outer wall of the shell, the gear pair is installed in the circulation box, and the second motor is connected to the first conveying shaft through the gear pair.

7. The feeding device for a film blowing machine according to claim 5, characterized in that: Both sides of the filter screen are inclined downward and are connected to the two third feed ports respectively.

8. The feeding device for a film blowing machine according to claim 5, characterized in that: The filter screen is provided with a vibrator.

9. The feeding device for a film blowing machine according to claim 1, characterized in that: The inner cavity is provided with two baffles, which extend in a vertical direction and are located between the first feed port and the second feed port. The two baffles are respectively located on two opposite sides of the first feed port.

10. The feeding device for a film blowing machine according to claim 1, characterized in that: The output mechanism includes a conveying box, a second conveying shaft, a third driving structure and an extrusion tube. The conveying box is connected to the bottom of the shell. The top of the conveying box is provided with a fourth feed port connected to the first discharge port. The second conveying shaft extends in a horizontal direction and is rotatably connected in the conveying box. The outer peripheral wall of the second conveying shaft is provided with second conveying blades along the length direction. The third driving structure is connected to the second conveying shaft and drives the second conveying shaft to rotate. The extrusion tube is arranged on the side wall of the conveying box, and the extrusion tube is provided with a valve.

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