Extrusion device

Abstract

The utility model discloses a material extruding device. The material extruding device comprises a mounting frame, a compression roller assembly, a scraper blade and a first driving assembly, the pressing roller assembly comprises an upper pressing roller and a lower pressing roller, and the upper pressing roller and the lower pressing roller are rotationally connected to the mounting frame and used for extruding packaging bags. The scraping plate is located on one radial side of the lower pressing roller, the scraping plate is movably connected to the mounting frame in the axial direction of the lower pressing roller, and the scraping plate is suitable for at least scraping and brushing the surface of the lower pressing roller in the moving process; the first driving assembly is connected with the pressing roller assembly and used for driving the upper pressing roller and the lower pressing roller to rotate in the opposite directions. Through the arrangement, the collection rate of the extrusion device on the residual glue in the packaging bag can be improved.

Description

Technical Field

[0001] The utility model relates to a material extrusion device, in particular to an extrusion device. Background Art

[0002] Industrial glue is an adhesive used to bond different objects together. In some industries with a large amount of glue usage, for the convenience of replacing industrial glue, it is usually packaged in a packaging bag and placed in a container, and is taken from the plastic bag during use. To avoid waste caused by residual industrial glue in the packaging bag, workers need to cut open the packaging bag and use a scraper to scrape and collect the residual industrial glue in the packaging bag. This method of collecting the residual industrial glue in the packaging bag has low efficiency.

[0003] In the related art, an extrusion device is used to extrude the residual industrial glue in the packaging bag so that the residual industrial glue in the packaging bag is extruded and collected. However, after the extrusion device completes the extrusion of the packaging bag, residual glue will adhere to the extrusion device, and the collection rate is low. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an extrusion device, which can improve the collection rate of the residual glue in the packaging bag by the extrusion device.

[0005] The extrusion device according to an embodiment of the utility model includes:

[0006] A mounting frame:

[0007] A pressure roller assembly, including an upper pressure roller and a lower pressure roller, the upper pressure roller and the lower pressure roller are respectively rotatably connected to the mounting frame, and the upper pressure roller and the lower pressure roller are used to squeeze the packaging bag;

[0008] A scraper, located on one side in the radial direction of the lower pressure roller, the scraper is configured to be movably connected to the mounting frame along the axial direction of the lower pressure roller, and is adapted to scrape at least the surface of the lower pressure roller during the movement;

[0009] A first driving assembly, connected to the pressure roller assembly, the first driving assembly is used to drive the upper pressure roller and the lower pressure roller to rotate in opposite directions.

[0010] The extrusion device according to an embodiment of the utility model has at least the following beneficial effects:

[0011] In an embodiment of the present utility model, by providing a scraper slidably connected to the mounting frame, after the pressing roller assembly completes the extrusion of the residual glue in the packaging bag, the scraper can move axially relative to the lower pressing roller along the lower pressing roller, and at least brush the surface of the lower pressing roller, so that the residual glue adhering to the lower pressing roller falls off and is collected, thereby improving the collection rate of the residual glue by the material extrusion device, realizing the effective separation of the packaging bag and the residual glue, and the operation is convenient. In addition, when the scraper completes the collection of the residual glue on the lower pressing roller, to a certain extent, the cleaning work of the lower pressing roller is also realized, sharing the subsequent maintenance work of the pressing roller assembly.

[0012] According to some embodiments of the present utility model, the scrapers are respectively provided at both ends of the lower pressing roller.

[0013] According to some embodiments of the present utility model, the scraper is provided with a first brushing edge and a second brushing edge. The first brushing edge and the second brushing edge are respectively arranged circumferentially along the outer circumferences of the upper pressing roller and the lower pressing roller. The first brushing edge is used for brushing the upper pressing roller, and the second brushing edge is used for brushing the lower pressing roller.

[0014] According to some embodiments of the present utility model, the material extrusion device further includes a feeding guide rod. The feeding guide rod is located on the feeding side of the pressing roller assembly, and the feeding guide rod is connected to the mounting frame. The feeding guide rod is used for guiding the packaging bag to enter between the upper pressing roller and the lower pressing roller from the feeding side of the pressing roller assembly.

[0015] According to some embodiments of the present utility model, the feeding guide rod includes an upper guide rod and a lower guide rod. The upper guide rod and the lower guide rod are respectively connected to the mounting frame. The upper guide rod and the lower guide rod penetrate through the scraper, and the scraper is slidably matched with the upper guide rod and the lower guide rod.

[0016] According to some embodiments of the present utility model, the material extrusion device further includes a discharging guide rod. The discharging guide rod is arranged on the discharging side of the pressing roller assembly, and the discharging guide rod is used for guiding the packaging bag to discharge from the discharging side of the pressing roller assembly.

[0017] According to some embodiments of the present utility model, the first driving assembly includes a first motor, a first transmission mechanism, and a second transmission mechanism;

[0018] The first transmission mechanism is connected to the first motor and the pressing roller assembly. The first motor drives the upper pressing roller and the lower pressing roller to rotate in opposite directions through the first transmission mechanism;

[0019] The second transmission mechanism is connected to the first motor and the discharging guide rod. The first motor drives the discharging guide rod to rotate in the same direction as the lower pressing roller through the second transmission mechanism.

[0020] According to some embodiments of the present utility model, the material extrusion device further includes a second driving assembly, and the second driving assembly is used for driving the two upper pressing rollers and the lower pressing roller to approach or move away from each other.

[0021] According to some embodiments of the present utility model, the mounting frame includes a bracket and a support base, the bracket is slidably connected to the support base, and the pressing roller assembly, the scraper, and the first driving assembly are connected to the bracket.

[0022] According to some embodiments of the present utility model, the material extrusion device further includes a first storage member and a second storage member. The first storage member is located below the pressing roller assembly, and the second storage member is located below the discharge side of the pressing roller assembly. The first storage member is used to collect the material extruded from the packaging bag, and the second storage member is used to collect the bag body of the packaging bag passing through the discharge side of the pressing roller assembly.

[0023] Some additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0025] Figure 1 is a three-dimensional structural view of the material extrusion device provided by the embodiment of the present utility model;

[0026] Figure 2 is Figure 1 another three-dimensional structural view of the material extrusion device shown;

[0027] Figure 3 is Figure 1 a structural schematic diagram of the scraper shown;

[0028] Figure 4 is Figure 1 a three-dimensional structural view of the pressing roller assembly, the first driving assembly, the discharge guide rod, and the second driving assembly shown;

[0029] Figure 5 is Figure 1 a structural schematic diagram of the sliding assembly shown.

[0030] Reference numerals:

[0031] Material extrusion device 1000;

[0032] Mounting frame 10; Bracket 11; Support base 12; First opening 1201; Second opening 1202;

[0033] Pressing roller assembly 20; Upper pressing roller 21; Lower pressing roller 22; Feed side 201; Discharge side 202;

[0034] Scraper 30; First scraping edge 301; Second scraping edge 302;

[0035] The first driving assembly 40; the first motor 41; the first transmission mechanism 42; the speed reducer 421; the first gear 422; the second gear 423; the first chain 424; the third gear 425; the fourth gear 426; the second transmission mechanism 43; the fifth gear 431; the sixth gear 432; the second chain 433;

[0036] The feed guide rod 50; the upper guide rod 51; the lower guide rod 52;

[0037] The discharge guide rod 60;

[0038] The protective cover 70;

[0039] The second driving assembly 80; the first cylinder 81; the second cylinder 82;

[0040] The sliding assembly 90; the slide rail 91; the jack 9101; the slider 92; the bolt 93;

[0041] The first storage member 100;

[0042] The second storage member 110. Detailed implementation manners

[0043] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0044] In the description of the present utility model, it should be understood that the orientation descriptions such as up, down, front, back, left, right, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0045] In the description of the present utility model, the meaning of several is more than one, the meaning of a plurality is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and the second are described, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0046] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0047] In the description of the present utility model, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0048] In the related art, the material extrusion device includes a mounting frame, a pressure roller assembly and a driving assembly. The pressure roller assembly includes an upper pressure roller and a lower pressure roller. The upper pressure roller and the lower pressure roller are respectively rotatably connected to the mounting frame. The driving assembly is connected to the pressure roller assembly and is used to drive the upper pressure roller and the lower pressure roller to rotate. When in use, a packaging bag with residual industrial glue is inserted between the upper pressure roller and the lower pressure roller from the feeding side of the pressure roller assembly. During the rotation of the upper pressure roller and the lower pressure roller, the packaging bag is extruded and driven to move towards the discharging side. At the same time, the residual industrial glue in the packaging bag flows out under the extrusion of the upper pressure roller and the lower pressure roller and is collected. However, after the material extrusion device finishes the material extrusion work, some residual industrial glue will adhere to the lower pressure roller, and the collection rate is relatively low.

[0049] Please refer to Figure 1 and Figure 2 According to an embodiment of the present utility model, a material extrusion device 1000 is provided. The material extrusion device 1000 is used to extrude the residual material in a packaging bag. In this article, the material is described as glue. In practical applications, the material can also be other substances, for example, relatively viscous lubricating oil, etc.

[0050] The material extrusion device 1000 includes a mounting frame 10, a pressure roller assembly 20, a scraper 30 and a first driving assembly 40. The pressure roller assembly 20 includes an upper pressure roller 21 and a lower pressure roller 22. The upper pressure roller 21 and the lower pressure roller 22 are respectively rotatably connected to the mounting frame 10. The upper pressure roller 21 and the lower pressure roller 22 are used to extrude the packaging bag. The scraper 30 is located on one side in the radial direction of the lower pressure roller 22. The scraper is configured to be movably connected to the mounting frame 10 along the axial direction of the lower pressure roller 22 and is adapted to scrape at least the surface of the lower pressure roller 22 during the movement. The first driving assembly 40 is connected to the pressure roller assembly 20. The first driving assembly 40 is used to drive the upper pressure roller 21 and the lower pressure roller 22 to rotate in opposite directions.

[0051] In the embodiment of the present utility model, by providing a scraper 30 slidably connected to the mounting frame 10, after the pressing roller assembly 20 finishes squeezing the residual glue in the packaging bag, the scraper 30 can move axially along the lower pressing roller 22 relative to the lower pressing roller 22 and at least brush the surface of the lower pressing roller 22, so that the residual glue adhered to the lower pressing roller 22 falls off and is collected, thereby improving the collection rate of the residual glue by the material squeezing device 1000, realizing the effective separation of the packaging bag and the residual glue, and the operation is convenient. In addition, when the scraper 30 finishes collecting the residual glue on the lower pressing roller 22, to a certain extent, the cleaning work of the lower pressing roller 22 is also realized, sharing the subsequent maintenance work of the pressing roller assembly 20.

[0052] In the specific implementation process, the upper pressing roller 21 and the lower pressing roller 22 are distributed up and down, the axes of the upper pressing roller 21 and the lower pressing roller 22 are parallel to each other, the two ends of the upper pressing roller 21 and the two ends of the lower pressing roller 22 are flush, and the two ends of the upper pressing roller 21 and the two ends of the lower pressing roller 22 are respectively installed on the mounting frame 10 through bearings, and the upper pressing roller 21 and the lower pressing roller 22 can rotate relative to each other around their own axes.

[0053] The working principle of the material squeezing device 1000 in the embodiment of the present utility model is exemplarily described as follows: First, insert the opening of the packaging bag into the space between the upper pressing roller 21 and the lower pressing roller 22 from the feeding side 201 of the pressing roller assembly 20, and make the upper pressing roller 21 and the lower pressing roller 22 squeeze the packaging bag against each other, and cut an opening at the tail of the packaging bag; Then, start the first driving assembly 40 to make the upper pressing roller 21 and the lower pressing roller 22 rotate in different directions relative to each other. During this process, the upper pressing roller 21 and the lower pressing roller 22 can drive the opening of the packaging bag between the two along the direction from the feeding side 201 to the discharging side 202. At the same time, the upper pressing roller 21 and the lower pressing roller 22 squeeze the packaging bag against each other, so that the residual glue in the packaging bag is pushed to the tail of the packaging bag; Until the tail of the packaging bag also exits from between the upper pressing roller 21 and the lower pressing roller 22 at the discharging side 202 of the pressing roller assembly 20, the residual glue in the packaging bag is extruded and falls downward. During this process, part of the residual glue at the opening of the tail of the packaging bag will adhere to the surface of the lower pressing roller 22 while being extruded; Finally, use the scraper 30 to slide along the surfaces of the upper pressing roller 21 and the lower pressing roller 22 and scrape off the residual glue on the lower pressing roller 22, thereby completing the squeezing work of the material squeezing device 1000 on the packaging bag.

[0054] Wherein, the feeding side 201 and the discharging side 202 are respectively located on the opposite sides of the plane formed by connecting the axes of the upper pressing roller 21 and the lower pressing roller 22. The packaging bag can enter between the upper pressing roller 21 and the lower pressing roller 22 from the feeding side 201 and exit from between the upper pressing roller 21 and the lower pressing roller 22 from the discharging side 202.

[0055] It can be understood that at least one of the upper pressing roller 21 and the lower pressing roller 22 can move along its own radial direction, so that the upper pressing roller 21 and the lower pressing roller 22 are in an open state or a closed state. When the upper pressing roller 21 and the lower pressing roller 22 are in an open state, the upper pressing roller 21 and the lower pressing roller 22 are away from each other, and the packaging bag can enter between the upper pressing roller 21 and the lower pressing roller 22 from the feeding side 201; when the upper pressing roller 21 and the lower pressing roller 22 are in a closed state, the upper pressing roller 21 and the lower pressing roller 22 are close to each other, and the upper pressing roller 21 and the lower pressing roller 22 can squeeze the packaging bag.

[0056] When the upper pressing roller 21 and the lower pressing roller 22 are in a closed state, part of the scraper 30 is located between the upper pressing roller 21 and the lower pressing roller 22 , and the scraper 30 can scrape and brush the surfaces of the upper pressing roller 21 and the lower pressing roller 22 at the same time.

[0057] In the process of the upper pressing roller 21 and the lower pressing roller 22 driving the packaging bag to move from the feed side 201 to the discharge side 202, the thickness of the packaging bag between the upper pressing roller 21 and the lower pressing roller 22 may be uneven due to the uneven distribution of residual glue in the packaging bag, or the packaging bag may be misaligned when extending between the upper pressing roller 21 and the lower pressing roller 22, thereby causing the packaging bag to be rolled into the end position of the upper pressing roller 21 and the lower pressing roller 22. Therefore, in some embodiments, scrapers 30 are respectively provided at both ends of the lower pressure roller 22, that is, the two scrapers 30 are arranged at both ends of the lower pressure roller 22 along the axial direction of the lower pressure roller 22, and when the upper pressure roller 21 and the lower pressure roller 22 are in a closed state, the scraper 30 is located between the upper pressure roller 21 and the lower pressure roller 22. In this way, the scraper 30 can limit the movement of the packaging bag at the two end positions of the pressure roller assembly 20 to prevent the packaging bag from deviating toward the two ends of the pressure roller assembly 20 and being rolled into the two end positions of the pressure roller assembly 20, thereby ensuring that the packaging bag can move between the two ends of the pressure roller assembly 20, thereby realizing the limiting and deviation correction effects on the packaging bag.

[0058] When it is necessary to scrape residual glue on the upper pressure roller 21 and the lower pressure roller 22, the two scrapers 30 can be moved closer to the middle of the two and scrape the surfaces of the upper pressure roller 21 and the lower pressure roller 22. After the scraping is completed, the two scrapers 30 are reset to the two ends of the lower pressure roller 22.

[0059] In some embodiments, the scraper 30 can be driven by a driving mechanism to move along the axial direction of the lower pressure roller 22 to scrape the surfaces of the upper pressure roller 21 and the lower pressure roller 22. For example, the driving mechanism can be a cylinder, and the two cylinders are respectively located on the opposite sides of the two scrapers 30 and are respectively installed on the mounting frame. The output end of each cylinder is connected to a corresponding scraper 30. The two cylinders can drive the two scrapers 30 to move toward the middle of each other along the axial direction of the lower pressure roller 22, or reset to the two ends of the lower pressure roller 22. Of course, in some embodiments, the driving mechanism can be omitted, and the scraper 30 can be pushed manually.

[0060] Please refer to Figure 3 In some embodiments, the squeegee 30 is provided with a first scraping edge 301 and a second scraping edge 302. The first scraping edge 301 and the second scraping edge 302 are respectively arranged circumferentially along the outer circumferences of the upper pressing roller 21 and the lower pressing roller 22. The first scraping edge 301 corresponds to the upper pressing roller 21 and is used for scraping the surface of the upper pressing roller 21, and the second scraping edge 302 corresponds to the lower pressing roller 22 and is used for scraping the surface of the lower pressing roller 22. Through the above arrangement, the first scraping edge 301 and the second scraping edge 302 are respectively adapted to the outer circumferential contours of the upper pressing roller 21 and the lower pressing roller 22, and the first scraping edge 301 and the second scraping edge 302 can respectively fit the surfaces of the upper pressing roller 21 and the lower pressing roller 22, so as to better scrape off the residual glue adhering to the upper pressing roller 21 and the lower pressing roller 22 simultaneously, and improve the scraping rate of the residual glue.

[0061] Specifically, both the upper pressing roller 21 and the lower pressing roller 22 are cylindrical, and both the first scraping edge 301 and the second scraping edge 302 are arc-shaped and adapted to the cylindrical shape.

[0062] In some embodiments, the material extrusion device 1000 further includes a feeding guide rod 50. The feeding guide rod 50 is located on the feeding side 201 of the pressing roller assembly 20. The feeding guide rod 50 is connected to the mounting frame 10, and the feeding guide rod 50 is used for guiding the packaging bag to enter between the upper pressing roller 21 and the lower pressing roller 22 from the feeding side 201 of the pressing roller assembly 20. During use, the packaging bag can be placed on the feeding guide rod 50 on the feeding side 201 of the pressing roller assembly 20. The feeding guide rod 50 supports the packaging bag, so that there is a certain distance between the tail of the packaging bag and the pressing roller assembly 20 in the horizontal direction, avoiding the tail of the packaging bag drooping below the pressing roller assembly 20 and affecting the collection work of the residual glue.

[0063] In some embodiments, the feeding guide rod 50 includes an upper guide rod 51 and a lower guide rod 52. The upper guide rod 51 and the lower guide rod 52 are respectively connected to the mounting frame 10. The guide rods 51 and 52 penetrate through the squeegee 30, and the squeegee 30 is slidably matched with the upper guide rod 51 and the lower guide rod 52. Through the above arrangement, while realizing the sliding connection between the squeegee 30 and the mounting frame 10, the upper guide rod 51 and the lower guide rod 52 can prevent the squeegee 30 from rotating, so that the squeegee 30 can only move along the length directions of the upper guide rod 51 and the lower guide rod 52, and the squeegee 30 can always scrape the surfaces of the upper pressing roller 21 and the lower pressing roller 22 at a certain angle. In addition, the upper guide rod 51 and the lower guide rod 52 can play a protective role, and can prevent people's hands from accidentally reaching directly between the upper pressing roller 21 and the lower pressing roller 22 and causing pinching injuries.

[0064] In the specific implementation process, the length directions of the upper guide rod 51 and the lower guide rod 52 are parallel to the axial direction of the lower pressing roller 22.

[0065] In some embodiments, the material extrusion device 1000 further includes a discharge guide rod 60. The discharge guide rod 60 is disposed on the discharge side 202 of the pressure roller assembly 20 and is used to guide the packaging bag to discharge from the discharge side 202 of the pressure roller assembly 20. When the packaging bag extends from the discharge side 202 of the pressure roller assembly 20, the packaging bag can be placed on the discharge guide rod 60, and the discharge guide rod 60 supports the packaging bag, so that the bag opening of the packaging bag can move along the direction away from the pressure roller assembly 20 on the discharge guide rod 60, preventing the packaging bags from accumulating under the pressure roller assembly 20 and affecting the collection of the residual glue.

[0066] Wherein, the discharge guide rod 60 can be rotatably connected to the mounting frame 10, and the discharge guide rod 60 can rotate relative to the mounting frame 10 around its own axis to reduce the friction force of the packaging bag on the discharge guide rod 60, making it easy for the packaging bag to pass over the discharge guide rod 60.

[0067] In the specific implementation process, the length direction of the discharge guide rod 60 is parallel to the axial direction of the lower pressure roller 22.

[0068] Please refer to Figure 4 In some embodiments, the first driving assembly 40 includes a first motor 41, a first transmission mechanism 42 and a second transmission mechanism 43. The first transmission mechanism 42 is connected to the first motor 41 and the pressure roller assembly 20, and the first transmission mechanism 42 is used to transmit motion between the first motor 41 and the pressure roller assembly 20. The first motor 41 can drive the upper pressure roller 21 and the lower pressure roller 22 to rotate through the first transmission mechanism 42, so that when the upper pressure roller 21 and the lower pressure roller 22 rotate, they can drive the packaging bag to move from the feeding side 201 to the discharge side 202; the second transmission mechanism 43 is connected to the first motor 41 and the discharge guide rod 60, and the second transmission mechanism 43 is used to transmit motion between the first motor 41 and the discharge guide rod 60. The first motor 41 can drive the discharge guide rod 60 to rotate through the second transmission mechanism 43, so that the discharge guide rod 60 can drive the bag opening of the packaging bag to move away from the pressure roller assembly 20. In this embodiment, by setting the first transmission mechanism 42 and the second transmission mechanism 43, the same motor can drive the upper pressure roller 21, the lower pressure roller 22 and the discharge guide rod 60 to rotate simultaneously, reducing the number of motors used.

[0069] In some embodiments, the first transmission mechanism 42 includes a speed reducer 421, a first gear 422, a second gear 423, a first chain 424, a third gear 425, and a fourth gear 426. The output end of the first motor 41 is connected to the input end of the speed reducer 421, the output end of the speed reducer 421 is connected to the first gear 422, the second gear 423 is connected to the end of the lower pressing roller 22, and the first gear 422 and the second gear 423 are located on the same side of the pressing roller assembly 20. The first chain 424 is wound between the first gear 422 and the second gear 423. The third gear 425 is connected to the end of the lower pressing roller 22, the fourth gear 426 is connected to the end of the upper pressing roller 21, and the third gear 425 and the fourth gear 426 are located on the same side of the pressing roller assembly 20. The third gear 425 and the fourth gear 426 are meshed with each other.

[0070] The second transmission mechanism 43 includes a fifth gear 431, a sixth gear 432, and a second chain 433. The fifth gear 431 is connected to the end of the lower pressing roller 22, the sixth gear 432 is connected to the end of the discharge guide rod 60, and the fifth gear 431 and the sixth gear 432 are located on the same side of the pressing roller assembly 20. The second chain 433 is wound between the fifth gear 431 and the sixth gear 432.

[0071] When the first motor 41 is started, the output end of the first motor 41 can drive the lower pressing roller 22 to rotate in the first direction through the speed reducer 421, the first gear 422, the second gear 423, and the first chain 424. The lower pressing roller 22 drives the third gear 425 to drive the fourth gear 426 to drive the upper pressing roller 21 to rotate in the second direction. At the same time, the lower pressing roller 22 also drives the discharge guide rod 60 to rotate in the first direction through the fifth gear 431, the sixth gear 432, and the second chain 433. In this way, the first motor 41 simultaneously drives the upper pressing roller 21, the lower pressing roller 22, and the discharge guide rod 60 to rotate. Herein, the first direction and the second direction are opposite to each other.

[0072] Among them, the third gear 425 and the fourth gear 426 adopt the same gear structure to achieve the same-speed and reverse rotation of the upper pressing roller 21 and the lower pressing roller 22; the fifth gear 431 and the sixth gear 432 adopt the same gear structure to achieve the same-speed and same-direction rotation between the lower pressing roller 22 and the discharge guide rod 60.

[0073] In some other embodiments, the motion transmission between the first motor 41 and the lower pressing roller 22 can also be realized through other structures. For example, the output shaft of the first motor 41 is connected to the end of the lower pressing roller 22 through a coupling; the motion transmission between the lower pressing roller 22 and the discharge guide rod 60 can also be realized through other structures. For example, a first pulley is sleeved on the end of the lower pressing roller 22, a second pulley is sleeved on the end of the discharge guide rod 60, and a belt is wound between the first pulley and the second pulley.

[0074] In some other embodiments, the second transmission mechanism 43 can be omitted, and the first drive assembly 40 is only used to drive the upper pressing roller 21 and the lower pressing roller 22 to rotate in opposite directions.

[0075] As Figure 1 and Figure 2 shown, in some embodiments, the material extrusion device 1000 further includes a protective cover 70. The protective cover 70 is installed on the mounting frame 10 and covers the first transmission mechanism 42 and the second transmission mechanism 43 to prevent the first transmission mechanism 42 and the second transmission mechanism 43 from being exposed outside and causing accidental injury to personnel.

[0076] As Figure 4 shown, in some embodiments, the material extrusion device 1000 further includes a second drive assembly 80. The second drive assembly 80 is used to drive the upper pressing roller 21 and the lower pressing roller 22 to move away from or close to each other. During use, the second drive assembly 80 can be used to drive the upper pressing roller 21 and the lower pressing roller 22 to move away from each other, so that the upper pressing roller 21 and the lower pressing roller 22 are in an open state, thereby allowing the bag mouth of the packaging bag to be placed between the upper pressing roller 21 and the lower pressing roller 22. Then, the second drive assembly 80 is used to drive the upper pressing roller 21 and the lower pressing roller 22 to move close to each other. When the upper pressing roller 21 and the lower pressing roller 22 are in a closed state, the bag mouth of the packaging bag is tightly pressed.

[0077] In some embodiments, the upper pressing roller 21 is slidably connected to the mounting frame 10 along its own radial direction; the second drive assembly 80 includes a first air cylinder 81 and a second air cylinder 82. The first air cylinder 81 and the second air cylinder 82 are respectively installed on the mounting frame 10, and the output ends of the first air cylinder 81 and the second air cylinder 82 are respectively connected to both ends of the upper pressing roller 21. The first air cylinder 81 and the second air cylinder 82 can drive the upper pressing roller 21 to move toward or away from the lower pressing roller 22 along its own radial direction, so as to adjust the distance between the upper pressing roller 21 and the lower pressing roller 22. When extruding the packaging bag, the first air cylinder 81 and the second air cylinder 82 can be used to drive the upper pressing roller 21 to press against the lower pressing roller 22 to tightly press the packaging bag.

[0078] Wherein, a third gear 425 provided at the end of the upper pressing roller 21 also moves toward or away from a fourth gear 426 at the end of the lower pressing roller 22 as the upper pressing roller 21 moves. When the upper pressing roller 21 presses against the lower pressing roller 22, the third gear 425 and the fourth gear 426 are engaged with each other to realize the transmission between the upper pressing roller 21 and the lower pressing roller 22.

[0079] In some embodiments, the second driving assembly 80 can also be used to drive the lower pressing roller 22 to move towards or away from the upper pressing roller 21 along its own radial direction. The lower pressing roller 22 is slidably connected to the mounting frame 10 along its own radial direction. The second driving assembly 80 includes a third air cylinder and a fourth air cylinder. The third air cylinder and the fourth air cylinder are respectively mounted on the mounting frame 10, and the output ends of the third air cylinder and the fourth air cylinder are respectively connected to both ends of the lower pressing roller 22. The third air cylinder and the fourth air cylinder can drive the lower pressing roller 22 to move towards or away from the upper pressing roller 21 along its own radial direction, so as to adjust the distance between the upper pressing roller 21 and the lower pressing roller 22. When extruding the packaging bag, the third air cylinder and the fourth air cylinder can be used to drive the lower pressing roller 22 to abut against the upper pressing roller 21 to compress the packaging bag.

[0080] Wherein, the feeding guide rod 50 is slidably matched with the mounting frame 10, and both ends of the feeding guide rod 50 are also respectively connected to the output ends of the third air cylinder and the fourth air cylinder. While the third air cylinder and the fourth air cylinder drive the lower pressing roller 22 to move towards or away from the upper pressing roller 21 along its own radial direction, the feeding guide rod 50 also drives the scraping plate 30 to move along with the lower pressing roller 22.

[0081] After the material extruding device 1000 is used multiple times, some residual glue is likely to accumulate at the material extruding position of the material extruding device 1000 on the mounting frame 10. To facilitate the cleaning of the material extruding position on the mounting frame 10, in some embodiments, the mounting frame 10 includes a bracket 11 and a support seat 12. The bracket 11 is slidably connected to the support seat 12, and the pressing roller assembly 20, the scraping plate 30 and the first driving assembly 40 are connected to the bracket 11. The bracket 11 can drive the structures mounted thereon to slide relative to the support seat 12, so that the bracket 11 and the structures mounted on the bracket 11 vacate the material extruding position, thereby facilitating the worker to clean the material extruding device 1000.

[0082] Specifically, the above-mentioned pressing roller assembly 20, scraping plate 30, first driving assembly 40, feeding guide rod 50, discharging guide rod 60, protective cover 70 and second driving assembly 80 are all mounted on the bracket 11. The bracket 11 can drive the pressing roller assembly 20, scraping plate 30, first driving assembly 40, feeding guide rod 50, discharging guide rod 60 and second driving assembly 80 to slide relative to the support seat 12.

[0083] The number of brackets 11 is two, and the two brackets 11 are arranged at intervals on the support seat 12. Both ends of the upper pressing roller 21 and the lower pressing roller 22 are rotatably arranged on the two brackets 11 respectively. The two brackets 11 are both provided with guide grooves, and both ends of the upper pressing roller 21 are respectively slidably connected to the guide grooves of the two brackets 11. The upper pressing roller 21 can slide along the guide grooves to move towards or away from the lower pressing roller 22.

[0084] Please refer to Figure 5, in some embodiments, the material extrusion device 1000 further includes a sliding assembly 90, and the sliding assembly 90 includes a slide rail 91 and a slider 92. The slide rail 91 is installed on the support base 12, the slider 92 is slidably connected to the slide rail 91, and the bracket 11 is installed on the slide rail 91. By pushing or pulling the bracket 11, the bracket 11 can drive the slider 92 to slide along the length direction of the slide rail 91, so that the bracket 11 and the structures installed on the bracket 11 make way for the material extrusion position.

[0085] In some embodiments, the sliding assembly 90 further includes a pin 93. A plurality of jacks 9101 are provided on the slide rail 91, and the plurality of jacks 9101 are arranged at intervals along the length direction of the slide rail 91. The pin 93 is used to be inserted into the jack 9101 to limit the movement of the bracket 11 relative to the support base 12, so that the bracket 11 is fixed at the same position on the support base 12. When it is necessary to move the bracket 11, the pin 93 in the jack 9101 can be pulled out to release the restriction on the bracket 11.

[0086] Please refer back Figure 1 and Figure 2 , in some embodiments, the upper surface of the support base 12 is provided with a first opening 1201 and a second opening 1202. The first opening 1201 is located below the roller assembly 20, and the second opening 1202 is located on the discharge side 202 of the roller assembly 20. Moreover, the second opening 1202 is farther from the roller assembly 20 than the first opening 1201. The first opening 1201 is used to allow the residual glue extruded by the roller assembly 20 to flow through for collecting the residual glue, and the second opening 1202 is used to allow the packaging bag passing through the discharge side 202 of the roller assembly 20 to enter for collecting the bag body of the extruded packaging bag.

[0087] In some embodiments, the material extrusion device 1000 further includes a first storage member 100 and a second storage member 110. The first storage member 100 is located below the roller assembly 20, and the second storage member 110 is located below the discharge side 202 of the roller assembly 20. The first storage member 100 is used to collect the material (residual glue) extruded from the packaging bag, and the second storage member 110 is used to collect the bag body of the packaging bag passing through the discharge side 202 of the roller assembly 20. By providing the first storage member 100 and the second storage member 110, it is convenient to collect the residual glue and the bag body of the packaging bag respectively during multiple uses of the material extrusion device 1000.

[0088] Specifically, the first storage member 100 is placed directly below the first opening 1201, and the second storage member 110 is placed directly below the second opening 1202.

[0089] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art. In addition, the embodiments of the present utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. Extrusion device, characterized in that: include: Mounting bracket: A pressing roller assembly, comprising an upper pressing roller and a lower pressing roller, wherein the upper pressing roller and the lower pressing roller are respectively rotatably connected to the mounting frame, and the upper pressing roller and the lower pressing roller are used for pressing the packaging bag; a scraper, located on one side of the radial direction of the lower pressing roller, the scraper being configured to be movably connected to the mounting frame along the axial direction of the lower pressing roller, and being adapted to at least scrape the surface of the lower pressing roller during movement; The first driving assembly is connected to the pressure roller assembly, and the first driving assembly is used to drive the upper pressure roller and the lower pressure roller to rotate in opposite directions.

2. The extrusion device according to claim 1, characterized in that: The scrapers are respectively arranged at both ends of the lower pressure roller.

3. The extrusion device according to claim 1, characterized in that: The scraper is provided with a first scraping edge and a second scraping edge, the first scraping edge and the second scraping edge are respectively arranged along the outer circumference of the upper pressure roller and the lower pressure roller, the first scraping edge is used for scraping the upper pressure roller, and the second scraping edge is used for scraping the lower pressure roller.

4. The extrusion device according to claim 1, characterized in that: It also includes a feed guide rod, which is located on the feed side of the pressure roller assembly, connected to the mounting frame, and used to guide the packaging bag from the feed side of the pressure roller assembly into between the upper pressure roller and the lower pressure roller.

5. The extrusion device according to claim 4, characterized in that: The feed guide rod comprises an upper guide rod and a lower guide rod, the upper guide rod and the lower guide rod are respectively connected to the mounting frame, the upper guide rod and the lower guide rod penetrate the scraper, and the scraper is slidably matched with the upper guide rod and the lower guide rod.

6. The extrusion device according to claim 1, characterized in that: It also includes a discharging guide rod, which is arranged on the discharging side of the pressing roller assembly and is used to guide the packaging bag to be discharged from the discharging side of the pressing roller assembly.

7. The extrusion device according to claim 6, characterized in that: The first drive assembly includes a first motor, a first transmission mechanism and a second transmission mechanism; The first transmission mechanism is connected to the first motor and the pressure roller assembly, and the first motor drives the upper pressure roller and the lower pressure roller to rotate in opposite directions through the first transmission mechanism; The second transmission mechanism is connected to the first motor and the discharge guide rod, and the first motor drives the discharge guide rod and the lower pressure roller to rotate in the same direction through the second transmission mechanism.

8. The extrusion device according to claim 1, characterized in that: It also includes a second driving assembly, which is used to drive the two upper pressing rollers and the lower pressing roller to move closer to each other or away from each other.

9. The extrusion device according to claim 1, characterized in that: The mounting frame includes a bracket and a support seat, the bracket is slidably connected to the support seat, and the pressure roller assembly, the scraper and the first driving assembly are connected to the bracket.

10. The extrusion device according to claim 1, characterized in that: It also includes a first receiving piece and a second receiving piece, wherein the first receiving piece is located below the pressure roller assembly, and the second receiving piece is located below the discharge side of the pressure roller assembly, the first receiving piece is used to collect the material squeezed out of the packaging bag, and the second receiving piece is used to collect the bag body of the packaging bag passing through the discharge side of the pressure roller assembly.

Images