Extrusion shaping mechanism for packaging bag and bagging machine

Abstract

The invention discloses an extruding and shaping mechanism for a packaging bag and a bagging machine. The extruding and shaping mechanism comprises a fixing seat and a plurality of extruding and shaping assemblies, the extruding and shaping assemblies are installed on the fixing seat, and the extruding and shaping assemblies are matched with one another to conduct extruding and shaping on the packaging bag. Therefore, the function of the bagging machine is perfected.

Description

Technical Field

[0001] The present application relates to the field of bagging machines, and more specifically, to an extrusion and shaping mechanism for packaging bags and a bagging machine. Background Art

[0002] On the market, small packages (such as packages with specifications of 2.5 kg / 5 kg / 10 kg, etc.) are manually carried and shipped out of the factory on pallets. However, when distributors or supermarkets load and unload into the factory or warehouse, they need to carry them one small bag at a time manually. Later, for convenience and time-saving, workers will first load the small packages into large packaging bags and then carry them.

[0003] With the development of automation technology, bagging machines have emerged. However, the functions of existing bagging machines are not perfect enough, and there are phenomena such as loose large packaging bags after packaging and skewed and unstable small packaging bags inside the large packaging bags, which will also lead to problems such as non-square and various shapes in later palletizing and affect the aesthetics.

[0004] Therefore, how to improve the functions of bagging machines has become a technical problem to be solved in this field. Summary of the Invention

[0005] In view of this, the present application provides an extrusion and shaping mechanism for packaging bags and a bagging machine to improve the functions of the bagging machine.

[0006] In a first aspect, an embodiment of the present application provides an extrusion and shaping mechanism for packaging bags, and the extrusion and shaping mechanism includes: a fixed seat, and a plurality of extrusion and shaping components installed on the fixed seat, and the plurality of extrusion and shaping components cooperate with each other to extrude and shape the packaging bag.

[0007] Optionally, the plurality of extrusion and shaping components cooperate with each other to control the falling of the packaging bag and extrude and shape it during the falling process of the packaging bag.

[0008] Optionally, the plurality of extrusion and shaping components are dispersedly arranged to define a space for accommodating the packaging bag, and the distance from the center of gravity of each extrusion and shaping component to the center of the space is equal. Wherein, for the space, along the vertical falling direction of the packaging bag, from the packaging bag inlet to the packaging bag outlet, the cross-sectional area perpendicular to the vertical falling direction becomes smaller and smaller.

[0009] Optionally, the extrusion and shaping component includes: a bracket installed on the fixed seat; a packaging bag moving part installed on the bracket, the packaging bag moving part is used to control the falling of the packaging bag, and the transportation surface of the packaging bag moving part carrying the packaging bag forms a preset angle with the vertical falling direction, where the preset angle is greater than 0; and an extrusion driving part installed on the bracket, the extrusion driving part is used to drive the packaging bag moving part.

[0010] Optionally, the extrusion and shaping assembly further includes: a guide plate mounted on the bracket, and the guide plate is used to guide the packaging bag above the space.

[0011] Optionally, the packaging bag moving member includes: an extrusion driving synchronous pulley mounted on the bracket and close to the packaging bag outlet; an extrusion driven synchronous pulley mounted on the bracket and close to the packaging bag inlet; an extrusion synchronous belt connecting the extrusion driving synchronous pulley and the extrusion driven synchronous pulley, and the extrusion synchronous belt is used to carry the packaging bag and the transport surface for carrying the packaging bag forms a preset angle with the vertical falling direction; and a synchronous belt support plate mounted on the bracket and located inside the inner circle of the extrusion synchronous belt.

[0012] Optionally, the extrusion driving member includes: a motor; and a first long shaft mounted on the bracket, and the motor drives the packaging bag moving member through the first long shaft.

[0013] Optionally, the extrusion driving member further includes: a speed reducer connected between the motor and the first long shaft.

[0014] Optionally, the extrusion and shaping assembly includes: an angle control member mounted on the bracket, and the angle control member is used to support the packaging bag before the packaging bag moving member controls the falling of the packaging bag to control the angle of the packaging bag with the vertical falling direction.

[0015] Optionally, the angle control member includes: a base mounted on the bracket; a cylinder mounted on the base; an arc-shaped swing rod mounted on the base, the mounting position of the cylinder on the base and the mounting position of the arc-shaped swing rod on the base are located at both ends of the base, one end of the arc-shaped swing rod is connected to the cylinder, and the other end of the arc-shaped swing rod extends into the space to support the packaging bag when the telescopic rod of the cylinder extends.

[0016] Optionally, the plurality of extrusion and shaping assemblies include four extrusion and shaping assemblies.

[0017] Optionally, the extrusion and shaping mechanism further includes: a size adjustment assembly mounted on the fixed seat, and the plurality of extrusion and shaping assemblies are mounted on the size adjustment assembly, and the size adjustment assembly is used to move the plurality of extrusion and shaping assemblies to adjust the size of the packaging bag after being extruded and shaped.

[0018] Optionally, the sizing component includes: a plurality of sliders, each of the sliders being mounted on the fixed seat; a plurality of gearboxes, each of the extrusion and shaping components being connected to one of the gearboxes; a plurality of slide rails, each of the extrusion and shaping components being connected to one of the slide rails, and each of the slide rails being matched with one of the sliders; and a gearbox driving member for synchronously driving the plurality of gearboxes, and based on the relative movement between the slide rails and the sliders, causing each gearbox to drive the extrusion and shaping component connected thereto to move, so as to simultaneously move the plurality of extrusion and shaping components.

[0019] Optionally, the gearbox driving member is a hand-cranked pulley assembly.

[0020] In a second aspect, an embodiment of the present application further provides a bagging machine, which includes: the above-mentioned extrusion and shaping mechanism.

[0021] According to the technical solution of the present application, a plurality of extrusion and shaping components cooperate with each other to extrude and shape the packaging bags, so that the spaces occupied by all the packaging bags to be packed are not very different and match the size of the inlet of the large packaging bag for packaging all the packaging bags. Thus, the phenomenon that the packaged large packaging bag is loose can be avoided, and the problem that the shapes are various and affect the appearance during later palletizing can be solved. In this way, the function of the bagging machine is improved.

[0022] Other features and advantages of the present application will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings forming a part of this application are used to provide a further understanding of the present application, and the schematic embodiments and descriptions thereof are used to explain the present application. In the drawings:

[0024] Figure 1 is the front view of the extrusion and shaping mechanism according to the preferred embodiment of the present application;

[0025] Figure 2 is the top view of the extrusion and shaping mechanism according to the preferred embodiment of the present application;

[0026] Figure 3 is the bottom view of the extrusion and shaping mechanism according to the preferred embodiment of the present application;

[0027] Figure 4 is Figure 2 the sectional view taken along the line A-A shown;

[0028] Figure 5 is Figure 2 the sectional view taken along the line B-B shown;

[0029] Figure 6 is the axonometric view of the extrusion and shaping mechanism according to the preferred embodiment of the present application;

[0030] Figure 7 Is an axonometric view of the extrusion and shaping mechanism according to the preferred embodiment of the present application;

[0031] Figure 8 Is an axonometric view of the fixed seat according to the preferred embodiment of the present application;

[0032] Figure 9 Is the front view of the gearbox according to the preferred embodiment of the present application;

[0033] Figure 10 Is Figure 9 The cross-sectional view of the D-D plane shown;

[0034] Figure 11 Is an axonometric view of the gearbox according to the preferred embodiment of the present application;

[0035] Figure 12 Is the front view of the extrusion and shaping component according to the preferred embodiment of the present application;

[0036] Figure 13 Is the top view of the extrusion and shaping component according to the preferred embodiment of the present application;

[0037] Figure 14 Is the left view of the extrusion and shaping component according to the preferred embodiment of the present application;

[0038] Figure 15 Is Figure 14 The cross-sectional view of the C-C plane shown;

[0039] Figure 16 Is an axonometric view of the first extrusion and shaping component according to the preferred embodiment of the present application;

[0040] Figure 17 Is an axonometric view of the first extrusion and shaping component according to the preferred embodiment of the present application;

[0041] Figure 18 Is the front view of the bracket of the first extrusion and shaping component according to the preferred embodiment of the present application;

[0042] Figure 19 Is the right view of the bracket of the first extrusion and shaping component according to the preferred embodiment of the present application;

[0043] Figure 20 Is an axonometric view of the bracket of the first extrusion and shaping component according to the preferred embodiment of the present application;

[0044] Figure 21 Is an axonometric view of the guide plate of the first extrusion and shaping component according to the preferred embodiment of the present application;

[0045] Figure 22Isometric view of the guide plate of the first extrusion shaping component according to the preferred embodiment of the present application;

[0046] Figure 23 Front view of the angle control component of the first extrusion shaping component according to the preferred embodiment of the present application;

[0047] Figure 24 Isometric view of the angle control component of the first extrusion shaping component according to the preferred embodiment of the present application;

[0048] Figure 25 Isometric view of the second extrusion shaping component according to the preferred embodiment of the present application;

[0049] Figure 26 Exploded view of the second extrusion shaping component according to the preferred embodiment of the present application;

[0050] Figure 27 Front view of the bracket of the second extrusion shaping component according to the preferred embodiment of the present application;

[0051] Figure 28 Left view of the bracket of the second extrusion shaping component according to the preferred embodiment of the present application;

[0052] Figure 29 Isometric view of the bracket of the second extrusion shaping component according to the preferred embodiment of the present application;

[0053] Figure 30 Isometric view of the guide plate of the second extrusion shaping component according to the preferred embodiment of the present application;

[0054] Figure 31 Isometric view of the angle control component of the second extrusion shaping component according to the preferred embodiment of the present application;

[0055] Figure 32 Isometric view of the hand crank pulley assembly according to the preferred embodiment of the present application;

[0056] Figure 33 Is Figure 32 Cross-sectional view of the hand crank pulley assembly shown in; and

[0057] Figure 34 Is Figure 6 Schematic diagram of the working process of the extrusion shaping mechanism shown in. Specific embodiments

[0058] The technical solutions of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0059] In a first aspect, an embodiment of the present application provides an extrusion shaping mechanism. The extrusion shaping mechanism includes: a fixed seat 10 and a plurality of extrusion and shaping components 30. Among them, the plurality of extrusion and shaping components 30 cooperate with each other to extrude and shape the packaging bag. In the embodiment of the present application, the size of the packaging bag after extrusion and shaping can be determined according to the size of the large packaging bag used to package all the packaging bags to be packed. The size of the packaging bag after extrusion and shaping exactly matches the size of the entrance of the large packaging bag. In this way, there will be no loose phenomenon after the large package is loaded into the small packaging bag. It should be noted that the size of the packaging bag after extrusion and shaping exactly matching the size of the entrance of the large packaging bag can be understood as that the packaging bag after extrusion and shaping can be loaded into the large packaging bag, and there will be no particularly large gap between the loaded packaging bag and the large packaging bag.

[0060] Optionally, in the embodiment of the present application, the fixed seat 10 defines a central space, and a plurality of extrusion and shaping components 30 are dispersedly installed in the central space. Among them, the number and the dispersedly installed positions of the plurality of extrusion and shaping components 30 can be determined according to the shape of the packaging bag to be packed and extruded and shaped, in other words, according to the shape of the entrance of the large packaging bag used for packaging. As Figure 2 shown, it includes four extrusion and shaping components 30, and the fixed seat 10 includes a fixing plate 101. As Figure 2 or Figure 8 shown, the fixing plate 101 defines a central space, and the four extrusion and shaping components 30 are dispersedly installed on the fixing plate 101. In addition, an installation surface 103 for the bracket 301 of the extrusion and shaping component 30 is further provided on the fixing plate 101, wherein the size of the installation surface 103 is determined based on the size of the bracket 301. For example, the size of the installation surface 103 is determined based on the size of the third sub-bracket 3013 of the bracket 301. In addition, in the embodiment of the present application, the number of the provided installation surfaces 103 is determined based on the number of the extrusion and shaping components 30 to be installed.

[0061] Optionally, in the embodiment of the present application, the fixed seat 10 may further include a reinforcing plate 102. As Figure 8 shown, reinforcing plates 102 are respectively welded to the outer sides of the opposite ends of the fixing plate 101 to form the fixed seat 10. It should be noted that as long as it is the outer sides of the opposite ends of the fixing plate 101, for the fixing plate 101 as Figure 8 shown, reinforcing plates 102 can also be respectively welded to the outer sides of the other opposite ends.

[0062] Optionally, in the embodiments of the present application, the extrusion and shaping assembly 30 can be slidably mounted on the fixed seat 10, and multiple extrusion and shaping assemblies 30 move simultaneously to extrude and shape the packaging bag. Alternatively, the extrusion and shaping assembly 30 is fixedly mounted on the fixed seat 10, and the extrusion and shaping assembly 30 can control the falling of the packaging bag and, during the falling process of the packaging bag, multiple extrusion and shaping assemblies 30 cooperate to extrude and shape the packaging bag.

[0063] Optionally, in the embodiments of the present application, multiple extrusion and shaping assemblies 30 cooperate with each other to control the falling of the packaging bag and extrude and shape it during the falling process of the packaging bag.

[0064] Optionally, in the embodiments of the present application, multiple extrusion and shaping assemblies 30 are dispersedly arranged to define a space for accommodating the packaging bag, and the distance from the center of gravity of each extrusion and shaping assembly to the center of the space is equal. Among them, for the space, along the vertical falling direction of the packaging bag, from the packaging bag inlet to the packaging bag outlet, the cross-sectional area perpendicular to the vertical falling direction becomes smaller and smaller. The vertical falling direction is the direction perpendicular to the ground. For example, as Figure 4 shown, for the space defined by multiple extrusion and shaping assemblies 30, the packaging bag inlet is a large opening, the packaging bag outlet is a small opening, and from the packaging bag inlet to the packaging bag outlet, the cross-section becomes smaller and smaller.

[0065] Optionally, in the embodiments of the present application, the extrusion and shaping assembly 30 can include a bracket 301, a packaging bag moving member 302, and an extrusion driving member 303.

[0066] The bracket 301 is mounted on the fixed seat 10. For example, it can be mounted on the fixed seat 10 by bolts. Specifically, the bracket 301 can be mounted on the fixing plate 101. Optionally, in the embodiments of the present application, the bracket 301 includes a first sub-bracket 3011, a second sub-bracket 3012, and a third sub-bracket 3013. The third sub-bracket 3013 is located between the first sub-bracket 3011 and the second sub-bracket 3012, and the first sub-bracket 3011 and the second sub-bracket 3012 can both be perpendicular to the third sub-bracket 3013, as Figure 18 , Figure 19 , Figure 27 , Figure 28 and Figure 29 shown. The first sub-bracket 3011, the second sub-bracket 3012, and the third sub-bracket 3013 can be assembled together by welding.

[0067] Optionally, in the embodiments of the present application, it can be the third sub-bracket 3013 that is mounted on the fixing plate 101. The packaging bag moving member 302 is mounted between the first sub-bracket 3011 and the second sub-bracket 3012.

[0068] The packaging bag moving component 302 is installed on the bracket 301. The packaging bag moving component 302 is used to move the packaging bag from the packaging bag inlet to the packaging bag outlet. The transport surface of the packaging bag moving component for carrying the packaging bag forms a preset angle with the vertical falling direction, where the preset angle is greater than 0. In other words, in the embodiment of the present application, the transport surface of the packaging bag moving component 302 is inclined, so as to realize that the space defined by the plurality of extrusion and shaping components 30 gradually decreases in the vertical falling direction. In addition, in the embodiment of the present application, the preset angle can be determined according to specific circumstances, and no limitation is imposed thereon.

[0069] The extrusion driving component 303 is installed on the bracket 301. The extrusion driving component 303 is used to drive the packaging bag moving component 302. Optionally, in the embodiment of the present application, the extrusion driving component 303 is installed on the side of the first sub-bracket 3011 away from the second sub-bracket 3012, or installed on the side of the second sub-bracket 3012 away from the first sub-bracket 3011. As Figure 3 shown, for the first extrusion and shaping component 30a, the extrusion driving component 303 is installed on the side of the second sub-bracket 3012 away from the first sub-bracket 3011; for the second extrusion and shaping component 30b, the extrusion driving component 303 is installed on the side of the first sub-bracket 3011 away from the second sub-bracket 3012.

[0070] Optionally, in the embodiment of the present application, the extrusion and shaping component 30 may further include a guide plate 304. The guide plate 304 is installed on the bracket 301. The guide plate 304 is used to guide the packaging bag above the space.

[0071] Optionally, in the embodiment of the present application, the guide plate 304 includes a first sub-guide plate 3041 and a second sub-guide plate 3042. The plane where the first sub-guide plate 3041 is located intersects with the plane where the second sub-guide plate 3042 is located. For example, as Figure 21 or Figure 22 shown, the plane where the first sub-guide plate 3041 is located intersects with the plane where the second sub-guide plate 3042 is located, and the angle is 90 degrees. The first sub-guide plate 3041 and the second sub-guide plate 3042 are combined by welding. After combination, there is a gap between the first sub-guide plate 3041 and the second sub-guide plate 3042 that can expose the transport surface of the packaging bag moving component 302 for carrying the packaging bag. For example, as Figure 21 and Figure 16 shown, the extrusion synchronous belt 3023 for carrying the packaging bag can be exposed between the first sub-guide plate 3041 and the second sub-guide plate 3042.

[0072] Optionally, in the embodiments of the present application, when the bracket 301 includes a first sub-bracket 3011, a second sub-bracket 3012, and a third sub-bracket 3013, it may be that the first sub-guide plate 3041 is installed on the first sub-bracket 3011 and the second sub-guide plate 3042 is installed on the second sub-bracket 3012, as shown in Figure 6 the second extrusion sizing assembly 30b shown in; or, it may also be that the first sub-guide plate 3041 is installed on the second sub-bracket 3012 and the second sub-guide plate 3042 is installed on the first sub-bracket 3011, as shown in Figure 6 the first extrusion sizing assembly 30a shown in.

[0073] Optionally, in the embodiments of the present application, the guide plate 304 further includes a third sub-guide plate 3043, a fourth sub-guide plate 3044, a fifth sub-guide plate 3045, and a sixth sub-guide plate 3046, as shown in Figure 21 shown. Among them, the third sub-guide plate 3043 is welded to the top of the first sub-guide plate 3041 and the third sub-guide plate 3043 turns outwards. The fourth sub-guide plate 3044 is welded to the top of the second sub-guide plate 3042 and the fourth sub-guide plate 3044 turns outwards. The fifth sub-guide plate 3045 is surface-welded to the third sub-guide plate 3043, and the sixth sub-guide plate 3046 is surface-welded to the fourth sub-guide plate 3044. The fifth sub-guide plate 3045 and the sixth sub-guide plate 3046 are welded together to connect the third sub-guide plate 3043 and the fourth sub-guide plate 3044.

[0074] Optionally, in the embodiments of the present application, the packaging bag moving member 302 may include an extrusion driving synchronous pulley 3021, an extrusion driven synchronous pulley 3022, an extrusion synchronous belt 3023, and a synchronous belt support plate 3024.

[0075] The extrusion driving synchronous pulley 3021 is installed on the bracket 301 and near the packaging bag outlet. As shown in Figure 4 or Figure 26 shown, the extrusion driving synchronous pulley 3021 is installed between the first sub-bracket 3011 and the second sub-bracket 3012 and at the bottom of the first sub-bracket 3011 and the second sub-bracket 3012.

[0076] The extrusion driven synchronous pulley 3022 is installed on the bracket 301 and near the packaging bag inlet. As shown in Figure 4 or Figure 26As shown, the extrusion driven synchronous pulley 3022 is installed between the first sub-bracket 3011 and the second sub-bracket 3012 and at the top of the first sub-bracket 3011 and the second sub-bracket 3012. Specifically, the outer circumferential surface of the extrusion driven synchronous pulley 3022 is connected to the extrusion synchronous belt 3023. Both ends of its inner hole are connected to the first shaft 3025 through installed bearings, and snap rings are installed at both ends of the first shaft 3025 to position the bearings. The extrusion driven synchronous pulley 3022 is installed on both side surfaces of the bracket 301 through bolt assemblies, that is, installed on the first sub-bracket 3011 and the second sub-bracket 3012. In addition, the tensioning plates 3026 installed on the first sub-bracket 3011 and the second sub-bracket 3012 are connected by screws to tension the extrusion synchronous belt 3023, as Figure 26 shown. As Figure 18 and Figure 19 or Figure 27 and Figure 28 shown, the first sub-bracket 3011 and the second sub-bracket 3012 are respectively welded with tensioning plates 3026, and are welded face to face and hole to hole flush at the top of the first sub-bracket 3011 and the second sub-bracket 3012.

[0077] It should be noted that in the embodiment of the present application, the top and bottom of a certain component are distinguished based on the vertical falling direction. Along the vertical falling direction, from top to bottom, in other words, the top is above and the bottom is below.

[0078] The extrusion synchronous belt 3023 connects the extrusion drive synchronous pulley 3021 and the extrusion driven synchronous pulley 3022. The extrusion synchronous belt 3023 is used to carry the packaging bag, and the transport surface for carrying the packaging bag forms a preset angle with the vertical falling direction. As Figure 4 or Figure 26 shown, the extrusion drive synchronous pulley 3021 is farther away from the third sub-bracket 3013 located between the first sub-bracket 3011 and the second sub-bracket 3012 than the extrusion driven synchronous pulley 3022, so that the extrusion synchronous belt 3023 is inclined, and the transport surface of the extrusion synchronous belt 3023 for carrying the packaging bag forms a preset angle greater than 0 with the vertical falling direction. Optionally, in the embodiment of the present application, the extrusion synchronous belt 3023 can be a grass pattern synchronous belt.

[0079] The synchronous belt support plate 3024 is installed on the bracket 301 and is located inside the inner circle of the extrusion synchronous belt 322. As Figure 4 or Figure 26 shown, the synchronous belt support plate 3024 is installed between the first sub-bracket 3011 and the second sub-bracket 3012. Specifically, it is installed on the first sub-bracket 3011 and the second sub-bracket 3012 through connecting screws. The synchronous belt support plate 3024 is used to support the extrusion synchronous belt 3023.

[0080] Optionally, in the embodiments of the present application, the extrusion driving component 303 may include a motor 3031 and a first long shaft 3032. The function of the first long shaft 3032 is to reduce the shaft-end load of the motor 3031 and protect the motor 3031. The first long shaft 3032 is installed on the bracket 301, and the motor 313 drives the packaging bag moving component 302 through the first long shaft 3032.

[0081] Optionally, in the embodiments of the present application, the extrusion driving component 303 may further include a speed reducer 3033. The speed reducer 3033 is connected between the motor 3031 and the first long shaft 3032. In the embodiments of the present application, the speed reducer 3033 and the first long shaft 3032 are installed on different sides of the bracket 301.

[0082] Optionally, in the embodiments of the present application, the speed reducer 3033 may be a first speed reducer 3033a or a second speed reducer 3033b. The first speed reducer 3033a can achieve power turning to prevent interference. The second speed reducer 3033b realizes direct power connection. For example, as Figure 3 shown in the first extrusion shaping assembly 30a, the first speed reducer 3033a is used; as Figure 3 shown in the second extrusion shaping assembly 30b, the second speed reducer 3033b is used.

[0083] As Figure 14 and 15 shown, for the first extrusion shaping assembly 30a, the motor 3031 is connected to the first speed reducer 3033a. The shaft end of the first speed reducer 3033a is fixed on the side of the bracket 301 through a first washer 3034, that is, fixed on the second sub-bracket 3012. The shaft of the first speed reducer 3033a is connected to the first long shaft 3032 by screws. The first long shaft 3032 is installed with an extrusion driving synchronous pulley 3021 connected to the extrusion synchronous belt 322 and is installed on the other side of the bracket 301 through a connecting bearing (installed on the first bearing seat 3036) and a second washer 3035, that is, installed on the first sub-bracket 3011.

[0084] As Figure 26 shown, the motor 3031 is connected to the second speed reducer 3033b. The shaft end of the second speed reducer 3033b is fixed on the side of the bracket 301 through a first washer 3034, that is, fixed on the first sub-bracket 3011. The shaft of the second speed reducer 3033b is connected to the first long shaft 3032 by screws. The first long shaft 3032 is installed with an extrusion driving synchronous pulley 3021 connected to the extrusion synchronous belt 322 and is installed on the other side of the bracket 301 through a connecting bearing (installed on the first bearing seat 3036) and a second washer 3035, that is, installed on the second sub-bracket 3012.

[0085] The first bearing block 3036 is plug welded to the bracket 301. For example, the first bearing block 3036 can be plug welded to the second sub-bracket 3012, as Figure 26 shown; or, the first bearing block 3036 can be plug welded to the first sub-bracket 3011, as Figure 15 shown.

[0086] Optionally, in the embodiment of the present application, the extrusion and shaping assembly 30 may further include an angle control member 305. The angle control member 305 is installed on the bracket 301. The angle control member 305 is used to support the packaging bag before the packaging bag moving member 302 controls the falling of the packaging bag, so as to control the angle between the packaging bag and the vertical falling direction. The angle control members 305 of multiple extrusion and shaping assemblies 30 support the packaging bag at the same time, making the packaging bag as balanced as possible and making the packaging bag fall horizontally as much as possible before controlling the falling of the packaging bag, thereby solving the problem of skewness and instability of the small packaging bags inside the large packaging bag.

[0087] In the embodiment of the present application, the support point of the angle control member 305 for supporting the packaging bag is higher than the top height of the packaging bag moving member 302.

[0088] Optionally, in the embodiment of the present application, the angle control member 305 may include a base 3051, a cylinder 3052, and an arc-shaped swing rod 3053.

[0089] The base 3051 is installed on the bracket 301. The base 3051 is a component for connecting the angle control member 305 and the bracket 301. The base 3051 can be installed on the first sub-bracket 3011 or the second sub-bracket 3012. Optionally, in the embodiment of the present application, on the basis of having the guide plate 304, the base 3051 is installed on the guide plate 304. Specifically, the base 3051 can be installed on the first sub-guide plate 3041, as Figure 16 or Figure 25 shown, and the base 3051 is installed outside the space for accommodating the packaging bag. In addition, as Figure 16 shown, for the first extrusion and shaping assembly 30a, the angle control member 305 is located on the side of the second sub-bracket 3012 and is closer to the second sub-bracket 3012 than the first sub-bracket 3011. As Figure 25 shown, for the second extrusion and shaping assembly 30b, the angle control member 305 is located on the side of the first sub-bracket 3011 and is closer to the first sub-bracket 3011 than the second sub-bracket 3012.

[0090] The cylinder 3052 is installed on the base 3051 and is connected to the arc-shaped swing rod 3053. For example, as Figure 16As shown, one end of the air cylinder 3052 is mounted on the base 3051 and at the bottom of the base 3051, and the other end of the air cylinder 3052 is connected to the arc-shaped swing rod 3053.

[0091] The arc-shaped swing rod 3053 is mounted on the base 3051. The mounting position of the air cylinder 3052 on the base 3051 and the mounting position of the arc-shaped swing rod 3053 on the base 3051 are at both ends of the base 3051. For example, as Figure 16 shown, the arc-shaped swing rod 3053 is mounted on the top of the base 3051. One end of the arc-shaped swing rod 3053 is connected to the air cylinder 3052, and the other end of the arc-shaped swing rod 3053 extends into the space for accommodating the packaging bag to support the packaging bag when the telescopic rod of the air cylinder 3052 extends, as Figure 16 shown. Specifically, the arc-shaped swing rod 3053 extends through the first sub-guide plate 3041 into the space. Specifically, as Figure 16 shown, the guide rod of the air cylinder 3052 is connected to one end of the arc-shaped swing rod 3053 through a Y joint, and the middle of the arc-shaped swing rod 3053 is connected to the base 3051 through the second shaft 3054, so that the arc-shaped swing rod 3053 rotates around the second shaft 3054 with the telescopic movement of the telescopic rod of the air cylinder 3052, and the tail of the air cylinder 3052 is connected to the base 3051 through the third shaft 3055.

[0092] Optionally, in the embodiment of the present application, the height of the arc-shaped swing rod 3053 is higher than that of the extrusion driven synchronous pulley 3022.

[0093] Optionally, in the embodiment of the present application, the plurality of extrusion and shaping assemblies 30 include four extrusion and shaping assemblies 30. As Figure 2 shown, it includes four extrusion and shaping assemblies, two first extrusion and shaping assemblies 30a and two second extrusion and shaping assemblies 30b.

[0094] Optionally, in the embodiment of the present application, the extrusion and shaping mechanism further includes a size adjustment assembly 20. The size adjustment assembly 20 is mounted on the fixed seat 10, and the plurality of extrusion and shaping assemblies 30 are mounted on the size adjustment assembly 20. The size adjustment assembly 20 is used to move the plurality of extrusion and shaping assemblies 30 to adjust the size of the packaging bag after being extruded and shaped.

[0095] Optionally, in the embodiment of the present application, the size adjustment assembly 20 may include a plurality of sliders 201, a plurality of gear boxes 202, a plurality of slide rails 203 and a gear box driving component 204.

[0096] Each slider 201 is mounted on the fixed seat 10, as Figure 5 shown.

[0097] Each extrusion and shaping assembly 30 is connected to a gear box 202, as Figure 2 shown. As Figure 9Or Figure 10 As shown in the figure, the gearbox 202 includes a box body 2020, a driving helical gear 2021, a fourth shaft 2022, a third washer 2023, a second bearing seat 2024, a gearbox synchronous pulley 2025, a first pressing plate 2026, a bushing 2027, a driven helical gear 2028, a second pressing plate 2029, and an outer pressing plate 2030.

[0098] The driving helical gear 2021 is connected and installed on one end of the fourth shaft 2022 with internal threads through a flat key, and is fixed on the fourth shaft 2022 by a connecting bolt through the third washer 2023, so that the fourth shaft 2022 and the driving helical gear 2021 rotate synchronously. The assembled components at this stage are used as the first assembled component.

[0099] The first assembled component is installed on the second bearing seat 2024 through two second bearings and the bushing 2027, and is fixed on the second bearing seat 2024 by a connecting bolt through the first pressing plate 2026 to longitudinally fix the outer ring of the bearing. Then, the bushing 2027 is installed to longitudinally fix the inner ring of the bearing. The gearbox synchronous pulley 2025 is installed on the bushing 2027, and the gearbox synchronous pulley 2025 is fixed on the upper end of the fourth shaft 2022 through a shrink disc, so that the gearbox synchronous pulley 2025 and the driving helical gear 2021 rotate synchronously. The assembled components at this stage are used as the second assembled component.

[0100] Then, the second bearing seat 2024 of the second assembled component is fixed on the box body 2020 through bolts. The driven helical gear 2028 is in tooth engagement with the driving helical gear 2021 installed on the box body 2020 and is installed on the box body 2020 through connecting two third bearings. The second pressing plate 2029 and the outer pressing plate 2030 are fixed on the box body 2020 through bolts, which play a role in restricting the third bearing and the driven helical gear 2028.

[0101] Each extrusion molding assembly is connected with a slide rail 203, and each slide rail 203 is matched with a slider 201, as Figure 5 shown.

[0102] The gearbox driving component 204 is used to synchronously drive a plurality of gearboxes 202. Based on the relative movement of the slide rail 203 and the slider 201, each gearbox 202 drives the connected extrusion molding assembly 30 to move, so as to move a plurality of extrusion molding assemblies 30 simultaneously. As Figure 6 shown, the gearbox synchronous belt 205 connects the gearbox synchronous pulleys 2025 of all the gearboxes 202.

[0103] The technical solution provided by the embodiment of the present application can realize the function of using multi-specification packaging bags. When it is necessary to switch the specifications of large packaging bags, the handwheel 2048 is shaken to adjust the size of the material outlet. When it is necessary to switch large packaging bags of different sizes, the handwheel 2048 on the hand-cranked pulley assembly 204a is shaken. When the handwheel 2048 rotates, it will synchronously drive the gearbox timing belt pulleys 2025 on the 4 gearboxes 202 to rotate synchronously through the gearbox timing belt 205. When the gearbox timing belt pulley 2025 rotates, the driving helical gear 2021 rotates. The driving helical gear 2021 drives the driven helical gear 2028 to rotate, and the driven helical gear 2028 drives the extrusion and shaping assembly 30, so that the slide rail 203 installed on the extrusion and shaping assembly 30 moves relative to the slider 201, realizing the movement of the extrusion and shaping assembly 30, thereby achieving the function of adjusting the size of the material outlet, that is, achieving the adjustment of the size of the packaging bag after being extruded and shaped. In the embodiment of the present application, the cavity can be determined according to the specifications of the large packaging bag, that is, the size of the packaging bag after being extruded and shaped can be determined according to the specifications of the large packaging bag.

[0104] Optionally, in the embodiment of the present application, the driven helical gear 2028 driving the extrusion and shaping assembly 30 may include the following content. The size adjustment assembly 20 further includes a screw 206. As Figure 5 or Figure 26 shown, the screw 206 is connected to the screw fixing plate 207 and installed on the bracket 301 through bolts. Specifically, it is installed on the back of the bracket 201, that is, installed on the third sub-bracket 3013. The T-shaped thread structure inside the driven helical gear 2028 is connected to the screw 206. Thus, the driven helical gear 2028 drives the screw 206 to move, realizing the driven helical gear 2028 driving the extrusion and shaping assembly 30.

[0105] Optionally, in the embodiment of the present application, the slide rail 203 is installed on the lower mounting surface of the fixing plate 204 through bolts. The fixing plate 204 is welded to the bracket 301. Specifically, it is centered and welded to the third sub-bracket 3013, as Figure 26 shown. In addition, the screw 206 and the slide rail 203 are located on both sides of the fixing plate 204. As Figure 26 shown, the fixing plate 204 includes a first sub-fixing plate, a second sub-fixing plate and a third sub-fixing plate. The third sub-fixing plate is located between the first sub-fixing plate and the second sub-fixing plate. The first sub-fixing plate and the second sub-fixing plate are both perpendicular to the third sub-fixing plate. The screw 206 and the slide rail 203 are located on both sides of the third sub-fixing plate.

[0106] Optionally, in the embodiment of the present application, the gearbox driving component 204 is a hand-cranked pulley assembly 204a.

[0107] The hand-cranked pulley assembly 204a includes a tension pulley 2041, a tension shaft 2042, a connecting plate 2043, a hand-cranked synchronous pulley 2044, a third bearing block 2045, a second long shaft 2046, a mounting bracket 2047, and a handwheel 2048, as Figure 32 and Figure 33 shown. The tension pulley 2041 is mounted on the tension shaft 2042 through a pair of bearings and circlips. The tension shaft 2042 is fixed to the connecting plate 2043, and the connecting plate 2043 is mounted on the mounting bracket 2047 by bolts. The hand-cranked synchronous pulley 2044 and the handwheel 2048 are mounted on the upper part of the second long shaft 2046 using nuts. The lower part of the second long shaft 2046 is connected to a bearing and is mounted on the third bearing block 2045 through an end-lock nut. The third bearing block 2045 of this assembly component is bolted and fixed to the mounting bracket 2047.

[0108] Figure 34 is Figure 6 a schematic diagram of the working process of the extrusion and shaping mechanism shown. As Figure 34 shown, before the small packaging bag falls, the four air cylinders 3052 on the two pairs of extrusion and shaping components 30a and the two pairs of extrusion and shaping components 30b are opened simultaneously. When the air cylinder airbag extends, the arc-shaped swing rod 3053 connected to it extends into the upper cavity opening of the space formed by the four extrusion and shaping components 30. When the small package falls onto the arc-shaped swing rod 3053, the arc-shaped swing rod 3053 first aligns the small package with the arc-shaped guide to be centered. After the air cylinder closes and the arc-shaped swing rod 3053 retracts, the small packaging bag enters the space formed by the four extrusion and shaping components 30. When the motor 3031 is connected to the reducer 3033 to drive the extrusion driving synchronous pulley 3021 to drive the extrusion driven synchronous pulley 3022 to move synchronously, it is the process of extruding the small packaging bag from large to small, reducing the top view area of the small packaging bag, so as to achieve the selection of a small-sized large packaging bag.

[0109] The technical solution provided by the embodiment of the present application can be applied to the field of bagging machines for filling materials into small packages and then loading multiple small packages into large packaging bags. Specifically, it involves positioning and extruding and shaping the small packages before they enter the large packaging bag, so as to match the specifications of the large packaging bag, reduce the specifications of the large packaging bag, and make the small packages stack neatly in the large packaging bag in the center.

[0110] The technical solution provided by the embodiment of the present application can be used on automated and semi-automated bagging machine equipment; the mechanism is stable, has a long service life, and a wide range of applications.

[0111] In a second aspect, the embodiment of the present application further provides a bagging machine, which includes the extrusion and shaping mechanism described in the above embodiment.

[0112] The preferred embodiments of the present application have been described in detail above. However, the present application is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all fall within the protection scope of the present application.

[0113] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present application will not separately describe various possible combination methods.

[0114] Furthermore, any combination can be made among various different embodiments of the present application, as long as it does not violate the idea of the present application, and it should also be regarded as the content disclosed by the present application.

Claims

1. An extrusion shaping mechanism for packaging bags, characterized in that: The extrusion shaping mechanism comprises: Mounting bracket, and A plurality of extrusion shaping components are installed on the fixing seat, and the plurality of extrusion shaping components cooperate with each other to extrude and shape the packaging bag.

2. The extrusion shaping mechanism according to claim 1, characterized in that: The multiple extrusion and shaping components cooperate with each other to control the falling of the packaging bag and extrude and shape the packaging bag during its falling process.

3. The extrusion shaping mechanism according to claim 2, characterized in that: The multiple extrusion molding components are dispersedly arranged to define a space for accommodating the packaging bag, and the distance from the center of gravity of each extrusion molding component to the center of the space is equal, wherein for the space, along the vertical falling direction of the packaging bag, from the packaging bag entrance to the packaging bag exit, the area of ​​the cross-section perpendicular to the vertical falling direction becomes smaller and smaller.

4. The extrusion shaping mechanism according to claim 3, characterized in that: The extrusion shaping component comprises: A bracket, mounted on the fixing seat; a packaging bag moving component, mounted on the bracket, the packaging bag moving component being used to control the falling of the packaging bag, the transport surface of the packaging bag moving component carrying the packaging bag forming a preset angle with the vertical falling direction, wherein the preset angle is greater than 0; and An extrusion driving component is installed on the bracket, and the extrusion driving component is used to drive the packaging bag moving component.

5. The extrusion shaping mechanism according to claim 4, characterized in that: The extrusion shaping component also includes: A guide plate is installed on the bracket, and the guide plate is used to guide the packaging bag to the top of the space.

6. The extrusion shaping mechanism according to claim 4, characterized in that: The packaging bag moving component comprises: An extrusion driving synchronous pulley is installed on the bracket and close to the packaging bag outlet; An extrusion driven synchronous pulley is mounted on the bracket and close to the packaging bag entrance; An extrusion synchronous belt, connecting the extrusion active synchronous belt pulley and the extrusion driven synchronous belt pulley, the extrusion synchronous belt is used to carry the packaging bag, and the transport surface carrying the packaging bag forms the preset angle with the vertical falling direction; and The synchronous belt support plate is installed on the bracket and is located in the inner ring of the extruded synchronous belt.

7. The extrusion shaping mechanism according to claim 4, characterized in that: The extrusion drive component comprises: Motors; and The first long shaft is mounted on the bracket, and the motor drives the packaging bag moving component through the first long shaft.

8. The extrusion shaping mechanism according to claim 7, characterized in that: The extrusion drive component also includes: A reducer is connected between the motor and the first long shaft.

9. The extrusion shaping mechanism according to claim 4, characterized in that: The extrusion shaping component comprises: An angle control component is installed on the bracket, and is used to support the packaging bag before the packaging bag moving component controls the packaging bag to fall, so as to control the angle of the packaging bag and the vertical falling direction.

10. The extrusion shaping mechanism according to claim 9, characterized in that: The angle control component comprises: A base, mounted on the bracket; A cylinder mounted on the base; An arc-shaped rocker arm is installed on the base, the cylinder is located at the installation position of the base and the arc-shaped rocker arm is located at the installation position of the base at both ends of the base, one end of the arc-shaped rocker arm is connected to the cylinder, and the other end of the arc-shaped rocker arm extends into the space to support the packaging bag when the telescopic rod of the cylinder is extended.

11. The extrusion shaping mechanism according to claim 1, characterized in that: The plurality of extrusion molding assemblies include four extrusion molding assemblies.

12. The extrusion shaping mechanism according to any one of claims 3 to 11, characterized in that: The extrusion shaping mechanism also includes: A size adjustment component is installed on the fixing seat, and the multiple extrusion and shaping components are installed on the size adjustment component. The size adjustment component is used to move the multiple extrusion and shaping components to adjust the size of the packaging bag after being extruded and shaped.

13. The extrusion shaping mechanism according to claim 12, characterized in that: The size adjustment component comprises: A plurality of sliders, each of which is mounted on the fixing seat; A plurality of gear boxes, each of the extrusion molding components is connected to a gear box; A plurality of slide rails, each of the extrusion molding components is connected with one of the slide rails, and each of the slide rails is matched with one of the sliders; The gear box driving component is used to synchronously drive the multiple gear boxes. Based on the relative movement of the slide rail and the slider, each gear box drives the extrusion molding assembly connected to it to move, so as to move the multiple extrusion molding assemblies simultaneously.

14. The extrusion shaping mechanism according to claim 13, characterized in that: The gear box driving component is a hand-cranked pulley assembly.

15. A bagging machine, characterized in that: The bagging machine includes: The extrusion shaping mechanism according to any one of claims 1 to 14.

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