A bag pasting machine folding cutter device and a bag pasting machine

Abstract

The application relates to a bag pasting machine folding knife device and a bag pasting machine. The bag pasting machine folding knife device comprises a plurality of sets of folding knife components arranged around a bag-shaped area and adjustable in position, the bag-shaped area has opposite bag opening sides and a bag bottom side, and a center line extending between the bag opening sides and the bag bottom side. The plurality of sets of folding knife components comprise two sets of first folding knife components located on the bag opening sides and arranged on two sides of the center line respectively, and the position adjustment direction of each first folding knife component is perpendicular to the center line. A plurality of sets of second folding knife components are arranged around the bag-shaped area from the bag opening side to the bag bottom side, and the position adjustment direction of each second folding knife component is arranged to be parallel or inclined to the center line. The folding knife components of the application are adjustable in position, and are correspondingly linked according to the adjustment trend, can be more quickly adapted to bag shape changes, and the cumbersome manual replacement and debugging are avoided, the operation difficulty is reduced, and the applied bag pasting machine can be efficiently and stably operated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of garment processing equipment, in particular to a bag attaching machine folding knife device and a bag attaching machine. BACKGROUND

[0002] The bag attaching machine is a commonly used machine in current garment production, which is used for folding and sewing garment pockets. When the bag attaching machine folds the pocket, the pocket-shaped plate and the concave die are usually used to clamp the pocket-shaped cloth, and then each folding knife, i.e. cloth folding piece, performs a folding action to finally realize the folding and forming of the pocket.

[0003] For pockets of the same pattern and different sizes, it is necessary to adjust or even replace the entire set of folding knives one by one, so a long time is needed for debugging to achieve a better folding and forming effect, which affects the production efficiency, and it is difficult to consider the relative positions of the folding knives during adjustment, which requires too high operation. SUMMARY

[0004] The present application provides a bag attaching machine folding knife device which is convenient to adjust and can quickly change the layout position of the folding knife assembly to adapt to different cloth thicknesses or pocket shapes.

[0005] The present application provides a bag attaching machine folding knife device, which comprises a plurality of folding knife assemblies arranged around a pocket-shaped area and adjustable in position, the pocket-shaped area has opposite pocket opening sides and pocket bottom sides, and a center line extending between the pocket opening sides and the pocket bottom sides, the plurality of folding knife assemblies comprises:

[0006] Two sets of first folding knife assemblies are located at the pocket opening sides and arranged on both sides of the center line, respectively, and the position adjustment direction of each first folding knife assembly is perpendicular to the center line;

[0007] A plurality of second folding knife assemblies are arranged around the pocket-shaped area from the pocket opening side to the pocket bottom side, and the position adjustment direction of each second folding knife assembly is parallel or inclined to the center line.

[0008] The following also provides several optional modes, but not as an additional limitation to the above general scheme, but only as a further supplement or preference, without technical or logical contradiction, each optional mode can be combined with the above general scheme, and can also be combined between multiple optional modes.

[0009] In one embodiment, each first folding knife assembly is adjusted in position in an automatic or manual manner;

[0010] The two sets of first folding knife assemblies are independently adjusted in position or are synchronously and reversely adjusted in position in linkage, and the linkage position adjustment is mechanically transmitted to each other or is based on a coordinated control signal.

[0011] In one of the embodiments, the edge of the bag-shaped region comprises a side edge and a bottom edge arranged in sequence from the bag opening side to the bag bottom side, and the first cutter assembly is located at one end of the side edge away from the bottom edge, and the span ratio of the cutter in the first cutter assembly to the side edge is less than or equal to 50% along the center line direction.

[0012] In one of the embodiments, the first cutter assembly and the second cutter assembly each comprise a cutter cylinder and a cutter driven by the cutter cylinder, and the span ratio of the cutter in the first cutter assembly to the total span of the cutters in the second cutter assembly is less than or equal to 30% along the center line direction.

[0013] In one of the embodiments, the bagging machine cutter device further comprises:

[0014] a base plate, each of the cutter assemblies is slidably and positionally mounted on the base plate, the position adjustment mode of the cutter assembly is to change the relative position between the cutter cylinder and the base plate, the base plate has opposite top and bottom sides, the top side of the base plate is slidably mounted with a driving plate, and each of the second cutter assemblies is mounted in the following manner:

[0015] Mode A, the bottom side of the base plate is slidably mounted with a first adjustment seat linked with the driving plate, the sliding direction of the first adjustment seat is arranged obliquely to the center line, and the cutter cylinder is mounted on the first adjustment seat;

[0016] or Mode B, the bottom side of the base plate is slidably mounted with a second adjustment seat fixed with the driving plate, the sliding direction of the second adjustment seat is parallel to the extension direction of the center line, and the cutter cylinder is mounted on the second adjustment seat;

[0017] or Mode C, the cutter cylinder is mounted on the driving plate.

[0018] In one of the embodiments, the bagging machine cutter device further comprises:

[0019] a first screw rod mechanism mounted on the top side of the base plate and linked with the driving plate, the first screw rod mechanism drives each of the second cutter assemblies to link and adjust the position through the driving plate;

[0020] a plurality of sets of the second cutter assemblies are close to or away from each other when adjusting the position, and as a whole, they are away from or close to the first cutter assembly along the center line.

[0021] In one of the embodiments, the base plate is provided with a guide groove extending along the direction perpendicular to the center line, the first cutter assembly is adjusted in a manual manner and is slidably mounted on the guide groove through a corresponding base, and a locking member is further arranged between the base and the base plate to keep the positions of each other.

[0022] In one embodiment, the folding knife device of the bag-applying machine further includes:

[0023] Two sets of bag opening folding knife assemblies are located on the bag opening side and respectively arranged on both sides of the center line. The bag opening folding knife assembly has a reciprocating oscillating bag opening folding knife. The bag opening folding knife assembly can be adjusted independently or in conjunction with the first folding knife assembly along the direction perpendicular to the center line.

[0024] The second lead screw mechanism is installed on the top side of the base plate and is linked with each of the bag opening folding knife assemblies, and is used to drive the linkage position adjustment of the two sets of bag opening folding knife assemblies.

[0025] This application also provides a bag-applying machine, including a concave die that cooperates with each other to fold bag-shaped fabric, and a position-adjustable folding knife device, wherein the folding knife device is the bag-applying machine folding knife device described in this application;

[0026] The die adopts a split structure and includes multiple position-adjustable unit molds, wherein the multiple unit molds include:

[0027] Two first unit modules are located on the bag opening side and respectively arranged on both sides of the center line, and the position adjustment direction of each first unit module is perpendicular to the center line;

[0028] Multiple second unit modules are arranged from the bag opening side to the bag bottom side to surround the bag-shaped area.

[0029] In one embodiment, the second unit module consists of two pieces, which are respectively arranged on both sides of the center line, and the position adjustment path of the second unit module gradually moves away from the center line from the bag opening side to the bag bottom side.

[0030] The first folding blade assembly is linked to the first unit module in position adjustment, and the second folding blade assembly is linked to the second unit module in position adjustment.

[0031] In one embodiment, the second folding blade assembly is arranged on both sides of the center line, and the second folding blade assembly on the same side of the center line is configured according to its positional correspondence with the bag-shaped area as follows:

[0032] Configuration A, the second folding knife assembly located on the same side of the center line includes a side folding knife assembly and a bottom folding knife assembly arranged sequentially from the bag opening side to the bag bottom side, wherein the side folding knife assembly has the same position adjustment direction as the second unit mold located on the same side of the center line, and the position adjustment direction of the bottom folding knife assembly is parallel to the center line;

[0033] Alternatively, configuration B may be used, in which the second folding knife assembly located on the same side of the center line includes a side folding knife assembly, a side bottom folding knife assembly, and a bottom folding knife assembly arranged sequentially from the bag opening side to the bag bottom side, and all three have the same position adjustment direction as the second unit mold located on the same side of the center line.

[0034] Each folding blade component in this application is position-adjustable and moves in tandem with the adjustment trend, which can adapt to changes in bag shape more quickly, eliminating the tediousness of manual replacement and adjustment, reducing the difficulty of operation, and enabling the bag-applying machine to operate efficiently and stably. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of a folding knife device for a bag-applying machine according to an embodiment of this application (applied to the bag-applying machine of this application);

[0037] Figure 2 for Figure 1 A bottom view of the folding knife device of a patch bag making machine;

[0038] Figure 3 for Figure 2 A schematic diagram of the folding knife device of a bag-sticking machine after omitting part of the folding knife;

[0039] Figure 4a This is a schematic diagram illustrating the principle of adjusting the position of the folding blade assembly in the folding blade device of the bag-applying machine of this application;

[0040] Figure 4b for Figure 4a A schematic diagram of the central bag-shaped area;

[0041] Figure 5 for Figure 1 A schematic diagram of the folding knife device of the patch bag machine from another angle;

[0042] Figure 6 for Figure 5 Enlarged view of part A in the middle;

[0043] Figure 7 for Figure 5 A schematic diagram of the mating part between the central locking cylinder and the connecting seat;

[0044] Figure 8 for Figure 1 A schematic diagram of the folding knife device of the patch bag machine from another angle;

[0045] Figure 9 for Figure 8 Enlarged view of part B in the middle;

[0046] Figure 10 for Figure 9The diagram after the first folding knife is omitted.

[0047] Figure 11 This is a schematic diagram of a folding knife device for a bag-applying machine according to another embodiment of this application;

[0048] Figure 12 for Figure 11 Enlarged view of the middle C section;

[0049] Figure 13 This is a schematic diagram of a folding knife device for a bag-applying machine according to another embodiment of this application;

[0050] Figure 14 for Figure 13 A bottom view of the folding knife device of a patch bag making machine;

[0051] Figure 15 for Figure 14 A schematic diagram of the folding knife device of a bag-sticking machine after omitting part of the folding knife;

[0052] Figure 16 for Figure 13 A schematic diagram of the folding knife device of the bag-making machine, omitting part of the folding knife and another angle after the unit mold;

[0053] Figure 17 This is a schematic diagram of a folding knife device for a bag-applying machine according to another embodiment of this application;

[0054] Figure 18 for Figure 17 Enlarged view of part D in the middle;

[0055] Figure 19 for Figure 18 The diagram below omits the bag opening folding knife assembly and the first unit mold.

[0056] Figure 20 This is a schematic diagram of a bag-sticking machine folding knife device (omitting some folding knives and bag opening folding knife assembly) according to another embodiment of this application;

[0057] Figure 21 for Figure 20 Enlarged view of part E in the middle;

[0058] Figure 22 This is a schematic diagram showing the distribution of the folding blade assembly of a bag-sticking machine folding blade device according to another embodiment of this application;

[0059] Figure 23 for Figure 22 A schematic diagram showing the position of the folding knife component in the middle and the expansion of the bag-shaped area.

[0060] The component labels are as follows:

[0061] 100, substrate; 101, first hole; 102, guide groove; 103, clearance hole; 110, first support; 120, second support;

[0062] 200. Die cavity; 210. First unit die; 220. Second unit die; 221. First adjusting seat; 222. Guide rail; 223. Slider; 224. First transmission component; 225. Connecting block;

[0063] 300. Folding knife assembly; 310. First folding knife assembly; 311. Base; 312. First folding knife cylinder; 313. First folding knife; 314. First connecting seat; 320. Second folding knife assembly; 3201. Side folding knife assembly; 3202. Side bottom folding knife assembly; 3203. Bag bottom folding knife assembly; 321. Second folding knife cylinder; 322. Piston rod; 323. Connecting seat; 3231. Insert connector; 324. Locking cylinder; 325. Second connecting seat; 326. Second folding knife; 330. Bag opening folding knife assembly; 331. Bag opening folding knife cylinder; 332. Bag opening folding knife;

[0064] 400, First lead screw mechanism; 410, First motor; 420, Coupling; 430, First lead screw; 440, Nut seat; 450, Drive plate; 451, Second hole; 452, Second transmission component; 453, Second adjusting seat; 460, First detector;

[0065] 500, Second lead screw mechanism; 510, Second motor; 520, Second lead screw; 530, Guide rod; 540, Mounting base; 550, Second detector;

[0066] 600. Bag-shaped area; 601. Side; 602. Bottom edge; 610. Bag opening side; 620. Bag bottom side; 630. Center line;

[0067] 700, Backing Mountain; 710, Right Angle Motor; 720, Guide Column; 730, Third Detector. Detailed Implementation

[0068] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0069] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level (or in a usage state, or from a certain viewpoint in the drawing) than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level (or in a usage state, or from a certain viewpoint in the drawing) than the second feature.

[0072] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0073] See Figures 1 to 6One embodiment of this application provides a folding knife device for a bag-applying machine, including multiple sets of folding knife assemblies 300 arranged and positioned adjustable around a bag-shaped region 600. The bag-shaped region 600 corresponds to a preset bag shape. Although the bag-shaped region 600 scales accordingly when the bag size changes, it has a relative bag opening side 610 and bag bottom side 620 as a whole. The bag opening side 610 and bag bottom side 620 can be understood as specific parts of the bag-shaped region 600 itself, while for other components, they can be understood as their approximate location and area. A center line 630 extends between the bag opening side 610 and the bag bottom side 620, and is approximately the axis of symmetry of the bag-shaped region 600.

[0074] The position-adjustable folding knife assembly 300 can adapt to changes in bag size. For example, the folding knife assembly 300 includes:

[0075] Two sets of first folding knife assemblies 310 are located on the bag opening side 610 and respectively arranged on both sides of the center line 630. The position adjustment direction of each first folding knife assembly 310 is perpendicular to the center line 630.

[0076] Multiple sets of second folding knife assemblies 320 are arranged around the bag-shaped area 600 from the bag opening side 610 to the bag bottom side 620. The position adjustment direction of each second folding knife assembly 320 is parallel or inclined to the center line 630.

[0077] Unless otherwise specified, the folding knife components 300 and the unit modules mentioned below are symmetrical about the center line 630 in their overall layout, but this does not strictly limit the symmetry of the specific structure, especially when they are moving or adjusting their positions, mirror synchronization is not strictly limited.

[0078] The first folding knife assembly 310 includes a first folding knife cylinder 312 and a first folding knife 313 driven by the first folding knife cylinder 312. For example, the first folding knife 313 can be connected to the piston rod of the first folding knife cylinder 312 through the first connecting seat 314 and perform linear reciprocating motion.

[0079] Similarly, the second folding knife assembly 320 includes a second folding knife cylinder 321 and a second folding knife 326 driven by the second folding knife cylinder 321. For example, the second folding knife 326 can be connected to the piston rod of the second folding knife cylinder 321 through the second connecting seat 325 and perform linear reciprocating motion.

[0080] See Figure 2 The multiple sets of second folding knife assemblies 320 include a side folding knife assembly 3201 and a bottom folding knife assembly 3203 arranged sequentially from the bag opening side 610 to the bag bottom side 620. The side folding knife assembly 3201 is inclined to the center line 630, for example, with an angle of 30 degrees to 60 degrees. The bottom folding knife assembly 3203 is parallel to the center line 630.

[0081] To address the specific folding requirements at the bag opening, the folding knife assembly 300 may also include a bag opening folding knife assembly 330. There are two sets of bag opening folding knife assemblies 330, and their relative positions are adjustable to adapt to changes in bag size. The folding knife assembly 300 is located on the side of the first folding knife assembly 310 away from the second folding knife assembly 320. The bag opening folding knife assembly 330 uses a rotary cylinder, namely the bag opening folding knife cylinder 331, which drives the reciprocating oscillating bag opening folding knife 332.

[0082] by Figure 4a Taking the orientation in the middle as an example, the dotted line represents the bag-shaped area 600. The left side of the center line 630 shows the state before the position of the first folding blade 313 and the second folding blade 326 is adjusted, and the right side of the center line 630 shows the state after the position of the first folding blade 313 and the second folding blade 326 is adjusted.

[0083] When the bag size changes and the layout of the folding blade assembly 300 needs to be adjusted, if the first folding blade 313 and the second folding blade 326 both move diagonally downward (one of which is taken as an example in the direction of arrow L) and move away from each other, the bag-shaped area 600 enclosed by the first folding blade assembly 310 and the second folding blade assembly 320 will expand and move downward as a whole, deviating from the previous reference position. Especially when the bag opening folding blade assembly 330 is configured, since the bag opening folding blade assembly 330 generally does not move along the center line 630, the first folding blade assembly 310 and the second folding blade assembly 320 will move away from the bag opening folding blade assembly 330, affecting their cooperation effect and potentially resulting in poor folding effect of the bag-shaped fabric.

[0084] This application divides the folding blade assembly 300 into a first folding blade assembly 310 that moves perpendicular to the center line 630 and a second folding blade assembly 320 that moves parallel or obliquely relative to the center line 630, based on the position adjustment trend. When adjusting its position, the first folding blade assembly 310 moves laterally in the direction of arrow W in the figure, and its projection position on the center line 630 remains unchanged, which can be used as a position reference. The overall scaling of the bag-shaped area 600 enclosed by the second folding blade assembly 320 is relative to the movement path of the first folding blade assembly 310. This provides an initial reference for the assembly and motion control of the equipment, simplifies the design and manufacturing process, and ensures the coordination of the folding blade assembly 300 with surrounding mating parts before and after adjustment.

[0085] Regarding the provision of positional reference, there are two sets of the first folding blade assembly 310, arranged on both sides of the center line 630. However, according to the positional adjustment trend of the folding blade assembly, it is not strictly limited to only two sets of the first folding blade assembly 310. Although two sets are used as an example in each attached figure, more can be set as needed.

[0086] Each first folding blade assembly 310 can be positioned automatically or manually. The two sets of first folding blade assemblies 310 can be positioned independently or synchronously and in opposite directions, with the position adjustment being achieved through mechanical transmission or based on coordinated control signals. Preferably, both sets of first folding blade assemblies 310 are adjusted in a coordinated manner, as are all the second folding blade assemblies 320.

[0087] Along the centerline 630, the folding blade of the first folding blade assembly 310 has a span M1, and the folding blade of the second folding blade assembly 320 has a total span M2. When multiple sets of the second folding blade assembly 320 are provided along the centerline 630, its total span includes not only each folding blade itself but also the interval between them. The span of each folding blade is not the boundary of its component structure shape, but should be understood as the span of the side of the folding blade that interacts with the bag-shaped fabric (this side is approximately parallel to the edge of the corresponding part of the bag-shaped area 600).

[0088] The ratio of M1 to M2 is less than or equal to 30%, for example, the ratio of M1 to M2 is 10% to 25%. Based on the approximate proportional relationship, it can be seen that the folding blade of the second folding blade assembly 320 has a larger span ratio, making it easier to adapt to a larger range of adjustments in the bag-shaped area 600, and allowing for a more reasonable distribution of the spacing of each folding blade assembly along the center line 630.

[0089] See Figure 4b The edge of the bag-shaped area 600 includes a side edge 601 and a bottom edge 602 arranged sequentially from the bag opening side 610 to the bag bottom side 620. The division of the side edge 601 and the bottom edge 602 is mainly based on the angle between the overall extension trend and the center line 630. The angle between the side edge 601 and the center line 630 is smaller or even parallel, while the angle between the bottom edge 602 and the center line 630 is larger, for example, greater than or equal to 45 degrees, or even perpendicular. The side edge 601 and the bottom edge 602 can be straight lines, arcs or broken lines without strict restrictions.

[0090] Since the first folding knife assembly 310 serves as a reference for the bag opening side 610, it is preferably located only at the end of the side 601 away from the bottom edge 602, for example along the center line 630 direction. The ratio of the folding knife span M1 of the first folding knife assembly 310 to the span of the side 601 is less than or equal to 50%, or for example, 10% to 30%.

[0091] Since the position of the folding knife assembly 300 is adjustable, the shape of the bag-shaped area 600 is not unique. The above proportions can be understood as the proportional relationship when the folding knife assembly 300 is adjusted to the smallest size of the bag-shaped area 600.

[0092] The above proportions can also be applied to unit molds in other embodiments, wherein the span of the first unit mold corresponds to the span of the folding blade in the first folding blade assembly 310, and the total span of the second unit mold corresponds to the total span of the folding blade in the second folding blade assembly 320. Similarly, the span of each unit mold is not the boundary of its component structure shape, but should refer to the location of the concave mold wall that mates with the bag-shaped plate.

[0093] Based on the folding knife device of the bag-applying machine of this application, one embodiment also provides a bag-applying machine, including a base plate 100 and a die device and multiple folding knife assemblies 300 mounted on the base plate 100. The die device and the multiple folding knife assemblies 300 cooperate with each other to fold bag-shaped fabric, wherein each unit die and each folding knife assembly 300 are adjustable in position relative to the base plate 100. The base plate 100, as a mounting platform for other components, has a top side and a bottom side. The die device includes a die 200 for defining a bag-shaped area 600. The die 200 is located on the bottom side of the base plate 100. The die 200 of this application adopts a split structure, that is, it includes multiple unit dies, each unit die being slidably and positionably mounted on the base plate 100.

[0094] The die cavity 200 has a die cavity wall that mates with the edge of the bag-shaped plate. The bag-shaped area 600 can also be adjusted by scaling the die cavity 200, which changes the bag-shaped area 600, with reference to the area enclosed by the die cavity wall. In terms of the die cavity wall as a whole, it can be understood that each unit die provides a portion of the unit wall. In this application, when the bag size changes, the die cavity device and the multiple sets of folding knife assemblies 300 are adjusted accordingly to ensure that the bag-shaped area 600 enclosed by the die cavity device and the multiple sets of folding knife assemblies 300 remains consistent.

[0095] In this embodiment, multiple position-adjustable unit mold bodies include:

[0096] Two first unit modules 210 are located on the bag opening side 610 and are respectively arranged on both sides of the center line 630. The position adjustment direction of each first unit module 210 is perpendicular to the center line 630.

[0097] Multiple second unit modules 220 are arranged around the bag-shaped area 600 from the bag opening side 610 to the bag bottom side 620, and the position adjustment direction of each second unit module 220 is parallel or inclined to the center line 630.

[0098] To adjust each of the second folding blade assemblies 320 and each of the second unit molds 220, different transmission methods such as cams, connecting rods, and gears can be used. Preferably, in one embodiment of this application, the folding blade device of the bag-applying machine is also equipped with a first lead screw mechanism 400. The first lead screw mechanism 400 is installed on the top side of the base plate 100 and drives each of the second folding blade assemblies 320 and each of the second unit molds 220 to perform linkage position adjustment in a corresponding transmission manner, which can improve adjustment efficiency and synchronization.

[0099] The first lead screw mechanism 400 includes a first motor 410 (which may be equipped with a reducer as needed), a coupling 420, a first lead screw 430, and a nut seat 440 that is threadedly engaged with the first lead screw 430. A first support 110 is fixed to the top side of the base plate 100. The first support 110 may include multiple support components that respectively support the two ends of the first motor 410 and the first lead screw 430. A drive plate 450 that slides on the top side of the base plate 100 is fixed to the bottom of the nut seat 440. The drive plate 450 is linked with each of the second folding knife assemblies 320 and each of the second unit molds 220. A mutually cooperating guide structure may be provided between the top side of the base plate 100 and the drive plate 450. For example, one has a guide rail and the other has a guide seat that cooperates with the guide rail, so as to guide the smooth movement of the drive plate 450.

[0100] To assist in automatic control, a first detector 460 can be set to sense the position of the nut seat 440, and correspondingly provide feedback and control the second folding knife assembly 320 and the second unit module 220 to adjust their positions. The extension direction of the first lead screw 430 is consistent with the center line 630, which can save height space. In a preferred embodiment, the vertical projection position of the first lead screw 430 corresponds to the position of the center line 630, which is more convenient for the symmetrical arrangement of the transmission mechanism.

[0101] A first adjustment seat 221, which is linked to the drive plate 450, is slidably mounted on the bottom side of the substrate 100. The second unit module 220 is directly or indirectly fixed to the bottom of the first adjustment seat 221 through the connecting block 225. According to the expected position adjustment direction, the first adjustment seat 221 and the drive plate 450 can adopt a corresponding transmission method. Since the drive plate 450 moves along the center line 630 with the nut seat 440, and the position adjustment direction of the second unit module 220 is inclined to the center line 630, the transmission method adopted in this embodiment is that the substrate 100 has a first hole 101, and the drive plate 450 has a second hole 451. The first hole 101 and the second hole 451 are inclined and have an overlapping area. The second hole 451 extends approximately along the vertical center line 630. The extension direction of the first hole 101 corresponds to the position adjustment direction of the second unit module 220. A first transmission component 224 is fixed on the first adjustment seat 221. The first transmission component 224 can be, for example, a transmission pin, and passes upward through the first hole 101 and the second hole 451 in sequence. With the cooperation of the first hole 101 and the second hole 451, the first transmission component 224 drives the first adjustment seat 221 and the second unit module 220.

[0102] To ensure smooth guidance, a guide rail 222 is provided at the bottom of the substrate 100, and a slider 223 that cooperates with the guide rail 222 is provided at the top of the first adjustment seat 221. Of course, the guide rail 222 and the slider 223 can also be interchanged.

[0103] The second folding knife cylinder in the side folding knife assembly 3201 is mounted on the first adjusting seat 221 and moves synchronously with the second unit module 220 during position adjustment.

[0104] The second folding knife cylinder 321 in the bag bottom folding knife assembly 3203 is located on the top side of the base plate 100 and mounted on the drive plate 450. The piston rod 322 of the second folding knife cylinder 321 is connected to a connecting seat 323 extending to the bottom side of the base plate 100. A locking cylinder 324 is provided on the connecting seat 323. The second folding knife 326 is detachably fixed to the connecting seat 323 by a second connecting seat 325 and is locked and positioned by the locking cylinder 324. The second connecting seat 325 can also be fixed to the connecting seat 323 by screws or other means.

[0105] To drive the bag opening folding knife assembly 330, a second support 120 is provided on the top side of the base plate 100, and a second lead screw mechanism 500 is correspondingly configured. The second lead screw mechanism 500 includes a second motor 510 mounted on the second support 120, a second lead screw 520 linked to the second motor 510, and a pair of mounting seats 540 threadedly engaged with the second lead screw 520. The bag opening folding knife assembly 330 consists of two sets, each set being disposed on a corresponding mounting seat 540. A guide rod 530 is also fixed to the second support 120. Each mounting seat 540 is slidably sleeved on the guide rod 530 to limit the direction of movement. To assist in automatic control, a second detector 550 can be set to sense the position of the mounting seat 540, and correspondingly provide feedback and control the position adjustment of the bag opening folding knife assembly 330. Because the second lead screw 520 is used for driving, the two sets of bag opening folding knife assemblies 330 move in opposite directions synchronously when adjusting their positions, resulting in high adjustment accuracy.

[0106] Since the bag opening folding knife assembly 330, the first folding knife assembly 310 and the first unit module 210 are located close to each other and have the same position adjustment trend, the three can be adjusted independently, or two or all three can be adjusted in conjunction.

[0107] For example, when the bag opening folding knife assembly 330 is linked to the first unit module 210 for position adjustment, it can also be understood that the second lead screw mechanism 500 also drives the two first unit modules 210 to be linked for position adjustment.

[0108] For example, when the bag opening folding knife assembly 330 and the first folding knife assembly 310 are linked for position adjustment, it can also be understood that the second lead screw mechanism 500 also drives the two sets of first folding knife assemblies 310 to be linked for position adjustment.

[0109] To facilitate the clamping of bag-shaped fabric by the bag-shaped plate, the bottom side of the base plate 100 is provided with a liftable backrest 700 (electromagnet), which can attract or release the bag-shaped plate by electromagnetic force. Both the backrest 700 and the bag-shaped plate can be adjusted in height automatically or manually. The transmission method can be different, such as gear rack, worm gear, bevel gear, etc.

[0110] In one embodiment of this application, a right-angle motor 710 is provided on the top side of the substrate 100 to drive the support 700 to rise and fall. The extension direction of the right-angle motor 710 is consistent with the center line 630 and located below the first lead screw 430, which optimizes the spatial arrangement and reduces mutual interference. The output shaft of the right-angle motor 710 is vertically arranged pointing to the bottom side of the substrate 100 and is linked to the support 700 accordingly. For example, the rotational motion of the output shaft can be converted into the rising and falling motion of the support 700 by means of threaded transmission. In order to guide the support 700 to rise and fall smoothly, the substrate 100 is provided with a guide hole, and a guide post 720 extending upward and slidingly engaged with the guide hole is fixed on the support 700. In order to assist automatic control, a third detector 730 can be set to sense the position of the guide post 720, and correspondingly provide feedback and control the rising and falling height of the support 700.

[0111] Multiple second unit molds 220 move closer to each other during position adjustment to reduce the size of the die cavity 200 and the gap between the die cavity wall and the edge of the bag-shaped plate, or move further apart during position adjustment to expand the die cavity 200 and increase the gap between the die cavity wall and the edge of the bag-shaped plate. Since the positions of the two first unit molds 210 serve as a reference, the multiple second unit molds 220 move closer to or further away from the first unit molds 210 along the centerline 630.

[0112] The number of second unit molds 220 can be set according to the overall size of the concave mold 200 and the edge shape of the bag-shaped area 600, for example, 2 to 6. One embodiment of this application also provides a preferred method, in which the second unit molds 220 are arranged in two symmetrical pieces on both sides of the center line 630. The unit wall of each second unit mold 220 is zigzag-shaped, matching the preset bag-shaped area 600. The position adjustment path of each second unit mold 220 gradually moves away from the center line 630 from the bag opening side 610 to the bag bottom side 620. The position adjustment path of the second unit mold 220 is inclined to the center line 630, for example, having an angle of 30 to 60 degrees. Of course, in other embodiments, it is also permissible for some of the second unit molds 220 located on the bag bottom side 620 to be adjusted along the direction of the center line 630.

[0113] During position adjustment, each unit module can be adjusted automatically (with a power source such as a motor) and / or manually. All unit modules can be adjusted independently, or multiple unit modules can be adjusted in tandem. For example, all first unit modules 210 can be adjusted synchronously in opposite directions, or all second unit modules 220 can be adjusted in tandem, or even all unit modules can participate in tandem position adjustment. Tandem position adjustment does not require all participants to move at the same time or along the same path.

[0114] See Figure 7To allow for more flexible adjustment of the relative position between the second folding blade 326 and the connecting seat 323, the connecting seat 323 is provided with an open bottom groove. The connecting piece 3231 is restricted in the groove by the locking cylinder 324. The connecting piece 3231 is provided with several position holes. The second connecting seat 325 is provided with a slot and fasteners are inserted between each position hole. When the fasteners are loosened, the second connecting seat 325 is allowed to slide relative to the connecting seat 323 or adjust the position.

[0115] In the bag-applying machine of this application, in order to better synchronize and adapt to changes in the thickness or size of the bag fabric and simplify the equipment structure, the position adjustment of each folding blade assembly and the position adjustment of each unit mold are linked by mechanical structure or circuit control. For example, in one embodiment, the first folding blade assembly 310 and the first unit mold 210 have the same movement trend, so their positions are linked. The second folding blade assembly 320 and the second unit mold 220 are adjusted to move closer or further apart, so their positions are also linked. The linked position adjustment is achieved through mechanical transmission between them or by action based on coordinated control signals.

[0116] See Figures 8 to 10 The first unit mold 210, the bag opening folding knife assembly 330, and the first folding knife assembly 310 are all located at the bottom of the mounting base 540, which is driven by the second lead screw 520. Therefore, the three components move synchronously during position adjustment. The bag opening folding knife cylinder 331 and the first folding knife cylinder 312 are both fixed to the mounting base 540, and the first unit mold 210 is fixed near the cylinder body of the bag opening folding knife cylinder 331. During position adjustment, the synchronous movement of these three components ensures adjustment accuracy and improves the utilization rate of the drive mechanism and the integration effect of the transmission components.

[0117] See Figures 11 to 12 The main difference between the bag-sealing machine provided in another embodiment of this application and the previous embodiments is that the bag bottom folding knife assembly 3203 in the second folding knife assembly 320 has a second folding knife cylinder 321 arranged on the bottom side of the substrate 100. The substrate 100 is provided with a clearance hole 103. A second transmission member 452 is fixed at the bottom of the drive plate 450. The second transmission member 452 extends through the clearance hole 103 to the bottom of the substrate 100 and is fixed with a second adjustment seat 453. The second folding knife cylinder 321 is installed on the second adjustment seat 453. Similarly, the second folding knife 326 is connected to the piston rod of the second folding knife cylinder 321.

[0118] The bag-shaped region 600 in the above embodiments is angled, see [reference]. Figures 13 to 16The main difference between the bag-applying machine provided in another embodiment of this application and the embodiments described above is that the bag-shaped area 600 is truncated, and the multiple sets of second folding knife assemblies 320 include a side folding knife assembly 3201, a side bottom folding knife assembly 3202, and a bag bottom folding knife assembly 3203 arranged sequentially from the bag opening side 610 to the bag bottom side 620. The second folding knife cylinders of the three folding knife assemblies 3201, 3202, and 3203 are all arranged on the bottom side of the base plate 100 and installed on the first adjusting seat 221. Based on this, the three folding knife assemblies move synchronously with the second unit mold 220 when their positions are adjusted.

[0119] In other embodiments, a first adjustment seat 221 and a third adjustment seat (not shown) that are linked to the drive plate 450 are slidably mounted on the bottom side of the substrate 100. The second unit module 220 and the side folding knife assembly 3201 are both mounted on the first adjustment seat 221, while the side bottom folding knife assembly 3202 and the bag bottom folding knife assembly 3203 are both mounted on the third adjustment seat. The position adjustment can be more flexibly controlled. The first adjustment seat 221 and the third adjustment seat can adopt the same adjustment movement direction.

[0120] See Figures 17 to 19 Another embodiment of this application provides a bag-applying machine that is different from the embodiments described above (e.g., Figure 11 The main difference in the corresponding embodiment lies in the linkage method of the first unit mold 210, the bag opening folding knife assembly 330, and the first folding knife assembly 310. In this embodiment, the substrate 100 is provided with a guide groove 102 extending along the vertical center line 630. A base 311 is slidably disposed in the guide groove 102, and the first folding knife assembly 310 is mounted on the base 311. A locking element (such as a bolt) is also provided between the base 311 and the substrate 100 to maintain their respective positions. In this embodiment, the first folding knife assembly 310 is manually adjusted and the adjusted position is maintained by the locking element. The bag opening folding knife assembly 330 and the first unit mold 210 are both disposed at the bottom of the mounting base 540, and they move synchronously when their positions are adjusted.

[0121] See Figures 20 to 21 Another embodiment of this application provides a bag-applying machine that is different from the embodiments described above (e.g., Figure 17The main difference in the corresponding embodiment lies in the linkage method of the first unit mold 210, the bag opening folding knife assembly 330, and the first folding knife assembly 310. The bag opening folding knife assembly 330 has been omitted in the figure, and it can be seen that both the first folding knife assembly 310 and the first unit mold 210 are mounted on the base 311, and a locking member is provided between the base 311 and the base plate 100 to maintain their respective positions. In this embodiment, the first folding knife assembly 310 and the first unit mold 210 are adjusted manually, and the adjusted position is maintained by the locking member. The bag opening folding knife assembly 330 is located at the bottom of the mounting base 540, and its position is adjusted by the second lead screw mechanism 500.

[0122] See Figures 22 to 23 In another embodiment of this application, the folding knife device of the bag-sticking machine provides different folding knife component arrangements. Its driving method and other components can be combined with the above embodiments. In this embodiment, there are two sets of first folding knife components 310 arranged on both sides of the center line 630, and three sets of second folding knife components 320. Although the shapes of their respective folding knives are different, in terms of their overall arrangement, they are basically symmetrical about the center line 630, that is, one set is in the center and the other two sets are distributed on both sides.

[0123] Figure 23 The arrows in the diagram illustrate the position adjustment trends of some folding knife components. As shown, the first folding knife component 310 adjusts perpendicularly to the center line 630, the second folding knife component 320, located in the center, adjusts parallel to the center line 630, and the second folding knife components 320 on either side adjust obliquely to the center line 630. When adjustment is needed, the first folding knife component 310 moves laterally while maintaining its position reference, and the various sets of second folding knife components 320 diverge away from each other, with all second folding knife components 320 moving away from the movement path of the first folding knife component 310 as a whole.

[0124] When the bag-making machine of this application is in operation, if the thickness of the bag-shaped fabric changes, in standby mode, the first lead screw mechanism 400 drives each second unit mold 220 and each second folding knife assembly 320 to change their relative positions, ultimately realizing the overall scaling of the concave mold 200 and the folding knife assembly 300 and adjusting the gap with the edge of the bag-shaped plate. At the same time, the height of the backrest 700 can also be changed by the right-angle motor 710, that is, adjusting the gap with the top surface of the bag-shaped plate to achieve the best folding effect.

[0125] When the size changes within the same pattern, in addition to the above operations, the first unit mold 210, the bag opening folding knife assembly 330, and the first folding knife assembly 310 can be driven by the second lead screw mechanism 500 to adjust along the vertical center line 630 to adapt to the new size and achieve the best folding effect.

[0126] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0127] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A folding knife device for a bag-applying machine, characterized in that, The device includes multiple sets of folding knife assemblies arranged and adjustable around a bag-shaped area, the bag-shaped area having opposing opening and bottom sides, and a centerline extending between the opening and bottom sides. The multiple sets of folding knife assemblies include: Two sets of first folding knife assemblies are located on the bag opening side and respectively arranged on both sides of the center line, and the position adjustment direction of each first folding knife assembly is perpendicular to the center line; Multiple sets of second folding knife assemblies are arranged around the bag-shaped area from the bag opening side to the bag bottom side, and the position adjustment direction of each second folding knife assembly is parallel to or inclined to the center line.

2. The folding knife device for a bag-applying machine as described in claim 1, characterized in that, The edge of the bag-shaped area includes a side edge and a bottom edge arranged sequentially from the bag opening side to the bag bottom side. The first folding knife assembly is located only at the end of the side edge away from the bottom edge. Along the centerline direction, the ratio of the span of the folding knife in the first folding knife assembly to the span of the side edge is less than or equal to 50%.

3. The folding knife device for a bag-applying machine as described in claim 1, characterized in that, Both the first folding knife assembly and the second folding knife assembly include a folding knife cylinder and a folding knife driven by the folding knife cylinder; Along the centerline direction, the ratio of the span of the folding blade in the first folding blade assembly to the total span of the folding blades in the second folding blade assembly is less than or equal to 30%.

4. The folding knife device for a bag-applying machine as described in claim 3, characterized in that, The folding knife device of the bag-applying machine also includes: A base plate, on which each of the folding blade assemblies is slidably and positionably mounted, the position of each folding blade assembly is adjusted by changing the relative position of the folding blade cylinder and the base plate, the base plate has opposing top and bottom sides, a drive plate is slidably mounted on the top side of the base plate, and the mounting method of each second folding blade assembly is as follows: Method A: A first adjustment seat that is linked to the drive plate is slidably mounted on the bottom side of the substrate. The sliding direction of the first adjustment seat is inclined to the center line. The folding knife cylinder is mounted on the first adjustment seat. Alternatively, in method B, a second adjusting seat fixed to the drive plate is slidably mounted on the bottom side of the substrate, the sliding direction of the second adjusting seat is parallel to the extension direction of the center line, and the folding knife cylinder is mounted on the second adjusting seat; Alternatively, in method C, the folding knife cylinder is mounted on the drive plate.

5. The folding knife device for a bag-applying machine as described in claim 4, characterized in that, The folding knife device of the bag-applying machine also includes: The first lead screw mechanism is installed on the top side of the substrate and is linked with the drive plate. The first lead screw mechanism drives the second folding blade assembly to adjust its linkage position through the drive plate. Multiple sets of the second folding knife assemblies move closer or further apart from each other during position adjustment, and generally move away from or closer to the first folding knife assembly along the centerline.

6. The folding knife device for a bag-applying machine as described in claim 4, characterized in that, The substrate is provided with a guide groove extending along the direction perpendicular to the center line. The first folding knife assembly is manually adjustable and slidably mounted on the guide groove via a corresponding base. A locking element is also provided between the base and the substrate to maintain their respective positions.

7. The folding knife device for a bag-applying machine as described in claim 4, characterized in that, The folding knife device of the bag-applying machine also includes: Two sets of bag opening folding knife assemblies are located on the bag opening side and respectively arranged on both sides of the center line. The bag opening folding knife assembly has a reciprocating oscillating bag opening folding knife. The bag opening folding knife assembly can be adjusted independently or in conjunction with the first folding knife assembly along the direction perpendicular to the center line. The second lead screw mechanism is installed on the top side of the base plate and is linked with each of the bag opening folding knife assemblies, and is used to drive the linkage position adjustment of the two sets of bag opening folding knife assemblies.

8. A bag-sealing machine, comprising a concave die for folding bag-shaped fabric and an adjustable folding knife device, characterized in that, The folding knife device is the folding knife device of the bag-applying machine as described in any one of claims 1 to 7; The die adopts a split structure and includes multiple position-adjustable unit molds, wherein the multiple unit molds include: Two first unit modules are located on the bag opening side and respectively arranged on both sides of the center line, and the position adjustment direction of each first unit module is perpendicular to the center line; Multiple second unit modules are arranged from the bag opening side to the bag bottom side to surround the bag-shaped area.

9. The bag-applying machine as described in claim 8, characterized in that, The second unit module consists of two pieces, which are respectively arranged on both sides of the center line. The position adjustment path of the second unit module gradually moves away from the center line from the bag opening side to the bag bottom side. The first folding blade assembly is linked to the first unit module in position adjustment, and the second folding blade assembly is linked to the second unit module in position adjustment.

10. The bag-applying machine as described in claim 8, characterized in that, The second folding blade assembly is arranged on both sides of the center line. The second folding blade assembly on the same side of the center line is configured in the following way according to its positional correspondence with the pocket-shaped area: Configuration A, the second folding knife assembly located on the same side of the center line includes a side folding knife assembly and a bottom folding knife assembly arranged sequentially from the bag opening side to the bag bottom side, wherein the side folding knife assembly has the same position adjustment direction as the second unit mold located on the same side of the center line, and the position adjustment direction of the bottom folding knife assembly is parallel to the center line; Alternatively, configuration B may be used, in which the second folding knife assembly located on the same side of the center line includes a side folding knife assembly, a side bottom folding knife assembly, and a bottom folding knife assembly arranged sequentially from the bag opening side to the bag bottom side, and all three have the same position adjustment direction as the second unit mold located on the same side of the center line.

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