Bag folding device

Abstract

The utility model provides a bag folding device, which is used for folding cloth forming a bag opening and comprises a pair of first folding plates, a pair of second folding plates, a pair of third folding plates and a pair of fourth folding plates, and the first folding plates are oppositely arranged in a first direction and fold the cloth towards the outer side in the first direction; a pair of second folded plates which face each other in a second direction orthogonal to the first direction, are disposed on both sides of the pair of first folded plates in the second direction, and fold the cloth outward in the second direction; the pair of first folded plate moving assemblies are connected with the pair of first folded plates respectively and drive the first folded plates to move in the first direction; the pair of second folded plate moving assemblies are connected with the pair of second folded plates respectively and drive the second folded plates to move in the up-down direction and the second direction; the first folded plate moving assembly and the second folded plate moving assembly are fixed to the fixing plate, and the fixing plate is provided with an opening allowing the first folded plate and the second folded plate to pass through; and the fixed plate moving assembly drives the fixed plate to move in the vertical direction, so that the time required for cloth folding treatment is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of garment processing machinery, specifically to a bag folding device. Background Technology

[0002] In the field of garment processing machinery, folding devices for opening garment pockets are crucial auxiliary machines. Patent Document 1 discloses a pocket folding mechanism in which four sets of folding blades are arranged to form a rectangular outline, and each set of folding blades is connected to a lifting assembly and a lateral movement assembly. When folding a pocket using such a mechanism, firstly, a pair of oppositely arranged folding blades descends to the folding position and then expands outward to fold the pocket. Then, another pair of oppositely arranged folding blades retracts inward and descends, expanding outward to fold the pocket after descending to the folding position. Next, the other pair of folding blades retracts inward and rises, moving outward to return to its initial position after reaching the initial height. Finally, the remaining pair of folding blades retracts inward and rises to return to its initial position. According to the configuration of the folding blades in the existing technology, after one pair of folding blades descends and expands to fold the bag, the other pair of folding blades can then retract, descend, and expand to fold the bag. The folding process is cumbersome, time-consuming, and inefficient.

[0003] Existing technical documents

[0004] Patent Document 1: CN212655959U Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The present invention was made in view of the above-mentioned problems, and its purpose is to provide a bag folding device that can simplify the bag folding process, shorten the bag folding time, and improve the bag folding efficiency.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, the present invention provides a bag-folding device for folding fabric to form a bag opening, comprising:

[0009] A pair of first folding plates, which are opposite each other in a first direction, fold the fabric outward in the first direction;

[0010] A pair of second folding plates, which are opposite each other in a second direction orthogonal to the first direction, are arranged on both sides of the pair of first folding plates in the second direction, and fold the fabric outward in the second direction;

[0011] A pair of first folding plate moving components, each connected to a pair of first folding plates, drive the first folding plates to move in the first direction;

[0012] A pair of second folding plate moving components are respectively connected to a pair of second folding plates, driving the second folding plates to move in the vertical direction and in the second direction;

[0013] A fixed plate, on which the first folding plate moving assembly and the second folding plate moving assembly are fixed, and having an opening for the first folding plate and the second folding plate to pass through; and

[0014] A fixed plate moving assembly drives the fixed plate to move vertically.

[0015] Viewed from the first direction, the first fold plate is configured in a roughly convex shape. In the initial state before folding the fabric, a pair of second fold plates are located above the shoulders on both sides of the first fold plate, and the lower ends of the second fold plates do not protrude outward from the shoulders.

[0016] The folding device of this embodiment improves the shape and configuration of the folding plates. When the fixed plate is driven to move vertically by the fixed plate moving assembly, the first and second folding plates move vertically simultaneously. When the fixed plate moving assembly drives the fixed plate downward to bring the first folding plate to the folding position, the second folding plate also approaches the corresponding folding position. Since the second folding plate is initially located above the shoulder of the first folding plate, it does not affect the downward movement of the pair of first folding plates in a folded state, and there is no need to avoid the first folding plate from the outside in the width direction in order for the first folding plate to fold inward. Furthermore, since the lower end of the second folding plate does not protrude outward from the shoulder of the first folding plate in the initial state, after the first folding plate reaches the folding position and expands outward to complete the folding process, the second folding plate can move directly downward while maintaining its initial position in the second direction, without needing to first fold inward from the outside avoidance position and then move downward as in the prior art. Since the second folding plate does not interfere with the horizontal movement of the first folding plate, it reduces the number of horizontal movement steps, thereby simplifying the bag folding process, shortening the time required for fabric folding, and improving production efficiency. Furthermore, the fixed plate is driven to move up and down by the fixed plate moving assembly, and the first folding plate moves accordingly. Therefore, there is no need to set up a separate moving assembly for the first folding plate, thus simplifying the structure of the bag folding device.

[0017] According to an embodiment of the present invention, the second folding plate moving assembly includes:

[0018] The second folding plate longitudinal moving assembly drives the second folding plate to move in the vertical direction; and

[0019] The second folding plate lateral moving assembly drives the second folding plate to move along the second direction.

[0020] The folding device of this embodiment can accurately control the folding position of the second folding plate by controlling the longitudinal and lateral movements of the second folding plate respectively.

[0021] According to an embodiment of the present invention, the second folding plate moving component is a rotation driving component that drives the second folding plate to rotate in a counterclockwise or clockwise direction.

[0022] The bag folding device of this embodiment simplifies the driving structure of the second folding plate and further shortens the movement time of the second folding plate.

[0023] According to an embodiment of the present invention, the fixed plate moving assembly includes a fixed plate longitudinal moving cylinder, the piston rod of which is connected to the fixed plate and drives the fixed plate to move in the up-down direction.

[0024] The bag folding device of this embodiment can simultaneously drive a pair of first folding plates and a pair of second folding plates to move up and down at the same time through a fixed plate longitudinal moving cylinder, achieving efficient driving with a simple device structure.

[0025] According to an embodiment of the present invention, the longitudinal movement cylinder of the fixed plate is a double piston rod cylinder, and the piston rod is connected to the fixed plate via a bracket that spans across the fixed plate.

[0026] The bag folding device of this embodiment can achieve the movement drive of the fixed plate with a stable support structure.

[0027] According to an embodiment of the present invention, the first folding plate moving assembly includes a first folding plate lateral moving cylinder, the piston rod of the first folding plate lateral moving cylinder is connected to the first folding plate, and drives the first folding plate to move along the first direction.

[0028] The folding device of this embodiment can accurately control the folding position of the first folding plate with a simple structure.

[0029] According to an embodiment of the present invention, the first folding plate lateral movement cylinder is a double piston rod cylinder.

[0030] The bag folding device of this embodiment can achieve the movement drive of the first folding plate with a stable support structure.

[0031] According to an embodiment of the present invention, the second folding plate longitudinal moving assembly includes a second folding plate longitudinal moving cylinder.

[0032] The second folding plate lateral movement assembly includes a second folding plate lateral movement cylinder.

[0033] The second folding plate moving assembly also includes:

[0034] The second folding plate longitudinal movement cylinder bracket is fixed with the second folding plate longitudinal movement cylinder and connected to the piston rod of the second folding plate transverse movement cylinder; and

[0035] The second folding plate bracket has the second folding plate fixed to it and is connected to the piston rod of the longitudinal movement cylinder of the second folding plate.

[0036] A guide rail extending in the vertical direction is provided on the second folding plate longitudinal moving cylinder bracket, and a slider is fixed on the second folding plate bracket, the slider slidingly engaging with the guide rail.

[0037] The piston rod of the second folding plate lateral movement cylinder drives the second folding plate longitudinal movement cylinder bracket to move along the second direction.

[0038] The piston rod of the second folding plate longitudinal movement cylinder drives the second folding plate bracket to move in the vertical direction.

[0039] The bag folding device of this embodiment can control the longitudinal and lateral movements of the second folding plate with a simple structure, and the longitudinal movement direction of the second folding plate can be stably controlled by the cooperation of the guide rail and the slider.

[0040] According to an embodiment of this utility model, the second folding plate lateral movement cylinder is a double piston rod cylinder.

[0041] The bag folding device of this embodiment can achieve lateral movement drive of the second folding plate with a stable support structure.

[0042] According to an embodiment of this utility model, the rotary drive assembly includes a rotary drive cylinder and a rotating component.

[0043] The rotary drive cylinder is fixed to the fixing plate in a manner that allows it to rotate around the base end.

[0044] The rotating component has a shaft extending along the first direction at its lower end, the two ends of which engage with the openings of the fixed plate at their respective ends in the first direction. The upper part of the rotating component is hinged to the piston rod of the rotary drive cylinder.

[0045] The second folding plate is fixed to the rotating component by means that its lower end is inclined inward toward the opening.

[0046] The piston rod of the rotary drive cylinder drives the rotating component to rotate around the axis.

[0047] The bag folding device of this embodiment simplifies the driving structure of the second folding plate and further shortens the movement time of the second folding plate.

[0048] (III) Beneficial Effects

[0049] The bag folding device provided according to the embodiments of this utility model can simplify the structure of the bag folding device and the fabric folding process, shorten the time required for fabric folding, and improve production efficiency. Attached Figure Description

[0050] Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, and relative arrangements of the constituent components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples.

[0051] Figure 1 This is an exploded structural diagram of a bag-folding device according to one embodiment of the present invention.

[0052] Figure 2 This is a schematic diagram of the structure of two pairs of folding plates in a bag-folding device according to one embodiment of this utility model.

[0053] Figure 3 This is a schematic diagram of the overall structure of a bag-folding device according to one embodiment of the present invention.

[0054] Figure 4 This is a partial structural schematic diagram of a bag-folding device according to one embodiment of the present invention.

[0055] Figure 5 This is a schematic diagram of another part of the structure of the bag folding device according to one embodiment of the present invention.

[0056] Figure 6 This is an exploded structural diagram of another part of the bag-folding device according to one embodiment of the present invention.

[0057] Figure 7 This is a partial structural schematic diagram of a bag-folding device according to another embodiment of the present invention.

[0058] Explanation of reference numerals in the attached figures:

[0059] 1: Fixed plate; 2: Fabric presser foot; 3: Fabric; 4: Worktable; 5: Holding component; 61, 62: Second folding plate; 63, 64: First folding plate; 601: Fixed plate moving assembly; 602: First folding plate moving assembly; 603: Second folding plate longitudinal moving assembly (second folding plate moving assembly); 604: Second folding plate lateral moving assembly (second folding plate moving assembly); 605: Rotary drive assembly (second folding plate moving assembly); 6011: Fixed plate longitudinal moving cylinder; 6012: Live cylinder 6014: Support; 6021: First folding plate lateral movement cylinder; 6022: Piston rod; 6031: Second folding plate longitudinal movement cylinder; 6032: Piston rod; 6033: Second folding plate support; 6034: Second folding plate longitudinal movement cylinder support; 6035: Slider; 6036: Guide rail; 6041: Second folding plate lateral movement cylinder; 6042: Piston rod; 6051: Rotary drive cylinder; 6052: Piston rod; 6053: Shaft; 6054: Rotating component. Detailed Implementation

[0060] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0061] In the embodiments of this utility model, the terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or assemblies, but do not exclude the presence or addition of one or more other features, elements, components or assemblies.

[0062] Features modified by terms such as "first" and "second" in the specification and claims of this utility model may explicitly or implicitly include one or more features. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0063] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] It should be noted that, in the following description of the embodiments, for ease of description, the opposing direction of a pair of first folding plates 63 and 64 is taken as the first direction, the opposing direction of a pair of second folding plates 61 and 62 is taken as the second direction, and the direction perpendicular to the plane where the fixing plate 1 is located is taken as the up and down direction. However, the first direction, second direction and up and down direction mentioned in the description do not represent a limitation on the components of this utility model.

[0065] In one embodiment of this utility model, such as Figure 1 and 2 As shown, during the bag opening process, after the bag opening machine cuts the bag opening of the fabric 3, it uses a bag folding device to fold the bag opening. The bag folding device includes a pair of first folding plates 63 and 64, which are opposite each other in a first direction and fold the fabric 3 outwards in that direction; a pair of second folding plates 61 and 62, which are opposite each other in a second direction orthogonal to the first direction and are positioned on both sides of the pair of first folding plates 63 and 64 in the second direction, folding the fabric 3 outwards in that direction; a pair of first folding plate moving assemblies 602, which are respectively connected to the pair of first folding plates 63 and 64 and drive the first folding plates 63 and 64 to move in the first direction; and a pair of second folding plate moving assemblies, which are respectively connected to the pair of second folding plates 61 and 62 and drive the second folding plates 61 and 62 to move in the first direction. 62 moves in the vertical direction and in the second direction; a fixed plate 1, which is fixed with a first folding plate moving assembly 602 and a second folding plate moving assembly, and has an opening for the first folding plates 63, 64 and the second folding plates 61, 62 to pass through; and a fixed plate moving assembly 601, which drives the fixed plate 1 to move in the vertical direction. When viewed from the first direction, the first folding plates 63, 64 are configured in a generally convex shape. In the initial state before the fabric is folded, a pair of second folding plates 61, 62 are located above the shoulders on both sides of the first folding plates 63, 64, and the lower ends of the second folding plates 61, 62 do not protrude outward from the shoulders.

[0066] According to the embodiment of this utility model, when the fixed plate 1 is driven to move in the vertical direction by the fixed plate moving assembly 601, the first folding plates 63 and 64 and the second folding plates 61 and 62 move simultaneously in the vertical direction. When the fixed plate moving assembly 601 drives the fixed plate 1 to move downward so that the first folding plates 63 and 64 reach the folding position, the second folding plates 61 and 62 also approach the corresponding folding position. Since the second folding plates 61 and 62 are located above the shoulders of the first folding plates 63 and 64 in the initial state, the second folding plates 61 and 62 will not affect the first folding plates 63 and 64 from moving downward in a folded state. Compared with the prior art, where the second folding plate needs to avoid the first folding plate from the outside in the second direction in order to facilitate the first folding plate to fold inward, the avoidance and folding steps of the second folding plates 61 and 62 can be eliminated. Since the lower ends of the second folding plates 61 and 62 do not protrude outward from the shoulders of the first folding plates 63 and 64 in the initial state, after the first folding plates 63 and 64 reach the folding position and expand outward to complete the folding process, the second folding plates 61 and 62 can move directly downward while maintaining their initial position in the second direction. Unlike the prior art, they do not need to first fold inward from the outer avoidance position and then move downward.

[0067] In an optional embodiment, the first folding plates 63 and 64 in their initial state can be placed close together, eliminating the need for the first folding plates 63 and 64 to close together in order to pass through the presser foot. They can then move directly downwards through the opening of the fixing plate 1, the opening of the presser foot 2, and the bag opening of the fabric 3 to fold the bag. The first folding plates 63 and 64 can also be placed opposite each other with a gap between them; this invention does not limit this to either.

[0068] like Figure 3 As shown, in one embodiment of the present invention, the second folding plate moving assembly includes: a second folding plate longitudinal moving assembly 603, which drives the second folding plates 61 and 62 to move in the vertical direction; and a second folding plate lateral moving assembly 604, which drives the second folding plates 61 and 62 to move in the second direction.

[0069] like Figure 4 As shown, in one embodiment of this utility model, the fixed plate moving assembly 601 includes a fixed plate longitudinal moving cylinder 6011. The piston rod 6012 of the fixed plate longitudinal moving cylinder 6011 is connected to the fixed plate 1, driving the fixed plate 1 to move in the up-down direction. Optionally, the fixed plate longitudinal moving cylinder 6011 can be a double piston rod cylinder, with the piston rod connected to the fixed plate 1 via a bracket 6014 that spans across the fixed plate 1.

[0070] The first folding plate moving assembly 602 includes a first folding plate lateral moving cylinder 6021. The piston rod 6022 of the first folding plate lateral moving cylinder 6021 is connected to the first folding plates 63 and 64, driving the first folding plates 63 and 64 to move along a first direction. Optionally, the first folding plate lateral moving cylinder 6021 can be a double piston rod cylinder.

[0071] By setting the fixed plate longitudinal moving cylinder 6011 and the first folding plate transverse moving cylinder 6021 as double piston rod cylinders, the piston rod of the cylinder can provide more stable support for the components connected to the end of the piston rod while still performing its driving function.

[0072] The operation of the bag-folding device of this embodiment will now be described in detail with reference to the accompanying drawings. Figure 4 Only the first folding plate lateral movement cylinder 6021 connected to one side of the first folding plate 63 of the pair of first folding plates 63 and 64 opposite in the first direction is shown, but according to Figure 3 It is known that there is also a first folding plate lateral movement cylinder 6021 connected to the first folding plate 64 on its opposite side, and the first folding plate 64 can be driven to move in the first direction in the same mechanism as the first folding plate 63 side.

[0073] The following explanation only covers the actions on the side of the first fold plate 63. For example... Figure 4 As shown, specifically, the first folding plate moving assembly 602 includes a first folding plate lateral moving cylinder 6021. The end of the piston rod 6022 of the first folding plate lateral moving cylinder 6021 is drivenly connected to the first folding plate 63. Therefore, the first folding plate lateral moving cylinder 6021 can drive the first folding plate 63 to move inward or outward in a first direction via the piston rod 6022.

[0074] exist Figure 5 and Figure 6 Only one side of the pair of opposing second folding plates 61, 62 in the second direction, and the second folding plate moving assembly connected to that side of the second folding plate 61, are shown. However, according to... Figure 2 It is known that there is also a second folding plate 62 and a second folding plate moving assembly connected to the second folding plate 62 on its opposite side, and the second folding plate 62 can be driven to move in the same mechanism as the second folding plate 61 side.

[0075] The following explanation only describes the actions on the side of the second folding plate 61. For example... Figure 5 and 6As shown, the second folding plate moving assembly includes a second folding plate longitudinal moving assembly 603 and a second folding plate lateral moving assembly 604. The second folding plate longitudinal moving assembly 603 includes a second folding plate longitudinal moving cylinder 6031, and the second folding plate lateral moving assembly 604 includes a second folding plate lateral moving cylinder 6041. The second folding plate moving assembly further includes: a second folding plate longitudinal moving cylinder bracket 6034, which fixes the second folding plate longitudinal moving cylinder 6031 and is connected to the piston rod 6042 of the second folding plate lateral moving cylinder 6041; and a second folding plate bracket 6033, which fixes the second folding plates 61 and 62 and is connected to the second folding plate longitudinal moving cylinder 603. The piston rod 6032 of the second folding plate is connected to the second folding plate longitudinal moving cylinder support 6034, which is provided with a guide rail 6036 extending in the vertical direction. A slider 6035 is fixed on the second folding plate support 6033, and the slider 6035 slides in cooperation with the guide rail 6036. The piston rod 6042 of the second folding plate transverse moving cylinder 6041 drives the second folding plate longitudinal moving cylinder support 6034 to move in the second direction, and the piston rod 6032 of the second folding plate longitudinal moving cylinder 6031 drives the second folding plate support 6033 to move in the vertical direction. Optionally, the second folding plate transverse moving cylinder 6041 can be a double piston rod cylinder.

[0076] By specifically configuring the second folding plate moving assembly in this embodiment, the distance the second folding plate moves in the vertical direction and the second direction for folding the fabric can be accurately controlled. Furthermore, the longitudinal movement direction of the second folding plate can be stably controlled through the cooperation of the guide rail and the slider.

[0077] In a possible embodiment, the folding device further includes a fabric presser foot 2 for holding the fabric 3 before and after the folding process, the fabric presser foot 2 being configured to press the fabric 3 from above to hold the fabric 3 on the worktable 4.

[0078] The fabric presser foot helps stabilize the fabric before folding, making folding more precise. Furthermore, it can cooperate with the retaining component (described later) after folding to hold the folded edge in place.

[0079] In a possible embodiment, the folding device further includes a retaining component 5 that holds the folded edges after the two pairs of folding plates have completed the folding process.

[0080] By having a retaining component 5, the risk of the fabric rebounding after being folded, thus preventing folding failure, is avoided.

[0081] The following is a detailed explanation of the process of folding fabric using a folding bag device. It should be noted that before folding, the bag opening machine has already cut the bag opening of fabric 3, and fabric 3 is then conveyed to the fabric folding bag processing station and held on the worktable 4.

[0082] Step 101: The fixed plate moving assembly 601 drives the first folding plates 63 and 64 and the second folding plates 61 and 62 to descend simultaneously from the initial position. Specifically, the fixed plate longitudinal moving cylinder 6011 drives the fixed plate 1 to descend via the piston rod 6012 and the bracket 6014, so that the first folding plates 63 and 64, which are indirectly connected to the fixed plate 1, descend to the folding position, and the second folding plates 61 and 62 approach the corresponding folding position.

[0083] Step 102: The first folding plate moving assembly 602 drives the first folding plates 63 and 64 to move outward in the first direction to fold the fabric. Specifically, the first folding plate lateral moving cylinder 6021 drives the first folding plates 63 and 64 to move outward in the first direction to fold the fabric via the piston rod 6022.

[0084] Step 103: The second folding plates 61 and 62 are driven to descend to the folding position by the second folding plate longitudinal moving assembly 603. Specifically, the second folding plate longitudinal moving cylinder 6031 drives the second folding plate bracket 6033 to descend via the piston rod 6032. The second folding plates 61 and 62, which are fixed to the second folding plate bracket 6033, descend to the folding position under the sliding cooperation of the slider 6035 fixed to the second folding plate bracket 6033 and the guide rail 6036 provided on the second folding plate longitudinal moving cylinder bracket 6034.

[0085] Step 104: The second folding plate 61 and 62 are driven to move outward in the second direction by the second folding plate lateral moving assembly 604 to fold the fabric. Specifically, the second folding plate lateral moving cylinder 6041 drives the second folding plate longitudinal moving cylinder bracket 6034 to move outward in the second direction via the piston rod 6042, thereby causing the second folding plates 61 and 62, which are indirectly connected to the second folding plate longitudinal moving cylinder bracket 6034, to move outward to fold the fabric.

[0086] Step 105: The second folding plate 61 and 62 are driven to move inward in the second direction by the second folding plate lateral moving assembly 604, so that the second folding plate 61 and 62 return to their initial position in the second direction. Specifically, the second folding plate lateral moving cylinder 6041 drives the second folding plate longitudinal moving cylinder bracket 6034 to move inward in the second direction via the piston rod 6042, thereby causing the second folding plate 61 and 62, which are indirectly connected to the second folding plate longitudinal moving cylinder bracket 6034, to move inward.

[0087] Step 106: The second folding plates 61 and 62 are driven to rise to the folding position by the second folding plate longitudinal moving assembly 603. Specifically, the second folding plate longitudinal moving cylinder 6031 drives the second folding plate bracket 6033 to rise via the piston rod 6032. The second folding plates 61 and 62, which are fixed to the second folding plate bracket 6033, rise to the initial position under the sliding cooperation of the slider 6035 fixed to the second folding plate bracket 6033 and the guide rail 6036 provided on the second folding plate longitudinal moving cylinder bracket 6034.

[0088] Step 107: The first folding plate moving assembly 602 drives the first folding plates 63 and 64 to move inward in the first direction so that the first folding plates 63 and 64 return to their initial position in the first direction. Specifically, the first folding plate lateral moving cylinder 6021 drives the first folding plates 63 and 64 to move inward in the first direction via the piston rod 6022.

[0089] Step 108: The first folding plates 63 and 64 and the second folding plates 61 and 62 are simultaneously raised to the initial position by the fixed plate moving assembly 601. Specifically, the fixed plate longitudinal moving cylinder 6011 drives the fixed plate 1 to rise via the piston rod 6012 and the bracket 6014, so that the first folding plates 63 and 64 and the second folding plates 61 and 62, which are indirectly connected to the fixed plate 1, rise simultaneously.

[0090] In the above description, the initial state refers to the positional relationship of each folding plate of the bag folding device before the fabric folding process begins, and the initial position refers to the position of each folding plate of the bag folding device before the fabric folding process begins. Operators can preset specific initial states and initial positions as needed, as long as the two pairs of folding plates can complete the above-mentioned fabric folding action. This utility model does not limit this.

[0091] In the embodiments described above, the second folding plate moving assembly includes a second folding plate longitudinal moving assembly 603 and a second folding plate lateral moving assembly 604. Alternatively, the second folding plate moving assembly can be replaced by a rotation drive assembly to achieve the movement of the second folding plate in the vertical direction and the second direction.

[0092] Specifically, in one possible implementation, the second folding plate moving assembly is a rotation drive assembly 605 that drives the second folding plates 61 and 62 to rotate in a counterclockwise or clockwise direction.

[0093] exist Figure 7Only one side of a pair of opposing second folding plates 61, 62 in the second direction is shown, along with a rotary drive 605 (rotary drive cylinder 6051 and rotating member 6054) connected to that side of the folding plate 61. However, it is understood that a second folding plate 62 and a rotary drive 605 (rotary drive cylinder 6051 and rotating member 6054) connected to the second folding plate 62 also exist on its opposite side, and the second folding plate 62 can be driven to move in the same mechanism as the side of the second folding plate 61.

[0094] The following explanation only covers the actions on the side of folding plate 61. For example... Figure 7 As shown, the rotary drive assembly 605 includes a rotary drive cylinder 6051 and a rotating member 6054. The rotary drive cylinder 6051 is fixed to the fixing plate 1 in a manner that allows it to rotate around its base end. The rotating member 6054 has a shaft 6053 extending along a first direction at its lower end. The two ends of the shaft 6053 are engaged with the two ends of the opening in the fixing plate 1 in the first direction. The upper part of the rotating member 6054 is hinged to the piston rod 6052 of the rotary drive cylinder 6051. The second folding plate 61 is fixed to the rotating member 6054 in a manner that its lower end is inclined toward the inside of the opening. The piston rod 6052 of the rotary drive cylinder 6051 drives the rotating member 6054 to rotate around the shaft 6053.

[0095] Specifically, since the rotating member 6054 has a shaft 6053 extending in the first direction at its lower part, and the two ends of the shaft 6053 are engaged with the opening of the fixing plate 1 at both ends in the first direction, when the rotating member 6054 rotates counterclockwise via the piston rod 6052, the second folding plate 61 is also rotated counterclockwise on the side of the rotating member 6054 away from the rotating member 6051, which is arranged with its lower end inclined towards the inside of the opening. This allows the second folding plate 61 to move outward while moving downward, thus performing the action of folding the fabric outward.

[0096] Similarly, when the rotary drive cylinder 6051 drives the rotating component 6054 to rotate clockwise via the piston rod 6052, the second folding plate 61 provided on the rotating component 6054 also moves clockwise and leaves the folded cloth position under the drive of the rotating component 6054.

[0097] In other words, the rotation drive component 605 can perform the same work as the second folding plate longitudinal movement component 603 and the second folding plate lateral movement component 604, and the second folding plate does not need to perform lifting and lateral movement separately, but only needs to perform rotation.

[0098] This allows for a further simplification of the bag folding device's structure, a reduction in the time required for fabric folding, and an improvement in production efficiency.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A bag-folding device for folding fabric to form a bag opening, characterized in that, include: A pair of first folding plates, which are opposite each other in a first direction, fold the fabric outward in the first direction; A pair of second folding plates, which are opposite each other in a second direction orthogonal to the first direction, are arranged on both sides of the pair of first folding plates in the second direction, and fold the fabric outward in the second direction; A pair of first folding plate moving components, each connected to a pair of first folding plates, drive the first folding plates to move in the first direction; A pair of second folding plate moving components are respectively connected to a pair of second folding plates, driving the second folding plates to move in the vertical direction and in the second direction; A fixed plate, on which the first folding plate moving assembly and the second folding plate moving assembly are fixed, and having an opening for the first folding plate and the second folding plate to pass through; and A fixed plate moving assembly drives the fixed plate to move vertically. Viewed from the first direction, the first fold plate is configured in a roughly convex shape. In the initial state before folding the fabric, a pair of second fold plates are located above the shoulders on both sides of the first fold plate, and the lower ends of the second fold plates do not protrude outward from the shoulders.

2. The bag folding device according to claim 1, characterized in that, The second folding plate moving assembly includes: The second folding plate longitudinal moving assembly drives the second folding plate to move in the vertical direction; and The second folding plate lateral moving assembly drives the second folding plate to move along the second direction.

3. The bag folding device according to claim 1, characterized in that, The second folding plate moving component is a rotation drive component that drives the second folding plate to rotate in a counterclockwise or clockwise direction.

4. The bag folding device according to claim 1, characterized in that, The fixed plate moving assembly includes a fixed plate longitudinal moving cylinder, the piston rod of which is connected to the fixed plate and drives the fixed plate to move in the up and down direction.

5. The bag folding device according to claim 4, characterized in that, The cylinder for longitudinal movement of the fixed plate is a double piston rod cylinder, and the piston rod is connected to the fixed plate via a bracket that spans across the fixed plate.

6. The bag folding device according to claim 1, characterized in that, The first folding plate moving assembly includes a first folding plate lateral moving cylinder, the piston rod of the first folding plate lateral moving cylinder is connected to the first folding plate, and drives the first folding plate to move along the first direction.

7. The bag folding device according to claim 6, characterized in that, The first folding plate lateral movement cylinder is a double piston rod cylinder.

8. The bag folding device according to claim 2, characterized in that, The second folding plate longitudinal moving assembly includes a second folding plate longitudinal moving cylinder. The second folding plate lateral movement assembly includes a second folding plate lateral movement cylinder. The second folding plate moving assembly also includes: The second folding plate longitudinal movement cylinder bracket is fixed with the second folding plate longitudinal movement cylinder and connected to the piston rod of the second folding plate transverse movement cylinder; and The second folding plate bracket has the second folding plate fixed to it and is connected to the piston rod of the longitudinal movement cylinder of the second folding plate. A guide rail extending in the vertical direction is provided on the second folding plate longitudinal moving cylinder bracket, and a slider is fixed on the second folding plate bracket, the slider slidingly engaging with the guide rail. The piston rod of the second folding plate lateral movement cylinder drives the second folding plate longitudinal movement cylinder bracket to move along the second direction. The piston rod of the second folding plate longitudinal movement cylinder drives the second folding plate bracket to move in the vertical direction.

9. The bag folding device according to claim 8, characterized in that, The second folding plate lateral movement cylinder is a double piston rod cylinder.

10. The bag-folding device according to claim 3, characterized in that, The rotary drive assembly includes a rotary drive cylinder and a rotating component. The rotary drive cylinder is fixed to the fixing plate in a manner that allows it to rotate around the base end. The rotating component has a shaft extending along the first direction at its lower end, the two ends of which engage with the openings of the fixed plate at their respective ends in the first direction. The upper part of the rotating component is hinged to the piston rod of the rotary drive cylinder. The second folding plate is fixed to the rotating component by means that its lower end is inclined inward toward the opening. The piston rod of the rotary drive cylinder drives the rotating component to rotate around the axis.

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