Transverse bandage cutting device of quilt cover machine

Abstract

A transverse bandage cutting device of a quilt cover machine comprises a guide roller driving device, the guide roller driving device is used for driving a knife roller to rotate, a bandage cutting blade is arranged on the knife roller, and the bandage cutting blade is a U-shaped blade or a V-shaped blade or an L-shaped blade or a concave blade; and the bandage cutting blade is used for cutting the edge of the quilt cover into a fracture and incompletely cutting off the fracture, and is used for taking the cloth which is not cut off as a bandage. Original cloth of the quilt cover is used as materials of the binding bands, on one hand, the cloth can be saved, and on the other hand, the procedure of connecting the binding bands and the quilt cover can be omitted.

Description

Technical Field

[0001] The utility model belongs to the field of quilt cover production equipment, in particular to a transverse cutting strap device of a quilt cover machine. Background Art

[0002] At present, the entrance of non-woven quilt covers is designed with straps to facilitate tying the entrance after putting the quilt in to prevent the quilt cover from falling out during use. The quilt cover generally has four sides, three of which are sealed by ultrasonic heat sealing. There are mature bed sheet and quilt cover production equipment on the market. Generally, the cutting and binding devices are set on both sides of the equipment (such as Figure 6 As shown). When in use, the two rolls of raw materials are compounded, the width of the raw materials is the length of a single quilt cover, and the cutting length is the width of a single quilt cover. In this way, the width of the raw materials cannot be changed when the size of the quilt cover product is certain. Because the width of the front-end raw material mother roll is much larger than the length of a single quilt cover, and smaller than the sum of the lengths of two quilt covers, it is just close to the length + width of the quilt cover, so after the mother roll is slit into two rolls, the narrow roll cannot be used, resulting in waste. In traditional quilt cover production, excess fabric on the edge is often treated as waste and cut off, which not only leads to a large amount of waste of usable materials, but also increases production costs. How to effectively utilize these edge materials and transform them into part of the product has become an urgent problem to be solved. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a device for cutting the binding straps of a quilt cover machine. The utility model uses the original fabric of the quilt cover (the edge material that needs to be cut off in the prior art) as the material of the binding straps, which can save fabric on the one hand and save the process of connecting the binding straps with the quilt cover on the other hand.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A transverse strap cutting device for a quilt cover machine comprises a guide roller driving device, the guide roller driving device is used to drive a knife roller to rotate, a strap cutting blade is arranged on the knife roller, and the strap cutting blade is a U-shaped blade, a V-shaped blade, an L-shaped blade or a concave blade;

[0006] The strap cutting blade is used to cut a fracture on the edge of the quilt without completely cutting it off, so that the uncut fabric can be used as a strap.

[0007] Preferably, there are multiple knife rollers, and the multiple knife rollers are connected by a coupling.

[0008] Preferably, a bottom knife is provided under each knife roller.

[0009] Preferably, the blade of the bandage cutting blade is a discontinuous blade, which is used to cut the quilt into discontinuous fractures.

[0010] The quilt cover with a self-binding strap structure comprises a first layer of cloth and a second layer of cloth, wherein the first layer of cloth and the second layer of cloth overlap each other, one side of the first layer of cloth and the second layer of cloth is not sealed, and the other sides are of a sealed structure; the first layer of cloth and the second layer of cloth are provided with a strap at the unsealed side, and the strap is cut from the original cloth of the first layer of cloth and the second layer of cloth.

[0011] The utility model can achieve the following beneficial effects:

[0012] The utility model utilizes the original fabric of the quilt cover (the edge material that needs to be cut off in the prior art) as the material of the binding belt, which can save fabric on one hand and save the process of connecting the binding belt with the quilt cover on the other hand.

[0013] In the prior art, when considering cutting the straps horizontally, it is easy to think that the quilt cover is placed along the same direction (the straps of two adjacent quilt covers are separated and facing the same direction), so the overlap between the cutting position and the subsequent cutting position must be very high, which is almost impossible to achieve for fabric. To achieve this, the straps must be cut wider to leave enough margin for the subsequent cutting, and the remaining margin is to be cut off and taken away as waste. The utility model overcomes the above technical defects and adopts a back-to-back arrangement (the straps of two adjacent quilt covers are close together, equivalent to back-to-back), which solves the above-mentioned cutting problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is an equivalent diagram of the structure of the strap cutting blade of the utility model;

[0017] Figure 3 This is the front view of the quilt cover with a self-contained binding strap structure of the utility model (the binding strap is not spread out);

[0018] Figure 4 This is a front view of the quilt cover with its own strap structure of the utility model (the straps have been spread out);

[0019] Figure 5 This is a side view of the quilt cover with a self-binding strap structure of the utility model;

[0020] Figure 6 This is the existing quilt cover structure diagram.

[0021] In the figure: guide roller driving device 1, driving knife roller 2, strap cutting blade 3, coupling 4, bottom knife 5, frame 6, strap 7, ultrasonic welding line 8, first layer of cloth 9, second layer of cloth 10. DETAILED DESCRIPTION

[0022] The preferred solution is Figures 1 to 5 As shown, the transverse strap cutting device of the quilt cover machine includes a guide roller driving device 1, the guide roller driving device 1 is used to drive the knife roller 2 to rotate, the knife roller 2 is provided with a strap cutting blade 3, and the strap cutting blade 3 is a U-shaped blade, a V-shaped blade, an L-shaped blade, or a concave blade;

[0023] The bandage cutting blade 3 is used to cut a notch on the edge of the quilt without completely cutting it off, so that the uncut fabric can be used as a bandage.

[0024] like Figure 2 As shown, there are at least five styles of the bandage cutting blade 3, and the styles of the bandage cutting blade 3 can be regarded as equivalent. The purpose of the bandage cutting blade 3 is to cut one or more cuts on the edge of the quilt. The effect is as follows Figure 3 As shown, the cut quilt cover is not completely cut off, forming a belt structure connected to the quilt cover body, and the belt structure is pulled out to form a binding structure, thereby avoiding the need to install a separate binding.

[0025] Preferably, the blade of the bandage cutting blade 3 is a discontinuous blade, which is used to cut the quilt into discontinuous fractures. In this way, the bandage can still be connected to the quilt body, and when in use, the bandage can be pulled out manually.

[0026] This non-continuous blade can be called a dotted line blade. Based on the optimization design of this design, such as changing the dotted line point spacing or the length of each dotted line point, the strength of the strap tearing can be changed. For two adjacent quilt covers, the stretching of the strap position before the material is cut is also different. If there are too few dotted line points connected, it is possible that the material is pulled apart or the two layers are staggered before the material is cut. The design and attempts made to ensure the cutting position, the horizontal sealing position, and the staggered strap layer also fall within the scope of protection of this utility model.

[0027] Furthermore, there are multiple knife rollers 2, and the multiple knife rollers 2 are connected by a coupling 4 to cut out multiple strapping structures.

[0028] Further, a bottom knife 5 is provided below each knife roller 2. The bottom knife 5 is mainly matched with the knife roller 2 to cut the quilt cover. The bottom knife 5 is a rotating roller or a fixed plane cutting board.

[0029] Working principle of this device:

[0030] Production process: unwinding and laminating two layers of raw materials → ultrasonic longitudinal heat sealing on both sides → ultrasonic transverse heat sealing on the third side → transverse cutting of binding tape → longitudinal folding → cutting → transverse folding → finished product packaging.

[0031] The raw material passes through the knife roller 2 and the bottom knife 5, and the bandage cutting blade 3 cuts the raw material into a U-shaped fracture. The bottom knife can be a rotating roller or a fixed cutting board. The edge of the bandage cutting blade 3 is designed with a notch of a certain width and spacing, and the raw material will not be cut at the notch. The purpose is to keep the existing position of the bandage so that it will not be randomly scattered after being completely cut off. When in use, it can be disengaged by just pulling it lightly.

[0032] The bandage cutting blade 3 is driven by a servo motor, and the power is transmitted to each bandage cutting blade 3 through a coupling to achieve synchronous rotation. When the raw material reaches the position where the bandage is to be cut, the bandage cutting blade 3 rotates one circle to cut out the bandage, and then stops to wait for the next bandage to be cut. The cut shape here is U-shaped, and it will be cut into two L-shaped shapes from the middle of the U shape towards the rear end, and at the same time, two adjacent products will be cut.

[0033] A quilt cover with a self-binding strap structure comprises a first layer of cloth and a second layer of cloth, the first layer of cloth and the second layer of cloth overlap, one side of the first layer of cloth and the second layer of cloth is not sealed, and the other side is a sealed structure; the first layer of cloth and the second layer of cloth are provided with a strap on the unsealed side, and the strap is cut from the original fabric of the first layer of cloth and the second layer of cloth. This product mainly uses the original fabric of the quilt cover as the material of the strap, which can save fabric on one hand, and save the process of connecting the strap with the quilt cover on the other hand.

[0034] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A transverse strap cutting device for a quilt cover machine, comprising a guide roller driving device (1), the guide roller driving device (1) being used to drive a knife roller (2) to rotate, and characterized in that: A band cutting blade (3) is provided on the knife roller (2), and the band cutting blade (3) is a U-shaped blade, a V-shaped blade, an L-shaped blade, or a concave blade; The bandage cutting blade (3) is used to cut a fracture on the edge of the quilt without completely cutting it off, so that the uncut fabric can be used as a bandage.

2. The transverse cutting strap device of the quilt cover machine according to claim 1 is characterized in that: There are multiple knife rollers (2), and the multiple knife rollers (2) are connected via a coupling (4).

3. The transverse cutting strap device of the quilt cover machine according to claim 2 is characterized in that: A bottom knife (5) is provided below each knife roller (2).

4. The transverse cutting strap device of the quilt cover machine according to claim 2, characterized in that: The blade of the bandage cutting blade (3) is a discontinuous blade and is used to cut the quilt into discontinuous fractures.

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