A process and apparatus for making a pet diaper harness

Abstract

This invention relates to the field of pet diaper harness technology, specifically disclosing a manufacturing process and apparatus for pet diaper harnesses, including the following steps: Step S1: Using a harness manufacturing apparatus, the harness manufacturing apparatus has two manufacturing lines, and the two manufacturing lines operate in parallel to manufacture harnesses; Step S2: On the first line, half of the non-woven fabric is prepared and glued with elastic strips, and by folding and cutting, the number of harness semi-finished products is doubled; Step S3: On the second line, the other half of the non-woven fabric is prepared, and by folding, cutting, and edge-binding with the harness semi-finished products, the harness is formed after edge-binding. This process solves the problems of low efficiency and long material replacement time of traditional single-line harness manufacturing. By operating two parallel production lines simultaneously, coupled with a quick-connect material cutting device, production interruption time is reduced.

Description

Technical Field

[0001] This application relates to the field of pet diaper harness technology, and specifically discloses a manufacturing process and apparatus for pet diaper harnesses. Background Technology

[0002] Pet harness-style diapers are based on regular pet diapers or sanitary pants, but with added harnesses to prevent slippage. They are specially designed for active pets that are prone to shifting or falling off, balancing leak prevention with secure hold. Please refer to the instruction manual for details. Figure 3 .

[0003] Traditional baby carriers are made by wrapping cotton layers into a strip. These carriers often lack elasticity. Therefore, existing baby carrier diapers often have added elastic ribs to achieve elasticity.

[0004] As a result, the manufacturing process becomes significantly more difficult. Since the elastic ribs are non-deformable materials, they are usually wrapped around non-woven fabrics to make the harness. This manufacturing process is complex and the overall production efficiency is too low. Therefore, this invention provides a manufacturing process and apparatus for a harness for pet diapers to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that the traditional manufacturing process of elastic shoulder straps is complex and inefficient.

[0006] To achieve the above objectives, the present invention provides the following basic solution: A manufacturing process for a baby carrier used in pet diapers includes the following steps: Step S1: Use a shoulder strap manufacturing device, which has two manufacturing lines that manufacture shoulder straps in parallel. Step S2: Prepare half of the non-woven fabric and attach it to the elastic strip for the first line. By folding and cutting, double the number of shoulder strap semi-finished products are formed. Step S3: The second line prepares the other half of the non-woven fabric by folding and cutting it in half and edge-binding it with the semi-finished shoulder strap. After edge-binding, the shoulder strap is formed.

[0007] Furthermore, in step S2, the two rolls of nonwoven fabric are replaced by a material breaking device. After the nonwoven fabric runs to the carding roller group, it enters the alignment device for the first alignment, and then enters the glue dispensing position for the first glue dispensing. Several elastic ribs are glued to the surface of the nonwoven fabric and the glue dispensing position. Then, it is folded for the first time, and then cut into two pieces to form two half-finished straps with elastic ribs glued on. They enter the alignment device again for alignment, and then run to the glue dispensing position for glue dispensing. Finally, they run to the wrapping plate to wait for the other half of the nonwoven fabric on the second line.

[0008] Furthermore, in step S3, the two rolls of nonwoven fabric are replaced by a cutting device. After the nonwoven fabric runs to the carding roller group, it is aligned with the position of the guide roller. Then it enters the cutter to split the other half of the nonwoven fabric in two. It enters the guide roller again for alignment. After alignment, it enters the glue dispensing position for glue dispensing. Then it runs to the wrapping plate to perform edge binding with the semi-finished straps on the first running line. After the edge binding is completed, it is output to obtain the finished straps.

[0009] Furthermore, in step S1, the two production lines maintain a consistent operating speed, controlled at 15-25 m / min, the line spacing is adjusted to 8-12 cm, and the tension during device operation is controlled at 30-50 N.

[0010] Further, in step S2, the nonwoven fabric is selected as spunbond nonwoven fabric with a basis weight of 30-50 g / m², a width of 40-60 cm, and a thickness of 0.3-0.5 mm; the elastic ribs are selected as spandex elastic yarns with a diameter of 0.8-1.2 mm, the elongation of each elastic rib is controlled at 150%-200%, and the elastic recovery rate is ≥95%; hot melt adhesive is used for dispensing, the adhesive temperature is controlled at 160-180℃, the dispensing amount is 0.8-1.2 g / m², and the dispensing spacing is 5-8 mm; the first fold is a symmetrical fold along the center line of the nonwoven fabric, and the folding deviation is ≤0.5 mm. The cutting speed is synchronized with the production line speed, the cutting accuracy is ≤0.3 mm, and the width of a single semi-finished harness after cutting is 20-30 cm, and the length is preset to 30-50 cm according to the pet's body size; the correction accuracy of the two correction devices is ±0.3 mm, and the correction response time is ≤0.5 s.

[0011] Furthermore, in step S3, the specifications of the non-woven fabric on this line are consistent with those on the first line; the folding is also symmetrical along the center line, with a folding deviation of ≤0.5mm; after cutting, the width of a single piece of non-woven fabric is 20-30cm and the length matches the semi-finished strap; the parameters of the two correction devices are consistent with those on the first line; the temperature of the hot melt adhesive used for edging is controlled at 150-170℃, the amount of adhesive applied is 1.0-1.5g / ㎡, the edging width is 1.5-2.5cm, the edging pressure is controlled at 0.3-0.5MPa, and the edging time is 0.8-1.2s; after the edging is completed, the output speed is synchronized with the production line speed, the width of the finished strap is 2.0-3.0cm, the length is 30-50cm, and the elastic stretch is 5-10cm.

[0012] Furthermore, the replacement response time of the disconnecting material device is ≤3s, the overlap length at the joint is 5-8cm, and the amount of adhesive applied at the overlap is increased to 1.5-2.0g / ㎡ to ensure that the joint is firm and does not delaminate; after the nonwoven fabric runs to the carding roller group, the rotation speed of the carding roller group is 80-120r / min, and the carding gap is 0.5-1.0mm.

[0013] This application also discloses a device for manufacturing a baby carrier for pet diapers, used in the above-mentioned process.

[0014] Includes the following components: Base: Used for constructing two production lines; Nonwoven fabric receiver installed on the base: enables replacement of nonwoven fabric; An elastic rib storage device installed on the base: enables the storage and automatic retrieval of elastic ribs; A material disconnection device installed on the base: connected to the nonwoven fabric receiver to enable nonwoven fabric output; The carding roller assembly mounted on the base is used for carding nonwoven fabrics. A guide device installed on the base: ensures that the position of the non-woven fabric is consistent with the set position; The dispensing device mounted on the base enables simultaneous dispensing of non-woven fabric and elastic ribs at the same location; The folding cutter set on the base splits the non-woven fabric in two to form two semi-finished straps with elastic ribs attached. The wrapping plate set on the base: enables the edge binding of the other half of the non-woven fabric and the semi-finished shoulder strap.

[0015] Furthermore, the base is made of 304 stainless steel.

[0016] The principle and effect of this solution are as follows: 1. Compared with existing technologies, the synchronous operation of two parallel production lines with a material disconnection device allows for rapid replacement, significantly shortening the production cycle, increasing output per unit time, and reducing production costs.

[0017] 2. Compared with existing technologies, this process ensures product precision and consistency. The accuracy of correction, cutting, and folding deviation are all controlled within a reasonable range, ensuring that the straps are of uniform specifications, without offset or burrs, thus improving the product qualification rate.

[0018] 2. Compared with existing technologies, the use of suitable non-woven fabric and elastic strips controls the elastic stretch and recovery rate, making the harness fit the pet's body shape without feeling restrictive, while having sufficient tensile strength, making it less prone to breakage and delamination, and with a longer service life.

[0019] 2. Compared with the prior art, the present invention has the following features: the process clearly defines the equipment parameters and operating standards for each stage, reduces material waste, equipment failure and rework rate, reduces production losses, and achieves large-scale and standardized production.

[0020] 2. Compared with the existing technology, the present invention standardizes the operation of cutting materials, combing, and edge binding, simplifies the production process, reduces the difficulty of operation for operators, and facilitates batch production control. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0022] Figure 1 A schematic flowchart of a manufacturing process for a pet diaper harness according to an embodiment of this application is shown. Figure 2 This invention provides a schematic diagram of the structure of a carrier manufacturing device for pet diapers according to an embodiment of the present application. Figure 3 This illustration shows a schematic diagram of the structure of an existing baby carrier in a manufacturing process and apparatus for pet diapers according to an embodiment of this application. Detailed Implementation

[0023] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0024] The reference numerals in the accompanying drawings include: 1. Diaper; 2. First carrying strap; 3. Non-woven fabric receiver; 4. Cutting material device; 5. Second carrying strap; 6. Carding roller group; 7. Dispenser; 8. Straightening device; 9. Elastic rib storage container; 10. Folding cutter; 11. Wrapping board.

[0025] Implementation, for example Figures 1-3 As shown: A manufacturing process for a baby carrier used in pet diapers includes the following steps: Step S1: Use a shoulder strap making device. The shoulder strap making device has two production lines, which are used in parallel to make shoulder straps. In step S1, the two production lines run at the same speed, controlled at 15-25m / min, the line spacing is adjusted to 8-12cm, and the tension of the device during operation is controlled at 30-50N.

[0026] The replacement response time of the material breaking device 4 is ≤3s, the overlap length at the joint is 5-8cm, and the amount of glue applied at the overlap is increased to 1.5-2.0g / ㎡ to ensure that the joint is firm and does not delaminate; after the nonwoven fabric runs to the carding roller group 6, the rotation speed of the carding roller group 6 is 80-120r / min, and the carding gap is 0.5-1.0mm.

[0027] Step S2: For the first line, half of the nonwoven fabric is glued with elastic ribs. By folding and cutting, the number of shoulder strap semi-finished products is doubled. In step S2, the two rolls of nonwoven fabric are replaced by the splicing device 4. After the nonwoven fabric runs to the carding roller group 6, it enters the alignment device 8 for the first alignment, and then enters the glue dispensing position for the first glue dispensing. Several elastic ribs are glued to the surface of the nonwoven fabric and glued to the glue dispensing position. Then, it is folded for the first time. After folding, it is cut into two pieces to form two shoulder strap semi-finished products with elastic ribs glued on. They enter the alignment device 8 again for alignment, and then run to the glue dispensing position for glue dispensing. They run to the wrapping plate 11 to wait for the other half of the nonwoven fabric on the second line.

[0028] In step S2, the nonwoven fabric used is spunbond nonwoven fabric with a basis weight of 30-50 g / m², a width of 40-60 cm, and a thickness of 0.3-0.5 mm; the elastic ribs are made of spandex elastic yarn with a diameter of 0.8-1.2 mm, and the elongation of each elastic rib is controlled at 150%-200%, with an elastic recovery rate ≥95%; hot melt adhesive is used for dispensing, with the adhesive temperature controlled at 160-180℃, the dispensing amount at 0.8-1.2 g / m², and the dispensing spacing at 5-8 mm; the first fold is a symmetrical fold along the center line of the nonwoven fabric, with a folding deviation ≤0.5 mm. The cutting speed is synchronized with the production line speed, the cutting accuracy is ≤0.3 mm, and the width of a single semi-finished shoulder strap after cutting is 20-30 cm, with the length preset to 30-50 cm according to the pet's body size; the correction accuracy of the two correction devices 8 is ±0.3 mm, and the correction response time is ≤0.5 s.

[0029] Step S3: The second line prepares the other half of the nonwoven fabric by folding and cutting it and edge-binding the semi-finished shoulder strap. After edge-binding, the shoulder strap is formed. In step S3, the two rolls of nonwoven fabric are replaced by the cutting device 4. After the nonwoven fabric runs to the carding roller group 6, it is aligned with the position of the guide device 8. Then it enters the cutter to split the other half of the nonwoven fabric in two. It enters the guide device 8 again for alignment. After alignment, it enters the glue dispensing position for glue dispensing. Then it runs to the wrapping plate 11 and edge-binds the semi-finished shoulder strap on the first running line. After the edge-binding is completed, it is output to obtain the finished shoulder strap.

[0030] In step S3, the specifications of the nonwoven fabric on this line are the same as those on the first line; the folding is also symmetrical along the center line, with a folding deviation of ≤0.5mm; after cutting, the width of a single piece of nonwoven fabric is 20-30cm and the length matches the semi-finished strap; the parameters of the two correction devices are the same as those on the first line; the temperature of the hot melt adhesive used for edging is controlled at 150-170℃, the amount of adhesive applied is 1.0-1.5g / ㎡, the edging width is 1.5-2.5cm, the edging pressure is controlled at 0.3-0.5MPa, and the edging time is 0.8-1.2s; after the edging is completed, the output speed is synchronized with the production line speed, the width of the finished strap is 2.0-3.0cm, the length is 30-50cm, and the elastic stretch is 5-10cm.

[0031] The above process is achieved using a harness manufacturing device for pet diapers 1, such as... Figure 2 As shown, the system includes the following components: a base for constructing two production lines; a nonwoven fabric receiver 3 mounted on the base for replacing the nonwoven fabric; an elastic rib storage unit 9 mounted on the base for storing and automatically retrieving the elastic ribs; a cutting device 4 mounted on the base, connected to the nonwoven fabric receiver 3 for dispensing the nonwoven fabric; a carding roller group 6 mounted on the base for carding the nonwoven fabric; a deviation corrector 8 mounted on the base to ensure the nonwoven fabric position matches the set position; an adhesive applicator 7 mounted on the base for applying adhesive to both the nonwoven fabric and the elastic ribs at the same position; a folding cutter 10 mounted on the base to divide the nonwoven fabric in half to form two half of the shoulder strap semi-finished product with the elastic ribs attached; and a wrapping plate 11 mounted on the base for edge wrapping the other half of the nonwoven fabric and the shoulder strap semi-finished product. The base is made of 304 stainless steel.

[0032] First line: such as Figure 3 As shown, to the right of the dividing line, firstly, two rolls of nonwoven fabric are received by the two nonwoven fabric receiving devices 3. The two rolls of nonwoven fabric are replaced by the splicing device 4. Then, the nonwoven fabric is moved to the carding roller group 6 through the splicing device 4. The carding roller group 6 sorts the nonwoven fabric and then enters the alignment device 8. At this time, the alignment device 8 mainly makes the nonwoven fabric neat and corrects its position. Then, it enters the glue dispensing device 7. The glue dispensing device 7 applies glue to the nonwoven fabric. Then, the elastic rib storage device 9 automatically pops out the elastic ribs and sticks them to the nonwoven fabric. Then, it enters the folding cutter 10. The folding cutter 10 divides the nonwoven fabric into two pieces to form two half-finished straps with elastic ribs. Then, it enters the next alignment device 8 for position alignment. Then, it moves to the next glue dispensing device 7 and applies glue to the glue position. Finally, it moves to the wrapping plate 11 to wait for the other half of the nonwoven fabric on the second line.

[0033] The second line: as Figure 3As shown, similarly, the two rolls of nonwoven fabric are replaced by the cutting and splicing device 4. After the nonwoven fabric runs to the carding roller group 6, it is aligned with the position of the guide device 8, and then enters the cutter to split the other half of the nonwoven fabric in two. It then enters the next guide device 8 for alignment. After alignment, it enters the glue dispensing device 7 for glue dispensing, and then runs to the wrapping plate 11 to perform edge binding with the semi-finished carrier straps on the first running line. After the edge binding is completed, it is output to obtain the finished carrier straps, namely the first carrier strap 2 and the second carrier strap 5. The first carrier strap 2 and the second carrier strap 5 are manually spliced ​​and assembled with the diaper 1 to form the carrier-type pet diaper 1.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A process for making a pet diaper strap, characterized by, Includes the following steps: Step S1: Use a shoulder strap manufacturing device, which has two manufacturing lines that manufacture shoulder straps in parallel. Step S2: Prepare half of the non-woven fabric and attach it to the elastic strip for the first line. By folding and cutting, double the number of shoulder strap semi-finished products are formed. Step S3: The second line prepares the other half of the non-woven fabric by folding and cutting it in half and edge-binding it with the semi-finished shoulder strap. After edge-binding, the shoulder strap is formed.

2. The process for making a pet diaper strap according to claim 1, wherein, In step S2, the two rolls of nonwoven fabric are replaced by a material breaking device. After the nonwoven fabric runs to the carding roller group, it enters the alignment device for the first alignment, and then enters the glue dispensing position for the first glue dispensing. Several elastic ribs are glued to the surface of the nonwoven fabric and the glue dispensing position. Then it is folded for the first time, and then cut into two pieces to form two half-finished straps with elastic ribs glued on. They enter the alignment device again for alignment, and then run to the glue dispensing position for glue dispensing. Finally, they run to the wrapping plate to wait for the other half of the nonwoven fabric on the second line.

3. The process for making a pet diaper strap according to claim 2, wherein, In step S3, the two rolls of nonwoven fabric are replaced by a cutting device. After the nonwoven fabric runs to the carding roller group, it is aligned with the position of the correction device. Then it enters the cutter to split the other half of the nonwoven fabric in two. It enters the correction device again for alignment. After alignment, it enters the glue dispensing position for glue dispensing. Then it runs to the wrapping plate to perform edge binding with the semi-finished shoulder straps on the first running line. After the edge binding is completed, it is output to obtain the finished shoulder straps.

4. The process for making a pet diaper strap according to claim 3, wherein, In step S1, the two production lines maintain a consistent operating speed of 15-25 m / min, the line spacing is adjusted to 8-12 cm, and the tension during operation is controlled at 30-50 N.

5. The process for making a pet diaper strap according to claim 4, wherein, In step S2, the nonwoven fabric used is spunbond nonwoven fabric with a basis weight of 30-50 g / m², a width of 40-60 cm, and a thickness of 0.3-0.5 mm; the elastic ribs are made of spandex elastic yarn with a diameter of 0.8-1.2 mm, and the elongation of each elastic rib is controlled at 150%-200%, with an elastic recovery rate ≥95%; hot melt adhesive is used for dispensing, with the adhesive temperature controlled at 160-180℃, the dispensing amount at 0.8-1.2 g / m², and the dispensing spacing at 5-8 mm; the first fold is a symmetrical fold along the center line of the nonwoven fabric, with a folding deviation ≤0.5 mm. The cutting speed is synchronized with the production line speed, the cutting accuracy is ≤0.3 mm, and the width of a single semi-finished harness after cutting is 20-30 cm, and the length is preset to 30-50 cm according to the pet's body size; the correction accuracy of the two correction devices is ±0.3 mm, and the correction response time is ≤0.5 s.

6. The process for making a pet diaper strap according to claim 5, wherein, In step S3, the specifications of the nonwoven fabric on this line are the same as those on the first line; the folding is also symmetrical along the center line, with a folding deviation of ≤0.5mm; after cutting, the width of a single piece of nonwoven fabric is 20-30cm and the length matches the semi-finished strap; the parameters of the two correction devices are the same as those on the first line; the temperature of the hot melt adhesive used for edging is controlled at 150-170℃, the amount of adhesive applied is 1.0-1.5g / ㎡, the edging width is 1.5-2.5cm, the edging pressure is controlled at 0.3-0.5MPa, and the edging time is 0.8-1.2s; after the edging is completed, the output speed is synchronized with the production line speed, and the width of the finished strap is 2.0-3.0cm, the length is 30-50cm, and the elastic stretch is 5-10cm.

7. The process for making a pet diaper strap according to claim 1, wherein, The replacement response time of the material breaking device is ≤3s, the overlap length at the joint is 5-8cm, and the amount of adhesive applied at the overlap is increased to 1.5-2.0g / ㎡ to ensure that the joint is firm and does not delaminate; after the nonwoven fabric runs to the carding roller group, the rotation speed of the carding roller group is 80-120r / min, and the carding gap is 0.5-1.0mm.

8. An apparatus for manufacturing a pet diaper harness for implementing a pet diaper harness manufacturing process according to any one of claims 1 to 7, characterized in that, Includes the following components: Base: Used for constructing two production lines; Nonwoven fabric receiver installed on the base: enables replacement of nonwoven fabric; An elastic rib storage device installed on the base: enables the storage and automatic retrieval of elastic ribs; A material disconnection device installed on the base: connected to the nonwoven fabric receiver to enable nonwoven fabric output; The carding roller assembly mounted on the base is used for carding nonwoven fabrics. A guide device installed on the base: ensures that the position of the non-woven fabric is consistent with the set position; The dispensing device mounted on the base enables simultaneous dispensing of non-woven fabric and elastic ribs at the same location; The folding cutter set on the base splits the non-woven fabric in two to form two semi-finished straps with elastic ribs attached. The wrapping plate set on the base: enables the edge binding of the other half of the non-woven fabric and the semi-finished shoulder strap.

9. The apparatus according to claim 8, wherein The base is made of 304 stainless steel.

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