Metal detection device for sanitary towel production

Abstract

The utility model discloses a metal detection device for sanitary towel production, which comprises a metal detector body, a detection channel is arranged in the metal detector body, an upper conveyor belt driven by a first power wheel and a lower conveyor belt driven by a second power wheel are arranged in the detection channel in a penetrating manner, and the upper conveyor belt is positioned above the lower conveyor belt. An interlayer used for conveying sanitary napkins is formed between the upper conveying belt and the lower conveying belt, an air suction box is installed at the position, below the lower conveying belt, in the detection channel, the bottom face of the lower conveying belt is attached to the top face of the air suction box, and the two ends of the air suction box stretch out of the two sides of the metal detector body. Therefore, the sanitary napkins, the upper conveying belt and the lower conveying belt are synchronously conveyed, the problem that when the sanitary napkins penetrate through the metal detection machine body, every two adjacent sanitary napkins extrude each other to cause dislocation is effectively solved, meanwhile, the air suction box is completely made of non-metal materials, and the metal detection procedure cannot be affected.

Description

Technical Field

[0001] The utility model relates to a production device for sanitary napkins, in particular to a metal detection device for sanitary napkin production. Background Art

[0002] The sanitary napkin production line is composed of a variety of equipment, including a large amount of metal equipment. During the operation of the production line, metal debris is prone to fall onto the sanitary napkin products (this situation is relatively rare for equipment that has been running in for a long time, but when replacing new equipment or repairing the equipment, it is easy to have debris when it needs to be run-in again). If such metal debris is not discovered in time and is eventually used by the user, it is easy to cause harm to the user. Therefore, it is necessary to add a metal detection device to the production line.

[0003] At present, during the production process of sanitary napkin production lines, several sanitary napkins are first connected to form a product belt, which is then transported on the conveyor belt on the production line. Therefore, when passing through the metal detection device, the product belt also enters in the form of a product belt. After being detected by the metal detection device and found to be correct, it is cut by the subsequent cutting process. However, since the metal detection device cannot contain objects made of metal materials, only the conveyor belt itself passes through the metal detection device. This causes the product belt to easily squeeze between adjacent sanitary napkins when passing through the metal detection device, resulting in inaccurate cutting position during the cutting process, or even cutting the sanitary napkin itself, causing the sanitary napkin to be damaged. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a metal detection device for sanitary napkin production.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A metal detection device for sanitary napkin production includes a metal detector body, a detection channel is provided in the metal detector body, an upper conveyor belt driven by a first power wheel and a lower conveyor belt driven by a second power wheel are passed through the detection channel, the upper conveyor belt is located above the lower conveyor belt, and an interlayer for transporting sanitary napkins is formed between the upper conveyor belt and the lower conveyor belt, a suction box made entirely of non-metallic material is installed in the detection channel below the lower conveyor belt, the bottom surface of the lower conveyor belt is in contact with the top surface of the suction box, and both ends of the suction box extend from both sides of the metal detector body.

[0007] The metal detection device also includes an upper guide wheel group. The front end of the upper conveyor belt is arranged between the upper guide wheel group and the first power wheel, and is fixedly connected to the end of the upper conveyor belt to form a closed circulation loop.

[0008] The metal detection device also includes a lower guide wheel group. The front end of the lower conveyor belt is arranged between the lower guide wheel group and the second power wheel and is fixedly connected to the end of the lower conveyor belt to form a closed circulation loop.

[0009] The lower conveyor belt is provided with a plurality of arranged through hole groups.

[0010] The transport speeds of the upper conveyor belt and the lower conveyor belt are consistent.

[0011] The beneficial effects of the utility model are as follows: the utility model is provided with a detection channel in the metal detector body, and an upper conveyor belt driven by a first power wheel and a lower conveyor belt driven by a second power wheel are passed through the detection channel, the upper conveyor belt is located above the lower conveyor belt, and a sandwich layer for transporting sanitary napkins is formed between the upper conveyor belt and the lower conveyor belt, and a suction box made entirely of non-metallic material is installed below the lower conveyor belt in the detection channel, the bottom surface of the lower conveyor belt is in contact with the top surface of the suction box, and the two ends of the suction box extend from both sides of the metal detector body. The sanitary napkin is transported by the upper conveyor belt and the lower conveyor belt through the metal detector body for metal detection process, during which it is adsorbed by the suction box, thereby ensuring that the sanitary napkin is transported synchronously with the upper and lower conveyor belts, effectively solving the problem of mutual squeezing and misalignment between adjacent sanitary napkins when the sanitary napkin passes through the metal detector body. At the same time, the suction box is made entirely of non-metallic material and will not affect the progress of the metal detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the present utility model. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0015] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0016] Some embodiments of the present invention are described below with reference to the accompanying drawings.

[0017] Reference Figure 1A metal detection device for sanitary napkin production includes a metal detector body 1, a detection channel is provided in the metal detector body 1, an upper conveyor belt 3 driven by a first power wheel 2 and a lower conveyor belt 5 driven by a second power wheel 4 are passed through the detection channel, the upper conveyor belt 3 is located above the lower conveyor belt 5, and an interlayer (such as a metal detector body 1) for transporting sanitary napkins is formed between the upper conveyor belt 3 and the lower conveyor belt 5. Figure 1 As shown in A in the figure, which is the transport direction of sanitary napkins), a suction box 6 made entirely of non-metallic material is installed in the detection channel below the lower conveyor belt 5. The bottom surface of the lower conveyor belt 5 is in contact with the top surface of the suction box 6, and the two ends of the suction box 6 extend from both sides of the metal detector body 1. The sanitary napkin is transported by the upper conveyor belt 3 and the lower conveyor belt 5 through the metal detector body 1 for metal detection. During the process, it is adsorbed by the suction box 6 to ensure that the sanitary napkin is transported synchronously with the upper conveyor belt 3 and the lower conveyor belt 5, effectively solving the problem of misalignment caused by mutual squeezing between adjacent sanitary napkins when the sanitary napkin passes through the metal detector body 1. At the same time, the suction box 6 is made entirely of non-metallic material and will not affect the metal detection process.

[0018] The metal detection device also includes an upper guide wheel group 7. The front end of the upper conveyor belt 3 is arranged between the upper guide wheel group 7 and the first power wheel 2, and is fixedly connected to the end of the upper conveyor belt 3 to form a closed circulation loop.

[0019] The metal detection device also includes a lower guide wheel group 8. The front end of the lower conveyor belt 5 is arranged between the lower guide wheel group 8 and the second power wheel 4, and is fixedly connected to the end of the lower conveyor belt 5 to form a closed circulation loop.

[0020] Theoretically, the transport speeds of the upper conveyor belt 3 and the lower conveyor belt 5 are required to be consistent. In practice, due to installation errors, adjustment errors, etc., the transport speeds of the upper conveyor belt 3 and the lower conveyor belt 5 are different. When the sanitary napkin is transported on the upper conveyor belt 3 and the lower conveyor belt 5, the two sides of the sanitary napkin will be pulled in different directions, or even displaced. This is one of the reasons why two adjacent sanitary napkins are squeezed and misaligned with each other (in addition, it may also be that sanitary napkins of different weights are produced, such as night use is relatively heavier than day use. During the metal inspection process, the heavier sanitary napkin will cause the lower conveyor belt 5 to sink a certain amount, thereby increasing the interlayer between the upper conveyor belt 3 and the lower conveyor belt 5, resulting in the upper conveyor belt 3 and the lower conveyor belt 5 being unable to clamp the sanitary napkin well, which makes the sanitary napkin more likely to move). This is generally related to the friction between the sanitary napkin and the upper conveyor belt 3 and the lower conveyor belt 5.

[0021] For example, the upper conveyor belt 3 is faster than the lower conveyor belt 5, that is, the upper conveyor belt 3 will move forward relative to the lower conveyor belt 5. When the friction between the sanitary napkin and the upper conveyor belt 3 is greater than that with the lower conveyor belt 5, and the magnitude of the friction is sufficient to pull the sanitary napkin, the sanitary napkin will be pulled forward by the upper conveyor belt 3.

[0022] The lower conveyor belt 5 is provided with a plurality of arranged through-hole groups. When the suction box 6 sucks air, part of the suction force acts on the lower conveyor belt 5, and the other part acts directly on the sanitary napkin through the through-hole group (this force is much greater than the friction pulling effect between the upper conveyor belt 3 or the lower conveyor belt 5 and the sanitary napkin), so that the sanitary napkin fits tightly with the lower conveyor belt 5, which can ensure that the lower conveyor belt 5 and the sanitary napkin run synchronously, thereby fundamentally ensuring that the positions of two adjacent sanitary napkins will not change.

[0023] In this utility model, the term "plurality" refers to two or more, unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items. Terms such as "install," "connect," "connect," and "fix" should be understood broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0024] It should be noted that when an element is referred to as being "assembled to," "mounted to," "fixed to," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0025] Throughout this specification, terms such as "one embodiment," "some embodiments," or "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0026] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A metal detection device for sanitary napkin production, comprising a metal detector body (1), characterized in that The metal detector body (1) is provided with a detection channel, and an upper conveyor belt (3) driven by a first power wheel (2) and a lower conveyor belt (5) driven by a second power wheel (4) are provided in the detection channel. The upper conveyor belt (3) is located above the lower conveyor belt (5), and a sandwich layer for transporting sanitary napkins is formed between the upper conveyor belt (3) and the lower conveyor belt (5). A suction box (6) made entirely of non-metallic material is installed below the lower conveyor belt (5) in the detection channel. The bottom surface of the lower conveyor belt (5) is in contact with the top surface of the suction box (6), and both ends of the suction box (6) extend from both sides of the metal detector body (1).

2. The metal detection device for sanitary napkin production according to claim 1, characterized in that: The metal detection device further comprises an upper guide wheel group (7), the front end of the upper conveyor belt (3) is arranged between the upper guide wheel group (7) and the first power wheel (2), and is fixedly connected to the end of the upper conveyor belt (3), forming a closed circulation loop.

3. The metal detection device for sanitary napkin production according to claim 1, characterized in that: The metal detection device further comprises a lower guide wheel group (8), the front end of the lower conveyor belt (5) is arranged between the lower guide wheel group (8) and the second power wheel (4), and is fixedly connected to the end of the lower conveyor belt (5), forming a closed circulation loop.

4. The metal detection device for sanitary napkin production according to claim 1, characterized in that The lower conveyor belt (5) is provided with a plurality of arranged through hole groups.

5. The metal detection device for sanitary napkin production according to claim 1, characterized in that The transport speeds of the upper conveyor belt (3) and the lower conveyor belt (5) are consistent.

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