An automatic packaging device for specific flexible dental floss

Abstract

The present application discloses an automatic packaging device for specific flexible dental floss, comprising: a material receiving module, a conveying and folding module, and a packaging module, wherein the packaging module comprises a conveyor belt; the material receiving module is constructed to receive the specific flexible dental floss transmitted by an injection molding machine; the conveying and folding module comprises a vacuum suction channel, a negative pressure device, and a dispensing mechanism, wherein one end of the vacuum suction channel is connected to the material receiving module, and the other end of the vacuum suction channel is connected to the dispensing mechanism, wherein the specific flexible dental floss passes through the vacuum suction channel from the material receiving module and enters the dispensing mechanism through the negative pressure device, and the dispensing mechanism is configured to dispense the specific flexible dental floss onto the conveyor belt, wherein the specific flexible dental floss dispensed onto the conveyor belt is in a folded state to be packaged through the cooperation of the vacuum suction channel, the negative pressure device, and the dispensing mechanism, wherein the automatic packaging device realizes unmanned connection between the injection molding machine and the packaging device, and automatically and efficiently receives finished dental floss products from multiple injection molding machines.

Description

Technical Field

[0001] The present application relates to the field of automated equipment, and in particular to an automated packaging device for specific flexible dental floss. Background Art

[0002] Developed countries in Europe and America have always been leading the trend of oral care, and related products are very rich and varied. Specific flexible dental floss products with handles at both ends are particularly popular in the market. This specific flexible dental floss product has the following advantages: Compared with the pure line dental floss roll, the specific flexible dental floss product has a handle that can be held by hand, which conforms to the habits of more users. In addition, ordinary handheld dental floss sticks only have one section of line, and specific flexible dental floss may contain multiple sections of line, which can be used separately for multiple dental lesions at a time, that is, one dental lesion can only use one line point, avoiding cross infection when using dental floss sticks. Due to the structural characteristics of this specific flexible dental floss, it will naturally gather together when it is packed in a bag, so the smaller the bag space, the more it can ensure that the dental floss will not be tangled after moving in the bag later, and the compact independent packaging can save space and be more beautiful when repackaging.

[0003] In the prior art, after the flexible dental floss product is finished by the injection molding machine, the dental floss is collected manually and manually fed into the packaging machine one by one. However, this manual packaging method has the following disadvantages, such as disadvantage 1: it is difficult to separate the dental floss beautifully by manual collection after it comes off the injection molding machine, and the dental floss is easily entangled and knotted, which is not easy to count. It is difficult to pack multiple dental flosses together in boxes or bags for sale, and they can only be packaged separately before packaging. The old-fashioned packaging machine requires manual feeding of the dental floss one by one into the feeding port of the packaging machine for packaging. Disadvantage 2: The efficiency of manual collection of dental floss is low, the failure rate of empty packages or multiple packages is high, and it is difficult to ensure hygiene and safety when touched by hands.

[0004] Therefore, there is an urgent need in the art to develop an automatic packaging device for specific flexible dental floss, which realizes unmanned connection between the injection molding machine and the packaging equipment, and efficiently packages the finished dental floss products from multiple injection molding machines. Summary of the invention

[0005] The purpose of the present application is to provide an automatic packaging device for specific flexible dental floss. The automatic packaging device realizes unmanned connection between an injection molding machine and a packaging device, and efficiently packages finished dental floss products from multiple injection molding machines.

[0006] The present application provides an automatic packaging device for specific flexible dental floss, comprising: a material receiving module, a conveying and folding module, and a packaging module, wherein the packaging module comprises a conveyor belt;

[0007] The receiving module is configured to receive a specific flexible dental floss delivered by an injection molding machine;

[0008] The conveying and folding module comprises a vacuum suction channel, a negative pressure device and a dispensing mechanism, wherein the vacuum suction channel comprises a suction hose portion, one end of which is in communication with the receiving module, and the other end of which is in communication with the dispensing mechanism, and the negative pressure device allows the specific flexible dental floss to pass through the suction hose portion from the receiving module into the dispensing mechanism, and the dispensing mechanism is configured to dispense the specific flexible dental floss onto the conveyor belt, wherein the cooperation of the vacuum suction channel, the negative pressure device and the dispensing mechanism allows the specific flexible dental floss dispensed onto the conveyor belt to be in a folded state to be packaged;

[0009] The specific flexible dental floss comprises a plurality of handle parts, and two adjacent handle parts are connected by a flexible cord.

[0010] In another preferred example, the negative pressure device includes a vacuum pump, a vacuum connecting pipe, and a vacuum pipe interface arranged on the distribution mechanism.

[0011] In another preferred example, the handle portion is made of plastic material.

[0012] In another preferred example, the material receiving module includes a docking flange configured to dock with the injection molding machine, and the docking flange is provided with a plurality of material receiving ports matching with the discharge port of the injection molding machine.

[0013] In another preferred example, the suction hose portion includes a plurality of suction hoses, the plurality of suction hoses are connected to the plurality of material receiving ports, and the number of the plurality of suction hoses is the same as the number of the plurality of material receiving ports.

[0014] In another preferred embodiment, the diameters of the plurality of suction hoses are d, the maximum width of the plurality of handles in any direction is h, and the minimum length between any two adjacent handles is l, wherein h<d<l.

[0015] In another preferred embodiment, h<d<4h

[0016] In another preferred embodiment, the diameters of the plurality of suction hoses are d=14 mm-20 mm.

[0017] In another preferred embodiment, h=5mm-10mm.

[0018] In another preferred embodiment, said l=5cm-10cm.

[0019] In another preferred example, the vacuum suction channel further includes a non-hose dispensing portion, the non-hose dispensing portion includes a plurality of non-hose dispensing sections, the plurality of non-hose dispensing sections are connected to the plurality of suction hoses, and the plurality of non-hose dispensing sections are arranged in the dispensing mechanism.

[0020] In another preferred example, the diameter of the non-hose dispensing section is substantially the same as the diameter of the suction hose.

[0021] In another preferred example, the material receiving module includes one or more material receiving modules, the vacuum suction channel is one or more groups of vacuum suction channels, each material receiving module is respectively connected to each group of vacuum suction channels, and the distribution mechanism includes a vacuum selection valve, which selectively allows a specific flexible dental floss of a group of vacuum suction channels to fall onto the conveyor belt of the packaging module.

[0022] In another preferred example, when there are multiple groups of vacuum suction channels, the distribution mechanism further includes a merging and dispensing section that is simultaneously connected to outlets of the multiple groups of vacuum suction channels.

[0023] In another preferred example, the conveying and folding module further comprises a detection device, which is disposed on the dispensing mechanism and is used for detecting in which group of vacuum suction channels the specific flexible dental floss exists.

[0024] In another preferred example, the detection module includes a plurality of through-beam sensors.

[0025] In another preferred example, the material receiving module also includes an anti-blocking mechanism, which includes a door opening cylinder and a door opening mechanism, and the door opening cylinder and the door opening mechanism are configured so that when material blockage occurs in other modules, the door opening cylinder and the door opening mechanism cooperate to prevent specific flexible dental wire from entering the vacuum suction channel.

[0026] In another preferred example, the dispensing mechanism further comprises a first valve, a second valve and a third valve which are sequentially arranged downstream of the vacuum selection valve, and the first valve, the second valve and the third valve are constructed to determine the timing when the specific flexible dental floss falls.

[0027] In another preferred example, the automatic packaging equipment further includes a central control module, and the central control module is configured to control the operation of each module.

[0028] It should be understood that within the scope of the present invention, the above-mentioned technical features of the present invention and the technical features specifically described below (such as embodiments) can be combined with each other to form a new or preferred technical solution. Due to space limitations, they will not be described one by one here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. It should be understood that the drawings described below are only some implementation examples of the present invention, and ordinary technicians in this field can also obtain other implementation examples based on these drawings without paying creative work.

[0030] Figure 1 is a schematic diagram of an automatic packaging device for specific flexible dental floss according to a first embodiment of the present application;

[0031] Figure 2 is a schematic structural diagram of an automatic packaging device for specific flexible dental floss according to the first embodiment of the present application;

[0032] Figure 3 This is a structural schematic diagram of a part of the conveying and folding module of the automatic packaging equipment for specific flexible dental floss according to the first embodiment of the present application.

[0033] Figure 4 yes Figure 3 The side view of the structure;

[0034] Figure 5 yes Figure 4 The cross-sectional structure diagram of AA;

[0035] Figure 6 is a structural schematic diagram of an embodiment of a material receiving module of an automatic packaging device for specific flexible dental floss according to the first embodiment of the present application;

[0036] Figure 7 yes Figure 6 A side view of the structure;

[0037] Figure 8 yes Figure 6 Another side view of the structure diagram;

[0038] Figure 9-10 is a schematic diagram of different embodiments of unfolded specific flexible dental floss according to the present application;

[0039] Fig.11 is a schematic diagram of a particular flexible dental floss packaged according to the present application.

[0040] In each of the accompanying drawings, the symbols are as follows:

[0041] 1- Material receiving module;

[0042] 11- first material receiving module;

[0043] 111-first docking flange;

[0044] 112-first material receiving port;

[0045] 113-door opening mechanism;

[0046] 114-door opening cylinder;

[0047] 2- conveying and folding module;

[0048] 21- vacuum suction channel;

[0049] 211-suction hose part;

[0050] 2111-first suction hose;

[0051] 212-non-hose batching part;

[0052] 2121 - first non-hose dispensing section;

[0053] 21211 - first non-hose dispensing section inlet;

[0054] 2130-Merge batching section;

[0055] 22- Allocation agency;

[0056] 220-vacuum selection valve;

[0057] 221- first valve;

[0058] 222- second valve;

[0059] 223-the third valve;

[0060] 224- vacuum pipe interface;

[0061] 3- Packaging module;

[0062] 31- conveyor belt;

[0063] 4- Central control module;

[0064] 5-Specific flexible dental floss;

[0065] 51-handle part;

[0066] h - the maximum width of the handle in any direction. DETAILED DESCRIPTION

[0067] After extensive and in-depth research, the inventor has developed an automatic packaging device for specific flexible dental floss for the first time. The automatic packaging device uses the principle of vacuum suction to achieve unmanned connection between the injection molding machine and the packaging device. The packaging device automatically receives finished dental floss from multiple injection molding machines. Through the cooperation of the vacuum suction channel, vacuum pump and distribution mechanism of the conveying folding module, the specific flexible dental floss distributed to the conveyor belt is in a folded state to be packaged, so that the dental floss will not be entangled with each other during the process of being conveyed to the packaging module of the automatic packaging device, and the dental floss in the folded state to be packaged is convenient for the packaging module to package the flexible dental floss one by one in an orderly manner. At the same time, the function of detecting the presence or absence of a laser sensor is used, combined with the software and hardware structure of the distribution mechanism, to basically solve the problem of empty or multiple packages.

[0068] In the following description, many technical details are provided to help readers better understand the present application. However, those skilled in the art can understand that the technical solution claimed in the present application can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0069] the term

[0070] As used herein, "specific flexible dental floss" and "specific flexible dental floss" are used interchangeably;

[0071] It should be noted that in the application documents of this patent, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one" do not exclude the existence of other identical elements in the process, method, article or device including the elements. In the application documents of this patent, if it is mentioned that an action is performed according to an element, it means that the action is performed at least according to the element, which includes two situations: performing the action only according to the element, and performing the action according to the element and other elements. Expressions such as multiple, multiple, and multiple include 2, 2 times, 2 kinds, and more than 2, more than 2 times, and more than 2 kinds.

[0072] Special flexible dental floss

[0073] The specific flexible dental floss comprises a plurality of handles, two handles are connected by a flexible cord, and generally contains 2 to 4 sections of cord (reference Figure 9-11 ), such a flexible dental floss can be used separately in multiple tooth positions to avoid cross infection. The multiple handles are made of injection-molded plastic materials, and the cords are fixed in the handles through an injection molding machine.

[0074] Folded state

[0075] In the present application, the folded state of the dental floss refers to the state in which the specific flexible dental floss is independently and freely stacked when it is fed into the conveyor belt from the non-hose dispensing area of ​​the dispensing mechanism, such as the folded state of the present application. Fig.11 The particular flexible dental floss shown in FIG. 1 is in a folded state, wherein the folded state is relative to the unfolded state ( Fig. 9 and Fig.10 A description of the dental floss being in an unrolled state).

[0076] Automatic packaging equipment for special flexible dental floss

[0077] It includes: a material receiving module 1, a conveying and folding module 2, a packaging module 3 and a central control module 4, wherein the packaging module 3 includes a conveyor belt 31;

[0078] The receiving module 1 is configured to receive a specific flexible dental floss delivered by an injection molding machine;

[0079] The conveying and folding module 2 includes a vacuum suction channel 21, a negative pressure device and a dispensing mechanism 22. The vacuum suction channel includes a suction hose portion 211 and a non-hose dispensing portion 212. The non-hose dispensing portion 212 is arranged in the dispensing mechanism 22. One end of the suction hose portion 211 is communicated with the receiving module 1, and the other end of the suction hose portion 211 is communicated with the non-hose dispensing portion 212 in the dispensing mechanism 22. The negative pressure device allows the specific flexible dental floss to pass through the suction hose portion 211 from the receiving module 1 into the non-hose dispensing portion 212 in the dispensing mechanism 22. The dispensing mechanism 22 is configured to distribute the specific flexible dental floss to the conveyor belt 31 through the non-hose dispensing portion 212, wherein the cooperation of the vacuum suction channel 21, the negative pressure device and the dispensing mechanism 22 enables the specific flexible dental floss distributed to the conveyor belt to be in a folded state to be packaged.

[0080] Material receiving module

[0081] The material receiving module 1 includes a docking flange configured to dock with the injection molding machine, wherein the docking flange is provided with a plurality of material receiving ports matching the material outlet of the injection molding machine, one end of the material receiving port is connected with the material outlet of the injection molding machine, and the other end of the material receiving port is connected with the conveying and folding module 2;

[0082] The material receiving module also includes an anti-blocking mechanism, which includes a door opening cylinder and a door opening mechanism. The door opening cylinder and the door opening mechanism are configured so that when material blockage occurs in other modules, the door opening cylinder and the door opening mechanism cooperate to prevent specific flexible dental wire from entering the vacuum suction channel.

[0083] Conveyor folding module

[0084] The conveying and folding module 2 is arranged between the material receiving module 1 and the packaging module 3. The conveying and folding module 2 includes a vacuum suction channel 21, a negative pressure device and a distribution mechanism 22 and a detection device. The negative pressure device includes a vacuum pump, a vacuum connecting pipe (not shown) and a vacuum pipe interface 224, wherein the vacuum pipe interface 224 is arranged on the distribution mechanism 22, one end of the vacuum connecting pipe is connected to the vacuum pump, and the other end of the vacuum connecting pipe is connected to the vacuum pipe interface 224; the cooperation of the various components of the conveying and folding module makes the specific flexible dental floss distributed to the conveyor belt in a folded state to be packaged.

[0085] in:

[0086] Vacuum suction channel

[0087] The vacuum suction channel 21 runs through the conveying and folding module 2, and the vacuum suction channel 21 includes a suction hose portion 211 and a non-hose dispensing portion 212. The suction hose portion 21 includes multiple suction hoses, and the non-hose dispensing portion 212 includes multiple non-hose dispensing sections. The non-hose dispensing portion 212 is arranged in the dispensing mechanism 22. Preferably, the multiple non-hose dispensing sections are arranged in parallel with each other, and preferably, the multiple non-hose dispensing sections are arranged in a row.

[0088] Preferably, there may be multiple groups of vacuum suction channels 21. Preferably, the suction hose is a transparent hose, for example, the suction hose may be a transparent plastic hose.

[0089] In order to prevent the specific flexible dental floss product from getting tangled in the process of being transported from the receiving port to the dispensing mechanism 22, the diameter of the multiple suction hoses is d, the maximum width of the multiple handles of the specific flexible dental floss in any direction is h, and the minimum length between any two adjacent handles is l, wherein h<d<l.

[0090] Preferably, h<d<4h.

[0091] Preferably, the diameter of the plurality of suction hoses is d=14 mm-20 mm.

[0092] Preferably, h is in the range of 5mm-10mm.

[0093] Preferably, said l is in the range of 5cm-10cm.

[0094] Preferably, the suction hose diameter is approximately the same as the non-hose dispensing section diameter.

[0095] Allocation Agency

[0096] The dispensing mechanism 22 is provided with a non-tube dispensing portion of the vacuum suction channel 21 , and the dispensing mechanism 22 is used to dispense the received specific flexible dental floss onto the conveyor belt of the packaging module through the non-tube dispensing portion.

[0097] The dispensing mechanism 22 also includes a plurality of vacuum selection valves 220, and a first valve 221, a second valve 222 and a third valve 223 sequentially arranged downstream of the vacuum selection valve 220; wherein the first valve 221, the second valve 222 and the third valve 223 are configured to control the opening or closing of the vacuum suction channel arranged in the dispensing mechanism, "open" means that the flexible dental floss falls smoothly in the vacuum suction channel, and "closed" means that the flexible dental floss falls on a nearby valve.

[0098] When there are multiple groups of vacuum material suction channels, multiple vacuum selection valves are controlled by the central control module to select which group of vacuum material suction channels the flexible dental floss in passes through the hose material suction part of the vacuum material suction channel and enters the non-hose material dispensing part of the vacuum material suction channel arranged in the dispensing mechanism and directly falls on the first valve 221. The first valve 221 is configured to open the group of vacuum material suction channels with material when detecting which group of vacuum material suction channels has material, and keep the group of vacuum material suction channels without material in a closed state.

[0099] Preferably, when there are multiple groups of vacuum suction channels, multiple non-hose dispensing sections of each group of vacuum suction channels are arranged in a row, and each non-hose dispensing section of each group of vacuum suction channels is parallel to each other. The vacuum suction channel also includes a combined dispensing section where the non-hose dispensing sections of multiple groups of vacuum suction channels arranged in the distribution mechanism are merged, and the combined dispensing section includes multiple combined dispensing sections 2130 (i.e., the non-hose dispensing sections in multiple groups are merged). Preferably, after the second valve 222 is the combined dispensing section, i.e., the second valve 222 and the third valve 223 control the time of a specific flexible dental floss entering the merged combined dispensing section. Preferably, when the vacuum suction channel includes a first group of vacuum suction channels and a second group of vacuum suction channels, a non-hose dispensing section in the first group of vacuum suction channels arranged in the distribution mechanism, a non-hose dispensing section in the second group of vacuum suction channels, and a combined dispensing section 2130 in the combined dispensing section form a Y-shaped section.

[0100] Preferably, the vacuum suction channel includes a first group of vacuum suction channels and a second group of vacuum suction channels. The vacuum selection valve opens which group (the first group or the second group) of vacuum suction channels, and the vacuum pump sucks the specific flexible dental floss from the material receiving module into the group of vacuum suction channels. Since the vacuum selection valve controls the feeding of the first group of vacuum suction channels and the second group of vacuum suction channels, the timing may be any interval between 0.5 seconds and tens of seconds, and the opening timing of the third valve is immediately after the conveyor belt in the packaging module ends a beat. The time of this beat is terminated by the last material-filled workstation of a group of products. The interval time of opening the third valve may be greater than the gap between the two openings of the first valve, so a second valve is provided in the middle for storage and waiting.

[0101] Detection device

[0102] The detection device is used to detect which group of vacuum suction channels contains a specific flexible dental floss product. Preferably, the detection device is a through-beam sensor, which is installed between the suction hose portion and the vacuum selection valve. Preferably, the sensor can also be set at other locations that need to be detected, such as near the first valve.

[0103] The present invention has at least the following advantages:

[0104] (a) The automatic packaging equipment for specific flexible dental floss of the present application utilizes the principle of vacuum suction to realize unmanned connection between the packaging machine and the injection molding machine. The packaging machine automatically receives the finished dental floss from multiple injection molding machines, achieving very high packaging efficiency;

[0105] (b) The automatic packaging device for specific flexible dental floss of the present application utilizes the function of detecting the presence or absence of a laser sensor, combined with the design of the dispensing mechanism, to achieve orderly dispensing of the dental floss to the packaging machine one by one, basically solving the problem of empty or multiple packages;

[0106] (c) The automatic packaging device for specific flexible dental floss of the present application avoids the problem of dental floss entanglement in the process of transporting the specific flexible dental floss to the conveyor belt of the packaging machine through the ingenious structural design of the conveying folding module and the dispensing mechanism;

[0107] (d) The automatic packaging device for specific flexible dental floss of the present application can keep the dental floss running independently in the material suction, material transportation and packaging stages, thus avoiding the possibility of entanglement and knotting;

[0108] (e) The automatic packaging equipment for specific flexible dental floss of the present application utilizes a photoelectric sensor at the entrance of the bag former to control the rhythm of packaging well, further monitor empty bags, blockages, roll up the flexible dental floss and achieve compact packaging.

[0109] To make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that these are only some examples that the present invention may take for the reader, but are not intended to limit the scope of the present invention.

[0110] Example 1

[0111] See also Figure 1-Figure 4 The present application provides an automatic packaging device for a specific flexible dental floss, including a receiving module 1, a conveying and folding module 2, a packaging module 3 and a central control module 4, wherein the packaging module 3 includes a conveyor belt 31; the receiving module 1 is constructed to receive the specific flexible dental floss transmitted by an injection molding machine; the central control module 4 is configured to control the operation of each module.

[0112] The conveying and folding module 2 includes a vacuum suction channel 21, a distribution mechanism 22 and a negative pressure device. The vacuum suction channel runs through the conveying and folding module. The vacuum suction channel 21 includes a suction hose portion 211 and a non-hose dispensing portion 212. The non-hose dispensing portion 212 is arranged in the distribution mechanism 22. The vacuum suction channel 21 is used to convey the flexible dental floss to the distribution mechanism by continuous or intermittent suction from one or more receiving modules 1 through negative pressure. One end of the vacuum suction channel is connected to the material receiving module 1, and the other end of the vacuum suction channel 21 is connected to the non-hose dispensing part 212 arranged in the dispensing mechanism 22. The specific flexible dental floss is allowed to pass through the suction hose part 211 of the vacuum suction channel 21 from the material receiving module 1 to the non-hose dispensing part 212 arranged in the dispensing mechanism 22 through the negative pressure device. The dispensing mechanism 22 is configured to distribute the specific flexible dental floss through the non-hose dispensing part 212 to the conveyor belt 31, wherein the cooperation of the vacuum suction channel 21, the negative pressure device and the dispensing mechanism 22 makes the specific flexible dental floss distributed to the conveyor belt in a folded state to be packaged.

[0113] refer to Figure 2 In this embodiment, the material receiving module 1 includes a first material receiving module 11 and a second material receiving module 12, and the vacuum material suction channel 21 includes a first group of vacuum material suction channels and a second group of vacuum material suction channels, wherein one end of the first material receiving module 11 is connected to a first group of discharge ports of the injection molding machine, and the other end of the first material receiving module 11 is connected to the first group of vacuum material suction channels, one end of the second material receiving module is connected to a second group of discharge ports of the injection molding machine, and the other end of the second material receiving module is connected to the second group of vacuum material suction channels;

[0114] refer to Figure 6-Figure 8, each receiving module has the same structure, and each group of vacuum suction channels has the same structure. Taking the first receiving module 11 and the first group of vacuum suction channels as an example, the first receiving module 11 includes a first docking flange 111, and the first docking flange 111 is provided with 8 first receiving ports 112 corresponding to the discharge ports of the injection molding machine. The 8 first receiving ports 112 are neatly arranged, and one end of each of the 8 first receiving ports 112 is connected to the first discharge port of the injection molding machine and is used to receive the finished product specific flexible dental floss freely falling from the discharge port of the injection molding machine, that is, the number of the first receiving ports of the first receiving module is the same as the number of the first discharge ports of the injection molding machine. The first receiving module 11 is also provided with a first door opening mechanism 113 and a first door opening cylinder 114. When a material blockage or failure occurs in other modules, the central control module 4 controls the first door opening cylinder 114 to open the first door opening mechanism 113, so that the specific flexible dental floss no longer enters the vacuum suction channel and freely falls from the door opening to the dental floss recovery device (not shown). The first group of vacuum suction channels 211 includes a first suction hose portion and a first non-hose dispensing portion that are connected. The first suction hose portion includes eight first suction hoses 2111 (eg, Figure 2 As shown), the first non-hose dispensing portion includes 8 first non-hose dispensing sections 2121 (as shown Figure 2 As shown in the figure, eight first non-hose dispensing sections 2121 are neatly arranged into a first row, and are parallel to each other. The diameters of the suction hose and the non-hose dispensing section are substantially the same. The eight first non-hose dispensing sections 2121 are arranged in the dispensing mechanism 22, and the eight first non-hose dispensing sections 2121 respectively have eight first non-hose dispensing section inlets 21211, wherein one ends of the eight first suction hoses 2111 are respectively connected to the eight first material receiving ports 112, and the other ends of the eight first suction hoses 2111 are respectively connected to the eight first non-hose dispensing section inlets 2121.

[0115] Similarly, the second group of vacuum suction channels includes a connected second suction hose portion and a second non-hose dispensing portion, the second suction hose portion includes 8 second suction hoses, the second non-hose dispensing portion includes 8 second non-hose dispensing sections, the 8 second non-hose dispensing sections are neatly arranged in a second row, parallel to each other, and the first row and the second row are spaced a certain distance apart and parallel, the 8 second non-hose dispensing sections are arranged in the dispensing mechanism 22 and the 8 second non-hose dispensing sections respectively have 8 second non-hose dispensing section inlets, and one end of the 8 second suction hoses is respectively connected to the 8 second non-hose dispensing section inlets.

[0116] In order to prevent the specific flexible dental floss product from getting tangled when being transported from the receiving port to the dispensing mechanism 22, the length and diameter of the suction hose are usually as small as possible while ensuring that the specific flexible dental floss product can flow smoothly. In order to facilitate observation of the specific flexible dental floss in the suction hose, the suction hose 2111 is a transparent plastic hose with a diameter of d. In this embodiment, d is 7.5 mm. Figure 9-11 , showing different embodiments of a specific flexible dental floss 5, in this embodiment, the specific flexible dental floss 5 includes a plurality of handles 51, the maximum width of the plurality of handles 51 in any direction is h, h is 5.5 mm, and the minimum length of two adjacent handles is 6 cm. The diameter of the non-hose dispensing section is substantially the same as the diameter of the suction hose, so that when the dental floss falls from the dispensing mechanism 22 into the conveyor belt, the dental floss is folded / stacked, for example Fig.11 The packaged dental floss shown is in a folded / stacked state. It should be noted that the flexible dental floss may sometimes be sucked into a long strip by vacuum from the suction hose portion to the non-hose dispensing portion provided in the dispensing mechanism, and enters the dispensing mechanism through the valve (described below) of the dispensing mechanism and the non-hose dispensing portion structure, so that the dental floss falls onto the conveyor belt in a stacked / folded state (balled).

[0117] In this embodiment, the negative pressure device includes a vacuum pump, a vacuum connecting pipe (not shown) and a vacuum pipe interface 224, wherein the vacuum pipe interface 224 is arranged on the distribution mechanism 22, one end of the vacuum connecting pipe is connected to the vacuum pump, and the other end of the vacuum connecting pipe is connected to the vacuum pipe interface 224; the negative pressure is continuously generated by the vacuum pump connecting to the vacuum connecting pipe.

[0118] The dispensing mechanism 22 includes a plurality of vacuum selection valves 220, and a first valve 221, a second valve 222, and a third valve 223 arranged in sequence downstream of the plurality of vacuum selection valves 220, wherein the first valve 221, the second valve 222, and the third valve 223 are configured to control the opening or closing of the vacuum suction channel arranged in the dispensing mechanism, "open" means that the flexible dental floss falls smoothly in the vacuum suction channel, and "closed" means that the flexible dental floss falls on the valve. The plurality of vacuum selection valves control the timing of the flexible dental floss in the first group or the second group of vacuum suction channels entering the dispensing mechanism.

[0119] The vacuum selection valve 220 is configured to select the flexible dental floss in the first group of vacuum suction channels or the second group of vacuum suction channels to pass through the hose suction part of the vacuum suction channels and enter the non-hose dispensing part of the vacuum suction channels arranged in the dispensing mechanism and directly fall on the first valve 221. That is, the vacuum selection valve 220 is controlled by the negative pressure device and the central control module to select the flexible dental floss in the first group of vacuum suction channels or the second group of vacuum suction channels to enter the non-hose dispensing part arranged in the dispensing mechanism and directly fall on the first valve 221. The first valve 221 is configured to open the group of vacuum suction channels with materials when detecting which group of vacuum suction channels has materials, and close the group of vacuum suction channels without materials. The conveying and folding module also includes a detection device, which is used to detect which group of vacuum suction channels has a specific flexible dental floss product. In this embodiment, the detection device is a beam sensor, which is installed between the hose part of the suction pipe of the vacuum suction channel and the vacuum selection valve, and can detect whether there is a flexible dental floss at the first / second two groups of channels.

[0120] Specifically, the central control module controls the vacuum selection valve to close the second group of vacuum suction channels, and then the first group of vacuum suction channels is in an open state, and the vacuum pump sucks the specific flexible dental floss in the first group of vacuum suction channels into the first non-hose dispensing section of the dispensing mechanism through the first suction hose portion and directly falls on the first valve 221 of the dispensing mechanism;

[0121] The vacuum selection valve is controlled by the central control module to close the first group of vacuum suction channels, and the second group of vacuum suction channels is in an open state. The specific flexible dental floss in the second group of vacuum suction channels is sucked into the second non-hose dispensing section of the dispensing mechanism through the second suction hose portion by the vacuum pump and falls directly above the first valve 221 of the dispensing mechanism;

[0122] The vacuum selection valve can also be controlled by the central module to simultaneously close the first group of vacuum suction channels and the second group of vacuum suction channels. At this time, the specific flexible dental floss in the first group of vacuum suction channels and the second group of vacuum suction channels cannot enter the dispensing mechanism, or the vacuum selection valve can be controlled by the central module to simultaneously open the first group of vacuum suction channels and the second group of vacuum suction channels. At this time, the specific flexible dental floss in the first group of vacuum suction channels and the second group of vacuum suction channels enter the first non-hose dispensing section and the second non-hose dispensing section of the dispensing mechanism respectively through the first suction hose part and the second suction hose part and directly fall above the first valve 221 of the dispensing mechanism.

[0123] In the present embodiment, in order to better control the dental floss entering the packaging module, the vacuum suction channel also includes a combined batching portion provided in the dispensing mechanism, which is a combination of a non-hose batching portion of the first group of vacuum suction channels and a non-hose batching portion of the second group of vacuum suction channels. The combined batching portion includes a plurality of combined batching sections 2130, that is, a non-hose batching section of the first non-hose batching section of the first group of vacuum suction channels and a non-hose batching section of the second non-hose batching section of the second group of vacuum suction channels are combined into the combined batching section 2130 after the second valve 222. In the present embodiment, A non-hose dispensing section of the non-hose dispensing part of the first group of vacuum suction channels, a non-hose dispensing section of the non-hose dispensing part of the second group of vacuum suction channels, and the combined dispensing section 2130 constitute a Y-shaped section. Since the first non-hose dispensing part of this embodiment includes 8 first non-hose dispensing sections and the second non-hose dispensing part includes 8 second non-hose dispensing sections, they are combined into a group of combined dispensing sections including 8 combined dispensing sections 2130. The second valve 222 and the third valve 223 control the time for a specific flexible dental floss to enter the combined dispensing section.

[0124] The second valve 222 and the third valve 223 control the time for the specific flexible dental floss to enter the combined ingredient section after the merger; since the vacuum selection valve 220 is controlled by the central control module, the timing of feeding the first group of vacuum suction channels and the second group of vacuum suction channels can be an interval of 0.5 seconds to tens of seconds, and the opening timing of the third valve 223 is immediately opened after the feeding belt (conveyor belt) in the packaging module runs a beat, and the time of this beat is ended by the feeding of the last material station of a group of products. The interval time of opening the third valve 223 may be greater than the gap between the two openings of the vacuum selection valve, so the second valve 222 is provided in the middle for storage and waiting.

[0125] The packaging module can be any existing packaging module that can realize dental floss packaging, for example, the packaging module can be composed of a feeding belt, a film pulling mechanism for packaging film, a bag making and forming mechanism, a bag sealing mechanism, and a bag cutting mechanism; the feeding belt is positioned by an encoder, and the controller controls the operation of the stepping motor; the flexible dental floss is sequentially fed into the bag making and forming mechanism through the feeding belt, and the cross-beam sensor at the entrance determines whether there is dental floss, and then the controller controls other mechanisms to carry out packaging in linkage. The sensor at the entrance also has the functions of counting and judging whether there is material blockage.

[0126] All documents mentioned in this application are considered to be included in the disclosure of this application as a whole, so that they can be used as the basis for modification when necessary. In addition, it should be understood that after reading the above disclosure of this application, those skilled in the art can make various changes or modifications to this application, and these equivalent forms also fall within the scope of protection claimed in this application.

Claims

1. An automatic packaging device for specific flexible dental floss, characterized in that: include: A material receiving module, a conveying and folding module, and a packaging module, wherein the packaging module comprises a conveyor belt; The receiving module is configured to receive a specific flexible dental floss delivered by an injection molding machine; The conveying and folding module comprises a vacuum suction channel, a negative pressure device and a dispensing mechanism, wherein the vacuum suction channel comprises a suction hose portion, one end of which is communicated with the receiving module, and the other end of which is communicated with the dispensing mechanism, wherein the specific flexible dental floss passes through the suction hose portion from the receiving module into the dispensing mechanism through the negative pressure device, and the dispensing mechanism is configured to distribute the specific flexible dental floss onto the conveyor belt, wherein the specific flexible dental floss distributed onto the conveyor belt is in a folded state to be packaged through the cooperation of the vacuum suction channel, the negative pressure device and the dispensing mechanism, and the folded state of the dental floss refers to that the specific flexible dental floss is independent and freely stacked when it falls from the dispensing mechanism into the conveyor belt; The specific flexible dental floss comprises a plurality of handles, and two adjacent handles are connected by a flexible cord; The suction hose part includes a plurality of suction hoses, the diameter of the plurality of suction hoses is d, the maximum width of the plurality of handles in any direction is h, and the minimum length between any two adjacent handles is l, wherein h<d<l.

2. The automatic packaging equipment according to claim 1, characterized in that: The handle portion is made of plastic material.

3. The automatic packaging equipment according to claim 2, characterized in that: The material receiving module comprises a docking flange configured to dock with the injection molding machine, and the docking flange is provided with a plurality of material receiving ports matching with the material outlet of the injection molding machine.

4. The automatic packaging equipment according to claim 3, characterized in that: The plurality of suction hoses are connected to the plurality of material receiving ports, and the number of the plurality of suction hoses is the same as the number of the plurality of material receiving ports.

5. The automatic packaging equipment according to claim 4, characterized in that: h<d<4h.

6. The automatic packaging equipment according to claim 4, characterized in that: The vacuum suction channel further comprises a non-hose dispensing portion, which comprises a plurality of non-hose dispensing sections, the plurality of non-hose dispensing sections are in communication with the plurality of suction hoses, and the plurality of non-hose dispensing sections are disposed in the dispensing mechanism.

7. The automatic packaging equipment according to claim 1, characterized in that: The material receiving module includes one or more material receiving modules, the vacuum suction channel is one or more groups of vacuum suction channels, each material receiving module is connected to each group of vacuum suction channels respectively, and the distribution mechanism includes a vacuum selection valve, which selectively allows a specific flexible dental floss of a group of vacuum suction channels to fall onto the conveyor belt of the packaging module.

8. The automatic packaging equipment according to claim 7, characterized in that: The conveying and folding module further comprises a detection device, which is disposed on the dispensing mechanism and is used for detecting in which group of vacuum suction channels the specific flexible dental floss exists.

9. The automatic packaging equipment according to claim 7, characterized in that: The dispensing mechanism further includes a first valve, a second valve, and a third valve disposed in sequence downstream of the vacuum selection valve, wherein the first valve, the second valve, and the third valve are configured to determine a timing for the specific flexible dental floss to be dropped.

10. The automatic packaging equipment according to claim 9, characterized in that: The automatic packaging equipment further comprises a central control module, which is configured to control the operations of each module.

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