Automatic sanitary towel packaging film heat sealing device and heat sealing process

Abstract

The invention relates to the technical field of sanitary napkin packaging, and discloses an automatic sanitary napkin packaging film heat-sealing device and a heat-sealing technology.The automatic sanitary napkin packaging film heat-sealing device comprises a detection assembly, the detection assembly comprises a supporting plate and an extrusion part, the extrusion part is arranged on the supporting plate and comprises a movable plate, and the movable plate is located below the supporting plate; an extrusion plate is arranged below the movable plate, positioning columns are fixed to the four corners of the top of the extrusion plate, the outer sides of the positioning columns are sleeved with first springs, and the two ends of the first springs are fixed to the movable plate and the extrusion plate respectively; the detection assembly further comprises a contraction piece which is arranged on the movable plate. The sanitary towel packaging film heat sealing device has the beneficial effects that through the arrangement of the detection assembly, the heat sealing condition of a sanitary towel packaging film can be detected, and if the packaging film leaks air or the heat sealing effect is poor and the packaging film can be broken after being extruded, the packaging film can be picked out, so that the situation that defective products flow into the subsequent process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sanitary napkin packaging, in particular to an automatic sanitary napkin packaging film heat-sealing device and a heat-sealing process. Background Art

[0002] After production, sanitary napkins need to be stored in a dry and clean environment to ensure their quality and hygiene. Heat sealing the sanitary napkin packaging film can effectively seal and prevent external factors such as air, moisture and dust from entering the packaging bag, thereby keeping the sanitary napkin dry and clean. When the heat sealing device heats the packaging film, the heat sealing equipment may have problems such as uneven temperature and insufficient pressure, resulting in poor heat sealing effect in some areas of the packaging film. In addition, the packaging film has quality defects, such as uneven thickness and impurities on the surface, which will affect the heat sealing effect. After the packaging film is heat-sealed, there is a lack of inspection of the heat sealing quality of the packaging film. Leaking packaging film will contaminate the sanitary napkin and affect the sanitary quality of the product. In addition, the heat sealing effect of some packaging films is poor. There is no leakage at the time, but in the subsequent transportation process, when leakage occurs due to squeezing, air and moisture enter the packaging bag, accelerating the deterioration of the sanitary napkin and shortening the shelf life of the product. Summary of the invention

[0003] In view of the problems existing in the above-mentioned existing automatic sanitary napkin packaging film heat sealing device, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is the lack of detection of the heat-sealing quality of the packaging film.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic sanitary napkin packaging film heat sealing device, comprising: a detection component, comprising a support plate and an extrusion member, the extrusion member is arranged on the support plate, the extrusion member comprises a movable plate, the movable plate is located below the support plate, an extrusion plate is arranged below the movable plate, positioning columns are fixed at the four corners of the top of the extrusion plate, a first spring is sleeved on the outer side of the positioning column, and the two ends of the first spring are respectively fixed to the movable plate and the extrusion plate;

[0006] The detection assembly also includes a retracting member, which is arranged on the movable plate and includes a push plate, the push plate is located on one side of the movable plate, a fixed column is fixed on one side of the push plate, a fixed block is fixed on the top of the movable plate, and the fixed column is movably connected with the fixed block;

[0007] The detection assembly also includes a rotating part, which is arranged on the top of the movable plate, including a rotating disk, the rotating disk is located at the top of the movable plate, a rotating column is inserted in the rotating disk, the bottom end of the rotating column is rotatably connected to the movable plate through a bearing, a connecting rod is fixed to one side of the push plate, a guide shaft is fixed to the end of the connecting rod, a guide groove is opened on the rotating disk, the guide shaft slides in the guide groove, a fixed shaft is fixed to one side of the rotating column, a support sleeve is provided on the outer side of the rotating column, a guide block is fixed on the top of the support sleeve, the end of the guide block is rotatably connected to the rotating block through a rotating shaft, the support sleeve is connected and fixed to the support plate through a support rod, the guide block is inclined, and the fixed shaft cooperates with the guide block.

[0008] As a preferred solution of the automatic sanitary napkin packaging film heat sealing device described in the present invention, wherein: the detection component also includes a connecting piece, which is arranged in the rotating column, including a movable block, a chamber is opened in the rotating column, and the movable block is movably connected in the chamber, a limiting column is fixed on one side of the movable block, a fixing sleeve is fixed on the top of the turntable, a limiting hole is opened on the fixing sleeve, the limiting column is engaged with the limiting hole, a second spring is fixed on one side of the movable block, and one end of the second spring is fixed to the inner wall of the chamber.

[0009] As a preferred solution of the automatic sanitary napkin packaging film heat sealing device described in the present invention, wherein: a movable rod is inserted in the rotating column, the bottom end of the movable rod is cylindrical, and is rotatably connected to the extrusion plate through a bearing, an extrusion block is fixed on one side of the movable rod, a force groove is opened in the movable block, one side of the extrusion block is inclined, and there are two extrusion blocks, which are respectively located above and below the movable block, a push rod is fixed to the bottom of the support plate, the push rod is movably connected to the movable plate, and the bottom end is in contact with the extrusion plate.

[0010] As a preferred solution of the automatic sanitary napkin packaging film heat sealing device of the present invention, wherein: a mounting block is fixed to one end of the fixing column, a third spring is fixed to one side of the mounting block, and one end of the third spring is fixed to the fixing block.

[0011] As a preferred solution of the automated sanitary napkin packaging film heat sealing device of the present invention, a cylinder is fixed on the top of the support plate, the output end of the cylinder is fixed to the movable plate, a stabilizing column is fixed on the top of the movable plate, and the stabilizing column is movably connected to the support plate.

[0012] As a preferred solution of the automated sanitary napkin packaging film heat sealing device of the present invention, the detection component also includes a material receiving piece, which is arranged on one side below the movable plate, and the material receiving piece includes a material receiving plate, a motor is arranged at the bottom of the material receiving plate, the motor output shaft is fixed to the material receiving plate, and a pushing plate is arranged at the top of the material receiving plate.

[0013] As a preferred solution of the automatic sanitary napkin packaging film heat sealing device described in the present invention, wherein: the detection component also includes a trigger member, which is arranged on one side of the support plate, and the trigger member includes a support column, and the support column is fixed to one side of the support plate, and a first support block is fixed to the outside of the support column, a fourth spring is fixed to the bottom of the first support block, and a second support block is fixed to the bottom end of the fourth spring, and electrode sheets are fixed to the top of the second support block and the bottom end of the support column.

[0014] As a preferred solution of the automatic sanitary napkin packaging film heat sealing device of the present invention, it also includes a packaging component connected to the detection component, including a workbench, the support plate is fixed to the top of the workbench, and a conveyor belt is arranged on the top of the workbench.

[0015] As a preferred solution of the automatic sanitary napkin packaging film heat-sealing device of the present invention, a bagging mechanism is provided on the top of the workbench and on one side of the conveyor belt, and a heat-sealing mechanism is provided on one side of the bagging mechanism.

[0016] As a preferred solution of the automatic sanitary napkin packaging film heat-sealing process of the present invention, wherein: selecting a suitable packaging material to ensure that it has good heat-sealing performance and barrier properties to meet the requirements of sanitary napkin packaging;

[0017] The film and sanitary napkin are smoothly conveyed to one side of the bagging mechanism through the conveyor belt, and the sanitary napkin is loaded into the packaging film through the bagging mechanism;

[0018] The packaging film after bagging is conveyed to one side of the heat sealing mechanism by a conveyor belt, and the packaging film is heat-sealed by the heat sealing mechanism;

[0019] Finally, the heat-sealed packaging film can be inspected by the detection component.

[0020] The beneficial effect of the present invention is that by setting up the detection component, the heat sealing condition of the sanitary napkin packaging film can be detected. If the packaging film has air leakage or poor heat sealing effect, and will break when squeezed, the packaging film will be picked out to avoid defective products from flowing into subsequent processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1This is an overall diagram of the automated sanitary napkin packaging film heat sealing device.

[0023] Figure 2 This is a structural diagram of the detection components of the automated sanitary napkin packaging film heat sealing device.

[0024] Figure 3 For automatic heat sealing device of sanitary napkin packaging film Figure 2 A partial enlarged structural diagram in the middle.

[0025] Figure 4 This is a top view of the structure of the movable plate of the automated sanitary napkin packaging film heat sealing device.

[0026] Figure 5 This is a side view of the detection component of the automated sanitary napkin packaging film heat sealing device.

[0027] Figure 6 This is a structural diagram of the rotating column of the automated sanitary napkin packaging film heat sealing device.

[0028] Figure 7 This is a cross-sectional structural diagram of the rotating column of the automated sanitary napkin packaging film heat sealing device. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1

[0033] Reference Figure 2-Figure 6, which is the first embodiment of the present invention, and this embodiment provides an automated sanitary napkin packaging film heat-sealing device and heat-sealing process. The automated sanitary napkin packaging film heat-sealing device and heat-sealing process include a detection component 200, including a support plate 201 and an extrusion member 202. The extrusion member 202 is arranged on the support plate 201, and the extrusion member 202 includes a movable plate 202a. The movable plate 202a is located below the support plate 201, and an extrusion plate 202b is arranged below the movable plate 202a. Positioning columns 202c are fixed to the four corners of the top of the extrusion plate 202b. A first spring 202d is sleeved on the outer side of the positioning column 202c, and the two ends of the first spring 202d are respectively fixed to the movable plate 202a and the extrusion plate 202b.

[0034] The support plate 201 is L-shaped, and there are four positioning posts 202c and four first springs 202d, which are respectively fixed at the four corners of the top of the pressing plate 202b.

[0035] When the movable plate 202a moves downward, it will drive the extrusion plate 202b to move downward, so that the extrusion plate 202b contacts the heat-sealed sanitary napkin packaging film on the top of the conveyor belt and squeezes the packaging film. If the packaging film is well heat-sealed and can withstand a certain pressure without deformation, the packaging film will offset the elastic force of the first spring 202d and push the extrusion plate 202b to move upward as the movable plate 202a continues to move downward. When the extrusion plate 202b moves upward, it indicates that the packaging film is well heat-sealed.

[0036] If the packaging film has poor heat sealing, such as air leakage, incomplete sealing, etc., as the movable plate 202a continues to move downward, the packaging film will be deformed under the pressure of the extrusion plate 202b. At this time, the packaging film cannot offset the elastic force of the first spring 202d, and then during the downward movement of the movable plate 202a, the packaging film cannot push the extrusion plate 202b to move upward, so that the packaging film with poor heat sealing can be detected.

[0037] Sanitary napkins are usually composed of multiple layers of materials, including an absorbent layer, a surface layer, etc. These materials have a certain degree of softness and elasticity. When subjected to the pressure of the extrusion plate 202b, the sanitary napkin will undergo a certain degree of deformation. However, due to the limitations of its material and structure, the pressure it can withstand is much smaller than the pressure that the entire packaging film with good heat sealing can withstand. Therefore, the packaging film with good heat sealing can offset the elastic force of the first spring 202d, but the sanitary napkin itself cannot offset the elastic force of the first spring 202d.

[0038] The detection component 200 also includes a retracting part 203, which is arranged on the movable plate 202a, including a push plate 203a, the push plate 203a is located on one side of the movable plate 202a, a fixed column 203b is fixed on one side of the push plate 203a, a fixed block 203c is fixed on the top of the movable plate 202a, and the fixed column 203b is movably connected with the fixed block 203c.

[0039] There are four groups of retracting parts 203, which are respectively located around the movable plate 202a. There are two fixed columns 203b in one group of retracting parts 203, which are respectively fixed at the two ends of one side of the push plate 203a. Through the cooperation of the fixed columns 203b and the fixed blocks 203c, the push plate 203a is supported and positioned to avoid displacement during movement.

[0040] When the movable plate 202a moves downward, it will simultaneously drive the push plate 203a to move downward. At this time, the push plate 203a will first contact the packaging film, and at the same time, the four push plates 203a will move in the direction of the movable plate 202a, and shrink and squeeze the packaging film through the four push plates 203a. When the squeezing plate 202b contacts the packaging film, the packaging film is contracted in a smaller space. The packaging film is subjected to the reverse thrust generated by the pressure of the squeezing plate 202b, and can only apply thrust in the upward and downward directions. The bottom of the packaging film is the conveyor belt, which cannot push the conveyor belt to move downward. Therefore, the packaging film can only apply the reverse thrust on the squeezing plate 202b, so that the pressure applied downward by the squeezing plate 202b can act more directly on the packaging film, accurately reflecting the bearing capacity of the heat-sealed part. If the heat seal is good, the packaging film can withstand the pressure without obvious deformation; if the heat seal is poor, the packaging film is more likely to leak, rupture, etc. under pressure, thereby improving the accuracy of detection.

[0041] The detection assembly 200 also includes a rotating member 204, which is arranged on the top of the movable plate 202a, including a rotating disk 204a, the rotating disk 204a is located on the top of the movable plate 202a, a rotating column 204b is inserted into the rotating disk 204a, and the bottom end of the rotating column 204b is rotatably connected to the movable plate 202a through a bearing, a connecting rod 204c is fixed to one side of the push plate 203a, and a guide shaft 204d is fixed to the end of the connecting rod 204c, and a guide groove 204a-1 is opened on the rotating disk 204a. The shaft 204d slides in the guide groove 204a-1, a fixed shaft 204e is fixed on one side of the rotating column 204b, a support sleeve 204f is sleeved on the outer side of the rotating column 204b, a guide block 204g is fixed on the top of the support sleeve 204f, the end of the guide block 204g is rotatably connected to the rotating block 204h through a rotating shaft, the support sleeve 204f is connected and fixed to the support plate 201 through a support rod, the guide block 204g is inclined, and the fixed shaft 204e cooperates with the guide block 204g.

[0042] There are four connecting rods 204c and four guide shafts 204d, which correspond to the four push plates 203a respectively, and the guide groove 204a-1 is inclined.

[0043] There are four guide blocks 204g and four rotating blocks 204h, which are respectively located around the top of the support sleeve 204f. A groove is provided on the guide block 204g. The rotating block 204h is rotatably connected to the groove through a device. The bottom of the rotating block 204h is in contact with the inner wall of the groove. There is no obstruction above the rotating block 204h. Therefore, the rotating block 204h can only rotate upward but not downward. Gaps are left at adjacent positions of the four guide blocks 204g, so that the fixed shaft 204e can move downward in a straight line.

[0044] When the movable plate 202a moves downward, it will drive the rotating column 204b and the fixed shaft 204e to move downward. When the fixed shaft 204e contacts the rotating block 204h, it will move downward along the rotating block 204h and move to the top of the guide block 204g. As the movable plate 202a continues to move downward, the fixed shaft 204e will move along the inclined surface of the guide block 204g. Through the cooperation of the two, the rotating column 204b can be driven to rotate, and the turntable 204a can be driven to rotate through the rotating column 204b. When the turntable 204a is rotating, the guide shaft 204d will slide in the guide groove 204a-1. Through the cooperation of the two, the connecting rod 204c is driven to move, so that the push plate 203a can be driven to move in the direction of the movable plate 202a through the connecting rod 204c, and the push plate 203a can shrink and squeeze the packaging film.

[0045] When the push plate 203a completes the contraction of the packaging film, it will contact the movable plate 202a at the same time. At this time, the fixed shaft 204e will enter the gap adjacent to the guide block 204g. At this time, when the fixed shaft 204e moves downward, it will move downward in a straight line, so that the rotating column 204b and the turntable 204a will not rotate.

[0046] When the movable plate 202a drives the rotating column 204b and the fixed shaft 204e to move upward, the fixed shaft 204e will push the rotating block 204h to move upward when it contacts the rotating block 204h, so that the upward movement of the fixed shaft 204e will not be hindered, and when the fixed shaft 204e is separated from the rotating block 204h, the rotating block 204h can rotate downward and return to its original position by its own gravity. If the rotating block 204h rotates too much and cannot be returned to its original position, a torsion spring can be added to the rotating shaft connected to the rotating block 204h, and a torsion force for returning to the original position can be applied to the rotating block 204h through the torsion spring.

[0047] Example 2

[0048] Reference Figure 2-Figure 7 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0049] Specifically, the detection component 200 also includes a connecting member 205, which is arranged in the rotating column 204b, including a movable block 205a, a chamber 204b-1 is opened in the rotating column 204b, and the movable block 205a is movably connected to the chamber 204b-1. A limiting column 205b is fixed on one side of the movable block 205a, a fixed sleeve 205c is fixed on the top of the turntable 204a, and a limiting hole 205c-1 is opened on the fixed sleeve 205c. The limiting column 205b is engaged with the limiting hole 205c-1, and a second spring 205d is fixed on one side of the movable block 205a, and one end of the second spring 205d is fixed to the inner wall of the chamber 204b-1.

[0050] There are multiple limiting holes 205c-1, which are evenly distributed in a ring shape on the fixed sleeve 205c. When the limiting column 205b is engaged with the limiting hole 205c-1, the rotating column 204b can be connected to the turntable 204a through the cooperation of the two, so that the rotating column 204b can drive the turntable 204a to rotate. When the limiting column 205b is separated from the limiting hole 205c-1, the rotating column 204b will not rotate, and the turntable 204a can rotate alone.

[0051] The second spring 205d applies a thrust to the movable block 205a, so that the movable block 205a drives the limiting column 205b to engage with the limiting hole 205c-1 more tightly.

[0052] Specifically, a movable rod 205e is inserted into the rotating column 204b, the bottom end of the movable rod 205e is cylindrical, and is rotatably connected to the extrusion plate 202b through a bearing, an extrusion block 205f is fixed on one side of the movable rod 205e, a force groove 205a-1 is opened in the movable block 205a, one side of the extrusion block 205f is inclined, and there are two extrusion blocks 205f, which are respectively located above and below the movable block 205a, and a push rod 205g is fixed to the bottom of the support plate 201, the push rod 205g is movably connected to the movable plate 202a, and the bottom end is in contact with the extrusion plate 202b.

[0053] When the squeezing plate 202b squeezes the packaging film and moves upward due to the resistance of the packaging film, it will drive the movable rod 205e to move upward, and the movable rod 205e drives the squeezing block 205f below to squeeze the inner wall of the force groove 205a-1, and the cooperation of the two drives the movable block 205a and the limiting column 205b to move, so that the limiting column 205b is separated from the limiting hole 205c-1, so that the rotating column 204b can be separated from the rotating disk 204a, so that the rotating disk 204 a can rotate in the opposite direction alone and make the guide shaft 204d move in the opposite direction in the guide groove 204a-1. At this time, the connecting rod 204c and the push plate 203a will move away from the movable plate 202a and separate the push plate 203a from the packaging film, thereby releasing the shrinkage and squeezing of the packaging film. When the movable plate 202a drives the push plate 203a to move upward, the push plate 203a will not drive the packaging film to move upward, thereby allowing the packaging film with good heat sealing effect to flow into the downward movement process.

[0054] When the extrusion plate 202b moves upward without resistance from the packaging film, the limiting column 205b and the limiting hole 205c-1 will not separate. At this time, the turntable 204a will be restricted by the rotating column 204b and will not rotate independently, so that the push plate 203a can always clamp and fix the packaging film. When the movable plate 202a drives the push plate 203a to move upward, the packaging film can be driven upward by the push plate 203a, so that the packaging film with poor heat sealing effect can be removed from the conveyor line, thereby preventing it from flowing into the next process.

[0055] When the movable plate 202a is reset upward, the bottom end of the push rod 205g will contact the extrusion plate 202b. As the extrusion plate 202b moves upward, the push rod 205g will push the extrusion plate 202b to move downward. When the extrusion plate 202b moves downward, the movable rod 205e will drive the upper extrusion block 205f to squeeze the inner wall of the force groove 205a-1, so that the movable block 205a drives the limiting column 205b to separate from the limiting hole 205c-1, thereby separating the rotating column 204b from the turntable 204a. At this time, the turntable 204a can rotate in the opposite direction alone, so that the push plate 203a is separated from the packaging film, causing the packaging film to fall downward and flow to other places.

[0056] Specifically, a mounting block 202b-1 is fixed to one end of the fixing column 203b, a third spring 202b-2 is fixed to one side of the mounting block 202b-1, and one end of the third spring 202b-2 is fixed to the fixing block 203c.

[0057] When the rotating column 204b is separated from the turntable 204a, the third spring 202b-2 can apply a pulling force to the mounting block 202b-1, and the mounting block 202b-1 can drive the fixed column 203b to move, so that the fixed column 203b can push the push plate 203a to move away from the movable plate 202a and release the clamping of the packaging film.

[0058] The friction between the bottom end of the rotating column 204b and the movable plate 202a is relatively large. When the rotating column 204b is connected to the turntable 204a, the elastic force of the third spring 202b-2 cannot pull the mounting block 202b-1 to move. Only when the rotating column 204b is separated from the turntable 204a and the turntable 204a rotates without the resistance of the rotating column 204b, the third spring 202b-2 will pull the mounting block 202b-1 to move.

[0059] Specifically, a cylinder 206 is fixed on the top of the support plate 201 , an output end of the cylinder 206 is fixed to the movable plate 202 a , a stabilizing column 207 is fixed on the top of the movable plate 202 a , and the stabilizing column 207 is movably connected to the inside of the support plate 201 .

[0060] The cylinder 206 is used to drive the movable plate 202a to move up and down, and the stroke of the movable plate 202a moving up and down each time is fixed. The stabilizing column 207 is used to position the movable plate 202a to prevent the movable plate 202a from deviating when moving.

[0061] Specifically, the detection component 200 also includes a material receiving piece 208, which is arranged on one side below the movable plate 202a. The material receiving piece 208 includes a material receiving plate 208a, a motor 208b is arranged at the bottom of the material receiving plate 208a, the output shaft of the motor 208b is fixed to the material receiving plate 208a, and a pushing plate 208c is arranged on the top of the material receiving plate 208a.

[0062] Motor 208b is installed on the workbench. Motor 208b is used to drive the receiving plate 208a to rotate. When the receiving plate 208a rotates to the bottom of the extrusion plate 202b, it can catch the packaging film falling down. Then the motor 208b will drive the receiving plate 208a to rotate in the opposite direction and reset. At this time, the packaging film on the top of the receiving plate 208a will be pushed away by the pushing plate 208c, and the packaging film will be heat-sealed again, or the packaging film will be replaced.

[0063] Example 3

[0064] Reference Figure 1-Figure 7 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0065] Specifically, the detection component 200 also includes a trigger member 209, which is arranged on one side of the support plate 201. The trigger member 209 includes a support column 209a, and the support column 209a is fixed to one side of the support plate 201. A first support block 209b is fixed to the outside of the support column 209a, a fourth spring 209c is fixed to the bottom of the first support block 209b, a second support block 209d is fixed to the bottom end of the fourth spring 209c, and electrode sheets 209e are fixed to the top of the second support block 209d and the bottom end of the support column 209a.

[0066] When the two electrode sheets 209e are in contact, the motor 208b will drive the receiving plate 208a to rotate to below the extrusion plate 202b, and support the second support block 209d through the fourth spring 209c.

[0067] When the push plate 203a moves away from the movable plate 202a and then moves upward, the push plate 203a will not contact the second support block 209d. When the push plate 203a is in contact with the movable plate 202a and drives the packaging film to move upward, the position of the plate 203a will contact the second support block 209d and push the second support block 209d to move upward, so that the second support block 209d can drive the two electrode sheets 209e to contact, and the motor 208b can drive the receiving plate 208a to rotate to the bottom of the extrusion plate 202b.

[0068] Specifically, it also includes a packaging component 100 connected to the detection component 200 , including a workbench 101 , a support plate 201 fixed to the top of the workbench 101 , and a conveyor belt 102 is arranged on the top of the workbench 101 .

[0069] There are two conveyor belts 102, which are respectively located on both sides of the top of the workbench 101. The two conveyor belts 102 are used to transport unpackaged sanitary napkins and packaged sanitary napkins respectively.

[0070] Specifically, a bagging mechanism 103 is provided on the top of the workbench 101 and on one side of the conveyor belt 102 , and a heat sealing mechanism 104 is provided on one side of the bagging mechanism 103 .

[0071] The push plate 208c is fixed to the workbench 101 through a mounting rod. A bag placing mechanism is provided on the workbench 101 for lowering the packaging film. The bagging mechanism 103 is used to put the sanitary napkin into the packaging film, and then the packaging film is heat-sealed by the heat-sealing mechanism 104. This is the prior art and will not be elaborated in detail in this scheme. Those skilled in the art can clearly understand the working principle.

[0072] There needs to be a sufficient distance between the detection component 200 and the heat-sealing mechanism 104 to ensure that the packaging film is fully solidified after heat sealing before the packaging film is squeezed and tested.

[0073] Specifically, select suitable packaging materials to ensure that they have good heat-sealing and barrier properties to meet the needs of sanitary napkin packaging;

[0074] The film and sanitary napkin are smoothly conveyed to one side of the bagging mechanism 103 through the conveyor belt 102, and the sanitary napkin is put into the packaging film through the bagging mechanism 103;

[0075] The bagged packaging film is conveyed to the side of the heat sealing mechanism 104 by the conveyor belt 102, and the packaging film is heat-sealed by the heat sealing mechanism 104;

[0076] Finally, the heat-sealed packaging film can be inspected by the inspection component 200.

[0077] When in use, after the heat-sealed packaging film moves to the bottom of the extrusion plate 202b, the cylinder 206 is started to drive the movable plate 202a to move downward. When the movable plate 202a moves downward, it drives the rotating column 204b and the fixed shaft 204e to move downward. When the fixed shaft 204e contacts the rotating block 204h, it moves downward along the rotating block 204h and moves to the top of the guide block 204g. As the movable plate 202a continues to move downward, the fixed shaft 204e will move along the rotating block 204h. The inclined surface of the guide block 204g moves, and the cooperation of the two can drive the rotating column 204b to rotate, and the rotating column 204b can drive the turntable 204a to rotate. When the turntable 204a is rotating, the guide shaft 204d will slide in the guide groove 204a-1, and the cooperation of the two can drive the connecting rod 204c to move, so that the connecting rod 204c can drive the push plate 203a to move in the direction of the movable plate 202a, and the push plate 203a can shrink and squeeze the packaging film.

[0078] At the same time, the extrusion plate 202b contacts the heat-sealed sanitary napkin packaging film on the top of the conveyor belt and squeezes the packaging film. If the packaging film is well heat-sealed and can withstand a certain pressure without deformation, the packaging film will offset the elastic force of the first spring 202d and as the movable plate 202a continues to move downward, it will push the extrusion plate 202b to move upward. When the extrusion plate 202b moves upward, it indicates that the packaging film is well heat-sealed.

[0079] If the packaging film has poor heat sealing, such as air leakage or incomplete sealing, as the movable plate 202a continues to move downward, the packaging film will be deformed under the pressure of the extrusion plate 202b. At this time, the packaging film cannot offset the elastic force of the first spring 202d, and then during the downward movement of the movable plate 202a, the packaging film cannot push the extrusion plate 202b to move upward.

[0080] When the movable plate 202a moves upward, the packaging film can be driven upward by the push plate 203a and transported to one side by the receiving plate 208a, so that the heat-sealed sanitary napkin packaging film can be inspected and the packaging film that fails the heat sealing can be removed.

[0081] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic sanitary napkin packaging film heat sealing device, characterized in that: include, A detection component (200) comprises a support plate (201) and an extrusion member (202), wherein the extrusion member (202) is arranged on the support plate (201), and the extrusion member (202) comprises a movable plate (202a), wherein the movable plate (202a) is located below the support plate (201), and an extrusion plate (202b) is arranged below the movable plate (202a), and positioning columns (202c) are fixed at four corners of the top of the extrusion plate (202b), and a first spring (202d) is sleeved on the outer side of the positioning column (202c), and two ends of the first spring (202d) are respectively fixed to the movable plate (202a) and the extrusion plate (202b); The detection assembly (200) further comprises a retracting member (203), which is arranged on the movable plate (202a), and comprises a push plate (203a), wherein the push plate (203a) is located on one side of the movable plate (202a), a fixing column (203b) is fixed on one side of the push plate (203a), a fixing block (203c) is fixed on the top of the movable plate (202a), and the fixing column (203b) is movably connected to the fixing block (203c); The detection assembly (200) further comprises a rotating member (204), which is arranged on the top of the movable plate (202a), and comprises a rotating disk (204a), wherein the rotating disk (204a) is located on the top of the movable plate (202a), a rotating column (204b) is inserted into the rotating disk (204a), and the bottom end of the rotating column (204b) is rotatably connected to the movable plate (202a) via a bearing, a connecting rod (204c) is fixed on one side of the push plate (203a), and a guide shaft (204d) is fixed on the end of the connecting rod (204c), and a guide groove (204a-1) is provided on the rotating disk (204a). The guide shaft (204d) slides in the guide groove (204a-1); a fixed shaft (204e) is fixed on one side of the rotating column (204b); a support sleeve (204f) is sleeved on the outer side of the rotating column (204b); a guide block (204g) is fixed on the top of the support sleeve (204f); the end of the guide block (204g) is rotatably connected to a rotating block (204h) via a rotating shaft; the support sleeve (204f) is connected and fixed to the support plate (201) via a support rod; the guide block (204g) is inclined; and the fixed shaft (204e) cooperates with the guide block (204g).

2. The automatic sanitary napkin packaging film heat sealing device according to claim 1, characterized in that: The detection component (200) further comprises a connecting member (205), which is arranged in the rotating column (204b) and comprises a movable block (205a). A chamber (204b-1) is provided in the rotating column (204b). The movable block (205a) is movably connected to the chamber (204b-1). A limiting column (205b) is fixed on one side of the movable block (205a). A fixing sleeve (205c) is fixed on the top of the rotating disk (204a). A limiting hole (205c-1) is provided on the fixing sleeve (205c). The limiting column (205b) is engaged with the limiting hole (205c-1). A second spring (205d) is fixed on one side of the movable block (205a). One end of the second spring (205d) is fixed to the inner wall of the chamber (204b-1).

3. The automatic sanitary napkin packaging film heat sealing device according to claim 2, characterized in that: A movable rod (205e) is inserted into the rotating column (204b), the bottom end of the movable rod (205e) is cylindrical and is rotatably connected to the extrusion plate (202b) through a bearing, an extrusion block (205f) is fixed on one side of the movable rod (205e), a force groove (205a-1) is provided in the movable block (205a), one side of the extrusion block (205f) is inclined, and there are two extrusion blocks (205f), which are respectively located above and below the movable block (205a), and a push rod (205g) is fixed to the bottom of the support plate (201), the push rod (205g) is movably connected to the movable plate (202a), and the bottom end is in contact with the extrusion plate (202b).

4. The automatic sanitary napkin packaging film heat sealing device according to claim 2 or 3, characterized in that: A mounting block (202b-1) is fixed to one end of the fixing column (203b), a third spring (202b-2) is fixed to one side of the mounting block (202b-1), and one end of the third spring (202b-2) is fixed to the fixing block (203c).

5. The automatic sanitary napkin packaging film heat sealing device according to claim 4, characterized in that: A cylinder (206) is fixed on the top of the support plate (201), and the output end of the cylinder (206) is fixed to the movable plate (202a). A stabilizing column (207) is fixed on the top of the movable plate (202a), and the stabilizing column (207) is movably connected to the inside of the support plate (201).

6. The automatic sanitary napkin packaging film heat sealing device according to claim 5, characterized in that: The detection component (200) also includes a material receiving member (208), which is arranged on one side below the movable plate (202a), and the material receiving member (208) includes a material receiving plate (208a), a motor (208b) is arranged at the bottom of the material receiving plate (208a), an output shaft of the motor (208b) is fixed to the material receiving plate (208a), and a pushing plate (208c) is arranged at the top of the material receiving plate (208a).

7. The automatic sanitary napkin packaging film heat sealing device according to claim 5 or 6, characterized in that: The detection component (200) further comprises a trigger member (209) which is arranged on one side of the support plate (201); the trigger member (209) comprises a support column (209a); the support column (209a) is fixed to one side of the support plate (201); a first support block (209b) is fixed to the outside of the support column (209a); a fourth spring (209c) is fixed to the bottom of the first support block (209b); a second support block (209d) is fixed to the bottom end of the fourth spring (209c); and electrode sheets (209e) are fixed to the top of the second support block (209d) and the bottom end of the support column (209a).

8. The automatic sanitary napkin packaging film heat sealing device according to claim 7, characterized in that: It also includes a packaging component (100) connected to the detection component (200), including a workbench (101), the support plate (201) is fixed to the top of the workbench (101), and a conveyor belt (102) is provided on the top of the workbench (101).

9. The automatic sanitary napkin packaging film heat sealing device according to claim 8, characterized in that: A bagging mechanism (103) is provided on the top of the workbench (101) and on one side of the conveyor belt (102), and a heat sealing mechanism (104) is provided on one side of the bagging mechanism (103).

10. An automated heat-sealing process for sanitary napkin packaging film, characterized in that: The heat sealing device comprises any one of claims 1 to 9, wherein the heat sealing process comprises: Select suitable packaging materials and ensure that they have good heat-sealing and barrier properties to meet the needs of sanitary napkin packaging; The film and sanitary napkin are smoothly conveyed to one side of the bagging mechanism (103) via a conveyor belt (102), and the sanitary napkin is placed into the packaging film via the bagging mechanism (103); The bagged packaging film is conveyed to one side of a heat sealing mechanism (104) via a conveyor belt (102), and the packaging film is heat-sealed via the heat sealing mechanism (104); Finally, the heat-sealed packaging film can be inspected by the inspection component (200).

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