Lifting mechanism for sanitary towel conveying chain and sanitary towel conveying chain

Abstract

The utility model relates to the technical field of sanitary towel packaging equipment, in particular to a lifting mechanism for a sanitary towel conveying chain and the sanitary towel conveying chain. The lifting mechanism comprises a first connecting plate and a second connecting plate, a third connecting plate is arranged on the first connecting plate in a sliding mode, and a first support and a second support which are used for forming a conveying frame are arranged on the third connecting plate in a sliding mode. A first driving assembly is arranged on the first connecting plate; a second driving assembly is arranged on the second connecting plate; the output end of the first driving assembly is fixedly connected with the third connecting plate; the output end of the second driving assembly is fixedly connected with the first support and in transmission connection with the second support. The lifting mechanism has a buffering function, and cannot press products in the descending process, so that the conveying chain can convey the products to a staying position in advance, and the waiting time of the conveying chain is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary napkin packaging equipment, and more specifically, to a lifting mechanism for a sanitary napkin conveying chain and a sanitary napkin conveying chain. Background Art

[0002] In widely used sanitary napkin packaging machines, an important functional component is the sanitary napkin conveying chain. The sanitary napkin conveying chain is a mechanism for completing the conveyance of a whole stack of sanitary napkins. Workers or other automatic equipment place stacks of sanitary napkins on the conveying grids of the sanitary napkin conveying chain (such as Figures 1 - 4 ), and the conveying chain conveys the sanitary napkins to the packaging mechanism. The conveying chain works in a rhythmic manner. For each stack of products (sanitary napkins) conveyed, it is necessary to wait for other mechanisms to lift the products to the packaging position on the conveying chain, and then wait at the packaging position for the push rod to push the products away from the lifting mechanism before the lifting mechanism can return to the initial position of the chain, and the chain can rotate to convey the next stack of products. The overall working process of this situation is: the conveying chain conveys a stack of products to the stop position → the lifting mechanism lifts the products to the packaging position → the push rod pushes the products away from the packaging position → the lifting mechanism descends to the stop position → the conveying chain conveys the next stack of products to the stop position.

[0003] The above working process is continuously cycled and can meet production requirements in general applications. However, in some special application scenarios, it is required that the conveying chain can convey the next stack of products to the stop position in advance to vacate the product placement opening as early as possible.

[0004] The reason why the existing sanitary napkin conveying chain cannot be applied to the above special scenarios is that the carrier plate of the lifting mechanism used to convey a whole stack of sanitary napkin products from the stop position to the packaging position can only move up and down in the vertical direction and has no buffering function. It is necessary to wait for the carrier plate of the lifting mechanism to descend from the packaging position to the stop position before conveying the next stack of sanitary napkin products. Otherwise, the carrier plate of the lifting mechanism will press the products during the descent. Summary of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present utility model is to provide a lifting mechanism for a sanitary napkin conveying chain, which has a buffering function and will not press the products during the descent, enabling the conveying chain to convey the products to the stop position in advance and shortening the waiting time of the conveying chain.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions:

[0007] A lifting mechanism for a sanitary napkin conveying chain, comprising: a first connecting plate and a second connecting plate mounted on the sanitary napkin conveying chain, a third connecting plate is slidably arranged on the first connecting plate, and a first bracket and a second bracket are slidably arranged on the third connecting plate; the first bracket and the second bracket form a conveying frame for conveying the sanitary napkin from a low position to a high position; a first driving component for driving the third connecting plate to slide in the vertical direction is arranged on the first connecting plate; a second driving component for driving the first bracket and the second bracket to slide in the horizontal direction in opposite directions is arranged on the second connecting plate; the output end of the first driving component is fixedly connected to the third connecting plate; the output ends of the second driving component are respectively fixedly connected to the first bracket and drivingly connected to the second bracket.

[0008] Optionally, the first driving component includes: a first motor, a first driving wheel, a first driven wheel, a first belt, and a first transmission member for driving the third connecting plate to slide; the fixed end of the first motor is fixedly connected to the first connecting plate; the first driving wheel is sleeved and fixed on the output shaft of the first motor; the first driven wheel is rotatably connected to the first connecting plate; one end of the first belt is sleeved on the outer edge of the first driving wheel, and the other end thereof is sleeved on the outer edge of the first driven wheel; one end of the first transmission member is fixedly connected to the first belt, and the other end thereof is fixedly connected to the third connecting plate.

[0009] Optionally, the second driving component includes: a second motor, a second driving wheel, a second driven wheel, a second belt, a second transmission member for driving the first bracket to slide, and a third transmission member for driving the second bracket to slide; the fixed end of the second motor is fixedly connected to the second connecting plate; the second driving wheel is sleeved and fixed on the output shaft of the second motor; the second driven wheel is rotatably connected to the second connecting plate; one end of the second belt is sleeved on the outer edge of the second driving wheel, and the other end thereof is sleeved on the outer edge of the second driven wheel; one end of the second transmission member is fixedly connected to one side of the second belt, and the other end thereof is drivingly connected to the first bracket; one end of the third transmission member is fixedly connected to the other side of the second belt, and the other end thereof is drivingly connected to the second bracket.

[0010] Optionally, the first bracket includes: a first lifting plate, a first loading plate for carrying the sanitary napkin, and a first protection plate for preventing the sanitary napkin from falling off the first loading plate; the top of the first loading plate is fixedly connected to the first protection plate, and the bottom thereof is fixedly connected to the first lifting plate; one side of the first lifting plate is slidably connected to the third connecting plate, and the other side thereof is drivingly connected to the other end of the second transmission member.

[0011] Optionally, the second bracket includes: a second lifting plate, a second loading plate for carrying sanitary napkins, and a second protective plate for preventing sanitary napkins from falling from the second loading plate; the top of the second loading plate is fixedly connected to the second protective plate, and the bottom of the second loading plate is fixedly connected to the second lifting plate; one side of the second lifting plate is slidably connected to the third connecting plate, and the other side of the second lifting plate is transmission connected to the other end of the third transmission member.

[0012] Optionally, the side wall of the first protective plate close to the second protective plate is provided with anti-slip grooves; the side wall of the second protective plate close to the first protective plate is provided with anti-slip grooves.

[0013] Another object of the utility model is to provide a sanitary napkin conveying chain, which is equipped with the above-mentioned lifting mechanism.

[0014] In summary, the utility model has the following beneficial effects: the first bracket and the second bracket are lowered from the packaging position to the stop position under the action of the first driving component and the third connecting plate. During this process, the second driving component first drives the first bracket and the second bracket to slide and open in the horizontal direction, so that a wide enough space is formed between the first bracket and the second bracket to avoid the product, and then the second driving component drives the first bracket and the second bracket to slide and close in the horizontal direction, so that when the first bracket and the second bracket are lowered to the stop position, the two are closed to the minimum position, and then the next lifting cycle is carried out. During this process, the conveyor chain can convey the product to the stop position in advance without waiting for the first bracket and the second bracket to descend to the stop position, thereby shortening the waiting time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an existing sanitary napkin conveyor chain when its lifting mechanism is in a packaging position;

[0016] Figure 2 is a side view of an existing sanitary napkin conveyor chain when its lifting mechanism is in a packaging position;

[0017] Figure 3 It is a structural schematic diagram of an existing sanitary napkin conveying chain when its lifting mechanism is in a rest position;

[0018] Figure 4 It is a side view of the existing sanitary napkin conveyor chain when its lifting mechanism is in the rest position;

[0019] Figure 5 It is a structural schematic diagram of a lifting mechanism for a sanitary napkin conveying chain in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the sanitary napkin conveying chain in the utility model;

[0021] Figure 7It is a side view of the sanitary napkin conveying chain in the present utility model.

[0022] In the figure: 1. First connecting plate; 2. Second connecting plate; 3. Third connecting plate; 4. First bracket; 41. First lifting plate; 42. First load-carrying plate; 43. First protective plate; 5. Second bracket; 51. Second lifting plate; 52. Second load-carrying plate; 53. Second protective plate; 6. First driving assembly; 61. First motor; 62. First driving wheel; 63. First driven wheel; 64. First belt; 65. First transmission member; 7. Second driving assembly; 71. Second motor; 72. Second driving wheel; 73. Second driven wheel; 74. Second belt; 75. Second transmission member; 76. Third transmission member; 8. Sanitary napkin; 9. Linear guide rail. Specific embodiments

[0023] To make the objectives, features, and advantages of the present utility model more apparent and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Several embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0024] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0025] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical", "horizontal", "left", "right", "above", "below" and similar expressions are for illustrative purposes only, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] The utility model provides a lifting mechanism for a sanitary napkin conveyor chain, such as Figures 5 - 7 As shown, it includes: a first connecting plate 1 and a second connecting plate 2 installed on the sanitary napkin conveying chain, a third connecting plate 3 is slidably arranged on the first connecting plate 1, and a first bracket 4 and a second bracket 5 are slidably arranged on the third connecting plate 3; the first bracket 4 and the second bracket 5 form a conveying frame for conveying the sanitary napkin 8 from a low position (staying position) to a high position (packaging position); a first driving component 6 for driving the third connecting plate 3 to slide in a vertical direction is arranged on the first connecting plate 1; a second driving component 7 for driving the first bracket 4 and the second bracket 5 to slide in the opposite direction in the horizontal direction is arranged on the second connecting plate 2; the output end of the first driving component 6 is fixedly connected to the third connecting plate 3; the output end of the second driving component 7 is respectively connected to the first bracket 4 and the second bracket 5 in a transmission manner.

[0028] The sanitary napkin conveyor chain is a conveying device that can convey several stacked sanitary napkins from the loading end to the stopping end (i.e., the stopping position), and further convey the sanitary napkins to the packaging position through a lifting mechanism installed at the stopping end. The specific structure can be found in at least CN107776954B patent.

[0029] In this embodiment, both the first connecting plate 1 and the second connecting plate 2 in the lifting mechanism for the sanitary napkin conveying chain are fixed at the stationary end of the sanitary napkin conveying chain by existing fixing methods such as screws, riveting, welding, etc. The essence of the functions of the first connecting plate 1 and the second connecting plate 2 is to provide installation positions for the first driving component 6 and the second driving component 7 respectively. In practical applications, the two can be connected to each other to form a base and installed on the frame of the sanitary napkin conveying chain, or the frame of the sanitary napkin conveying chain can be directly used as the component for fixing the first driving component 6 and the second driving component 7.

[0030] The third connecting plate 3 is located between the first connecting plate 1 and the second connecting plate 2. The right side of one end of it is slidably connected to the side wall of the first connecting plate 1 through a sliding member, and the right side of the other end of it is also slidably connected to the side wall of the first connecting plate 1 through a sliding member. The sliding direction is the vertical direction; the sliding member can at least adopt any one of the linear guide rail 9, linear bearing, and linear slide table in the existing technology, and preferably adopt the vertically installed linear guide rail 9 for connection.

[0031] The left side of one end of the third connecting plate 3 is slidably connected to the first bracket 4 through a horizontally installed linear guide rail, and the left side of the other end of it is slidably connected to the second bracket 5 through the linear guide rail 9; both the first bracket 4 and the second bracket 5 slide in the horizontal direction, and the sliding directions of the two are opposite.

[0032] The fixed end of the first driving component 6 is fixed on the first connecting plate 1 by existing methods such as screws, riveting, welding, etc. Its output end is fixedly connected to the third connecting plate 3, and then drives the third connecting plate 3, the first bracket 4, and the second bracket 5 to slide in the vertical direction in sequence. The fixed end of the second driving component 7 is fixed on the second connecting plate 2 by existing methods such as screws, riveting, welding, etc. Its output end is fixedly connected (or transmission-connected) to the first bracket 4 and the second bracket 5 respectively, and then drives the first bracket 4 and the second bracket 5 to slide in opposite directions in the horizontal direction, completing the process of closing and opening the conveying rack.

[0033] The working process of the present utility model is as follows: The conveying chain conveys a stack of products to the stationary position (at this time, the conveying rack formed by the first bracket 4 and the second bracket 5 is in a closed state) → The first driving component 6 drives the conveying rack to rise through the third connecting plate 3, and lifts the products from the stationary position to the packaging position (at this time, the conveying chain conveys the next stack of products to the stationary position) → The push rod in the conveying chain pushes the products away from the packaging position → The first driving component 6 drives the conveying rack to descend through the third connecting plate 3, and lowers the products from the packaging position to the stationary position (while descending, the second driving component 7 first drives the conveying rack to open to form enough space to avoid pressing the products, and then drives the conveying rack to close to prepare for conveying the next stack of products) → The conveying chain conveys the next stack of products to the stationary position.

[0034] In the above technical solution, the sanitary napkin conveying chain only needs to wait for the lifting mechanism to lift the product to the packaging position and then immediately convey the next stack of products to the stopping position. In contrast, the waiting time of the sanitary napkin conveying chain is reduced.

[0035] Furthermore, the first driving assembly 6 includes: a first motor 61, a first driving wheel 62, a first driven wheel 63, a first belt 64, and a first transmission member 65 for driving the third connecting plate 3 to slide; the fixed end of the first motor 61 is fixedly connected to the first connecting plate 1; the first driving wheel 62 is sleeved and fixed on the output shaft of the first motor 61; the first driven wheel 63 is rotatably connected to the first connecting plate 1; one end of the first belt 64 is sleeved on the outer edge of the first driving wheel 62, and the other end is sleeved on the outer edge of the first driven wheel 63; one end of the first transmission member 65 is fixedly connected to the first belt 64, and the other end is fixedly connected to the third connecting plate 3.

[0036] The base of the first motor 61 can be fixed to the first connecting plate 1 by screws, or can be fixed to the frame of the sanitary napkin conveying chain by screws as Figure 7 shown; the first driving wheel 62 is installed on the output shaft of the first motor 61. The first driven wheel 63 is installed on the first connecting plate 3 by means of cooperation between a bearing and a pin shaft, and can rotate around the pin shaft on the first connecting plate 3. The first belt 64 is an annular belt, and anti-slip teeth are provided on its inner side for adapting to the anti-slip teeth on the first driving wheel 62 and the anti-slip teeth on the first driven wheel 63. The first transmission member 65 is a clamping member commonly used in the field of belt transmission, and is composed of two clamping plates and screws for fixing the two clamping plates together; one end of the first transmission member 65 is clamped and fixed on one side of the first belt 64, and the other end is fixed to the third connecting plate 3 by screws.

[0037] Furthermore, the second driving assembly 7 includes: a second motor 71, a second driving wheel 72, a second driven wheel 73, a second belt 74, a second transmission member 75 for driving the first bracket 4 to slide, and a third transmission member 76 for driving the second bracket 5 to slide; the fixed end of the second motor is fixedly connected to the second connecting plate 2; the second driving wheel 72 is sleeved and fixed on the output shaft of the second motor 71; the second driven wheel 73 is rotatably connected to the second connecting plate 2; one end of the second belt 74 is sleeved on the outer edge of the second driving wheel 72, and the other end is sleeved on the outer edge of the second driven wheel 73; one end of the second transmission member 75 is fixedly connected to one side of the second belt 74, and the other end is in transmission connection with the first bracket 4; one end of the third transmission member 76 is fixedly connected to the other side of the second belt 74, and the other end is fixedly connected to the second bracket 5.

[0038] like Figure 5 and Figure 7 As shown, the base of the second motor 71 is fixed on the second connecting plate 2 by screws, and the second connecting plate 2 is fixed on the frame of the sanitary napkin conveying chain by screws; the second driving wheel 72 is installed on the output shaft of the second motor 71. The second passive wheel 73 is installed on the second connecting plate 2 by means of a bearing and a pin shaft, and can rotate on the second connecting plate 2 with the pin shaft as the center. The second belt 74 is an annular belt, and the inner side of the second belt is provided with anti-skid teeth, which are used to match the anti-skid teeth on the second driving wheel 72 and the anti-skid teeth on the second passive wheel 73. The second transmission member 75 and the third transmission member 76 are both clamping members commonly used in the field of belt transmission, and are composed of two clamping plates and screws for fixing the two clamping plates together; one end of the second transmission member 75 is clamped and fixed on one side of the second belt 74, and the other end is connected to the first bracket 4 through a linear guide rail 9; one end of the third transmission member 76 is clamped and fixed on the other side of the second belt 74, and the other end is connected to the second bracket 5 through a linear guide rail 9.

[0039] The second transmission member 75 and the third transmission member 76 are respectively installed on both sides of the second belt 74, so that only one motor is needed to simultaneously drive the first bracket 4 and the second bracket 5 to slide in opposite directions. Compared with the dual-motor solution, it has the advantages of low cost and high synchronization.

[0040] Furthermore, the first bracket 4 includes: a first lifting plate 41, a first loading plate 42 for carrying the sanitary napkin 8, and a first protective plate 43 for preventing the sanitary napkin 8 from falling from the first loading plate 42; the top of the first loading plate 42 is fixedly connected to the first protective plate 43, and the bottom thereof is fixedly connected to the first lifting plate 41; one side of the first lifting plate 41 is slidably connected to the third connecting plate 3, and the other side thereof is transmission-connected to the other end of the second transmission member 75.

[0041] Furthermore, the second bracket 5 includes: a second lifting plate 51, a second loading plate 52 for carrying the sanitary napkin 8, and a second protective plate 53 for preventing the sanitary napkin 8 from falling from the second loading plate 52; the top of the second loading plate 52 is fixedly connected to the second protective plate 53, and the bottom thereof is fixedly connected to the second lifting plate 51; one side of the second lifting plate 51 is slidably connected to the third connecting plate 3, and the other side thereof is transmission-connected to the other end of the third transmission member 76.

[0042] like Figure 5 and Figure 7As shown in the figure, the right side of the first lifting plate 41 is slidably connected to the third connecting plate 3 through a horizontally installed linear guide rail 9, so that when the third connecting plate 3 slides in the vertical direction, the first lifting plate 41 can be driven to move in the vertical direction through the linear guide rail 9. The left side of the first lifting plate 41 is drivingly connected to the other end of the second transmission member 75 through a vertically installed linear guide rail 9 (the guide rail in the linear guide rail 9 is fixedly connected to the first lifting plate 41 by screws, and the slider in the linear guide rail 9 is fixedly connected to the other end of the second transmission member 75 by screws), so that when the second transmission member 75 slides in the horizontal direction, the first lifting plate 41 can be driven to move in the horizontal direction through the linear guide rail 9.

[0043] Similarly, the right side of the second lifting plate 51 is slidably connected to the third connecting plate 3 through a horizontally installed linear guide rail 9, so that when the third connecting plate 3 slides in the vertical direction, the second lifting plate 51 can be driven to move in the vertical direction through the linear guide rail 9. The left side of the second lifting plate 51 is drivingly connected to the other end of the third transmission member 76 through a vertically installed linear guide rail 9 (the guide rail in the linear guide rail 9 is fixedly connected to the second lifting plate 51 by screws, and the slider in the linear guide rail 9 is fixedly connected to the other end of the third transmission member 76 by screws), so that when the third transmission member 76 slides in the horizontal direction, the second lifting plate 51 can be driven to move in the horizontal direction through the linear guide rail 9.

[0044] Furthermore, as Figure 5 shown, in order to increase the friction force of the first protective plate 43 and the second protective plate 53 on the product and prevent the product from falling off the conveying rack due to vibration during the lifting process, anti-slip patterns are provided on the first protective plate 43 and the second protective plate 53, and the anti-slip patterns are located on the side of each close to the product.

[0045] As Figure 6 shown, the present utility model also provides a sanitary napkin conveying chain, and a lifting mechanism with the above structure is installed at its stationary end.

[0046] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A lifting mechanism for a sanitary napkin conveyor chain, characterized in that: include: A first connecting plate and a second connecting plate are installed on the sanitary napkin conveying chain, a third connecting plate is slidably arranged on the first connecting plate, and a first bracket and a second bracket are slidably arranged on the third connecting plate; the first bracket and the second bracket form a conveying frame for conveying sanitary napkins from a low position to a high position; a first driving component for driving the third connecting plate to slide in a vertical direction is arranged on the first connecting plate; a second driving component for driving the first bracket and the second bracket to slide in opposite directions in a horizontal direction is arranged on the second connecting plate; the output end of the first driving component is fixedly connected to the third connecting plate; the output end of the second driving component is fixedly connected to the first bracket and transmission connected to the second bracket respectively.

2. The lifting mechanism according to claim 1, characterized in that: The first driving assembly includes: a first motor, a first driving wheel, a first passive wheel, a first belt, and a first transmission member for driving the third connecting plate to slide; the fixed end of the first motor is fixedly connected to the first connecting plate; the first driving wheel is sleeved and fixed on the output shaft of the first motor; the first passive wheel is rotatably connected to the first connecting plate; one end of the first belt is sleeved on the outer edge of the first driving wheel, and the other end thereof is sleeved on the outer edge of the first passive wheel; one end of the first transmission member is fixedly connected to the first belt, and the other end thereof is fixedly connected to the third connecting plate.

3. The lifting mechanism according to claim 2, characterized in that: The second driving assembly includes: a second motor, a second driving wheel, a second passive wheel, a second belt, a second transmission member for driving the first bracket to slide, and a third transmission member for driving the second bracket to slide; the fixed end of the second motor is fixedly connected to the second connecting plate; the second driving wheel is sleeved and fixed on the output shaft of the second motor; the second passive wheel is rotatably connected to the second connecting plate; one end of the second belt is sleeved on the outer edge of the second driving wheel, and the other end thereof is sleeved on the outer edge of the second passive wheel; one end of the second transmission member is fixedly connected to one side of the second belt, and the other end thereof is transmission-connected to the first bracket; one end of the third transmission member is fixedly connected to the other side of the second belt, and the other end thereof is transmission-connected to the second bracket.

4. The lifting mechanism according to claim 3, characterized in that: The first bracket includes: a first lifting plate, a first loading plate for carrying sanitary napkins, and a first protective plate for preventing sanitary napkins from falling from the first loading plate; the top of the first loading plate is fixedly connected to the first protective plate, and the bottom of the first loading plate is fixedly connected to the first lifting plate; one side of the first lifting plate is slidably connected to the third connecting plate, and the other side of the first lifting plate is transmission-connected to the other end of the second transmission member.

5. The lifting mechanism according to claim 4, characterized in that: The second bracket includes: a second lifting plate, a second loading plate for carrying sanitary napkins, and a second protective plate for preventing sanitary napkins from falling from the second loading plate; the top of the second loading plate is fixedly connected to the second protective plate, and the bottom of the second loading plate is fixedly connected to the second lifting plate; one side of the second lifting plate is slidably connected to the third connecting plate, and the other side of the second lifting plate is transmission-connected to the other end of the third transmission member.

6. The lifting mechanism according to claim 5, characterized in that: The side wall of the first protective plate close to the second protective plate is provided with anti-slip grooves; the side wall of the second protective plate close to the first protective plate is provided with anti-slip grooves.

7. A sanitary napkin conveyor chain, characterized in that: Comprising the lifting mechanism described in any one of claims 1-6.

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