A novel hot pressing mechanism

Abstract

This utility model relates to the field of disposable hygiene product production equipment, and particularly to a novel hot pressing mechanism suitable for the production of adult pull-up pants and menstrual pants, which is compact in structure, low in cost, and high in production efficiency. It includes a frame, a hot pressing roller, a bottom roller, an upper bearing seat, a lower bearing seat, an upper heating component, and a lower heating component. The axial ends of the hot pressing roller are rotatably mounted on the frame via the upper bearing seats. The hot pressing roller includes a hot pressing roller shaft, a hot pressing roller body, an upper base, an upper adjusting seat, and an upper locking bolt. The hot pressing roller body and the upper base are both sleeved on the hot pressing roller shaft. The axial outer end of the upper base is provided with a first upper protective tooth ring. The upper adjusting seat is sleeved on the upper base and locked to the upper base by the upper locking bolt. The axial outer end of the hot pressing roller body is provided with a second upper protective tooth ring. Three hot pressing protrusions are sleeved on the circumferential surface of the hot pressing roller body, and the three hot pressing protrusions are evenly distributed on the circumferential surface of the hot pressing roller body. The upper heating component is located at the hot pressing protrusions.

Description

Technical Field

[0001] This utility model relates to the field of disposable hygiene product production equipment, and in particular to a novel hot pressing mechanism. Background Technology

[0002] On January 12, 2016, the applicant applied for a utility model patent entitled "A Hot Press Knife Holder Device," with patent application number 201620025330.0. The patent specifically discloses a device comprising a knife holder, an upper knife roller assembly, a lower knife roller assembly, a first pushing mechanism, a second pushing mechanism, a first guide rod, a second guide rod, a first spring, a second spring, a first adjusting mechanism, and a second adjusting mechanism. The knife holder includes an upper top plate, a base, a left side plate, a right side plate, and a fixed support plate. One end of the left side plate and one end of the right side plate are fixedly mounted on the base. The other ends of the left side plate and the right side plate are respectively fixedly connected to the two ends of the upper top plate. The fixed support plate is fixed between the middle of the left side plate and the middle of the right side plate. The first adjusting mechanism and the second adjusting mechanism are respectively disposed at the upper middle positions of the left side plate and the right side plate. Fixed to the top plate, the upper cutter roller assembly is connected at both ends to the first adjustment mechanism and the second adjustment mechanism respectively, and is vertically adjustable between the left and right side plates. The first push mechanism and the second push mechanism are respectively located at the lower middle position of the left and right side plates and are both fixed to the base. One end of the first guide rod and one end of the second guide rod are respectively connected to the first push mechanism and the second push mechanism. The other end of the first guide rod and the other end of the second guide rod are respectively fixedly connected to both ends of the lower cutter roller assembly and are vertically adjustable between the left and right side plates. The end of the upper cutter roller assembly located on the left side plate is flexibly vertically connected to the left end of the lower cutter roller assembly through the first spring. The end of the upper cutter roller assembly located on the right side plate is flexibly vertically connected to the right end of the lower cutter roller assembly through the second spring.

[0003] The aforementioned patent discloses the basic structure of existing embossing cutter holders. In the field of disposable hygiene products, the structures used for embossing and hot-pressing are basically the same. The purpose is to achieve thermoplastic deformation or thermoplastic bonding of layered materials through the rolling of heated rollers. However, for adult pull-up pants or menstrual pants, the upper and lower cutter rollers rotate with two pieces at a time, making the mechanism very large, costly, noisy, and with a large impact force during use. The service life is extremely short, and the seal is not strong enough at high speeds, and the bonding strength does not meet the requirements, thus limiting the speed of the entire machine. Utility Model Content

[0004] Therefore, in view of the above problems, this utility model provides a new type of hot pressing mechanism that is suitable for the production of adult pull-up pants and menstrual pants, and has a compact structure, low cost and high production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel hot pressing mechanism includes a frame, a hot pressing roller, a bottom roller, an upper bearing seat, a lower bearing seat, an upper heating component, and a lower heating component. The two axial ends of the hot pressing roller are rotatably mounted on the frame via the upper bearing seats. The hot pressing roller includes a hot pressing roller shaft, a hot pressing roller body, an upper base, an upper adjusting seat, and an upper locking bolt. The hot pressing roller body and the upper base are both sleeved on the hot pressing roller shaft and distributed on both axial sides of the hot pressing roller shaft. The outer axial end of the upper base is provided with a first upper protective tooth ring. The upper adjusting seat is sleeved on the upper base and locked to the upper base by the upper locking bolt. The outer axial end of the hot pressing roller body is provided with a second upper protective tooth ring. Three hot pressing protrusions are sleeved on the circumferential surface of the hot pressing roller body. The three hot pressing protrusions are evenly distributed on the circumferential surface of the hot pressing roller body. The upper heating component is located at the hot pressing protrusions.

[0007] The bottom roller is rotatably mounted on the frame at both axial ends via lower bearing seats. The bottom roller includes a bottom roller shaft, a bottom roller body, a lower base, a lower adjusting seat, and a lower locking bolt. The bottom roller body and the lower base are both sleeved on the bottom roller shaft and distributed on both axial sides of the bottom roller shaft. The lower base has a first lower protective tooth ring at its axial outer end. The lower adjusting seat is sleeved on the lower base and locked to the lower base by the lower locking bolt. The bottom roller body has a second lower protective tooth ring at its axial outer end. Two bottom roller protrusions are protruding on the circumferential surface of the bottom roller body. The two bottom roller protrusions are evenly distributed on the circumferential surface of the bottom roller body. The lower heating component is located at the bottom roller protrusion. When the hot pressing roller and the bottom roller rotate, one of the hot pressing protrusions rolls against one of the bottom roller protrusions.

[0008] Furthermore, the end face of the hot-pressing protrusion is provided with axially distributed hot-pressing roller heating tube holes, hot-pressing roller thermocouple holes, and hot-pressing roller heat dissipation holes.

[0009] Furthermore, the upper heating assembly includes a heating tube disposed in the heating tube hole of the heating roller and a thermocouple disposed in the thermocouple hole of the heating roller.

[0010] Furthermore, the hot press roller is equipped with an upper temperature sensor.

[0011] Furthermore, a first connecting hole is provided at the central axis of the hot press roller shaft, a second connecting hole is provided on the hot press roller shaft to connect the first connecting hole and the circumferential surface of the hot press roller shaft, a third connecting hole is provided on the upper base to connect with the second connecting hole, a first rotary connector is provided at one end of the hot press roller shaft, the first rotary connector is connected to the frame through a first fixing member, and the connecting wires of the upper temperature sensor, the hot press roller heating tube, and the hot press roller thermocouple are connected to the outside through the first connecting hole, the second connecting hole, the third connecting hole, and the first rotary connector.

[0012] Furthermore, the end face of the bottom roller protrusion is provided with bottom roller heating tube holes, bottom roller thermocouple holes and bottom roller heat dissipation holes distributed along the axial direction.

[0013] Furthermore, the lower heating assembly includes a bottom roller heating tube disposed in the bottom roller heating tube hole and a bottom roller thermocouple disposed in the bottom roller thermocouple hole.

[0014] Furthermore, a lower temperature sensor is provided on the bottom roller.

[0015] Furthermore, a fourth connecting hole is provided at the central axis of the bottom roller shaft, a fifth connecting hole is provided on the bottom roller shaft to connect the fourth connecting hole and the circumferential surface of the bottom roller shaft, a sixth connecting hole is provided on the lower base to connect with the fifth connecting hole, a second rotary connector is provided at one end of the bottom roller shaft, the second rotary connector is connected to the frame through a second fixing member, and the connecting wires of the lower temperature sensor, the bottom roller heating tube, and the bottom roller thermocouple are connected to the outside through the fourth connecting hole, the fifth connecting hole, the sixth connecting hole, and the second rotary connector.

[0016] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: This novel hot-pressing mechanism, through the rational arrangement of the hot-pressing roller and bottom roller structure, is more compact and effectively reduces costs compared to the existing technology where the upper and lower cutting rollers, each rotating two pieces, result in a bulky mechanism for the production of adult pull-up pants or menstrual pants. Furthermore, the hot-pressing roller has three hot-pressing protrusions, and the bottom roller has two bottom roller protrusions, ensuring that each hot-pressing protrusion is fixed to only one bottom roller protrusion for mutual rolling. This allows for different patterns to be set on different hot-pressing protrusions to meet customer needs, and also allows for different patterns to be set on different bottom roller protrusions. The corresponding settings have enabled hot pressing of products of different thicknesses. This design also aims to solve the dynamic balance problem. Compared with existing hot pressing mechanisms, it can effectively improve precision. However, if a hot pressing protrusion or a bottom roller protrusion is used, it will cause jumping during rotation, especially at high speeds. This jumping will affect the service life of the hot knife roller or hot light roller. At the same time, this compact and optimized structural design makes the operation more stable during the production process, reduces the instability factors caused by the bulky structure, improves production efficiency, and can better meet the needs of adult pull-up pants and menstrual pants production. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the right side structure of an embodiment of this utility model. Detailed Implementation

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0020] The embodiment of this utility model is as follows:

[0021] refer to Figure 1 and Figure 2 As shown, a novel hot pressing mechanism includes a frame 1, a hot pressing roller 2, a bottom roller 3, an upper bearing seat 411, a lower bearing seat 42, an upper heating assembly 5, and a lower heating assembly 6. The axial ends of the hot pressing roller 2 are rotatably mounted on the frame 1 via the upper bearing seat 41. The hot pressing roller 2 includes a hot pressing roller shaft 21, a hot pressing roller body 22, an upper base 23, an upper adjusting seat 24, and upper locking bolts. The hot pressing roller body 22 and the upper base 23 are both sleeved on the hot pressing roller shaft 2 and distributed along the hot pressing roller shaft 2. On both sides of the roller shaft 21, the outer end of the upper base 23 is provided with a first upper toothed ring 25, the upper adjusting seat 24 is sleeved on the upper base 23 and locked on the upper base 23 by an upper locking bolt, the outer end of the hot press roller body 22 is provided with a second upper toothed ring 26, and three hot press protrusions 20 are sleeved on the circumferential surface of the hot press roller body 22. The three hot press protrusions 20 are evenly distributed on the circumferential surface of the hot press roller body 22, and the upper heating component 5 is provided at the hot press protrusions 20.

[0022] The bottom roller 3 is rotatably mounted on the frame 1 at both axial ends via lower bearing seats 42. The bottom roller 3 includes a bottom roller shaft 31, a bottom roller body 32, a lower base 33, a lower adjusting seat 34, and lower locking bolts. The bottom roller body 32 and the lower base 33 are both sleeved on the bottom roller shaft 31 and distributed on both axial sides of the bottom roller shaft 31. The lower base 33 has a first lower protective tooth ring 35 at its axial outer end, and the lower adjusting seat 34 is sleeved on the lower base 33. The bottom roller body 32 is locked to the lower base 33 by a lower locking bolt. The outer axial end of the bottom roller body 32 is provided with a second lower guard ring 36. Two bottom roller protrusions 30 are protruding on the circumferential surface of the bottom roller body 32. The two bottom roller protrusions 30 are evenly distributed on the circumferential surface of the bottom roller body 32. The lower heating component 6 is located at the bottom roller protrusion 30. When the hot pressing roller 2 and the bottom roller 3 rotate, one of the hot pressing protrusions 20 and one of the bottom roller protrusions 30 roll cut each other.

[0023] This novel hot-pressing mechanism, through a rational arrangement of the hot-pressing roller 2 and the bottom roller 3, is more compact and effectively reduces costs compared to the bulky mechanisms in existing technologies used for producing adult pull-up pants or menstrual pants, where the upper and lower cutting rollers each rotate two pieces. Furthermore, the hot-pressing roller 2 has three hot-pressing protrusions 20, and the bottom roller 3 has two bottom roller protrusions 30. This ensures that each hot-pressing protrusion 20 is fixed to only one bottom roller protrusion 30, allowing for different patterns to be set on different hot-pressing protrusions 20 to meet customer needs, and also enabling corresponding settings on different bottom roller protrusions 30. Hot pressing of products of different thicknesses has been achieved. This design also aims to solve the dynamic balance problem. Compared with existing hot pressing mechanisms, it can effectively improve precision. However, if a hot pressing protrusion 20 or a bottom roller protrusion 30 is used, it will cause vibration during rotation, especially at high speeds. This vibration will affect the service life of the hot knife roller or hot light roller. At the same time, this compact and optimized structural design makes the operation more stable during production, reduces the instability caused by the bulky structure, improves production efficiency, and can better meet the needs of adult pull-up pants and menstrual pants production.

[0024] Specifically, the end face of the hot-pressing protrusion 20 is provided with axially distributed hot-pressing roller heating tube holes 101, hot-pressing roller thermocouple holes 102, and hot-pressing roller heat dissipation holes 103, which can accurately control the temperature at the hot-pressing protrusion 20. The hot-pressing roller heating tube 101 facilitates the installation of heating tubes to provide heat for hot pressing; the hot-pressing roller thermocouple holes 102 are used to install thermocouples and monitor the temperature in real time; the hot-pressing roller heat dissipation holes 103 can dissipate heat in time when the temperature is too high, ensuring the stability and uniformity of temperature during hot pressing, thereby improving the hot pressing quality and making the product bonding effect better.

[0025] Furthermore, the upper heating assembly 5 includes a hot-pressing roller heating tube 51 disposed within the hot-pressing roller heating tube hole 101 and a hot-pressing roller thermocouple 52 disposed within the hot-pressing roller thermocouple hole 102. This arrangement integrates heating and temperature monitoring. The hot-pressing roller heating tube 51 can stably provide the heat required for hot pressing, ensuring the smooth progress of the hot pressing process; the hot-pressing roller thermocouple 52 can accurately provide real-time temperature feedback, facilitating the adjustment of heating power according to actual needs, further ensuring precise control of the hot pressing temperature, and improving product quality and production stability.

[0026] Meanwhile, the hot press roller 2 is equipped with an upper temperature sensor 7, which can monitor the overall temperature of the hot press roller more comprehensively and in real time. In conjunction with the hot press roller thermocouple 52, the upper temperature sensor 7 can acquire temperature data from different positions and angles, providing richer reference information for precise control of the hot pressing temperature. This helps to detect temperature anomalies in a timely manner and make adjustments, avoiding the impact of uneven temperature or excessively high or low temperatures on product quality, and improving the reliability and stability of production.

[0027] Furthermore, a first connecting hole 104 is provided at the central axis of the hot press roller shaft 21, and a second connecting hole 105 is provided on the hot press roller shaft 21 to connect the first connecting hole 104 and the circumferential surface of the hot press roller shaft 21. A third connecting hole 106 is provided on the upper base 23 to connect with the second connecting hole 105. A first rotary connector 8 is provided at one end of the hot press roller shaft 21. The first rotary connector 8 is connected to the frame 1 through a first fixing member 9. The connecting wires of the upper temperature sensor 7, the hot press roller heating tube 51, and the hot press roller thermocouple 52 are connected to the outside through the first connecting hole 104, the second connecting hole 105, the third connecting hole 106, and the first rotary connector 8. This structural design cleverly solves the wiring problem of the connecting wires of the upper temperature sensor 7, the hot press roller heating tube 51, and the hot press roller thermocouple 52. The connecting wires are connected to the outside world through these holes and rotary connectors, which not only ensures that the connecting wires will not get tangled or be excessively stretched during the rotation of the hot press roller, thus ensuring the stability and safety of the electrical connection, but also makes the structure of the entire mechanism more compact and reasonable, and easier to install and maintain.

[0028] In this embodiment, the end face of the bottom roller protrusion 30 is provided with bottom roller heating tube holes 201, bottom roller thermocouple holes 202 and bottom roller heat dissipation holes 203 distributed along the axial direction; the lower heating assembly 6 includes a bottom roller heating tube 61 disposed in the bottom roller heating tube hole 201 and a bottom roller thermocouple 620 disposed in the bottom roller thermocouple hole 202; the bottom roller 3 is provided with a lower temperature sensor 10.

[0029] Furthermore, a fourth connecting hole 204 is provided at the central axis of the bottom roller shaft 31, and a fifth connecting hole 205 is provided on the bottom roller shaft 31 to connect the fourth connecting hole 204 and the circumferential surface of the bottom roller shaft 31. A sixth connecting hole 206 is provided on the lower base 33 to connect with the fifth connecting hole 205. A second rotary connector 11 is provided at one end of the bottom roller shaft 21. The second rotary connector 11 is connected to the frame 1 through the second fixing member 12. The connecting wires of the lower temperature sensor 10, the bottom roller heating tube 61, and the bottom roller thermocouple 62 are connected to the outside through the fourth connecting hole 104, the fifth connecting hole 105, the sixth connecting hole 106, and the second rotary connector 11.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A novel hot pressing mechanism, characterized in that: The device includes a frame, a hot press roller, a bottom roller, an upper bearing seat, a lower bearing seat, an upper heating assembly, and a lower heating assembly. The axial ends of the hot press roller are rotatably mounted on the frame via the upper bearing seats. The hot press roller includes a hot press roller shaft, a hot press roller body, an upper base, an upper adjusting seat, and an upper locking bolt. The hot press roller body and the upper base are both sleeved on the hot press roller shaft and distributed on both axial sides of the hot press roller shaft. The outer axial end of the upper base is provided with a first upper protective tooth ring. The upper adjusting seat is sleeved on the upper base and locked to the upper base by the upper locking bolt. The outer axial end of the hot press roller body is provided with a second upper protective tooth ring. Three hot press protrusions are sleeved on the circumferential surface of the hot press roller body. The three hot press protrusions are evenly distributed on the circumferential surface of the hot press roller body. The upper heating assembly is located at the hot press protrusions. The bottom roller is rotatably mounted on the frame at both axial ends via lower bearing seats. The bottom roller includes a bottom roller shaft, a bottom roller body, a lower base, a lower adjusting seat, and a lower locking bolt. The bottom roller body and the lower base are both sleeved on the bottom roller shaft and distributed on both axial sides of the bottom roller shaft. The lower base has a first lower protective tooth ring at its axial outer end. The lower adjusting seat is sleeved on the lower base and locked to the lower base by the lower locking bolt. The bottom roller body has a second lower protective tooth ring at its axial outer end. Two bottom roller protrusions are protruding on the circumferential surface of the bottom roller body. The two bottom roller protrusions are evenly distributed on the circumferential surface of the bottom roller body. The lower heating component is located at the bottom roller protrusion. When the hot pressing roller and the bottom roller rotate, one of the hot pressing protrusions rolls against one of the bottom roller protrusions.

2. The novel hot pressing mechanism according to claim 1, characterized in that: The end face of the hot-pressing protrusion is provided with axially distributed hot-pressing roller heating tube holes, hot-pressing roller thermocouple holes, and hot-pressing roller heat dissipation holes.

3. The novel hot pressing mechanism according to claim 2, characterized in that: The upper heating assembly includes a heating tube disposed in the heating tube hole of the heating roller and a thermocouple disposed in the thermocouple hole of the heating roller.

4. The novel hot pressing mechanism according to claim 3, characterized in that: The hot press roller is equipped with an upper temperature sensor.

5. The novel hot pressing mechanism according to claim 4, characterized in that: A first connecting hole is provided at the central axis of the hot press roller shaft. A second connecting hole is provided on the hot press roller shaft to connect the first connecting hole and the circumferential surface of the hot press roller shaft. A third connecting hole is provided on the upper base to connect with the second connecting hole. A first rotary connector is provided at one end of the hot press roller shaft. The first rotary connector is connected to the frame through a first fixing member. The connecting wires of the upper temperature sensor, the hot press roller heating tube, and the hot press roller thermocouple are connected to the outside through the first connecting hole, the second connecting hole, the third connecting hole, and the first rotary connector.

6. The novel hot pressing mechanism according to any one of claims 1 to 5, characterized in that: The raised end face of the bottom roller is provided with bottom roller heating tube holes, bottom roller thermocouple holes and bottom roller heat dissipation holes distributed along the axial direction.

7. The novel hot pressing mechanism according to claim 6, characterized in that: The lower heating assembly includes a bottom roller heating tube disposed in the bottom roller heating tube hole and a bottom roller thermocouple disposed in the bottom roller thermocouple hole.

8. The novel hot pressing mechanism according to claim 7, characterized in that: The bottom roller is equipped with a lower temperature sensor.

9. The novel hot pressing mechanism according to claim 8, characterized in that: A fourth connecting hole is provided at the central axis of the bottom roller shaft. A fifth connecting hole is provided on the bottom roller shaft to connect the fourth connecting hole and the circumferential surface of the bottom roller shaft. A sixth connecting hole is provided on the lower base to connect with the fifth connecting hole. A second rotary connector is provided at one end of the bottom roller shaft. The second rotary connector is connected to the frame through a second fixing member. The connecting wires of the lower temperature sensor, the bottom roller heating tube, and the bottom roller thermocouple are connected to the outside through the fourth connecting hole, the fifth connecting hole, the sixth connecting hole, and the second rotary connector.

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