A continuous antirust bag heat sealing machine

Abstract

This utility model relates to the field of bag heat sealing machine technology, and discloses a continuous rust-proof bag heat sealing machine, including a base, a pressing assembly, and a driving rod; it also includes a limiting mechanism. The pressing assembly includes a pressing plate and a cylinder for driving the pressing plate, and the driving rod is connected to the top of the pressing plate. The limiting mechanism includes a limiting shell with an internal oil storage groove, and the driving rod slidably passes through the limiting shell. Multiple balls, partially immersed in lubricating oil, are rotatably connected to the inner wall of the limiting shell. When the driving rod moves, the balls rotate and automatically coat the surface of the driving rod with lubricating oil. Preferably, a heat fusion plate is also connected to the bottom of the pressing plate through an installation mechanism including a fixed column, a sliding rod, balls, and a limiting ring, enabling quick assembly and disassembly of the heat fusion plate. This utility model effectively reduces component wear and extends equipment life through its automatic lubrication structure, and significantly improves maintenance efficiency through its quick-change installation mechanism.

Description

Technical Field

[0001] This utility model relates to the field of bag heat sealing machine technology, and in particular to a continuous rust-proof bag heat sealing machine. Background Technology

[0002] Heat sealing machines, as an important packaging equipment, are widely used in many industries. They seal the opening of plastic bags by heating and pressurizing. For products that require long-term storage and protection against moisture and oxidation, such as metal parts, rust-proof bags are usually used for packaging. The quality of heat sealing directly affects the airtightness of the packaging and the protective effect on the product.

[0003] In existing heat sealing machines, a drive mechanism and a heat sealing head that can reciprocate up and down are usually installed to achieve the sealing of the bag opening. To ensure the stability and accuracy of the heat sealing head during movement, the drive mechanism often includes linear motion components such as guide rods and drive rods. These moving components will continuously generate friction during long-term, high-frequency operation of the equipment, leading to wear and heat generation.

[0004] To mitigate wear and ensure smooth operation, current technologies typically employ manual, periodic lubrication of moving parts. This maintenance method has significant drawbacks: firstly, manual lubrication requires machine shutdown, interrupting the production process and reducing overall efficiency; secondly, lubrication relies heavily on the experience and responsibility of the operators, making it prone to delays, uneven application, or omissions. This accelerates component wear, reduces equipment lifespan, and in severe cases, can even lead to equipment jamming or damage, impacting production stability.

[0005] Therefore, this utility model proposes a continuous heat-sealing machine for rust-proof bags to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a continuous rust-proof bag heat sealing machine, which aims to improve the problems of some heat sealing machines in the prior art, such as the need for regular manual lubrication of moving parts, inconvenient maintenance, and easy aggravation of wear due to poor lubrication.

[0007] This utility model provides a continuous rust-proof bag heat sealing machine, including: a base, a pressing assembly, the pressing assembly including a pressing plate and a cylinder for driving the pressing plate to reciprocate up and down, and a driving rod; and a limiting mechanism. The limiting mechanism includes a limiting shell, the interior of which has a storage tank for containing lubricating oil, and multiple ball bearings rotatably connected to the inner wall of the limiting shell. Furthermore, the lower end of the driving rod is fixedly connected to the top of the pressing plate, and the driving rod slidably passes through the limiting shell. The multiple ball bearings are configured to be partially immersed in the lubricating oil in the storage tank, so that when the driving rod moves, the rotation of the ball bearings automatically coats the surface of the driving rod with lubricating oil.

[0008] Preferably, the side wall of the limiting shell is provided with a feed port that communicates with the storage tank, and a piston is detachably and sealed inside the feed port. This design makes the operation of adding lubricating oil to the storage tank simple and intuitive, without the need to disassemble the equipment, which facilitates quick maintenance by the user.

[0009] Preferably, the bottom of the lower pressure plate is connected to a heat-melting plate via an installation mechanism. The installation mechanism is used to enable quick assembly and disassembly of the heat-melting plate, which allows the heat-melting plate, as a vulnerable part, to be replaced quickly, greatly reducing downtime caused by maintenance and replacement of parts.

[0010] Preferably, the installation mechanism includes a fixed column and a sliding rod; the fixed column is fixedly connected to the bottom of the lower pressure plate, the upper end of the sliding rod is pluggably fitted into the fixed column, and the lower end of the sliding rod is connected to a heat-melting plate. This modular pluggable connection simplifies the installation relationship between the heat-melting plate assembly and the main body.

[0011] Preferably, the side wall of the fixed column has a radial through hole, and a second ball bearing is rotatably connected inside the through hole; the outer peripheral wall of the sliding rod has an annular groove for the second ball bearing to be inserted.

[0012] Preferably, the mounting mechanism further includes a limiting ring and a squeezing ring; the limiting ring is slidably fitted onto the outside of the fixed column; the squeezing ring is fixedly connected to the inner peripheral wall of the limiting ring and located on the outside of the second ball; the axial movement of the limiting ring can directly control the action state of the squeezing ring on the second ball.

[0013] Preferably, the inner surface of the compression ring is formed as a slope structure that can selectively compress the second ball into the annular groove or allow the second ball to exit outward. Through this slope, the axial sliding action of the limiting ring can be efficiently converted into the radial locking or releasing action of the second ball. The structure is simple and the transmission is effective.

[0014] Preferably, the mounting mechanism also includes a spring, which is sleeved on the outside of the fixed column, and the two ends of the spring abut against the bottom of the lower pressure plate and the limiting ring, respectively. The spring continuously applies upward force to the limiting ring to ensure that the mounting mechanism is always in a reliable locked state when there is no external force operation, thus preventing accidental loosening.

[0015] This utility model has the following beneficial effects: 1. This utility model, by setting a limiting shell, a storage groove and a rotatable ball bearing, enables the ball bearing to automatically apply the lubricating oil in the storage groove to the surface of the driving rod when the driving rod moves up and down. This solves the problem in the prior art that the moving parts of the heat sealing machine need to be manually lubricated regularly, which is inconvenient to maintain and easy to wear due to untimely lubrication. It achieves the technical effect of real-time and automatic lubrication of key moving parts, extending the service life of the equipment and improving the operational stability.

[0016] 2. This utility model, by setting up an installation mechanism composed of a fixed column, a sliding rod, a ball bearing, a limiting ring, a compression ring, and a spring, realizes the rapid disassembly and assembly of the hot melt plate. It solves the problems of the existing technology that require tools, are cumbersome to operate, and are time-consuming when replacing vulnerable parts such as heat sealing heads. It achieves the technical effect of quickly replacing or repairing the hot melt plate without tools, significantly shortening equipment downtime for maintenance, and improving production efficiency.

[0017] 3. This utility model provides a convenient way to replenish lubricating oil for automatic lubrication systems by setting a refueling structure consisting of a feed port and a piston on the limiting shell. It solves the problems of complex structure and difficult refueling in some automatic lubrication devices, and achieves the technical effect of allowing operators to intuitively and quickly replenish lubricating oil for the equipment, simplifying the maintenance process and improving the ease of use of the equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a continuous rust-proof bag heat sealing machine proposed in this utility model; Figure 2 This is a schematic diagram of the limiting shell of a continuous rust-proof bag heat sealing machine proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the extrusion ring structure of a continuous rust-proof bag heat sealing machine proposed in this utility model.

[0019] Legend: 1. Base; 2. Lowering assembly; 21. Cylinder; 22. Lowering plate; 3. Limiting mechanism; 31. Limiting housing; 32. Driving rod; 33. Feed inlet; 34. Piston; 35. Ball bearing 1; 4. Mounting mechanism; 41. Fixing column; 42. Ball bearing 2; 43. Restricting ring; 44. Compression ring; 45. Sliding rod; 46. Spring; 47. Hot melt plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Reference Figures 1 to 4 This utility model provides a continuous rust-proof bag heat sealing machine, which aims to solve the problems of inconvenient lubrication of moving parts and cumbersome replacement of heat sealing heads in the prior art.

[0022] like Figure 1 and Figure 2 As shown, the machine includes a base 1 and a pressing assembly 2 mounted on top of the base 1. The base 1 provides stable support for the entire machine, and the pressing assembly 2 performs the heat sealing action. The pressing assembly 2 includes a pressing plate 22 and a cylinder 21 for driving the pressing plate 22 to move up and down reciprocally. The lower end of a driving rod 32 is fixedly connected to the top of the pressing plate 22. This continuous rust-proof bag heat sealing machine also includes a limiting mechanism 3, which includes a limiting shell 31. The driving rod 32 is slidably inserted into the limiting shell 31. The interior of the 1 has a storage tank for holding lubricating oil. Multiple balls 35 are rotatably connected to the inner wall of the limiting shell 31. The multiple balls 35 are configured to be partially immersed in the lubricating oil in the storage tank. When the cylinder 21 drives the lower pressure plate 22 to move the driving rod 32 up and down, the outer wall of the driving rod 32 will push the balls 35 to rotate. The surface of the balls 35 immersed in the lubricating oil will evenly coat the lubricating oil onto the outer surface of the driving rod 32, realizing automatic lubrication, reducing friction and extending service life.

[0023] Reference Figure 2 and Figure 3 The side wall of the limiting shell 31 is provided with a feed port 33 that communicates with the storage tank. A piston 34 is detachably sealed inside the feed port 33. When it is necessary to add lubricating oil, the piston 34 can be pulled out from the feed port 33 and lubricating oil can be added to the storage tank through the feed port 33. The operation is simple and quick. In order to realize the heat sealing function, the bottom of the lower pressure plate 22 is connected to the heat fusion plate 47 through the mounting mechanism 4. The mounting mechanism 4 is used to realize the quick disassembly and assembly of the heat fusion plate 47, which is a vulnerable part. This facilitates the replacement or maintenance of the heat fusion plate 47, which is a vulnerable part, and improves the maintainability of the equipment.

[0024] Reference Figure 2 and Figure 4 The mounting mechanism 4 includes a fixed post 41 and a sliding rod 45. The fixed post 41 is fixedly connected to the bottom of the lower pressure plate 22. The upper end of the sliding rod 45 is pluggably fitted into the fixed post 41. The lower end of the sliding rod 45 is connected to a heat-melting plate 47. This structure realizes the modular connection between the heat-melting plate 47 and the lower pressure plate 22. A radial through hole is opened on the side wall of the fixed post 41. A ball bearing 42 is rotatably connected in the through hole. An annular groove for the ball bearing 42 to be inserted is opened on the outer peripheral wall of the sliding rod 45. The ball bearing 42 can lock or release the sliding rod 45 by inserting or disengaging from the annular groove.

[0025] The mounting mechanism 4 also includes a limiting ring 43 and a squeezing ring 44. The limiting ring 43 is slidably sleeved on the outside of the fixed column 41. The squeezing ring 44 is fixedly connected to the inner peripheral wall of the limiting ring 43 and is located on the outside of the ball bearing 42. The position of the squeezing ring 44 can be controlled by the up and down movement of the limiting ring 43.

[0026] The mounting mechanism 4 also includes a spring 46, which is sleeved on the outside of the fixed post 41. The two ends of the spring 46 abut against the bottom of the lower pressure plate 22 and the limiting ring 43, respectively. The spring 46 continuously applies upward force to the limiting ring 43, so that it always remains in the locked position when there is no external force, thus ensuring the reliability of the connection.

[0027] The implementation principle of this application embodiment is as follows: When performing heat sealing operation, cylinder 21 is started and pushes the lower pressure plate 22 downward. The hot melt plate 47 installed at the bottom of the lower pressure plate 22 then descends to press and heat seal the rust-proof bag. During this process, the driving rod 32 fixed to the top of the lower pressure plate 22 moves downward synchronously and passes through the limiting shell 31. The movement of the driving rod 32 will cause multiple balls 35 in the limiting shell 31 to rotate. Since the balls 35 are partially immersed in the lubricating oil in the storage tank, when rotating, the lubricating oil is automatically and evenly coated on the outer wall of the driving rod 32, thereby completing automatic lubrication once in each heat sealing action, ensuring smooth movement and low wear.

[0028] When the heat-melting plate 47 needs to be replaced, the operator pulls down the limiting ring 43. The limiting ring 43 will drive the compression ring 44 to move downward against the elastic force of the spring 46. After the inclined surface of the compression ring 44 disengages from the compression of the second ball 42, the second ball 42 can retract outward into the through hole and no longer get stuck in the annular groove of the sliding rod 45. At this time, the lock between the sliding rod 45 and the fixed post 41 is released, and the sliding rod 45 connected to the heat-melting plate 47 can be directly pulled out from the fixed post 41 to complete the disassembly. During installation, the operation is reversed. After inserting the sliding rod 45 into the fixed post 41, the limiting ring 43 is released. The spring 46 automatically pushes the limiting ring 43 and the compression ring 44 upward. The compression ring 44 squeezes the second ball 42 into the annular groove again to achieve quick locking.

Claims

1. A continuous heat-sealing machine for rust-proof bags, comprising: Base (1); The pressing assembly (2) is installed on the top of the base (1). The pressing assembly (2) includes a pressing plate (22) and a cylinder (21) for driving the pressing plate (22) to move up and down reciprocally. Drive rod (32), the lower end of which is fixedly connected to the top of the lower pressure plate (22); The feature is that it further includes a limiting mechanism (3), the limiting mechanism (3) includes a limiting shell (31), and the driving rod (32) is slidably inserted into the limiting shell (31); The limiting shell (31) has a storage tank inside for holding lubricating oil; A plurality of ball bearings (35) are rotatably connected to the inner wall of the limiting shell (31), and the plurality of ball bearings (35) are configured to be partially immersed in the lubricating oil in the storage tank.

2. The continuous rust-proof bag heat-sealing machine according to claim 1, characterized in that, The side wall of the limiting shell (31) is provided with a feed port (33) that communicates with the storage tank, and a piston (34) is detachably and sealed inside the feed port (33).

3. The continuous rust-proof bag heat-sealing machine according to claim 1, characterized in that, The bottom of the lower pressure plate (22) is connected to a heat-melting plate (47) via an installation mechanism (4), which is used to enable quick assembly and disassembly of the heat-melting plate (47).

4. The continuous rust-proof bag heat-sealing machine according to claim 3, characterized in that, The installation mechanism (4) includes a fixed column (41) and a sliding rod (45); The fixed column (41) is fixedly connected to the bottom of the lower pressure plate (22), the upper end of the sliding rod (45) is pluggably fitted into the fixed column (41), and the lower end of the sliding rod (45) is connected to the heat-melting plate (47).

5. The continuous rust-proof bag heat-sealing machine according to claim 4, characterized in that, The side wall of the fixed column (41) is provided with a radial through hole, and a ball bearing (42) is rotatably connected in the through hole; The outer peripheral wall of the sliding rod (45) is provided with an annular groove for the ball bearing (42) to be inserted.

6. The continuous rust-proof bag heat-sealing machine according to claim 5, characterized in that, The mounting mechanism (4) further includes a limiting ring (43) and a squeezing ring (44); The limiting ring (43) is slidably sleeved on the outside of the fixed post (41), and the compression ring (44) is fixedly connected to the inner peripheral wall of the limiting ring (43) and located on the outside of the second ball (42).

7. The continuous rust-proof bag heat-sealing machine according to claim 6, characterized in that, The inner surface of the extrusion ring (44) is formed as a sloping structure that can selectively extrude the second ball (42) into the annular groove or allow the second ball (42) to retract outward.

8. The continuous rust-proof bag heat-sealing machine according to claim 6, characterized in that, The mounting mechanism (4) also includes a spring (46), which is sleeved on the outside of the fixed post (41), and the two ends of the spring (46) abut against the bottom of the lower pressure plate (22) and the limiting ring (43) respectively, for applying upward force to the limiting ring (43).

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