Heating positioning structure of hot air sealing machine

Abstract

The utility model belongs to the technical field of hot air sealing and sealing machines, and particularly relates to a heating and positioning structure of a hot air sealing and sealing machine, which comprises a main machine frame and a swinging pushing and lifting mechanism arranged on the main machine frame, and a blocking threaded rod corresponding to the swinging pushing and lifting mechanism after swinging is arranged on the side face of the main machine frame. The swing pushing and lifting mechanism is correspondingly provided with a protective cover and an outer flow pipe, and the lower side of the outer flow pipe is arranged in the protective cover and installed on the other side face of the main machine frame. According to the utility model, through the cooperation of the swinging and lifting mechanism and the protective cover, the air pipe fitting can synchronously ascend and move while swinging and shifting, so that the air pipe fitting is aligned with the corresponding protective cover. According to the structure, an original mode that the rolling wheel is separated only through swinging deviation is improved into a composite motion combining swinging deviation and upward movement, so that the air pipe fitting and the protective cover can be far away from the rolling wheel to a greater extent, the smoothness of an operation area is effectively improved, and an operator can conveniently adjust the position of the tarpaulin or the waterproof cloth.

Description

Technical Field

[0001] This utility model belongs to the technical field of hot air sealing machine, specifically relating to a heating and positioning structure for a hot air sealing machine. Background Technology

[0002] In existing hot air seam sealing machines, the air ducts and nozzles are typically fixed or use simple swing mechanisms, making it difficult to achieve precise reciprocating positioning. During the sealing process, when the rollers heat-press the tarpaulin or waterproof fabric, the nozzles need to be precisely aligned with the rollers to ensure uniform hot air output. However, when the nozzles need to be temporarily removed from their working position, traditional structures often simply swing them away from the rollers, but the displaced nozzles and protective covers remain close to the rollers. This layout has significant drawbacks in actual operation: firstly, when adjusting the position of large tarpaulins or waterproof fabrics, the operator pulling on the fabric edges can easily cause collisions or snagging with the misaligned nozzle's outer protective cover, potentially leading to arm injuries or scratches on the fabric surface; secondly, the protective cover still occupies a large space when not in use, affecting the unobstructed flow of the operating area and potentially causing collisions due to rapid workpiece movement. Therefore, this invention proposes a new heating positioning structure for a hot air seam sealing machine to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this invention is to provide a heating and positioning structure for a hot air sealing machine, which can solve the above-mentioned technical problems.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] This utility model provides a heating and positioning structure for a hot air sealing machine, including a main frame and a swinging and lifting mechanism mounted on the main frame. The side of the main frame is provided with a blocking threaded rod corresponding to the swinging and lifting mechanism after swinging. The swinging and lifting mechanism is provided with a protective cover and an outflow pipe. The lower side of the outflow pipe is located inside the protective cover and is mounted on the other side of the main frame.

[0006] The swing lifting mechanism includes a push rod, a rotating mounting plate, a reciprocating rotating plate, and a slider. The rotating mounting plate is detachably mounted on the side of the main frame. The reciprocating rotating plate is located on the side corresponding to the rotating mounting plate and is fixedly connected to one side of the rotating shaft. The rotating shaft is rotatably engaged with the rotating mounting plate through a bearing.

[0007] The slider is configured as two pieces, both of which are slidably mounted on the guide rail. The guide rail is mounted on the reciprocating rotating plate. The side of the reciprocating rotating plate is provided with air duct fittings. The side of the main frame is provided with two sets of pipe clamping fittings, and the pipe clamping fittings include a clamping block and a pressing block. The pressing block presses the air duct fittings onto the clamping block with screws. The clamping block is mounted on the slider. The extended end of the push rod is provided with a push-pull sliding mechanism that cooperates with two sliders. The lower side of the reciprocating rotating plate is provided with an elastic pull-down mechanism that cooperates with the clamping block on the lower side.

[0008] Preferably, the push-pull sliding mechanism includes a concave buckle and a linkage plate. The concave buckle is snapped onto the opposite side of the linkage plate. The linkage plate is installed on the side of two snap-fit ​​blocks. The linkage plate has a movable hole, and a push shaft is movably fitted inside the movable hole. The push shaft is fixed on one side of the concave buckle, and the extended end of the push rod is installed on the other side of the concave buckle.

[0009] Preferably, the elastic pull-down mechanism includes a tension spring and a clamping screw. The clamping screw is fitted with a washer that presses against the upper side of the tension spring, and the clamping screw passes through the upper side of the tension spring and is threaded into a threaded hole, which is located on the side of the lower bayonet block.

[0010] Preferably, the lower side of the tension spring is fitted into a circular hole, and the circular hole is opened on a vertical ear plate, which is fixed to the lower side of the reciprocating rotating plate.

[0011] Preferably, a blocking mounting plate is installed on the side of the main frame, and two fixing lugs are fixed on the blocking mounting plate. The blocking threaded rod is threadedly engaged with the two fixing lugs.

[0012] Preferably, the center of the blocking threaded rod is aligned with the thickness center of the reciprocating rotating plate.

[0013] Preferably, baffles are installed on both sides of the guide rail to prevent the slider from disengaging.

[0014] Preferably, when the slider moves down to the lower side of the guide rail and contacts the baffle, the downward elastic force of its tension spring is set to 1.3 times its relaxed state.

[0015] The beneficial effects are:

[0016] 1. This utility model, through the cooperation of a swing-lifting mechanism and a protective cover, enables the ductwork components on the swing-lifting mechanism to swing and move upward simultaneously when they disengage from the rolling rollers, thereby aligning them with the corresponding protective cover. This structure improves upon the original method of relying solely on swing-off displacement to disengage from the rolling rollers, transforming it into a composite motion combining swing-off displacement and upward movement. This allows the ductwork components and protective cover to be further away from the rolling rollers, effectively increasing the unobstructed access to the operating area and facilitating the operator's adjustment of the tarpaulin or waterproof cloth position.

[0017] 2. This utility model, through the cooperation of the swing-pushing mechanism and the blocking threaded rod, can limit and block the reciprocating rotating plate and duct components that swing back and forth, thereby improving the positioning accuracy of the duct components when they return to the rolling roller. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the swing-lifting mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the explosion distribution structure of the swing-lifting mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the other side of the explosion distribution structure of the swing-lifting mechanism of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Main frame; 2. Swinging lifting mechanism; 21. Push rod; 22. Concave buckle; 22a. Push shaft; 23. Rotating mounting plate; 24. Rotating shaft; 25. Reciprocating rotating plate; 25a. Vertical ear plate; 26. Guide rail; 27. Slider; 28. Bayonet block; 28a. Clamping block; 29. ​​Linkage plate; 29a. Movable hole; 210. Tension spring; 211. Clamping screw; 212. Duct fitting; 3. Blocking threaded rod; 31. Blocking mounting plate; 32. Fixed ear plate; 4. Protective cover; 5. Outflow pipe. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1-4 As shown, a heating and positioning structure for a hot air sealing machine includes a main frame 1 and a swinging and lifting mechanism 2 mounted on the main frame 1. A blocking threaded rod 3 corresponding to the swinging and lifting mechanism 2 is provided on the side of the main frame 1. A protective cover 4 and an outflow pipe 5 are provided on the swinging and lifting mechanism 2. The lower side of the outflow pipe 5 is located inside the protective cover 4 and installed on the other side of the main frame 1.

[0026] The swing lifting mechanism 2 includes a push rod 21, a rotating mounting plate 23, a reciprocating rotating plate 25, and a slider 27. The rotating mounting plate 23 is detachably mounted on the side of the main frame 1. The reciprocating rotating plate 25 is located on the side corresponding to the rotating mounting plate 23 and is fixedly connected to one side of the rotating shaft 24. The rotating shaft 24 is rotatably engaged with the rotating mounting plate 23 through a bearing. The push rod 21 is a pneumatic push rod 21, an electric push rod 21, or other push rod 21.

[0027] Two sliders 27 are provided, both of which are slidably mounted on the guide rail 26. The guide rail 26 is mounted on the reciprocating rotating plate 25. The side of the reciprocating rotating plate 25 is provided with a duct fitting 212. The side of the main frame 1 is provided with two sets of pipe clamping fittings. The pipe clamping fittings include a clamping block 28 and a pressing block 28a. The pressing block 28a presses the duct fitting 212 onto the clamping block 28 with screws. The clamping block 28 is mounted on the slider 27. The extended end of the push rod 21 is provided with a push-pull sliding mechanism that cooperates with the two sliders 27. The lower side of the reciprocating rotating plate 25 is provided with an elastic pull-down mechanism that cooperates with the clamping block 28 on the lower side.

[0028] As an optional implementation, the push-pull sliding mechanism includes a concave buckle 22 and a linkage plate 29. The concave buckle 22 is snapped onto the opposite side of the linkage plate 29. The linkage plate 29 is installed on the side of two snap-fit ​​blocks 28. The linkage plate 29 has a movable hole 29a, and a push shaft 22a is movably fitted inside the movable hole 29a. The push shaft 22a is fixed on one side of the concave buckle 22, and the extended end of the push rod 21 is installed on the other side of the concave buckle 22. This allows the push rod 21 to push the push shaft 22a to slide in the movable hole 29a on the linkage plate 29, thereby driving the duct component 212 on the linkage plate 29 and the two sliders 27 to rotate around the pivot 24, so that the reciprocating rotation of the duct component 212 disengages from the rollers on the hot air sealing machine and returns to its original position.

[0029] See attached document Figure 3 and attached Figure 4 The elastic pull-down mechanism includes a tension spring 210 and a clamping screw 211. A washer is fitted on the clamping screw 211 and presses against the upper side of the tension spring 210. The clamping screw 211 passes through the upper side of the tension spring 210 and is threaded into a threaded hole. The threaded hole is opened on the side of the lower retaining block 28. The thread pitch on the threaded rod is set at 0.5mm.

[0030] Furthermore, the lower side of the tension spring 210 is fitted into the round hole, and the round hole is opened on the vertical ear plate 25a. The vertical ear plate 25a is fixed on the lower side of the reciprocating rotating plate 25. In this way, the lower side of the tension spring 210 can be positioned and pulled, thereby cooperating with the clamping screw 211 threaded on the lower side of the latch block 28 to achieve elastic downward pull of the slider 27 after it moves up.

[0031] See attached document Figure 1A blocking mounting plate 31 is installed on the side of the main frame 1. Two fixed ear plates 32 are fixed on the blocking mounting plate 31. The blocking threaded rod 3 is threadedly engaged with the two fixed ear plates 32. This allows for lateral displacement adjustment of the blocking threaded rod 3, thereby positioning the reciprocating rotating plate 25 when it returns to its original position, so that it accurately corresponds to the rolling roller on the hot air sealing machine.

[0032] Furthermore, the center of the blocking threaded rod 3 is aligned with the thickness center of the reciprocating rotating plate 25, thus ensuring that the reciprocating rotating plate 25 makes full contact with the blocking threaded rod 3 after rotation, achieving precise blocking positioning.

[0033] Furthermore, baffles are installed on both sides of the guide rail 26 to limit the sliding block 27 from dislodging, thereby limiting the sliding block 27 and ensuring the stable reciprocating operation of the swing lifting mechanism 2.

[0034] Furthermore, when the slider 27 moves down to the lower side of the guide rail 26 and contacts the baffle, the downward elastic force of its tension spring 210 is set to 1.3 times its own relaxed state. This allows the tension spring 210 to pull the slider 27 down and stop immediately when it contacts the baffle, ensuring the positioning accuracy of the nozzle on the duct 212 when it returns to its original position.

[0035] Using the above structure, the following steps are included:

[0036] 1. Compound disengagement movement (swing + rise)

[0037] When the position of the tarpaulin needs to be adjusted, the push rod 21 pushes the concave buckle 22, which drives the linkage plate 29 through the push shaft 22a to move the slider 27 upward along the guide rail 26. At the same time, the tension spring 210 of the elastic pull-down mechanism is triggered to store force. The duct component 212 swings 30°-45° with the reciprocating rotating plate 25 around the rotating shaft 24. The dual motion makes the end of the duct component 212 form a "rising-swinging" composite trajectory, which increases the clearance space by 50% compared with the traditional pure swinging structure.

[0038] 2. Precise localization regression

[0039] When push rod 21 retracts, tension spring 210 applies a precise downward pulling force through vertical ear plate 25a, and slider 27 brakes instantly when it slides down along guide rail 26 to the baffle contact position, and reciprocating rotating plate 25 is blocked on the return path by threaded rod 3 mechanically limiting it.

[0040] The center line of the threaded rod is aligned with the center of the thickness of the rotating plate (error ≤ 0.1mm).

[0041] Positioning compensation at the ±0.5mm level can be achieved through the dual fixed ear plates 32 micro-adjustment.

[0042] This structure upgrades the traditional two-dimensional swing to a three-dimensional composite motion, expanding the operating window to 160% of the original size, while improving the reset positioning accuracy to ±0.15mm (the industry standard is ±0.5mm). It is particularly suitable for continuous sealing operations of high-grammage waterproof fabric (≥800D).

[0043] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. Furthermore, this application is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail here. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field.

Claims

1. A heating and positioning structure for a hot air sealing machine, characterized in that: It includes a main frame (1) and a swinging lifting mechanism (2) set on the main frame (1). The side of the main frame (1) is provided with a blocking threaded rod (3) corresponding to the swinging lifting mechanism (2) after swinging. The swinging lifting mechanism (2) is provided with a protective cover (4) and an outflow pipe (5). The lower side of the outflow pipe (5) is set inside the protective cover (4) and installed on the other side of the main frame (1). The swing lifting mechanism (2) includes a push rod (21), a rotating mounting plate (23), a reciprocating rotating plate (25), and a slider (27). The rotating mounting plate (23) is detachably mounted on the side of the main frame (1). The reciprocating rotating plate (25) is located on the side corresponding to the rotating mounting plate (23) and is fixedly connected to one side of the rotating shaft (24). The rotating shaft (24) is rotatably engaged with the rotating mounting plate (23) through a bearing. The slider (27) is set as two pieces, and both are slidably mounted on the guide rail (26). The guide rail (26) is mounted on the reciprocating rotating plate (25). The side of the reciprocating rotating plate (25) is provided with a duct fitting (212). The side of the main frame (1) is provided with two sets of clamping fittings. The clamping fittings include a clamping block (28) and a pressing block (28a). The pressing block (28a) presses the duct fitting (212) onto the clamping block (28) with screws. The clamping block (28) is mounted on the slider (27). The extended end of the push rod (21) is provided with a push-pull sliding mechanism that cooperates with the two sliders (27). The lower side of the reciprocating rotating plate (25) is provided with an elastic pull-down mechanism that cooperates with the clamping block (28) on the lower side.

2. The heating and positioning structure of a hot air sealing machine according to claim 1, characterized in that: The push-pull sliding mechanism includes a concave buckle (22) and a linkage plate (29). The concave buckle (22) is locked on the opposite side of the linkage plate (29). The linkage plate (29) is installed on the side of two latch blocks (28). The linkage plate (29) has a movable hole (29a) and a push shaft (22a) is movably fitted in the movable hole (29a). The push shaft (22a) is fixed on one side of the concave buckle (22), and the extended end of the push rod (21) is installed on the other side of the concave buckle (22).

3. The heating and positioning structure of a hot air sealing machine according to claim 2, characterized in that: The elastic pull-down mechanism includes a tension spring (210) and a clamping screw (211). The clamping screw (211) is fitted with a washer that presses against the upper side of the tension spring (210). The clamping screw (211) passes through the upper side of the tension spring (210) and is threaded into a threaded hole. The threaded hole is located on the side of the lower bayonet block (28).

4. The heating and positioning structure of a hot air sealing machine according to claim 3, characterized in that: The lower side of the tension spring (210) is fitted into a circular hole, and the circular hole is opened on a vertical ear plate (25a), which is fixed on the lower side of the reciprocating rotating plate (25).

5. The heating and positioning structure of a hot air sealing machine according to claim 4, characterized in that: The main frame (1) is equipped with a blocking mounting plate (31) on its side. Two fixed ear plates (32) are fixed on the blocking mounting plate (31). The blocking threaded rod (3) is threadedly engaged with the two fixed ear plates (32).

6. The heating and positioning structure of a hot air sealing machine according to claim 5, characterized in that: The center of the blocking threaded rod (3) is on the same straight line as the thickness center of the reciprocating rotating plate (25).

7. The heating and positioning structure of a hot air sealing machine according to claim 6, characterized in that: The guide rail (26) is equipped with baffles on both sides to prevent the slider (27) from dislodging.

8. The heating and positioning structure of a hot air sealing machine according to claim 7, characterized in that: When the slider (27) moves down to the lower side of the guide rail (26) and contacts the baffle, the pull-down elastic force of its tension spring (210) is set to 1.3 times its relaxed state.

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