Hot air circulation equipment of thermal shrinkage machine

Abstract

The utility model belongs to the field of hot air circulation equipment, particularly relates to hot air circulation equipment of a thermal shrinkage machine, and aims to solve the problems that the existing hot air blowing through a membrane material cannot be further guided, the hot air is lost around, the hot air passes through an air bellow, the opening of the air bellow is larger, the hot air cannot be uniformly blown to the membrane material, and the membrane material is not uniformly heated. According to the technical scheme, the device comprises a conveying frame, a top cover is fixedly installed at the top of the conveying frame, a bottom bin is fixedly installed at the bottom of the conveying frame, a heating pipe is fixedly installed in the bottom bin, a plurality of swing plates are arranged in the bottom bin, and the heating pipe is located below the swing plates. Due to the design of hot air circulation and uniform heating, the thermal shrinkage process of the membrane material is quicker and more stable, so that the overall production efficiency is improved, meanwhile, the automation degree of the equipment is higher, manual intervention is reduced, and the continuity and stability of a production line are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot air circulation equipment, in particular to a hot air circulation equipment for a heat shrinker. Background Art

[0002] With the rapid development of the packaging industry, the heat shrinker, as an efficient and convenient packaging equipment, plays a crucial role. It uses hot air to heat the heat shrinkable film, so that the film material shrinks rapidly after being heated and tightly wraps around the surface of the product, thereby achieving the purposes of protecting the product, improving the aesthetics and enhancing the logistics efficiency.

[0003] There are still some deficiencies in the existing hot air circulation equipment of the heat shrinker during the actual use process:

[0004] The hot air blown towards the film material forms a circulating effect through pipeline connection in the heat shrinker. However, during the actual use process, the hot air blown through the film material cannot be further guided, and the hot air will be dissipated around. At the same time, the blown hot air passes through the air box, and the opening of the air box is relatively large, so it cannot be evenly blown towards the film material, resulting in uneven heating of the film material. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies in the existing technology that the hot air blown through the film material cannot be further guided, resulting in the situation that the hot air is dissipated around, and the hot air passes through the air box with a relatively large opening, so it cannot be evenly blown towards the film material, resulting in uneven heating of the film material, and to propose a hot air circulation equipment for a heat shrinker.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A hot air circulation equipment for a heat shrinker includes a conveying frame, a top cover is fixedly installed on the top of the conveying frame, a bottom bin is fixedly installed at the bottom of the conveying frame, a heating pipe is fixedly installed in the bottom bin, a plurality of swing plates are arranged in the bottom bin, and the heating pipe is located below the plurality of swing plates. Both ends of the plurality of swing plates are provided with rotating shafts, and the plurality of swing plates are respectively rotationally connected to the bottom bin through the rotating shafts;

[0008] It further includes a reciprocating component, which is located in the bottom bin and is used to drive the swing plates to swing.

[0009] In a possible design, the reciprocating assembly includes multiple gears, and the gears are fixedly sleeved on the outer wall of the rotating shaft at one end of the swing plate, a first rack is slidably connected in the bottom bin, and the first rack is meshed with multiple gears, an annular frame is slidably connected in the bottom bin, a second rack is fixedly connected to the top inner wall of the top cover, a third rack is fixedly connected to the bottom inner wall of the annular frame, a residual gear is rotatably connected in the bottom bin, and the residual gear is meshed with the second rack and the third rack in sequence, a second drive motor is fixedly connected in the bottom bin, and one end of the output shaft of the second drive motor is fixedly connected to the residual gear.

[0010] In a possible design, a first drive motor is fixedly mounted on the bottom of the bottom bin, and a first fan blade is fixedly sleeved on the outer wall of the output shaft of the first drive motor.

[0011] In a possible design, a top cover is fixedly installed in the top cover, a third drive motor is fixedly installed in the top cover, and a second fan blade is fixedly sleeved on the outer wall of the output shaft of the third drive motor.

[0012] In a possible design, a circulation pipe is connected between the top cover and the bottom bin, and the air inlet end of the circulation pipe is fixedly passed through the top cover and the top cover, and connecting ports are provided on both sides of the bottom of the bottom bin, and the two air outlets of the circulation pipe are respectively connected to the connecting ports on both sides of the bottom bin, and the two connecting ports are lower than the height of the first fan blade.

[0013] In a possible design, the conveyor frame is composed of a support frame, a fourth drive motor, a transmission roller and a conveyor belt, and the fourth drive motor is fixedly installed on one side of the support frame, and two transmission rollers rotate in the support frame, one end of one of the transmission rollers is fixedly connected to one end of the output shaft of the fourth drive motor, and the two transmission rollers are connected by a conveyor belt.

[0014] In the present application, the items to be tightened are placed on the conveying rack and conveyed to the bottom of the top cover. The heating tube is energized and the first driving motor is started. The output shaft of the first driving motor drives the first fan blade to rotate. The first fan blade blows the heat generated by the heating tube upward and passes through multiple swinging plates. The second driving motor is started. The output shaft of the second driving motor drives the residual gear to rotate, and the residual gear is engaged with the second rack and the third rack in sequence, driving the first rack to reciprocate. As the first rack reciprocates, it drives multiple gears to rotate reciprocally, so that the multiple swinging plates swing, and the hot air is evenly guided upward and passes through the conveying rack to heat and shrink the film material. The third driving motor is started, and the second fan blade is driven to rotate through the output shaft of the third driving motor to draw the heat under the top cover into the circulation tube and introduce it into the bottom bin, thereby forming a reciprocating use of heat.

[0015] Beneficial effects:

[0016] In the present utility model, for the hot air circulation device of a heat shrinker, through the designed reciprocating component, it can drive multiple swing members, i.e., swing plates, to perform reciprocating swings, thereby realizing uniform upward diversion of hot air, ensuring comprehensive and uniform heating and shrinking of the film material, and improving the heat shrinkage efficiency and quality.

[0017] In the present utility model, for the hot air circulation device of a heat shrinker, the device is internally provided with a hot air circulation system. Through the rotation of the third driving motor and the second fan blade, the heat below the top cover is re-extracted and circulated into the bottom bin, realizing the reuse of heat, significantly reducing energy consumption, and improving energy utilization efficiency.

[0018] In the present utility model, due to the design of hot air circulation and uniform heating, the heat shrinkage process of the film material is more rapid and stable, thereby improving the overall production efficiency. At the same time, the device has a high degree of automation, reducing manual intervention and further enhancing the continuity and stability of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of a hot air circulation device of a heat shrinker proposed by the present utility model;

[0020] Figure 2 is a sectional structural schematic diagram of the bottom bin of a hot air circulation device of a heat shrinker proposed by the present utility model;

[0021] Figure 3 is a three-dimensional structural schematic diagram of the first rack of a hot air circulation device of a heat shrinker proposed by the present utility model;

[0022] Figure 4 is a sectional structural schematic diagram of the top cover of a hot air circulation device of a heat shrinker proposed by the present utility model.

[0023] In the figure: 1, top cover; 2, circulation pipe; 3, conveying rack; 4, bottom bin; 5, swing plate; 6, heating pipe; 7, first fan blade; 8, first driving motor; 9, connection port; 10, first rack; 11, annular rack; 12, second driving motor; 13, residual gear; 14, second rack; 15, third rack; 16, gear; 17, third driving motor; 18, second fan blade; 19, top cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0025] Embodiment 1

[0026] Refer to Figure 1 andFigure 2 , a hot air circulation device, including a conveying rack 3, a top cover 1 is fixedly installed on the top of the conveying rack 3, a bottom bin 4 is fixedly installed on the bottom of the conveying rack 3, a heating pipe 6 is fixedly installed in the bottom bin 4, a plurality of swing plates 5 are arranged in the bottom bin 4, and the heating pipe 6 is located below the plurality of swing plates 5. Both ends of the plurality of swing plates 5 are provided with rotating shafts, and the plurality of swing plates 5 are respectively rotationally connected to the bottom bin 4 through the rotating shafts; it also includes a reciprocating component, which is located in the bottom bin 4 and is used to drive the swing plates 5 to swing. The top cover 1 is installed on the top of the conveying rack 3 to enclose the upper space and jointly form a cavity for hot air circulation with the bottom bin 4. The heating pipe 6 is fixedly installed inside the bottom bin 4, and the generated heat is guided by the swinging of the plurality of swing plates 5 in the bottom bin 4. The reciprocating component is used to drive the swing plates 5 to reciprocate, thereby enhancing the uniformity and circulation effect of the hot air.

[0027] Refer to Figure 3 , the reciprocating component includes a plurality of gears 16, and the gears 16 are fixedly sleeved on the outer wall of the rotating shaft at one end of the swing plate 5. A first rack 10 is slidably connected in the bottom bin 4, and the first rack 10 meshes with the plurality of gears 16. An annular frame 11 is slidably connected in the bottom bin 4, a second rack 14 is fixedly connected to the inner wall of the top of the top cover 1, a third rack 15 is fixedly connected to the inner wall of the bottom of the annular frame 11, a partial gear 13 is rotatably connected in the bottom bin 4, and the partial gear 13 meshes with the second rack 14 and the third rack 15 in sequence. A second driving motor 12 is fixedly connected in the bottom bin 4, and one end of the output shaft of the second driving motor 12 is fixedly connected to the partial gear 13. Start the second driving motor 12, the output shaft of the second driving motor 12 drives the partial gear 13 to rotate, and through the partial gear 13 meshing with the second rack 14 and the third rack 15 in sequence, drives the first rack 10 to reciprocate. As the first rack 10 reciprocates, it drives the plurality of gears 16 to rotate reciprocally, thereby causing the plurality of swing plates 5 to swing and uniformly guiding the hot air upward.

[0028] Refer to Figure 2 , a first driving motor 8 is fixedly installed on the bottom of the bottom bin 4, and a first fan blade 7 is fixedly sleeved on the outer wall of the output shaft of the first driving motor 8. The output shaft of the first driving motor 8 drives the first fan blade 7 to rotate, and the first fan blade 7 blows the heat generated by the heating pipe 6 upward.

[0029] Refer to Figure 4 , a top cover 19 is fixedly installed in the top cover 1, a third driving motor 17 is fixedly installed in the top cover 19, and a second fan blade 18 is fixedly sleeved on the outer wall of the output shaft of the third driving motor 17. The output shaft of the third driving motor 17 drives the second fan blade 18 to rotate, and sucks the heat below the top cover 1 into the circulation pipe 2.

[0030] Refer to Figure 2 and Figure 4A circulation pipe 2 is connected between the top cover 1 and the bottom bin 4, and the air inlet end of the circulation pipe 2 is fixedly passed through the top cover 1 and the top cover 19. Both sides of the bottom of the bottom bin 4 are provided with connection ports 9. The two air outlets of the circulation pipe 2 are respectively connected to the connection ports 9 on both sides of the bottom bin 4, and the two connection ports 9 are lower than the height of the first fan blade 7. The circulation pipe 2 is between the top cover 1 and the bottom bin 4 and is used for airflow guidance.

[0031] The present application can be used in the field of heat shrink machines, and can also be used in other fields applicable to the present application.

[0032] Example 2

[0033] refer to Figure 1 , improved on the basis of the first embodiment: a heat shrink machine hot air circulation device, which is applied to the field of heat shrink machines, the conveying frame 3 is composed of a support frame, a fourth drive motor, a transmission roller and a conveyor belt, and the fourth drive motor is fixedly installed on one side of the support frame, and the two transmission rollers are rotated in the support frame, one end of one of the transmission rollers is fixedly connected to one end of the output shaft of the fourth drive motor, and the two transmission rollers are connected by a conveyor belt. The output shaft of the fourth drive motor drives one of the transmission rollers to rotate, and the two transmission rollers are connected by a conveyor belt, thereby realizing the transportation of the items.

[0034] However, as is well known to those skilled in the art, the working principles and wiring methods of the heating tube 6, the first drive motor 8, the second drive motor 12 and the third drive motor 17 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hot air circulation device for a heat shrinker, characterized in that include: A conveying frame (3), wherein a top cover (1) is fixedly mounted on the top of the conveying frame (3), a bottom bin (4) is fixedly mounted on the bottom of the conveying frame (3), a heating pipe (6) is fixedly mounted in the bottom bin (4), a plurality of swing plates (5) are arranged in the bottom bin (4), and the heating pipe (6) is located below the plurality of swing plates (5), both ends of the plurality of swing plates (5) are provided with rotating shafts, and the plurality of swing plates (5) are rotatably connected to the bottom bin (4) via the rotating shafts respectively; It also includes a reciprocating assembly, which is located in the bottom bin (4) and is used to drive the swing plate (5) to swing.

2. The hot air circulation device of a heat shrinker according to claim 1, characterized in that, The reciprocating assembly comprises a plurality of gears (16), and the gears (16) are fixedly sleeved on the outer wall of a rotating shaft at one end of the swing plate (5); a first rack (10) is slidably connected in the bottom bin (4), and the first rack (10) is meshed with the plurality of gears (16); an annular frame (11) is slidably connected in the bottom bin (4); a second rack (14) is fixedly connected to the top inner wall of the top cover (1); a third rack (15) is fixedly connected to the bottom inner wall of the annular frame (11); a residual gear (13) is rotatably connected in the bottom bin (4), and the residual gear (13) is meshed with the second rack (14) and the third rack (15) in sequence; a second drive motor (12) is fixedly connected in the bottom bin (4), and one end of the output shaft of the second drive motor (12) is fixedly connected to the residual gear (13).

3. The hot air circulation device of a heat shrinker according to claim 1, characterized in that A first drive motor (8) is fixedly mounted at the bottom of the bottom bin (4), and a first fan blade (7) is fixedly sleeved on the outer wall of the output shaft of the first drive motor (8).

4. A hot air circulation device for a heat shrinker according to claim 1, characterized in that, A top cover (19) is fixedly mounted in the top cover (1), a third drive motor (17) is fixedly mounted in the top cover (19), and a second fan blade (18) is fixedly sleeved on the outer wall of the output shaft of the third drive motor (17).

5. A hot air circulation device for a heat shrinker according to claim 1, characterized in that, A circulation pipe (2) is connected between the top cover (1) and the bottom bin (4), and an air inlet end of the circulation pipe (2) is fixedly passed through the top cover (1) and the top cover (19). Connecting ports (9) are provided on both sides of the bottom of the bottom bin (4). Two air outlets of the circulation pipe (2) are respectively connected to the connecting ports (9) on both sides of the bottom bin (4), and the two connecting ports (9) are lower than the height of the first fan blade (7).

6. The hot air circulation device of a heat shrinker according to claim 1, characterized in that, The conveyor frame (3) is composed of a support frame, a fourth drive motor, a transmission roller and a conveyor belt, wherein the fourth drive motor is fixedly mounted on one side of the support frame, two transmission rollers rotate in the support frame, one end of one of the transmission rollers is fixedly connected to one end of the output shaft of the fourth drive motor, and the two transmission rollers are connected by a transmission belt.

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