Heat sealing and sizing device for heat shrinkable sleeves

Abstract

The application relates to a heat-sealing and shaping device for heat-shrinkable sleeves and belongs to the technical field of cable processing, which comprises a base, a first frame and a second frame which are connected to the base and are arranged at intervals, at least two first conveying belt mechanisms which are arranged in parallel on the first frame in the vertical direction, at least two second conveying belt mechanisms which are arranged in parallel on the second frame in the vertical direction, the conveying surfaces of the first conveying belt mechanisms and the conveying surfaces of the second conveying belt mechanisms being in parallel opposition, a driving source arranged on the second frame, the driving source being in transmission connection with each second conveying belt mechanism and being used for driving all the second conveying belt mechanisms to synchronously operate, and a heating unit and a cooling unit which are arranged in sequence on the first frame and are located between the two first conveying belt mechanisms. The application realizes continuous and automatic processing by integrating the conveying belt with the heating and cooling units, and the efficiency is high; the cable is rotated by the linkage overturning device, the heating is uniform, and the quality is more reliable.

Description

Technical Field

[0001] This application relates to the technical field of cable processing equipment, and in particular to a heat-sealing and shaping device for heat shrink tubing. Background Technology

[0002] Heat shrink tubing is a special type of tubing that shrinks when heated, and is widely used for insulation protection, sealing, and stress relief of cable joints and terminals. During processing, the tubing is placed over the cable at a predetermined position, heated to shrink it evenly and tightly wrap the cable, and then cooled to set, thus forming a stable protective layer.

[0003] Currently, a common method for processing cables with heat-shrink tubing is to rely on operators manually heating the tubing using tools such as handheld heat guns. This method is not only inefficient and highly dependent on the operator's skill level, but also difficult to precisely control the heating temperature, time, and uniformity, which can easily lead to uneven tubing shrinkage, overheating damage, or incomplete shrinkage, affecting product quality.

[0004] Regarding the aforementioned technologies, the inventors believe that they have the following drawbacks: current semi-automatic equipment that relies on manual operation or simple transmission has difficulty in continuous processing, and the separation of heating and cooling processes leads to low overall production efficiency, making it impossible to form a stable and controllable automated production cycle, and making it difficult to meet the needs of batch and high-quality processing. Summary of the Invention

[0005] In order to improve the problems of the existing cable heat shrinking process being dependent on manual labor, inefficient and difficult to produce continuously and stably, this application provides a heat sealing and shaping device for heat shrink tubing.

[0006] The heat-sealing and shaping device for heat-shrink tubing provided in this application adopts the following technical solution: A heat-sealing and shaping device for heat shrink tubing includes a base, and a first frame and a second frame connected to the base and spaced apart. At least two first conveyor belt mechanisms are arranged side by side along the vertical direction on the first frame; The second frame has at least two second conveyor belt mechanisms arranged side by side in the vertical direction, each directly opposite the first conveyor belt mechanism and in the same number. The conveying surfaces of the first and second conveyor belt mechanisms are parallel and opposite to each other, forming a clamping channel between them for clamping and conveying heat-shrinkable tubing cables. The second frame is provided with a drive source, which is connected to each of the second conveyor belt mechanisms to drive all the second conveyor belt mechanisms to operate synchronously. Along the conveying direction of the clamping channel, a heating unit and a cooling unit are sequentially arranged on the first frame and between the two first conveyor belt mechanisms.

[0007] By adopting the above technical solution, the device forms a stable clamping channel through parallel and opposing first and second conveyor belt mechanisms. A single drive source drives all second conveyor belt mechanisms to operate synchronously, ensuring smooth cable transport. Simultaneously, the heating and cooling units are integrated and located beside the clamping channel, enabling the cable to automatically and continuously undergo heating, shrinking, and cooling during transport. This transforms manual intermittent operation into automated continuous production, significantly improving processing efficiency and process controllability.

[0008] Preferably, the first conveyor belt mechanism includes a plurality of rotating units and a first conveyor belt. The rotating unit includes a wheel frame fixedly connected to the side wall of the first frame and a first wheel rotatably connected to the wheel frame. The first conveyor belt is sleeved on the outer wall of the plurality of first wheels.

[0009] By adopting the above technical solution, the structure is simple and reliable. The first transmission belt is supported by multiple first rollers, which can provide a stable and continuous transmission surface and effectively clamp and transport cables.

[0010] Preferably, the second frame includes a mounting bracket fixedly connected to the base on the side near the first frame, and a conveyor belt connection box fixedly connected to the mounting bracket on the side near the first frame.

[0011] By adopting the above technical solution, the mounting frame and the conveyor belt connection box constitute a stable second frame body, providing a reliable structural foundation for the centralized and compact installation of the second conveyor belt mechanism and the drive source.

[0012] Preferably, a first mounting groove is provided in the middle of the side of the conveyor belt connecting box near the first frame, the drive source is installed on the groove wall of the first mounting groove, and second mounting grooves are provided on both sides of the side of the conveyor belt connecting box near the first frame, and two second conveyor belt mechanisms are respectively connected to the inner wall of the corresponding second mounting groove.

[0013] By adopting the above technical solution, this layout places the drive source in the middle and symmetrically arranges the second conveyor belt mechanism on both sides. The structure is clear and compact, which facilitates the synchronous transmission of power and the independent installation and maintenance of each component.

[0014] Preferably, the second conveyor belt mechanism includes a plurality of rotating shafts rotatably connected to the side wall of the second mounting groove, a second rotating wheel fixedly connected to the outer wall of the rotating shaft, and a second conveyor belt sleeved on the outer wall of the plurality of second rotating wheels, wherein at least one of the rotating shafts passes through the groove wall of the second mounting groove and is fixedly connected to the output shaft of the drive source.

[0015] By adopting the above technical solution, the drive source directly drives the second wheel and the second transmission belt through the drive shaft. The transmission chain is short and the efficiency is high, ensuring the reliable transmission of power.

[0016] Preferably, a cable support is fixedly connected to the side of the mounting bracket away from the base for placing the heat-shrinkable cable to be processed.

[0017] By adopting the above technical solution, the cable shelf provides a temporary place for the cables to be processed, making it convenient for operators to load the cables and improving the convenience of human-machine interaction.

[0018] Preferably, controllers are provided on both sides of the first frame, and the controllers are fixedly connected to the base.

[0019] By adopting the above technical solution, the controller realizes centralized electrical control of the drive source, heating unit and cooling unit, and can accurately set and adjust core process parameters such as conveying speed, heating temperature and cooling intensity, thereby improving the level of automation and intelligence in processing and ensuring the consistency of product quality.

[0020] Preferably, an auxiliary flipping device is provided in the first mounting slot. The auxiliary flipping device includes a transmission assembly and several flipping units. The transmission assembly includes several transmission wheels rotatably connected to the inner wall of the first mounting slot via a first connecting shaft, several drive wheels rotatably connected to the inner wall of the first mounting slot via a second connecting shaft, at least one auxiliary wheel rotatably connected to the inner wall of the first mounting slot via a third connecting shaft, and a third transmission belt sleeved on the outer wall of the transmission wheels, drive wheels and auxiliary wheels.

[0021] By adopting the above technical solution, the auxiliary flipping device can actively intervene in the attitude of the cable during the cable transportation process. Its transmission component can be driven by the power of an existing drive source, providing a power basis for the rotation of the cable, thereby solving the problem of uneven circumferential heating that may be caused by the cable passing through the heating zone in a fixed attitude.

[0022] Preferably, one of the second connecting shafts has its two ends passing through the sidewall of the first mounting groove and being fixedly connected to the corresponding rotating shaft.

[0023] By adopting the above technical solution, this connection method enables the drive wheel of the auxiliary flipping device to obtain rotational power directly from the power shaft of the second conveyor belt mechanism, without the need to add an independent motor, which simplifies the overall structure, realizes the reuse of power source, and ensures strict synchronization between the flipping action and the conveying action.

[0024] Preferably, at least two flipping units are connected to each of the first connecting shafts. The two flipping units are symmetrically arranged with the transmission wheel as the center. Each flipping unit includes a flipping wheel fixedly connected to the outer wall of the first connecting shaft, and several actuating protrusions fixedly connected to the outer wall of the flipping wheel. Several anti-slip blocks for increasing friction are fixedly connected to the actuating protrusions on the side surface pointing in the direction of rotation of the flipping wheel.

[0025] By adopting the above technical solution, the symmetrically arranged flipping units make the force more balanced. When the flipping wheel rotates, the actuating protrusions on it periodically contact and actuate the cable from below. The anti-slip block increases the contact friction, ensuring that the cable can be effectively driven to rotate slowly and continuously around its own axis. This allows the heat shrink tubing to be heated evenly on its entire circumference when passing through the heating unit, fundamentally improving the heating quality and product reliability.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The clamping channel is formed by the first and second conveyor belt mechanisms arranged in parallel and opposite directions, and heating and cooling units are integrated in sequence, realizing continuous, stable and automated processing of cable heat shrinking, which significantly improves production efficiency and process consistency. 2. By setting up an auxiliary flipping device linked by the same drive source, and using the actuating protrusion on it to periodically actuate the cable, the cable rotates simultaneously during transportation, ensuring the uniformity of circumferential heating of the heat shrink tubing, and further improving the shrinkage quality and reliability of the product. Attached Figure Description

[0027] Figure 1 This is a perspective view illustrating the heat-sealing and shaping device in Embodiment 1 of this application.

[0028] Figure 2 This is a structural diagram of the first frame and its internal first conveyor belt mechanism in Embodiment 1 of this application.

[0029] Figure 3 This is a structural diagram illustrating the second frame and its internal second conveyor belt mechanism in Embodiment 1 of this application.

[0030] Figure 4 This is a perspective view of Embodiment 2 of this application, illustrating the installation of an auxiliary flipping device inside the conveyor belt connecting box.

[0031] Figure 5 It is about Figure 4 Sectional view at TT.

[0032] Figure 6 It is about Figure 5 A magnified view at point A.

[0033] Explanation of reference numerals in the attached drawings: 1. Base; 2. First frame; 3. Second frame; 31. Mounting bracket; 311. Vertical part; 312. Horizontal part; 32. Conveyor belt connection box; 321. First mounting slot; 322. Second mounting slot; 33. Cable support platform; 4. First conveyor belt mechanism; 41. Rotary unit; 411. Wheel frame; 412. First rotating wheel; 42. First conveyor belt; 5. Second conveyor belt mechanism; 51. Shaft; 52. Second rotating wheel; 53. 6. Second conveyor belt; 7. Drive source; 8. Heating unit; 9. Cooling unit; 10. Controller; 11. Auxiliary flipping device; 101. Transmission assembly; 1011. First connecting shaft; 1012. Transmission wheel; 1013. Second connecting shaft; 1014. Drive wheel; 1015. Third connecting shaft; 1016. Auxiliary wheel; 1017. Third conveyor belt; 102. Flipping unit; 1021. Flipping wheel; 1022. Actuating protrusion; 1023. Anti-slip block. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail. Example

[0035] This application discloses a heat-sealing and shaping device for heat shrink tubing, referring to... Figure 1 It includes a base 1, a first frame 2, a second frame 3, several first conveyor belt mechanisms 4 and second conveyor belt mechanisms 5.

[0036] The first frame 2 and the second frame 3 are both fixedly connected to the top surface of the base 1. They are arranged in a front-to-back manner and spaced apart (the first frame 2 is fixedly connected to the rear part of the top surface of the base 1, and the second frame 3 is fixedly connected to the front part of the top surface of the base 1). A working gap is formed between the first frame 2 and the second frame 3.

[0037] Specifically, refer to Figure 2 The first frame 2 has an open box structure at the front, with the opening pointing towards the second frame 3. In this embodiment, there are two first conveyor belt mechanisms 4, arranged symmetrically side by side, with each first conveyor belt mechanism 4 connected to the corresponding side wall of the first frame 2. Each first conveyor belt mechanism 4 includes several rotating units 41 and a first transmission belt 42. The rotating unit 41 further includes a wheel frame 411 and a first rotating wheel 412. The wheel frame 411 is fixedly connected to the side wall of the first frame 2. The first rotating wheel 412 is rotatably connected to the wheel frame 411 via bearings. The first transmission belt 42 is fitted onto the outer wall of all the first rotating wheels 412, thereby forming a cyclically rotating conveying surface. It should be noted that in this embodiment, the first rotating wheel 412 is preferably a synchronous pulley, and the corresponding first transmission belt 42 is preferably a synchronous belt.

[0038] A heating unit 7 is fixedly connected to the upper part of the rear inner wall of the first frame 2. In this embodiment, the heating unit 7 is preferably a ceramic heater. A cooling unit 8 is fixedly connected to the lower part of the rear inner wall of the first frame 2. In this embodiment, the cooling unit 8 is preferably a fan. It should be noted that both the heating unit 7 and the cooling unit 8 are located between the first conveyor belt mechanisms 4 on both sides. In this way, during the processing, the heating unit 7 is first used to heat the heat shrink tubing, causing it to automatically shrink upon heating. Then, the cooling unit 8 is used to cool the heat shrink tubing with air, making it convenient for subsequent operators to handle.

[0039] Reference Figure 3 The second frame 3 includes a mounting bracket 31, a conveyor belt connection box 32, and a cable support platform 33. The mounting bracket 31 is L-shaped and includes a vertical part 311 and a horizontal part 312. The vertical part 311 is fixedly connected to the front part of the top surface of the base 1, the horizontal part 312 is fixedly connected to the upper part of the vertical part 311 near the first frame 2, the conveyor belt connection box 32 is fixedly connected to the side of the horizontal part 312 away from the vertical part 311, and the cable support platform 33 is fixedly connected to the side of the horizontal part 312 away from the base 1 (i.e., the top surface of the horizontal part 312). The top surface of the cable support platform 33 is used to temporarily place the heat-shrinkable cable to be processed before processing, which facilitates loading.

[0040] On both sides of the conveyor belt connecting box 32 near the first frame 2, second mounting slots 322 are provided along its length (vertical direction). In this embodiment, there are two second conveyor belt mechanisms 5, each installed in a corresponding second mounting slot 322. Each second conveyor belt mechanism 5 includes a rotating shaft 51, a second rotating wheel 52, and a second conveyor belt 53. Several rotating shafts 51 and second rotating wheels 52 are provided, with the same number of shafts and wheels. The shafts 51 are evenly spaced vertically and rotatably connected to two opposite inner sidewalls of the second mounting slot 322. Several second rotating wheels 52 are fixedly connected to the middle of the outer wall of the corresponding shaft 51. The second conveyor belt 53 is sleeved on the outer wall of the several second rotating wheels 52. In this embodiment, the second rotating wheel 52 is preferably a synchronous pulley, and the corresponding second conveyor belt 53 is preferably a synchronous belt.

[0041] Additionally, it should be noted that the conveying surfaces of the second conveyor belts 53 of the two second conveyor belt mechanisms 5 are parallel and opposite to each other, and are respectively directly opposite the conveying surfaces of the two first conveyor belt mechanisms 4 on the opposite first frame 2. The conveying surfaces of the first conveyor belt mechanisms 4 and the second conveyor belt mechanisms 5 are parallel and opposite to each other, together forming a clamping channel for clamping and conveying heat-shrinkable tubing cables.

[0042] A first mounting groove 321 is formed in the middle of the side of the conveyor belt connecting box 32 near the first frame 2, located between the two second mounting grooves 322. A drive source 6 (preferably a dual-output servo motor) is fixedly connected to the lower part of the inner wall of the first mounting groove 321. In this embodiment, the bottommost shaft 51 of the two second conveyor belt mechanisms 5, with one end of this shaft 51 near the drive source 6, passes through the side wall of the second mounting groove 322, extends into the first mounting groove 321, and is fixedly connected to one output shaft of the drive source 6. This enables one drive source 6 to drive all the second conveyor belt mechanisms 5 to operate synchronously. The cable is clamped between the first conveyor belt 42 and the second conveyor belt 53 and is transported by friction.

[0043] On each side of the first frame 2, there is a controller 9, which is fixedly connected to the base 1. The controller 9 is electrically connected to the drive source 6, the heating unit 7, and the cooling unit 8, and is used to centrally control the start-up and shutdown, conveying speed, heating temperature, and cooling intensity of the entire device.

[0044] The implementation principle of this embodiment is as follows: First, the operator places the cable with the heat-shrink tubing already fitted on the cable support platform 33 and manually guides its end into the clamping channel entrance formed by the first conveyor belt 42 and the second conveyor belt 53. After starting the device, the controller 9 controls the drive source 6 (dual-output servo motor) to work, and its two output shafts synchronously drive the rotating shafts 51 of the second conveyor belt mechanisms 5 on both sides to rotate, thereby driving all the second conveyor belts 53 to rotate synchronously. The cable is stably clamped by the first conveyor belt 42 and the second conveyor belt 53 in the clamping channel and is conveyed downward by friction. When the cable moves to the inner cavity of the first frame 2 and is located in the area between the first conveyor belt mechanisms 4 on both sides, it first passes through the ceramic heater (heating unit 7) fixed on the upper part of the rear inner wall. The heat-shrink tubing is uniformly heated and begins to shrink, tightly wrapping the inner cable body. Subsequently, the shrunken cable part continues to move downward and enters the working area of ​​the fan (cooling unit 8) fixed on the lower part of the rear inner wall. The blown airflow quickly cools and solidifies the cable, thereby completing the shaping. Finally, the shaped cable is output from the end of the clamping channel, thus completing the heat sealing and shaping operation of a single cable. The device achieves dual-channel synchronous drive through a drive source 6, and realizes continuous automated processing of the heating and cooling process of the heat shrink tubing on the cable through the heating and cooling unit 8 integrated in the first frame 2. Example

[0045] Based on the basic structure provided in Embodiment 1, in order to solve the problem that the cable may not rotate due to gravity or friction when being transported in the clamping channel, resulting in uneven heating on one side of the heat shrink tubing, this application hereby proposes Embodiment 2.

[0046] The overall structure of this second embodiment is basically the same as that of the first embodiment. The improvement is that, referring to... Figure 4 An auxiliary flipping device 10 is integrated in the first mounting slot 321 to actively move the cable during the conveying process, thereby causing it to rotate and achieve uniform heating.

[0047] Specifically, refer to Figure 5 and Figure 6 The auxiliary flipping device 10 includes a transmission assembly 101 and several flipping units 102.

[0048] The transmission assembly 101 includes several first connecting shafts 1011, transmission wheels 1012, second connecting shafts 1013, drive wheels 1014, third connecting shafts 1015, auxiliary wheels 1016, and a third transmission belt 1017. Several first connecting shafts 1011 are rotatably connected to two opposite inner walls of the first mounting groove 321 via bearings, with each first connecting shaft 1011 located closer to the first frame 2. A transmission wheel 1012 is fixedly fitted onto the center of each first connecting shaft 1011. In this embodiment, there are two second connecting shafts 1013, also rotatably connected to the inner wall of the first mounting groove 321. A drive wheel 1014 is fixedly fitted onto each second connecting shaft 1013. Furthermore, the third connecting shaft 1015 is rotatably connected to the inner wall of the first mounting groove 321, and an auxiliary wheel 1016 is fixedly fitted onto the third connecting shaft 1015. The third transmission belt 1017 is sleeved on the outer wall of all the transmission wheels 1012, drive wheels 1014 and auxiliary wheels 1016, so that they can rotate synchronously. In this embodiment, the transmission wheels 1012, drive wheels 1014 and auxiliary wheels 1016 are all preferably synchronous pulleys, and correspondingly, the third transmission belt 1017 is preferably a synchronous belt.

[0049] To further explain, several first connecting shafts 1011 are evenly spaced vertically. Additionally, one first connecting shaft 1011 is located between two adjacent second rotating wheels 52, and several transmission wheels 1012 and several second rotating wheels 52 are arranged alternately. Simultaneously, all transmission wheels 1012 are directly opposite the first rotating wheel 412. Two drive wheels 1014 are located, one at the top of the transmission assembly 101 and the other at the bottom. The two ends of one of the second connecting shafts 1013 (preferably the topmost second connecting shaft 1013 in this embodiment) pass through the inner wall of the first mounting groove 321, extend into the second mounting groove 322, and are fixedly connected to the corresponding second connecting shaft 1013. Therefore, when the drive source 6 drives the rotating shaft 51 to rotate, it not only drives the second transmission belt 53 to move but also simultaneously drives the third connecting shaft 1015 to rotate, thereby driving the entire transmission assembly 101 to operate via the third transmission belt 1017.

[0050] The number of flipping units 102 is related to the number of first connecting shafts 1011. At least two flipping units 102 are connected to each first connecting shaft 1011, and these two flipping units 102 are symmetrically arranged about the transmission wheel 1012 on that shaft. Each flipping unit 102 includes a flipping wheel 1021 and actuating protrusions 1022. The flipping wheel 1021 is disc-shaped and is fixedly fitted onto the outer wall of the first connecting shaft 1011 by means of key connection or other means. Several actuating protrusions 1022 are provided and fixedly connected to the outer circumferential surface of the flipping wheel 1021. Each actuating protrusion 1022 is elongated, and several anti-friction sliders 1023 are fixedly embedded on one side (i.e., the side pointing in the rotation direction of the flipping wheel 1021). The anti-friction sliders 1023 are preferably made of rubber or silicone.

[0051] After assembly, all the rotating wheels 1021 and their actuating protrusions 1022 extend precisely into the area where the clamping channel is located. When the transmission assembly 101 drives the first connecting shaft 1011 to rotate, the rotating wheels 1021 rotate accordingly, and their actuating protrusions 1022 periodically push the passing cable upward, causing the cable to experience a slight lift and rotation, thereby changing its relative heating surface with the heating unit 7.

[0052] The implementation principle of this embodiment is as follows: After the device is started, the drive source 6 simultaneously drives the second conveyor belt mechanism 5 and the auxiliary flipping device 10. The cable is stably clamped and conveyed downward in the clamping channel by the first conveyor belt 42 and the second conveyor belt 53. During this process, the output of the drive source 6 is transmitted to the uppermost second connecting shaft 1013 through the rotating shaft 51, thereby driving the drive wheel 1014 fixed thereto to rotate. The rotational power of the drive wheel 1014 is synchronously transmitted to all the transmission wheels 1012 and auxiliary wheels 1016 through the third conveyor belt 1017, thereby driving all the first connecting shafts 1011 to rotate synchronously. The flipping wheel 1021 fixed on the first connecting shaft 1011 rotates accordingly, and the actuating protrusions 1022 evenly distributed on its outer circumference periodically and alternately contact and actuate the cable passing by from above. Since the contact surface of the actuating protrusions 1022 is provided with anti-slip blocks 1023, sufficient friction is provided, so that while the cable is continuously conveyed downward, a rotational torque is applied, thereby generating a slow and continuous rotation around its own axis. In this way, when the cable passes through the heating unit 7, the entire circumference of its external heat shrink tubing can be heated evenly, effectively avoiding uneven shrinkage or overheating damage caused by heating on one side. The cable, which has been evenly heated and shrunk, then enters the working area of ​​the cooling unit 8 to be rapidly cooled and shaped, and is finally output from the end of the device, realizing high-quality and high-efficiency automated processing.

[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat-sealing and shaping device for heat-shrink tubing, comprising a base (1), characterized in that, It also includes a first frame (2) and a second frame (3) connected to the base (1) and spaced apart; At least two first conveyor belt mechanisms (4) are arranged side by side along the vertical direction on the first frame (2); The second frame (3) is provided with at least two second conveyor belt mechanisms (5) arranged in parallel along the vertical direction, each one facing the first conveyor belt mechanism (4) and the same number of them. The conveying surface of the first conveyor belt mechanism (4) is parallel to the conveying surface of the second conveyor belt mechanism (5) to form a clamping channel therebetween for clamping and conveying heat shrink tubing cables. The second frame (3) is provided with a drive source (6), which is connected to each of the second conveyor belt mechanisms (5) for driving all the second conveyor belt mechanisms (5) to run synchronously. Along the conveying direction of the clamping channel, a heating unit (7) and a cooling unit (8) are sequentially arranged on the first frame (2) and between the two first conveyor belt mechanisms (4).

2. The heat-sealing and shaping device for heat-shrink tubing according to claim 1, characterized in that: The first conveyor belt mechanism (4) includes several rotating units (41) and a first conveyor belt (42). The rotating unit (41) includes a wheel frame (411) fixedly connected to the side wall of the first frame (2) and a first wheel (412) rotatably connected to the wheel frame (411). The first conveyor belt (42) is sleeved on the outer wall of several first wheels (412).

3. The heat-sealing and shaping device for heat-shrink tubing according to claim 1, characterized in that: The second frame (3) includes a mounting bracket (31) fixedly connected to the base (1) on the side near the first frame (2), and a conveyor belt connection box (32) fixedly connected to the mounting bracket (31) on the side near the first frame (2).

4. The heat-sealing and shaping device for heat-shrink tubing according to claim 3, characterized in that: The conveyor belt connection box (32) has a first mounting groove (321) in the middle of the side near the first frame (2). The drive source (6) is installed on the groove wall of the first mounting groove (321). The conveyor belt connection box (32) has second mounting grooves (322) on both sides of the side near the first frame (2). The two second conveyor belt mechanisms (5) are respectively connected to the inner wall of the corresponding second mounting groove (322).

5. A heat-sealing and shaping device for heat-shrink tubing according to claim 4, characterized in that: The second conveyor belt mechanism (5) includes a plurality of rotating shafts (51) rotatably connected to the side wall of the second mounting groove (322), a second rotating wheel (52) fixedly connected to the outer wall of the rotating shafts (51), and a second conveyor belt (53) sleeved on the outer wall of the plurality of second rotating wheels (52). At least one of the rotating shafts (51) passes through the groove wall of the second mounting groove (322) and is fixedly connected to the output shaft of the drive source (6).

6. The heat-sealing and shaping device for heat-shrink tubing according to claim 3, characterized in that: The mounting bracket (31) is fixedly connected to a cable shelf (33) on the side away from the base (1) for placing the heat-shrinkable cable to be processed.

7. The heat-sealing and shaping device for heat-shrink tubing according to claim 1, characterized in that: A controller (9) is provided on both sides of the first frame (2), and the controller (9) is fixedly connected to the base (1).

8. A heat-sealing and shaping device for heat-shrink tubing according to claim 5, characterized in that: An auxiliary flipping device (10) is provided in the first mounting groove (321). The auxiliary flipping device (10) includes a transmission assembly (101) and a plurality of flipping units (102). The transmission assembly (101) includes a plurality of transmission wheels (1012) rotatably connected to the inner wall of the first mounting groove (321) via a first connecting shaft (1011), a plurality of drive wheels (1014) rotatably connected to the inner wall of the first mounting groove (321) via a second connecting shaft (1013), at least one auxiliary wheel (1016) rotatably connected to the inner wall of the first mounting groove (321) via a third connecting shaft (1015), and a third transmission belt (1017) sleeved on the outer wall of the transmission wheels (1012), drive wheels (1014) and auxiliary wheels (1016).

9. A heat-sealing and shaping device for heat-shrink tubing according to claim 8, characterized in that: One of the second connecting shafts (1014) has two ends that pass through the side wall of the first mounting groove (321) and are fixedly connected to the corresponding rotating shaft (51).

10. A heat-sealing and shaping device for heat-shrink tubing according to claim 8, characterized in that: At least two flipping units (102) are connected to each of the first connecting shafts (1011). The two flipping units (102) are symmetrically arranged with the transmission wheel (1012) as the center. Each flipping unit (102) includes a flipping wheel (1021) fixedly connected to the outer wall of the first connecting shaft (1011) and a plurality of actuating protrusions (1022) fixedly connected to the outer wall of the flipping wheel (1021). The actuating protrusions (1022) are fixedly connected to a plurality of anti-slip blocks (1023) on the side surface pointing to the rotation direction of the flipping wheel (1021).

Images