Heat shrinkable component expansion equipment and expansion systems

Abstract

The present invention discloses a heat shrink component expansion device and expansion system for expanding heat shrink components, wherein the heat shrink component expansion device includes a base, a fixed mold, a first drive assembly, a second drive assembly, an upper mold, and an expansion mold; the base has an expansion position; the fixed mold has a supporting hole for placing the heat shrink component; the driving part of the first drive assembly drives and connects the fixed mold or the base so that the fixed mold and the base can move linearly relative to each other; the second drive assembly is located above the expansion position; the upper mold is connected to the second drive assembly, and the upper mold is provided with a through hole; the expansion mold is connected to the second drive assembly and is passed through the through hole. The technical solution of the present invention is intended to realize automatic expansion and discharging of heat shrink components, making the expansion of heat shrink components more stable and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of heat shrinkable component processing, and in particular to a heat shrinkable component expansion device and an expansion system. Background Art

[0002] With the continuous improvement of informatization, the demand for electricity in more and more places is rapidly increasing. Therefore, it is necessary to strengthen the insulation protection of circuits. Heat shrinkable components, as a commonly used insulation protection product, have broad application prospects.

[0003] Heat-shrinkable sheds differ from conventional heat-shrinkable components in that, due to their structure, only the straight lower portion of the shed needs to be heated and expanded during expansion, while the upper portion remains unchanged. This ensures that the upper portion maintains its excellent insulation and protective properties. Expansion of existing heat-shrinkable sheds is cumbersome, requiring the preheated shed to be placed in an expansion device for expansion, and then manually removed for cooling or unloading, which is time-consuming and labor-intensive, reducing operational efficiency. Summary of the Invention

[0004] The main purpose of the present invention is to provide a heat shrink component expansion device, which aims to realize automatic expansion and discharge of the heat shrink component, making the expansion of the heat shrink component more stable and reliable.

[0005] To achieve the above-mentioned purpose, the heat shrink component expansion device proposed in the present invention includes a base, a fixed mold, a first drive assembly, a second drive assembly, an upper mold and an expansion mold, wherein the base has an expansion position; the fixed mold has a supporting hole for placing the heat shrink component; the driving part of the first drive assembly drives and connects the fixed mold or the base so that the fixed mold and the base can move linearly relative to each other, and the fixed mold has a first state located at the expansion position and a second state away from the expansion position; the second drive assembly is arranged on the base and is located above the expansion position; the upper mold is connected to The second driving assembly has a fixed state for pressing the heat shrink component against the fixed mold and a reset state for moving away from the fixed mold, and a through hole is opened in the middle of the upper mold; the expansion mold is connected to the second driving assembly and is passed through the through hole, and the expansion mold has an expanded state for moving downward relative to the upper mold and a blanking state for moving upward relative to the upper mold; when the fixed mold is in the first state, the expansion mold is in the expanded state to penetrate into and expand the tube body of the heat shrink component; when the fixed mold is in the second state, the expansion mold is in the blanking state to detach the heat shrink component.

[0006] In one embodiment of the present application, the expansion mold includes a support tube and a cone head, one end of the support tube is connected to the second drive assembly, and the other end is connected to the cone head, and the cone head is made of Teflon.

[0007] In one embodiment of the present application, the upper mold is provided with a pipe joint, and the upper mold is provided with an annular groove arranged around the through hole, so that a circulation channel is formed between the upper mold and the expansion mold, one end of the pipe joint is connected to the annular groove, and the other end is connected to an external coolant source; the fixed mold is provided with a cooling channel, and the cooling channel is connected to the supporting hole.

[0008] In one embodiment of the present application, the heat shrinkable component expansion device further includes a coolant tank, which is communicated with the supporting hole for receiving coolant.

[0009] In one embodiment of the present application, a waterproof ring is provided at the opening edge of the supporting hole of the fixed mold;

[0010] And / or, a sealing ring is provided on the inner wall of the through hole of the upper die or the outer wall of the expansion die, and the sealing ring is provided on the side of the annular groove away from the supporting hole.

[0011] In one embodiment of the present application, the coolant is a mixed solution of detergent and water, which is used to cool the heat shrinkable component and lubricate the expansion mold.

[0012] In one embodiment of the present application, the heat shrinkable component expansion device also includes a vertical plate, an upper slide and a lower slide, one end of the vertical plate is connected to the base, and the other end extends in a direction away from the base, the second drive assembly includes a first drive member and a second drive member, the first drive member and the second drive member are both arranged at the other end of the vertical plate, the upper slide and the lower slide can be slidably connected to the vertical plate; the upper slide is connected to the first drive member, the lower slide is connected to the second drive member, the expansion mold is connected to the side of the upper slide away from the first drive member, and the upper mold is connected to the side of the lower slide away from the second drive member.

[0013] In one embodiment of the present application, a buffer portion is provided on a side of the lower slide facing the upper slide; and / or the vertical plate is further provided with two first guide rails arranged side by side, and the upper slide and the lower slide are respectively provided with two first sliders, one first slider is slidably connected to the two first guide rails, and the second drive assembly drives the first slider to drive the upper slide and / or the lower slide to move back and forth in a straight line along the first guide rail, thereby driving the expansion mold and / or the upper mold to move back and forth in a straight line along the first guide rail.

[0014] In one embodiment of the present application, the heat shrinkable component expansion device also includes a base plate, the fixed mold is arranged on the base plate, the base plate is provided with two second guide rails arranged side by side, and a discharge port is opened between the two second guide rails; the base is provided with two opposite second sliders, the first drive component is installed on the base and is driven and connected to the base plate, the first drive component drives the base plate to move and drives the second slider to move back and forth in a straight line along the second guide rail, so that the fixed mold and the discharge port move alternately to the expansion position.

[0015] The present invention also proposes an expansion system, including an equipment base, a feeding mechanism, a heating mechanism, a heat shrinkable component expansion device and a transfer clamping mechanism. The feeding mechanism is arranged at the equipment base, for placing the heat shrinkable component to be heated and delivering it to a designated area; the heating mechanism is arranged at the equipment base adjacent to the feeding mechanism, for heating the tube body of the heat shrinkable component; wherein the heat shrinkable component expansion device is the above-mentioned heat shrinkable component expansion device, and the base of the heat shrinkable component expansion device is fixed to the equipment base; the transfer clamping mechanism is arranged at the equipment base, for transferring the heat shrinkable component in the designated area to the heating mechanism, and transferring the heated heat shrinkable component to the fixed mold.

[0016] The expansion process of the heat shrinkable component expansion device proposed in the technical solution of the present invention is as follows: the fixed mold is initially in a first state away from the expansion position, the heat shrinkable component is placed in the supporting hole, the fixed mold is driven by the first drive component to move toward the base, and is in a second state located in the expansion position, the second drive component drives the upper mold to move from the reset state to the fixed state, pressing the heat shrinkable component against the fixed mold, the second drive component drives the expansion mold to move downward relative to the upper mold, completing the expansion of the tube body of the heat shrinkable component, the second drive component drives the upper mold and the expansion mold to move the expanded heat shrinkable component upward at the same time, the fixed mold returns to the first state, the upper mold moves downward relative to the expansion mold, the heat shrinkable component is separated from the expansion mold, and the discharge is completed. The technical solution of the present invention is intended to realize the automatic expansion and discharge of the heat shrinkable component, make the expansion of the heat shrinkable component more stable and reliable, and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0018] Figure 1 This is a structural schematic diagram of an embodiment of a heat shrinkable component expansion device according to the present invention, in which the fixed mold is in a second state and the upper mold is in a fixed state;

[0019] Figure 2 for Figure 1 A cross-sectional view of the expansion die in the heat shrinkable component expansion device shown in FIG. 1 when the expansion die is in an expanded state;

[0020] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0021] Figure 4 for Figure 1 The schematic structural diagram shows that the fixed mold in the heat shrinkable component expansion device is in the first state.

[0022] Description of Figure Numbers:

[0023]

[0024] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0028] Heat-shrinkable components, as common insulation and protection products, have broad application prospects. Unlike conventional heat-shrinkable components, heat-shrinkable sheds, due to their structure, only require heating and expansion of the straight lower portion of the shed during expansion, while the upper portion remains unchanged, maintaining the upper portion's effective insulation and protection. Existing heat-shrinkable shed expansion procedures are cumbersome, requiring the preheated shed to be placed in an expansion device for expansion and then manually removed for cooling or unloading, which is time-consuming and labor-intensive, reducing operational efficiency. Therefore, the present invention proposes a heat-shrinkable component expansion device designed to automatically expand and unload heat-shrinkable components, ensuring smoother and more reliable expansion.

[0029] Please refer to Figures 1 to 4 In an embodiment of the present invention, the heat shrink component expansion device 1 includes a base 20, a fixed mold 30, a first drive assembly 40, a second drive assembly 50, an upper mold 60, and an expansion mold 70. The base 20 has an expansion position 201; the fixed mold 30 has a supporting hole 301 for placing the heat shrink component; the driving part of the first drive assembly 40 drives the connection between the fixed mold 30 and the base 20 so that the fixed mold 30 and the base 20 can move linearly relative to each other, and the fixed mold 30 has a first state at the expansion position 201 and a second state away from the expansion position 201; the second drive assembly 50 is provided on the base 20 and is located above the expansion position 201; the upper mold 60 is connected to the second drive assembly 50 to have the function of pressing the heat shrink component against the fixed mold 30. The fixed state of the fixed mold 30 and the reset state away from the fixed mold 30, a through hole 601 is opened in the middle of the upper mold 60; the expansion mold 70 is connected to the second driving assembly 50 and is penetrated by the through hole 601, and the expansion mold 70 has an expansion state that moves downward relative to the upper mold 60 and a blanking state that moves upward relative to the upper mold 60; when the fixed mold 30 is in the first state, the expansion mold 70 is in the expansion state to penetrate and expand the tube body of the heat shrink component; when the fixed mold 30 is in the second state, the expansion mold 70 is in the blanking state to detach the heat shrink component.

[0030] In this embodiment, the fixed mold 30 is a metal cylinder with an internal support hole 301. Metal materials offer excellent pressure and wear resistance, saving costs. The cylindrical shape saves material and provides a smooth surface, preventing accidental damage. Taking the heat-shrinkable shed as an example, to better fit the shed, the support hole 301 is designed as an umbrella-shaped through-hole that matches the shed, ensuring stable placement and preventing deviation during expansion. The expansion position 201 is a semicircular notch on the base 20 that matches the outer shape of the fixed mold 30. This ensures a perfect fit between the fixed mold 30 and the base 20, facilitating positioning of the fixed mold 30 and preventing interference or slippage between the fixed mold 30 and the base 20, which could affect the accuracy of the fixed mold 30 and prevent expansion deviation. It is understood that in other embodiments, the fixed mold 30 can be made of other materials or shapes, such as a rigid plastic rectangular block, with the internal support hole 301. In this case, the expansion position 201 is a rectangular notch that matches the fixed mold 30. Of course, in other embodiments, the heat shrink component may also be a heat shrink tube, etc.

[0031] The first drive assembly 40 is a pneumatic cylinder with a simple structure, making it easy to install and maintain. The cylinder drive unit drives the base 20, causing it to move linearly relative to the fixed mold 30, thereby automatically moving the fixed mold 30 away from or toward the base 20. In other examples, the cylinder drive unit can also drive the fixed mold 30 to move linearly relative to the base 20 to achieve the above effect. Of course, in other embodiments, the first drive assembly 40 can also be a motor or other drive device to automatically move the fixed mold 30 away from or toward the base 20.

[0032] The second drive assembly 50 is a cylinder assembly consisting of two side-by-side pneumatic cylinders. The drive units of the two cylinders respectively drive and connect the upper mold 60 and the expansion mold 70, driving the upper mold 60 and the expansion mold 70 to move vertically. Using two cylinders to independently control the upper mold 60 and the expansion mold 70 enables relative movement between the upper mold 60 and the expansion mold 70, thereby achieving automatic expansion of the heat-shrinkable sheds and automatic discharge of the product. It is understood that in other embodiments, the second drive assembly 50 may also be two linear motors or two other drive devices to achieve vertical movement of the upper mold 60 and the expansion mold 70.

[0033] Taking the expansion of heat-shrinkable sheds as an example, a truncated cone matching the shape of the support hole 301 is provided on the side of the upper mold 60 near the support hole 301, and a through hole 601 extends through the cone. The metal material of the upper mold 60 ensures that it has sufficient weight to hold the heat-shrinkable shed against the fixed mold 30. This prevents the shed from moving during expansion, reduces scrap, and saves material costs. The truncated cone shape, which matches the shape of the support hole 301, provides a more consistent fit with the shed and provides a better holding effect. The through hole 601, located in the center of the upper mold 60, is used to pass through the expansion die 70. The expansion die 70 has an expansion state (moving downward relative to the upper mold 60) and an upward state (moving upward relative to the upper mold 60). Guided by the through hole 601, the expansion die 70 precisely expands the center of the heat-shrinkable shed tube, eliminating the time-consuming task of aligning the expansion die 70 with the center of the shed tube, thus improving expansion efficiency.

[0034] The expansion process of the heat-shrinkable component expansion device proposed in this embodiment is as follows: the fixed mold 30 is initially in a first state away from the expansion position 201, and the heat-shrinkable umbrella skirt is placed in the supporting hole 301. The fixed mold 30 is driven by the first driving assembly 40 to move toward the base 20 and is in a second state located at the expansion position 201. The second driving assembly 50 drives the upper mold 60 to move from the reset state to the fixed state, pressing the heat-shrinkable umbrella skirt against the fixed mold 30. The second driving assembly 50 drives the expansion mold 70 to move downward relative to the upper mold 60 to complete the expansion of the heat-shrinkable umbrella skirt tube body. The second driving assembly 50 drives the upper mold 60 and the expansion mold 70 to move the expanded heat-shrinkable umbrella skirt upward at the same time. The fixed mold 30 returns to the first state, and the upper mold 60 moves downward relative to the expansion mold 70 to separate the heat-shrinkable umbrella skirt from the expansion mold 70, completing the discharge, thereby realizing automatic expansion and discharge of the heat-shrinkable umbrella skirt, making the expansion of the heat-shrinkable umbrella skirt more stable and reliable, and improving the processing efficiency.

[0035] It should be noted that the shapes of the supporting hole 301 and the upper mold 60 should be changed according to the shape of the heat-shrinkable component to be expanded to ensure that the upper mold 60 can press the heat-shrinkable component to be expanded on the upper mold 60, and the upper mold 60 and the heat-shrinkable component, and the heat-shrinkable component and the fixed mold 30 fit tightly to ensure the smoothness and accuracy of the expansion process, reduce the scrap rate, and save material costs.

[0036] Please refer to Figure 1 In one embodiment of the present application, the expansion mold 70 includes a support tube 701 and a cone head 702. One end of the support tube 701 is connected to the second drive assembly 50, and the other end is connected to the cone head 702. The cone head 702 is made of Teflon.

[0037] In this embodiment, the expansion die 70 comprises a support tube 701 and a cone head 702. The support tube 701 is made of metal, such as stainless steel, to enhance the overall strength of the expansion die 70 and prevent it from bending or damaging due to insufficient strength when expanding the heat-shrinkable umbrella skirt. The cone head 702 is made of Teflon because of its self-lubricating properties, which facilitates the expansion process. One end of the support tube 701 is connected to the second drive assembly 50 via contour screws, allowing a small range of movement for the expansion die 70, facilitating automatic alignment. The other end is plugged into the cone head 702, providing a secure connection that prevents it from falling off due to upward reaction forces from the heat-shrinkable umbrella skirt. Of course, in other embodiments, the other end of the support tube 701 can also be connected to the cone head 702 via threads or other methods.

[0038] See Figure 1 and Figure 3 In one embodiment of the present application, the upper mold 60 is provided with a pipe joint 602, and the upper mold 60 is provided with an annular groove 603 arranged around the through hole 601, so that a circulation channel can be formed between the upper mold 60 and the expansion mold 70, and one end of the pipe joint 602 is connected to the annular groove 603, and the other end is connected to an external coolant source; the fixed mold 30 is provided with a cooling channel 302, and the cooling channel 302 is connected to the supporting hole 301.

[0039] In this embodiment, the cooling channel 302 is disposed within the fixed mold 30 and surrounds the support hole 301. Both the upper and lower ends of the cooling channel 302 are open. When the upper mold 60 presses against the fixed mold 30, the upper opening of the cooling channel 302 communicates with the upper portion of the support hole 301, while the lower opening of the cooling channel 302 communicates with the bottom portion of the support hole 301. As will be appreciated, coolant flows from an external coolant source through the pipe joint 602 into the annular groove 603. Some of the coolant flows downward through the heat shrink component's tube body, while another portion overflows from the upper edge of the support hole 301 into the cooling channel 302 and then flows out from the bottom portion of the support hole 301. This simultaneously cools the inner and outer walls of the heat shrink shed, improving cooling efficiency. Optionally, the annular groove 603 can be disposed in the vertical center of the upper mold 60. The pipe joint 602 can extend through the upper surface of the upper mold 600 to connect to the annular groove 603, thereby reducing coolant spillage. The spatial shape of the circulation channel may be funnel-shaped, so as to facilitate guiding the coolant into the through hole 601 and contacting the heat shrink component.

[0040] Of course, the vertical distance between the cooling channel 302 and the hole wall of the supporting hole 301 should not be too large. On the basis of ensuring the structural strength, it should be as close to the supporting hole 301 as possible to achieve a better cooling effect.

[0041] Please refer to Figure 1 and Figure 2In one embodiment of the present application, the heat shrinkable component expansion device 1 further includes a coolant tank 80 , which is connected to the supporting hole 301 for receiving coolant.

[0042] In this embodiment, to recycle the coolant and conserve resources, a coolant tank 80 is provided, connected to the support hole 301. The coolant tank 80 is fixed to the bottom surface of the bottom mold 30 and can move with the movement of the bottom mold 30. In other embodiments, the coolant tank 80 can also be separated from the bottom mold 30 and connected via a pipe. Furthermore, a hole is provided on the side of the coolant tank 80 to facilitate gas outflow.

[0043] Please refer to Figure 3 In one embodiment of the present application, a waterproof ring 303 is provided at the opening edge of the supporting hole 301 of the fixed mold 30;

[0044] And / or, a sealing ring 703 is provided on the inner wall of the through hole 601 of the upper mold 60 or the outer wall of the expansion mold 70. The sealing ring 703 is provided on the side of the annular groove 603 away from the supporting hole 301 to prevent the coolant from overflowing upward.

[0045] In this embodiment, to prevent the coolant from escaping, a waterproof ring 303 is provided at the edge of the opening of the fixed mold 30. This ring 303 fits over the perimeter of the fixed mold 30 and is taller than the fixed mold 30 itself, thereby preventing the coolant from escaping from the upper opening of the cooling channel 302. The inner circumference of the waterproof ring 303 is provided with two spaced-apart sealing rings arranged side by side. These provide an interference fit with the outer wall of the fixed mold 30 and the outer circumferential wall of the upper mold 60, further enhancing the sealing performance.

[0046] With or without the above-mentioned waterproof ring 303 structure, in order to prevent the coolant from overflowing upward from the through hole 601, a sealing ring 703 is provided on the inner wall of the through hole 601 of the upper mold 60 or the outer wall of the expansion mold 70 to seal the gap between the through hole 601 and the expansion mold 70, thereby further improving the sealing performance.

[0047] In one embodiment of the present application, the coolant is a mixed solution of detergent and water, which is used to cool the heat shrinkable component and lubricate the expansion mold.

[0048] In this embodiment, a mixture of dishwashing liquid and water is used as the coolant. Water, with its higher specific heat capacity, effectively cools the heat-shrinkable sheds. Adding dishwashing liquid to the water lubricates the expansion die, facilitating a smoother expansion process. Furthermore, using a mixture of dishwashing liquid and water as the coolant is economical and cost-effective. Of course, other liquids capable of absorbing heat and providing lubrication can also be used as the coolant in other embodiments.

[0049] Please refer again Figure 1In one embodiment of the present application, the heat shrink component expansion device 1 also includes a vertical plate 90, an upper slide 10 and a lower slide 11. One end of the vertical plate 90 is connected to the base 20, and the other end extends in a direction away from the base 20. The second drive assembly 50 includes a first drive member 501 and a second drive member 502. The first drive member 501 and the second drive member 502 are both arranged at the other end of the vertical plate 90. The upper slide 10 and the lower slide 11 can both be slidably connected to the vertical plate 90; the upper slide 10 is connected to the first drive member 501, and the lower slide 11 is connected to the second drive member 502. The expansion mold 70 is connected to the side of the upper slide 10 away from the first drive member 501, and the upper mold 60 is connected to the side of the lower slide 11 away from the second drive member 502.

[0050] In this embodiment, a vertical plate 90 is provided to connect the second drive assembly 50 and the base 20. One end of the vertical plate 90 is vertically connected to the base 20, and the second drive assembly 50 is provided at the other end. At the same time, the second drive assembly 50 includes a first drive member 501 and a second drive member 502, which ensures that the drive axes of the first drive member 501 and the second drive member 502 are vertically downward, and can ensure that the movement trajectory of the drive axis is vertically downward, thereby ensuring that the movement trajectory of the expansion mold 70 is vertically downward, making the expansion more precise, improving the expansion success rate, and saving costs. Both the upper slide 10 and the lower slide 11 can be slidably connected to the vertical plate 90 and are arranged parallel to the base 20. The upper slide 10 is connected to the first driving member 501, and the lower slide 11 is connected to the second driving member 502. The expansion mold 70 is connected to the side of the upper slide 10 away from the first driving member 501, and the upper mold 60 is connected to the side of the lower slide 11 away from the second driving member 502. Compared with being directly connected to the drive shaft, the connection through the slide is more stable. During vertical movement, the horizontal position is not easy to change, which saves time in aligning the expansion mold 70 with the center of the heat shrinkable umbrella skirt tube body and improves the expansion efficiency.

[0051] Please refer to Figure 1 In one embodiment of the present application, a buffer portion 111 is provided on a side of the lower slide 11 facing the upper slide 10;

[0052] And / or, the vertical plate 90 is also provided with two first guide rails 901 arranged side by side, the upper slide 10 and the lower slide 11 are respectively provided with two first sliders (101, 112), one first slider (101, 112) is slidingly connected to the two first guide rails 901, and the second drive component 50 drives the first slider (101, 112) to drive the upper slide 10 and / or the lower slide 11 to move back and forth in a straight line along the first guide rail 901, thereby driving the expansion mold 70 and / or the upper mold 60 to move back and forth in a straight line along the first guide rail 901.

[0053] In this embodiment, in order to further limit the movement trajectory of the expansion mold 70 and the upper mold 60, two first guide rails 901 are arranged side by side on the vertical plate 90. At the same time, the upper slide 10 is provided with two first sliders 101, and the lower slide is provided with two first sliders 112. The spacing between the two adjacent first sliders (101, 112) coincides with the spacing between the two first guide rails 901. The first driving member 501 drives the upper slide 10, and the second driving member 502 drives the lower slide 11 to drive the two first sliders (101, 112) to perform vertical reciprocating motion along the first guide rail 901, so that the upper slide 10 and the lower slide 11 respectively perform vertical reciprocating motion along the direction of the first guide rail 901, thereby driving the expansion mold 70 and the upper mold 60 to perform vertical reciprocating motion along the direction of the first guide rail 901, so that the movement trajectory of the expansion mold 70 and the upper mold 60 is controllable, and the expansion process is more stable and reliable.

[0054] Optionally, the buffer portion 111 is an elastic member, such as a spring, etc., for reducing the collision force between the upper slide 10 and the lower slide 11, thereby reducing the wear cost of the upper slide 10 and the lower slide 11. Of course, in other embodiments, the buffer portion 111 can also be provided as foam or sponge.

[0055] See Figure 1 and Figure 4 In one embodiment of the present application, the heat shrinkable component expansion device 1 also includes a bottom plate 12, the fixed mold 30 is arranged on the bottom plate 12, the bottom plate 12 is provided with two second guide rails 121 arranged side by side, and a discharge port 122 is opened between the two second guide rails 121; the base 20 is provided with two opposite second sliders 202, the first drive component 40 is installed on the base 20 and is driven and connected to the bottom plate 12, the first drive component 40 drives the bottom plate 12 to move and drives the second slider 202 to move back and forth in a straight line along the second guide rail 121, so that the fixed mold 30 and the discharge port 122 move alternately to the expansion position 201.

[0056] In this embodiment, a base plate 12 serves as the foundation upon which the fixed mold 30 and two second guide rails 121 are mounted. A discharge port 122 is defined on the base plate 12. Furthermore, two opposing second sliders 202 are positioned on the base plate 20 to mate with the second guide rails 121. A first drive assembly 40 drives the base plate 12 and drives the second sliders 202 to reciprocate along the second guide rails 121, enabling the fixed mold 30 and the discharge port 122 to alternately move to the expanded position 201. When the fixed mold 30 moves to the expanded position 201, the expansion mold 70 enters the expanded position and moves downward relative to the upper mold 60, inserting and expanding the heat-shrinkable shed tubes, achieving automatic expansion. When the discharge port 122 moves to the expanded position 201, the expansion mold 70 enters the unloading position, and the upper mold 60 moves downward, disengaging the heat-shrinkable sheds from the expansion mold 70 and allowing them to fall out of the discharge port 122, achieving automatic discharge. The entire expansion and discharge process is fully automated, requiring no manual intervention by the operator, thus improving efficiency.

[0057] The present invention also proposes an expansion system (not shown), which includes a device base, a feeding mechanism, a heating mechanism, a transfer clamping mechanism and a heat shrinkable component expansion device 1. The specific structure of the heat shrinkable component expansion device 1 refers to the above embodiment. Since this expansion system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0058] Among them, the feeding mechanism is arranged at the base of the equipment, which is used to place the heat-shrinkable components to be heated and push them to the designated area; the heating mechanism is arranged at the base of the equipment adjacent to the feeding mechanism, which is used to heat the tube body of the heat-shrinkable component; the heat-shrinkable component expansion device 1 is the above-mentioned heat-shrinkable component expansion device 1, and the base 20 of the heat-shrinkable component expansion device 1 is fixed to the base of the equipment; the transfer clamping mechanism is arranged at the base of the equipment, which is used to transfer the heat-shrinkable components in the designated area of ​​the feeding mechanism to the heating mechanism and transfer the heated heat-shrinkable umbrella skirts to the fixed mold 30. The processes of this expansion system are all automated operations, which further improves processing efficiency and processing accuracy.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heat shrink component expansion device, characterized in that: include: a base having an expanded position; A fixed mold having a supporting hole for placing the heat shrink component; a first drive assembly, wherein a drive portion of the first drive assembly drives and connects to the fixed mold or the base so that the fixed mold and the base can move linearly relative to each other, and the fixed mold has a first state in the expanded position and a second state away from the expanded position; a second drive assembly, the second drive assembly being disposed on the base and located above the expansion position; an upper mold connected to the second driving assembly to have a fixed state of pressing the heat shrinkable component against the fixed mold and a reset state away from the fixed mold, and a through hole is opened in the middle of the upper mold; and an expansion die connected to the second drive assembly and passing through the through hole, the expansion die having an expansion state in which the die moves downward relative to the upper die and a blanking state in which the die moves upward relative to the upper die; when the fixed die is in a first state, the expansion die is in an expansion state to penetrate and expand the tube body of the heat shrinkable component; when the fixed die is in a second state, the expansion die is in a blanking state to detach the heat shrinkable component; The upper die is provided with a pipe joint, and the upper die is provided with an annular groove arranged around the through hole, so that a circulation channel is formed between the upper die and the expansion die, one end of the pipe joint is connected to the annular groove, and the other end is connected to an external coolant source; The fixed mold is provided with a cooling channel, and the cooling channel is communicated with the supporting hole.

2. The heat shrinkable component expansion device according to claim 1, wherein: The expansion die includes a support tube and a cone head. One end of the support tube is connected to the second drive assembly, and the other end is connected to the cone head. The cone head is made of Teflon.

3. The heat shrinkable component expansion device according to claim 1, wherein: It also includes a coolant tank, which is communicated with the supporting hole and is used to receive coolant.

4. The heat shrinkable component expansion device according to claim 1, wherein: A waterproof ring is provided at the opening edge of the supporting hole of the fixed mold; And / or, a sealing ring is provided on the inner wall of the through hole of the upper die or the outer wall of the expansion die, and the sealing ring is provided on the side of the annular groove away from the supporting hole.

5. The heat shrinkable component expansion device according to any one of claims 1 to 4, characterized in that: The coolant is a mixed solution of detergent and water, and is used to cool the heat shrink component and lubricate the expansion die.

6. The heat shrinkable component expansion device according to any one of claims 1 to 4, characterized in that: The second driving assembly includes a first driving member and a second driving member, and the first driving member and the second driving member are both provided at the other end of the vertical plate, and the upper sliding platform and the lower sliding platform are both slidably connected to the vertical plate; The upper slide is connected to the first driving member, the lower slide is connected to the second driving member, the expansion mold is connected to the side of the upper slide away from the first driving member, and the upper mold is connected to the side of the lower slide away from the second driving member.

7. The heat shrinkable component expansion device according to claim 6, wherein: A buffer portion is provided on the side of the lower slide facing the upper slide; And / or, the vertical plate is also provided with two first guide rails arranged side by side, the upper slide and the lower slide are respectively provided with two first sliders, one first slider is slidingly connected to the two first guide rails, and the second drive assembly drives the two first sliders to drive the upper slide and / or the lower slide to move back and forth in a straight line along the first guide rail, thereby driving the expansion mold and / or the upper mold to move back and forth in a straight line along the first guide rail.

8. The heat shrinkable component expansion device according to any one of claims 1 to 4, characterized in that: It also includes a bottom plate, the fixed mold is arranged on the bottom plate, the bottom plate is provided with two second guide rails arranged side by side, and a discharge port is opened between the two second guide rails; The base is provided with two opposite second sliders, the first driving component is installed on the base and is driven and connected to the bottom plate, the first driving component drives the bottom plate to move and drives the second slider to move back and forth in a straight line along the second guide rail, so that the fixed mold and the discharge port move alternately to the expansion position.

9. An expansion system for expanding a heat shrinkable component, characterized in that: include: Equipment base; A feeding mechanism, which is provided on the base of the equipment and is used to place the heat shrinkable component to be heated and deliver it to a designated area; A heating mechanism, the heating mechanism being disposed on the equipment base adjacent to the feeding mechanism and being used for heating the tube body of the heat shrinkable component; A heat shrinkable component expansion device, wherein the heat shrinkable component expansion device is the heat shrinkable component expansion device according to any one of claims 1 to 8, and the base of the heat shrinkable component expansion device is fixed to the device base; A transfer clamping mechanism is provided on the base of the equipment and is used to transfer the heat shrinkable components in the designated area to the heating mechanism, and to transfer the heated heat shrinkable components to the fixed mold.

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