A heat shrink member expanding apparatus

Abstract

The application discloses a heat-shrunk part expansion equipment, which comprises a rack body, a rotating mechanism, a heating mechanism, a cooling mechanism and an expansion mechanism. The rotating mechanism, the heating mechanism, the cooling mechanism and the expansion mechanism are arranged, so that the automatic heating, cooling and expansion process of the heat-shrunk part are realized. The heating part is arranged below the lower die assembly heating station, the cooling part is arranged below the cooling station, and the expansion mechanism is arranged above the lower die assembly relative to the cooling mechanism. By integrating multiple stations in one rotating mechanism, the equipment floor area can be significantly reduced, and the space utilization rate is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat shrinkage part processing, and particularly relates to a heat shrinkage part expansion equipment. BACKGROUND

[0002] The production process of the heat shrinkage molding sleeve includes four main process steps of extrusion, injection molding, irradiation and expansion. In the current expansion process, the irradiated molding sleeve is often manually placed into an oven for heating to softening, and then taken out for mechanical expansion. After expansion, the taper die is placed into water for cooling, and then manually demolded. The whole process is complicated, low in efficiency, and easy to cause scalding. SUMMARY

[0003] The main purpose of the present application is to provide a heat shrinkage part expansion equipment, which aims to realize automatic heating, cooling and expansion process of the heat shrinkage part, reduce the equipment floor area, and improve the space utilization.

[0004] The above purpose of the present application is realized by the following technical scheme:

[0005] A heat shrinkage part expansion equipment comprises:

[0006] a rack body;

[0007] a rotating mechanism arranged in the rack body and comprising a lower die assembly, the lower die assembly comprising a lower die with a through hole and an elastic sleeve arranged on the lower die, the elastic sleeve externally sleeving the heat shrinkage part, and the lower die assembly rotating through a feeding station, a heating station, a cooling station and a discharging station;

[0008] a heating mechanism arranged in the rack body and comprising a heating element for heating the heat shrinkage part, the heating element being located below the heating station of the lower die assembly and comprising a heating position close to the lower die assembly and a recovery position away from the lower die assembly;

[0009] a cooling mechanism arranged in the rack body and comprising a cooling element for cooling the heat shrinkage part, the cooling element being located below the cooling station of the lower die assembly and comprising a cooling position close to the lower die assembly and a return position away from the lower die assembly;

[0010] an expansion mechanism arranged in the rack body and located above the lower die assembly relative to the cooling mechanism, the expansion mechanism comprising an upper die assembly, the upper die assembly comprising an expansion rod, and the upper die assembly having an expansion state and a discharging state, when the lower die assembly is in the cooling station, the upper die assembly moves downward relative to the lower die assembly to make the expansion rod pass through the through hole and enter the elastic sleeve to expand the heat shrinkage part, and the upper die assembly is in the expansion state; the upper die assembly moves upward relative to the lower die assembly to make the expansion rod separate from the heat shrinkage part, and the upper die assembly is in the discharging state.

[0011] Optionally, the expansion mechanism further comprises an expansion drive, an expansion bottom plate fixedly connected to the rack body, and an expansion movable plate in sliding connection with the expansion bottom plate, the upper die assembly is arranged on one side of the expansion movable plate close to the expansion bottom plate, the expansion bottom plate is provided with a through hole corresponding to the upper die assembly, and a driving portion of the expansion drive is in driving connection with the expansion movable plate, so that the upper die assembly reciprocates between the expanded state and the blanking state.

[0012] Optionally, the expansion movable plate is provided with a sleeving hole, the upper die assembly is fixedly arranged in the sleeving hole, the upper die assembly further comprises an upper die outer sleeve fixedly arranged in the sleeving hole and an upper die inner sleeve fixedly arranged in the upper die outer sleeve, and the expansion rod is connected to one side of the upper die inner sleeve close to the expansion bottom plate.

[0013] Optionally, the rotating mechanism further comprises a rotating drive, a stand, and a plurality of rotating shafts fixedly arranged on the stand, the number of the rotating shafts corresponds to the number of the workstations, the rotating shafts are uniformly distributed around the stand, the plurality of lower die assemblies are respectively fixedly arranged on the rotating shafts, one end of the stand is connected to a driving portion of the rotating drive, and the other end of the stand is rotatably connected to the rack body, and the rotating drive drives the stand to intermittently move, so that the plurality of lower die assemblies sequentially pass through the feeding workstation, the heating workstation, the cooling workstation and the blanking workstation in an orderly and intermittent manner.

[0014] Optionally, the heating mechanism comprises a first lifting seat fixedly connected to the rack body, a first lifting support in sliding connection with the first lifting seat, and a first drive, the heating member is arranged on the first lifting support, and a driving portion of the first drive is in driving connection with the first lifting support, so that the heating member reciprocates between the heating position and the recovery position.

[0015] Optionally, the heating member is a heating cylinder, the heating cylinder comprises a cylinder body, a heating rod extending into an inner cavity of the cylinder body, and a conical sleeve located at an opening of the cylinder body, the cylinder body is provided with a feeding port and a discharging port in communication with the inner cavity of the cylinder body, the feeding port is located close to the bottom of the cylinder body, and the discharging port is located close to the opening of the cylinder body.

[0016] Optionally, the cooling mechanism comprises a second lifting seat fixedly connected to the rack body, a second lifting support in sliding connection with the second lifting seat, and a second drive, the cooling member is arranged on the second lifting support, and a driving portion of the second drive is in driving connection with the second lifting support, so that the cooling member reciprocates between the cooling position and the recovery position.

[0017] Optionally, the heat shrink part expansion device further comprises a positioning mechanism between the expansion mechanism and the cooling position of the cooling mechanism, the positioning mechanism comprises a positioning seat arranged on the rack body, a positioning cylinder arranged on the positioning seat, and a positioning block connected with the output end of the positioning cylinder, and the lower die of the lower die assembly is provided with a positioning groove corresponding to the positioning block.

[0018] Optionally, the heat shrink part expansion device further comprises a supporting mechanism arranged adjacent to the rotating mechanism, the supporting mechanism comprises a supporting seat arranged on the rack body, a supporting cylinder arranged on the supporting seat, and a supporting rod connected with the output end of the supporting cylinder, and the supporting rod supports the lower die.

[0019] Optionally, the heat shrink part expansion device further comprises an air extraction mechanism arranged on the rack body, and the air extraction mechanism is arranged adjacent to the heating mechanism.

[0020] Alternatively, the elastic body is a steel wire sleeve, and the expansion rod is provided with an avoiding groove corresponding to the axial direction of the steel wire sleeve.

[0021] The heat shrink part expansion device comprises a rack body, a rotating mechanism, a heating mechanism, a cooling mechanism and an expansion mechanism. The rotating mechanism is arranged to rotate the lower die assembly and the heat shrink part between different stations. First, the lower die assembly is rotated to the feeding station to feed the heat shrink part by manually sleeving the heat shrink part outside the elastic sleeve. Then, the lower die assembly is rotated from the feeding station to the heating station, and the heating part is moved from the recovery position to the heating position to heat the heat shrink part. Next, the lower die assembly is rotated from the heating station to the cooling station, the upper die assembly is lowered relative to the lower die assembly, the expansion rod expands the heat shrink part, the cooling part is moved from the regression position to the cooling position to cool the expanded heat shrink part, and the upper die assembly is raised relative to the lower die assembly to separate the expanded heat shrink part from the cooling part. Finally, the lower die assembly is rotated from the cooling station to the discharging station to discharge the expanded heat shrink part by manually taking down the expanded heat shrink part. The automatic heating, cooling and expansion process of the heat shrink part is realized by arranging the rotating mechanism, the heating mechanism, the cooling mechanism and the expansion mechanism. The heating part is arranged below the heating station of the lower die assembly, the cooling part is arranged below the cooling station, and the expansion mechanism is arranged above the lower die assembly relative to the cooling mechanism. By integrating multiple stations in one rotating mechanism, the equipment floor area can be significantly reduced, and the space utilization rate can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on the drawings shown.

[0023] Figure 1 It is a perspective view of an embodiment of the heat shrinkage expansion device of the present application.

[0024] Figure 2 It is a rear view of an embodiment of the heat shrinkage expansion device of the present application.

[0025] Figure 3 It is another perspective view of an embodiment of the heat shrinkage expansion device of the present application.

[0026] Figure 4 It is still another perspective view of an embodiment of the heat shrinkage expansion device of the present application.

[0027] Figure 5 It is a top view of an embodiment of the heat shrinkage expansion device of the present application.

[0028] Figure 6 It is a structure diagram of a rotating mechanism of an embodiment of the heat shrinkage expansion device of the present application.

[0029] Figure 7 It is a structure diagram of a heating mechanism of an embodiment of the heat shrinkage expansion device of the present application.

[0030] Figure 8 It is a structure diagram of a cooling mechanism of an embodiment of the heat shrinkage expansion device of the present application.

[0031] Figure 9 It is a structure diagram of an expansion mechanism of an embodiment of the heat shrinkage expansion device of the present application.

[0032] Figure 10 It is a structure diagram of a positioning mechanism of an embodiment of the heat shrinkage expansion device of the present application.

[0033] Figure 11 It is a structure diagram of a supporting mechanism of an embodiment of the heat shrinkage expansion device of the present application.

[0034] Explanation of reference signs:

[0035]

[0036] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0038] It should be noted that all directional indications, such as upper, lower, left, right, front, back, and the like, are used for interpretation of relative locations between components, movement direction, and the like, and are not meant to limit the scope of the present application to only the positions described.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation", and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements, or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In addition, in the present application, the description such as "first", "second", and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features, or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is to include three parallel solutions, for example, "A and / or B" includes A solution, or B solution, or A and B solutions at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0041] The production process of the heat shrinkable molding sleeve includes four main process steps of extrusion, injection molding, irradiation and expansion. In the current expansion process, the irradiated molding sleeve is often put into an oven by artificial heating to soften, and then taken out for mechanical expansion. After expansion, the taper die is placed in water for cooling, and then artificial demolding is carried out. The whole process is complicated, low in efficiency, and easy to cause scald. In view of this situation, a heat shrinkage expansion equipment 100 is provided, which can realize automatic expansion of heat shrinkage, reduce equipment floor area, and improve space utilization.

[0042] Please refer to Figures 1-11The heat-shrinkable part expansion device 100 comprises a rack body 10, a rotating mechanism 20, a heating mechanism 30, a cooling mechanism 40 and an expansion mechanism 50. The rotating mechanism 20 is arranged on the rack body 10 and comprises a lower mold assembly 21. The lower mold assembly 21 comprises a lower mold 211 provided with a through hole 211A and an elastic sleeve 212 arranged on the lower mold 211. The elastic sleeve 212 is externally sleeved with the heat-shrinkable part. The lower mold assembly 21 rotates through a feeding station 201, a heating station 202, a cooling station 203 and a discharging station 204. The heating mechanism 30 is arranged on the rack body 10 and comprises a heating element 34 for heating the heat-shrinkable part. The heating element 34 is located below the heating station 202 of the lower mold assembly 21 and comprises a heating position 301 close to the lower mold assembly 21 and a recovery position 302 away from the lower mold assembly 21. The cooling mechanism 40 is arranged on the rack body 10 and comprises a cooling element 44 for cooling the heat-shrinkable part. The cooling element 44 is located below the cooling station 203 of the lower mold assembly 21 and comprises a cooling position 401 close to the lower mold assembly 21 and a recovery position 402 away from the lower mold assembly 21. The expansion mechanism 50 is arranged on the rack body 10 and located above the lower mold assembly 21 relative to the cooling mechanism 40. The expansion mechanism 50 comprises an upper mold assembly 51. The upper mold assembly 51 comprises an expansion rod 511. The upper mold assembly 51 has an expansion state and a discharging state. When the lower mold assembly 21 is located at the cooling station 203, the upper mold assembly 51 moves downward relative to the lower mold assembly 21 so that the expansion rod 511 penetrates into the elastic sleeve 212 through the through hole 211A to expand the heat-shrinkable part. The upper mold assembly 51 is in the expansion state. The upper mold assembly 51 moves upward relative to the lower mold assembly 21 so that the expansion rod 511 is separated from the heat-shrinkable part. The upper mold assembly 51 is in the discharging state.

[0043] It can be understood that the rack body 10 is the basic structure of the entire heat-shrinkable part expansion device 100 and is used for supporting the rotating mechanism 20, the heating mechanism 30, the cooling mechanism 40 and the expansion mechanism 50. The rack body 10 can be a rack, a mounting rack, a support rack, a rack body, a mounting surface or a mounting plate, etc. without limitation.

[0044] It can be understood that the heat shrink member can be a common heat shrink tube, or a special-shaped molded sleeve. The molded sleeve can be various shapes, such as a straight molded sleeve, a Y-shaped molded sleeve, a three-finger molded sleeve, etc. It can also be a curved molded sleeve, as long as the shape of the expansion rod 511 matches the shape of the molded sleeve. Of course, the heat shrink member can also be a heat shrink tube with other shapes that is open at both ends, as long as the heat shrink member can be sleeved outside the elastic sleeve 212. The elastic sleeve 212 is made of a plurality of metal wires, polymer wires, or other elongated wires with elastic deformation. One end of the elongated wire is arranged around the through hole 211A of the lower mold 211, and the other end is gathered to form a gathering end. Taking a three-finger molded sleeve as an example, the lower mold 211 has three through holes arranged in the order of the positions of the three-finger sleeve. The elastic sleeve 212 has three groups of elastic deformation elongated wires, each group having about 12-20 wires. One end of each group of elongated wires is arranged around the through hole 211A of the lower mold 211, and the gathering end is gathered with a rope or other object. In this way, the elastic sleeve 212 has three groups of tapered elongated wires. When in use, the three fingers of the three-finger molded sleeve are respectively sleeved into the elongated wires from the three gathering ends. For other shapes of heat shrink members, the elastic sleeve 212 matches the shape of the heat shrink member, which is not limited here. Further, if the elastic sleeve 212 is a steel wire sleeve or a polymer wire sleeve, in order to make the expanded heat shrink member more beautiful, the expansion rod 511 has a avoiding groove 511A corresponding to the axial direction of the elastic sleeve 212.

[0045] It can be understood that the lower mold assembly 21 is intermittently driven and controlled by the external driving mechanism, PLC or other control system, to ensure that the lower mold assembly 21 is driven according to the predetermined sequence and time interval, so that the lower mold assembly 21 passes through each station, such as sequentially passing through the feeding station 201, the heating station 202, the cooling station 203 and the discharging station 204. It can also be a feeding station, a first heating station, a second heating station, a cooling station and a discharging station. Passing through two heating stations can make the heat shrink member heat and soften more efficiently, which is beneficial to the next expansion process. The sequence and number of stations passed through by the lower mold assembly 21 can be determined according to actual conditions, which is not limited here.

[0046] It can be understood that the heating member 34 can be a resistance wire heating, infrared heating, steam heating, heating oil heating and the like, which is not limited here. The heating member 34 is located below the heating station 202 of the lower mold assembly 21, including two positions, one is the heating position 301 close to the lower mold assembly 21, used for heating the heat shrink member; the other is the recovery position 302 away from the lower mold assembly 21, used for returning to the initial position after heating is completed. The heating member 34 reciprocates between the heating position 301 and the recovery position 302 through the lifting structure, which can be a connecting rod structure, a gear structure or a cam structure, as long as it can realize accurate motion trajectory and position control, which is not limited here. The cooling member 44 can be air cooling, cooling liquid cooling and the like, which is not limited here. The cooling member 44 is located below the cooling station 203 of the lower mold assembly 21, including two positions, one is the cooling position 401 close to the lower mold assembly 21, used for cooling the heated heat shrink member; the other is the return position 402 away from the lower mold assembly 21, used for returning to the initial position after cooling is completed. The cooling member 44 reciprocates between the cooling position 401 and the return position 402 through the lifting structure, which can be a connecting rod structure, a gear structure or a cam structure, as long as it can realize accurate motion trajectory and position control, which is not limited here. The lifting structures of the heating member 34 and the cooling member 44 can be the same or different, which can be determined according to the actual situation, which is not limited here.

[0047] It can be understood that the expansion mechanism 50 is located above the lower mold assembly 21 relative to the cooling mechanism 40. The upper mold assembly 51 includes an expansion rod 511, the structure of the expansion rod 511 matches the structure of the heat shrink member. The heat shrink member is a straight shrink sleeve or a common heat shrink tube, and the expansion rod 511 corresponds to a tapered rod. The heat shrink member is a three-finger shrink sleeve, and the expansion rod 511 corresponds to three tapered rods. The structure of the expansion rod 511 matches the structure of the heat shrink member, which is not limited here. The upper mold assembly 51 has an expansion state and a blanking state. When the lower mold assembly 21 is at the cooling station 203, the upper mold assembly 51 moves downward relative to the lower mold assembly 21, so that the expansion rod 511 expands the heat shrink member by passing through the through hole 211A into the elastic sleeve 212. The upper mold assembly 51 is in the expansion state. The upper mold assembly 51 moves upward relative to the lower mold assembly 21, so that the expansion rod 511 is separated from the heat shrink member. The upper mold assembly 51 is in the blanking state. The upper mold assembly 51 reciprocates between the expansion state and the blanking state through the lifting structure, which can be a connecting rod structure, a gear structure or a cam structure, as long as it can realize accurate motion trajectory and position control, which is not limited here.

[0048] The heat shrinkable part expansion device 100 comprises a rack body 10, a rotating mechanism 20, a heating mechanism 30, a cooling mechanism 40 and an expansion mechanism 50. The rotating mechanism 20 is arranged to drive the lower die assembly 21 to rotate the heat shrinkable part between different workstations. First, the lower die assembly 21 is rotated to the feeding workstation 201 to feed the heat shrinkable part, and the heat shrinkable part is manually sleeved on the outside of the elastic sleeve 212. Then, the lower die assembly 21 is rotated from the feeding workstation 201 to the heating workstation 202, the heating part 34 is moved from the recovery position 302 to the heating position 301 to heat the heat shrinkable part. Second, the lower die assembly 21 is rotated from the heating workstation 202 to the cooling workstation 203, the upper die assembly 51 is lowered relative to the lower die assembly 21, the expansion rod 511 expands the heat shrinkable part, the cooling part 44 is moved from the recovery position 402 to the cooling position 401 to cool the expanded heat shrinkable part, and the upper die assembly 51 is raised relative to the lower die assembly 21 to separate the expansion rod 511 from the cooled heat shrinkable part. Finally, the lower die assembly 21 is rotated from the cooling workstation 203 to the discharging workstation 204 to discharge the expanded heat shrinkable part. The automatic heating, cooling and expansion process of the heat shrinkable part is realized by arranging the rotating mechanism 20, the heating mechanism 30, the cooling mechanism 40 and the expansion mechanism 50. The heating part 34 is arranged below the heating workstation 202 of the lower die assembly 21, the cooling part 44 is arranged below the cooling workstation, and the expansion mechanism 50 is arranged above the lower die assembly 21 relative to the cooling mechanism 40. By integrating multiple workstations in one rotating mechanism 20, the equipment floor area can be significantly reduced, and the space utilization can be improved.

[0049] In an embodiment, referring to Figure 9 , the expansion mechanism 50 further comprises an expansion driving part 52, an expansion bottom plate 54 fixedly connected to the rack body 10 and an expansion movable plate 53 slidably connected to the expansion bottom plate 54. The upper die assembly 51 is arranged on one side of the expansion movable plate 53 close to the expansion bottom plate 54. The expansion bottom plate 54 is provided with a through hole 54A corresponding to the upper die assembly 51. The driving part of the expansion driving part 52 is drivingly connected to the expansion movable plate 53 to reciprocally move the upper die assembly 51 between the expansion state and the discharging state.

[0050] It can be understood that the expansion mechanism 50 includes an expansion base plate 54, an expansion movable plate 53 and an expansion drive 52. The expansion base plate 54 is fixedly connected to the rack body 10, a plurality of guide shafts are arranged between the expansion base plate 54 and the expansion movable plate 53, the expansion movable plate 53 is provided with a plurality of shaft sleeves corresponding to the plurality of guide shafts, the arrangement of the shaft sleeves and the guide shafts can further ensure the stability of the sliding connection operation of the expansion movable plate 53 and the expansion base plate 54, avoid jamming, and reduce the influence of partial load. The expansion drive 52 can be an electric cylinder, a pneumatic cylinder or the like. In order to save space, the expansion drive 52 can be arranged on the side of the expansion base plate 54 away from the expansion movable plate 53, and the driving part of the expansion drive 52 is connected to the expansion movable plate 53 through the expansion base plate 54, so as to drive the expansion movable plate 53 to move towards or away from the expansion base plate 54. The upper die assembly 51 is arranged on the side of the expansion movable plate 53 close to the expansion base plate 54, the expansion base plate 54 is provided with a through hole 54A corresponding to the upper die assembly 51, and the expansion drive 52 drives the expansion movable plate 53 to move, thereby driving the upper die assembly 51 arranged on the expansion movable plate 53 to reciprocate between the expansion state and the blanking state. Specifically, the upper die assembly 51 is driven by the expansion movable plate 53 to pass through the through hole 54A, the through hole 211A and the elastic sleeve 212 in sequence, and then the upper die assembly 51 is in the expansion state. The upper die assembly 51 is driven by the expansion movable plate 53 to pass through the through hole 211A, the through hole 54A and the initial position in sequence after being separated from the elastic sleeve 212 and the heat shrink element, and then the upper die assembly 51 is in the blanking state. The upper die assembly 51 can be arranged at the middle position of the expansion movable plate 53, or can be arranged at the two end positions. If arranged at the two end positions, in order to further reduce the influence of partial load, a counterweight is fixedly arranged on the other side of the expansion movable plate 53 where the upper die assembly 51 is arranged, so as to balance the weight of the upper die assembly 51.

[0051] In an embodiment, referring to Figure 9 , the expansion movable plate 53 is provided with a sleeving hole 53A, the upper die assembly 51 is fixedly arranged in the sleeving hole 53A, the upper die assembly 51 further includes an upper die outer sleeve 512 fixedly arranged in the sleeving hole 53A and an upper die inner sleeve 513 fixedly arranged in the upper die outer sleeve 512, and the expansion rod 511 is connected to one side of the upper die inner sleeve 513 close to the expansion base plate 54.

[0052] It can be understood that the expansion movable plate 53 is provided with a sleeving hole 53A, which can facilitate replacement of the upper die assembly 51. The sleeving hole 53A is arranged at the end of the expansion movable plate 53, and the sleeving hole 53A has a supporting part and a moving-out part arranged in communication. The upper die assembly 51 is fixedly arranged in the supporting part by bolts, screws or the like. When it is necessary to replace the upper die assembly 51, the expansion movable plate 53 is moved out through the moving-out part. Further, the arrangement of the upper die outer sleeve 512 and the upper die inner sleeve 513 can facilitate replacement of the expansion rod 511 to match different types of heat shrink elements. In an embodiment, referring toFigure 6 The rotating mechanism 20 further comprises a rotating driving member 22, a column 23, and a plurality of rotating shafts 24 fixed to the column 23, the number of the rotating shafts 24 corresponding to the number of the workstations, the rotating shafts 24 being evenly distributed around the column 23, and the plurality of lower mold assemblies 21 being respectively fixed to the rotating shafts 24. One end of the column 23 is connected to a driving part of the rotating driving member 22, and the other end of the column 23 is rotationally connected to the rack body 10. The rotating driving member 22 drives the column 23 to move intermittently, so that the plurality of lower mold assemblies 21 intermittently pass through the feeding workstation 201, the heating workstation 202, the cooling workstation 203, and the discharging workstation 204.

[0053] It can be understood that the plurality of rotating shafts 24 can realize the efficient production process of the plurality of lower mold assemblies 21 simultaneously processing different processes. For example, four rotating shafts 24 are provided, which are a first rotating shaft, a second rotating shaft, a third rotating shaft, and a fourth rotating shaft. The first rotating shaft is at the feeding workstation, and the feeding heat-shrinkable member to be expanded is placed thereon. The second rotating shaft is at the heating workstation, and the heat-shrinkable member to be expanded is heated thereon. The third rotating shaft is at the cooling workstation, and the heated heat-shrinkable member is expanded and cooled thereon. The fourth rotating shaft is at the discharging workstation, and the expanded heat-shrinkable member is discharged therefrom. In this way, the lower mold assemblies 21 on each blade perform different tasks. This design enables each workstation to be fully utilized without idle time, thereby maximizing production efficiency. Of course, the number of rotating shafts 24 can also be set to 3, 6, 9, etc. multiples of 3. At this time, the feeding workstation 201 and the discharging workstation 204 are the same position. The number of rotating shafts 24 can also be set to 4, 8, 12, 16, etc. multiples of 4. At this time, the number of heating mechanisms 30, cooling mechanisms 40, and expansion mechanisms 50 matches the number of workstations and rotating shafts. Of course, a plurality of lower mold assemblies 21 can also be provided under each rotating shaft 24, such as two, three, etc. When four or more lower mold assemblies 21 are provided, the expansion rod 511 of the lower mold assembly 21 has a large resistance when it is separated from the elastic sleeve 212 and the heat-shrinkable member, and the discharging process becomes extremely difficult. The rotating driving member 22 can be a divider. The rotating driving member 22 drives the column 23 to rotate intermittently, and further drives the plurality of rotating shafts 24 and the lower mold assemblies 21 provided thereunder to rotate in a predetermined order and time interval, so that the lower mold assemblies 21 pass through each workstation, such as the feeding workstation 201, the heating workstation 202, the cooling workstation 203, and the discharging workstation 204 in turn. Alternatively, the lower mold assemblies 21 can pass through the feeding workstation, the first heating workstation, the second heating workstation, the cooling workstation, and the discharging workstation in turn. Passing through two heating workstations can make the heat-shrinkable member heat and soften more efficiently, and is more conducive to the next expansion process. The sequence and number of workstations passed through by the lower mold assemblies 21 can be determined according to actual conditions, and are not limited herein.

[0054] It can be understood that in order to adapt to the expansion of different shapes of heat shrink parts, the lower die assembly 21 is matched with the upper die assembly 51, the lower die 211 includes a lower die plate fixedly connected with the rotating shaft 24, a lower die outer sleeve fixedly arranged on the lower die plate, and a lower die inner sleeve fixedly arranged on the lower die outer sleeve, and the lower die inner sleeve is provided with a through hole 211A.

[0055] In an embodiment, referring to Figure 7 , the heating mechanism 30 includes a first lifting seat body 31 fixedly connected with the rack body 10, a first lifting support 32 slidingly connected with the first lifting seat body 31, and a first driving member 33, the first lifting support 32 is provided with the heating part 34, and the driving part of the first driving member 33 is drivingly connected with the first lifting support 32, so that the heating part 34 reciprocates between the heating position 301 and the recovery position 302.

[0056] It can be understood that the first lifting support 32 and the first lifting seat body 31 can be connected by a sliding connection mode of a sliding rail and a sliding block, the first driving member 33 realizes the up-down sliding of the first lifting support 32 on the first lifting seat body 31 by a chain wheel transmission mode, so as to realize that the heating part 34 approaches the lower die assembly 21 to heat the heat shrink part, or the heating part 34 moves away from the lower die assembly 21 to return to the initial position. One heating part can be arranged on the first lifting support 32, or two heating parts can be arranged, so as to form one heating station 202 or two heating stations 202, that is, the number of heating parts is consistent with the number of heating stations. The number of heating parts is determined according to actual conditions, which is not limited here. The first driving member 33 can be a driving structure such as a cylinder or a motor, which is not limited here.

[0057] In an embodiment, referring to Figure 7 , the heating part 34 is a heating cylinder, the heating cylinder includes a cylinder body, a heating rod extending into the inner cavity of the cylinder body, and a conical sleeve located at the opening of the cylinder body, the cylinder body is provided with a feeding port and a discharging port communicating with the inner cavity of the cylinder body, the feeding port is located at the position close to the bottom of the cylinder body, and the discharging port is located at the position close to the opening of the cylinder body.

[0058] It can be understood that the heating cylinder can be placed with heating medium such as silicone oil and glycerol, the heating rod extending into the inner cavity of the cylinder body directly contacts with the heating medium, which can improve the heating effect, the heating rod can be spirally wound in the inner cavity of the cylinder body, or can be vertically and parallelly arranged in the inner cavity of the cylinder body, and the arrangement mode of the heating rod can be determined according to actual conditions, which is not limited here. The arrangement of the conical sleeve can reduce the overflow and splashing of the heating medium.

[0059] In an embodiment, referring to Figure 8The cooling mechanism 40 includes a second lifting seat body 41 fixedly connected to the rack body 10, a second lifting support 42 slidably connected to the second lifting seat body 41, and a second driving member 43. The second lifting support 42 is provided with the cooling member 44. The driving part of the second driving member 43 is drivingly connected to the second lifting support 42, so that the cooling member 44 reciprocally moves between the cooling position 401 and the return position 402.

[0060] It can be understood that the second lifting support 42 and the second lifting seat body 41 can be connected by a sliding connection mode of a sliding rail and a sliding block. The second driving member 43 realizes the up-and-down sliding of the second lifting support 42 on the second lifting seat body 41 by a chain wheel transmission mode, so as to realize that the cooling member 44 approaches the lower mold assembly 21 to cool the heat shrink member, or the cooling member 44 moves away from the lower mold assembly 21 to return to the initial position. The first driving member 33 can be a driving structure such as a cylinder or a motor, which is not limited here. The cooling member 44 can be a cooling cylinder. The cooling cylinder includes a cylinder body, a conical sleeve at an opening of the cylinder body, an inlet and an outlet communicating with an inner cavity of the cylinder body, the inlet being located at a position close to the bottom of the cylinder body, and the outlet being located at a position close to the opening of the cylinder body. A cooling medium is placed in the cylinder body, and the cooling medium can be water.

[0061] In an embodiment, referring to Figure 10 The heat shrink member expansion device 100 further includes a positioning mechanism 60 located between the expansion mechanism 50 and the cooling position 401 of the cooling mechanism 40. The positioning mechanism 60 includes a positioning seat 61 provided on the rack body 10, a positioning cylinder 62 provided on the positioning seat 61, and a positioning block 63 connected to the output end of the positioning cylinder 62. The lower mold 211 of the lower mold assembly 21 is provided with a positioning groove 211B corresponding to the positioning block 63.

[0062] It can be understood that when the upper mold assembly 51 moves downward relative to the lower mold assembly 21, the positioning cylinder 62 drives the positioning block 63 to extend and insert into the positioning groove 211B, so as to ensure that the upper mold assembly 51 and the lower mold assembly 21 can be matched and accurately positioned. When expanding, the expansion rod 511 of the upper mold assembly 51 is pressed downward, which is easy to cause the rotary shaft 24 to be bent. The positioning block 63 can also play a supporting role to avoid the rotary shaft 24 being bent.

[0063] In an embodiment, referring to Figure 11 The heat shrink member expansion device 100 further includes a supporting mechanism 70 arranged adjacent to the rotating mechanism 20. The supporting mechanism 70 includes a supporting seat 71 provided on the rack body 10, a supporting cylinder 72 provided on the supporting seat 71, and a supporting rod 73 connected to the output end of the supporting cylinder 72. The supporting rod 73 supports the lower mold 211.

[0064] It can be understood that the supporting mechanism 70 is arranged adjacent to the rotating mechanism 20, can be arranged adjacent to other stations except the cooling station 203, the supporting cylinder 72 is started after the rotating driving member 24 runs for a certain angle, the supporting cylinder 72 pushes the supporting rod 73 to extend and abut against the lower die 211, and the cooperation precision of the upper die assembly 51 and the lower die assembly 21 is ensured. Taking four rotating shafts 24 as an example, the rotating driving member 22 moves an angle of 90 degrees each time, the rotating driving member 24 runs 90 degrees to a certain station, the supporting cylinder 72 pushes the supporting rod 73 to extend and abut against the lower die 211, the lower die assembly 21 completes a corresponding working procedure on the corresponding station, the supporting cylinder 72 is retracted, the supporting rod 73 is retracted, the rotating driving member 24 runs 90 degrees to the next station again, and the circulation is realized.

[0065] In an embodiment, referring to Figure 4 , the heat shrinkage member expansion device 100 further comprises an air extraction mechanism 80 arranged on the rack body 10, and the air extraction mechanism 80 is arranged adjacent to the heating mechanism 30 to remove the heating medium dispersed in the air and emitted by the heating member 34. It can be understood that the air extraction mechanism 80 can be a fan, a blower, a suction pump or the like.

[0066] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made under the inventive concept of the present application, and directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A heat-shrink member expanding apparatus characterized by comprising: The utility model relates to a kind of hot shrinkable sleeve expansion machine, including: Frame body; Rotary mechanism, be located in the frame body, including lower mould component, the lower mould component includes lower mould with through hole and the elastic sleeve of being located in the lower mould, the elastic sleeve outside sleeve the heat shrinkable component, the lower mould component rotates through feeding station, heating station, cooling station and discharging station; Heating mechanism, be located in the frame body, including heating the heating element of heat shrinkable component, the heating element is located in the lower mould component heating station below, including the heating position close to the lower mould component and the recovery position away from the lower mould component; Cooling mechanism, be located in the frame body, including cooling the cooling element of heat shrinkable component, the cooling element is located in the lower mould component cooling station below, including the cooling position close to the lower mould component and the return position away from the lower mould component; Expansion mechanism, be located in the frame body, be located in the upper side of the lower mould component relative to the cooling mechanism, including upper mould component, the upper mould component includes expansion rod, the upper mould component has expansion state and discharging state, when the lower mould component is in cooling station, the upper mould component is relatively lowered to the lower mould component, to make the expansion rod pass through the through hole and enter the elastic sleeve expansion heat shrinkable component, the upper mould component is in expansion state;The upper mould component is relatively moved to the lower mould component, to make the expansion rod separate from heat shrinkable component, the upper mould component is in discharging state.

2. The heat-shrink member expanding apparatus according to claim 1, wherein The expansion mechanism further includes an expansion drive, an expansion bottom plate fixedly connected to the frame body, and an expansion movable plate slidingly connected to the expansion bottom plate. The upper mold component is arranged on one side of the expansion movable plate close to the expansion bottom plate. The expansion bottom plate is provided with a through hole corresponding to the upper mold component. The driving part of the expansion drive is drivingly connected to the expansion movable plate to reciprocally move the upper mold component between the expansion state and the discharging state.

3. The heat shrink member expanding apparatus according to claim 2, wherein The expansion movable plate is provided with a sleeving hole. The upper mold component is fixedly arranged in the sleeving hole. The upper mold component further includes an upper mold outer sleeve fixedly arranged in the sleeving hole and an upper mold inner sleeve fixedly arranged in the upper mold outer sleeve. The expansion rod is connected to one side of the upper mold inner sleeve close to the expansion bottom plate.

4. The heat-shrink member expanding apparatus according to claim 1, wherein The rotary mechanism further includes a rotary drive, a stand, and a plurality of rotary shafts fixedly arranged on the stand. The number of rotary shafts corresponds to the number of stations. The plurality of rotary shafts are uniformly distributed around the stand. The plurality of lower mold components are respectively fixedly arranged on the plurality of rotary shafts. One end of the stand is connected to the driving part of the rotary drive. The other end of the stand is rotationally connected to the frame body. The rotary drive intermittently drives the stand to move, so that the plurality of lower mold components intermittently pass through the feeding station, the heating station, the cooling station, and the discharging station.

5. The heat-shrink member expanding apparatus according to claim 1, wherein The heating mechanism includes a first lifting seat fixedly connected to the frame body, a first lifting support slidingly connected to the first lifting seat, and a first drive. The first lifting support is provided with the heating element. The driving part of the first drive is drivingly connected to the first lifting support to reciprocally move the heating element between the heating position and the recovery position.

6. The heat-shrink member expanding apparatus according to claim 5, wherein The heating member is a heating cylinder, which comprises a cylinder body, a heating rod extending into the inner cavity of the cylinder body, and a conical sleeve located at the opening of the cylinder body.

7. The heat-shrink member expanding apparatus according to claim 1, wherein The cooling mechanism comprises a second lifting seat body fixedly connected to the rack body, a second lifting bracket slidingly connected to the second lifting seat body, and a second driving member, the second lifting bracket is provided with the cooling member, and the driving part of the second driving member is drivingly connected to the second lifting bracket, so that the cooling member reciprocates between the cooling position and the return position.

8. The heat-shrink member expanding apparatus according to any one of claims 1 to 7, characterized by The heat shrink member expansion device further comprises a positioning mechanism located between the expansion mechanism and the cooling position of the cooling mechanism, the positioning mechanism comprises a positioning seat provided on the rack body, a positioning cylinder provided on the positioning seat, and a positioning block connected to the output end of the positioning cylinder, and the lower die of the lower die assembly is provided with a positioning groove corresponding to the positioning block.

9. The heat-shrink member expanding apparatus according to any one of claims 1 to 7, wherein The heat shrink member expansion device further comprises a supporting mechanism adjacent to the rotating mechanism, the supporting mechanism comprises a supporting seat provided on the rack body, a supporting cylinder provided on the supporting seat, and a supporting rod connected to the output end of the supporting cylinder, and the supporting rod supports the lower die.

10. The heat-shrink member expanding apparatus according to any one of claims 1 to 7, wherein The heat shrink member expansion device further comprises an air extraction mechanism provided on the rack body, and the air extraction mechanism is adjacent to the heating mechanism. Alternatively, the expansion rod is provided with an avoiding groove corresponding to the elastic sleeve in the axial direction.

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