Pusher device and dilating apparatus

Abstract

The present application relates to the field of mechanized pushing technology, in particular to a pushing device and an expanding device. The expanding device has a plurality of expansion fingers capable of forming an expansion channel. The pushing device comprises a frame body and a pushing mechanism arranged on the frame body. The pushing mechanism is provided with a pushing channel and a pushing head movably arranged in the pushing channel. The pushing head comprises a first pushing part and a second pushing part. The first pushing part is arranged on the periphery of the second pushing part. The first pushing part is used to push a support tube into the expansion channel. The second pushing part is used to push the support tube and the cold shrink sleeve away from the expansion fingers. In the process of pushing away, the second pushing part can ensure that the end of the cold shrink sleeve is not stretched and thus does not cover the end of the support tube. This improves the success rate of separating the cold shrink sleeve and the support tube from the expansion mechanism, reduces the scrap rate, and improves the expansion yield.

Description

Technical Field

[0001] This invention relates to the field of mechanized feeding technology, and in particular to a feeding device and an expansion device. Background Technology

[0002] Cable accessories are widely used in industrial production. Some tubing is elastic and deformable, such as cold-shrinkable finger sleeves. Cold-shrinkable finger sleeves are irregularly shaped cylinders with a large end and multiple small ends. When expanding the large end of the cold-shrinkable finger sleeve, a spring-like tubular support tube needs to be placed inside the expanded sleeve. After the support tube is pushed into the expanded cold-shrinkable finger sleeve, both the support tube and the expansion machine need to be pushed out together.

[0003] In related technologies, after the pusher structure pushes the support tube into the cold shrink finger sleeve, the end of the support tube away from the pusher rod will push against the transition connection between the large end and the small end. Through the pushing resistance between the end of the support tube and the transition connection, the support tube and the cold shrink finger sleeve are pushed away from the expander at the same time, realizing the assembly and unloading of the cold shrink finger sleeve and the support tube.

[0004] The problem is that when the cold shrink finger sleeve is in the expanded state, it will be subjected to the expansion support force along its radial direction by the expansion machine, which will increase the static friction force pushed along its axial direction. On this basis, the above-mentioned material pushing method will cause the cold shrink finger sleeve to be stretched along the axial direction, thereby covering the support tube as a whole. As a result, the end of the cold shrink finger sleeve will not be supported by the support tube and will deform, which will easily damage the large end structure of the cold shrink finger sleeve and result in a high expansion failure rate. Summary of the Invention

[0005] The main objective of this invention is to provide a feeding device that addresses the technical problem of low expansion yield caused by the stretching deformation of the cold-shrink finger sleeve during the feeding process of existing feeding mechanisms.

[0006] To achieve the above objectives, the present invention proposes a pushing device applied to an expansion device, the expansion device comprising a plurality of expansion fingers, the plurality of expansion fingers being used to expand a cold-shrink finger sleeve and forming an expansion channel, the pushing device comprising:

[0007] Frame; and

[0008] A pushing mechanism is provided on the frame. The pushing mechanism has a pushing channel and a pushing head that moves through the pushing channel. The pushing head includes a first pushing part and a second pushing part, and the second pushing part is provided on the periphery of the first pushing part.

[0009] The pushing mechanism has a first position and a second position that can move along the pushing channel;

[0010] At the first position, the first pusher pushes the support tube into the expansion channel;

[0011] In the second position, the first pusher and the second pusher respectively push the support tube and the cold shrink finger sleeve to disengage from the multiple expansion fingers.

[0012] In one embodiment of the present invention, the first pushing part and the second pushing part are detachably connected;

[0013] And / or, the second pusher portion protrudes from the periphery of the first pusher portion along the pushing direction.

[0014] In one embodiment of the present invention, the edge of the first pusher is provided with a plurality of clearance grooves, the plurality of clearance grooves are spaced apart, and one clearance groove is used to avoid one of the expansion fingers.

[0015] In one embodiment of the present invention, the second pushing part is provided as a plurality of pushing fingers, and the plurality of pushing fingers are arranged at intervals around the edge of the first pushing part;

[0016] At least one push finger is provided between two adjacent avoidance slots.

[0017] In one embodiment of the present invention, the feeding channel is provided with at least one detection hole communicating with the feeding channel;

[0018] The feeding mechanism includes at least one detection element, which is located on the outside of the feeding channel and is configured corresponding to the detection hole.

[0019] In one embodiment of the present invention, the frame is provided with a lifting assembly, and the pushing mechanism includes:

[0020] A carrier plate, which is disposed on the lifting assembly;

[0021] A feeding assembly, wherein the feeding assembly is disposed on the carrier plate and the feeding assembly is provided with the feeding channel; and

[0022] A drive assembly is disposed on the carrier plate and located at one end of the pusher channel. The pusher head is connected to the output shaft of the drive assembly, and the drive assembly drives the pusher head to reciprocate within the pusher channel.

[0023] In one embodiment of the present invention, the pushing assembly includes a substrate and two limiting plates, the two limiting plates being spaced apart from the substrate and surrounding the substrate to form the pushing channel;

[0024] The drive assembly includes a support rod and a drive component. The support rod is disposed on the carrier plate and located at one end of the pusher channel. The drive component is fixed to the carrier plate, and the pusher head is connected to the output shaft of the drive component.

[0025] In one embodiment of the present invention, the pushing assembly further includes a transition plate, the transition plate being obliquely connected to one of the limiting plates, and the transition plate extending obliquely toward the side of the limiting plate opposite to the other limiting plate.

[0026] In one embodiment of the present invention, the feeding mechanism further includes a guide component, one end of which is detachably connected to the feeding head, and the other end of which is slidably connected to the carrier plate.

[0027] The present invention also provides an expansion device, the expansion device comprising:

[0028] frame;

[0029] The material pushing mechanism described above is mounted on the frame via a frame body; and

[0030] An expansion mechanism is provided on the frame and together with the pushing mechanism. The expansion mechanism has multiple expansion fingers on the side opposite to the pushing mechanism.

[0031] The pushing device of this invention is used in an expansion device, which includes multiple expansion fingers for expanding cold-shrink finger sleeves and forming expansion channels. The pushing device includes a frame and a pushing mechanism mounted on the frame. The pushing mechanism has a pushing channel and a pushing head that moves within the pushing channel. The pushing head includes a first pushing part and a second pushing part, with the first pushing part located around the periphery of the second pushing part. The pushing mechanism has a first position and a second position that move along the pushing channel. In the first position, the first pushing part pushes a support tube into the expansion channel; in the second position, the first and second pushing parts respectively push against the support tube and the cold-shrink finger sleeve, causing them to simultaneously detach from the multiple expansion fingers. During the pushing and detaching process, the second pushing part ensures that the end of the cold-shrink finger sleeve is not stretched or deformed and does not cover the end of the support tube, thus improving the yield of the expanded product. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the feeding device of the present invention;

[0034] Figure 2 This is a schematic diagram of the assembly structure of the drive component and the pusher head according to an embodiment of the pusher device of the present invention;

[0035] Figure 3 This is a schematic diagram of the front view of the pusher head according to another embodiment of the pusher device of the present invention;

[0036] Figure 4 This is a three-dimensional structural diagram of the pusher head according to another embodiment of the pusher device of the present invention;

[0037] Figure 5 This is a schematic diagram of the structure of a partial pushing mechanism in another embodiment of the pushing device of the present invention;

[0038] Figure 6 This is a schematic diagram of the structure of a feeding component in another embodiment of the feeding device of the present invention;

[0039] Figure 7 This is a schematic diagram of the structure of a partial pushing mechanism in another embodiment of the pushing device of the present invention;

[0040] Figure 8 This is a schematic diagram of the structure of a side limiting plate in another embodiment of the feeding device of the present invention;

[0041] Figure 9 This is a schematic diagram of the structure of another limiting plate in another embodiment of the feeding device of the present invention;

[0042] Figure 10 This is a schematic diagram of the overall structure of an embodiment of the expansion device of the present invention.

[0043] Explanation of icon numbers:

[0044] label name label name label name 100 Pushing device 3 Material pushing mechanism 50 Pusher assembly 10 Frame 30A Material pushing channel 51 substrate 11 Lifting components 30 Push head 52 Limit plate 70 Guide components 31 First Material Pushing Section 52A Detection hole 71 Guide rod 32 Second Pushing Section 53 transition plate 72 First fixed part 31A clearance slot 54 Test pieces 73 Second fixing part 321 Promote 60 Driver components 80 Adjustment components 40 carrier board 61 support rod 81 Adjustable seat 41 slide rail 62 Drive components 82 support base 42 slider 200 Expansion equipment 83 Adjusting rod 20 frame 22 Feeding mechanism 90 Cold shrink finger cot 21 Expansion mechanism 23 Sending agency

[0045] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0047] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0050] Cable accessories are widely used in industrial production. Some tubing is elastic and deformable, such as cold-shrinkable finger sleeves. Cold-shrinkable finger sleeves are irregularly shaped cylinders with a large end and multiple small ends. When expanding the large end of the cold-shrinkable finger sleeve, a spring-like tubular support tube needs to be placed inside the expanded sleeve. After the support tube is pushed into the expanded cold-shrinkable finger sleeve, both the support tube and the expansion machine need to be pushed out together.

[0051] In related technologies, after the pusher structure pushes the support tube into the cold shrink finger sleeve, the end of the support tube away from the pusher rod will push against the transition connection between the large end and the small end. Through the pushing resistance between the end of the support tube and the transition connection, the support tube and the cold shrink finger sleeve are pushed away from the expander at the same time, so as to realize the removal of the cold shrink finger sleeve from the machine.

[0052] The problem is that when the cold shrink finger sleeve is in the expanded state, it is subjected to the radial expansion support force of the expander, which increases the static friction force pushing it axially. On this basis, the above-mentioned removal method will cause the cold shrink finger sleeve to be stretched irregularly along the axial direction, damaging the large end structure of the cold shrink finger sleeve. The deformation of the end of the support tube will cause it to completely cover the support tube, and it is difficult to remove the support tube after the end shrinks. In severe cases, the cold shrink finger sleeve will be scrapped, and the expansion failure rate is high.

[0053] The present invention proposes a feeding device 100, which is applied to an expansion device 200. The expansion device 200 includes a plurality of expansion fingers, which are used to expand the cold shrink finger sleeve 90 and form an expansion channel.

[0054] Reference Figures 1 to 10 , Figure 1 This is a schematic diagram of the overall structure of an embodiment of the feeding device 100 of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the drive assembly 60 and the pusher head 30 in one embodiment of the pusher device 100 of the present invention. Figure 3 This is a schematic diagram of the front view of the pusher head 30 according to another embodiment of the pusher device 100 of the present invention; Figure 4 This is a three-dimensional structural diagram of the pusher head 30 in another embodiment of the pusher device 100 of the present invention; Figure 5 This is a schematic diagram of the structure of a partial pushing mechanism 3 in another embodiment of the pushing device 100 of the present invention; Figure 6 This is a schematic diagram of the structure of the feeding component 50 in another embodiment of the feeding device 100 of the present invention; Figure 7 This is a schematic diagram of the structure of a partial pushing mechanism 3 in another embodiment of the pushing device 100 of the present invention; Figure 8 This is a schematic diagram of the structure of a side limiting plate 52 in another embodiment of the feeding device 100 of the present invention; Figure 9 This is a schematic diagram of the structure of the limiting plate 52 on another side of another embodiment of the feeding device 100 of the present invention; Figure 10 This is a schematic diagram of the overall structure of an embodiment of the expansion device 200 of the present invention.

[0055] In this embodiment of the invention, the pushing device 100 includes a frame 10 and a pushing mechanism 3, such as... Figure 1 Combination Figure 10 As shown, the pushing mechanism 3 is located on the frame 10. The pushing mechanism 3 has a pushing channel 30A and a pushing head 30 that moves through the pushing channel 30A. The pushing head 30 includes a first pushing part 31 and a second pushing part 32. The second pushing part 32 is located around the periphery of the first pushing part 31. The pushing mechanism 3 has a first position and a second position that move along the pushing channel 30A. In the first position, the first pushing part 31 pushes the support tube into the expansion channel. In the second position, the first pushing part 31 and the second pushing part 32 push the support tube and the cold shrink finger sleeve 90 respectively, and simultaneously disengage from multiple expansion fingers.

[0056] The feeding device 100 of this invention is used in an expansion device 200. The expansion device 200 includes a plurality of expansion fingers for expanding a cold-shrink finger sleeve 90 and forming expansion channels. The feeding device 100 includes a frame 10 and a feeding mechanism 3 disposed on the frame 10. The feeding mechanism 3 has a feeding channel 30A and a feeding head 30 that moves through the feeding channel 30A. The feeding head 30 includes a first feeding part 31 and a second feeding part 32, with the first feeding part 31 disposed around the periphery of the second feeding part 32. The feeding mechanism 3 has a first position and a second position that move along the feeding channel 30A. In the first position, the first pusher 31 is used to push the support tube into the expansion channel; in the second position, the first pusher 31 and the second pusher 32 respectively push the support tube and the cold shrink finger sleeve 90 so that they can simultaneously detach from multiple expansion fingers. During the pushing and detaching process, the second pusher 32 can ensure that the end of the cold shrink finger sleeve 90 is not stretched and deformed, so that it will not cover the end of the support tube, thereby increasing the success rate of the cold shrink finger sleeve 90 and the support tube detaching from the expansion mechanism 21 and improving the expansion finished product yield.

[0057] Understandably, the expansion device 200 has an expansion mechanism 21, which includes an expansion disc, multiple expansion fingers movably mounted on the expansion disc, the extension direction of the expansion fingers being perpendicular to the plane of the expansion disc, and the multiple expansion fingers moving away from each other and opening up to form an expansion channel during expansion. The large end of the cold shrink finger sleeve 90 is fitted onto the multiple expansion fingers. The expansion disc has a through hole corresponding to the expansion channel, and the pusher head 30 of the pusher mechanism 3 passes through the through hole and enters the expansion channel.

[0058] The direction of material pushing is defined as the X-axis, the direction of gravity of the support tube is defined as the Z-axis, the material pushing channel 30A can limit the periphery of the support tube in the Y direction, the X-axis, Y-axis and Z-axis are perpendicular to each other and intersect at the origin O, and the three axes together with the origin O form a spatial rectangular coordinate system O-XYZ, and the following description of various embodiments is based on this coordinate system as the orientation standard.

[0059] Combined with reference Figures 2 to 4 As shown, in one embodiment of the present invention, the second pusher portion 32 protrudes from the periphery of the first pusher portion 31 along the pusher direction.

[0060] In this embodiment, the support tube is a spring-like tubular support structure located within the feeding channel. One end of the pushing channel 30A is directly opposite one end of the expansion channel. Under the push of the first pushing part 31, the support tube is pushed from the feeding channel toward the expansion channel. Since the cold shrinking finger sleeve 90 is flexible, when the cold shrinking finger sleeve 90 is pushed away from the expansion finger, the second pushing part 32 limits the cold shrinking finger sleeve 90, and the first pushing part 31 contacts and pushes against the support tube.

[0061] The first pusher section 31 is used to push the support tube. The second pusher section 32 is located around the periphery of the first pusher section 31, and the second pusher section 32 protrudes from the periphery of the first pusher section 31 along the pushing direction, which is parallel to the X-axis direction. The second pusher section 32 is used to push the large end of the cold shrink finger sleeve 90, which is in an expanded state.

[0062] During the pushing process of the support tube, the first pushing part 31 pushes one end of the support tube to push it into the expansion channel along the X-axis direction; after the support tube is pushed into the expansion channel, the end of the second pushing part 32 abuts against the edge of the large end of the cold shrink finger sleeve 90. Under the continuous pushing action, the two pushing parts of the pushing head 30 push the cold shrink finger sleeve 90 and the support tube at the same time, so as to avoid relative frictional displacement between the support tube and the cold shrink finger sleeve 90 in the X-axis direction, avoid abnormal deformation of the cold shrink finger sleeve 90, and improve the expansion yield.

[0063] Furthermore, the second pusher section 32 has a relief opening for each expansion finger to avoid the expansion finger and facilitate the pushing of the cold shrink finger sleeve 90.

[0064] In one embodiment of the present invention, the first pusher part 31 and the second pusher part 32 are detachably connected.

[0065] In this embodiment, the first pusher part 31 is a solid disc or a disc with a perforation. When the disc is assembled with the pusher mechanism 3, its thickness direction is parallel to the X-axis. The length direction of the second pusher part 32 is parallel to the X-axis. The second pusher part 32 protrudes from the surface of the disc facing the expanding finger, so that the second pusher part 32 pushes against the cold shrink finger sleeve 90, preventing the cold shrink finger sleeve 90 from being stretched along its own axial direction (i.e., the X-axis). The radial outer peripheral wall of the disc is provided with multiple fixing holes, and the second pusher part 32 is provided with multiple assembly holes. The first pusher part 31 and the second pusher part 32 are detachably assembled by external fasteners, which facilitates the replacement, addition, reduction, and matching of pusher heads 30 of different specifications.

[0066] Furthermore, the fasteners can be screws, bolts, etc. The radial outer peripheral wall of the disc can be provided with multiple fixing grooves, and the bottom wall of the fixing groove is provided with multiple fixing holes; the second pusher part 32 is provided with multiple assembly protrusions, which are engaged in the fixing grooves and then fixed by external fasteners, thereby improving the assembly strength of the first pusher part 31 and the second pusher part 32.

[0067] In one embodiment of the present invention, the edge of the first pusher 31 is provided with a plurality of clearance grooves 31A, the plurality of clearance grooves 31A are spaced apart, and one clearance groove 31A is used to avoid an expansion finger.

[0068] In this embodiment, the first pushing part 31 is used to push the support tube. The outer diameter of the support tube is slightly smaller than the inner diameter of the large end of the expanded cold shrink finger sleeve 90. The outer diameter of the disc is equal to or slightly larger than the outer diameter of the support tube. During the pushing process, the disc as a whole needs to enter the expansion channel. The disc has a relief groove 31A corresponding to multiple expansion fingers to improve the reliability of pushing the support tube and also to enable the support tube and the cold shrink finger sleeve 90 to be pushed out smoothly.

[0069] In one embodiment of the present invention, the second pusher 32 is provided with a plurality of push fingers 321, which are spaced apart around the edge of the first pusher 31; at least one push finger 321 is provided between two adjacent clearance grooves 31A.

[0070] In this embodiment, the second pushing part 32 is provided with multiple pushing fingers 321, which can increase the force points between the second pushing part 32 and the end of the cold shrink finger sleeve 90, and increase the contact area between the second pushing part 32 and the cold shrink finger sleeve 90; the number of pushing fingers 321 can also be increased or decreased as needed, which improves the flexibility of the second pushing part 32. The intermittent installation of multiple pushing fingers 321 can also effectively avoid multiple expansion fingers in the expansion stage, and cooperate with the first pushing part 31 to push the material.

[0071] Furthermore, the bottom of the push channel 30A is provided with at least one clearance channel corresponding to at least one push finger 321. The clearance channel extends through the bottom of the clearance channel along the X-axis direction, so that at least one push finger 321 of the second push part 32 located at the bottom of the disc can extend into the clearance channel to exert force and push against the end of the cold shrink finger sleeve 90 located at the lowest position of the Z-axis, thereby improving the uniformity of force between the push finger 321 and the edge of the cold shrink finger sleeve 90.

[0072] Furthermore, the end of the push finger 321 away from the first push part 31 is recessed with a locking groove, and the opening of the locking groove is parallel to the push direction; wherein, the locking groove is used to lock and limit one end edge of the cold shrink finger sleeve 90, and the width of the locking groove is greater than the thickness of the cold shrink finger sleeve 90, so that it can match cold shrink finger sleeves 90 of different thicknesses and improve the versatility of the push head 30.

[0073] It is understandable that the first pusher section 31 and the second pusher section 32 can be either metal parts or non-metal parts, such as plastic parts, depending on the need.

[0074] Combined with reference Figure 7 As shown, in one embodiment of the present invention, the feeding channel 30A is provided with at least one detection hole 52A communicating with the feeding channel 30A; the feeding mechanism 3 includes at least one detection element 54, which is disposed on the feeding assembly 50 and located outside the feeding channel 30A, and is provided corresponding to the detection hole 52A.

[0075] In this embodiment, the detection hole 52A is configured to avoid the detection element 54 from detecting whether there is a support tube in the feeding channel 30A. When multiple detection holes 52A are configured, the multiple detection holes 52A are spaced apart along the X-axis to detect multiple positions of the feeding channel 30A along its length extension direction, thereby improving the reliability of the detection results.

[0076] Combined with reference Figure 5 and Figure 6 As shown, in one embodiment of the present invention, a lifting assembly 11 is provided on the frame 10, and the pushing mechanism 3 includes a carrier plate 40, a pushing assembly 50, and a driving assembly 60. The carrier plate 40 is disposed on the lifting assembly 11, and the pushing assembly 50 and the driving assembly 60 are disposed on the carrier plate 40. The pushing assembly 50 is provided with a pushing channel 30A. The driving assembly 60 is located at one end of the pushing channel 30A, and the pushing head 30 is connected to the output shaft of the driving assembly 60. The driving assembly 60 drives the pushing head 30 to reciprocate within the pushing channel 30A.

[0077] In this embodiment, the lifting component 11 is used to adjust the height of the pushing mechanism 3 to match the height of the supporting expansion channel. The pushing component 50 and the carrier plate 40 are detachably connected via the lifting component 11. The pushing component 50 is provided with a pushing channel 30A, the detection element 54 is provided on the pushing component 50, and the output end of the drive component 60 is connected to the pushing head 30. The drive component 60 drives the pushing head 30 to reciprocate within the pushing channel 30A to push and return to its original position, preparing for the next pushing operation.

[0078] Combination Figure 6 As shown, in one embodiment of the present invention, the feeding assembly 50 includes a base plate 51 and two limiting plates 52. The two limiting plates 52 are spaced apart on the base plate 51 and together with the base plate 51 form a feeding channel 30A. The driving assembly 60 includes a support rod 61 and a driving member 62. The support rod 61 is disposed on the carrier plate 40 and located at one end of the feeding channel 30A. The driving member 62 is fixed to the carrier plate 40, and the feeding head 30 is connected to the output shaft of the driving member 62.

[0079] In this embodiment, two limiting plates 52 are spaced apart on the substrate 51 along the Y-axis and together with the substrate 51 form a pushing channel 30A. At least one limiting plate 52 is slidably connected to the substrate 51, and the sliding direction of the limiting plate 52 is perpendicular to the pushing direction. The relative distance between the two limiting plates 52 along the Y-axis can be adjusted to adjust the width of the pushing channel 30A, accommodating the pushing of support tubes of different diameters.

[0080] The driving component 62 can be a cylinder or an electric actuator, and the pushing direction is set along the X-axis. The support rod 61 is set on the carrier plate 40 and is located on the side of the two limiting plates 52 away from the expansion mechanism 21. The setting of the support rod 61 improves the stability of the driving component 62 and improves the smoothness of the pushing process.

[0081] Combined with reference Figure 8 As shown, it can be understood that the clearance channel is provided on the substrate 51 and extends through the substrate 51 along the X-axis direction. The pushing mechanism 3 also includes an adjustment assembly 80, which includes an adjustment seat 81, a support seat 82, and an adjustment rod 83. The adjustment seat 81 is provided on a limiting plate 52, the support seat 82 is provided on the substrate 51, and the adjustment rod 83 passes through the support seat 82 and is connected at one end to the adjustment seat 81. The adjustment rod 83 extends along the Y-axis direction and can be moved and adjusted along the Y-axis to adjust the relative distance between the limiting plates 52 along the Y-axis direction.

[0082] Combined with reference Figure 6 and Figure 8 As shown, in one embodiment of the present invention, the feeding assembly 50 further includes a transition plate 53, which is obliquely connected to a limiting plate 52 and extends obliquely toward the side of the limiting plate 52 that is away from the other limiting plate 52.

[0083] In this embodiment, the transition plate 53 facilitates the inclined transition of the support tube during the feeding process and allows it to roll into the push channel 30A. The transition plate 53 is connected to a limiting plate 52 on the side opposite to the base plate 51 and is inclined in a flared manner along the Y-axis direction, serving as a rolling ramp for lifting the support tube and facilitating automated feeding of the support tube.

[0084] Furthermore, the transition plate 53 and the detection element 54 can be located on the limiting plate 52 on the same side of the pushing channel 30A, or the transition plate 53 can be located on one side of the limiting plate 52 and the detection element 54 can be located on the other side of the limiting plate 52. The setting position of the detection hole 52A corresponds to the setting position of the detection element 54.

[0085] Combined with reference Figure 9 As shown, in one embodiment of the present invention, the feeding mechanism 3 further includes a guide component 70, one end of which is detachably connected to the feeding head 30, and the other end of which is slidably connected to the carrier plate 40.

[0086] In this embodiment, the guide assembly 70 includes a guide rod 71 and a first fixing part 72 and a second fixing part 73 located at both ends of the guide rod 71. The first fixing part 72 is configured as a snap-fit ​​block, which is detachably connected and fixed to the disc of the first pusher part 31, facilitating the replacement of pusher heads 30 of different specifications and sizes. The second fixing part 73 can be configured as an I-shaped or T-shaped connecting block, and the snap-fit ​​block and the connecting block are respectively detachably connected to the guide rod 71 to replace the guide assembly 70 with a matching shape and height. The carrier plate 40 is provided with a slide rail 41, and the extension direction of the slide rail 41 is parallel to the extension direction of the pusher channel 30A. One end of the guide assembly 70 is slidably connected to the slide rail 41 on the carrier plate 40 to achieve sliding guidance and reduce friction, and the other end of the guide assembly 70 is connected to the pusher head 30 to support the pusher head 30 and improve the linearity and stability of the pusher head 30 during the pusher process.

[0087] Furthermore, the connecting block may be provided with a groove matching the slide rail 41 to achieve a sliding connection of the guide assembly 70, or a connecting slider 42 may be provided on one side of the connecting block, and the slider 42 may be slidably connected to the slide rail 41. The second fixing part 73 is detachably connected to the slider 42, which facilitates the replacement of different connecting blocks.

[0088] The present invention also proposes an expansion device 200, which includes a frame 20 and a pushing device 100. The specific structure of the pushing device 100 is as described in the above embodiments. Since the expansion device 200 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 described in detail here.

[0089] In this embodiment, the expansion device 200 further includes an automatic tube feeding mechanism 23 with a support tube, an automatic feeding mechanism 22 for the cold shrink finger sleeve 90, and an expansion mechanism 21. The expansion mechanism 21 has expansion fingers on its side facing away from the pushing mechanism 3. These expansion fingers have an expanded state and a closed state. When the expansion fingers are in the closed state, the cold shrink finger sleeve 90 is fitted onto multiple expansion fingers. The multiple expansion fingers unfold to form an expansion channel. The pushing mechanism 3 feeds the support tube into the expansion channel while the expansion fingers are in the expanded state, and simultaneously pushes the support tube and the cold shrink finger sleeve 90 away from the expansion fingers, completing the expansion. The above-mentioned mechanisms are compactly structured and rationally arranged to achieve automated expansion of the cold shrink finger sleeve 90.

[0090] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A feeding device, applied to an expansion device, characterized in that, The expansion device includes multiple expansion fingers, which are used to expand the cold shrink finger sleeve and form expansion channels. The pushing device includes: Frame; and A pushing mechanism is provided on the frame. The pushing mechanism has a pushing channel and a pushing head that moves through the pushing channel. The pushing head includes a first pushing part and a second pushing part. The second pushing part protrudes from the periphery of the first pushing part along the pushing direction. The edge of the first pushing part is provided with a plurality of clearance grooves. The plurality of clearance grooves are spaced apart. One clearance groove is used to avoid one of the expansion fingers. The pushing mechanism has a first position and a second position that can move along the pushing channel; At the first position, the first pusher pushes the support tube into the expansion channel; In the second position, the first pushing part pushes against one end of the support tube, and the end of the second pushing part abuts against the edge of the large end of the cold shrink finger sleeve. The support tube and the cold shrink finger sleeve simultaneously disengage from the multiple expansion fingers.

2. The feeding device as described in claim 1, characterized in that, The first pusher part and the second pusher part are detachably connected.

3. The feeding device as described in claim 1, characterized in that, The second pushing part is provided with a plurality of pushing fingers, which are spaced apart around the edge of the first pushing part; At least one push finger is provided between two adjacent avoidance slots.

4. The feeding device as described in claim 1, characterized in that, The feeding channel is provided with at least one detection hole that connects to the feeding channel; The feeding mechanism includes at least one detection element, which is located on the outside of the feeding channel and is correspondingly arranged with respect to the detection hole.

5. The feeding device as described in claim 1, characterized in that, The frame is equipped with a lifting assembly, and the pushing mechanism includes: A carrier plate, which is disposed on the lifting assembly; A feeding assembly, wherein the feeding assembly is disposed on the carrier plate and the feeding assembly is provided with the feeding channel; and A drive assembly is disposed on the carrier plate and located at one end of the pusher channel. The pusher head is connected to the output shaft of the drive assembly, and the drive assembly drives the pusher head to reciprocate within the pusher channel.

6. The feeding device as described in claim 5, characterized in that, The feeding assembly includes a base plate and two limiting plates, the two limiting plates being spaced apart on the base plate and forming the feeding channel with the base plate; The drive assembly includes a support rod and a drive component. The support rod is disposed on the carrier plate and located at one end of the pusher channel. The drive component is fixed to the carrier plate, and the pusher head is connected to the output shaft of the drive component.

7. The feeding device as described in claim 6, characterized in that, The feeding assembly also includes a transition plate, which is obliquely connected to one of the limiting plates and extends obliquely toward the side of the limiting plate opposite to the other limiting plate.

8. The feeding device as described in claim 5, characterized in that, The feeding mechanism also includes a guide component, one end of which is detachably connected to the feeding head, and the other end of which is slidably connected to the carrier plate.

9. An expansion device, characterized in that, The expansion device includes: frame; The pushing mechanism as described in any one of claims 1 to 8, wherein the pushing mechanism is mounted on the frame via a frame body; and An expansion mechanism is provided on the frame and together with the pushing mechanism. The expansion mechanism has multiple expansion fingers on the side opposite to the pushing mechanism.

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