A power cord stretching device resistant to twisting and bending

Abstract

The present invention provides a stretching device for a power cord resistant to twisting and bending, comprising: a support mechanism, a stretching mechanism, a fixing mechanism, a limiting mechanism and a feeding mechanism. The support mechanism includes a support base, and a pair of mounting grooves are formed on one side of the top of the support base. The stretching mechanism includes a sliding plate, and a pair of sliding blocks are installed at the bottom of the sliding plate. The sliding blocks can slide inside the mounting grooves. The inside of the mounting grooves are respectively connected with lead screws through bearings. The lead screws and the sliding blocks are engaged with each other. A first machine base is installed on the back side of the support base, and a first motor is installed on the top of the first machine base. One end of each lead screw is respectively connected with a rotating shaft in a transmission manner. A first synchronous pulley is installed on the outer side of each rotating shaft. A first synchronous belt is connected between the first synchronous pulleys. The output end of the first motor is in transmission connection with one of the rotating shafts. This stretching device can straighten the power cord, enabling the power cord to be fully stretched, so as to eliminate the problem that the lengths of the cut power cords are inconsistent due to the curling of the power cord.

Description

Technical Field

[0001] The present invention relates to the technical field of power cord production equipment, and in particular to a twisting and bending resistant power cord stretching device. Background Art

[0002] Power cables can be categorized by their purpose as AC (alternating current) or DC (direct current). AC cables typically carry higher-voltage alternating current (AC). Due to their higher voltage, these cables require standardized safety certification before they can be officially manufactured. DC cables, on the other hand, carry lower-voltage direct current (DC), so safety requirements are less stringent than those for AC cables.

[0003] The production process for power cord plugs requires stripping the sheath, visually separating the wires, stripping the insulation, twisting the wires, tinning, soldering the plug blades, and injection molding. During production, the power cords are often not fully stretched when they are guided into the cutting process, affecting the cutting process and resulting in varying lengths for each cut, impacting production quality. Summary of the invention

[0004] An embodiment of the present invention provides a twisting and bending resistant power cord stretching device, which eliminates the problem of different lengths of cut power cords due to curling of the power cord through the use of a stretching mechanism.

[0005] In view of the above problems, the technical solution proposed by the present invention is:

[0006] A twist-resistant and bend-resistant power cord stretching device, comprising:

[0007] A supporting mechanism, a stretching mechanism, a fixing mechanism, a limiting mechanism and a feeding mechanism, wherein the supporting mechanism includes a supporting base, a pair of mounting grooves are opened on one side of the top of the supporting base, the stretching mechanism includes a slide, and a pair of sliders are installed at the bottom of the slide, the sliders can slide inside the mounting grooves, the inside of the mounting grooves are connected with a lead screw through a bearing, the lead screw and the slider are engaged with each other, a first machine base is installed on the back side of the supporting base, and a first motor is installed on the top of the first machine base, one end of the lead screw is transmission-connected to a rotating shaft, a first synchronous wheel is installed on the outer side of the rotating shaft, a first synchronous belt is connected between the first synchronous wheels, the output end of the first motor is transmission-connected to one of the rotating shafts, the fixing mechanism is installed on the top of the slide, and the fixing mechanism can be fixed to one end of the power cord.

[0008] As a preferred technical solution of the present invention, the fixing mechanism includes a fixing sleeve installed on the top of the sliding plate. One side of the fixing sleeve is provided with a bottom plate. The top of the bottom plate is provided with a first adjustment groove, and a through hole is provided at the center of the bottom plate. Each side of the first adjustment groove is slidably connected with an adjustment block. The top of each adjustment block is provided with a clamping plate, and the top of each clamping plate is provided with an adjustment rod. The top of the bottom plate is movably connected with an adjustment plate. A slot is provided at the center of the adjustment plate, and a plurality of second adjustment grooves are provided on the top of the adjustment plate. The adjustment rod can slide inside the second adjustment groove.

[0009] As a preferred technical solution of the present invention, the first adjustment groove is a regular hexagon, the number of the second adjustment grooves is six, the clamping plate is an isosceles triangle, and the clamping plates can be mutually attached.

[0010] As a preferred technical solution of the present invention, a driven gear is installed on the outside of the adjustment plate, a second machine base is installed on the top of the fixing sleeve, and a second motor is installed on the top of the second machine base. The output end of the second motor is drivingly connected with a driving gear, and the driving gear and the driven gear are meshingly connected.

[0011] As a preferred technical solution of the present invention, the limiting mechanism includes a pair of support rods installed on the other side of the top of the support base. A chute is provided on each side of the pair of support rods close to each other. A limiting block is slidably connected inside the chute. A first limiting roller is connected between the support rods. The limiting blocks are connected with a second limiting roller through a bearing, and a limiting groove is provided at the top of the first limiting roller.

[0012] As a preferred technical solution of the present invention, threaded rods are installed inside the chutes. The limiting blocks are engaged with the threaded rods. The tops of the threaded rods are drivingly connected with connecting shafts. Second synchronous wheels are installed on the outside of the connecting shafts. A second synchronous belt is connected between the second synchronous wheels. The top of one of the connecting shafts is drivingly connected with a knob.

[0013] As a preferred technical solution of the present invention, a support frame is installed on the top of the support base between the sliding plate and the support rods, and a sleeve is installed on the top of the support frame.

[0014] As a preferred technical solution of the present invention, the feeding mechanism includes a pair of support columns arranged on one side of the support base. A pair of support columns are connected with an idler shaft through bearings on the sides close to each other, and a feeding roller is connected between the idler shafts.

[0015] As a preferred technical solution of the present invention, a third machine base is installed on the outer side of one of the pair of support columns, and a hydraulic rod is installed on the top of the third machine base, a rack is installed on the output end of the hydraulic rod, an idle gear is installed on the outer side of the idle shaft, and the rack can be engaged with the idle gear.

[0016] In another aspect, the present invention provides a method for stretching a twist-resistant power cord, comprising the following steps:

[0017] S1, installation: connect the feeding roller with the power cord tied to a pair of inert shafts, then pass one end of the power cord through between the first limiting roller and the second limiting roller, and make it located inside the limiting groove, then rotate the knob, under the action of the second synchronous wheel and the second synchronous belt, a pair of threaded rods will rotate synchronously, so that the limiting block moves down in the slide groove, and then the second limiting roller squeezes the top of the power cord, then pass one end of the power cord through the inside of the sleeve and put it into the through hole, and start the second motor, under the action of the driving gear and the driven gear, the adjustment plate can be rotated to make the adjustment rod slide in the second adjustment groove, because the adjustment rod is connected to the splint, and the adjustment block at the bottom of the splint can only slide in the first adjustment groove, so the splint can only slide along the edge of the first adjustment groove, so that the six groups of splints are close to each other to fix one end of the power cord;

[0018] S2, stretching: start the first motor to drive one of the rotating shafts to rotate, and under the drive of the first synchronous wheel and the first synchronous belt, the other rotating shaft rotates, thereby causing a pair of screws to rotate synchronously, so that the slider moves backward, thereby driving one end of the power cord to move. At the same time, start the hydraulic rod to make the rack engage with the idler gear, so that the feeding roller cannot rotate, and the power cord will be straightened so that the power cord can be fully stretched;

[0019] S3, cutting: Place the cutting tool on the side of the sleeve close to the fixing sleeve and cut the power cord from there. At this time, one end of the power cord will remain in the sleeve. The user can directly pull out one end of the power cord in the sleeve and put it into the through hole for the next fixation and stretching.

[0020] Compared with the prior art, the beneficial effects of the present invention are: starting the first motor to drive one of the rotating shafts to rotate, and under the drive of the first synchronous wheel and the first synchronous belt, the other rotating shaft rotates, thereby causing a pair of screws to rotate synchronously, so that the slider moves backward, and then drives one end of the power cord to move. At the same time, starting the hydraulic rod makes the rack engage with the inert gear, so that the feeding roller cannot rotate, and the power cord will be straightened so that the power cord can be fully stretched, thereby eliminating the problem of different lengths of the cut power cord due to the curling of the power cord.

[0021] The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the content of the specification. And in order to make the above and other objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are hereinafter specifically exemplified. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 1 is a first three-dimensional schematic diagram of a stretching device for a power cord resistant to twisting and bending disclosed in an embodiment of the present invention;

[0023] Figure 2 A stretching device for a power cord resistant to twisting and bending disclosed in an embodiment of the present invention Figure 1 is an enlarged schematic diagram of the structure at A in FIG. 2;

[0024] Figure 3 FIG. 3 is a second three-dimensional schematic diagram of a stretching device for a power cord resistant to twisting and bending disclosed in an embodiment of the present invention;

[0025] Figure 4 FIG. 4 is a partial exploded three-dimensional view of a fixing mechanism of a stretching device for a power cord resistant to twisting and bending disclosed in an embodiment of the present invention;

[0026] Figure 5 FIG. 5 is a method block diagram of a stretching device for a power cord resistant to twisting and bending disclosed in an embodiment of the present invention.

[0027] Reference numerals: 100, support mechanism; 1001, support base; 1002, installation groove; 1003, support frame; 1004, sleeve; 200, stretching mechanism; 2001, sliding plate; 2002, slider; 2003, lead screw; 2004, first machine base; 2005, first motor; 2006, rotating shaft; 2007, first synchronous pulley; 2008, first synchronous belt; 300, fixing mechanism; 3001, fixing sleeve; 3002, adjusting plate; 3003, second machine base; 3004, second motor; 3005, driving gear; 3006, driven gear; 3007, second adjusting groove; 3008, clamping plate; 3009, adjusting rod; 3010, adjusting block; 3011, bottom plate; 3012, first adjusting groove; 3013, through hole; 400, limiting mechanism; 4001, support rod; 4002, first limiting roller; 4003, limiting groove; 4004, sliding groove; 4005, second limiting roller; 4006, limiting block; 4007, threaded rod; 4008, second synchronous pulley; 4009, second synchronous belt; 4010, knob; 500, feeding mechanism; 5001, support column; 5002, feeding roller; 5003, idler shaft; 5004, idler gear; 5005, third machine base; 5006, hydraulic rod; 5007, rack. SPECIFIC EMBODIMENTS

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1

[0030] Refer to the attached Figure 1 -4, a twist-resistant and bend-resistant power cord stretching device, comprising:

[0031] The supporting mechanism 100, the stretching mechanism 200, the fixing mechanism 300, the limiting mechanism 400 and the feeding mechanism 500 are provided. The supporting mechanism 100 includes a supporting base 1001. A pair of mounting grooves 1002 are provided on one side of the top of the supporting base 1001. The stretching mechanism 200 includes a slide 2001. A pair of sliders 2002 are installed at the bottom of the slide 2001. The sliders 2002 can slide inside the mounting grooves 1002. The interior of the mounting grooves 1002 is connected to a lead screw 2003 through a bearing. The lead screw 2003 and the slider 2002 engage with each other. A first machine base 2004 is installed on the back side of the support base 1001, and a first motor 2005 is installed on the top of the first machine base 2004. One end of the lead screw 2003 is connected to the rotating shaft 2006, and a first synchronous wheel 2007 is installed on the outer side of the rotating shaft 2006. A first synchronous belt 2008 is connected between the first synchronous wheels 2007. The output end of the first motor 2005 is connected to one of the rotating shafts 2006. The fixing mechanism 300 is installed on the top of the skateboard 2001, and the fixing mechanism 300 can be fixed to one end of the power cord.

[0032] According to an embodiment of the present invention, the fixing mechanism 300 includes a fixing sleeve 3001, which is installed on the top of the skateboard 2001. A bottom plate 3011 is installed on one side of the fixing sleeve 3001. A first adjustment groove 3012 is provided on the top of the bottom plate 3011, and a through hole 3013 is provided at the center of the bottom plate 3011. An adjustment block 3010 is slidably connected in each side of the first adjustment groove 3012. A splint 3008 is installed on the top of the adjustment block 3010. An adjustment rod 3009 is installed on the top of the splint 3008. An adjustment plate 3002 is movably connected to the top of the bottom plate 3011. A slot is provided at the center of the adjustment plate 3002. A plurality of second adjustment grooves 3007 are provided on the top of the adjustment plate 3002, and the adjustment rod 3009 can slide inside the second adjustment groove 3007.

[0033] In an embodiment of the present invention, further, the first adjustment groove 3012 is a regular hexagon, the number of the second adjustment grooves 3007 is six, the splints 3008 are isosceles triangles, and the splints 3008 can fit together.

[0034] In an embodiment of the present invention, further, a driven gear 3006 is installed on the outer side of the adjusting plate 3002, a second machine base 3003 is installed on the top of the fixed sleeve 3001, and a second motor 3004 is installed on the top of the second machine base 3003. The output end of the second motor 3004 is drivingly connected to a driving gear 3005, and the driving gear 3005 and the driven gear 3006 are meshingly connected.

[0035] In an embodiment of the present invention, further, the limiting mechanism 400 includes a pair of support rods 4001. The pair of support rods 4001 are installed on the other side of the top of the support base 1001, and a sliding groove 4004 is provided on each side of the pair of support rods 4001 that are close to each other. A limiting block 4006 is slidably connected inside the sliding groove 4004. A first limiting roller 4002 is connected between the support rods 4001. The limiting blocks 4006 are connected by bearings to a second limiting roller 4005, and a limiting groove 4003 is provided at the top of the first limiting roller 4002.

[0036] In an embodiment of the present invention, further, threaded rods 4007 are installed inside the sliding grooves 4004. The limiting blocks 4006 are engaged with the threaded rods 4007. The tops of the threaded rods 4007 are drivingly connected to connecting shafts. Second synchronous wheels 4008 are installed on the outer sides of the connecting shafts. A second synchronous belt 4009 is connected between the second synchronous wheels 4008. The top of one of the connecting shafts is drivingly connected to a knob 4010.

[0037] In an embodiment of the present invention, further, a support frame 1003 is installed on the top of the support base 1001 between the sliding plate 2001 and the support rods 4001, and a sleeve 1004 is installed on the top of the support frame 1003.

[0038] In an embodiment of the present invention, further, the feeding mechanism 500 includes a pair of support columns 5001. The pair of support columns 5001 are provided on one side of the support base 1001, and a pair of support columns 5001 are connected by bearings to an idler shaft 5003 on the side close to each other. A feeding roller 5002 is connected between the idler shafts 5003.

[0039] In an embodiment of the present invention, further, a third machine base 5005 is installed on the outer side of one of the pair of support columns 5001, and a hydraulic rod 5006 is installed on the top of the third machine base 5005. A rack 5007 is installed at the output end of the hydraulic rod 5006. An idler gear 5004 is installed on the outer side of the idler shaft 5003, and the rack 5007 can be engaged with the idler gear 5004.

[0040] Embodiment Two

[0041] Refer to the appendix Figure 5As shown, an embodiment of the present invention further provides a method for stretching a twist-resistant power cord, comprising the following steps:

[0042] S1, Installation: Connect the feeding roller 5002 with the power cord tied to it to a pair of inert shafts 5003, then pass one end of the power cord through the first limiting roller 4002 and the second limiting roller 4005, and make it located inside the limiting groove 4003, then rotate the knob 4010, and under the action of the second synchronous wheel 4008 and the second synchronous belt 4009, the pair of threaded rods 4007 will rotate synchronously, so that the limiting block 4006 moves downward in the slide groove 4004, thereby causing the second limiting roller 4005 to squeeze the top of the power cord, and then pass one end of the power cord through the sleeve 1004. and insert it into the through hole 3013. Then, the second motor 3004 is started. Under the action of the driving gear 3006 and the driven gear 3005, the adjusting plate 3002 is rotated to make the adjusting rod 3009 slide in the second adjusting slot 3007. Since the adjusting rod 3009 is connected to the clamping plate 3008, and the adjusting block 3010 at the bottom of the clamping plate 3008 can only slide in the first adjusting slot 3012, the clamping plate 3008 can only slide along the edge of the first adjusting slot 3012, so that the six groups of clamping plates 3008 are brought close to each other to fix one end of the power cord.

[0043] S2, stretching: Start the first motor 2005 to drive one of the rotating shafts 2006 to rotate. Driven by the first synchronous wheel 2007 and the first synchronous belt 2008, the other rotating shaft 2006 rotates, thereby causing the pair of lead screws 2003 to rotate synchronously, so that the slider 2002 moves backward, thereby driving one end of the power cord to move. At the same time, start the hydraulic rod 5006 to make the rack 5007 engage with the idler gear 5004, so that the feeding roller 5002 cannot rotate. The power cord is straightened and can be fully stretched.

[0044] S3, cutting: Place the cutting tool on the side of the sleeve 1004 close to the fixing sleeve 3001 and cut the power cord from there. At this time, one end of the power cord will remain in the sleeve 1004. The user can directly pull out one end of the power cord in the sleeve 1004 and put it into the through hole 3013 for the next fixation and stretching.

[0045] It should be noted that the specific models and specifications of the first motor 2005, the second motor 3003 and the hydraulic rod 5006 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0046] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A stretching device for a power cord resistant to twisting and bending, characterized in that, Including: A support mechanism (100), a stretching mechanism (200), a fixing mechanism (300), a limiting mechanism (400), and a feeding mechanism (500). The support mechanism (100) includes a support base (1001). A pair of mounting grooves (1002) are formed on one side of the top of the support base (1001). The stretching mechanism (200) includes a sliding plate (2001), and a pair of sliding blocks (2002) are installed at the bottom of the sliding plate (2001). The sliding blocks (2002) can slide inside the mounting grooves (1002). Lead screws (2003) are connected inside the mounting grooves (1002) through bearings. The lead screws (2003) and the sliding blocks (2002) are engaged with each other. A first machine base (2004) is installed on the back side of the support base (1001), and a first motor (2005) is installed on the top of the first machine base (2004). One end of each lead screw (2003) is drivingly connected to a rotating shaft (2006). First synchronous pulleys (2007) are installed on the outer sides of the rotating shafts (2006). A first synchronous belt (2008) is connected between the first synchronous pulleys (2007). The output end of the first motor (2005) is drivingly connected to one of the rotating shafts (2006). The fixing mechanism (300) is installed on the top of the sliding plate (2001), and the fixing mechanism (300) can be fixed to one end of a power cord. The fixing mechanism (300) includes a fixing sleeve (3001). The fixing sleeve (3001) is installed on the top of the sliding plate (2001). A bottom plate (3011) is installed on one side of the fixing sleeve (3001). A first adjustment groove (3012) is formed on the top of the bottom plate (3011). A through hole (3013) is formed at the center of the bottom plate (3011). Adjustment blocks (3010) are slidably connected inside each side of the first adjustment groove (3012). Clamping plates (3008) are installed on the tops of the adjustment blocks (3010). Adjustment rods (3009) are installed on the tops of the clamping plates (3008). An adjustment plate (3002) is movably connected to the top of the bottom plate (3011). A slot is formed at the center of the adjustment plate (3002). A number of second adjustment grooves (3007) are formed on the top of the adjustment plate (3002). The adjustment rods (3009) can slide inside the second adjustment grooves (3007). The limiting mechanism (400) includes a pair of support rods (4001). The pair of support rods (4001) are installed on the other side of the top of the support base (1001). Chute grooves (4004) are formed on the sides of the pair of support rods (4001) close to each other. Limiting blocks (4006) are slidably connected inside the chute grooves (4004). A first limiting roller (4002) is connected between the support rods (4001). A second limiting roller (4005) is connected between the limiting blocks (4006) through a bearing.Moreover, a limiting groove (4003) is formed at the top of the first limiting roller (4002). The feeding mechanism (500) includes a pair of support columns (5001), and the pair of support columns (5001) are arranged on one side of the support base (1001). A pair of idler shafts (5003) are connected to the side of the pair of support columns (5001) close to each other through bearings, and a feeding roller (5002) is connected between the idler shafts (5003). A third machine base (5005) is installed on the outside of one of the pair of support columns (5001), and a hydraulic rod (5006) is installed on the top of the third machine base (5005). A rack (5007) is installed at the output end of the hydraulic rod (5006). An idler gear (5004) is installed on the outside of the idler shaft (5003), and the rack (5007) can be engaged with the idler gear (5004).

2. The stretching device for a twist-resistant and bend-resistant power cord according to claim 1, characterized in that: The first adjustment groove (3012) is regular hexagon, the number of the second adjustment grooves (3007) is six, the clamping plates (3008) are isosceles triangles, and the clamping plates (3008) can be mutually attached.

3. The stretching device for a twist-resistant and bend-resistant power cord according to claim 2, wherein: A driven gear (3006) is installed on the outer side of the adjustment plate (3002), a second machine base (3003) is installed on the top of the fixed sleeve (3001), and a second motor (3004) is installed on the top of the second machine base (3003). The output end of the second motor (3004) is in transmission connection with a driving gear (3005), and the driving gear (3005) and the driven gear (3006) are meshed and connected.

4. A stretching device for a twist-resistant and bend-resistant power cord according to claim 1, characterized in that: Threaded rods (4007) are installed inside the sliding grooves (4004). The limiting blocks (4006) are engaged with the threaded rods (4007). The tops of the threaded rods (4007) are all in transmission connection with connecting shafts. Second synchronous wheels (4008) are installed on the outer sides of the connecting shafts. A second synchronous belt (4009) is connected between the second synchronous wheels (4008). The top of one of the connecting shafts is in transmission connection with a knob (4010).

5. The stretching device for a twist-resistant and bend-resistant power cord according to claim 4, wherein: A support frame (1003) is installed on the top of the support base (1001) between the sliding plate (2001) and the support rod (4001), and a sleeve (1004) is installed on the top of the support frame (1003).

6. A stretching device for a power cord resistant to twisting and bending, which is applied to the method of a stretching device for a power cord resistant to twisting and bending according to any one of claims 1 to 5, characterized in that, Including the following steps: S1, Installation: Connect the loading roller (5002) bundled with the power cord to a pair of idler shafts (5003). Then pass one end of the power cord through between the first limiting roller (4002) and the second limiting roller (4005) and make it located inside the limiting groove (4003). Subsequently, rotate the knob (4010). Under the action of the second synchronous wheels (4008) and the second synchronous belt (4009), a pair of threaded rods (4007) will rotate synchronously, so that the limiting blocks (4006) move downward in the sliding grooves (4004), and further the second limiting roller (4005) presses the top of the power cord. Then pass one end of the power cord through the inside of the sleeve (1004) and put it into the through hole (3013), and start the second motor (3004). Under the action of the driving gear (3005) and the driven gear (3006), the adjustment plate (3002) can be rotated to make the adjustment rod (3009) slide in the second adjustment groove (3007). Since the adjustment rod (3009) is connected to the clamping plate (3008), and the adjustment block (3010) at the bottom of the clamping plate (3008) can only slide in the first adjustment groove (3012), the clamping plate (3008) can only slide along the edge of the first adjustment groove (3012), so that the six groups of clamping plates (3008) approach each other to fix one end of the power cord; S2, Stretching: Start the first motor (2005) to drive one of the rotating shafts (2006) to rotate. Driven by the first synchronous pulley (2007) and the first synchronous belt (2008), the other rotating shaft (2006) rotates, so that a pair of lead screws (2003) rotate synchronously, causing the slider (2002) to move backward, thereby driving one end of the power cord to move. At the same time, start the hydraulic rod (5006) to make the rack (5007) engage with the idler gear (5004), so that the feeding roller (5002) cannot rotate, and the power cord will be straightened accordingly, enabling the power cord to be fully stretched; S3, Cutting: Place the cutting tool on the side of the sleeve (1004) close to the fixed sleeve (3001) and cut the power cord from this position. At this time, one end of the power cord will remain in the sleeve (1004), and the user can directly pull out one end of the power cord in the sleeve (1004) and put it into the through hole (3013) for the next fixation and stretching.

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