Connect the injection molding machine at the end of the communication cable

Abstract

The present invention discloses an injection molding machine for connecting the ends of communication cables, comprising a base fixedly supported on the ground by an external bracket, a first mold fixedly connected to the base, a rectangular frame fixedly connected to one side of the base, a sleeve block for lifting and reciprocating movement movably connected to the inner wall of the rectangular frame, a threaded rod penetrated and rotatably connected to the top of the rectangular frame driven to rotate by a power mechanism, and the sleeve block is penetrated and screwed by the threaded rod, a support seat is fixedly connected to one side of the sleeve block, lifting rods for lifting and reciprocating movement are penetrated and movably connected to the support seat near four corners, a second mold for closing with the first mold is fixedly connected to the bottom of the lifting rod, a clamping mechanism for clamping the cable and a pulling mechanism for straightening the cable are provided on the second mold, and the application has the function of straightening the cable in the mold, thereby improving the injection molding effect of the cable.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines for communication cable ends, in particular to an injection molding machine connected to communication cable ends. Background Art

[0002] The connector at the end of the cable is connected to the circuit board by the cable, and a metal shell is installed on the outside of the circuit board. At the same time, a rubber seat is injection molded at the connection between the metal shell and the cable, so as to strengthen the connection and increase the service life. In the injection molding process of the rubber seat, only one end can be processed separately, and it is difficult to realize the injection molding of multiple cable ends at the same time to form a uniform rubber seat. Due to this defect, it can only be processed one by one, and the processing efficiency is low and the processing cost is high. When working, a person manually stands next to the injection molding machine and manually presses the switch of the injection molding machine to make the upper mold of the injection molding machine descend and contact and seal with the lower mold. There will be a space for injection molding between the upper mold and the lower mold, and then the liquid material for injection molding is sprayed into the space between the upper mold and the lower mold through the injector, and then it will be injection molded after cooling, and then the switch is manually pressed to move the upper mold of the injection molding machine upward, and then the injection molded battery shell is manually removed from the lower mold, and the injection molded battery shell is usually in a state of being sleeved on the lower mold.

[0003] The existing Chinese patent with publication number CN116175877B includes a base and a support mechanism for supporting the injection mold, controlling the opening and closing of the mold and injection molding, which is arranged directly above the base to guide and limit the cable; it includes a support plate, the surface of the support plate is fixedly connected to a connecting plate, the surface of the connecting plate is provided with a groove, the connecting plate is fixedly connected to a wiring assembly near the groove, the cable passes through the wiring assembly and extends to the inside of the connecting plate, the mold is closed and injection molding is performed, the cable is directly connected to the injection-molded wiring head, the groove is close to the position of the fixed mold, the cable passes through the wiring assembly, the wiring assembly limits the cable, and the slide rod is externally connected to the pushing device.

[0004] When the above device is in use, the frame is pushed to slide on the surface of the guide rod by the sliding rod, and the frame moves toward the fixed mold. The sliding component is arranged at a position of the sliding rod close to the outside of the device to prevent impurities from adhering to the surface of the sliding rod and causing obstruction of the mold. The mold is combined to fix the cable, and molten plastic is injected into the fixed mold position to form the cable joint. The moving component locks the mold. However, it is difficult to straighten the cable in the mold during actual use. When injection molding is performed in the mold, the cable inside the mold is easily loosened and shaken, resulting in uneven thickness of the cable end after injection molding, affecting the use effect of the cable.

[0005] For this purpose we propose an injection molding machine connected to the end of the communication cable. Summary of the invention

[0006] The purpose of the present invention is to provide an injection molding machine connected to the end of a communication cable, which has the advantage of straightening the cable in the mold and solves the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an injection molding machine connected to the end of a communication cable, comprising a base fixedly supported on the ground by an external bracket, a first mold fixedly connected to the base, a rectangular frame fixedly connected to one side of the base, a sleeve block for lifting and reciprocating movement movably connected to the inner wall of the rectangular frame, a threaded rod driven to rotate by a power mechanism is penetrated and rotatably connected to the top of the rectangular frame, and the sleeve block is penetrated and screwed by the threaded rod, a support seat is fixedly connected to one side of the sleeve block, and lifting rods for lifting and reciprocating movement are penetrated and movably connected to the support seat near the four corners, a second mold for closing the mold with the first mold is fixedly connected to the bottom of the lifting rod, a first spring for guiding the second mold to reset and move is sleeved on the outer contour of each lifting rod, and the two ends of each first spring are respectively fixedly connected to the support seat and the second mold, a clamping mechanism for clamping the cable and a pulling mechanism for straightening the cable are provided on the second mold, and the above-mentioned power mechanism is a motor after power is turned on.

[0008] Preferably, the clamping mechanism includes support rods fixedly connected at symmetrical positions on both sides of the second mold, and second clamping plates for clamping the cables are sleeved on the outer contours of the two support rods. A third spring for guiding the second clamping plate to reset and move is fixedly connected on the opposite surface of each side of the second clamping plate and the second mold.

[0009] Preferably, cylindrical rods are fixedly connected to the positions corresponding to the support rods on both sides of the first mold, and the first clamping plates that cooperate with the second clamping plates for clamping are sleeved on the outer contours of the two cylindrical rods. A second spring that guides the first clamping plate to reset and move is fixedly connected to the opposite surface of the first clamping plate and the first mold on each side, and limit blocks for limiting and supporting the third spring are provided at symmetrical positions at both ends of the top of each second spring, and limit grooves that match the inner wall of the limit block are fixedly connected to symmetrical positions at both ends of the bottom of each third spring.

[0010] Preferably, the pulling mechanism includes two second clamping plates, the tops of which are rotatably connected to the first connecting seat via a pin shaft, each of which is fixedly connected to a plug rod for pushing the first clamping plate and the second clamping plate to move away from each other and pull the cable, and a sleeve rod for telescopic adjustment is sleeved on the outer contour of each end of the plug rod away from the first connecting seat, and each end of the sleeve rod away from the plug rod is fixedly connected to the second connecting seat, the two second connecting seats are respectively rotatably connected to the adjacent side of the support seat via a pin shaft, and a fourth spring for guiding the first connecting seat to reset and move is fixedly connected to the opposite surface of the second connecting seat and the first connecting seat on each side.

[0011] Preferably, the support seat is provided with an injection molding mechanism for performing injection molding on the interior of the first mold and the second mold, the injection molding mechanism includes a cavity opened on the support seat, and the top of the support seat penetrates through the inner wall of the cavity and is fixedly connected to the heating barrel, the bottom of the support seat penetrates through the inner wall of the cavity and is movably connected to a connecting pipe for lifting and reciprocating movement, and the bottom end of the connecting pipe penetrates through the inner wall of the second mold and is fixedly connected.

[0012] Preferably, the inner walls of the heating barrel and the connecting pipe near one end of the support seat are fixedly connected with a one-way liquid inlet valve and a one-way liquid discharge valve for quantitatively extracting or discharging the plastic fluid inside the heating barrel, and the outer contour of the top end of the connecting pipe is fixedly connected with a piston plate that is in contact with the inner wall of the cavity and movably connected.

[0013] Preferably, the first mold is provided with a lifting mechanism for demolding the cable after injection molding on the inner wall of the first mold, the lifting mechanism includes a cylindrical tube that is penetrated and fixedly connected to the first mold, the inner wall of the cylindrical tube is movably connected to a first piston rod that can perform lifting and reciprocating movements, the top end of the first piston rod is fixedly connected to an arc block that lifts the cable after injection molding inside the first mold, and the inner wall of the first mold is provided with an arc groove that matches the outer contour of the arc block.

[0014] Preferably, the cylindrical tube is penetrated and fixedly connected with cylindrical shells at symmetrical positions on both sides near the bottom end, the inner walls of the two cylindrical shells are fixedly connected with second piston rods, and the end of the second piston rod on each side away from the cylindrical tube is fixedly connected to the first clamping plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The motor can drive the threaded rod to perform fixed-axis reciprocating rotation on the rectangular frame, so that the sleeve block can be lifted and reciprocated along the inner wall of the rectangular frame. When the sleeve block drives the support seat to move in the vertical direction close to the first mold, the second mold can be moved to fit with the first mold for mold closing. When the second mold contacts the first mold, the support seat moves in the direction close to the second mold under the action of the sleeve block, and the first spring is squeezed and contracted under the action of the support seat, so that the second mold can fit closely with the first mold under the elastic force of the first spring, thereby improving the stability of the mold closing between the second mold and the first mold, so as to facilitate the subsequent injection molding operation of the cables inside the second mold and the first mold.

[0017] 2. When the support seat drives the second mold to move and contact with the first mold for mold closing, the second clamping plate can contact with the first clamping plate under the action of the second mold to clamp and fix the cables on the inner wall. Through the limit groove opened on the first clamping plate and the limit block arranged on the second clamping plate, the limit block moves to the inner wall of the limit groove under the action of the second clamping plate to engage, thereby improving the stability of the second clamping plate clamping the cables on the inner wall of the first clamping plate.

[0018] 3. As the sleeve block drives the support seat to move in the vertical direction close to the second mold, the insertion rod and the sleeve rod push the second clamping plate to move horizontally in the opposite directions under the support of the fourth spring, and the first clamping plate moves synchronously in the opposite directions along with the second clamping plate under the action of the engagement of the limit block and the limit groove, so that the first clamping plate and the second clamping plate can straighten the cables on the inner walls of the first mold and the second mold. After the cables of the second mold and the inner wall of the first mold are straightened along with the movement of the second clamping plate in opposite directions, the second connecting seat drives the sleeve rod to move axially in the direction close to the first connecting seat under the action of the support seat, so that the fourth spring is squeezed and contracted under the action of the second connecting seat, and then the second clamping plate can maintain the pulling force on the cable under the elastic force of the fourth spring, thereby improving the injection molding effect on the cable end and avoiding the loosening of the cable during the subsequent injection molding of the cable ends of the second mold and the inner wall of the first mold, resulting in inconsistent injection molding thickness of the cable ends.

[0019] 4. As the support seat moves in the vertical direction close to the second mold, the connecting pipe drives the piston plate to move toward the end close to the heating barrel, and the internal air pressure of the cavity close to the heating barrel is positive pressure, through the one-way liquid inlet valve provided on the heating barrel and the one-way liquid discharge valve provided on the connecting pipe, the one-way liquid inlet valve is in a closed state and the one-way liquid discharge valve is in an open state, so that the connecting pipe can discharge the internal plastic fluid of the cavity close to the heating barrel to the inner walls of the second mold and the first mold for injection molding.

[0020] 5. When the injection molding is completed, along with the first clamping plate resetting and moving in the opposite direction, the first clamping plate pushes the second piston rod to move axially in the opposite direction on the inner wall of the cylindrical shell, and the second piston rod fills the gas inside the cylindrical shell into the interior of the cylindrical tube. At this time, the internal air pressure of the cylindrical tube close to one end of the cylindrical shell is positive pressure, so that the first piston rod pushes the arc block to move in the vertical direction away from one end of the cylindrical shell, which can enable the arc block to lift the cable after injection molding in the first mold to complete demolding, so that personnel can take out the injection molded cable.

[0021] The coordinated use of the above-mentioned structure solves the problem that, in actual use, the existing device is difficult to straighten the cables in the mold, and when injection molding is performed in the mold, the cables inside the mold are easily loosened and shaken, resulting in uneven thickness of the cable ends after injection molding, affecting the use effect of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a cross-sectional schematic diagram of the three-dimensional structure of the support seat of the present invention;

[0024] Figure 3 It is a cross-sectional schematic diagram of the three-dimensional structure of the first mold of the present invention;

[0025] Figure 4 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0026] Figure 5 For the present invention Figure 3 Schematic diagram of the structure at B in the middle;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the first connecting seat of the present invention;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the first splint of the present invention;

[0029] Figure 8 It is a schematic cross-sectional view of the three-dimensional structure of the cylindrical tube of the present invention.

[0030] In the figure: 1, base; 2, first mold; 201, arc groove; 3, rectangular frame; 4, sleeve block; 5, threaded rod; 6, support seat; 601, cavity; 7, lifting rod; 8, second mold; 9, first spring; 10, cylindrical rod; 11, first clamping plate; 111, limit groove; 12, second spring; 13, support rod; 14, second clamping plate; 141, limit block; 15, third spring; 16, first connecting seat; 17, plug rod; 18, sleeve rod; 19, second connecting seat; 20, fourth spring; 21, heating barrel; 211, one-way liquid inlet valve; 22, connecting pipe; 221, one-way liquid discharge valve; 23, piston plate; 24, cylindrical tube; 25, first piston rod; 26, arc block; 27, cylindrical shell; 28, second piston rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] See also Figure 1 and Figure 2 The present invention provides a technical solution: an injection molding machine connected to the end of a communication cable, comprising a base 1 fixedly supported on the ground by an external bracket, a first mold 2 fixedly connected to the base 1, a rectangular frame 3 fixedly connected to one side of the base 1, a sleeve block 4 for lifting and reciprocating movement movably connected to the inner wall of the rectangular frame 3, a threaded rod 5 driven to rotate by a power mechanism is penetrated and rotatably connected to the top of the rectangular frame 3, and the sleeve block 4 is penetrated and screwed by the threaded rod 5, a support seat 6 is fixedly connected to one side of the sleeve block 4, and lifting rods 7 for lifting and reciprocating movement are penetrated and movably connected to the support seat 6 near the four corners, and a second mold 8 for closing the mold with the first mold 2 is fixedly connected to the bottom of the lifting rod 7, and a first spring 9 for guiding the second mold 8 to reset and move is sleeved on the outer contour of each lifting rod 7, and the two ends of each first spring 9 are fixedly connected to the support seat 6 and the second mold 8 respectively, and a clamping mechanism for clamping the cable and a pulling mechanism for straightening the cable are provided on the second mold 8, and the above-mentioned power mechanism is a motor after power is turned on.

[0034] When in use, by setting the base 1, first the base 1 is fixedly supported and placed on the ground by an external bracket to improve the stability of the injection molding machine body, and the first mold 2 and the rectangular frame 3 are fixedly placed on the base 1 by the first mold 2 and the rectangular frame 3 arranged on the base 1, and the rectangular frame 3 is provided with a sleeve block 4, so that the rectangular frame 3 is provided with a limit support for the moving direction of the sleeve block 4, and the threaded rod 5 is provided on the rectangular frame 3, and the threaded rod 5 is driven to rotate by the motor, so that the motor can drive the threaded rod 5 to perform fixed-axis reciprocating rotation on the rectangular frame 3, and the threaded rod 5 passes through the sleeve block 4 The inner wall of the sleeve 4 is screwed and connected, and the threaded rod 5 rotates back and forth on a fixed axis, so that the sleeve block 4 can be lifted and reciprocated along the inner wall of the rectangular frame 3. The support seat 6 is fixedly supported on the sleeve block 4 through the support seat 6 provided on the sleeve block 4, so that the sleeve block 4 can drive the support seat 6 to lift and reciprocate synchronously. Through the lifting rod 7 provided on the support seat 6, the lifting rod 7 passes through the support seat 6 and is connected for lifting and reciprocating movement. Through the second mold 8 and the first spring 9 provided on the lifting rod 7, the first spring 9 supports the second mold 8 and the lifting rod 7 and places them on the support seat 6.

[0035] When the sleeve block 4 drives the support seat 6 to move in the vertical direction close to the first mold 2, the second mold 8 can be moved to fit with the first mold 2 for mold closing. When the second mold 8 contacts the first mold 2, the support seat 6 moves in the direction close to the second mold 8 under the action of the sleeve block 4, and the first spring 9 is squeezed and contracted under the action of the support seat 6, so that the second mold 8 can fit tightly with the first mold 2 under the elastic force of the first spring 9, thereby improving the stability of the mold closing of the second mold 8 and the first mold 2, so as to facilitate the subsequent injection molding operation of the cables inside the second mold 8 and the first mold 2.

[0036] When the sleeve block 4 drives the support seat 6 to move in a direction away from the first mold 2, the above-mentioned mechanism performs a reset movement in the opposite direction.

[0037] Example 2

[0038] See also Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 On the basis of the first embodiment, further:

[0039] The clamping mechanism includes support rods 13 fixedly connected at symmetrical positions on both sides of the second mold 8, and second clamping plates 14 for clamping the cable are sleeved on the outer contours of the two support rods 13. A third spring 15 for guiding the second clamping plate 14 to return to its original position is fixedly connected to the opposite surface of each second clamping plate 14 and the second mold 8.

[0040] Columnar rods 10 are fixedly connected to the positions corresponding to the support rods 13 on both sides of the first mold 2, and the first clamping plates 11 that cooperate with the second clamping plates 14 for clamping are sleeved on the outer contours of the two columnar rods 10. A second spring 12 that guides the first clamping plate 11 to return to its original position is fixedly connected to the opposite surface of the first clamping plate 11 and the first mold 2 on each side, and limit blocks 141 for limiting and supporting the third spring 15 are provided at symmetrical positions at both ends of the top of each of the second springs 12, and limit grooves 111 that match the inner wall of the limit block 141 are fixedly connected to symmetrical positions at both ends of the bottom of each of the third springs 15.

[0041] When in use, the support rod 13 arranged on the second mold 8 is first fixed and supported at the symmetrical positions at both ends of the second mold 8, and the second clamping plate 14 arranged on the support rod 13 is used to make the second clamping plate 14 move horizontally on the outer contour of the support rod 13. The third spring 15 is arranged on the second clamping plate 14, and the third spring 15 supports the position of the second clamping plate 14 in a limited manner, so that the third spring 15 can guide the second clamping plate 14 to reset and move. The columnar rod 10 is set on the first mold 2, so that the columnar rod 10 corresponds to the position of the support rod 13 and is placed in parallel.

[0042] By means of the first clamping plate 11 arranged on the cylindrical rod 10 and the second spring 12 arranged on the first clamping plate 11, the second spring 12 limits and supports the position of the first clamping plate 11, and at the same time, the positions of the first clamping plate 11 and the second clamping plate 14 correspond to each other. First, one end of the cable is placed on the inner wall of the first mold 2, and the first clamping plates 11 on both sides of the first mold 2 support the cable on the inner wall. When the support seat 6 drives the second mold 8 to move and contact with the first mold 2 for mold closing, the second clamping plate 14 can contact with the first clamping plate 11 under the action of the second mold 8 to clamp and fix the cable on the inner wall. By means of the limiting groove 111 opened on the first clamping plate 11 and the limiting block 141 arranged on the second clamping plate 14, the limiting block 141 moves to the inner wall of the limiting groove 111 under the action of the second clamping plate 14 to engage with it, thereby improving the stability of the second clamping plate 14 in clamping the cable on the inner wall of the first clamping plate 11.

[0043] Example 3

[0044] See also Figure 1 , Figure 2 , Figure 4 and Figure 6 On the basis of the second embodiment, further:

[0045] The pulling mechanism includes two second clamping plates 14, both of which are rotatably connected to a first connecting seat 16 via a pin shaft, and each of the first connecting seats 16 is fixedly connected to a plug rod 17 for pushing the first clamping plate 11 and the second clamping plate 14 to move away from each other and pull the cable, and each of the plugging rods 17 is sleeved with a sleeve rod 18 for telescopic adjustment on the outer contour of the end away from the first connecting seat 16, and each of the sleeve rods 18 is fixedly connected to a second connecting seat 19 at one end away from the plugging rod 17, and the two second connecting seats 19 are respectively rotatably connected to the adjacent side of the support seat 6 via a pin shaft, and a fourth spring 20 for guiding the first connecting seat 16 to reset and move is fixedly connected to the opposite surface of the second connecting seat 19 and the first connecting seat 16 on each side.

[0046] When in use, the first connecting seat 16 is rotatably connected to the second splint 14 through a pin shaft through the first connecting seat 16 arranged on the second splint 14, and the plug rod 17 is fixedly supported on the first connecting seat 16 through the plug rod 17 arranged on the first connecting seat 16, and the sleeve rod 18 arranged on the plug rod 17 makes the sleeve rod 18 sleeved on the outer contour of the plug rod 17 and connected for axial movement, and the sleeve rod 18 is fixedly supported on the second connecting seat 19 through the second connecting seat 19 arranged on the sleeve rod 18, and the second connecting seat 19 is rotatably connected to the support seat 6 through the pin shaft, and the fourth spring 20 arranged on the second connecting seat 19 and the first connecting seat 16 can support the first connecting seat 16 and the second connecting seat 19.

[0047] When the second mold 8 moves to contact the first mold 2 for mold closing, and the second clamp 14 clamps the cables on the inner wall of the first clamp 11, the sleeve block 4 drives the support seat 6 to move in the vertical direction close to the second mold 8, so that the insertion rod 17 and the sleeve rod 18 push the second clamp 14 to move horizontally in opposite directions under the support of the fourth spring 20, and the first clamp 11 moves synchronously with the second clamp 14 in opposite directions under the action of the engagement of the limit block 141 and the limit groove 111, so that the first clamp 11 and the second clamp 14 can straighten the cables on the inner walls of the first mold 2 and the second mold 8.

[0048] After the second clamping plate 14 moves away from each other to straighten the cables on the inner walls of the second mold 8 and the first mold 2, the second connecting seat 19 drives the sleeve rod 18 to move axially in the direction close to the first connecting seat 16 under the action of the support seat 6, so that the fourth spring 20 is squeezed and contracted under the action of the second connecting seat 19, and then the second clamping plate 14 can maintain the pulling force on the cable under the elastic force of the fourth spring 20, thereby improving the injection molding effect on the cable end, avoiding the subsequent loosening of the cable during the injection molding of the cable end of the inner wall of the second mold 8 and the first mold 2, resulting in inconsistent injection molding thickness of the cable end, and at the same time, the second spring 12 and the third spring 15 are in a stretched state under the action of the first clamping plate 11 and the second clamping plate 14, so that the second spring 12 and the third spring 15 can guide the first clamping plate 11 and the second clamping plate 14 to reset and move.

[0049] When the support seat 6 is reset and moved in a direction away from the second mold 8, the above-mentioned mechanism is reset and moved in the opposite direction.

[0050] Example 4

[0051] See also Figure 1 and Figure 2 On the basis of the third embodiment, further:

[0052] The support seat 6 is provided with an injection molding mechanism for performing injection molding on the interior of the first mold 2 and the second mold 8, and the injection molding mechanism includes a cavity 601 opened on the support seat 6, and the top of the support seat 6 penetrates through the inner wall of the cavity 601 and is fixedly connected to the heating barrel 21, the bottom of the support seat 6 penetrates through the inner wall of the cavity 601 and is movably connected to a connecting pipe 22 for lifting and reciprocating movement, and the bottom end of the connecting pipe 22 penetrates through the inner wall of the second mold 8 and is fixedly connected.

[0053] The inner walls of the heating barrel 21 and the connecting pipe 22 near one end of the support seat 6 are fixedly connected with a one-way liquid inlet valve 211 and a one-way liquid discharge valve 221 for quantitatively extracting or discharging the plastic fluid inside the heating barrel 21, and the outer contour of the top end of the connecting pipe 22 is fixedly connected with a piston plate 23 that is in contact with the inner wall of the cavity 601 and is movably connected.

[0054] When in use, through the cavity 601 opened on the support seat 6 and the heating barrel 21 arranged on the support seat 6, the outlet end of the heating barrel 21 is connected to the cavity 601, and the plastic particles are placed inside the heating barrel 21 to be melted to form a plastic fluid. Through the connecting pipe 22 arranged on the support seat 6, the top end of the connecting pipe 22 penetrates the inner wall of the cavity 601 and is connected to be lifted and moved. At the same time, the bottom end of the first mold 2 penetrates the inner wall of the second mold 8 and is fixedly connected.

[0055] Through the piston plate 23 arranged on the connecting tube 22, as the support seat 6 moves in the vertical direction close to the second mold 8, the connecting tube 22 drives the piston plate 23 to move toward the end close to the heating barrel 21, and the internal air pressure of the cavity 601 close to the heating barrel 21 is positive pressure, through the one-way liquid inlet valve 211 arranged on the heating barrel 21 and the one-way liquid discharge valve 221 arranged on the connecting tube 22, at this time, the one-way liquid inlet valve 211 is in a closed state, and the one-way liquid discharge valve 221 is in an open state, so that the connecting tube 22 can discharge the internal plastic fluid of the cavity 601 close to the heating barrel 21 end to the inner wall of the second mold 8 and the first mold 2 for injection molding.

[0056] When the support seat 6 is reset and moved in the direction away from the second mold 8, which is opposite to the movement direction of the above-mentioned structure, the connecting tube 22 can pull the piston plate 23 to reset and move in the direction away from the heating barrel 21, and the internal air pressure of the cavity 601 close to the heating barrel 21 is negative pressure. At this time, the one-way liquid inlet valve 211 is in an open state, and the one-way liquid discharge valve 221 is in a closed state, so that the piston plate 23 can extract the plastic fluid inside the heating barrel 21 to the inner wall of the cavity 601.

[0057] Example 5

[0058] See also Figure 3 , Figure 5 and Figure 8 On the basis of the fourth embodiment, further:

[0059] The first mold 2 is provided with a lifting mechanism for demolding the cable after injection molding on the inner wall of the first mold 2, and the lifting mechanism includes a cylindrical tube 24 that is penetrated and fixedly connected to the first mold 2, and the inner wall of the cylindrical tube 24 is movably connected to a first piston rod 25 that can perform lifting and reciprocating movements, and the top end of the first piston rod 25 is fixedly connected to an arc block 26 for lifting the cable after injection molding inside the first mold 2, and the inner wall of the first mold 2 is provided with an arc groove 201 that is adapted to the outer contour of the arc block 26.

[0060] The cylindrical tube 24 is symmetrically connected to the bottom end of the cylindrical tube 24 at both sides thereof and fixedly connected thereto with cylindrical shells 27 . The inner walls of the two cylindrical shells 27 are fixedly connected to second piston rods 28 . The end of each side of the second piston rod 28 away from the cylindrical tube 24 is fixedly connected to the first clamping plate 11 .

[0061] When in use, through the cylindrical tube 24 set on the first mold 2, the cylindrical tube 24 penetrates to the inner wall of the first mold 2 and is fixedly connected, and through the first piston rod 25 set on the cylindrical tube 24, the first piston rod 25 is axially moved and connected to the inner wall of the cylindrical tube 24, and the arc block 26 set on the first piston rod 25 fixes the arc block 26 on the first piston rod 25, and the arc groove 201 opened on the first mold 2 makes the arc groove 201 match the outer contour of the arc block 26, and through the cylindrical shell 27 set on the cylindrical tube 24, the cylindrical shell 27 can be communicated with the cylindrical tube 24 and fixedly connected, and through the second piston rod 28 set on the cylindrical shell 27, the second piston rod 28 is fixedly connected to the first clamping plate 11.

[0062] As the first clamping plate 11 moves in opposite directions to pull the cable, the second piston rod 28 is pulled by the first clamping plate 11 to move axially in opposite directions simultaneously, so that the second piston rod 28 can extract the internal gas of the cylindrical tube 24 into the interior of the cylindrical shell 27, and the internal air pressure of the cylindrical tube 24 near one end of the cylindrical shell 27 is in a negative pressure state, and then the first piston rod 25 can pull the arc block 26 to move in the direction close to the arc groove 201, and the arc block 26 moves to fit the inner wall of the arc groove 201, so as to facilitate the injection molding operation on the cable end by the injection molding mechanism.

[0063] When the injection molding is completed, along with the reset movement of the first clamping plate 11 in the opposite direction, the first clamping plate 11 pushes the second piston rod 28 to move axially in the opposite direction on the inner wall of the cylindrical shell 27, and the second piston rod 28 fills the gas inside the cylindrical shell 27 into the interior of the cylindrical tube 24. At this time, the internal air pressure of the cylindrical tube 24 close to one end of the cylindrical shell 27 is positive pressure, so that the first piston rod 25 pushes the arc block 26 to move in the vertical direction away from one end of the cylindrical shell 27, which enables the arc block 26 to lift the cable after injection molding in the first mold 2 to complete demolding, so that personnel can take out the injection molded cable.

[0064] Furthermore, the existing device can straighten the cables in the mold during actual use, thereby improving the injection molding effect of the cables, being easy to use, and being better than traditional products.

[0065] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification and the drawings can also be directly processed according to the existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine connected to the end of a communication cable, characterized in that: The invention comprises a base (1) fixedly supported on the ground by an external bracket, a first mold (2) being fixedly connected to the base (1), a rectangular frame (3) being fixedly connected to one side of the base (1), a sleeve block (4) being movably connected to the inner wall of the rectangular frame (3) for lifting and reciprocating movement, a threaded rod (5) being penetrated and rotatably connected to the top of the rectangular frame (3) and driven to rotate by a power mechanism, and the sleeve block (4) being penetrated and screwed by the threaded rod (5), a support seat (6) being fixedly connected to one side of the sleeve block (4), and the support seat (6) having four corners near the four corners. Each of the lifting rods (7) is penetrated and movably connected to a lifting and reciprocating movement, the bottom of the lifting rod (7) is fixedly connected to a second mold (8) for closing with the first mold (2), the outer contour of each of the lifting rods (7) is sleeved with a first spring (9) for guiding the second mold (8) to reset, the two ends of each of the first springs (9) are respectively fixedly connected to the support seat (6) and the second mold (8), the second mold (8) is provided with a clamping mechanism for clamping the cable and a pulling mechanism for straightening the cable, and the above-mentioned power mechanism is a motor after power is turned on; The clamping mechanism comprises support rods (13) fixedly connected at symmetrical positions on both sides of the second mold (8), second clamping plates (14) for clamping the cable are sleeved on the outer contours of the two support rods (13), and a third spring (15) for guiding the second clamping plate (14) to return and move is fixedly connected to the surface of each second clamping plate (14) opposite to the second mold (8); Columnar rods (10) are fixedly connected at positions corresponding to the support rods (13) on both sides of the first mold (2); first clamping plates (11) that cooperate with the second clamping plates (14) for clamping are sleeved on the outer contours of the two columnar rods (10); a second spring (12) that guides the first clamping plates (11) to return and move is fixedly connected on the opposite surface of each side of the first clamping plates (11) and the first mold (2); a limit block (141) for limiting and supporting the third spring (15) is provided at symmetrical positions at both ends of the top of each second spring (12); and a limit groove (111) that matches the inner wall of the limit block (141) is fixedly connected at symmetrical positions at both ends of the bottom of each third spring (15).

2. The injection molding machine for connecting the ends of communication cables according to claim 1, characterized in that: The pulling mechanism comprises two second clamping plates (14) whose tops are rotatably connected to a first connecting seat (16) via a pin shaft, and each of the first connecting seats (16) is fixedly connected to a plug rod (17) for pushing the first clamping plate (11) and the second clamping plate (14) to move away from each other and pull the cable, and a sleeve rod (18) is sleeved on the outer contour of the end of each plug rod (17) away from the first connecting seat (16) for telescopic adjustment, and each of the sleeve rods (18) is fixedly connected to a second connecting seat (19) at one end away from the plug rod (17), and the two second connecting seats (19) are respectively rotatably connected to the adjacent side of the support seat (6) via a pin shaft, and a fourth spring (20) is fixedly connected to the opposite surface of each side of the second connecting seat (19) and the first connecting seat (16) for guiding the first connecting seat (16) to return to movement.

3. The injection molding machine for connecting the ends of communication cables according to claim 2, characterized in that: The support seat (6) is provided with an injection molding mechanism for performing injection molding on the interior of the first mold (2) and the second mold (8), the injection molding mechanism comprising a cavity (601) opened on the support seat (6), the top of the support seat (6) penetrating the inner wall of the cavity (601) and fixedly connected to the heating barrel (21), the bottom of the support seat (6) penetrating the inner wall of the cavity (601) and movably connected to a connecting pipe (22) for lifting and reciprocating movement, and the bottom end of the connecting pipe (22) penetrating the inner wall of the second mold (8) and fixedly connected.

4. The injection molding machine for connecting the ends of communication cables according to claim 3, characterized in that: The inner walls of the heating barrel (21) and the connecting pipe (22) close to one end of the support seat (6) are fixedly connected with a one-way liquid inlet valve (211) and a one-way liquid discharge valve (221) for quantitatively extracting or discharging the plastic fluid inside the heating barrel (21), and the outer contour of the top end of the connecting pipe (22) is fixedly connected with a piston plate (23) that is in contact with the inner wall of the cavity (601) and is movably connected.

5. The injection molding machine for connecting the ends of communication cables according to claim 3, characterized in that: The first mold (2) is provided with a lifting mechanism for demoulding the cable after injection molding on the inner wall of the first mold (2), the lifting mechanism comprising a cylindrical barrel (24) penetrating and fixedly connected to the first mold (2), the inner wall of the cylindrical barrel (24) being movably connected to a first piston rod (25) for lifting and reciprocating movement, the top end of the first piston rod (25) being fixedly connected to an arc block (26) for lifting the cable after injection molding inside the first mold (2), and the inner wall of the first mold (2) being provided with an arc groove (201) matching the outer contour of the arc block (26).

6. The injection molding machine for connecting the ends of communication cables according to claim 5, characterized in that: The cylindrical barrel (24) is penetrated and fixedly connected to cylindrical shells (27) at symmetrical positions on both sides near the bottom, and the inner walls of the two cylindrical shells (27) are fixedly connected to second piston rods (28), and one end of the second piston rod (28) on each side away from the cylindrical barrel (24) is fixedly connected to the first clamping plate (11).

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