A kind of wire card pre-folding device with auxiliary stripping function

Abstract

The present invention belongs to the technical field of shield machine manufacturing, and relates to a wire card pre-folding device with an auxiliary stripping function, including a machine platform, a pre-folding platform located on the machine platform, and a pressing device, the pressing device including a frame, a pressure head that can be vertically lifted and lowered on the frame, and a pressing plate arranged at the bottom of the pressure head, the pre-folding platform has a pressing groove that can be extended by the pressing plate, a fixed frame, a striker that can be horizontally extended and retracted in the fixed frame, a cushion block located at the outer end of the striker, and a first spring sandwiched between the fixed frame and the cushion block are arranged on one side of the pressure groove, a hanging frame, a pendulum connected to the hanging frame at the tail end, and a fixed pulley pivoted on the hanging frame are arranged on the frame, a sling is fixed on one side of the pressure head, the sling crosses the top of the fixed pulley and is connected to the middle of the pendulum, and when the pressure head rises, the pendulum swings down to hit the striker and knocks the wire card in the pressing groove out of the pre-folding platform. The present invention can alternately complete the pre-folding and stripping of the wire card at a fast pace, and has high production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of shield machine manufacturing, and in particular to a wire card pre-folding device with an auxiliary material stripping function. Background Art

[0002] The shield machine, whose full name is shield tunnel boring machine, is a special engineering machinery for tunnel excavation. Modern shield tunnel boring machines integrate optical, mechanical, electrical, hydraulic, sensor and information technology. They have the functions of excavating and cutting soil and rock, conveying soil and ballast, assembling tunnel lining, measuring and guiding deviation correction, etc. They involve multiple disciplines and technologies such as geology, civil engineering, machinery, mechanics, hydraulics, electricity, control, and measurement. Moreover, they must be designed and manufactured in a "tailor-made" manner according to different geology, and the reliability requirements are extremely high. Shield tunnel boring machines have been widely used in tunnel projects such as subways, railways, highways, municipal administration, and hydropower.

[0003] The shield tail brush is a component that prevents mud and water from seeping into the tail of the shield machine. It is generally composed of a pressure rod, a wire bundle folded in half around the pressure rod, and a wire clip that clamps and fixes the wire bundle. The wire clip is a U-shaped part that needs to be pre-folded into an open U-shaped state with a sheet, and then clamped on the wire bundle to tighten and fix it. The pre-folding will be carried out on a pre-folding table with a pressing groove, and the sheet will be pressed into the pressing groove with a pressing plate to form the shape of the wire clip. Because the deformation of the wire clip has stress, the rebound of the material after pre-folding will cause it to be stuck in the pressing groove, causing trouble for material removal and restricting the improvement of processing efficiency.

[0004] Therefore, it is necessary to improve the structure of the wire card pre-folding device to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a wire card pre-folding device with an auxiliary stripping function, which can enable the wire card to be stripped quickly after the pre-folding is completed.

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: a wire card pre-folding equipment with auxiliary material stripping function, including a machine platform, a pre-folding platform located on the machine platform and a pressing device, the pressing device including a frame, a pressure head that can be vertically lifted and lowered on the frame and a pressing plate arranged at the lower part of the pressure head, the pre-folding platform has a pressing groove that can be extended by the pressing plate, one side of the pressing groove is provided with a fixed frame, a hitter that can be horizontally extended and retracted in the fixed frame, a pad located at the outer end of the hitter and a first spring clamped between the fixed frame and the pad, the frame is provided with a hanging frame, a pendulum whose tail is rotatably connected to the hanging frame, and a fixed pulley pivotally connected to the hanging frame, a sling is fixed to one side of the pressure head, the sling crosses over the fixed pulley and is connected to the middle part of the pendulum, when the pressure head rises, the pendulum swings down to hit the hitter and knocks the wire card in the pressing groove out of the pre-folding platform.

[0007] Specifically, a positioning groove for positioning the sheet is provided on the upper portion of the pressing groove.

[0008] Specifically, a stop structure is provided at the inner end of the striker for preventing the striker from being separated from the fixing frame.

[0009] Specifically, a guide plate of a V-shaped structure is provided at the outer end of the hanger, and the guide plate can allow the pendulum to return to the middle position of the V-shaped structure when swinging upward.

[0010] Specifically, the bracket is provided with a first convex point, the pendulum is provided with a second convex point, the rotating shaft of the pendulum is provided with a first torsion spring, and the two ends of the first torsion spring respectively abut against the first convex point and the second convex point, and make the pendulum tend to swing downward.

[0011] Specifically, a safety device is also provided on the hanging bracket, and the safety device includes a support frame located above the hanging bracket, a hook rotatably connected to the support frame, and a trigger assembly arranged between the hook and the pressure head. The pressure head is provided with a trigger block with an upward inclined surface, and the pendulum is provided with a safety hook that can be hooked by the hook. When the trigger block contacts the trigger assembly, the trigger assembly can make the hook swing and disengage the safety hook.

[0012] Furthermore, the support frame is provided with a front limit plate on the side close to the pressure head, and the hanging bracket is provided with a rear limit plate on the side close to the pressure head. The trigger assembly includes a striker rod horizontally passing through the front limit plate and the rear limit plate, a convex shaft passing through the middle of the striker rod, and a second spring clamped between the front limit plate and the convex shaft, one end of the striker rod is close to the hook, and the other end is close to the pressure head.

[0013] Furthermore, a second torsion spring is provided on the rotating shaft of the hook, a third protrusion is provided on the inner side of the support frame, and a fourth protrusion is provided on the hook. The two ends of the second torsion spring respectively abut against the third protrusion and the fourth protrusion and make the hook tend to lean against the front limit plate.

[0014] The beneficial effects of the technical solution of the present invention are:

[0015] The invention can alternately complete the pre-folding and forming of the wire card and the knocking out and stripping of the wire card in a fast rhythm, and has high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional diagram of the wire card pre-folding device in the embodiment in the pre-folded state;

[0017] Figure 2 It is a three-dimensional diagram of the wire card pre-folding device in the embodiment in the material stripping state;

[0018] Figure 3 for Figure 2 A partial enlarged view of position A in the middle;

[0019] Figure 4 It is a three-dimensional picture of the pre-folding table;

[0020] Figure 5 It is a partial front view of the stripping component during pre-folding;

[0021] Figure 6 It is a partial front view of the stripping part during stripping.

[0022] The numbers in the figure represent:

[0023] 1-Machine;

[0024] 2-pre-folding table, 21-pressing groove, 22-positioning groove, 23-fixing frame, 24-impact, 25-cushion block, 26-first spring, 27-stop structure;

[0025] 3-pressing device, 31-frame, 32-pressing head, 321-trigger block, 33-pressing plate, 34-hanging bracket, 341-guide plate, 35-pendulum, 351-safety hook, 36-fixed pulley, 37-sling, 38-first torsion spring;

[0026] 4-safety device, 41-support frame, 42-front limit plate, 43-rear limit plate, 44-trigger assembly, 441-strike rod, 442-convex shaft, 443-second spring, 45-hook, 46-second torsion spring. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to specific embodiments.

[0028] Example:

[0029] like Figures 1 to 6As shown, a wire card pre-folding device with auxiliary stripping function includes a machine platform 1, a pre-folding platform 2 located on the machine platform 1 and a material pressing device 3, the material pressing device 3 includes a frame 31, a pressing head 32 that can be vertically lifted and lowered on the frame 31, and a pressing plate 33 arranged at the lower part of the pressing head 32, the pre-folding platform 2 has a pressing groove 21 that can be inserted into by the pressing plate 33, one side of the pressing groove 21 is provided with a fixing frame 23, a striker 24 that can be horizontally extended and retracted in the fixing frame 23, and a striker 24 located at the outer end of the striker 23. The frame 31 is provided with a hanger 34, a pendulum 35 whose tail is rotatably connected to the hanger, and a fixed pulley 36 pivotally connected to the hanger 34. A sling 37 is fixed to one side of the pressure head 32. The sling 37 passes over the fixed pulley 36 and is connected to the middle of the pendulum 35. When the pressure head 32 rises, the pendulum 35 swings down to hit the striker 25 and knocks the wire card in the pressure groove 21 out of the pre-folding table 2. The fixed pulley 36 allows the pressure head 32 and the pendulum 35 at both ends of the sling 37 to rise and fall alternately. The working principle of the equipment is as follows: the sheet is first positioned on the pre-folding table 2, and when the pressure head 32 descends, the pressing plate 33 bends the sheet into a wire clip, and at the same time, the sling 37 is pulled by the pressure head 32 to raise the pendulum 35; when the pressure head 32 rises, the pressing plate 33 releases the wire clip, the sling 37 is loosened, and the pendulum 35 falls, hitting the striker 24 from the outer end of the striker 24, and the inner end of the striker 24 will hit the wire clip from the side, causing it to fly out of the pre-folding table 2 from the other side of the pressing groove 21; the pre-folding table 2 can prevent another sheet from being pressed again by the pressure head 32, and the first spring 26 will allow the striker 24 to withdraw from the pressing groove 21, so as to avoid the deformation space of the sheet; the above process cycle can realize the continuous work of wire clip pre-folding and knocking out, with a fast working rhythm and high production efficiency.

[0030] like Figure 4 As shown, a positioning groove 22 for positioning the sheet is provided on the upper part of the pressing groove 21. The positioning groove 22 can fix the relative position of the sheet and the pre-folding table 2, ensuring that the pressing plate 33 can be pressed on the middle part of the sheet.

[0031] like Figure 4 As shown, the inner end of the striker 23 is provided with a stop structure 26 for preventing the striker 23 from being separated from the fixing frame 22. The first spring 26 will make the striker 23 tend to pop out when no other external force is applied, but the outer end of the striker 23 must be located at the striking position of the pendulum 35 for the device to work continuously, so the stop structure 26 is needed to maintain the position.

[0032] like Figure 4 As shown, a V-shaped guide plate 341 is provided at the outer end of the hanger 34, and the guide plate 341 can make the pendulum 35 return to the middle position of the V-shaped structure when it swings upward. When stripping, the pendulum 35 will naturally swing down due to gravity, and the V-shaped guide plate 341 will limit the initial position of the pendulum 35 within a relatively precise range, preventing the pendulum 35 from not falling into place and causing stripping failure.

[0033] like Figure 3 As shown, the hanger 34 is provided with a first convex point, the pendulum 35 is provided with a second convex point, and the rotating shaft of the pendulum 35 is provided with a first torsion spring 38. The two ends of the first torsion spring 38 respectively abut against the first convex point and the second convex point, and make the pendulum 35 have a tendency to swing down. When the sling 37 pulls up the pendulum 35, the first torsion spring 38 can store force for the pendulum 35, so that when the sling 37 is relaxed, the pendulum 35 can generate a greater impact force to help the wire card to be removed.

[0034] like Figure 3 As shown, the bracket 34 is also provided with a safety device 4, which includes a support frame 41 located above the bracket, a hook 42 rotatably connected to the support frame 41, and a trigger assembly 44 provided between the hook 42 and the pressure head 32. The pressure head 32 is provided with a trigger block 321 with an inclined surface facing upward, and the pendulum 35 is provided with a safety hook 351 that can be hooked by the hook 45. When the trigger block 321 contacts the trigger assembly 44, the trigger assembly 44 can make the hook 43 swing and unhook the safety hook 351. Before the pendulum 35 needs to fall, the hook 45 will hook the safety hook 351 until the trigger block 321 contacts the trigger assembly 44 and pushes the hook 45 away. In this way, the pendulum 35 can be prevented from accidentally falling and injuring people, making work safer.

[0035] like Figure 3 , Figure 5 and Figure 6 As shown, the support frame 41 is provided with a front limit plate 42 on the side close to the pressure head 32, the hanger 34 is provided with a rear limit plate 43 on the side close to the pressure head 32, and the trigger assembly 44 includes a striker 441 horizontally passing through the front limit plate 42 and the rear limit plate 43, a convex shaft 442 passing through the middle of the striker 441, and a second spring 443 clamped between the front limit plate 42 and the convex shaft 442, one end of the striker 441 is close to the hook 45, and the other end is close to the pressure head 32. The second spring 443 will keep the striker 441 away from the hook 45 until the trigger block 321 contacts the striker 441, so that the timing of the pendulum 35 unhooking and unloading can be automatically controlled.

[0036] like Figure 3 , Figure 5 and Figure 6 As shown, a second torsion spring 46 is provided on the rotating shaft of the hook 45, a third convex point is provided on the inner side of the support frame 41, and a fourth convex point is provided on the hook 45. The two ends of the second torsion spring 46 respectively abut against the third convex point and the fourth convex point and make the hook 45 tend to lean against the front limit plate 42. The second torsion spring 46 can make the hook 45 tend to swing down. When the pendulum 35 rises, the safety hook 351 will automatically squeeze the hook 45 and then hang on the hook 45, so that the trouble of manual insurance can be avoided.

[0037] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A wire card pre-folding device with auxiliary stripping function, comprising a machine platform, a pre-folding platform located on the machine platform and a material pressing device, wherein the material pressing device comprises a frame, a pressing head capable of vertically ascending and descending on the frame, and a pressing plate arranged below the pressing head, wherein the pre-folding platform has a pressing groove capable of being extended by the pressing plate, and wherein: A fixing frame, a striker that can be horizontally extended and retracted in the fixing frame, a cushion block located at the outer end of the striker, and a first spring sandwiched between the fixing frame and the cushion block are provided on one side of the pressing groove; a hanging frame, a pendulum whose tail is rotatably connected to the hanging frame, and a fixed pulley pivotally connected to the hanging frame are provided on the frame body; a sling is fixed on one side of the pressing head, the sling passes over the fixed pulley and is connected to the middle part of the pendulum; when the pressing head rises, the pendulum swings down to hit the striker and knocks the wire card in the pressing groove out of the pre-folding table; The rack is also provided with a safety device, which includes a support frame located above the rack, a hook rotatably connected to the support frame, and a trigger assembly arranged between the hook and the pressure head, the pressure head is provided with a trigger block with an inclined upward surface, the pendulum is provided with a safety hook that can be hooked by the hook, and when the trigger block contacts the trigger assembly, the trigger assembly can make the hook swing and disengage the safety hook; The support frame is provided with a front limit plate on the side close to the pressure head, and the hanger is provided with a rear limit plate on the side close to the pressure head. The trigger assembly includes a striker horizontally passing through the front limit plate and the rear limit plate, a convex shaft passing through the middle of the striker, and a second spring clamped between the front limit plate and the convex shaft, one end of the striker is close to the hook, and the other end is close to the pressure head; A second torsion spring is provided on the rotating shaft of the hook, a third protrusion is provided on the inner side of the support frame, and a fourth protrusion is provided on the hook. Both ends of the second torsion spring respectively abut against the third protrusion and the fourth protrusion and make the hook tend to lean against the front limit plate.

2. The wire card pre-folding device with auxiliary stripping function according to claim 1 is characterized in that: A positioning groove for positioning the sheet is provided on the upper part of the pressing groove.

3. The wire card pre-folding device with auxiliary stripping function according to claim 1 is characterized in that: The inner end of the striker is provided with a stop structure for preventing the striker from being separated from the fixing frame.

4. The wire card pre-folding device with auxiliary stripping function according to claim 1 is characterized in that: The outer end of the hanging bracket is provided with a guide plate of a V-shaped structure, and the guide plate can make the pendulum return to the middle position of the V-shaped structure when swinging upward.

5. The wire card pre-folding device with auxiliary stripping function according to claim 1 is characterized in that: The bracket is provided with a first convex point, the pendulum is provided with a second convex point, the rotating shaft of the pendulum is provided with a first torsion spring, the two ends of the first torsion spring respectively abut against the first convex point and the second convex point, and make the pendulum have a tendency to swing downward.

Images