Rotating rod main tower device suitable for rotating rod machine

Abstract

The utility model belongs to the technical field of pre-filling and sealing, and provides a rotating rod main tower device suitable for a rotating rod machine, which comprises a roller disc assembly and a push rod pressing assembly, the push rod pressing assembly is arranged above the roller disc assembly, and the push rod pressing assembly comprises a push rod clamping assembly and a push rod pre-pressing device. The push rod pressing assembly is connected with a lifting control device capable of controlling the push rod clamping assembly and the push rod pre-pressing device to ascend and descend synchronously. According to the rotating rod main tower device suitable for the rotating rod machine, the height of the push rod downward-pressing assembly located on the upper portion can be changed through the lifting device, so that the distance between the push rod downward-pressing assembly and the roller disc assembly is changed, the whole device can be compatible with push rods of different heights, and meanwhile the push rod downward-pressing assembly is additionally provided with a push rod pre-pressing device; the screw-in height of the push rod is unified, and the condition of over-screwing or under-screwing of the screw rod is prevented.

Description

Technical Field

[0001] The utility model relates to a rod rotating device, in particular to a rod rotating main tower device suitable for a rod rotating machine. Background Art

[0002] The rod rotating machine is a device used to assemble the injection tube and the push rod of the prefilled needle. The rod rotating main tower device is the core unit for assembling the two in the rod rotating machine. The existing rod rotating main tower device has the following defects:

[0003] 1. The distance between the push rod pressing assembly and the roller disc assembly cannot be adjusted, resulting in the device being incompatible with push rods of different heights;

[0004] 2. The push rod is pressed down by gravity, and the precision control is unstable, which can easily cause the rotating rod to be over-tightened or under-tightened. Utility Model Content

[0005] The utility model aims to overcome the existing defects and provide a rotating rod main tower device suitable for a rotating rod machine, so as to solve the problems that the current rotating rod main tower device is not compatible with push rods of different heights and that downward pressure easily causes the rotating rod to be over-tightened or under-tightened.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A rotating rod main tower device suitable for a rotating rod machine includes a roller disc assembly and a push rod pressing assembly, wherein the push rod pressing assembly is located above the roller disc assembly, the push rod pressing assembly includes a push rod clamping assembly and a push rod pre-pressing device, and the push rod pressing assembly is connected to a lifting control device capable of controlling the synchronous lifting and lowering of the push rod clamping assembly and the push rod pre-pressing device.

[0008] Furthermore, the roller disc assembly includes a bearing fixing seat, which is in the shape of a cylinder with upper and lower openings, the lower end of the bearing fixing seat is fixed on the frame, a first sleeve shaft is provided for rotating inside the bearing fixing seat, the upper end of the first sleeve shaft extends out of the bearing fixing seat and is connected to a turntable seat, and the lower end of the first sleeve shaft extends out of the bearing fixing seat and is connected to a first driving gear; a roller star plate is circumferentially arranged on the edge of the upper end surface of the turntable seat, a number of roller stations are evenly distributed on the outer edge of the roller star plate, and each of the roller stations is provided with two vertically parallel clamping rollers.

[0009] Furthermore, the push rod pressing assembly includes an inner shell and a second sleeve shaft, the inner shell is a cylinder with upper and lower openings, the lower end of the inner shell is fixedly connected to the upper end surface of the turntable seat, and the outer side surface of the inner shell is circumferentially provided with a plurality of vertically parallel vertical slide rails at equal intervals, and each of the vertical slide rails is provided with a vertical slot hole in parallel on its side; the second sleeve shaft is located inside the inner shell, and the outer side surface of the second sleeve shaft is circumferentially provided with a cam curve slide rail.

[0010] Furthermore, the push rod clamping assembly includes a plurality of clamping claw cam assemblies, each of the clamping claw cam assemblies includes a box body, the rear end face of the box body is provided with a slide groove, the box body is slidably connected to the inner shell body through the cooperation of the slide groove and the vertical slide rail, a limiting U-shaped frame is provided at the rear of the box body, the open end of the limiting U-shaped frame is fixedly connected to the side of the box body, the two arms of the limiting U-shaped frame respectively pass through two adjacent vertical slots and are slidably connected to the inner shell body, the closed end of the limiting U-shaped frame is connected to a limiting roller, and the limiting roller is rollingly connected to the cam curve slide rail.

[0011] Furthermore, the lifting control device includes a fixed seat, a lifting shaft is vertically penetrated through the fixed seat, and the lower end of the lifting shaft is sleeved with a second driving gear, which is rotationally limitedly connected to the fixed seat, that is, the second driving gear is fixed in a spatial position relative to the fixed seat but can rotate freely, and the lifting nut fixedly connected to the inner side of the second driving gear is threadedly connected to the lifting shaft, and the lower end of the lifting shaft slides or has a clearance fit with the fixed seat; the middle part of the lifting shaft slides or has a clearance fit with the first sleeve shaft, that is, the lifting shaft can move up and down in the first sleeve shaft and does not rotate synchronously with the first sleeve shaft; the upper end of the lifting shaft is fixedly connected to the second sleeve shaft, that is, the second sleeve shaft can be lifted and lowered synchronously with the lifting shaft.

[0012] Furthermore, a first clamping jaw rotating shaft and a second clamping jaw rotating shaft are vertically parallel to each other, a driving gear is sleeved on the first clamping jaw rotating shaft, and a driven gear is sleeved on the second clamping jaw rotating shaft, the driving gear and the driven gear are meshed with each other, the lower end of the first clamping jaw rotating shaft extends out of the box body and is connected to the rear end of the first push rod clamping jaw, the lower end of the second clamping jaw rotating shaft extends out of the box body and is connected to the rear end of the second push rod clamping jaw, and corresponding matching push rod clamping grooves are arranged on the relative inner side surfaces of the front ends of the first push rod clamping jaw and the second push rod clamping jaw; the upper end of the first clamping jaw rotating shaft extends out of the box body and is hinged to one end of the clamping jaw rotating swing arm, and the other end of the clamping jaw rotating swing arm is provided with a release bearing, and the part of the first clamping jaw rotating shaft located between the box body and the clamping jaw rotating swing arm is sleeved with a torsion spring.

[0013] Furthermore, the push rod clamping assembly includes a plurality of roller push-out assemblies, each of which includes a horizontal connecting plate, which is arranged at a position near the top of the upper end of the lifting shaft, and the inner end of the horizontal connecting plate is fixedly connected to the lifting shaft, that is, the horizontal connecting plate can be lifted and lowered synchronously with the lifting shaft, and the lower end of the outer end of the horizontal connecting plate is connected to an arc plate, which is located on the upper inner side of the box body, and the outer side surface of the lower end of the arc plate is provided with an outward push protrusion, and the position of the outward push protrusion corresponds to the release bearing located on its outer side.

[0014] Furthermore, the push rod clamping grooves are all V-shaped push rod clamping grooves.

[0015] Furthermore, the top of the lifting shaft is connected to an outer cover shell, and the outer cover shell includes a top plate and an outer edge side plate. The lower end surface of the top plate is connected to the top of the lifting shaft, and the outer side surface of the outer edge side plate is provided with a push rod pre-stressing device, and the push rod pre-stressing device is correspondingly arranged above the rotary rod docking station.

[0016] Furthermore, the push rod pre-stressing device includes a support seat, the inner end of the support seat is connected to the outer cover shell, the outer end of the support seat is connected to a lifting sleeve, a lifting inner rod is lockably slidably connected in the lifting sleeve, the lower end of the lifting inner rod is connected to a mounting seat, and a push rod pressing plate is provided at the lower end of the mounting seat.

[0017] The utility model discloses a rotating rod main tower device suitable for a rotating rod machine, wherein a push rod pressing assembly located at an upper portion can change its height by a lifting device, thereby changing the distance between the push rod pressing assembly and a roller disc assembly, so that the device as a whole can be compatible with push rods of different heights, and at the same time, a push rod pre-pressing device is added to the push rod pressing assembly to unify the screw-in height of the push rod, thereby preventing the rotating rod from being over-tightened or under-tightened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0020] Figure 2 yes Figure 1 A partial enlarged schematic diagram of

[0021] Figure 3 This is a schematic diagram of the front view of the utility model without the cover;

[0022] Figure 4 It is a side cross-sectional schematic diagram of the utility model without the cover;

[0023] Figure 5 It is a three-dimensional schematic diagram of the clamping claw cam assembly in the utility model;

[0024] Figure 6 It is a top view schematic diagram of the clamping jaw cam assembly in the utility model. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0026] like Figure 1-6 As shown, a rotating rod main tower device suitable for a rotating rod machine includes a roller disc assembly 1 and a push rod pressing assembly, the push rod pressing assembly is located above the roller disc assembly 1, the push rod pressing assembly includes a push rod clamping assembly and a push rod pre-pressing device 2, and the push rod pressing assembly is connected to a lifting control device that can control the push rod clamping assembly and the push rod pre-pressing device 2 to rise and fall synchronously.

[0027] The roller disc assembly 1 includes a bearing fixing seat 3, which is a cylindrical shape with upper and lower openings. The lower end of the bearing fixing seat 3 is fixed on a frame (not shown in the figure), and a first sleeve shaft 4 is rotatably sleeved inside the bearing fixing seat 3. The upper end of the first sleeve shaft 4 extends out of the bearing fixing seat 3 and is connected to a turntable seat 5. The lower end of the first sleeve shaft 4 extends out of the bearing fixing seat 3 and is connected to a first driving gear 6. A roller star plate 7 is circumferentially arranged on the edge of the upper end surface of the turntable seat 5, and a number of roller stations are evenly distributed on the outer edge of the roller star plate 7, and each roller station is provided with two vertically parallel clamping rollers 8.

[0028] The push rod pressing assembly includes an inner shell 9 and a second sleeve shaft 10. The inner shell 9 is a cylinder with openings at the top and bottom. The lower end of the inner shell 9 is fixedly connected to the upper end surface of the turntable seat 5. The outer side surface of the inner shell 9 is circumferentially provided with a plurality of vertically parallel vertical slide rails 11 at equal intervals, and a vertical slot hole 12 is parallelly provided on the side of each vertical slide rail 11; the second sleeve shaft 10 is located inside the inner shell 9, and the outer side surface of the second sleeve shaft 10 is circumferentially provided with a cam curve slide rail 13.

[0029] The push rod clamping assembly includes the same number of clamping claw cam assemblies 14 as the vertical slide rail 11, each clamping claw cam assembly 14 includes a box body 15, the rear end face of the box body 15 is provided with a slide groove, the box body 15 is slidably connected to the inner shell body 9 through the cooperation of the slide groove and the vertical slide rail 11, a limiting U-shaped frame 16 is provided at the rear of the box body 15, the open end of the limiting U-shaped frame 16 is fixedly connected to the side of the box body 15, the two arms of the limiting U-shaped frame 16 respectively pass through two adjacent vertical slots 12 and are slidably connected to the inner shell body 9, the closed end of the limiting U-shaped frame 16 is connected to a limiting roller 17, and the limiting roller 17 is rollingly connected to the cam curve slide rail 13.

[0030] The lifting control device includes a fixed seat 18, and a lifting shaft 19 is vertically penetrated by the fixed seat 18. The lower end of the lifting shaft 19 is sleeved with a second driving gear 20, and the second driving gear 20 is rotationally limitedly connected to the fixed seat 18, that is, the second driving gear 20 is fixed in a spatial position relative to the fixed seat 18 but can rotate freely, and the lifting nut fixedly connected to the inner side of the second driving gear 20 is threadedly connected to the lifting shaft 19, and the lower end of the lifting shaft 19 slides or has a clearance fit with the fixed seat 18; the middle part of the lifting shaft 19 slides or has a clearance fit with the first sleeve shaft 4, that is, the lifting shaft 19 can move up and down in the first sleeve shaft 4 and does not rotate synchronously with the first sleeve shaft 4; the upper end of the lifting shaft 19 is fixedly connected to the second sleeve shaft 10, that is, the second sleeve shaft 10 can be lifted and lowered synchronously with the lifting shaft 19.

[0031] A first clamping jaw rotating shaft 21 and a second clamping jaw rotating shaft 22 which are vertically parallel are arranged in the box body 15. A driving gear (not shown in the figure) is sleeved on the first clamping jaw rotating shaft 21, and a driven gear (not shown in the figure) is sleeved on the second clamping jaw rotating shaft 22. The driving gear and the driven gear are meshed with each other. The lower end of the first clamping jaw rotating shaft 21 extends out of the box body 15 and is connected to the rear end of the first push rod clamping jaw 23, and the lower end of the second clamping jaw rotating shaft 22 extends out of the box body 15 and is connected to the rear end of the second push rod clamping jaw 24. The opposite inner side surfaces of the front ends of the first push rod clamping jaw 23 and the second push rod clamping jaw 24 are provided with corresponding matching push rod clamping grooves; the upper end of the first clamping jaw rotating shaft 21 extends out of the box body 15 and is hinged to one end of a clamping jaw rotating swing arm 26, and the other end of the clamping jaw rotating swing arm 26 is provided with a release bearing 27, and the part of the first clamping jaw rotating shaft 21 located between the box body 15 and the clamping jaw rotating swing arm 26 is sleeved with a torsion spring 25.

[0032] The push rod clamping assembly includes three roller push-out assemblies, which are respectively arranged at the rotary rod loading station, the rotary rod docking station and the rotary rod discharging station. Each roller push-out assembly includes a horizontal connecting plate 28. The horizontal connecting plate 28 is arranged at the upper end of the lifting shaft 19 near the top. The inner end of the horizontal connecting plate 28 is fixedly connected to the lifting shaft 19, that is, the horizontal connecting plate 28 can be lifted and lowered synchronously with the lifting shaft 19. The lower end of the outer end of the horizontal connecting plate 28 is connected to an arc plate 29, and the arc plate 29 is located on the upper inner side of the box body 15. The outer side surface of the lower end of the arc plate 29 is provided with an outward push protrusion 30. The position of the outward push protrusion 30 corresponds to the release bearing 27 located on its outer side.

[0033] The push rod clamping grooves are all V-shaped push rod clamping grooves, which have a self-centering function when clamping round and quasi-round objects. Because the push rod is cross-shaped, when the push rod clamping claws clamp the push rod, the cross-shaped push rod is just stuck in the middle of the two V-shapes, and it is not easy to rotate.

[0034] The top of the lifting shaft 19 is connected to an outer cover shell 31, which includes a top plate and an outer edge side plate. The lower end surface of the top plate is connected to the top of the lifting shaft 19, and the outer side surface of the outer edge side plate is provided with a push rod pre-stressing device 2. The push rod pre-stressing device 2 is correspondingly arranged above the rotary rod docking station.

[0035] The push rod preloading device 2 includes a support seat 32, the inner end of the support seat 32 is connected to the outer cover shell 31, the outer end of the support seat 32 is connected to a lifting sleeve 33, a lifting inner rod 34 is lockably slidably connected in the lifting sleeve 33, the lower end of the lifting inner rod 34 is connected to a mounting seat 35, and the lower end of the mounting seat 35 is provided with a push rod pressing piece 36. The push rod pressing piece 36 is streamlined and extends from high to low in the discharge direction.

[0036] Lifting working principle:

[0037] The external drive device 1 (not shown in the figure) controls the rotation of the first drive gear, which can realize the rotation of the roller disc assembly, the inner shell and the clamping cam assembly, thereby realizing the conveying work before and after the injection tube and the push rod are assembled; when the length of the push rod changes, the external drive device 2 (not shown in the figure) controls the rotation of the second drive gear, and the lifting shaft rises or falls under the drive of the lifting nut fixedly connected to the second drive gear, thereby driving the second sleeve shaft, the roller push-out assembly and the outer cover shell to rise or fall, realizing the rise or fall of the clamping cam assembly and the push rod pre-stressing device, and then changing the distance between the clamping cam assembly and the push rod pre-stressing device and the roller disc assembly to meet the rotation and conveying work of push rods of different lengths.

[0038] Working principle of rotary rod:

[0039] A guardrail assembly A and a rotating drive device B are provided on the periphery of the roller star disk. The injection tube is continuously sent to the roller station from the injection tube loading station. The clamping claw cam assembly rotates synchronously with the inner shell and the roller star disk, and is lifted and lowered according to the station requirements along with the cam curve slide rail on the second set of shafts. When the clamping claw cam assembly reaches the rotary rod loading station, the clamping claw cam assembly is at the highest point, and the push-out protrusion pushes the release bearing outward, the driving gear rotates counterclockwise, and the driven gear rotates clockwise, and the two push rod clamps open outward, and the rotary rod is sent between the two push rod clamps. When the clamping claw cam assembly leaves the rotary rod loading station, the release bearing disengages from the push-out protrusion, and under the action of the torsion spring, the driving gear rotates clockwise, and the driven gear rotates counterclockwise, and the two push rod clamps clamp the rotary rod and send it to the rotary rod docking station; when the clamping claw cam assembly reaches the rotary rod docking station, the clamping claw cam assembly is at the lowest point, and the push-out protrusion releases the bearing outward The push rod is pushed (the thickness of the push-out protrusion is smaller than that of the other two stations), the two push rod jaws open slightly, and the rotary rod reaches the bottom of the push rod pressing plate (the height of the push rod pressing plate has been preset in advance according to the size requirements of the finished product), and the rotary rod enters the injection tube below under the action of the push rod pressing plate. During the entry process, the injection tube below rotates under the action of the rotating drive device, thereby realizing the cooperation between the push rod thread and the threaded hole of the injection tube plug, that is, completing the docking of the rotary rod. The height of the rotary rod after screwing in is consistent with the lowest point of the push rod pressing plate, which ensures the uniformity of the push rod screwing height and avoids under-tightening or over-tightening. The clamping claw cam assembly leaves the rotary rod docking station, clamps the docked finished product and sends it to the rotary rod unloading station. When the clamping claw cam assembly arrives at the rotary rod unloading station, the clamping claw cam assembly is still at the lowest point, and the push-out protrusion pushes the release bearing outward, and the two push rod clamping claws open outward. The docked finished product leaves the roller star disk and is sent to the next process.

[0040] The utility model discloses a rotating rod main tower device suitable for a rotating rod machine, wherein a push rod pressing assembly located at an upper portion can change its height by a lifting device, thereby changing the distance between the push rod pressing assembly and a roller disc assembly, so that the device as a whole can be compatible with push rods of different heights, and at the same time, a push rod pre-pressing device is added to the push rod pressing assembly to unify the screw-in height of the push rod, thereby preventing the rotating rod from being over-tightened or under-tightened.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rod rotating main tower device suitable for a rod rotating machine, characterized in that: It includes a roller disc assembly and a push rod pressing assembly, wherein the push rod pressing assembly is located above the roller disc assembly, the push rod pressing assembly includes a push rod clamping assembly and a push rod pre-pressing device, and the push rod pressing assembly is connected to a lifting control device capable of controlling the synchronous lifting and lowering of the push rod clamping assembly and the push rod pre-pressing device.

2. A rod rotating main tower device suitable for a rod rotating machine according to claim 1, characterized in that: The drum disc assembly includes a bearing fixing seat, the bearing fixing seat is a cylindrical shape with upper and lower openings, the lower end of the bearing fixing seat is fixed to the frame, a first sleeve shaft is rotatably sleeved inside the bearing fixing seat, the upper end of the first sleeve shaft extends out of the bearing fixing seat and is connected to the turntable seat, and the lower end of the first sleeve shaft extends out of the bearing fixing seat and is connected to the first driving gear; A roller star plate is circumferentially arranged on the edge of the upper end surface of the turntable seat, and a plurality of roller stations are evenly distributed on the outer edge of the roller star plate, and each of the roller stations is provided with two vertically parallel clamping rollers.

3. A rod rotating main tower device suitable for a rod rotating machine according to claim 2, characterized in that: The push rod pressing assembly comprises an inner shell and a second sleeve shaft, the inner shell is a cylindrical shape with upper and lower openings, the lower end of the inner shell is fixedly connected to the upper end surface of the turntable seat, and the outer side surface of the inner shell is circumferentially provided with a plurality of vertical parallel vertical slide rails at equal intervals, and a vertical slot hole is parallelly provided on the side of each vertical slide rail; The second sleeve shaft is located inside the inner housing, and a cam curve slide rail is circumferentially arranged on the outer side surface of the second sleeve shaft.

4. A rod rotating main tower device suitable for a rod rotating machine according to claim 3, characterized in that: The push rod clamping assembly includes a plurality of clamping claw cam assemblies, each of the clamping claw cam assemblies includes a box body, a rear end face of the box body is provided with a slide groove, the box body is slidably connected to the inner shell body through the cooperation of the slide groove and the vertical slide rail, a limiting U-shaped frame is provided at the rear of the box body, the open end of the limiting U-shaped frame is fixedly connected to the side of the box body, the two arms of the limiting U-shaped frame respectively pass through two adjacent vertical slots and are slidably connected to the inner shell body, the closed end of the limiting U-shaped frame is connected to a limiting roller, and the limiting roller is rollingly connected to the cam curve slide rail.

5. A rod rotating main tower device suitable for a rod rotating machine according to claim 4, characterized in that: The lifting control device comprises a fixed seat, a lifting shaft is vertically penetrated through the fixed seat, a second driving gear is sleeved on the lower end of the lifting shaft, and the second driving gear is rotationally limitedly connected with the fixed seat, that is, the second driving gear is fixed in a spatial position relative to the fixed seat but can rotate freely, a lifting nut fixedly connected to the inner side of the second driving gear is threadedly connected with the lifting shaft, and the lower end of the lifting shaft is slidably or clearance-matched with the fixed seat; The middle part of the lifting shaft is slidably or clearance-matched with the first sleeve shaft, that is, the lifting shaft can move up and down in the first sleeve shaft and does not rotate synchronously with the first sleeve shaft; The upper end of the lifting shaft is fixedly connected to the second sleeve shaft, that is, the second sleeve shaft can be lifted and lowered synchronously with the lifting shaft.

6. A rod rotating main tower device suitable for a rod rotating machine according to claim 5, characterized in that: The box body is provided with a first clamping jaw rotating shaft and a second clamping jaw rotating shaft which are vertically parallel, the first clamping jaw rotating shaft is sleeved with a driving gear, the second clamping jaw rotating shaft is sleeved with a driven gear, the driving gear and the driven gear are meshed with each other, the lower end of the first clamping jaw rotating shaft extends out of the box body and is connected to the rear end of the first push rod clamping jaw, the lower end of the second clamping jaw rotating shaft extends out of the box body and is connected to the rear end of the second push rod clamping jaw, and the opposite inner side surfaces of the front ends of the first push rod clamping jaw and the second push rod clamping jaw are provided with corresponding matching push rod clamping grooves; The upper end of the first clamping jaw rotating shaft extends out of the box body and is hinged to one end of a clamping jaw rotating swing arm, the other end of the clamping jaw rotating swing arm is provided with a release bearing, and the part of the first clamping jaw rotating shaft located between the box body and the clamping jaw rotating swing arm is sleeved with a torsion spring.

7. A rod rotating main tower device suitable for a rod rotating machine according to claim 6, characterized in that: The push rod clamping assembly includes a plurality of roller push-out assemblies, each of which includes a horizontal connecting plate, which is arranged at a position near the top of the upper end of the lifting shaft, and the inner end of the horizontal connecting plate is fixedly connected to the lifting shaft, that is, the horizontal connecting plate can be lifted and lowered synchronously with the lifting shaft, and the lower end of the outer end of the horizontal connecting plate is connected to an arc plate, which is located on the upper inner side of the box body, and the outer side surface of the lower end of the arc plate is provided with an outward push protrusion, and the position of the outward push protrusion corresponds to the release bearing located on its outer side.

8. The main tower device for a rod rotating machine according to claim 6, characterized in that: The push rod clamping grooves are all V-shaped push rod clamping grooves.

9. The main tower device for a rod rotating machine according to claim 5, characterized in that: The top of the lifting shaft is connected to an outer cover shell, which includes a top plate and an outer edge side plate. The lower end surface of the top plate is connected to the top of the lifting shaft. The outer side surface of the outer edge side plate is provided with a push rod pre-stressing device, and the push rod pre-stressing device is correspondingly arranged above the rotary rod docking station.

10. A rod rotating main tower device suitable for a rod rotating machine according to claim 9, characterized in that: The push rod pre-stressing device includes a support seat, the inner end of the support seat is connected to the outer cover shell, the outer end of the support seat is connected to a lifting sleeve, a lifting inner rod is slidably connected in a lockable manner in the lifting sleeve, the lower end of the lifting inner rod is connected to a mounting seat, and a push rod pressing plate is arranged at the lower end of the mounting seat.

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