An inner rod mounting mechanism of a synchronous installation sheath

CN224879888UActive Publication Date: 2026-10-23ZHEJIANG SIMAITOU TECH CO LTD
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Patent Information

Application Number
CN202522365598.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-07
Publication Date
2026-10-23
Estimated Expiration
2035-11-07

AI Technical Summary

Technical Problem

这种生产方式会增加生产步骤,降低生产效率,增加生产成本

Benefits of technology

[0025]本实用新型相比现有技术突出且有益的技术效果是:先将护套从护套滑板的定位缺口进入,然后护套气缸带动护套滑板滑动,使护套从定位缺口进入到护套定位槽内,由于护套定位槽设置在内杆定位槽前方且连通,因此在推杆将内杆往笔壳内推动过程中,会先穿上护套,然后再进入笔壳,从而实现在安装内杆的同时完成对护套的安装,减少了工位和步骤,提高了生产效率。

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Abstract

The present application belongs to the field of pen production equipment, and relates to an inner rod installation mechanism for synchronously installing a sheath, wherein a rack is provided with an inner rod feeding channel, the discharge end of the inner rod feeding channel is provided with an inner rod limiting groove, the front of the inner rod limiting groove is provided with an installation positioning plate, the installation positioning plate is provided with an inner rod positioning groove, the rear of the inner rod positioning groove is provided with a push rod and a push rod driving device, the front of the inner rod positioning groove is also provided with a sheath positioning groove and is communicated with the sheath positioning groove, the side of the sheath positioning groove is provided with a sheath sliding groove and is communicated with the sheath sliding groove, the sheath sliding groove is provided with a sheath sliding plate, the sheath sliding plate is provided with a positioning gap for the sheath to enter, the installation positioning plate is also provided with a sheath cylinder, the output end of the sheath cylinder is connected with the sheath sliding plate and drives the sheath sliding plate to slide in the direction of the sheath positioning groove, so that the positioning gap is moved to the sheath positioning groove; the device has the advantages of installing the sheath while installing the inner rod, thereby reducing the workstations and steps and improving the production efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of pen manufacturing equipment and relates to an inner rod installation mechanism for synchronously installing a protective sleeve. Background Technology

[0002] Traditional pens with an inner barrel and a protective sleeve are manufactured by first fitting the protective sleeve onto the inner barrel and then pushing the inner barrel into the pen casing. This production method increases the number of steps, reduces production efficiency, and increases production costs. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides an inner rod installation mechanism for simultaneous installation of sheaths. This device has the advantage of installing sheaths while installing inner rods, thereby reducing workstations and steps and improving production efficiency.

[0004] The objective of this invention is achieved as follows:

[0005] An inner rod installation mechanism for synchronously installing a protective sleeve includes a frame, an inner rod feeding channel on the frame, an inner rod limiting groove at the discharge end of the inner rod feeding channel, the inner rod limiting groove opening horizontally forward, an installation positioning plate in front of the inner rod limiting groove, an inner rod positioning groove on the installation positioning plate, the inner rod positioning groove opening upward, a push rod behind the inner rod positioning groove, and a push rod driving device driving the push rod to move back and forth into the inner rod positioning groove; and an inner rod retrieval device for removing the inner rod from the inner rod limiting groove and transporting it to the inner rod positioning groove.

[0006] The inner rod positioning groove is also provided with a sleeve positioning groove in front of it and is connected to it. The side of the sleeve positioning groove is provided with a sleeve sliding groove and is connected to it. The sleeve sliding groove is provided with a sleeve sliding plate. The sleeve sliding plate is provided with a positioning notch for the sleeve to enter. The mounting positioning plate is also provided with a sleeve cylinder. The output end of the sleeve cylinder is connected to the sleeve sliding plate and drives the sleeve sliding plate to slide towards the sleeve positioning groove, so that the positioning notch moves onto the sleeve positioning groove.

[0007] With the above setup, the sheath first enters through the positioning notch of the sheath slide plate. Then, the sheath cylinder drives the sheath slide plate to slide, allowing the sheath to enter the sheath positioning groove from the positioning notch. Since the sheath positioning groove is located in front of and connected to the inner rod positioning groove, the sheath will be put on first and then enter the pen shell during the process of the push rod pushing the inner rod into the pen shell. This allows the installation of the sheath to be completed at the same time as the installation of the inner rod, reducing work stations and steps and improving production efficiency.

[0008] The present invention is further configured such that: the inner rod taking device includes a linear module, a steering plate is provided on one side of the linear module, an L-shaped groove is provided on the steering plate, a steering seat is provided at the upper end of the linear module, a rotating shaft is rotatably arranged in the steering seat, a steering block is fixedly connected to one end of the rotating shaft near the steering plate, and a pulley is also connected to the steering block at a position off the axis of the rotating shaft, the pulley is arranged on the side of the steering block facing the steering plate, and the pulley is slidably arranged in the L-shaped groove; an opening and closing cylinder is fixedly connected to the other end of the rotating shaft facing away from the steering plate, and a mechanical clamp is provided at the output end of the opening and closing cylinder, the opening and closing cylinder drives the mechanical clamp to perform opening and closing clamping actions.

[0009] With the above settings, the inner rod retrieval device flips the inner rod in the facing inner rod limiting groove, rotates it 90 degrees, and moves it to the facing inner rod positioning groove. This method can increase space utilization.

[0010] The present invention is further configured such that: a sheath relief groove is provided on the other side of the sheath positioning groove relative to the sheath sliding groove, and a pressure plate is provided above the sheath relief groove.

[0011] By setting the sheath clearance groove, the sheath slide can enter the sheath clearance groove and be pressed down by the pressure plate when the sheath is being transported, thereby increasing the stability of the sheath slide movement.

[0012] The present invention is further configured such that: an opening plate is provided in front of the sheath positioning groove, the opening plate includes a hinge end and an opening end, the hinge end is rotatably connected to the mounting positioning plate, the opening end is disposed in the sheath positioning groove, and the lower end of the opening end is provided with an opening inclined groove.

[0013] The above settings make the sheath more stable after entering the sheath positioning groove. When the push rod pushes the inner rod forward, it first provides a certain resistance to the sheath so that the sheath can fit better on the inner rod. Then the opening end opens and the inner rod enters the pen shell.

[0014] The present invention is further configured such that the lower end face of the opening inclined groove is spaced apart from the bottom of the sheath positioning groove, and the distance is less than the height of the sheath in the sheath positioning groove.

[0015] The above settings make it easier to open the control panel and prevent jamming.

[0016] The present invention is further configured such that: the mounting positioning plate is provided with a plurality of pressing grooves, and a pressing rod is slidably arranged in the pressing grooves, and the pressing rod is fixedly connected to the push rod driving device.

[0017] With the above setup, as the pen case is transported forward, it can be further pressed and secured after the inner rod is installed.

[0018] The present invention is further configured such that: the push rod driving device includes a drive plate, the drive plate is fixedly connected to the push rod, and also includes a drive cylinder, the output end of the drive cylinder being fixedly connected to the drive plate.

[0019] The present invention is further configured such that: the push rod driving device includes a drive plate, the drive plate is fixedly connected to the push rod, the rear end of the drive plate is connected to a linkage plate, the linkage plate is rotatably connected to a coupling, the other end of the coupling is connected to a cam mechanism, and the cam mechanism drives the drive plate to make back-and-forth reciprocating motion.

[0020] With the above settings, it can be linked with the drive devices at other workstations on the production line, improving synchronization and reducing the use of cylinders, thus lowering costs.

[0021] The present invention is further configured such that: the inner rod limiting groove includes a limiting seat fixed to the discharge end, and four limiting claws are rotatably arranged on the limiting seat. The two limiting claws are divided into two groups, and the limiting claws of each group are arranged on both sides of the inner rod limiting groove. The opposite ends of the two limiting claws extend into the inner rod limiting groove to form limiting ends. The limiting claws are connected to springs, and the springs always provide a force to the limiting ends of the limiting claws to move into the inner rod limiting groove.

[0022] With the above settings, when no mechanical clamp pulls out the inner rod, the limiting claw will block the inner rod to prevent it from sliding out, thus allowing the inner rods to enter the inner rod limiting groove in an orderly manner, waiting for the mechanical clamp to clamp them out one by one.

[0023] The present invention is further configured such that: the limiting end has a transition arc surface on the side facing the feeding channel.

[0024] The use of a transitional curved surface can protect the surface of the sheath and effectively reduce the risk of scratches.

[0025] The outstanding and beneficial technical effects of this utility model compared with the prior art are as follows: First, the sheath enters through the positioning notch of the sheath slide plate. Then, the sheath cylinder drives the sheath slide plate to slide, so that the sheath enters the sheath positioning groove from the positioning notch. Since the sheath positioning groove is located in front of and connected to the inner rod positioning groove, the sheath will be put on first and then enter the pen shell when the push rod pushes the inner rod into the pen shell. Thus, the installation of the sheath is completed at the same time as the installation of the inner rod, reducing the number of work stations and steps and improving production efficiency. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model.

[0028] Figure 2 A schematic diagram of the structure for installing the positioning plate and push rod drive device.

[0029] Figure 3 A schematic diagram of the structure for installing the positioning plate and the protective sleeve cylinder.

[0030] Figure 4 This is a structural diagram for installing the positioning plate.

[0031] Figure 5 This is a schematic diagram of the device for removing the inner rod.

[0032] Figure 6 This is a schematic diagram of the limit seat.

[0033] 0-Inner rod; 1-Sheath; 100-Pen shell; 2-Inner rod feeding channel; 3-Inner rod limiting groove; 4-Mounting positioning plate; 5-Inner rod positioning groove; 6-Push rod; 7-Sheath positioning groove; 8-Sheath sliding groove; 9-Sheath sliding plate; 10-Positioning notch; 11-Sheath cylinder; 12-Linear module; 13-Steering plate; 14-L-shaped groove; 15-Steering seat; 16-Rotating shaft; 17-Steering block; 18-Pulley; 19-Opening and closing cylinder; 20-Mechanical clamp; 21-Sheath clearance groove; 22-Pressure plate; 23-Opening plate; 24-Hinged end; 25-Opening end; 26-Opening inclined groove; 27-Pressure groove; 28-Pressure rod; 29-Drive plate; 30-Linkage plate; 31-Coupling; 32-Limiting seat; 33-Limiting claw; 34-Limiting end; 35-Transition arc surface. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0035] An inner rod installation mechanism for synchronously installing sheaths includes a frame, an inner rod feeding channel 2 on the frame, an inner rod limiting groove 3 at the discharge end of the inner rod feeding channel 2, the inner rod limiting groove 3 opening horizontally forward, an installation positioning plate 4 in front of the inner rod limiting groove 3, an inner rod positioning groove 5 on the installation positioning plate 4, the inner rod positioning groove 5 opening upward, a push rod 6 behind the inner rod positioning groove 5, and a push rod driving device driving the push rod 6 to move back and forth into the inner rod positioning groove 5; and an inner rod retrieval device for removing the inner rod 0 from the inner rod limiting groove 3 and transporting it to the inner rod positioning groove 5.

[0036] The inner rod positioning groove 5 is also provided with a protective sleeve positioning groove 7 in front and is connected to it. The side of the protective sleeve positioning groove 7 is provided with a protective sleeve sliding groove 8 and is connected to it. The protective sleeve sliding groove 8 is provided with a protective sleeve sliding plate 9. The protective sleeve sliding plate 9 is provided with a positioning notch 10 for the protective sleeve to enter. The mounting positioning plate 4 on the positioning notch is also provided with a protective sleeve cylinder 11. The output end of the protective sleeve cylinder 11 is connected to the protective sleeve sliding plate 9 and drives the protective sleeve sliding plate 9 to slide towards the protective sleeve positioning groove 7, so that the positioning notch 10 moves onto the protective sleeve positioning groove 7.

[0037] With the above setup, the sheath 1 is first inserted through the positioning notch 10 of the sheath slide plate 9. Then, the sheath cylinder 11 drives the sheath slide plate 9 to slide, so that the sheath 1 enters the sheath positioning groove 7 from the positioning notch 10. Since the sheath positioning groove 7 is located in front of and connected to the inner rod positioning groove 5, the sheath 1 will be put on first and then enter the pen shell 100 when the push rod 6 pushes the inner rod 0 into the pen shell. This allows the installation of the sheath 1 to be completed at the same time as the installation of the inner rod 0, reducing work stations and steps and improving production efficiency.

[0038] The inner rod removal device includes a linear module 12. A steering plate 13 is provided on one side of the linear module, and an L-shaped groove 14 is provided on the steering plate. A steering seat 15 is provided at the upper end of the linear module. A rotating shaft 16 is rotatably arranged in the steering seat. A steering block 17 is fixedly connected to one end of the rotating shaft 16 near the steering plate 13. A pulley 18 is also connected to the steering block 17 at a position off the axis of the rotating shaft 16. The pulley 18 is located on the side of the steering block 17 facing the steering plate 13 and is slidably arranged in the L-shaped groove 14. An opening and closing cylinder 19 is fixedly connected to the other end of the rotating shaft 16 away from the steering plate 13. A mechanical clamp 20 is provided at the output end of the opening and closing cylinder. The opening and closing cylinder drives the mechanical clamp 20 to perform opening and closing clamping actions.

[0039] With the above settings, the inner rod retrieval device can flip the inner rod 0 in the inner rod limiting groove 3 with the opening facing forward, and then move it to the inner rod positioning groove 5 with the opening facing upward. This method can increase space utilization.

[0040] The sheath positioning groove 7 is provided with a sheath relief groove 21 on the other side opposite to the sheath sliding groove 8, and a pressure plate 22 is provided above the sheath relief groove 21. By setting the sheath relief groove 21, the sheath slide plate can enter the sheath relief groove 21 and be pressed down by the pressure plate 22 when the sheath is being transported, thereby increasing the stability of the movement of the sheath slide plate 9.

[0041] An opening plate 23 is provided in front of the sheath positioning groove 7. The opening plate 23 includes a hinge end 24 and an opening end 25. The hinge end 24 is rotatably connected to the mounting positioning plate 4, and the opening end 25 is disposed in the sheath positioning groove 7. An opening inclined groove 26 is provided at the lower end of the opening end 25. With the above settings, the sheath 1 can be more stable after entering the sheath positioning groove 7. When the push rod pushes the inner rod 0 forward, it first provides a certain resistance to the sheath 1, so that the sheath 1 can be better fitted onto the inner rod 0. Then the opening end 25 opens, and the inner rod 0, along with the sheath 1, enters the pen shell 100.

[0042] The lower end face of the opening groove 26 is spaced apart from the bottom of the sleeve positioning groove 7, and this distance is less than the height of the sleeve within the sleeve positioning groove. This design allows for easier opening of the opening plate and prevents jamming.

[0043] The mounting and positioning plate 4 is provided with several clamping grooves 27, and clamping rods 28 are slidably disposed in the clamping grooves 27. The clamping rods 28 are fixedly connected to the push rod drive device. With the above arrangement, as the pen shell is transported forward, it can be further clamped and fixed after the inner rod is installed.

[0044] The push rod driving device includes a drive plate 29, which is fixedly connected to the push rod 6, and also includes a drive cylinder (not shown), the output end of which is fixedly connected to the drive plate.

[0045] The push rod drive device includes a drive plate 29, which is fixedly connected to the push rod 6. A linkage plate 30 is connected to the rear end of the drive plate, and a coupling 31 is rotatably connected to the linkage plate. The other end of the coupling is connected to a cam mechanism, which drives the drive plate to reciprocate. The cam structure is a common mechanical structure in the machinery industry and will not be elaborated further here. Through this setup, it can be linked with drive devices at other workstations on the production line, improving synchronization and reducing the use of cylinders, thus lowering costs.

[0046] The inner rod limiting groove 3 includes a limiting seat 32 fixed to the discharge end. Four limiting claws 33 are rotatably mounted on the limiting seat 32. Two limiting claws 33 are divided into two groups, with each group's limiting claws 33 positioned on both sides of the inner rod limiting groove 3. The opposite ends of the two limiting claws 33 extend into the inner rod limiting groove 3 to form limiting ends 34. Each limiting claw 33 is connected to a spring (not shown), which consistently applies a force to the limiting ends of the limiting claws 33, causing them to move into the inner rod limiting groove 3. With this configuration, when no mechanical clamp is pulling out the inner rod, the limiting claws will block the inner rod, preventing it from slipping out, thus allowing the inner rods to enter the inner rod limiting groove in an orderly manner, awaiting extraction by the mechanical clamp one by one.

[0047] The limiting end has a transition arc surface 35 on the side facing the feed channel. The transition arc surface can protect the surface of the sheath and effectively reduce the risk of scratches.

[0048] This invention features the ability to install the inner rod and the protective sleeve simultaneously, thereby reducing workstations and steps and improving production efficiency.

[0049] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An inner rod installation mechanism for synchronously installing a sheath, comprising a frame, wherein the frame is provided with an inner rod feeding channel, and the discharge end of the inner rod feeding channel is provided with an inner rod limiting groove, the inner rod limiting groove opening horizontally forward, characterized in that, The inner rod limiting groove is provided with a mounting positioning plate in front of it, and the mounting positioning plate is provided with an inner rod positioning groove. The inner rod positioning groove is open upwards. A push rod is provided behind the inner rod positioning groove, and a push rod driving device is provided to drive the push rod to move back and forth in the inner rod positioning groove. There is also an inner rod retrieval device for taking out the inner rod from the inner rod limiting groove and transporting it to the inner rod positioning groove. The inner rod positioning groove is also provided with a sleeve positioning groove in front of it and is connected to it. The side of the sleeve positioning groove is provided with a sleeve sliding groove and is connected to it. The sleeve sliding groove is provided with a sleeve sliding plate. The sleeve sliding plate is provided with a positioning notch for the sleeve to enter. The mounting positioning plate is also provided with a sleeve cylinder. The output end of the sleeve cylinder is connected to the sleeve sliding plate and drives the sleeve sliding plate to slide towards the inner rod positioning groove, so that the positioning notch moves onto the sleeve positioning groove.

2. The inner rod mounting mechanism for synchronously installing a sheath according to claim 1, characterized in that: The inner rod removal device includes a linear module. One side of the linear module is provided with a steering plate, and the steering plate is provided with an L-shaped groove. The upper end of the linear module is provided with a steering seat, and a rotating shaft is rotatably arranged inside the steering seat. A steering block is fixedly connected to one end of the rotating shaft near the steering plate. A pulley is also connected to the steering block at a position off the axis of the rotating shaft. The pulley is located on the side of the steering block facing the steering plate and slides in the L-shaped groove. An opening and closing cylinder is fixedly connected to the other end of the rotating shaft facing away from the steering plate. A mechanical clamp is provided at the output end of the opening and closing cylinder. The opening and closing cylinder drives the mechanical clamp to open and close and clamp.

3. The inner rod mounting mechanism for synchronously installing a sheath according to claim 1, characterized in that: The sleeve positioning groove is provided with a sleeve relief groove on the other side of the slide groove, and a pressure plate is provided above the sleeve relief groove.

4. The inner rod mounting mechanism for synchronously installing a sheath according to claim 1, characterized in that: An opening plate is provided in front of the positioning groove of the sheath. The opening plate includes a hinged end and an opening end. The hinged end is rotatably connected to the mounting positioning plate, and the opening end is set in the positioning groove of the sheath. An opening inclined groove is provided at the lower end of the opening end.

5. The inner rod mounting mechanism for synchronously installing a sheath according to claim 4, characterized in that: The lower end face of the opening groove is spaced apart from the bottom of the sheath positioning groove, and this distance is less than the height of the sheath in the sheath positioning groove.

6. The inner rod mounting mechanism for synchronously installing a sheath according to claim 1, characterized in that: The mounting and positioning plate is provided with several clamping grooves, and a clamping rod is slidably arranged in the clamping groove. The clamping rod is fixedly connected to the push rod driving device.

7. The inner rod mounting mechanism for synchronously installing a sheath according to claim 1, characterized in that: The push rod driving device includes a drive plate, which is fixedly connected to the push rod, and a drive cylinder, the output end of which is fixedly connected to the drive plate.

8. The inner rod mounting mechanism for synchronously installing a sheath according to claim 1, characterized in that: The push rod drive device includes a drive plate, which is fixedly connected to the push rod. A linkage plate is connected to the rear end of the drive plate, and a coupling is rotatably connected to the linkage plate. The other end of the coupling is connected to a cam mechanism, which drives the drive plate to move back and forth.

9. The inner rod mounting mechanism for synchronously installing a sheath according to claim 1, characterized in that: The inner rod limiting groove includes a limiting seat fixed to the discharge end. Four limiting claws are rotatably arranged on the limiting seat. The two limiting claws are divided into two groups. The limiting claws of each group are arranged on both sides of the inner rod limiting groove. The opposite ends of the two limiting claws extend into the inner rod limiting groove to form limiting ends. The limiting claws are connected to springs. The springs always provide a force to the limiting ends of the limiting claws to move into the inner rod limiting groove.

10. The inner rod mounting mechanism for synchronously installing a sheath according to claim 9, characterized in that: The limiting end has a transition arc surface on the side facing the feeding channel.