Special Rust Remover for Fire Extinguishers

Abstract

The present invention discloses a special rust removal machine for fire extinguishers, which includes a fire extinguisher conveying part, comprising a rotary driving mechanism for rotating the fire extinguisher tank body placed in a horizontal posture along the axis and a linear driving mechanism for moving the fire extinguisher tank body along the axis; a grinding part, including a friction wheel arranged on the side surface of the fire extinguisher tank body, the friction wheel is connected with a steering mechanism, and the steering mechanism is used to keep the working surface of the friction wheel in continuous contact with the surface of the fire extinguisher tank body. The structure of the present invention is simple and easy to operate. Its fire extinguisher conveying part can stably support different models of fire extinguisher tank bodies placed in a horizontal posture. Cooperating with the grinding part, it can comprehensively grind the tank body and the tank mouth part, effectively improving the working efficiency of the fire extinguisher rust removal machine, saving time and effort, and reducing the production cost of the fire extinguisher.

Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguisher rust removal, and in particular to a special rust removal machine for fire extinguishers. Background Art

[0002] After the welding of the fire extinguisher tank body is completed, it is necessary to perform overall rust removal and polishing to improve the quality of the paint baking and make the appearance of the fire extinguisher after screen printing more beautiful. At present, there is no special rust removal machine for the fire extinguisher tank body. When using an ordinary hand-held electric rust removal machine to grind the tank body, it is time-consuming and laborious. Especially when grinding the curved surface structure of the fire extinguisher tank mouth part, it is not only difficult to operate, but also prone to uneven grinding, seriously affecting the rhythm of the automatic production of the fire extinguisher. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a special rust removal machine for fire extinguishers, which can adopt the following technical solutions:

[0004] The special rust removal machine for fire extinguishers according to the present invention includes

[0005] A fire extinguisher conveying part, including a rotary driving mechanism for making the fire extinguisher tank body placed in a horizontal posture rotate along the axis and a linear driving mechanism for making the fire extinguisher tank body move along the axis;

[0006] A grinding part, including a friction wheel arranged on the side of the fire extinguisher tank body, the friction wheel is connected to a steering mechanism, and the steering mechanism is used to keep the working surface of the friction wheel in continuous contact with the surface of the fire extinguisher tank body.

[0007] The rotary driving mechanism includes an arc-shaped support member adapted to the fire extinguisher tank body, a rotary bottom support adapted to the fire extinguisher base sleeve, and a top-in member adapted to the fire extinguisher tank mouth, and the arc-shaped support member, the rotary bottom support and the top-in member are all arranged on a sliding bottom plate;

[0008] The linear driving mechanism includes a fixed bottom plate, and an electric screw linear slide parallel to the axis of the fire extinguisher tank body is arranged on the fixed bottom plate, and the slider of the electric screw linear slide is connected to the sliding bottom plate;

[0009] The steering mechanism includes a fixed frame arranged on the fixed bottom plate, a vertical rotating shaft is arranged on the fixed frame, a first rotating motor connected to the friction wheel is arranged at the top of the vertical rotating shaft, a horizontal rotating rod parallel to the cross-section of the friction wheel is arranged at the bottom of the vertical rotating shaft, a return spring connected to the fixed frame is arranged at one end of the horizontal rotating rod, and a roller cooperating with a guiding track is arranged at the other end of the horizontal rotating rod, and the roller is arranged on the sliding bottom plate and is parallel to the fire extinguisher tank body.

[0010] A hand-cranked screw linear slide parallel to the axis of the fire extinguisher tank body is provided on the sliding bottom plate. The slider of the hand-cranked screw linear slide is connected to the jacking member, and the slide rail of the hand-cranked screw linear slide is connected to the arc-shaped support member.

[0011] The jacking member includes a jacking rod connected to the jacking cylinder, and the head of the jacking rod is conical.

[0012] There is at least one arc-shaped support member, and an axis adjustment device is provided on each arc-shaped support member.

[0013] There are at least two axis adjustment devices with the same structure. Each axis adjustment device includes a fixed cylinder arranged on the lower surface of the arc-shaped support member. An elevating cylinder whose height can be adjusted by screwing a screw rod is arranged in the fixed cylinder. The top of the elevating cylinder is connected with a support roller extending to the upper surface of the arc-shaped support member. The support roller is tangent to the surface of the fire extinguisher tank body, and the axis of the screwing screw rod is located in the cross-section of the fire extinguisher tank body.

[0014] The rotating bottom support includes a fixed bracket. A circular base is arranged on the fixed bracket. A frustum with an open top surface is arranged on the front of the circular base. The frustum is coaxially arranged with the fire extinguisher tank body; the back of the circular base is connected with a second rotating motor.

[0015] The guiding track includes a straight surface section for keeping the friction wheel moving in a straight line and a curved surface section for making the friction wheel rotate around a vertical rotating shaft.

[0016] There are two sets of steering mechanisms, symmetrically arranged on both sides of the fire extinguisher tank body.

[0017] Feeding platforms and discharging platforms are arranged on both sides of the fire extinguisher conveying part. A support platform is spanned above the feeding platforms and discharging platforms. Two pneumatic grippers connected by a multi-dimensional moving mechanism are arranged side by side on the support platform.

[0018] Two pairs of clamping blocks for clamping the fire extinguisher tank body are symmetrically arranged on the clamping arms of the pneumatic gripper.

[0019] A dust-proof cover is arranged outside the grinding part.

[0020] The special rust-removing machine for fire extinguishers provided by the present invention has a simple structure and is easy to operate. Its fire extinguisher conveying part can stably support different models of fire extinguisher tank bodies placed in a horizontal posture. Cooperating with the grinding part, it can comprehensively grind the tank body and the tank mouth part, effectively improving the working efficiency of the fire extinguisher rust-removing machine, saving time and effort, and reducing the production cost of the fire extinguisher; at the same time, the present invention can also be used to erase the misaligned characters and patterns on the fire extinguisher tank body during screen printing. Description of the Drawings

[0021] Figure 1It is a schematic structural diagram of the present invention.

[0022] Figure 2 It is the front view of the present invention (excluding the gripper mechanism).

[0023] Figure 3 It is Figure 2 the top view of.

[0024] Figure 4 It is Figure 2 the schematic diagram of the state when the fire extinguisher runs to the tank mouth part (excluding the gripper mechanism).

[0025] Figure 5 It is Figure 1 the schematic structural diagram of the rotary drive mechanism in.

[0026] Figure 6 It is Figure 5 the schematic structural diagram of the rotary drive mechanism in.

[0027] Figure 7 It is Figure 3 the enlarged view of part A in.

[0028] Figure 8 It is Figure 3 the schematic structural diagram of the steering mechanism in.

[0029] Figure 9 It is Figure 8 the rear view of.

[0030] Figure 10 It is Figure 1 the schematic structural diagram of the pneumatic gripper in. Specific embodiments

[0031] The special rust removal machine for fire extinguishers described in the present invention includes a fire extinguisher conveying part and a grinding part. Among them, the fire extinguisher conveying part includes a rotary drive mechanism for making the fire extinguisher tank body placed in a horizontal posture rotate around the axis and a linear drive mechanism for making the fire extinguisher tank body move along the axis; the grinding part includes a friction wheel arranged on the side surface of the fire extinguisher tank body, and the friction wheel is connected to a steering mechanism, and the steering mechanism is used to keep the working surface of the friction wheel in continuous contact with the surface of the fire extinguisher tank body.

[0032] The following will describe the embodiments of the present invention in detail with reference to the accompanying drawings. These embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation manners and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0033] As Figures 1-10As shown in the figure, the special rust-removing machine for fire extinguishers of the present invention includes a fixed bottom plate 1. An electric screw linear slide 2 is installed on the fixed bottom plate 1. A sliding bottom plate 3 is connected to the slider of the electric screw linear slide 2. A rotary drive mechanism is installed on the sliding bottom plate 3 to make the fire extinguisher M tank body placed in a horizontal position rotate. At the same time, the fire extinguisher M tank body can move linearly along the axis under the action of the electric screw linear slide 2.

[0034] As Figure 5 shown, the above-mentioned rotary drive mechanism includes a fixed support frame installed at the left end of the sliding bottom plate 3. A circular base 4.1.2 driven by a second rotary motor 4.1.1 is installed on the fixed support frame. A frustum 4.1.3 with an open top surface is integrally connected to the right side of the circular base 4.1.2. The frustum 4.1.3 is coaxially arranged with the fire extinguisher M tank body. A hand-operated screw linear slide 4.2 parallel to the central axis of the circular base 4.1.2 is installed on the substrate on the right side of the fixed support. A push rod 4.3.2 driven by a jacking cylinder 4.3.1 is installed on the slider of the hand-operated screw linear slide 4.2. The push rod 4.3.2 is coaxially arranged with the frustum 4.1.3, and its head is conical, which is convenient for inserting into the fire extinguisher M tank mouth and automatically centering with the frustum 4.1.3. Two arc-shaped support members 4.4 located on the left side of the push rod 4.3.2 are arranged side by side on the slide rail of the hand-operated screw linear slide 4.2. Each arc-shaped support member 4.4 is respectively provided with two axis adjustment devices 4.5 symmetrically distributed on both sides of the mid-perpendicular plane of the fire extinguisher M tank body. As Figure 6 shown, each axis adjustment device 4.5 includes a fixed cylinder 4.5.1 installed on the lower surface of the arc-shaped support member 4.4. A lifting cylinder 4.5.3 whose height is adjusted by screwing a screw 4.5.2 is installed in the fixed cylinder 4.5.1. A support roller 4.5.4 extending to the upper surface of the arc-shaped support member 4.4 is connected to the top of the lifting cylinder 4.5.3. The support roller 4.5.4 is tangent to the surface of the fire extinguisher M tank body, and the axis of the screwing screw 4.5.2 is located in the cross-section of the fire extinguisher M tank body. Among them, the screwing screw 4.5.2 is limited by a positioning bolt 4.5.5 connected to the fixed cylinder 4.5.1. A vertical guide groove 4.5.6 is opened on the outer wall of the lifting cylinder 4.5.3, which cooperates with the guide bolt 4.5.7 on the fixed cylinder 4.5.1 to make the lifting cylinder 4.5.3 vertically lift along the fixed cylinder 4.5.1.

[0035] During use, first determine the distance between the frustum 4.1.3 and the ejector rod 4.3.2, and the height of the support roller 4.5.4 according to the size of the fire extinguisher M; then, by turning the handle of the manual screw linear slide 4.2, make the ejector rod 4.3.2 reach the appropriate position to complete the adjustment of the clamping distance; next, by screwing the screw 4.5.2, make the support roller 4.5.4 reach the appropriate height to complete the adjustment of the supporting height of the arc-shaped support 4.4; then place the fire extinguisher M tank body on the arc-shaped support 4.4 so that its outer wall is in contact with the support roller 4.5.4. At the same time, move the fire extinguisher M tank body to the left so that the base sleeve at its bottom is sleeved on the outer side of the frustum 4.1.3 to complete automatic centering. Since the top of the frustum 4.1.3 is open, the spherical bottom surface in the base sleeve of the fire extinguisher M will not interfere with the circular base 4.1.2; finally, insert the ejector rod 4.3.2 into the mouth of the fire extinguisher M through the jacking cylinder 4.3.1 to complete the positioning and installation of the fire extinguisher M.

[0036] A pair of friction wheels 5 are symmetrically arranged on the left and right sides of the fire extinguisher M tank body, and each friction wheel 5 is connected to a steering mechanism. Generally, the above-mentioned friction wheels 5 are made of wear-resistant wire wheels. As Figure 8 、 9 shown, the above-mentioned steering mechanism includes a fixed frame 6.1 installed on the fixed base plate 1. A first rotating motor 6.2 connected to the friction wheel 5 is installed on the top surface of the fixed frame 6.1. The axis of the above-mentioned friction wheel 5 is parallel to the center line of the fire extinguisher M tank body, and the working surface of the friction wheel 5 is in contact with the surface of the fire extinguisher M tank body. The mounting seat of the first rotating motor 6.2 is connected to the vertical rotating shaft 6.3. The vertical rotating shaft 6.3 passes through the top surface of the fixed frame 6.1 and extends downward. A horizontal rotating rod 6.4 parallel to the cross-section of the friction wheel 5 is installed at its bottom. One end of the horizontal rotating rod 6.4 is installed with a return spring 6.5 connected to the side wall of the fixed frame 6.1, and the other end is installed with a roller 6.7 cooperating with the guiding track 6.6. As Figure 3 、 4 shown, the above-mentioned guiding track 6.6 is installed on the sliding base plate 3, and is arranged parallel to the fire extinguisher M tank body and moves synchronously with the fire extinguisher M tank body. In order to enable the friction wheel 5 to polish the straight surface structure of the body part and the curved surface structure of the mouth part of the fire extinguisher M at the same time, the above-mentioned guiding track 6.6 includes a straight surface section m for keeping the friction wheel 5 moving in a straight line and a curved surface section n for making the friction wheel 5 rotate around the vertical rotating shaft 6.3 (see Figure 7 ).

[0037] During use, the horizontal fire extinguisher M tank body is supported by the top rod 4.1 and the rotating base 4.2, and is caused to rotate; the first rotating motor 6.2 is started to rotate the friction wheel 5, and at the same time, the electric screw linear slide 2 is started to move the fire extinguisher M tank body from right to left, so that the friction wheel 5 first grinds the fire extinguisher M tank body part, and then grinds the fire extinguisher M tank mouth part; when the entire fire extinguisher M tank body is completely polished, the motor of the electric screw linear slide 2 is reversed to transport the fire extinguisher M tank body to the initial position. When the fire extinguisher M tank body part is connected to the friction wheel 5, the roller 6.7 contacts the straight surface segment m of the guide rail 6.6, the working surface of the friction wheel 5 contacts the entire fire extinguisher M tank body, and the reset spring 6.5 is not stretched and is in a free state. When the fire extinguisher M tank mouth part is about to connect with the friction wheel 5, the roller 6.7 contacts the curved surface segment n of the guide rail 6.6. Figure 3 For example, when the roller 6.7 contacts the curved section n of the guide rail 6.6, the horizontal rotating rod 6.4 rotates counterclockwise due to the large resistance, and the vertical rotating shaft 6.3 rotates counterclockwise, driving the friction wheel 5 connected to it to rotate counterclockwise as well (see Figure 7 ), so that the working surface of the friction wheel 5 is always in contact with the curved surface structure of the tank mouth of the fire extinguisher M and polishes it. When the horizontal rotating rod 6.4 rotates counterclockwise, the return spring 6.5 connected to the side wall of the fixing frame 6.1 is in a stretched state.

[0038] In order to prevent the rust or iron filings removed by the high-speed rotating friction wheel 5 from flying and injuring people, a dust cover is bridged over the fixed base plate 1 above the friction wheel 5, and the friction wheels 5 on both sides are enclosed in the dust cover. At the same time, a pipe interface for connecting the dust collector is reserved at the top of the dust cover to further process the rust or paint fragments scattered in the dust cover to prevent them from polluting the air and protecting the environment.

[0039] Furthermore, in order to realize automatic loading and unloading and closely coordinate with the grinding rhythm of the fire extinguisher M tank body, a loading platform 7 and a unloading platform 8 are installed on the fixed base plate 1, which are located on the left and right sides of the sliding base plate 3. The loading platform 7 and the unloading platform 8 are installed side by side near one end of the top rod 4.3.2, and are respectively installed with adjustment rails parallel to the electric screw linear slide 2. Each adjustment rail is installed with an arc-shaped support member 4.4 for supporting the fire extinguisher M tank body. The arc-shaped support member 4.4 can adjust its position on the loading platform 7 or the unloading platform 8 according to the model of the fire extinguisher M tank body, so as to achieve the purpose of stably supporting the fire extinguisher M tank body. The above-mentioned loading platform 7 is connected with the loading and conveying mechanism, and the unloading platform 8 is connected with the unloading and conveying mechanism.

[0040] A support platform 9 is also connected above the loading platform 7 and the unloading platform 8. The support platform 9 is connected to two pneumatic grippers 10 arranged side by side through a multi-dimensional moving mechanism.Figure 10 As shown in the figure, the multi-dimensional moving mechanism includes a rodless cylinder 11.1 connected to the support table 9 and perpendicular to the fire extinguisher M tank body 1. The rodless cylinder 11.1 is connected to a first connecting plate 11.2 parallel to the fire extinguisher M tank body 1. A lifting cylinder 11.3 is connected to the first connecting plate 11.2. The lifting cylinder 11.3 is connected to a pneumatic gripper 10 through a second connecting plate 11.4, and the second connecting plate 11.4 is perpendicular to the fire extinguisher M tank body 1. In order to adjust the position of the second connecting plate 11.4 along the direction of the fire extinguisher M tank body, so that the pneumatic gripper 10 is located directly above the first arc-shaped support member 2 and the second arc-shaped support member 6, and can just be clamped in the middle of the fire extinguisher M tank body. An adjusting plate 11.5 is installed on the top of the rodless cylinder 11.1. Adjusting long holes 11.6 connected to the support table 9 by bolts are provided on both sides of the adjusting plate 11.5, and the adjusting long holes 11.6 are arranged along the direction of the fire extinguisher M tank body. The rodless cylinder 11.1 is used to reciprocate the two pneumatic grippers 10 between the first station and the second station. The first station means that the two pneumatic grippers 10 correspond to the loading table 7 and the hand-operated screw linear slide 4.2 respectively, and the second station means that the two pneumatic grippers 10 correspond to the unloading table 8 and the hand-operated screw linear slide 4.2 respectively; that is, the grasping mechanism grasps two fire extinguisher M tank bodies at the same time. When the pneumatic gripper 10 is transferred from the first station to the second station, the fire extinguisher M tank body on the hand-operated screw linear slide 4.2 can be transferred to the unloading table 8. At the same time, the fire extinguisher M tank body on the loading table 7 is replenished to the hand-operated screw linear slide 4.2. Then, the pneumatic gripper 10 returns from the second station to the first station to complete a grasping operation and wait for the next grasping. When it is necessary to grasp the fire extinguisher M tank body, the clamping cylinder 10.1 of the pneumatic gripper 10 drives the paired clamping arms 10.2 to move relatively; in order to form a firm clamping of the fire extinguisher tank M body, two pairs of clamping blocks 10.3 are arranged at intervals from top to bottom on the inner side of each pair of clamping arms 10.2, and the distance between adjacent clamping blocks 10.3 on the single-side clamping arm 10.2 is slightly smaller than the diameter of the fire extinguisher M tank body.

Claims

1. A special rust remover for fire extinguishers, characterized in that: Comprising A fire extinguisher conveying section, including a rotary drive mechanism for rotating the fire extinguisher tank body placed in a horizontal posture along the axis and a linear drive mechanism for moving the fire extinguisher tank body along the axis; A grinding section, including a friction wheel arranged on the side surface of the fire extinguisher tank body, the friction wheel is connected to a steering mechanism, and the steering mechanism is used to keep the working surface of the friction wheel in continuous contact with the surface of the fire extinguisher tank body; The rotary drive mechanism includes an arc-shaped support member adapted to the fire extinguisher tank body, a rotary bottom support adapted to the fire extinguisher base sleeve, and a jacking member adapted to the fire extinguisher tank mouth, and the arc-shaped support member, the rotary bottom support and the jacking member are all arranged on the sliding bottom plate; The linear drive mechanism includes a fixed bottom plate, and an electric screw linear slide parallel to the axis of the fire extinguisher tank body is arranged on the fixed bottom plate, and the slider of the electric screw linear slide is connected to the sliding bottom plate; The steering mechanism includes a fixed frame arranged on the fixed bottom plate, a vertical rotating shaft is arranged on the fixed frame, a first rotating motor connected to the friction wheel is arranged at the top of the vertical rotating shaft, a horizontal rotating rod parallel to the cross section of the friction wheel is arranged at the bottom of the vertical rotating shaft, a return spring connected to the fixed frame is arranged at one end of the horizontal rotating rod, and a roller cooperating with the guiding track is arranged at the other end of the horizontal rotating rod, and the guiding track is arranged on the sliding bottom plate and is parallel to the fire extinguisher tank body; the guiding track includes a straight surface section for keeping the friction wheel moving in a straight line and a curved surface section for making the friction wheel rotate around the vertical rotating shaft; There are two sets of the steering mechanisms, symmetrically arranged on both sides of the fire extinguisher tank body.

2. The special rust remover for fire extinguishers according to claim 1, characterized in that: A hand-operated screw linear slide parallel to the axis of the fire extinguisher tank body is arranged on the sliding bottom plate, the slider of the hand-operated screw linear slide is connected to the jacking member, and the slide rail of the hand-operated screw linear slide is connected to the arc-shaped support member.

3. The special rust remover for fire extinguishers according to claim 2, characterized in that: The jacking member includes a jacking rod connected to a jacking cylinder, and the head of the jacking rod is conical.

4. The special rust remover for fire extinguishers according to claim 2, characterized in that: There is at least one arc-shaped support member, and an axis adjusting device is arranged on the arc-shaped support member.

5. The rust remover for fire extinguishers according to claim 4, characterized in that: There are at least two axis adjusting devices, and their structures are the same. Each includes a fixed cylinder arranged on the lower surface of the arc-shaped support member, a lifting cylinder for adjusting the height by screwing a screw is arranged in the fixed cylinder, a support roller extending to the upper surface of the arc-shaped support member is connected to the top of the lifting cylinder, the support roller is tangent to the surface of the fire extinguisher tank body, and the axis of the screwing screw is located in the cross section of the fire extinguisher tank body.

6. The rust remover for fire extinguishers according to claim 1, characterized in that: The rotary bottom support includes a fixed bracket, a circular base is arranged on the fixed bracket, a frustum with an open top surface is arranged on the front surface of the circular base, and the frustum is coaxially arranged with the fire extinguisher tank body; the back surface of the circular base is connected to a second rotating motor.

7. The rust removal machine for fire extinguishers according to claim 1, characterized in that: Feeding platforms and discharging platforms are arranged on both sides of the fire extinguisher conveying section, a support platform is bridged above the feeding platforms and the discharging platforms, and two pneumatic grippers connected by a multi-dimensional moving mechanism are arranged side by side on the support platform.

8. The special rust remover for fire extinguishers according to claim 7, characterized in that: Two pairs of clamping blocks for clamping the fire extinguisher tank body are symmetrically arranged on the clamping arms of the pneumatic gripper.

9. The rust remover for fire extinguishers according to claim 1, characterized in that: A dust-proof cover is arranged outside the grinding section.

Images