A gun changing mechanism
By combining a support plate cylinder and a lifting rod structure with a pressure sensor, the problem of the material gun falling off in the existing filling machine's gun changing mechanism has been solved, achieving stable fixing and safe monitoring of the material gun, and improving the reliability and safety of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏尚纯自动化技术有限公司
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-02
AI Technical Summary
The existing filling machine gun changing mechanism uses a magnetic attraction method, which poses a risk of falling, especially when the electromagnet suddenly loses power and cannot hold the gun in place, resulting in a safety hazard.
It adopts a support plate cylinder and a cantilever structure. The back-and-forth movement driven by the support plate cylinder is connected by a vertical displacement mechanism. The material gun fixing assembly is fixed by the combination of the support plate cylinder and the cantilever plate. The material gun is connected to the cantilever through the combination of the cantilever plate and the cantilever plate. The diameter difference between the head and the rod of the cantilever is used to achieve stable clamping of the material gun. A pressure sensor is equipped to monitor the working status of the cylinder.
It effectively prevents the feed gun from falling, improves the stability of the feed gun, and monitors the working status of the cylinder through a pressure sensor to prevent the feed gun from falling due to cylinder failure, thus ensuring operational safety.
Smart Images
Figure CN224313228U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filling machine technology, specifically to a gun changing mechanism. Background Technology
[0002] A filling machine is a common piece of equipment, mainly used to fill liquid or powdered materials into containers. Existing filling machines are generally compatible with a variety of materials, which means that the filling machine can accommodate multiple nozzles. Different nozzles are used to fill different materials, so a nozzle changing mechanism is needed to change the nozzles.
[0003] Some existing gun-changing mechanisms use magnetic attraction to replace the material gun. Although magnetic attraction only requires controlling the presence or absence of magnetism of the electromagnet to attract the required material gun, if the circuit contact is poor, the electromagnet will suddenly lose power and will not be able to continue to fix the material gun, thus posing a risk of it falling off. Utility Model Content
[0004] To address the risk of the filling gun falling off in existing magnetic gun changing mechanisms, this invention provides a gun changing mechanism that can be used to replace filling guns in a filling machine. It also offers good stability and prevents the filling gun from falling off during the fixing process.
[0005] The technical solution is as follows: a gun-changing mechanism, comprising a gun-changing assembly and multiple gun-fixing assemblies, wherein the gun-changing assembly is connected to a vertical displacement mechanism and is connected to the gun via a first gun-hanging plate; the gun-fixing assemblies are connected to the gun via a second gun-hanging plate; characterized in that: the gun-changing assembly includes a first support plate cylinder and a first lifting rod, the first lifting rod being mounted on the first support plate cylinder and driven by the first support plate cylinder to move back and forth; the gun-fixing assemblies include a second support plate cylinder and a second lifting rod, the second lifting rod being mounted on the second support plate cylinder and... The support plate cylinder 2 drives the movement back and forth. The head diameter of the first and second lifting rods is larger than the rod diameter. The first and second hanging gun plates are located on the front and rear sides of the material gun, respectively. The first and second hanging gun plates are respectively provided with hanging gun holes. The hanging gun hole includes a positioning hole and a connecting hole 1. The positioning hole is located below the connecting hole 1 and the two are connected. The diameter of the positioning hole is greater than or equal to the head diameter of the lifting rod. The diameter of the connecting hole 1 is smaller than the head diameter of the lifting rod but greater than or equal to the rod diameter.
[0006] Furthermore, the number of the first and second lifting rods is greater than or equal to two, and the first and second gun hanging plates are respectively provided with gun hanging holes corresponding to the positions of each of the first and second lifting rods.
[0007] Furthermore, the gun-hanging plate one has a pressure pad on the side opposite to the support plate cylinder one, and the gun-hanging plate two has a pressure pad on the side opposite to the support plate cylinder two. The pressure pad is connected to the gun-hanging plate one and the gun-hanging plate two through a connecting shaft. The pressure pad has a connecting hole two with an open bottom. The rod can enter the connecting hole two through the opening. The diameter of the connecting hole two is smaller than the diameter of the rod head and greater than or equal to the diameter of the rod. Pressure sensors that can be covered by the pressure pad are respectively provided between the gun-hanging plate one, the gun-hanging plate two and the pressure pad. When the support plate cylinder one or the support plate cylinder two retracts, the rod one or the rod two located in the connecting hole two can apply pressure to the pressure sensor through the pressure pad.
[0008] Furthermore, the feed gun fixing assembly has multiple components and is respectively mounted on the horizontal displacement mechanism.
[0009] Beneficial effects: The material gun is connected to the material gun changing assembly and the material gun fixing assembly through the first or second hanging plate. The first or second lifting rod, which extends into the first connecting hole, can clamp the material gun under the action of the first or second supporting plate cylinder, thereby preventing the material gun from falling. In addition, the pressure sensor can monitor whether the cylinder is working properly, further preventing the material gun from falling due to cylinder failure. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model;
[0011] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0012] Figure 3 This is a schematic diagram showing the connection between the first lifting rod and the first gun hanging plate;
[0013] Figure 4 This is a schematic diagram showing the location of the pressure sensor. Detailed Implementation
[0014] like Figure 1 , Figure 2The illustrated gun-changing mechanism includes a gun-changing assembly 1 and multiple gun-fixing assemblies 2. The gun-changing assembly 1 is connected to a vertical displacement mechanism 3, and a gun-hanging plate 401 is connected to a gun 4. The vertical displacement mechanism 3 (e.g., a vertical slide rail) drives the gun-changing assembly 1 to move up and down. Multiple gun-fixing assemblies 2 are mounted on a horizontal displacement mechanism 8 and connected to the gun 4 via gun-hanging plates 402. The gun-changing assembly 1 includes a support plate cylinder 101 and a lifting rod 102. The lifting rod 102 is mounted on the support plate cylinder 101 and is driven to move back and forth by the support plate cylinder 101. Similarly, the gun-fixing assemblies 2 include a support plate cylinder 201 and a lifting rod 2. The lifting rod 2 is mounted on the support plate cylinder 201 and is driven to move back and forth by the support plate cylinder 201. Figure 3 The diameter of the head 1021 of the first and second lifting rods is larger than the diameter of their rod sections. The first and second hanging gun plates 401 and 402 are located on the front and rear sides of the material gun 4, respectively. The first and second hanging gun plates 401 and 402 are respectively provided with hanging gun holes 403. Figure 4 The gun mounting hole 403 includes a positioning hole 4031 and a connecting hole 4032. The positioning hole 4031 is located below the connecting hole 4032 and the two are connected. The diameter of the positioning hole 4031 is greater than or equal to the diameter of the head 1021 of the cannon. The diameter of the connecting hole 4032 is less than the diameter of the head of the cannon but greater than or equal to the diameter of the cannon rod.
[0015] With the above setup, when the material gun 4 is fixed to the material gun fixing assembly 2, the vertical displacement mechanism 3 drives the material gun 4 to move vertically until the positioning hole 4031 of the hanging plate 402 of the material gun 4 is at the same horizontal height as the second lifting rod. The support cylinder 201 drives the second lifting rod forward so that its head passes through the positioning hole 4031. Then, the vertical displacement mechanism 3 drives the material gun 4 to descend, so that the rod of the second lifting rod enters the first connecting hole 4032. Then, the support cylinder 101 is released and the lifting rod 102 continues to descend until it exits the positioning hole 4031 of the hanging plate 401. At the same time, the support cylinder 201 is tightened to fix the material gun 4 to the material gun fixing assembly 2. Finally, the cylinder retracts the lifting rod 102 to realize the connection between the material gun fixing assembly 2 and the material gun fixing assembly 2. Gun 4 is disengaged; if it is necessary to connect gun 4 to gun changing assembly 1, the operation is reversed. Even if the first lifting rod 102 is moved to the positioning hole 4031 of the gun to be replaced, the cylinder makes the head of the first lifting rod 102 pass through the positioning hole 4031 and rise to the connection hole 4032. The cylinder retracts to fix gun 4 to gun changing assembly 1. During the above process, when the head of the second lifting rod 2 corresponds to the positioning hole 4031 of the second hanging plate 2 402, the second lifting rod 2 is retracted to disengage gun 4 from gun fixing assembly 2. The head of the lifting rod is clamped by the gun hanging plate under the action of the cylinder retraction. At the same time, under the action of gravity, gun 4 is pressed against the lifting rod by the gun hanging plate to prevent the gun from falling and ensure its stability.
[0016] In addition, there are two or more lifting rods 102 and two lifting rods 2. The first hanging plate 401 and the second hanging plate 402 are respectively provided with hanging gun holes 403 corresponding to the positions of each lifting rod 102 and lifting rod 2. This setting can prevent the material gun 4 from swinging and further ensure the stability of the material gun 4.
[0017] Meanwhile, in order to prevent the material gun from falling off due to cylinder failure, combined with Figure 2 , Figure 3 , Figure 4 As shown, a pressure pad 5 is provided on the side of the gun-hanging plate 401 facing away from the support plate cylinder 101 and the side of the gun-hanging plate 402 facing away from the support plate cylinder 201. The pressure pad 5 is slidably mounted on the gun-hanging plate connection via a connecting shaft 6. A second connecting hole is provided on the pressure pad 5. Preferably, the position of the second connecting hole corresponds to the position of the first connecting hole 4032. The bottom of the second connecting hole is open, and the rod can enter the second connecting hole through the opening. The diameter of the second connecting hole is smaller than the diameter of the rod head and greater than or equal to the diameter of the rod. A pressure sensor 7 is provided between the gun-hanging plate and the pressure pad 5, which can be covered by the pressure pad 5. When the support plate cylinder 101 or the support plate cylinder 201 retracts, the cannon 102 or the cannon 2 located in the connection hole 2 can apply pressure to the pressure sensor 7 through the pressure pad 5. In this way, the pressure sensor 7 can continuously monitor the clamping force. If the cylinder fails, an alarm can be triggered. At the same time, the use of the pressure pad 5 can indirectly increase the contact area between the cannon and the gun-hanging plate, helping it to press against the pressure sensor 7.
[0018] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A gun-changing mechanism, comprising a gun-changing assembly and a plurality of gun-fixing assemblies, wherein the gun-changing assembly is connected to a vertical displacement mechanism and is connected to the gun via a first gun-hanging plate, and the gun-fixing assemblies are connected to the gun via a second gun-hanging plate, characterized in that: The gun-changing assembly includes a support plate cylinder 1 and a lifting rod 1. The lifting rod 1 is mounted on the support plate cylinder 1 and is driven by the support plate cylinder 1 to move back and forth. The gun-fixing assembly includes a support plate cylinder 2 and a lifting rod 2. The lifting rod 2 is mounted on the support plate cylinder 2 and is driven by the support plate cylinder 2 to move back and forth. The head diameter of the lifting rod 1 and the lifting rod 2 is larger than the rod diameter. The gun-hanging plate 1 and the gun-hanging plate 2 are located on the front and rear sides of the gun, respectively. The gun-hanging plate 1 and the gun-hanging plate 2 are respectively provided with gun-hanging holes. The gun-hanging hole includes a positioning hole and a connecting hole 1. The positioning hole is located below the connecting hole 1 and the two are connected. The diameter of the positioning hole is greater than or equal to the head diameter of the lifting rod. The diameter of the connecting hole 1 is smaller than the head diameter of the lifting rod but greater than or equal to the rod diameter.
2. The gun-changing mechanism according to claim 1, characterized in that: The number of the first and second lifting rods is greater than or equal to two, and the first and second gun hanging plates are respectively provided with gun hanging holes corresponding to the positions of each of the first and second lifting rods.
3. A gun-changing mechanism according to claim 1 or 2, characterized in that: The gun-hanging plate one has a pressure pad on the side opposite to the support plate cylinder one, and the gun-hanging plate two has a pressure pad on the side opposite to the support plate cylinder two. The pressure pad is connected to the gun-hanging plate one and the gun-hanging plate two through a connecting shaft. The pressure pad has a connecting hole two with an open bottom, through which the rod can enter the connecting hole two. The diameter of the connecting hole two is smaller than the diameter of the rod head and greater than or equal to the diameter of the rod. Pressure sensors that can be covered by the pressure pad are respectively provided between the gun-hanging plate one, the gun-hanging plate two and the pressure pad. When the support plate cylinder one or the support plate cylinder two retracts, the rod one or the rod two located in the connecting hole two can apply pressure to the pressure sensor through the pressure pad.
4. The gun-changing mechanism according to claim 1, characterized in that: The feed gun fixing assembly has multiple components, each mounted on a horizontal displacement mechanism.