Edge cutting device for fuel gas surface membrane
By designing a gas squid edge cutting device including a first cutting knife and a second cutting knife, the problems of poor cutting convenience and low safety in the prior art are solved, efficient and accurate membrane cutting are achieved, and the sealing of the gas meter is improved.
Patent Information
- Application Number
- CN202421697579.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In the existing gas-pipe cutting and processing equipment, the cutting knife assembly is single and requires manual movement of the membrane, resulting in poor cutting convenience and low safety.
A gas-film edge cutting device is designed, including a first cutting knife, a second cutting knife, a rack top plate, a mold mounting substrate, a support assembly and a drive assembly. The driving assembly controls the cutting cooperation between the first cutting knife and the second cutting knife, and realizes the disposable cutting of the edge of the film, avoiding manual movement of the film.
It improves the accuracy and safety of the film cutting, enhances the cutting efficiency, ensures the precise burr-free size of the film after cutting, and thus improves the sealing of the gas meter.
Smart Images
Figure CN223000727U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas skin membrane processing equipment, in particular to a gas skin membrane trimming device. Background Technique
[0002] The metering of a diaphragm gas meter is realized through a mechanical dial. The mechanical dial performs an addition operation according to the gas volume used. For each unit volume used, the dial count is incremented by one, and finally the gas volume metering record is realized. When the flowing gas passes through the gas meter, due to the pipeline friction and the obstruction of the mechanism, the internal gas will generate a pressure difference at both ends of the inlet and outlet of the gas meter. Through this pressure difference, the diaphragm of the diaphragm gas meter is pushed to move in the metering chamber, and the gas distribution mechanism is driven to coordinate the gas distribution, so that the movement of the diaphragm can be carried out continuously and reciprocally. The diaphragm gas meter converts the linear reciprocating motion into a circular motion through the internal mechanical structure, and then drives the mechanical dial counter to rotate through the circular motion; each time the diaphragm reciprocates, a certain amount of gas is discharged, and finally the dial rotates through a counting unit to realize the rotation metering display effect of the dial.
[0003] The diaphragm is a key sealing component of the diaphragm gas meter, and the quality of the diaphragm directly determines the accuracy and service life of the diaphragm gas meter; in the prior art, only a single cutting knife assembly is provided on the gas skin membrane cutting and processing equipment. When the cutting knife cuts the diaphragm, it is necessary to manually move the diaphragm for cutting, which is inconvenient, and there is also a certain danger in manually moving the diaphragm during cutting. In order to solve the above problems, it is necessary to redesign a gas skin membrane trimming device here. Content of the Utility Model
[0004] The purpose of the utility model is to provide a gas skin membrane trimming device, which can propose a solution for the deficiencies of the prior art, not only can improve the cutting accuracy of the diaphragm, but also does not require manual movement of the diaphragm for cutting to improve safety.
[0005] The utility model is realized through the following technical solutions:
[0006] A gas skin membrane trimming device includes a first cutting knife, a second cutting knife, a frame top plate, a mold mounting substrate, a support assembly and a driving assembly; a support assembly is installed between the frame top plate and the mold mounting substrate; the driving assembly is installed on the frame top plate, the driving assembly is connected to the first cutting knife, the second cutting knife is installed on the mold mounting substrate, the driving assembly can control the cutting cooperation between the first cutting knife and the second cutting knife, and the first cutting knife can perform a one-time cutting on the edge of the second cutting knife.
[0007] Further, in the utility model, the second cutting assembly includes a diaphragm carrier, the diaphragm carrier is sleeved on the second cutting knife, and an elastic member is installed between the diaphragm carrier and the mold mounting substrate; when the elastic member is in the initial state, the vertical height of the diaphragm carrier is equal to that of the second cutting knife; when the elastic member is compressed, the diaphragm carrier moves towards the mold mounting substrate.
[0008] Further, in the utility model, the elastic member includes a return spring, one end of the return spring is connected to the mold mounting substrate, and the other end of the return spring is connected to the diaphragm carrier.
[0009] Further, in the utility model, return springs are connected between the four corners of the diaphragm carrier and the mold mounting substrate.
[0010] Further, in the utility model, a guide rod is further included. The diaphragm carrier is provided with a guide port adapted to the guide rod, the return spring is sleeved on the guide rod, and the guide rod is connected to the mold mounting substrate.
[0011] Further, in the utility model, a punching assembly is further included. The punching assembly includes a plurality of punch heads. The first cutting knife is provided with a mounting groove, and a plurality of punch heads are installed in the mounting groove. The second cutting knife is provided with a plurality of first punch holes, and the plurality of punch heads correspond to the plurality of first punch holes one by one.
[0012] Further, in the utility model, a pressing member is further included. The pressing member is used for pressing and cooperating with the second cutting knife; the pressing member is provided with a plurality of second punch holes, and the plurality of punch heads correspond to the plurality of second punch holes one by one; the pressing member can reciprocate along the depth direction of the mounting groove.
[0013] Further, in the utility model, first limiting members are installed on both sides of the mounting groove, and second limiting members adapted to the first limiting members are provided on both sides of the pressing member.
[0014] Further, in the utility model, a limiting rod is further included. The second cutting knife is connected to the mold mounting substrate by bolts. The second cutting knife is provided with a first limiting hole, and the mold mounting substrate is provided with a second limiting hole. The limiting rod can sequentially pass through the first limiting hole and the second limiting hole.
[0015] Further, in the utility model, the driving assembly includes a cylinder and a connecting shaft; the cylinder is installed on the top plate of the frame, one end of the connecting shaft is connected to the cylinder, and the other end of the connecting shaft is connected to the first cutting knife.
[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0017] When the first cutting knife presses down on the second cutting knife, it can cut off the surplus material at the edge of the film at one time, eliminating the need to manually move the film repeatedly to cut its edge. This not only improves the cutting efficiency but also enhances the safety during film cutting. The size of the second cutting knife is designed to match the size of the finished film. The size of the installation slot of the first cutting knife is slightly larger than that of the second cutting knife (the gap between the second cutting knife and the installation slot can be ignored), which not only makes the size of the cut film more accurate but also avoids the problem of burrs on the cut film. The film without burrs has stronger sealing performance when installed in the gas meter. Description of the Drawings
[0018] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of this application, and do not limit the embodiments of the present invention. In the drawings:
[0019] Figure 1 is a three-dimensional view of the film edge cutting device for the gas meter housing;
[0020] Figure 2 is a schematic diagram of the connection structure between the first cutting knife and the pressing member;
[0021] Figure 3 is a schematic diagram of the structure of the pressing member;
[0022] Figure 4 is a schematic diagram of the structure of the first cutting knife;
[0023] Figure 5 is a schematic diagram of the structure of the second cutting knife;
[0024] Figure 6 is a schematic diagram of the structure of the film carrier;
[0025] Figure 7 is a schematic diagram of the connection between the second cutting knife and the film carrier
[0026] Figure 8 is a schematic diagram of the connection between the film carrier and the mold mounting substrate;
[0027] Figure 9 is Figure 8 the enlarged view at A in
[0028] Figure 10 is a cross-sectional view of the connection between the first cutting knife and the pressing member.
[0029] The labels in the drawings and the corresponding component names:
[0030] 1 - Die mounting substrate, 2 - Frame top plate, 3 - Support assembly, 4 - Guide rod, 5 - Return spring, 6 - Membrane carrier, 7 - Second cutting knife, 8 - Second punch hole, 9 - First punch hole, 10 - First limit hole 1, 11 - Pressing part, 12 - Second limiting part, 13 - First limiting part, 14 - First cutting knife, 15 - Punch, 16 - Installation groove. Detailed implementation mode
[0031] In order to make the purpose, technical solution and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the embodiments and drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and do not limit the present utility model.
[0032] Embodiment
[0033] Please refer to Figures 1 to 10 .
[0034] This embodiment provides a gas skin membrane trimming device, including a first cutting knife 14, a second cutting knife 7, a frame top plate 2, a die mounting substrate 1, a support assembly 3 and a driving assembly; a support assembly 3 is installed between the frame top plate 2 and the die mounting substrate 1; the driving assembly is installed on the frame top plate 2, the driving assembly is connected to the first cutting knife 14, the second cutting knife 7 is installed on the die mounting substrate 1, the driving assembly can control the cutting cooperation between the first cutting knife 14 and the second cutting knife 7, and the first cutting knife 14 can perform a one-time cutting on the edge of the second cutting knife 7.
[0035] In this embodiment, the top plate 2 of the frame is connected to the mold mounting substrate 1 through a support assembly 3. A driving assembly is installed on the upper side of the top plate 2 of the frame, and a first cutting knife 14 is installed on the lower side of the top plate 2 of the frame. The driving assembly is connected to the first cutting knife 14. The mold mounting substrate 1 is provided with a second cutting knife 7. The driving assembly can control the first cutting knife 14 to reciprocate between the top plate 2 of the frame and the mold mounting substrate 1, so that the first cutting knife 14 and the second cutting knife 7 cooperate in cutting. The first cutting knife 14 is provided with a mounting groove 16, and the size of the mounting groove 16 is slightly larger than the size of the second cutting knife 7. When cutting the film, the film is placed on the second cutting knife 7 (the film size is larger than the second cutting knife 7), and the first cutting knife 14 moves downward towards the second cutting knife 7 to prepare for cutting. The second cutting knife 7 can just enter the mounting groove 16 of the first cutting knife 14. When the second cutting knife 7 enters the mounting groove 16, the edge of the second cutting knife 7 can cooperate with the first cutting knife 14 to cut the film. Moreover, when the first cutting knife 14 presses down towards the second cutting knife 7, the surplus material at the edge of the film can be cut off at one time, without manually moving the film repeatedly to cut its edge. While improving the cutting efficiency, it also improves the safety when cutting the film. The size of the second cutting knife 7 is designed to be adapted to the size of the finished film. The size of the mounting groove 16 of the first cutting knife 14 is slightly larger than the second cutting knife 7 (the gap between the second cutting knife 7 and the mounting groove 16 can be ignored), which not only makes the size of the cut film more accurate, but also avoids the problem of burrs generated after film cutting. The film without burrs has stronger sealing performance after being installed in the gas meter.
[0036] Further, in the utility model, the second cutting assembly includes a film carrier 6. The film carrier 6 is sleeved on the second cutting knife 7, and an elastic member is installed between the film carrier 6 and the mold mounting substrate 1. When the elastic member is in the initial state, the vertical height of the film carrier 6 is equal to that of the second cutting knife 7. When the elastic member is compressed, the film carrier 6 moves towards the mold mounting substrate 1.
[0037] In this embodiment, the film carrier 6 is sleeved on the second cutting knife 7 (the gap between the film carrier 6 and the second cutting knife 7 can be ignored). Before cutting the film, the film needs to be tightened and fixed on the second cutting knife 7 so that the size of the cut film is more accurate. The film can be first laid flat on the plane formed by the second cutting knife 7 and the film carrier 6. The four corners of the film can be fixed to the side wall or bottom end of the film carrier 6, and the film is in a horizontally straightened state at the edge of the second cutting knife 7. When cutting the film, the driving component drives the first cutting knife 14 to press down. The second cutting knife 7 can enter the installation groove 16 of the first cutting knife 14. Part of the edge of the installation groove 16 presses down the film carrier 6. After the film carrier 6 is stressed, it moves downward (the elastic component is compressed). The first cutting knife 14 and the second cutting knife 7 cooperate to cut the film. The cut part of the film is always in a straightened plane. The first cutting knife 14 and the second cutting knife 7 can cut according to the preset position, making the size of the cut film more accurate. After cutting is completed, the first cutting knife 14 moves upward, and the film carrier 6 moves upward under the action of the elastic component until it is at the same vertical height as the first cutting knife 14. If there is no assistance from the film carrier 6 and the film is directly fixed on the second cutting knife 7 for cutting, the film bends downward at the edge of the second cutting knife 7 for fixation. The first cutting knife 14 and the second cutting knife 7 cut the bent part of the film, and there will be an error between the size of the finally obtained film and the standard size.
[0038] Further, in the utility model, the elastic component includes a return spring 5. One end of the return spring 5 is connected to the mold mounting substrate 1, and the other end of the return spring 5 is connected to the film carrier 6.
[0039] In this embodiment, when cutting the film, the second cutting knife 7 will enter the installation groove 16 of the first cutting knife 14. The edge of the installation groove 16 presses down the film carrier 6, and the film carrier 6 moves downward (the return spring 5 is compressed). The above cutting process can make the size of the cut film more accurate. After cutting is completed, the first cutting knife 14 moves upward, and the film carrier 6 moves upward under the action of the return spring 5 until it is at the same vertical height as the first cutting knife 14.
[0040] Further, in the utility model, return springs 5 are connected between the four corners of the film carrier 6 and the mold mounting substrate 1.
[0041] In this embodiment, the return springs 5 at the four corners of the film carrier 6 can make the film carrier 6 more stable during the rising or pressing process, avoid the problem of tilting, and make the size of the cut film more accurate.
[0042] Further, in the utility model, a guide rod 4 is further included. The film carrier 6 is provided with a guide opening adapted to the guide rod 4. The return spring 5 is sleeved on the guide rod 4, and the guide rod 4 is connected to the mold mounting substrate 1.
[0043] In this embodiment, one end of the guide rod 4 is connected to the mold mounting substrate 1, and the other end of the guide rod 4 extends to the guide port of the diaphragm carrier 6 (the size of the guide rod 4 is adapted to the guide port). The return spring 5 is sleeved on the guide rod 4. When the diaphragm carrier 6 moves up or down, the return spring 5 is deformed. The deformed return spring 5 is more stable under the limiting action of the guide rod 4, avoiding the problem of dislocation of the return spring 5.
[0044] Furthermore, in the utility model, there is also a punching assembly. The punching assembly includes a plurality of punch heads 15. The first cutting knife 14 is provided with a mounting groove 16, and a plurality of punch heads 15 are installed in the mounting groove 16. The second cutting knife 7 is provided with a plurality of first punch holes 9, and the plurality of punch heads 15 correspond to the plurality of first punch holes 9 one by one.
[0045] In this embodiment, during the production process of the diaphragm, not only the edges need to be cut, but also the diaphragm needs to be punched. Only after punching can the diaphragm be installed in the gas meter. A total of fourteen punch heads 15 need to be installed in the mounting groove 16 of the first cutting knife 14. Twelve punch heads 15 are installed on the circumferential side of the mounting groove 16, and two punch heads 15 are installed in the middle of the mounting groove 16. The second cutting knife 7 needs to be installed with a total of fourteen punch holes 15 for the punch heads. Twelve punch holes 15 for the punch heads are installed on the circumferential side of the second cutting knife 7, and two punch holes 15 for the punch heads are installed in the middle of the second cutting knife 7. When the first cutting knife 14 presses down and cooperates with the second cutting knife 7 for cutting, the fourteen punch holes 15 of the second cutting knife 7 respectively avoid the fourteen punch heads 15 of the first cutting knife 14, which can not only accurately cut the edges of the diaphragm, but also accurately punch the diaphragm.
[0046] Furthermore, in the utility model, there is also a pressing member 11, which is used for pressing and cooperating with the second cutting knife 7. The pressing member 11 is provided with a plurality of second punch holes 8, and the plurality of punch heads 15 correspond to the plurality of second punch holes 8 one by one. The pressing member 11 can reciprocate along the depth direction of the mounting groove 16.
[0047] In this embodiment, when cutting the film, the first cutting knife 14 is pressed down to cooperate with the second cutting knife 7 for cutting, and the pressing member 11 is below the first cutting knife 14. The pressing member 11 first acts on the second cutting knife 7. The pressing member 11 can press the film placed on the second cutting knife 7 to prevent the film from shifting during the subsequent cutting process, affecting the dimensional accuracy of the film after processing. After the pressing member 11 presses the film, the first cutting knife continues to move downward, but the pressing member 11 no longer moves downward, and the pressing member 11 moves relative to the first cutting knife. The mounting groove 16 of the knife 14 moves upward, and the pressing member 11 presses the membrane in real time. The first cutting knife 14 continues to move toward the second cutting knife 7 to cut the membrane. The size of the pressed membrane is more accurate after cutting. The multiple punches 15 in the mounting groove 16 of the first cutting knife 14 all pass through the corresponding second punch holes 8. When the first cutting knife 14 is pressed toward the second cutting knife 7 for cutting, the multiple first punch holes 9 and the multiple second punch holes 8 all avoid the multiple punches 15, so that the punches 15 can punch the membrane.
[0048] Furthermore, in the utility model, first limiting members 13 are installed on both sides of the installation groove 16 , and second limiting members 12 cooperating with the first limiting members 13 are provided on both sides of the pressing member 11 .
[0049] In this embodiment, the groove depth of the mounting groove 16 is greater than the thickness of the clamping piece 11, and the clamping piece 11 can move up or down in the mounting groove 16. In the initial state, the clamping piece 11 is at the lower side of the mounting groove 16 under the action of gravity (the second limit piece 12 of the clamping piece 11 cooperates with the first limit piece 13 of the mounting groove 16, and the clamping piece 11 will not separate from the mounting groove 16). When the first cutting knife 14 is pressed down to cooperate with the second cutting knife 7 for cutting, the clamping piece 11 is pressed down to the second cutting knife 7 and presses the membrane placed on the second cutting knife 7. When the first cutting knife 14 continues to be pressed down, the clamping piece 11 no longer moves down, so that when the first cutting knife 14 cooperates with the second cutting knife 7 for cutting, the clamping piece 11 can press the membrane to avoid the problem of membrane displacement affecting the cutting accuracy.
[0050] Furthermore, the utility model also includes a limiting rod. The second cutting knife 7 is connected to the mold mounting base plate 1 by bolts. The second cutting knife 7 is provided with a first limiting hole 10. The mold mounting base plate 1 is provided with a second limiting hole. The limiting rod can pass through the first limiting hole 10 and the second limiting hole in sequence.
[0051] In this embodiment, the second cutting knife 7 and the die mounting substrate 1 are detachably connected by bolts, which facilitates the replacement and maintenance of the second cutting knife 7. The cutting knife is provided with two first limiting holes 10, and the die mounting substrate 1 is provided with two second limiting holes. The two first limiting holes 10 correspond to the two second limiting holes one by one. When the second cutting knife 7 is installed on the die mounting substrate 1, the limiting rod is first passed through the first limiting hole 10 and the second limiting hole in sequence to limit the second cutting knife 7 on the die mounting substrate 1, and then the second cutting knife 7 is fixed to the die mounting substrate 1 by bolts, avoiding the problem of position deviation when the second cutting knife 7 is directly fixed to the die mounting substrate 1, which affects the subsequent film cutting accuracy.
[0052] Further, in the utility model, the driving assembly includes a cylinder and a connecting shaft; the cylinder is installed on the top plate 2 of the frame, one end of the connecting shaft is connected to the cylinder, and the other end of the connecting shaft is connected to the first cutting knife 14.
[0053] In this embodiment, the cylinder can control the connecting shaft to drive the first cutting knife 14 to press down. The downward pressing of the first cutting knife 14 can cooperate with the cutting of the second cutting knife 7 to precisely cut the edge of the film at one time.
[0054] In summary, the embodiment of the present utility model provides a gas skin film trimming device. When the first cutting knife 14 presses down towards the second cutting knife 7, the surplus material at the edge of the film can be cut off at one time, without repeatedly manually moving the film to cut its edge. While improving the cutting efficiency, it also improves the safety when cutting the film; the size of the second cutting knife 7 is designed to be adapted to the size of the finished film, and the size of the installation groove 16 of the first cutting knife 14 is slightly larger than that of the second cutting knife 7 (the gap between the second cutting knife 7 and the installation groove 16 can be ignored), which not only makes the size of the cut film more accurate, but also avoids the problem of burrs generated after film cutting. The film without burrs has stronger sealing performance after being installed in the gas meter.
[0055] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A gas surface membrane trimming device, characterized in that: It includes a first cutting knife, a second cutting knife, a frame top plate, a mold mounting base plate, a supporting assembly and a driving assembly; The support assembly is installed between the frame top plate and the mold installation base plate; The driving assembly is mounted on the top plate of the frame, the driving assembly is connected to the first cutting knife, the second cutting knife is mounted on the mold mounting base plate, the driving assembly can control the first cutting knife to cooperate with the second cutting knife in cutting, and the first cutting knife can perform a one-time cutting on the edge of the second cutting knife.
2. The gas surface membrane trimming device according to claim 1, characterized in that: The second cutting assembly includes a film bearing member, the film bearing member is sleeved on the second cutting knife, and an elastic member is installed between the film bearing member and the mold mounting base plate; When the elastic member is in the initial state, the vertical heights of the membrane bearing member and the second cutting knife are equal; When the elastic member is compressed, the membrane support member moves toward the mold mounting substrate.
3. The gas surface membrane trimming device according to claim 2, characterized in that: The elastic member includes a return spring, one end of which is connected to the mold mounting base plate, and the other end of which is connected to the membrane bearing member.
4. The gas surface membrane trimming device according to claim 3, characterized in that: The return springs are connected between the four corners of the membrane bearing member and the mold mounting base plate.
5. The gas surface membrane trimming device according to claim 3 or 4, characterized in that: It also includes a guide rod, the membrane bearing component is provided with a guide port adapted to the guide rod, the return spring is sleeved on the guide rod, and the guide rod is connected to the mold mounting base plate.
6. The gas surface membrane trimming device according to any one of claims 1 to 4, characterized in that: It also includes a punching assembly, which includes a plurality of punches. The first cutting knife is provided with a mounting groove, and the mounting groove is used to mount the plurality of punches. The second cutting knife is provided with a plurality of first punch holes, and the plurality of punches correspond one to one with the plurality of first punch holes.
7. The gas surface membrane trimming device according to claim 6, characterized in that: It also includes a pressing member, which is used for pressing and matching with the second cutting knife; The pressing member is provided with a plurality of second punch holes, and the plurality of punches correspond to the plurality of the second punch holes one by one; The pressing member can reciprocate along the groove depth direction of the installation groove.
8. The gas surface membrane trimming device according to claim 7, characterized in that: First limiting members are installed on both sides of the installation groove, and second limiting members cooperating with the first limiting members are provided on both sides of the pressing member.
9. The gas surface membrane trimming device according to any one of claims 1 to 4, characterized in that: It also includes a limiting rod, the second cutting knife is connected to the mold mounting base plate by bolts, the second cutting knife is provided with a first limiting hole, the mold mounting base plate is provided with a second limiting hole, and the limiting rod can pass through the first limiting hole and the second limiting hole in sequence.
10. The gas surface membrane trimming device according to any one of claims 1 to 4, characterized in that: It also includes a limiting rod, and the driving assembly includes a cylinder and a connecting shaft; The cylinder is installed on the frame top plate, one end of the connecting shaft is connected to the cylinder, and the other end of the connecting shaft is connected to the first cutting knife.