Anti-expansion coupling for injection mechanism of injection molding machine
By adding a torque-resistant reinforcement device to the outside of the transmission shaft sleeve of the anti-swell coupling with the injection mechanism of the injection molding machine, the problem of damage to the anti-swell coupling due to excessive torque during the transmission process is solved, and more stable and efficient transmission performance.
Patent Information
- Application Number
- CN202421532919.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The anti-swell coupling of the injection mechanism of the injection molding machine is prone to deformation and damage due to excessive torque during transmission, resulting in loss of effect.
An anti-swell coupling including a transmission shaft sleeve and a torque-resistant reinforcement device is designed. The torque-resistant reinforcement device is fixed to the connection of the transmission shaft sleeve through components such as anti-torque columns, connecting screws, fixing nuts and hexagonal anti-rotating holes. Between the flanges, help resist the torque generated during transmission.
It effectively avoids deformation and damage caused by excessive torque when transmitting greater kinetic energy, ensuring the stable and efficient state of the anti-swell coupling and extending its service life.
Smart Images
Figure CN222526728U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to couplings, and in particular relates to an anti-expansion coupling for an injection mechanism of an injection molding machine. Background Art
[0002] The anti-expansion coupling for the injection mechanism of the injection molding machine is a device used to connect the hydraulic system and the mechanical transmission system in the injection mechanism. It is mainly used to prevent the parts in the mechanical transmission system from being damaged or malfunctioning due to hydraulic shock or hydraulic expansion and contraction in the hydraulic system. At the same time, the anti-expansion coupling can also effectively reduce the vibration and noise in the transmission system and improve the stability and working efficiency of the machine. In the working process of the injection molding machine, the stability and precision of the injection mechanism play a vital role in the product quality, and the use of the anti-expansion coupling can better ensure the normal operation and long life of the injection mechanism. Therefore, the anti-expansion coupling for the injection mechanism of the injection molding machine is a very important and necessary device.
[0003] However, when the injection mechanism of the injection molding machine uses an anti-expansion coupling for transmission on the injection rod of the injection mechanism, the anti-expansion coupling plays the role of power transmission. However, when the input power increases, the anti-expansion coupling that plays a transmission role will increase the power output accordingly, which will increase the torque borne by the anti-expansion coupling. Once the output power increases again, the torque borne by the anti-expansion coupling will be even greater. This will easily cause the anti-expansion coupling to accidentally withstand an increase in torque and cause deformation and damage, causing the anti-expansion coupling to lose its function. Utility Model Content
[0004] The purpose of the utility model is to provide an anti-expansion coupling for the injection mechanism of an injection molding machine, so as to solve the problem proposed in the above background technology that when the input power increases, the anti-expansion coupling that plays a transmission role will increase the power output accordingly, which will increase the torque borne by the anti-expansion coupling. Once the output power increases again, the torque borne by the anti-expansion coupling will be even greater, which will easily cause the anti-expansion coupling to accidentally increase the torque borne and cause deformation and damage.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-expansion coupling for an injection mechanism of an injection molding machine, comprising a transmission sleeve and a connecting flange B arranged at the left end of the transmission sleeve, a connecting flange C arranged at the right end of the transmission sleeve, a connecting flange A arranged at the left side of the connecting flange B, a connecting flange D arranged at the right side of the connecting flange C, the connecting flange B and the connecting flange A as well as the connecting flange C and the connecting flange D are fixedly connected by a plurality of flange connecting bolts, and an anti-torsion reinforcement device is connected between the connecting flange B and the connecting flange C;
[0006] The anti-torque reinforcement device includes an anti-torque column A, a connecting screw, a fixing nut A, a fixing nut B, an anti-torque column B, a bolt through hole A and a bolt through hole B. The bolt through hole A is arranged inside one-third of the right end of the anti-torque column A, and the bolt through hole B is arranged inside one-third of the left end of the anti-torque column B. The left and right ends of the connecting screw respectively penetrate the bolt through hole A and the bolt through hole B. The left and right sides of the center of the connecting screw are respectively threadedly sleeved with fixing nuts A and fixing nuts B. The fixing nuts A and fixing nuts B are both located between the anti-torque column A and the anti-torque column B.
[0007] Preferably, the anti-torsion reinforcement device also includes a hexagonal anti-rotation hole A, a hexagonal connecting head and a hexagonal anti-rotation hole B. The left end of the bolt through hole A is provided with a hexagonal anti-rotation hole A, and the hexagonal anti-rotation hole A is located inside the anti-torsion column A. The left end of the hexagonal anti-rotation hole A is sleeved on the outside of the flange connecting bolt on the connecting flange B. The right end of the bolt through hole B is provided with a hexagonal anti-rotation hole B, and the hexagonal anti-rotation hole B is located inside the anti-torsion column B. The right end of the hexagonal anti-rotation hole B is sleeved on the outside of the flange connecting bolt on the connecting flange C.
[0008] Preferably, the left and right ends of the connecting screw are provided with hexagonal connecting heads, and the two hexagonal connecting heads are respectively located inside the hexagonal anti-rotation hole A and the hexagonal anti-rotation hole B, and the cross-sectional shapes of the hexagonal connecting head, the hexagonal anti-rotation hole A and the hexagonal anti-rotation hole B are all regular hexagons, and the distances between the six outer walls of the hexagonal connecting head and the six inner walls of the hexagonal anti-rotation hole A and the hexagonal anti-rotation hole B are all less than 0.1 mm.
[0009] Preferably, the two ends of the connecting screw can move left and right inside the bolt through hole A and the bolt through hole B respectively, the hexagonal connecting head can move left and right inside the hexagonal anti-rotation hole A and the hexagonal anti-rotation hole B respectively, and the fixing nut A and the fixing nut B can rotate clockwise and counterclockwise and move left and right outside the connecting screw through the pushing action of the thread.
[0010] Preferably, a plurality of anti-expansion metal diaphragms are provided between the connecting flange A and the connecting flange B, and between the connecting flange C and the connecting flange D, and the flange connecting bolts pass through the plurality of anti-expansion metal diaphragms, and the plurality of anti-expansion metal diaphragms are tightly fitted to each other.
[0011] Preferably, a connecting sleeve A is provided at the left end of the connecting flange A, a connecting sleeve B is provided at the right end of the connecting flange D, and the centers of the connecting sleeve A, the transmission sleeve and the connecting sleeve B are on the same straight line.
[0012] Preferably, the inner walls of the rear ends of the connecting sleeves A and B are both provided with pin grooves, and the front ends of the connecting sleeves A and B are both threadedly inserted with transmission connecting bolts at their centers.
[0013] Preferably, the connecting sleeve A and the connecting sleeve B are of the same shape, size and structural composition, and the outer walls of the connecting sleeve A and the connecting sleeve B are sprayed with paint for corrosion and rust prevention.
[0014] Compared with the prior art, the utility model provides an anti-expansion coupling for an injection mechanism of an injection molding machine, which has the following beneficial effects:
[0015] The utility model adds a plurality of novel anti-torque reinforcing devices to the circular outer side of the transmission shaft sleeve of the anti-expansion coupling for the injection mechanism of the injection molding machine. The anti-torque reinforcing devices can help the transmission shaft sleeve resist the torque generated during transmission when the transmission shaft sleeve performs power transmission, so as to avoid deformation and damage caused by excessive torque borne by the transmission shaft sleeve when transmitting greater kinetic energy. The number of anti-torque reinforcing devices used can be increased or decreased according to the size of the power transmitted by the transmission shaft sleeve. After the number of anti-torque reinforcing devices used is increased, it can help the transmission shaft sleeve resist stronger and greater torque output, so that the anti-expansion coupling for the injection mechanism of the injection molding machine can always maintain a stable and efficient state for transmission. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The utility model is a schematic diagram of a three-dimensional structure of an anti-expansion coupling for an injection mechanism of an injection molding machine from a side view.
[0017] Figure 2 The utility model is a schematic diagram of the side plane structure of an anti-expansion coupling for an injection mechanism of an injection molding machine.
[0018] Figure 3 It is a schematic diagram of the external three-dimensional structure of the anti-torque reinforcement device of the utility model.
[0019] Figure 4 It is a schematic diagram of the internal planar structure of the anti-torque reinforcement device of the utility model.
[0020] In the figure: 1. Connecting sleeve A; 2. Connecting flange A; 3. Connecting flange B; 4. Transmission sleeve; 5. Anti-torsion reinforcement device; 6. Connecting flange C; 7. Connecting flange D; 8. Connecting sleeve B; 9. Pin groove; 10. Transmission connecting bolt; 11. Anti-expansion metal diaphragm; 12. Flange connecting bolt; 13. Anti-torsion column A; 14. Connecting screw; 15. Fixing nut A; 16. Fixing nut B; 17. Anti-torsion column B; 18. Hexagonal anti-rotation hole A; 19. Bolt through hole A; 20. Bolt through hole B; 21. Hexagonal connecting head; 22. Hexagonal anti-rotation hole B. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] The utility model provides Figure 1-4The anti-expansion coupling for the injection mechanism of an injection molding machine shown in the figure includes a transmission sleeve 4 and a connecting flange B3 arranged at the left end of the transmission sleeve 4, a connecting flange C6 is arranged at the right end of the transmission sleeve 4, a connecting flange A2 is arranged on the left side of the connecting flange B3, and a connecting flange D7 is arranged on the right side of the connecting flange C6. The connecting flange B3 and the connecting flange A2, as well as the connecting flange C6 and the connecting flange D7 are fixedly connected by a plurality of flange connecting bolts 12, and a plurality of anti-expansion metal diaphragms 11 are arranged between the connecting flange A2 and the connecting flange B3, as well as between the connecting flange C6 and the connecting flange D7, and the flange connecting bolts 12 pass through the plurality of anti-expansion metal diaphragms. 11, and at the same time, the plurality of anti-expansion metal diaphragms 11 are tightly fitted, a connecting sleeve A1 is arranged at the left end of the connecting flange A2, a connecting sleeve B8 is arranged at the right end of the connecting flange D7, and the connecting sleeve A1 and the centers of the transmission sleeve 4 and the connecting sleeve B8 are on the same straight line, the inner walls of the rear ends of the connecting sleeves A1 and the connecting sleeves B8 are both provided with pin shaft grooves 9, and the front ends of the connecting sleeves A1 and the connecting sleeves B8 are both threadedly plugged with transmission connecting bolts 10, the connecting sleeves A1 and the connecting sleeves B8 are the same in shape, size and structural composition, and the outer walls of the connecting sleeves A1 and the connecting sleeves B8 are sprayed with paint for corrosion and rust prevention, and the injection molding is used for assembly. When the anti-expansion coupling is used for the injection molding machine injection mechanism, firstly, a plurality of anti-expansion metal diaphragms 11 need to be superimposed on each other and fit on the outer wall of the left end of the connecting flange B3, and the bolt holes on the plurality of anti-expansion metal diaphragms 11 that fit on each other need to overlap one by one, and then the connecting flange A2 at the right end of the connecting sleeve A1 is fit on the left end of the anti-expansion metal diaphragm 11, and a plurality of flange connecting bolts 12 are used to firmly fix the connecting flange A2 and the connecting flange B3. At this time, the plurality of anti-expansion metal diaphragms 11 between the connecting flange A2 and the connecting flange B3 will fit closely to each other to avoid affecting the transmission of the injection molding machine injection mechanism using the anti-expansion coupling, and then the same The connecting flange D7 at the left end of the connecting sleeve B8 and the connecting flange C6 at the right end of the transmission sleeve 4 are connected and fixed by the flange connecting bolts 12, and then the anti-expansion coupling needs to be installed at the position where the transmission is required on the injection mechanism of the injection molding machine, so that the input shaft on the injection mechanism of the injection molding machine is inserted into the connecting sleeve A1, and the output shaft is inserted into the connecting sleeve B8, and the input shaft and the output shaft are fixedly connected by the transmission connecting bolts 10, and the pins on the input shaft and the output shaft are respectively inserted into the pin grooves 9 inside the connecting sleeve A1 and the connecting sleeve B8, so as to ensure that the anti-expansion coupling for the injection mechanism of the injection molding machine can be normally transmitted.
[0023] like Figure 1 , Figure 3 and Figure 4As shown, an anti-torsion reinforcement device 5 is connected between the connecting flange B3 and the connecting flange C6, and the anti-torsion reinforcement device 5 includes an anti-torsion column A13, a connecting screw 14, a fixing nut A15, a fixing nut B16, an anti-torsion column B17, a bolt through hole A19 and a bolt through hole B20. The right end of the anti-torsion column A13 is internally provided with a bolt through hole A19 at one-third of the body, and the left end of the anti-torsion column B17 is internally provided with a bolt through hole B20. The left and right ends of the connecting screw 14 penetrate the bolt through hole A19 and the bolt through hole B20 respectively. The left and right sides of the center of the connecting screw 14 are respectively threadedly sleeved with a fixing nut A15 and a fixing nut B16 on the outside, and the fixing nut A15 and the fixing nut B16 are both located between the anti-torsion column A13 and the anti-torsion column B17. The anti-torsion reinforcement device 5 also includes a hexagonal anti-rotation hole A18, a hexagonal connector 21 and a hexagonal anti-rotation hole B2 2. A hexagonal anti-rotation hole A18 is provided at the left end of the bolt through hole A19, and the hexagonal anti-rotation hole A18 is located inside the anti-torsion column A13. The left end of the hexagonal anti-rotation hole A18 is sleeved on the outside of the flange connection bolt 12 on the connecting flange B3. A hexagonal anti-rotation hole B22 is provided at the right end of the bolt through hole B20, and the hexagonal anti-rotation hole B22 is located inside the anti-torsion column B17. The right end of the hexagonal anti-rotation hole B22 is sleeved on the flange connection on the connecting flange C6. Outside the bolt 12, hexagonal connecting heads 21 are provided at both ends of the connecting screw 14. The two hexagonal connecting heads 21 are respectively located inside the hexagonal anti-rotation hole A18 and the hexagonal anti-rotation hole B22. The cross-sectional shapes of the hexagonal connecting head 21 and the hexagonal anti-rotation hole A18 and the hexagonal anti-rotation hole B22 are all regular hexagons, and the distances between the six outer walls of the hexagonal connecting head 21 and the six inner walls of the hexagonal anti-rotation hole A18 and the hexagonal anti-rotation hole B22 are all less than 0.1 mm.
[0024] like Figure 1 , Figure 3 and Figure 4As shown, the two ends of the connecting screw 14 can move left and right inside the bolt through hole A19 and the bolt through hole B20 respectively, the hexagonal connecting head 21 can move left and right in the hexagonal anti-rotation hole A18 and the hexagonal anti-rotation hole B22 respectively, the fixing nut A15 and the fixing nut B16 can move left and right on the outside of the connecting screw 14 through the threaded pushing action by rotating clockwise and counterclockwise. After the entire injection molding machine injection mechanism is installed on the injection molding machine injection mechanism with the anti-expansion coupling, in order to increase the anti-torsion torque effect of the anti-expansion coupling, it is necessary to install a single or multiple anti-torsion reinforcement devices 5 between the connecting flange B3 and the connecting flange C6 on the outside of the transmission shaft sleeve 4. During the specific installation, it is necessary to rotate the fixing screw The mother A15 and the fixing nut B16 are rotated to the outside of both sides of the center of the connecting screw 14, and then the anti-torsion column A13 is pushed to the right and the anti-torsion column B17 is pushed to the left, so that the right end of the anti-torsion column A13 is attached to the outer wall of the left end of the fixing nut A15, and the left end of the anti-torsion column B17 is attached to the outer wall of the right end of the fixing nut B16. At this time, the entire anti-torsion reinforcement device 5 is in the shortest state, and then the entire device is directly placed horizontally between the connecting flange B3 and the connecting flange C6, and then the fixing nut A15 and the fixing nut B16 are rotated in the opposite direction, so that the fixing nut A15 and the fixing nut B16 are respectively pushed to the left and the left. Push the anti-torque column A13 and the anti-torque column B17 to the right, which will make the anti-torque column A13 and the anti-torque column B17 close to the flange connection bolts 12 on the connecting flange A2 and the connecting flange B3 respectively, until the anti-torque column A13 passes through the hexagonal anti-rotation hole A18 and the anti-torque column B17 passes through the hexagonal anti-rotation hole B22 and is respectively sleeved on the outside of the flange connection bolts 12 on the connecting flange B3 and the connecting flange C6, and then continue to rotate the two fixing nuts, and finally make the anti-torque column A13 and the anti-torque column B17 firmly against the connecting flange B3 and the connecting flange C6 respectively, so that the entire anti-torque reinforcement device 5 will be fixed between the connecting flange B3 and the connecting flange C6. When the transmission sleeve 4 is transmitted through the connecting flanges at both ends, the anti-torque reinforcing device 5 fixed between the two connecting flanges can help the transmission sleeve 4 resist the torsional moment generated during transmission, thereby preventing the transmission sleeve 4 from being subjected to excessive torsional force and being easily deformed and damaged. In addition, because the anti-torque column A13 and the anti-torque column B17 are respectively sleeved on the outside of the flange connecting bolts 12 on the two connecting flanges through the hexagonal anti-rotation holes A18 and the hexagonal anti-rotation holes B22, the flange connecting bolts 12 can be prevented from deflecting during transmission, thereby ensuring that the flange connecting bolts 12 can always maintain the best fixed state to play a connecting and fixing role.
[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An anti-expansion coupling for an injection mechanism of an injection molding machine, comprising a transmission sleeve (4) and a connecting flange B (3) arranged at the left end of the transmission sleeve (4), a connecting flange C (6) arranged at the right end of the transmission sleeve (4), a connecting flange A (2) arranged on the left side of the connecting flange B (3), and a connecting flange D (7) arranged on the right side of the connecting flange C (6), the connecting flange B (3) and the connecting flange A (2) as well as the connecting flange C (6) and the connecting flange D (7) are fixedly connected by a plurality of flange connecting bolts (12), characterized in that: An anti-torsion reinforcement device (5) is connected between the connecting flange B (3) and the connecting flange C (6); The anti-torsion reinforcing device (5) comprises an anti-torsion column A (13), a connecting screw (14), a fixing nut A (15), a fixing nut B (16), an anti-torsion column B (17), a bolt through hole A (19) and a bolt through hole B (20); the right end of the anti-torsion column A (13) is provided with a bolt through hole A (19); the left end of the anti-torsion column B (17) is provided with a bolt through hole B (20); the left and right ends of the connecting screw (14) respectively penetrate the bolt through hole A (19) and the bolt through hole B (20); the left and right sides of the center of the connecting screw (14) are respectively threadedly sleeved with a fixing nut A (15) and a fixing nut B (16); the fixing nut A (15) and the fixing nut B (16) are both located between the anti-torsion column A (13) and the anti-torsion column B (17).
2. The anti-expansion coupling for the injection mechanism of an injection molding machine according to claim 1, characterized in that: The anti-torsion reinforcing device (5) further comprises a hexagonal anti-rotation hole A (18), a hexagonal connecting head (21) and a hexagonal anti-rotation hole B (22); the left end of the bolt through hole A (19) is provided with a hexagonal anti-rotation hole A (18), and the hexagonal anti-rotation hole A (18) is located inside the anti-torsion column A (13); the left end of the hexagonal anti-rotation hole A (18) is sleeved on the outside of the flange connecting bolt (12) on the connecting flange B (3); the right end of the bolt through hole B (20) is provided with a hexagonal anti-rotation hole B (22), and the hexagonal anti-rotation hole B (22) is located inside the anti-torsion column B (17); the right end of the hexagonal anti-rotation hole B (22) is sleeved on the outside of the flange connecting bolt (12) on the connecting flange C (6).
3. The anti-expansion coupling for the injection mechanism of an injection molding machine according to claim 2, characterized in that: The connecting screw rod (14) is provided with a hexagonal connector (21) at both left and right ends. The two hexagonal connectors (21) are respectively located inside the hexagonal anti-rotation hole A (18) and the hexagonal anti-rotation hole B (22). The cross-sectional shapes of the hexagonal connector (21) and the hexagonal anti-rotation hole A (18) and the hexagonal anti-rotation hole B (22) are all regular hexagons, and the distances between the six outer walls of the hexagonal connector (21) and the six inner walls of the hexagonal anti-rotation hole A (18) and the hexagonal anti-rotation hole B (22) are all less than 0.1 mm.
4. The anti-expansion coupling for the injection mechanism of an injection molding machine according to claim 3, characterized in that: The two ends of the connecting screw (14) can move left and right inside the bolt through hole A (19) and the bolt through hole B (20) respectively, the hexagonal connecting head (21) can move left and right inside the hexagonal anti-rotation hole A (18) and the hexagonal anti-rotation hole B (22) respectively, and the fixing nut A (15) and the fixing nut B (16) can move left and right outside the connecting screw (14) through the pushing action of the thread by rotating clockwise or counterclockwise.
5. The anti-expansion coupling for the injection mechanism of an injection molding machine according to claim 1, characterized in that: A plurality of anti-expansion metal diaphragms (11) are arranged between the connecting flange A (2) and the connecting flange B (3) and between the connecting flange C (6) and the connecting flange D (7), and the flange connecting bolts (12) pass through the plurality of anti-expansion metal diaphragms (11), and the plurality of anti-expansion metal diaphragms (11) are tightly fitted to each other.
6. The anti-expansion coupling for the injection mechanism of an injection molding machine according to claim 1, characterized in that: A connecting sleeve A (1) is disposed at the left end of the connecting flange A (2), and a connecting sleeve B (8) is disposed at the right end of the connecting flange D (7), and the centers of the connecting sleeve A (1), the transmission sleeve (4) and the connecting sleeve B (8) are on the same straight line.
7. The anti-expansion coupling for the injection mechanism of an injection molding machine according to claim 6, characterized in that: The inner walls of the rear ends of the connecting sleeve A (1) and the connecting sleeve B (8) are both provided with a pin shaft groove (9), and the centers of the front ends of the connecting sleeve A (1) and the connecting sleeve B (8) are both threadedly plugged with a transmission connecting bolt (10).
8. The anti-expansion coupling for the injection mechanism of an injection molding machine according to claim 7, characterized in that: The connecting shaft sleeve A (1) and the connecting shaft sleeve B (8) are of the same shape, size and structural composition, and the outer walls of the connecting shaft sleeve A (1) and the connecting shaft sleeve B (8) are sprayed with paint for corrosion and rust prevention.