Injection molding machine nozzle rubber head dismounting and mounting device

Abstract

The invention relates to the technical field of injection molding machine maintenance equipment, in particular to an injection molding machine nozzle rubber head dismounting and mounting device which comprises a fixing clamp. The holding mechanism is used for supporting the fixing clamp; the limiting mechanism is used for limiting rotation of the holding mechanism; the driving mechanism is used for driving the fixing clamp to rotate; the holding mechanism is arranged at one end of the fixing clamp, and the limiting mechanism and the driving mechanism are arranged on the holding mechanism. According to the nozzle rubber head dismounting device, the fixing clamps, the holding mechanism and the driving mechanism are combined, the two fixing clamps can be driven through air pressure, dismounting operation is achieved, due to the fact that the fixing clamps and the driving mechanism are small in size, the nozzle rubber head dismounting device can adapt to working conditions of different environments, and the situation that the dismounting operation of the nozzle rubber head is limited by the environment of an operation site is avoided. The piston rod and the piston cylinder can be mounted on the handle through the detachable driving mechanism, so that the nozzle rubber head is unscrewed through the driving mechanism under the condition that the nozzle rubber head is difficult to pull in the initial stage of disassembly, manual disassembly can be performed in the later stage of disassembly, and the disassembly efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine maintenance equipment technology, specifically to an injection molding machine nozzle disassembly and assembly device. Background Technology

[0002] The injection nozzle of an injection molding machine is a key component in the injection molding process. Operating under high temperature and pressure for extended periods, it is prone to wear, blockage, or solidification of residual material, requiring regular disassembly, cleaning, or replacement. Due to the high operating temperature of the nozzle, disassembly at this temperature can easily burn workers. Waiting for the nozzle to cool down takes a significant amount of time, impacting subsequent production. Furthermore, threaded connections often seize up due to high-temperature plastic leakage or thermal stress, making disassembly of the nozzle extremely inconvenient.

[0003] In existing technologies, the disassembly and assembly of injection molding machine nozzle heads mainly rely on external power-assisted tools, such as large hydraulic cylinder removers, separate hydraulic pumps with clamps, or pneumatic impact wrenches. While these methods provide greater disassembly force, they also have some drawbacks. The equipment is typically bulky, requires additional hydraulic stations or high-capacity air sources, and is inconvenient to move and set up in crowded production workshops. Therefore, we propose an injection molding machine nozzle head disassembly and assembly device. Summary of the Invention

[0004] The purpose of this invention is to provide a nozzle assembly / disassembly device for injection molding machines, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A device for removing and installing a nozzle head for an injection molding machine, including a fixing clamp; A gripping mechanism for supporting the clamping clamp; A limiting mechanism is used to restrict the rotation of the gripping mechanism; The drive mechanism is used to drive the fixed clamp to rotate; The gripping mechanism is located at one end of the fixed clamp, and the limiting mechanism and the driving mechanism are located on the gripping mechanism.

[0006] Preferably, the gripping mechanism includes a handle, which is detachably connected to the end of the clamping clamp. A buffer spring is fixedly connected to the handle, and a mounting hole is provided on the handle. One end of the clamping clamp passes through the mounting hole.

[0007] Preferably, a mounting rod is fixedly connected to the end of the handle, and a locking block corresponding to the structure of the mounting rod is fixedly connected to the fixing clamp.

[0008] Preferably, the fixing clamp, the gripping mechanism and the limiting mechanism are provided in two sets. Each set of fixing clamps includes two clamp heads that are rotatably connected to each other. Each set of gripping mechanisms includes two handles that are respectively connected to the ends of the clamp heads.

[0009] Preferably, the limiting mechanism includes a limiting strip and a limiting sleeve, the limiting strip and the limiting sleeve being rotatably connected to the ends of two handles respectively, and the limiting sleeve being fitted over the outside of the limiting strip.

[0010] Preferably, the limiting sleeve has a plurality of limiting holes, which are equidistant from each other. A limiting block is rotatably connected to the limiting strip, and a limiting spring is fixedly connected to the inner side of the limiting block.

[0011] Preferably, the drive mechanism includes a connecting rod, which is detachably connected to the handle. A piston cylinder is disposed between the connecting rods, and a piston rod is slidably connected inside the piston cylinder. The end of the piston rod is rotatably connected to the connecting rod.

[0012] Preferably, the piston cylinder has a pipe connected to its side, an air pump is connected to the end of the pipe, and a solenoid valve is connected to the pipe.

[0013] By employing the above technical solution, the present invention provides an injection molding machine nozzle assembly and disassembly device that has at least the following beneficial effects: (1) The present invention uses a combination of fixed clamps, gripping mechanism and driving mechanism to drive two fixed clamps with air pressure to realize disassembly operation. Since the fixed clamps and driving mechanism are small in size, they can adapt to different working conditions and avoid the environment of the operation site from restricting the disassembly operation of the nozzle rubber head.

[0014] (2) The present invention can quickly install the piston rod and piston cylinder onto the handle through a detachable drive mechanism. In the early stage of disassembly, when it is difficult to turn the nozzle head, the nozzle head can be loosened by the drive mechanism. In the later stage of disassembly, the drive mechanism can be removed and the disassembly can be performed manually by the staff, thereby improving the disassembly efficiency of the nozzle head.

[0015] (3) The present invention can limit the two handles of the fixing clamp by setting the limiting mechanism, so that the handles are kept close to each other in the manual operation state, so that the fixing clamp can clamp and fix the corresponding structure, which facilitates the subsequent disassembly operation. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention, form part of this application: Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the limiting mechanism structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the limiting mechanism of the present invention; Figure 5 In this invention Figure 4 Enlarged view of point A; Figure 6 This is a schematic diagram of the gripping mechanism structure of the present invention; Figure 7 This is a schematic diagram of the handle structure of the present invention; Figure 8 This is a schematic diagram of the clamp head structure of the present invention.

[0017] In the diagram: 1. Fixing clamp; 11. Clamping head; 2. Grip mechanism; 21. Handle; 22. Buffer spring; 23. Mounting hole; 24. Mounting rod; 25. Clamping block; 3. Limiting mechanism; 31. Limiting strip; 32. Limiting sleeve; 33. Limiting hole; 34. Limiting spring; 35. Limiting block; 4. Drive mechanism; 41. Connecting rod; 42. Piston cylinder; 43. Piston rod; 44. Pipeline; 45. Solenoid valve. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1 A device for disassembling and assembling the nozzle of an injection molding machine, such as Figures 1-8 As shown, it includes a fixing clamp 1; one end of the fixing clamp 1 is provided with a gripping mechanism 2 for supporting the fixing clamp 1.

[0020] Specifically, the gripping mechanism 2 includes a handle 21, which is detachably connected to the end of the clamping clamp 1. A buffer spring 22 is fixedly connected to the handle 21, and a mounting hole 23 is provided on the handle 21. One end of the clamping clamp 1 passes through the mounting hole 23, and a mounting rod 24 is fixedly connected to the end of the handle 21. A locking block 25 corresponding to the structure of the mounting rod 24 is fixedly connected to the clamping clamp 1. The handle 21 is used by the operator to clamp and fix the nozzle head or the nozzle head mounting structure of the injection molding machine using the clamping clamp 1, making it convenient for the operator to disassemble the nozzle head when the nozzle head is hot. The handle 21 is connected to the clamping clamp 1 through the mounting rod 24, and one end of the clamping clamp 1 passes through the mounting hole 23 on the handle 21, so that the handle 21 forms a lever structure, using the mounting rod 24 as a fulcrum to drive the clamping clamp 1. At the same time, the buffer spring 22 on the handle 21 can buffer the handle 21 to prevent the clamping clamp 1 from being damaged by excessive clamping force. In addition, the nozzle head and mounting structure are disassembled under high temperature conditions. The handle 21 and the fixing clamp 1 are only connected by the mounting rod 24 and the buffer spring 22. Therefore, the high temperature of the nozzle head is less efficient when it is transferred to the handle 21 through the fixing clamp 1 and the mounting rod 24, thus avoiding the situation of burning hands during long-term operation.

[0021] Based on this, both the fixing clamp 1 and the gripping mechanism 2 are provided in two sets. Each set of fixing clamp 1 includes two clamp heads 11, which are rotatably connected to each other. Each set of gripping mechanism 2 includes two handles 21, which are respectively connected to the ends of the clamp heads 11. The two fixing clamps 1 are used to fix the nozzle rubber head and the mounting structure, respectively. By driving the fixing clamp 1 in opposite directions, the nozzle rubber head can be rotated off the mounting structure to achieve the disassembly operation. The middle of the clamp head 11 is a semi-circular structure, which facilitates mutual cooperation to clamp and fix the cylindrical nozzle rubber head or the mounting structure. At the same time, the end of the clamp head 11 away from the handle 21 is duckbill-shaped. The end of the clamp head 11 with the duckbill shape can clamp the end of the bolt, so that the operator can easily turn the bolt through the fixing clamp 1, which facilitates the operator to disassemble or install the bolt on the nozzle rubber head. Each set of two handles 21 can drive the two jaws 11 of the clamping clamp 1 respectively, so that the ends of the two jaws 11 can come close to each other to achieve the clamping operation, or move away from each other to loosen the clamping structure. At the same time, the two sets of handles 21 can drive and control the two clamping clamps 1 respectively.

[0022] Example 2 like Figures 1-5 As shown, based on Embodiment 1, the gripping mechanism 2 is provided with a limiting mechanism 3 to restrict the rotation of the gripping mechanism 2, so that the fixing clamp 1 is kept in a clamped state.

[0023] In this embodiment, the limiting mechanism 3 includes a limiting strip 31 and a limiting sleeve 32. The limiting strip 31 and the limiting sleeve 32 are rotatably connected to the ends of the two handles 21, and the limiting sleeve 32 is sleeved on the outside of the limiting strip 31. The limiting sleeve 32 has several limiting holes 33, which are equidistant from each other. A limiting block 35 is rotatably connected to the limiting strip 31, and a limiting spring 34 is fixedly connected to the inner side of the limiting block 35. The limiting strip 31 and the limiting sleeve 32 can limit the two handles 21 on a fixed clamp 1. When limiting is required, the end of the limiting strip 31 can be inserted into the limiting sleeve 32. When the distance between the two handles 21 is different, the depth of the limiting strip 31 inserted into the limiting sleeve 32 is different. At the same time, when the limiting strip 31 is inserted into the limiting sleeve 32, the limiting block 35 on the limiting strip 31 corresponds to the limiting hole 33. The limiting block 35 is a plate-shaped or strip-shaped structure. At the same time, one side of the limiting block 35 is rotatably connected to the limiting strip 31. The limiting spring 34 structure can keep the limiting block 35 in an open state. Meanwhile, the rotation axis of the limiting block 35 is located on the side close to the limiting sleeve 32. Therefore, when the limiting strip 31 is inserted into the limiting sleeve 32, the limiting sleeve 32 can drive the limiting block 35 to move closer to the limiting strip 31, allowing the limiting strip 31 to be inserted normally into the limiting sleeve 32. At the same time, when the limiting strip 31 moves outward and is pulled out, the limiting block 35 springs up under the action of the limiting spring 34 and cooperates with the limiting hole 33 to restrict the limiting strip 31 inside the limiting sleeve 32, thereby keeping the clamping clamp 1 in a clamped state. The limiting mechanism 3 is provided in two sets, and the two sets of limiting mechanisms 3 can respectively perform limiting operations on the handles 21 of the two clamping clamps 1.

[0024] In use, the injection molding machine nozzle assembly / disassembly device of the present invention first moves a fixing clamp 1 to the mounting structure using the handle 21. Then, the two clamp heads 11 of the fixing clamp 1 are brought closer together using the two handles 21, clamping the mounting structure. Simultaneously, before clamping, the limiting strip 31 is moved into the limiting sleeve 32. During continuous clamping, the limiting strip 31 moves further into the limiting sleeve 32. When fully clamped, the buffer spring 22 on the handle 21 is compressed, and the handle 21 is rotated away from the clamp heads 11 due to its elasticity. At this time, the limiting strip 31 is forced to move outward from the fixing sleeve. Meanwhile, the limiting block 35, under the action of the limiting spring 34, opens inside the limiting hole 33, restricting the reverse movement of the limiting strip 31. Therefore, the handle 21 is restricted by the limiting strip 31 and the limiting sleeve 32, keeping the ends of the two handles 21 close together, and then the mounting structure is clamped by the fixing clamp 1. At this point, the staff can release handle 21, and the fixing clamp 1 will be clamped and fixed on the installation structure under the action of the limiting strip 31 and the limiting sleeve 32.

[0025] Then, another clamping clamp 1 is used to clamp the nozzle head via handle 21, without being restricted by the limiting mechanism 3. After clamping the nozzle head, the operator can loosen the nozzle head from the mounting structure by rotating both clamping clamps 1 in the opposite direction. Since the clamping clamps 1 on the mounting structure remain clamped, only the clamping clamp 1 on the nozzle head changes angle. The operator then releases the clamping clamp 1 on the nozzle head and rotates it to its initial position, clamps it again, and then rotates the nozzle head again. After repeating this operation several times, the nozzle head can be removed from the threaded mounting structure.

[0026] Example 3 like Figures 1-2 As shown, based on Embodiment 1, the drive mechanism 4 is used to drive the clamping clamp 1 to rotate. The drive mechanism 4 can drive the handle 21 of the clamping clamp 1 to realize automatic clamping and automatic disassembly. At the same time, the closed drive mechanism 4 can replace the function of the limiting mechanism 3 to limit the handle 21.

[0027] In this embodiment, the driving mechanism 4 includes a connecting rod 41, which is detachably connected to the handle 21. The handle 21 has a connecting hole corresponding to the structure of the connecting rod 41. A piston cylinder 42 is disposed between the connecting rods 41. A piston rod 43 is slidably connected inside the piston cylinder 42, and the end of the piston rod 43 is rotatably connected to the connecting rod 41. The connecting rod 41 is used to install the piston rod 43 and the piston cylinder 42 onto different handles 21, facilitating the driving of the handles 21. The interaction between the piston cylinder 42 and the piston rod 43 utilizes the gas pressure inside the piston cylinder 42 to drive the two handles 21. Several sets of piston cylinders 42 and piston rods 43 are provided. The piston rod 43 can be installed onto two handles 21 of the same fixing clamp 1 via the connecting rod 41, thereby automatically clamping or releasing the fixing clamp 1. Alternatively, it can be installed onto two handles 21 of two different fixing clamps 1, thereby twisting the fixing clamp 1 to disassemble the nozzle head.

[0028] In addition, a pipe 44 is connected to the side of the piston cylinder 42, and an air pump is connected to the end of the pipe 44. A solenoid valve 45 is connected to the pipe 44. The air pump can pump air into the piston cylinder 42 through the pipe 44, and the solenoid valve 45 can control the opening or closing of the pipe 44.

[0029] In use, the injection molding machine nozzle assembly / disassembly device of the present invention first moves a fixing clamp 1 to the mounting structure via handle 21. Then, a set of piston rods 43 are installed onto the two handles 21 of the same fixing clamp 1 via connecting rod 41. Next, the piston cylinder 42 drives the two handles 21 to bring the ends of the two clamp heads 11 of the fixing clamp 1 closer together, thus clamping the mounting structure. When fully clamped, the fixing rod limits the handles 21, keeping the clamp heads 11 clamped. This keeps the ends of the two handles 21 close together, and the mounting structure is then clamped by the fixing clamp 1. At this point, the operator can release the handles 21, and the fixing clamp 1 is clamped and fixed to the mounting structure under the action of the limiting strip 31 and the limiting sleeve 32.

[0030] Then, another clamping clamp 1 is used to clamp the nozzle head with its handle 21 in the same way. Next, another set of piston rods 43 is installed onto the two handles 21 of the two clamping clamps 1 via the connecting rod 41. The piston cylinder 42 then drives the other clamping clamp 1 to rotate, using one clamping clamp 1 as a fulcrum, thereby driving the nozzle head. After a single rotation, the piston cylinder 42 on the clamping clamp 1 that clamps the nozzle head releases the clamp head 11. Simultaneously, the piston cylinder 42 between the two clamping clamps 1 drives the clamping clamp 1 on the nozzle head to rotate and reset. The other clamping clamp 1, after clamping the nozzle head with its handle 21 in the same way, can then drive the nozzle head to rotate to a set angle again in the same manner. After repeating this operation multiple times, the nozzle head can be removed from the threaded mounting structure.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nozzle assembly / disassembly device for an injection molding machine, characterized in that: Including fixing clamps (1); The gripping mechanism (2) is used to support the fixing clamp (1); Limiting mechanism (3) is used to limit the rotation of gripping mechanism (2); Drive mechanism (4) is used to drive the fixed clamp (1) to rotate; The gripping mechanism (2) is located at one end of the fixed clamp (1), and the limiting mechanism (3) and the driving mechanism (4) are located on the gripping mechanism (2).

2. The injection molding machine nozzle assembly / disassembly device according to claim 1, characterized in that: The gripping mechanism (2) includes a handle (21), which is detachably connected to the end of the clamp (1). A buffer spring (22) is fixedly connected to the handle (21), and a mounting hole (23) is provided on the handle (21). One end of the clamp (1) is set through the mounting hole (23).

3. The injection molding machine nozzle assembly / disassembly device according to claim 2, characterized in that: The handle (21) is fixedly connected to an installation rod (24), and the fixing clamp (1) is fixedly connected to a locking block (25) that corresponds to the structure of the installation rod (24).

4. The injection molding machine nozzle assembly / disassembly device according to claim 2, characterized in that: The fixing clamp (1), the gripping mechanism (2) and the limiting mechanism (3) are all provided in two sets. Each set of fixing clamp (1) includes two clamp heads (11) and the two clamp heads (11) are rotatably connected to each other. Each set of gripping mechanism (2) includes two handles (21) and the handles (21) are respectively connected to the ends of the clamp heads (11).

5. The injection molding machine nozzle assembly / disassembly device according to claim 1, characterized in that: The limiting mechanism (3) includes a limiting strip (31) and a limiting sleeve (32). The limiting strip (31) and the limiting sleeve (32) are rotatably connected to the ends of two handles (21), and the limiting sleeve (32) is fitted on the outside of the limiting strip (31).

6. The injection molding machine nozzle assembly / disassembly device according to claim 5, characterized in that: The limiting sleeve (32) has a limiting hole (33), and there are several limiting holes (33). The limiting holes (33) are equidistant from each other. A limiting block (35) is rotatably connected to the limiting strip (31), and a limiting spring (34) is fixedly connected to the inner side of the limiting block (35).

7. The injection molding machine nozzle assembly and disassembly device according to claim 1, characterized in that: The drive mechanism (4) includes a connecting rod (41), which is detachably connected to the handle (21). A piston cylinder (42) is provided between the connecting rods (41). A piston rod (43) is slidably connected inside the piston cylinder (42), and the end of the piston rod (43) is rotatably connected to the connecting rod (41).

8. The injection molding machine nozzle assembly / disassembly device according to claim 7, characterized in that: The piston cylinder (42) has a pipe (44) connected to its side, and an air pump is connected to the end of the pipe (44). A solenoid valve (45) is connected to the pipe (44).

Images