Novel injection integral moving structure
By designing a dual-stage displacement structure, the main and auxiliary displacement cylinders overlap their strokes, solving the problem of limited displacement stroke in large-tonnage injection molding machines. This achieves the large stroke requirement without occupying extra space, improving the operating efficiency and precision of the injection unit.
Patent Information
- Application Number
- CN202423273682.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In large-tonnage injection molding machines, the total travel of traditional injection units is limited by space constraints, which leads to installation difficulties and increased costs. In addition, traditional methods occupy a large space, affecting equipment layout and operating efficiency.
The system adopts a dual-stage displacement structure, including a main displacement cylinder and an auxiliary displacement cylinder. The large stroke requirement is achieved by superimposing the strokes of the main displacement cylinder and the auxiliary displacement cylinder. The transition plate and guide rod structure ensure that the cylinders are arranged in the same direction, avoiding additional space occupation.
This invention enables the injection unit of a large-tonnage injection molding machine to meet the requirements of a large stroke without increasing the overall length or area occupied, thereby improving the positioning accuracy and ease of operation of the injection unit.
Smart Images
Figure CN223589911U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of injection device, especially a novel injection whole displacement structure. BACKGROUND
[0002] With the rapid development of society and the growth of demand for plastic products, the injection molding machine industry has also evolved to meet the requirements of diversified and complex product manufacturing. In particular, the development of multi-component injection molding machines has brought more arrangement diversity and functional machine options. Under such circumstances, the design difficulty of injection combinations has gradually increased, especially in terms of large-tonnage high-difficulty injection combinations.
[0003] When the clamping tonnage is large, the thickness of the head plate will also increase accordingly. In this case, the injection design must meet the requirement that the injection stroke can be retracted to the bottom to ensure that the nozzle can smoothly exit the large plane of the head plate, which means that a larger whole displacement stroke is needed so that the nozzle can completely separate from the surface of the head plate after completing the injection, preparing for the next injection or maintenance operation.
[0004] However, the installation position of the conventional whole displacement cylinder has limited space from the head plate plane, which limits the installation possibility of larger whole displacement cylinder. Therefore, in the case of needing a larger whole displacement stroke while being space-limited, the traditional method is to install one whole displacement cylinder on each side of the injection device to achieve the required stroke, but this method not only increases the cost, but also occupies more space due to the additional cylinder, making the equipment layout more compact and causing inconvenience to actual operation. SUMMARY
[0005] The utility model considers the foregoing problem and is made, the utility model aims at providing a novel injection whole displacement structure, which utilizes double-stage displacement to greatly improve the stroke range of the injection device and meet the requirements of large-tonnage injection molding machines.
[0006] To achieve the above-mentioned purpose, the utility model provides a novel injection whole displacement structure for an injection molding machine, wherein the injection molding machine comprises a head plate and an injection device, the injection whole displacement structure comprises a main whole displacement cylinder, an auxiliary whole displacement cylinder, a guide rod and a connecting plate, the guide rod is arranged between the head plate and the injection device, the connecting plate is movably arranged on the guide rod, one end of the main whole displacement cylinder is connected to the injection device, the other end of the main whole displacement cylinder is connected to the connecting plate, the auxiliary whole displacement cylinder is connected to the connecting plate and can drive the connecting plate to move along the arrangement direction of the guide rod.
[0007] The arrangement direction of the main whole displacement cylinder is consistent with the arrangement direction of the guide rod.
[0008] The novel injection and transfer structure as claimed in the above further comprises a transition plate fixed on the head plate on the side close to the injection device, and the auxiliary transfer cylinder is fixed on the connecting plate and the piston rod of the auxiliary transfer cylinder is connected with the transition plate.
[0009] The novel injection and transfer structure as claimed in the above, the auxiliary transfer cylinder is arranged in the same direction as the main transfer cylinder and on one side of the main transfer cylinder.
[0010] The novel injection and transfer structure as claimed in the above, the auxiliary transfer cylinder is arranged in the same direction as the main transfer cylinder and on one side of the main transfer cylinder.
[0011] The novel injection and transfer structure as claimed in the above further comprises a support frame, the top of the support frame is provided with a positioning plate, one end of the guide rod is detachably connected with the positioning plate through a second screw, the other end of the guide rod is connected with the transition plate through the connecting plate, the connecting plate is provided with a copper sleeve, the guide rod is arranged in the copper sleeve and is in clearance fit with the copper sleeve.
[0012] The novel injection and transfer structure as claimed in the above, the guide rod is provided with four, the other end of the four guide rods is respectively connected with the four corners of the positioning plate and the transition plate, and the connecting plate is connected with the four guide rods.
[0013] The novel injection and transfer structure as claimed in the above further comprises a first connecting piece, the piston rod of the main transfer cylinder is hingedly connected with the middle part of the connecting plate through the first connecting piece and can rotate in the up-down direction.
[0014] The novel injection and transfer structure as claimed in the above, the first connecting piece comprises a piston joint, a first hinge seat and a first seat pin, the piston rod of the main transfer cylinder can be inserted into the piston joint, the first hinge seat is detachably fixed on the middle part of the connecting plate through a third screw, one end of the piston joint can be inserted into the first hinge seat and can be rotatably connected with the first hinge seat through the first seat pin.
[0015] The novel injection and transfer structure as claimed in the above further comprises a second connecting piece, the end of the main transfer cylinder away from the connecting plate is hingedly connected with the injection device through the second connecting piece and can rotate in the left-right direction.
[0016] The second connecting piece comprises a second hinge base and a second seat pin, the second hinge base is detachably fixed at the middle part of the injection device through a fourth screw, and the main integral movement oil cylinder is inserted into the second hinge base at the end away from the connecting plate and is rotatably connected with the second hinge base through the second seat pin.
[0017] The utility model has the advantages that: under normal conditions, if the stroke of the main integral movement oil cylinder can meet the stroke requirement of the injection device, the movement of the main integral movement oil cylinder can drive the injection device to move integrally; when the stroke of the main integral movement oil cylinder cannot meet the stroke requirement of the injection device, such as when the injection device is retracted, the main integral movement oil cylinder drives the injection device to move integrally first, and after the stroke of the main integral movement oil cylinder is used up, the auxiliary integral movement oil cylinder drives the connecting plate to move integrally, the connecting plate drives the injection device to continue moving integrally through the main integral movement oil cylinder, the integral movement distance of the injection device can reach the sum of the strokes of the main integral movement oil cylinder and the auxiliary integral movement oil cylinder, the utility model can be applied to a large-tonnage injection molding machine, and the arrangement of the auxiliary integral movement oil cylinder does not increase the length or the occupied area of the integral movement structure, so that the space can be effectively saved and the utility model can be used in various complex injection combination scenes. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is an integral movement structure assembly schematic view of the embodiment;
[0019] Figure 2 is a main integral movement oil cylinder assembly schematic view of the embodiment;
[0020] Figure 3 is an integral movement structure sectional view of the embodiment;
[0021] Figure 4 is another perspective view of the integral movement structure sectional view of the embodiment.
[0022] In the drawings:
[0023] 1, head plate; 2, injection device; 3, main integral movement oil cylinder; 4, auxiliary integral movement oil cylinder; 5, guide rod; 6, connecting plate; 7, transition plate; 8, first screw; 9, adjusting nut; 10, support frame; 11, positioning plate; 12, copper sleeve; 13, piston joint; 14, first hinge base; 15, first seat pin; 16, second screw; 17, second hinge base; 18, second seat pin; 19, third screw. DETAILED DESCRIPTION
[0024] The following is a specific embodiment of the utility model and further describes the technical scheme of the utility model in combination with the drawings, but the utility model is not limited to these embodiments.
[0025] For example, Figures 1-4As shown, a new injection whole moving structure includes a main whole moving cylinder 3, a secondary whole moving cylinder 4, a guide rod 5 and a connecting plate 6.
[0026] Specifically, the whole moving structure is applied to an injection molding machine, which includes a head plate 1 and an injection device 2, the whole moving structure is fixed on the head plate 1 and used to drive the injection device 2 to move towards or away from the head plate 1, so that the nozzle on the injection device 2 can be inserted into or separated from the injection port of the head plate 1, and when it is separated from the head plate 1, the screw and barrel of the injection device 2 can be replaced.
[0027] For the head plate 1 with large thickness, the stroke of the nozzle of the injection device 2 in the head plate 1 is also large, in order to meet the large stroke requirement of the injection device 2, the guide rod 5 is arranged between the head plate 1 and the injection device 2, the connecting plate 6 is movably arranged on the guide rod 5 and can be displaced along the arrangement direction of the guide rod 5, one end of the main whole moving cylinder 3 is connected with the injection device 2, the other end is connected with the connecting plate 6, the secondary whole moving cylinder 4 is connected with the connecting plate 6 and can drive the connecting plate 6 to move along the arrangement direction of the guide rod 5, and the arrangement direction of the main whole moving cylinder 3 is consistent with the arrangement direction of the guide rod 5, during the movement of the connecting plate 6, the movement direction is consistent with the extension direction of the piston rod of the main whole moving cylinder 3, which is convenient for stacking effect, in this embodiment, if the nozzle of the injection device 2 needs to be withdrawn from the head plate 1, it can be first driven to retract by the main whole moving cylinder 3, if the stroke of the main whole moving cylinder 3 is used up and the nozzle of the injection device 2 is still in the head plate 1, the secondary whole moving cylinder 4 can be used to drive the main whole moving cylinder 3 to continue to displace, and the nozzle can also continue to displace, so that it can be smoothly separated from the head plate 1, that is, the double displacement can increase the stroke of the whole moving structure, which is suitable for large tonnage injection molding machines.
[0028] Specifically, it also includes a transition plate 7, which is fixed on the side of the head plate 1 close to the injection device 2, the secondary whole moving cylinder 4 is fixed on the connecting plate 6, and the piston rod of the secondary whole moving cylinder 4 is connected with the transition plate 7, which is used to connect the whole moving structure to the head plate 1, and when the piston rod of the secondary whole moving cylinder 4 extends, since the transition plate 7 remains stationary, it can drive the secondary whole moving cylinder 4 to move away from the head plate 1, which drives the main whole moving cylinder 3 to move through the connecting plate 6.
[0029] In order to ensure that the two displacements can be stacked, the arrangement direction of the secondary whole moving cylinder 4 is consistent with that of the main whole moving cylinder 3 and is located on one side of the main whole moving cylinder 3, the arrangement directions are consistent, which can ensure that the extension direction of the piston rod is also consistent, so that the movement distance can be stacked, and the length of the secondary whole moving cylinder 4 should be less than that of the main whole moving cylinder 3, so as to avoid occupying space by additional length.
[0030] Specifically, the auxiliary whole-moving oil cylinder 4 is arranged on the connecting plate 6, and the auxiliary whole-moving oil cylinder 4 is detachably connected to the connecting plate 6 through the first screw 8. After detachable connection through the first screw 8, the auxiliary whole-moving oil cylinder 4 is fixedly connected to the connecting plate 6. When the auxiliary whole-moving oil cylinder 4 moves, the connecting plate 6 can be driven to move together. The piston rod of the auxiliary whole-moving oil cylinder 4 is threadedly connected to the transition plate 7, and the piston rod is provided with an adjusting nut 9. The inner end surface of the adjusting nut 9 can be attached to the outer side surface of the transition plate 7. By rotating the adjusting nut 9, the position of the adjusting nut 9 on the piston rod can be adjusted, so that the fine adjustment of the auxiliary whole-moving oil cylinder 4 in the front-rear direction can be realized. Since the auxiliary whole-moving oil cylinder 4, the connecting plate 6 and the transition plate 7 are detachably connected, the auxiliary whole-moving oil cylinder 4 can be easily taken down for maintenance and replacement.
[0031] In order to provide support for the guide rod 5, a support frame 10 is further provided. The top of the support frame 10 is provided with a positioning plate 11. One end of the guide rod 5 is detachably connected to the positioning plate 11 through the second screw 16. The other end of the guide rod 5 can pass through the connecting plate 6 and be connected to the transition plate 7. The connecting plate 6 is provided with a copper sleeve 12. The guide rod 5 can pass through the copper sleeve 12 and be in clearance fit with the copper sleeve 12. That is, the support frame 10 and the transition plate 7 provide support for the two ends of the guide rod 5, and the connecting plate 6 is in clearance fit with the guide rod 5, so that the connecting plate 6 can smoothly move on the guide rod 5.
[0032] In order to ensure the stability of the movement of the connecting plate 6, the guide rod 5 is provided with four guide rods. The other ends of the four guide rods 5 are respectively connected to the four corners of the positioning plate 11 and the transition plate 7. The connecting plate 6 is connected to the four guide rods 5 at the same time, which is equivalent to four-point positioning of the connecting plate 6, preventing it from shaking and improving the whole-moving precision of the injection device 2.
[0033] Specifically, the first connecting member and the second connecting member are further provided for fixing the two ends of the main whole-moving oil cylinder 3 to the connecting plate 6 and the injection device 2 respectively. The piston rod of the main whole-moving oil cylinder 3 is hingedly connected to the middle part of the connecting plate 6 through the first connecting member and can rotate in the up-down direction. The end of the main whole-moving oil cylinder 3 away from the connecting plate 6 is hingedly connected to the middle part of the injection device 2 through the second connecting member and can rotate in the left-right direction. The rotation in the up-down direction can ensure that the main whole-moving oil cylinder 3 is horizontal, and the rotation in the left-right direction can ensure that the main whole-moving oil cylinder 3 can accurately apply driving force to the injection device 2, avoiding force deviation.
[0034] Specifically, the first connecting member comprises a piston joint 13, a first hinge base 14 and a first hinge pin 15, the piston rod of the main adjusting and moving cylinder 3 can be inserted into the piston joint 13, the position of the piston rod in the piston joint 13 can be adjusted, thereby fine-tuning the front and back positions of the main adjusting and moving cylinder 3, the first hinge base 14 is detachably fixed on the middle part of the connecting plate 6 through the third screw 19, one end of the piston joint 13 can be inserted into the first hinge base 14 and can be rotatably connected with the first hinge base 14 through the first hinge pin 15, that is, the first connecting member is detachable as a whole, which is convenient for disassembly and maintenance.
[0035] Specifically, the second connecting member comprises a second hinge base 17 and a second hinge pin 18, the second hinge base 17 is detachably fixed on the middle part of the injection device 2 through the third screw 19, the end of the main adjusting and moving cylinder 3 away from the connecting plate 6 can be inserted into the second hinge base 17 and can be rotatably connected with the second hinge base 17 through the second hinge pin 18, the second connecting member is also detachable as a whole, which is convenient for disassembly and maintenance.
[0036] The technical scheme of the utility model is described in detail above in combination with the drawings, and the described embodiments are used to help understand the idea of the utility model. The specific embodiments described in this paper are only examples of the spirit of the utility model. Those skilled in the art to which the utility model belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.
[0037] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indications will also change accordingly.
[0038] In addition, the descriptions such as "first", "second", "one" and the like in the utility model are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0039] In the utility model, unless another definite provision and limitation, the term "connect", "fix" and so on should do the broad sense understanding, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electric connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two element inside's intercommunication or two element's mutual action relation, unless another definite limitation.For the ordinary skill in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to the specific circumstances.
[0040] In addition, the technical solutions of various embodiments of the present application can be combined with each other, but must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.
Claims
1. A novel injection transfer structure for use in an injection molding machine, the injection molding machine comprising a head plate and an injection unit, characterized in that, The injection adjustment structure includes a main adjustment cylinder, a secondary adjustment cylinder, a guide rod, and a connecting plate. The guide rod is arranged between the head plate and the injection device. The connecting plate is movably mounted on the guide rod. One end of the main adjustment cylinder is connected to the injection device, and the other end of the main adjustment cylinder is connected to the connecting plate. The secondary adjustment cylinder is connected to the connecting plate and can drive the connecting plate to move along the arrangement direction of the guide rod. The main translating cylinder is arranged in the same direction as the guide rod.
2. The novel injection-transfer structure according to claim 1, characterized in that, It also includes a transition plate, which is fixed on the side of the head plate near the injection device, and the auxiliary aligning cylinder is fixed on the connecting plate, with the piston rod of the auxiliary aligning cylinder connected to the transition plate.
3. The novel injection-transfer structure according to claim 2, characterized in that, The auxiliary aligning cylinder is arranged in the same direction as the main aligning cylinder and is located on one side of the main aligning cylinder.
4. A novel injection-transfer structure according to claim 2 or 3, characterized in that, The auxiliary aligning cylinder is mounted on the connecting plate and is detachably connected to the connecting plate via a first screw. The piston rod of the auxiliary aligning cylinder is threadedly engaged with the transition plate, and an adjusting nut is provided on the piston rod. The inner end face of the adjusting nut can fit against the outer side of the transition plate.
5. A novel injection-transfer structure according to claim 2, characterized in that, It also includes a support frame, the top of which is provided with a positioning plate. One end of the guide rod is detachably connected to the positioning plate by a second screw, and the other end of the guide rod can pass through the connecting plate and connect to the transition plate. The connecting plate is provided with a copper sleeve, and the guide rod can pass through the copper sleeve and form a clearance fit with the copper sleeve.
6. The novel injection-transfer structure according to claim 5, characterized in that, The guide rods are provided in four parts. The other end of the four guide rods is connected to the four corners of the positioning plate, and the other end is connected to the four corners of the transition plate. The connecting plate is connected to the four guide rods at the same time.
7. The novel injection-transfer structure according to claim 1, characterized in that, It also includes a first connecting member, through which the piston rod of the main adjusting cylinder is hinged to the middle of the connecting plate and can rotate in the up and down direction.
8. The novel injection-transfer structure according to claim 7, characterized in that, The first connecting member includes a piston joint, a first hinge seat, and a first seat pin. The piston rod of the main adjusting cylinder can be inserted into the piston joint. The first hinge seat is detachably fixed to the middle of the connecting plate by a third screw. One end of the piston joint can be inserted into the first hinge seat and can be rotatably connected to the first hinge seat by the first seat pin.
9. The novel injection-transfer structure according to claim 1, characterized in that, It also includes a second connector, wherein the end of the main adjusting cylinder away from the connecting plate is hinged to the injection device through the second connector and can rotate in the left and right direction.
10. A novel injection-transfer structure according to claim 9, characterized in that, The second connector includes a second hinge seat and a second seat pin. The second hinge seat is detachably fixed to the middle of the injection device by a fourth screw. The end of the main adjustment cylinder away from the connecting plate can be inserted into the second hinge seat and can be rotatably connected to the second hinge seat by the second seat pin.