A neutron valve control method and system for an injection molding machine

Abstract

The present invention discloses a control method and system for a neutron valve of an injection molding machine, relating to the field of injection molding machines. By setting the neutron valves for synchronous advancement, setting the execution bit segments of the advancement actions of the neutron valves for synchronous advancement in the action process, setting the neutron valves for synchronous retraction, and setting the execution bit segments of the retraction actions of the neutron valves for synchronous retraction in the action process, the action priorities of each synchronous advancement neutron valve or each synchronous retraction neutron valve are made consistent, so as to enable each synchronous advancement neutron valve or each synchronous retraction neutron valve to act at the same time and position. Furthermore, it realizes that multiple synchronous advancement neutron valves output simultaneously to supply oil to the corresponding same neutron at the same time, thereby increasing the hydraulic oil volume passing through in the same time and increasing the bearing capacity of the corresponding neutron, solving the problem that when the diameter of the neutron valve cannot meet the current production process requirements, customers often can only solve related problems by increasing the diameter of the neutron valve in terms of hardware.

Description

Technical Field

[0001] The present invention relates to the field of injection molding machines, and particularly to a method and system for controlling a neutron valve for an injection molding machine. Background Art

[0002] Currently in the injection molding industry, more and more processes require the cooperation of neutrons. When some special processes require the cooperation of neutrons, the pressure in the mold cavity is too high. The neutrons in the final state (the state when the neutrons stop after being pushed in) cannot withstand this strong pressure, resulting in being pushed back under the action of external forces during the injection molding process, and ultimately causing the expected product to not be successfully molded. When encountering such problems, generally, the problem is solved by increasing the diameter of the neutron valve corresponding to the neutron. After the diameter of the neutron valve is increased, the amount of hydraulic oil passing through in the same time will increase. At the same time, the ability of the neutron to withstand external forces will become stronger, so that it will not be pushed out due to excessive pressure in the mold cavity during the injection molding process.

[0003] In addition, when the process flow requires the cooperation of multiple groups of neutron valves, the neutron valves will act one by one according to the set priority to complete the process flow, that is, after the action of the neutron valve of the previous priority is completed, the neutron valve of the next priority will start to act. However, for some processes, there are no requirements for the action sequence of the neutron valves, or it is required that multiple groups of neutron valves move in and out simultaneously. The current neutron action logic cannot be applied to such processes. Therefore, the problems in the prior art include:

[0004] 1. When the diameter of the neutron valve cannot meet the current production process requirements, customers often can only solve the related problems by increasing the diameter of the neutron valve in hardware. Although this can solve the problem, it will also increase the related hardware costs.

[0005] 2. The current neutron valve actions can only act one by one rigidly according to the set priority. Only after the neutron valve of the high priority has completed its action can the neutron valve of the next priority start to act. When the process flow has no requirements for the action sequence of the neutron valves, the sequential actions of the neutron valves will waste a lot of time and increase costs in vain;

[0006] 3. The mold cavity is already filled with material, and neutrons are required to enter the final state and push, but the force is not enough, resulting in possible failure to push in. Summary of the Invention

[0007] In order to solve the problems that when the diameter of the neutron valve cannot meet the current production process requirements, customers often can only solve the related problems by increasing the diameter of the neutron valve in hardware, and the current neutron valve actions can only act one by one rigidly according to the set priority, the present invention proposes a method for controlling a neutron valve for an injection molding machine, including the steps of:

[0008] S1: Obtain the group of neutron valves to be used, and set the neutron valves that enter synchronously in the group of neutron valves to be used;

[0009] S2: Set the execution bit segment of the forward movement of the synchronous forward neutron valve in the action process;

[0010] S3: Set the execution delay time of the forward movement of the synchronous forward neutron valve. The execution delay time includes the pre-execution delay time and the post-execution delay time of the forward movement. The pre-execution delay time is the interval time when, when the action in the action process reaches the execution bit segment, after a preset time delay, the forward movement is executed. The post-execution delay time is the interval time when, after the forward movement of the synchronous forward neutron valve is completed, after a preset time delay, it enters the next action in the action process or continues the previous action.

[0011] S4: Set the neutron valve for synchronous retraction in the neutron valve group to be used.

[0012] S5: Set the execution bit segment of the retraction action of the synchronous retraction neutron valve in the action process;

[0013] S6: Set the execution delay time of the retraction action of the synchronous retraction neutron valve. The execution delay time includes the pre-execution delay time and the post-execution delay time of the retraction action. The pre-execution delay time is the interval time when, when the action in the action process reaches the execution bit segment, after a preset time delay, the retraction action is executed. The post-execution delay time is the interval time when, after the retraction action of the synchronous retraction neutron valve is completed, after a preset time delay, it enters the next action in the action process or continues the previous action.

[0014] Further, the execution bit segment includes: before injection, after mold closing, after ejection, and in the middle of the action; the middle of the action includes in the middle of ejector retraction and in the middle of mold opening.

[0015] Further, when the execution bit segment is in the middle of the action, step S3 further includes: setting the execution position of the forward movement of the synchronous forward neutron valve in the middle of the action;

[0016] Step S6 further includes: setting the execution position of the retraction action of the synchronous retraction neutron valve in the middle of the action.

[0017] Further, the neutron valve control method further includes:

[0018] Setting the action execution priorities of each asynchronous neutron valve in the action process, and the action execution priorities of the asynchronous neutron valve and the synchronous neutron valve in the action process. The asynchronous neutron valves include the neutron valve for asynchronous forward movement and the neutron valve for asynchronous retraction; the synchronous neutron valves include the neutron valve for synchronous forward movement and the neutron valve for synchronous retraction.

[0019] Further, the process actions in the action process are in sequence:

[0020] Circular start, mold clamping, injection holding pressure, material storage, mold opening, ejector forward, ejector retraction, circular end.

[0021] The present invention also proposes a neutron valve control system for an injection molding machine, including:

[0022] A synchronous forward neutron valve setting module, configured to obtain the neutron valve group to be used and set the neutron valves for synchronous forward in the neutron valve group to be used;

[0023] An advancing action execution bit segment setting module, configured to set the execution bit segment of the advancing action of the synchronous forward neutron valve in the action process;

[0024] A synchronous backward neutron valve setting module, configured to set the neutron valves for synchronous backward in the neutron valve group to be used;

[0025] A retracting action execution bit segment setting module, configured to set the execution bit segment of the retracting action of the synchronous backward neutron valve in the action process.

[0026] Further, the neutron valve control system further includes:

[0027] An advancing action execution delay time setting module, configured to set the execution delay time of the advancing action of the synchronous forward neutron valve, where the execution delay time includes the pre-execution delay time and the post-execution delay time of the advancing action; the pre-execution delay time is the interval time when, when the action in the action process executes to the execution bit segment, after a preset time delay, the advancing action is executed; the post-execution delay time is the interval time when, after the advancing action of the synchronous forward neutron valve is executed, after a preset time delay, it enters the next action in the action process or continues the previous action;

[0028] A retracting action execution delay time setting module, configured to set the execution delay time of the retracting action of the synchronous backward neutron valve, where the execution delay time includes the pre-execution delay time and the post-execution delay time of the retracting action; the pre-execution delay time is the interval time when, when the action in the action process executes to the execution bit segment, after a preset time delay, the retracting action is executed; the post-execution delay time is the interval time when, after the retracting action of the synchronous backward neutron valve is executed, after a preset time delay, it enters the next action in the action process or continues the previous action.

[0029] Further, the execution bit segment includes: before injection, after mold clamping, after ejector forward, and midway through the action; the midway through the action includes midway through ejector retraction and midway through mold opening.

[0030] Further, the advancing action execution delay time setting module is further configured to: set the execution position of the advancing action of the synchronous forward neutron valve during the action midway;

[0031] The retracting action execution delay time setting module is further configured to set the execution position of the retracting action of the synchronous backward neutron valve during the action midway.

[0032] Further, the neutron valve control system further includes:

[0033] A priority setting module, configured to set the action execution priorities of each asynchronous neutron valve in the action process, and the action execution priorities of the asynchronous neutron valve and the synchronous neutron valve in the action process. The asynchronous neutron valve includes a neutron valve for asynchronous advancement and a neutron valve for asynchronous retraction; the synchronous neutron valve includes a neutron valve for synchronous advancement and a neutron valve for synchronous retraction.

[0034] Compared with the prior art, the present invention has at least the following beneficial effects:

[0035] (1) By setting the neutron valve for synchronous advancement, setting the execution segment of the advancement action of the synchronous advancement neutron valve in the action process, setting the neutron valve for synchronous retraction, and setting the execution segment of the retraction action of the synchronous retraction neutron valve in the action process, the present invention makes the action priorities of each synchronous advancement neutron valve or each synchronous retraction neutron valve consistent, so as to enable each synchronous advancement neutron valve or each synchronous retraction neutron valve to act at the same time and position, and further realizes that multiple synchronous advancement neutron valves output simultaneously to supply oil to the corresponding same neutron at the same time. As a result, the hydraulic oil volume passing through in the same time increases, and the bearing capacity of the corresponding neutron increases, solving the problems that when the diameter of the neutron valve cannot meet the current production process requirements, customers often can only solve related problems by increasing the diameter of the neutron valve in hardware, and the current neutron valve actions can only act one by one rigidly according to the set priorities;

[0036] (2) The present invention also includes setting the execution delay time of the advancement action of the synchronous advancement neutron valve and the execution delay time of the retraction action of the synchronous retraction neutron valve, realizing flexible control of the corresponding execution time of the neutron valve actions;

[0037] (3) When the execution segment is in the middle of the action, the present invention sets the execution position of the advancement action of the synchronous advancement neutron valve in the middle of the action, and sets the execution position of the retraction action of the synchronous retraction neutron valve in the middle of the action, which further improves the accuracy of the action execution of the synchronous advancement neutron valve and the synchronous retraction neutron valve;

[0038] (4) By setting the action execution priorities of each asynchronous neutron valve in the action process, and the action execution priorities of the asynchronous neutron valve and the synchronous neutron valve in the action process, the present invention realizes the asynchronous operation of the synchronous neutron valve and the asynchronous neutron valve. The actions of the synchronous neutron valve and the ordinary asynchronous neutron valve are independent of each other and do not interfere with each other; and the logics of the synchronous advancement neutron valve and the synchronous retraction neutron valve are independent of each other, and the settings do not need to be consistent; greatly improving the universality of the system;

[0039] (5) By setting the execution bit segment, execution delay time, and execution position during the movement process of the synchronous neutron valve in the present invention, the movement of the neutron valve is no longer limited to the traditional on-off mode. The forward and backward movement of the synchronous neutron valve can be performed at any action node of the injection molding machine. At the same time, the execution delay time and execution position of the movement can be set, that is, it is compatible with all special neutron requirements and meets the production of different processes;

[0040] (6) When the diameter of the neutron valve in the present invention does not meet the process requirements, the present invention controls multiple synchronous neutron valves to act simultaneously to make up for it, thereby avoiding the change of the diameter of the neutron valve in terms of hardware and saving the hardware cost;

[0041] (7) The neutron valve control method of the present invention can control multiple synchronous neutron valves to act simultaneously, greatly shortening the production cycle of some processes that have no requirements for the action sequence of the neutron valve, alleviating the production pressure of customers, and greatly reducing the production cycle;

[0042] (8) The present invention can flexibly set the synchronous forward neutron valve and the synchronous backward neutron valve according to preset requirements, as well as the execution bit segment and execution delay time corresponding to the action. It has a wide range of application scenarios, high flexibility in system control, and strong editability, and is suitable for different process requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a flow chart of a neutron valve control method for an injection molding machine;

[0044] Figure 2 It is a module diagram of a neutron valve control system for an injection molding machine. DETAILED DESCRIPTION OF THE INVENTION

[0045] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0046] Embodiment 1

[0047] During the injection molding process, neutrons are used for some special molding processes. For example, to make a plastic valve plate with a relatively deep hole in the middle of the plastic plate, at this time, the neutron needs to be pushed in, and then after injecting the plastic and waiting for it to form, the neutron retreats to form the hole. During this process, due to the too large injection force, the neutron may not be able to withstand the force because its bearing capacity is too small. Therefore, it is necessary to increase the diameter of the corresponding neutron valve of the neutron to increase the bearing capacity of the neutron. However, solving the problem of insufficient bearing capacity by increasing the diameter of the neutron valve in terms of hardware will increase the cost of related hardware.

[0048] In order to achieve synchronous control of the neutron valve and solve the problems that when the diameter of the neutron valve cannot meet the current production process requirements, customers often can only solve related problems by increasing the diameter of the neutron valve in hardware, the current actions of the neutron valve can only be carried out one by one rigidly according to the set priority, and since the mold cavity is already filled with material and the neutron needs to enter the end to push, but the force is not enough, resulting in the problem that it may not be pushed in, as Figure 1 shown, the present invention proposes a control method for a neutron valve of an injection molding machine, including the steps of:

[0049] S1: Obtain the neutron valve group to be used, and set the neutron valves for synchronous advancement in the neutron valve group to be used, so as to enable each synchronous advancement neutron valve to simultaneously perform an advancement action on a preset neutron;

[0050] S2: Set the execution bit segment of the advancement action of the synchronous advancement neutron valve in the action process;

[0051] S3: Set the execution delay time of the advancement action of the synchronous advancement neutron valve, where the execution delay time includes the pre-execution delay time and the post-execution delay time of the advancement action; the pre-execution delay time is the interval time when, when the action in the action process executes to the execution bit segment, after delaying a preset duration, the advancement action is executed again; the post-execution delay time is the interval time when, after the advancement action of the synchronous advancement neutron valve is executed, after delaying a preset duration, it enters the next action in the action process or continues the previous action;

[0052] S4: Set the neutron valves for synchronous retraction in the neutron valve group to be used, so as to enable each synchronous retraction neutron valve to simultaneously perform a retraction action on a preset neutron;

[0053] S5: Set the execution bit segment of the retraction action of the synchronous retraction neutron valve in the action process;

[0054] S6: Set the execution delay time of the retraction action of the synchronous retraction neutron valve, where the execution delay time includes the pre-execution delay time and the post-execution delay time of the retraction action; the pre-execution delay time is the interval time when, when the action in the action process executes to the execution bit segment, after delaying a preset duration, the retraction action is executed again; the post-execution delay time is the interval time when, after the retraction action of the synchronous retraction neutron valve is executed, after delaying a preset duration, it enters the next action in the action process or continues the previous action.

[0055] By setting the execution bit segment, execution delay time, and execution position during the action of the synchronous advancement and retraction of the neutron valve, the present invention makes the action of the neutron valve no longer limited to the traditional mold opening and closing actions, and the advancement and retraction actions of the synchronous neutron valve can be carried out at any action node of the injection molding machine. At the same time, the execution delay time and execution position of the action can be set, that is, it is compatible with all special neutron requirements and meets the production of different processes.

[0056] The execution bit segment includes: before injection, after mold clamping, after ejection, and in the middle of an action; the middle of the action includes in the middle of the forward movement and in the middle of the mold opening.

[0057] When the execution bit segment is in the middle of an action, the execution post-delay time corresponding to the synchronous forward movement neutron valve is specifically the interval time when, when the action in the action process is executed to the execution position, the synchronous forward movement neutron valve is controlled to perform a forward movement, and after the execution is completed, after a preset time delay, the previous action is continued; the execution pre-delay time is specifically the interval (delay) time when, when the action in the action process is executed to the execution position, the action corresponding to the middle of the action is controlled to stop, and after a preset time delay, the forward movement is executed (and then the previous action is continued after the forward movement is executed);

[0058] Step S3 further includes: setting the execution position of the forward movement of the synchronous forward movement neutron valve in the middle of the action;

[0059] When the execution bit segment is in the middle of an action, the execution post-delay time corresponding to the synchronous backward movement neutron valve is specifically the interval time when, when the action in the action process is executed to the execution position, the synchronous backward movement neutron valve is controlled to perform a backward movement, and after the execution is completed, after a preset time delay, the previous action is continued; the execution pre-delay time is specifically the interval (delay) time when, when the action in the action process is executed to the execution position, the action corresponding to the middle of the action is controlled to stop, and after a preset time delay, the backward movement is executed (and then the previous action is continued after the backward movement is executed);

[0060] It should be noted that when the execution bit segment is in the middle of an action, and when the action in the action process is executed to the execution position in the middle of the action, the action corresponding to the middle of the action is controlled to pause (for example, in the middle of the mold opening, when reaching the execution position in the middle of the mold opening, the mold opening is controlled to pause).

[0061] Step S6 further includes: setting the execution position of the backward movement of the synchronous backward movement neutron valve in the middle of the action. After the setting is completed, automatic production is entered.

[0062] It should be noted that taking the middle of the mold opening and the execution position being equal to 20 as an example, the execution position is the position point corresponding to the straight-line distance of 20 mm in the mold opening direction from the position corresponding to the start moment of the mold opening.

[0063] In addition, in the present invention, steps S3 and S6 can be set according to requirements. When there is no need to set the execution delay time, the corresponding S3 or S6 steps can be skipped.

[0064] The neutron valve control method further includes:

[0065] Set the action execution priorities of each asynchronous neutron valve in the action process, as well as the action execution priorities of the asynchronous neutron valve and the synchronous neutron valve in the action process. The asynchronous neutron valve includes a neutron valve for asynchronous forward movement and a neutron valve for asynchronous backward movement; the synchronous neutron valve includes a neutron valve for synchronous forward movement and a neutron valve for synchronous backward movement. After the setting is completed, enter automatic production.

[0066] By setting the action execution priorities of each asynchronous neutron valve in the action process, as well as the action execution priorities of the asynchronous neutron valve and the synchronous neutron valve in the action process, the present invention realizes the asynchronous operation of the synchronous neutron valve and the asynchronous neutron valve. The actions of the synchronous neutron valve and the ordinary asynchronous neutron valve are independent of each other and do not interfere with each other; moreover, the logics of the synchronous forward neutron valve and the synchronous backward neutron valve are independent of each other, and the settings do not need to be consistent; greatly improving the universality of the system.

[0067] The process actions in the action process are in sequence as follows:

[0068] Cycle start, mold closing, injection and holding pressure, material storage, mold opening, ejector forward movement, ejector backward movement, cycle end.

[0069] The present invention takes 4 groups of neutron valves A, B, C, and D as an example for illustration:

[0070] 1. Turn on the neutron synchronization function;

[0071] 2. Set A, B, and C as the synchronous forward neutron valves; set the execution segment of the forward movement of the synchronous forward neutron valve in the action process to be after injection, and set the pre-execution delay time to 1 s;

[0072] 3. Set B, C, and D as the synchronous backward neutron valves; set the execution segment of the backward movement of the synchronous backward neutron valve in the action process to be midway through the ejector backward movement, the execution position to be 20, and the post-execution delay time to 2 s;

[0073] 4. Individually set the execution segment of the forward movement of the asynchronous forward neutron valve D in the action process to be before mold closing; set the execution segment of the backward movement of the asynchronous backward neutron valve A in the action process to be after mold opening; that is, the priority of the asynchronous forward neutron valve D is the highest, followed by the synchronous forward neutron valves (A, B, C), then the asynchronous backward neutron valve A, and finally the synchronous backward neutron valves (B, C, D);

[0074] Therefore, after entering automatic production, the action process running with the above set priorities is as follows:

[0075] Forward movement of the asynchronous forward neutron valve D → Mold closing → Injection → Delay for 1 s → Simultaneous forward movement of neutron valves ABC → Material storage → Mold opening → Backward movement of the asynchronous backward neutron valve A → Ejector forward movement → Ejector backward movement → Ejector backward position (execution position) to 20 → Simultaneous backward movement of neutron valves BCD → Delay for 2 s → Ejector backward (ejector forward) → Recycle.

[0076] It should be noted that the execution delay time is timed by a timer to obtain the real-time time of the timer. When the real-time time meets the execution delay time, the action continues.

[0077] In the present invention, by setting the neutron valves for synchronous advancement, setting the execution bit segment of the advancement action of the synchronous advancement neutron valves in the action process, setting the neutron valves for synchronous retraction, and setting the execution bit segment of the retraction action of the synchronous retraction neutron valves in the action process, the action priorities of the synchronous advancement neutron valves or the synchronous retraction neutron valves are made consistent, so as to enable the synchronous advancement neutron valves or the synchronous retraction neutron valves to act at the same time and position. Furthermore, it realizes that multiple synchronous advancement neutron valves output simultaneously to supply oil to the corresponding same neutron at the same time, thereby increasing the hydraulic oil volume passing through in the same time and increasing the bearing capacity of the corresponding neutron, solving the problems that when the diameter of the neutron valve cannot meet the current production process requirements, customers often can only solve related problems by increasing the diameter of the neutron valve in hardware, and that the current actions of the neutron valves can only act one by one rigidly according to the set priorities.

[0078] Embodiment 2

[0079] As Figure 2 shown, the present invention also proposes a neutron valve control system for an injection molding machine, including:

[0080] A synchronous advancement neutron valve setting module, configured to obtain the neutron valve group to be used and set the neutron valves for synchronous advancement in the neutron valve group to be used;

[0081] An advancement action execution bit segment setting module, configured to set the execution bit segment of the advancement action of the synchronous advancement neutron valves in the action process;

[0082] A synchronous retraction neutron valve setting module, configured to set the neutron valves for synchronous retraction in the neutron valve group to be used;

[0083] A retraction action execution bit segment setting module, configured to set the execution bit segment of the retraction action of the synchronous retraction neutron valves in the action process.

[0084] The present invention realizes that when the diameter of the neutron valve does not meet the process requirements, it controls multiple synchronous neutron valves to act simultaneously to make up for it, thereby avoiding changing the diameter of the neutron valve in hardware and saving the hardware cost.

[0085] The neutron valve control system further includes:

[0086] The forward motion execution delay time setting module is used to set the execution delay time of the forward motion of the synchronous forward neutron valve. The execution delay time includes the pre-execution delay time and the post-execution delay time of the forward motion. The pre-execution delay time is the interval time when, when the action in the action process reaches the execution segment, after delaying a preset duration, the forward motion is executed again. The post-execution delay time is the interval time when, after the forward motion of the synchronous forward neutron valve is executed, after delaying a preset duration, it enters the next action in the action process or continues the previous action.

[0087] The reverse motion execution delay time setting module is used to set the execution delay time of the reverse motion of the synchronous reverse neutron valve. The execution delay time includes the pre-execution delay time and the post-execution delay time of the reverse motion. The pre-execution delay time is the interval time when, when the action in the action process reaches the execution segment, after delaying a preset duration, the reverse motion is executed again. The post-execution delay time is the interval time when, after the reverse motion of the synchronous reverse neutron valve is executed, after delaying a preset duration, it enters the next action in the action process or continues the previous action.

[0088] The present invention also includes setting the execution delay time of the forward motion of the synchronous forward neutron valve and the execution delay time of the reverse motion of the synchronous reverse neutron valve, realizing flexible control of the corresponding execution time of the neutron valve actions.

[0089] The execution segment includes: before injection, after mold closing, after top forward, and in the middle of the action. The middle of the action includes in the middle of the tray reverse and in the middle of the mold opening.

[0090] The forward motion execution delay time setting module is also used to: set the execution position of the forward motion of the synchronous forward neutron valve in the middle of the action.

[0091] The reverse motion execution delay time setting module is also used to set the execution position of the reverse motion of the synchronous reverse neutron valve in the middle of the action.

[0092] When the execution segment is in the middle of the action in the present invention, setting the execution position of the forward motion of the synchronous forward neutron valve in the middle of the action and setting the execution position of the reverse motion of the synchronous reverse neutron valve in the middle of the action further improves the accuracy of the action execution of the synchronous forward neutron valve and the synchronous reverse neutron valve.

[0093] The neutron valve control system further includes:

[0094] The priority setting module is used to set the action execution priority of each asynchronous neutron valve in the action process, and the action execution priority of the asynchronous neutron valve and the synchronous neutron valve in the action process. The asynchronous neutron valve includes the neutron valve with asynchronous forward motion and the neutron valve with asynchronous reverse motion. The synchronous neutron valve includes the neutron valve with synchronous forward motion and the neutron valve with synchronous reverse motion.

[0095] The neutron valve control method of the present invention can control multiple synchronous neutron valves to act simultaneously, greatly shortening the process production cycle for some processes that have no requirements for the action sequence of neutron valves, alleviating the production pressure of customers, and significantly reducing the production cycle. In addition, the present invention can flexibly set the synchronous-in neutron valves and synchronous-out neutron valves according to preset requirements, as well as the corresponding execution bit segments and execution delay times for the actions. It has a wide range of applicable scenarios, high flexibility in system control, and strong editability, and is applicable to different process requirements.

[0096] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.

[0097] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are only for descriptive purposes and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0098] In the present invention, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

Claims

1. A control method for a neutron valve of an injection molding machine, characterized in that, Including steps: S1: Obtain the neutron valve group to be used, and set the neutron valves for synchronous advancement in the neutron valve group to be used; S2: Set the execution bit segment of the advancement action of the synchronous advancement neutron valve in the action process; S3: Set the execution delay time of the advancement action of the synchronous advancement neutron valve, where the execution delay time includes the pre-execution delay time and the post-execution delay time of the advancement action; the pre-execution delay time is the interval time when, when the action in the action process executes to the execution bit segment, after a preset duration of delay, the advancement action is executed; the post-execution delay time is the interval time when, when the advancement action of the synchronous advancement neutron valve is completed, after a preset duration of delay, it enters the next action in the action process or continues the previous action; S4: Set the neutron valves for synchronous retraction in the neutron valve group to be used; S5: Set the execution bit segment of the retraction action of the synchronous retraction neutron valve in the action process; S6: Set the execution delay time of the retraction action of the synchronous retraction neutron valve, where the execution delay time includes the pre-execution delay time and the post-execution delay time of the retraction action; the pre-execution delay time is the interval time when, when the action in the action process executes to the execution bit segment, after a preset duration of delay, the retraction action is executed; the post-execution delay time is the interval time when, when the retraction action of the synchronous retraction neutron valve is completed, after a preset duration of delay, it enters the next action in the action process or continues the previous action.

2. The neutron valve control method for an injection molding machine according to claim 1, characterized in that, The execution bit segment includes: before injection, after mold closing, after ejection, and in the middle of the action; the middle of the action includes in the middle of ejector retraction and in the middle of mold opening.

3. A control method for a neutron valve of an injection molding machine according to claim 2, characterized in that, When the execution bit segment is in the middle of the action, step S3 further includes: setting the execution position of the advancement action of the synchronous advancement neutron valve in the middle of the action; Step S6 further includes: setting the execution position of the retraction action of the synchronous retraction neutron valve in the middle of the action.

4. A method for controlling a neutron valve for an injection molding machine according to claim 1, characterized in that, The neutron valve control method further includes: Setting the action execution priorities of each asynchronous neutron valve in the action process, and the action execution priorities of asynchronous neutron valves and synchronous neutron valves in the action process, where the asynchronous neutron valves include the neutron valves for asynchronous advancement and the neutron valves for asynchronous retraction; the synchronous neutron valves include the neutron valves for synchronous advancement and the neutron valves for synchronous retraction.

5. A method for controlling a neutron valve for an injection molding machine according to claim 1, characterized in that, The process actions in the action process are in sequence: Cycle start, mold closing, injection and holding pressure, material storage, mold opening, ejection, ejector retraction, cycle end.

6. A neutron valve control system for an injection molding machine, characterized in that, Including: A synchronous advancement neutron valve setting module, configured to obtain the neutron valve group to be used, and set the neutron valves for synchronous advancement in the neutron valve group to be used; An advancement action execution bit segment setting module, configured to set the execution bit segment of the advancement action of the synchronous advancement neutron valve in the action process; A synchronous retraction neutron valve setting module, configured to set the neutron valves for synchronous retraction in the neutron valve group to be used; A retraction action execution bit segment setting module, configured to set the execution bit segment of the retraction action of the synchronous retraction neutron valve in the action process; The neutron valve control system further includes: The forward action execution delay time setting module is used to set the execution delay time of the forward action of the synchronous forward neutron valve. The execution delay time includes the pre-execution delay time and the post-execution delay time of the forward action. The pre-execution delay time is the interval time when, when the action in the action process reaches the execution segment, after a preset duration of delay, the forward action is executed again. The post-execution delay time is the interval time when, after the forward action of the synchronous forward neutron valve is executed, after a preset duration of delay, it enters the next action in the action process or continues the previous action. The backward action execution delay time setting module is used to set the execution delay time of the backward action of the synchronous backward neutron valve. The execution delay time includes the pre-execution delay time and the post-execution delay time of the backward action. The pre-execution delay time is the interval time when, when the action in the action process reaches the execution segment, after a preset duration of delay, the backward action is executed again. The post-execution delay time is the interval time when, after the backward action of the synchronous backward neutron valve is executed, after a preset duration of delay, it enters the next action in the action process or continues the previous action.

7. The neutron valve control system for an injection molding machine according to claim 6, characterized in that, The execution segment includes: before injection, after mold clamping, after top forward, and in the middle of the action. The middle of the action includes in the middle of the ejector backward and in the middle of the mold opening.

8. The neutron valve control system for an injection molding machine according to claim 7, wherein The forward action execution delay time setting module is also used to: set the execution position of the forward action of the synchronous forward neutron valve in the middle of the action. The backward action execution delay time setting module is also used to set the execution position of the backward action of the synchronous backward neutron valve in the middle of the action.

9. The neutron valve control system for an injection molding machine according to claim 6, wherein, The neutron valve control system further includes: The priority setting module is used to set the action execution priority of each asynchronous neutron valve in the action process, and the action execution priority of the asynchronous neutron valve and the synchronous neutron valve in the action process. The asynchronous neutron valves include the neutron valve for asynchronous forward and the neutron valve for asynchronous backward. The synchronous neutron valves include the neutron valve for synchronous forward and the neutron valve for synchronous backward.

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