Mould clamping force operation monitoring device of injection molding machine

Abstract

The utility model discloses an injection molding machine mold clamping force operation monitoring device, which belongs to the technical field of injection molding machine mold clamping force monitoring and comprises an injection molding machine body, the injection molding machine body comprises a movable mold plate and a fixed mold plate, and the distance between the movable mold plate and the fixed mold plate is adjustable; the driving part comprises a driver and a driving piece, and the driver is connected with the movable mold plate through the driving piece so as to drive the movable mold plate to be close to or away from the fixed mold plate; and the number of the tiebars is multiple, the tiebars penetrate through the movable mold plate and the fixed mold plate, and force sensors are arranged on the tiebars. The injection molding machine clamping force operation monitoring device provided by the utility model realizes stable monitoring of the injection molding machine clamping force, and compared with a manual meter reading method, the injection molding machine clamping force operation monitoring device can effectively reduce the measurement error of the clamping force, does not have the reading error caused by the reading of a dial indicator, and improves the monitoring precision of the injection molding machine clamping force.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamping force monitoring of injection molding machines, and particularly relates to a device for monitoring the operation of the clamping force of an injection molding machine. Background Art

[0002] An injection molding machine is the main molding equipment for thermoplastic or thermosetting plastics to produce various shaped plastic products using plastic molding dies. An injection molding machine usually consists of an injection system, a mold clamping system, a hydraulic transmission system, an electrical control system, a heating and cooling system, a safety detection system, etc. Its working principle is similar to that of a syringe. With the thrust of a screw, the plastic in a molten state that has been plasticized is injected into a closed mold cavity, and the product is obtained after solidification and shaping.

[0003] The clamping force refers to the clamping force that the mold clamping mechanism of an injection molding machine can exert on the mold, which is set to resist the mold expansion force generated when the molten rubber is filled into the mold under a high injection pressure. Currently, for the monitoring of the clamping force, the manual reading method is usually adopted, that is, a dial indicator is used to measure the strain at a certain place of the mold clamping mechanism, usually the strain of the tie rod, and then the strain value of the tie rod is calculated by comparing it with the original length of the tie rod. The human error of this clamping force monitoring method is very large, resulting in poor accuracy. Because the deformation of the force-receiving surface of the equipment is measured by the mechanical rotation of the dial indicator pointer, there are relatively large measurement principle errors and reading errors. Content of the Utility Model

[0004] The utility model overcomes the deficiencies of the prior art and provides a device for monitoring the operation of the clamping force of an injection molding machine to solve the problems existing in the prior art.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a device for monitoring the operation of the clamping force of an injection molding machine, comprising

[0006] An injection molding machine body, the injection molding machine body includes a moving template and a fixed template, and the distance between the moving template and the fixed template is adjustable;

[0007] A driving part, the driving part includes a driver and a driving member, and the driver is connected to the moving template through the driving member to drive the moving template to approach or move away from the fixed template;

[0008] A tie rod, the number of tie rods is several, and the tie rods penetrate through the moving template and the fixed template, and a force sensor is arranged on the tie rod. When the moving template moves, the tie rod deforms, and the clamping force is obtained by the force sensor.

[0009] In a preferred embodiment of the present utility model, a fixing member is provided at the top of the tie bar, the fixing member is fixedly connected to the tie bar, and the driving part is installed on the fixing member.

[0010] In a preferred embodiment of the present utility model, the moving template is connected to the fixing member through a connecting member. When the driving part drives the moving template, the moving template pulls the fixing member through the connecting member, so that the tie bar deforms.

[0011] In a preferred embodiment of the present utility model, the connecting member includes a plurality of connecting blocks, and the connecting member is fixedly connected to the fixing member and the moving template respectively.

[0012] In a preferred embodiment of the present utility model, the number of the tie bars is four and they are arranged in parallel with each other. The tie bars are located at the four corner positions of the moving template.

[0013] In a preferred embodiment of the present utility model, the force sensor is installed on the tie bar and is located above the moving template.

[0014] In a preferred embodiment of the present utility model, the driver is a cylinder, and the moving template is driven through the driving member.

[0015] The present utility model solves the defects existing in the background technology and has the following beneficial effects:

[0016] The injection molding machine clamping force operation monitoring device of the present utility model realizes the stable monitoring of the clamping force of the injection molding machine. Compared with the manual reading method, it can effectively reduce the measurement error of the clamping force, and there will be no reading error caused by the reading of the micrometer, improving the monitoring accuracy of the clamping force of the injection molding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0018] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present utility model;

[0019] Figure 2 It is a side view of a preferred embodiment of the present utility model;

[0020] Figure 3 It is a front view of a preferred embodiment of the present utility model;

[0021] In the figure: 10, injection molding machine body; 11, moving template; 12, fixed template; 20, driving part; 21, driver; 22, driving member; 30, tie bar; 31, force sensor; 40, fixing member; 50, connecting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will disclose multiple embodiments of the present utility model with diagrams. For the sake of clear illustration, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these practical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.

[0023] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes, and do not particularly refer to the order or sequence. Nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments 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 conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0024] This embodiment provides a monitoring device for the operating clamping force of an injection molding machine. This monitoring device for the operating clamping force of an injection molding machine realizes stable monitoring of the clamping force of the injection molding machine. Compared with the manual reading method, it can effectively reduce the measurement error of the clamping force, and there will be no reading error caused by the reading of the dial indicator, improving the monitoring accuracy of the clamping force of the injection molding machine.

[0025] Combined Figures 1 to 3 As shown, the monitoring device for the operating clamping force of the injection molding machine in this embodiment includes an injection molding machine body 10, a driving part 20, and a tie bar 30. The injection molding machine body 10 includes a moving template 11 and a fixed template 12. The distance between the moving template 11 and the fixed template 12 is adjustable, and the mold is located between the moving template 11 and the fixed template 12. The driving force of the moving template 11 is the clamping force of the mold. The driving part 20 drives the moving template 11 to provide a driving force for the moving template 11, and the tie bar 30 will deform under the action of the driving force. According to the deformation situation of the tie bar 30, the clamping force can be obtained.

[0026] In this embodiment, the driving part 20 includes a driver 21 and a driving member 22. The driver 21 is connected to the moving template 11 through the driving member 22 to drive the moving template 11 to approach or move away from the fixed template 12. The driver 21 in this embodiment is a cylinder. The cylinder drives the moving template 11 through the driving member 22 to press down on the mold to provide the clamping force. Therefore, the force received by the moving template 11 is the clamping force of the mold.

[0027] Combined with Figure 1 and Figure 2 As shown, a fixing member 40 is provided at the top of the tie bar 30 in this embodiment. The fixing member 40 is fixedly connected to the tie bar 30. The driving part 20 is installed on the fixing member 40. The moving template 11 is connected to the fixing member 40 through a connecting member 50. When the driving part 20 drives the moving template 11, the moving template 11 pulls the fixing member 40 through the connecting member 50, so that the tie bar 30 deforms. Under the combined action of the fixing member 40 and the connecting member 50, when the driver 21 drives the moving template 11, the tie bar 30 can be deformed to determine the clamping force of the mold.

[0028] In this embodiment, the connecting member 50 includes a plurality of connecting blocks. The connecting member 50 is fixedly connected to the fixing member 40 and the moving template 11 respectively. When the moving template 11 moves, the fixing member 40 is driven to move through the connecting member 50, thereby squeezing the tie bar 30 and deforming the tie bar 30.

[0029] Combined with Figure 1 and Figure 3 As shown, the number of tie bars 30 in this embodiment is several, and the tie bars 30 penetrate through the moving template 11 and the stationary template 12. A force sensor 31 is provided on the tie bar 30. When the moving template 11 moves, the tie bar 30 deforms, and the clamping force is obtained by the force sensor 31. The force sensor 31 is installed on the tie bar 30 and is located above the moving template 11. When the tie bar 30 is deformed by force, the force sensor 31 on the tie bar 30 displays the force received by the tie bar 30 in real time, that is, it reflects the clamping force of the mold.

[0030] In this embodiment, the number of tie bars 30 is four, and they are arranged in parallel with each other. The tie bars 30 are located at the four corner positions of the moving template 11. The presence of the four tie bars 30 can monitor the clamping force from multiple positions and improve the accuracy.

[0031] In actual use of the clamping force operation monitoring device of the injection molding machine in this embodiment, the mold is located between the moving template 11 and the stationary template 12. The driving part 20 presses down on the moving template 11. At this time, the pressure received by the moving template 11 is the clamping force of the mold. When the moving template 11 is pressed down, the tie bar 30 will deform, and the force sensor 31 on the tie bar 30 can monitor the force received by the tie bar 30 in real time. Therefore, the real-time monitoring of the clamping force of the mold is realized. It realizes the stable monitoring of the clamping force of the injection molding machine. Compared with the manual reading method, it can effectively reduce the measurement error of the clamping force, and there will be no reading error caused by the reading of the dial indicator, improving the monitoring accuracy of the clamping force of the injection molding machine.

[0032] Although the present utility model has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present utility model. That is to say, the methods, systems or devices discussed above are all examples. Various configurations can be appropriately omitted, replaced or added with various processes or components. For example, in an alternative configuration, the method can be executed in an order different from the described order, and / or various stages can be added, omitted and / or combined. Moreover, the features described with respect to certain configurations can be combined in various other configurations. Different aspects and elements of the configuration can be combined in a similar manner. In addition, with the development of technology, many elements are only examples and do not limit the scope of the present disclosure or the claims.

[0033] Specific details are given in the specification to provide a thorough understanding of the exemplary configurations including the implementation. However, the configurations can be practiced without these specific details. For example, well-known circuits, processes, algorithms, structures and technologies have been shown without unnecessary details to avoid obscuring the configurations. The description only provides exemplary configurations and does not limit the scope, applicability or configuration of the claims. On the contrary, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described technologies. Various changes can be made to the functions and arrangements of the elements without departing from the spirit or scope of the present disclosure.

[0034] In addition, although each operation can be described as a sequential process, many operations can be performed in parallel or simultaneously. In addition, the order of the operations can be rearranged. A process may have other steps. In addition, the examples of the method can be implemented by hardware, software, firmware, middleware, code, a hardware description language or any combination thereof. When implemented in software, firmware, middleware or code, the program code or code segments for performing the necessary tasks can be stored in a non-transitory computer-readable medium such as a storage medium and executed by a processor to perform the described tasks.

[0035] In summary, it is intended that the above detailed description be considered illustrative rather than restrictive, and it should be understood that the claims (including all equivalents) are intended to define the spirit and scope of the present utility model. The above embodiments should be understood as only for illustrating the present utility model and not for limiting the protection scope of the present utility model. After reading the content recorded in the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent changes and modifications also fall within the scope defined by the claims of the present utility model.

Claims

1. An injection molding machine clamping force operation monitoring device, characterized in that, including an injection molding machine body (10), the injection molding machine body (10) includes a moving template (11) and a fixed template (12), and the distance between the moving template (11) and the fixed template (12) is adjustable; a driving part (20), the driving part (20) includes a driver (21) and a driving member (22), the driver (21) is connected to the moving template (11) through the driving member (22) to drive the moving template (11) to approach or move away from the fixed template (12); tie bars (30), the number of the tie bars (30) is several, and the tie bars (30) penetrate through the moving template (11) and the fixed template (12), a force sensor (31) is arranged on the tie bars (30), when the moving template (11) moves, the tie bars (30) are deformed, and the clamping force is obtained by the force sensor (31).

2. The injection molding machine clamping force operation monitoring device according to claim 1, wherein, a fixing member (40) is arranged at the top of the tie bar (30), the fixing member (40) is fixedly connected to the tie bar (30), and the driving part (20) is installed on the fixing member (40).

3. The injection molding machine clamping force operation monitoring device according to claim 2, wherein the moving template (11) is connected to the fixing member (40) through a connecting member (50), when the driving part (20) drives the moving template (11), the moving template (11) pulls the fixing member (40) through the connecting member (50) to deform the tie bar (30).

4. The injection molding machine clamping force operation monitoring device according to claim 3, characterized in that the connecting member (50) includes a plurality of connecting blocks, and the connecting member (50) is fixedly connected to the fixing member (40) and the moving template (11) respectively.

5. The mold clamping force operation monitoring device of an injection molding machine according to claim 1, characterized in that, the number of the tie bars (30) is four and they are arranged in parallel to each other, and the tie bars (30) are located at the four corner positions of the moving template (11).

6. The injection molding machine clamping force operation monitoring device according to claim 1, wherein the force sensor (31) is installed on the tie bar (30) and is located above the moving template (11).

7. The running monitoring device for the clamping force of an injection molding machine according to claim 1, characterized in that, the driver (21) is a cylinder, and the moving template (11) is driven through the driving member (22).

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