A detection device and detection method for an electronic mold of in-mold decoration printing

Abstract

The application relates to the technical field of electronic mold detection, in particular to a detection device and method for an in-mold decoration printed electronic mold, which comprises a positioning part, the positioning part is sheet-shaped, a movable part, the movable part is symmetrical with the positioning part and is consistent in shape, a pin shaft, the pin shaft is rotatably connected to one end of the positioning part and the movable part, a torsional spring, the torsional spring is sleeved on the pin shaft, the positioning part and the movable part are hinged through the torsional spring, and a sensing assembly, the sensing assembly is arranged on the inner side of the positioning part and the movable part and is used for sensing the pressure on the inner side of the positioning part and the movable part. The device drives the sensing assembly to detect the electronic mold through a holding part, and the sensing assembly is opened in cooperation with an expansion part, so that workers can overcome the limitation of a narrow space to detect the electronic mold, and the detection efficiency and convenience of the workers are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic mold detection, in particular to a detection device and method for an in-mold decoration printed electronic mold. BACKGROUND

[0002] In-mold decoration printing is a decoration process applied to plastic shells. The process is to first place a patterned film on the inner wall of the mold, where the patterned film has an ink pattern, then inject plastic through the pouring gate of the mold, so that the plastic fills the mold cavity. After the plastic in the mold cavity solidifies, the mold and the patterned film are removed, and the in-mold decoration printing process is completed, where the ink pattern of the patterned film is transferred to the solidified plastic. The mold used for decoration printing is called an electronic mold. The electronic mold is a kind of mold, mainly used in the electronic field.

[0003] The electronic mold needs to be detected during use to ensure the effective operation of the mold components, such as the hot runner, exhaust port, guide pillar and sleeve, to prevent accidents; check whether there is wear between the guide pillar and the guide sleeve - find out if there are scratches or wear. If the wear is severe, it may cause the cavity and core parts to not fit well, resulting in different cavity wall thicknesses; the mold itself has a certain width, and the mold used in the processing plant is in batches, so the staff need to surround the edge of the mold to detect the guide pillar on the mold, otherwise they cannot reach the mold, and the detection process is inefficient; and individual molds due to the relationship between the placement position, so that the staff cannot overcome the limitation of the small space to detect, causing detection difficulty and inconvenience.

[0004] In view of this, in order to overcome the above technical problems, the present application provides a detection device and method for an in-mold decoration printed electronic mold, which solves the above technical problems. SUMMARY

[0005] In order to make up for the shortcomings of the prior art, the present application provides a detection device and method for an in-mold decoration printed electronic mold. The device detects the electronic mold by the gripping portion driving the sensing assembly. In cooperation with the expansion portion assisting the sensing assembly to open, the staff can overcome the limitation of the small space to detect the electronic mold, so that the detection efficiency and convenience of the staff are improved.

[0006] The technical solution adopted by the present application to solve its technical problems is: a detection device for an in-mold decoration printed electronic mold, comprising:

[0007] a positioning portion; the positioning portion is sheet-shaped;

[0008] a movable portion; the movable portion is symmetrical with the positioning portion and has the same shape as the positioning portion;

[0009] A pin shaft is rotatably connected to one end of the positioning part and the movable part;

[0010] A torsion spring is sleeved on the pin shaft, and the positioning part and the movable part are hinged by the torsion spring;

[0011] An induction assembly is arranged on the inner side of the positioning part and the movable part, and is used for sensing the pressure on the inner side of the positioning part and the movable part; the induction assembly comprises a pressure sensor, a spring, an induction rod and a groove; the groove is arranged on the inner side wall of the positioning part and the movable part; the pressure sensor is arranged on the groove bottom, the induction rod is in sliding connection with the groove, and the induction rod and the pressure sensor are connected by the spring;

[0012] A controller is used for controlling the automatic operation of the induction assembly; the pressure sensor transmits the sensed pressure value to the controller;

[0013] The detection device of the in-mold decoration printing electronic mold further comprises:

[0014] A holding part is rod-shaped and fixedly connected to one end of the positioning part;

[0015] An expansion part is sheet-shaped, and one end of the expansion part is fixedly connected to the other end of the positioning part and the movable part respectively; the distance between the other ends of the two expansion parts is greater than the distance between the one ends.

[0016] Preferably, the positioning part and the movable part are both arc-shaped sheets and are both inwardly curved.

[0017] Preferably, the expansion part is connected by a plurality of expansion plates in sliding connection with each other; adjacent expansion plates are connected by a spring; a sliding groove is arranged between adjacent two expansion plates; the sliding groove is arranged on the side of the expansion plate away from the torsion spring, and the expansion plate is in sliding connection in the corresponding sliding groove.

[0018] Preferably, adjacent two expansion plates are connected by a guide film; the guide film is made of an elastic material, such as rubber.

[0019] Preferably, flexible brushes are fixedly connected to the two sides of the positioning part and the movable part.

[0020] Preferably, the holding part is made of a magnet; the thickness of the holding part is not less than the sum of the thicknesses of the flexible brush and the movable part.

[0021] Preferably, the part where the other ends of the positioning part and the movable part are close to each other is provided with a containing groove; a roller is rotatably connected between the two groove walls of the containing groove.

[0022] Preferably, the outer edge of the roller is made of a water-absorbing material, such as cotton; and the accommodating groove is filled with a lubricant, such as lubricating oil.

[0023] A detection method of an in-mold decoration printing electronic mold, which is suitable for the detection device of the in-mold decoration printing electronic mold, and the steps of the method are as follows:

[0024] S1: the detection device is cleaned as a whole, then the holding part is held by hand, the positioning part, the movable part and the sensing assembly are moved by the holding part, so that these parts are driven to approach the guide column to be detected, and then the included angle formed by the two expansion parts, i.e. the other end of the two expansion parts, approaches the guide column to be detected;

[0025] S2: an external force is applied to the holding part, and under the pushing of the holding part, the two expansion parts are moved away from each other, the guide column moves relatively to the space between the two expansion parts, the roller rolls under the friction of the guide column, the lubricant in the accommodating groove is applied to the outer wall of the guide column, and as the external force continues to be applied to the holding part, the guide column is squeezed to move between the positioning part and the movable part;

[0026] S3: the positioning part and the movable part are closed under the action of the torsion spring, the sensing assembly records the current pressure value and transmits it to the controller in real time, the worker drives the holding part to drive the positioning part and the movable part to move up and down along the guide column, or the holding part is adsorbed at the lower end of the upper mold, and the positioning part and the movable part are driven to move up and down along the guide column by the upper mold; so that the wear of the whole guide column can be fed back by the sensing assembly;

[0027] S4: after detection, the holding part is pulled to squeeze the movable part away from the guide column, so that the movable part and the positioning part are away from the guide column, and the detection device is removed, so that the detection of the guide column in the electronic mold is completed.

[0028] The beneficial effects of the present application are as follows:

[0029] 1. The present application detects the electronic mold by the holding part driving the sensing assembly, and cooperates with the expansion part to assist the sensing assembly to open, so that the worker can overcome the limitation of the narrow space to detect the electronic mold, and the detection efficiency and convenience of the worker are improved.

[0030] 2. The positioning part and the movable part are set in an arc-shaped sheet shape, so that the positioning part and the movable part will not be affected by the obstruction of the two ends to detect other specifications of the guide column, so that the detection range of the detection device is expanded, and after the outer wall of the guide column is detected, the holding part is rotated around the guide column, so that the sensing assembly detects another part of the guide column, so that omnidirectional detection is achieved.

[0031] 3. The present application prevents the expansion part from being stuck by obstacles around the guide post to be detected by setting the expansion part in an extendable state, so that the expansion plate in the expansion part first plays a role of guiding expansion, and then slides along the sliding groove by overcoming the elastic force of the second spring when encountering obstacles, so as to make the adjacent expansion plates close to each other and reserve movement space for the movement of the positioning part and the movable part. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0033] The structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0034] Figure 1 is a perspective view of the present application;

[0035] Figure 2 is Figure 1 is an enlarged view of A in

[0036] Figure 3 is Figure 1 is an enlarged view of B in

[0037] Figure 4 is a sectional view of the present application;

[0038] Figure 5 is Figure 4 is an enlarged view of C in

[0039] Figure 6 is Figure 4 is an enlarged view of D in

[0040] Figure 7 is Figure 4 is an enlarged view of E in

[0041] Figure 8 is a flow chart of the method of the present application;

[0042] In the figure: 1. Positioning part; 2. Movable part; 21. Receiving groove; 22. Roller; 3. Pin; 4. Torsion spring; 5. Sensing component; 6. Holding part; 7. Expansion part; 71. Expansion plate; 72. No. 2 spring; 73. Guide film; 8. Flexible brush. DETAILED DESCRIPTION

[0043] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0045] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0046] like Figures 1 to 8 As shown, the detection device for an electronic mold with in-mold decoration printing according to the present invention includes:

[0047] Positioning portion 1; the positioning portion 1 is sheet-shaped;

[0048] The movable portion 2 is consistent in shape with the positioning portion 1 and is symmetrically arranged;

[0049] The pin 3 is connected to one end of the positioning portion 1 and the movable portion 2 and is rotatably connected to each other;

[0050] torsion spring 4; the torsion spring 4 is sleeved on the pin 3; the positioning portion 1 and the movable portion 2 are hinged via the torsion spring 4;

[0051] An inductive assembly 5 is arranged on the inner side of the positioning part 1 and the movable part 2, for sensing the pressure on the inner side of the positioning part 1 and the movable part 2; the inductive assembly 5 comprises a pressure sensor, a spring, an inductive rod and a groove; the groove is arranged on the inner side wall of the positioning part 1 and the movable part 2; the pressure sensor is arranged on the groove bottom, and the inductive rod is in sliding connection with the groove; the inductive rod and the pressure sensor are connected through the spring;

[0052] A controller is arranged for controlling the automatic operation of the inductive assembly 5; the pressure sensor transmits the sensed pressure value to the controller;

[0053] The detection device of the in-mold decoration printing electronic mold further comprises:

[0054] A holding part 6 is in rod shape and is fixedly connected with one end of the positioning part 1;

[0055] An expansion part 7 is in sheet shape and is fixedly connected with the other end of the positioning part 1 and the movable part 2 respectively; the distance between the other ends of the two expansion parts 7 is greater than the distance between the one ends;

[0056] In operation, the electronic mold needs to be detected in use to ensure the effective operation of the mold components, such as the hot runner, exhaust port, guide column and sleeve, to prevent accidents; check whether there is wear between the guide column and the guide sleeve - find out whether there is scratch or wear. If the wear is serious, it may cause the cavity and core parts to not fit well, resulting in different cavity wall thickness; the mold itself has a certain width, and the mold used in the processing plant is in batches, so the staff needs to surround the edge of the mold to detect the guide column on the mold, otherwise it cannot reach the mold, and the detection process is inefficient; and due to the relationship between the placement position of individual molds, the staff cannot overcome the limitation of the narrow space to detect, causing detection difficulty and inconvenience;

[0057] Therefore, when the staff needs to overcome the limitation of the small space to detect the guide pillar, only needs to hold the holding part 6, moves the positioning part 1, the movable part 2, the sensing assembly 5 and other components through the holding part 6, so that these components are driven to approach the guide pillar to be detected, the included angle formed by the two expansion parts 7, that is, the other end of the two expansion parts 7 approaches the guide pillar to be detected, then, an external force is applied to the holding part 6, the force is transmitted to the two expansion parts 7 under the pushing of the holding part 6 and the force transmission of the positioning part 1 and the movable part 2, under the action of the external force applied to the guide pillar by the expansion part 7, the guide pillar feeds back a reaction force to the two expansion parts 7, one of the expansion parts 7 is fixedly connected to the positioning part 1, so that the other expansion part 7 moves away from the one expansion part 7 under the action of the reaction force, after the two expansion parts 7 move away, the guide pillar moves relatively to the two expansion parts 7, with the continuous application of the external force to the holding part 6, the guide pillar is squeezed and moves to between the positioning part 1 and the movable part 2, and the positioning part 1 and the movable part 2 are closed under the action of the torsion spring 4, and since the sensing assembly 5 is arranged on the inner side of the positioning part 1 and the movable part 2, the sensing assembly 5 records the current pressure value and transmits the current pressure value to the controller in real time, the staff drives the holding part 6 to drive the positioning part 1 and the movable part 2 to move up and down along the guide pillar, so that the wear condition of the whole guide pillar can be fed back through the sensing assembly 5, if the surface of the guide pillar is concave, the sensing rod in the sensing assembly 5 moves away from the pressure sensor, the first spring is elongated, and the pressure detected by the pressure sensor is lower than the original value, if the surface of the guide pillar is convex, the sensing rod in the sensing assembly 5 approaches the pressure sensor, the first spring is compressed, and the pressure detected by the pressure sensor is higher than the original value, the guide pillar in the initial state needs to be recorded by the sensing assembly 5, the relationship between the pressure and the distance can be obtained according to the formula F=K*X, and if the difference between the current detected pressure value and the original pressure value is greater than the set range, corresponding measures need to be taken, for example, the lubricant is applied or the spare parts are replaced, after the detection, only needs to pull the holding part 6, so that the guide pillar squeezes and separates the movable part 2, the movable part 2 and the positioning part 1 move away from the guide pillar, the detection device is removed, and the detection of the guide pillar in the electronic mold is completed, the sensing assemblies 5 are staggered, so that the detection failure caused by the damage of one of the sensing assemblies 5 is prevented, so that even if one of the sensing assemblies 5 is damaged, the other sensing assemblies 5 can also sense.

[0058] The holding part 6 drives the sensing assembly 5 to detect the electronic mold, the expansion part 7 cooperates with the sensing assembly 5 to open, so that the staff can overcome the limitation of the small space to detect the electronic mold, and the detection efficiency and convenience of the staff are improved.

[0059] As an embodiment of the present application, the positioning part 1 and the movable part 2 are both arc-shaped sheet, and both are inwardly curved; during operation, by setting the positioning part 1 and the movable part 2 as arc-shaped sheet, the positioning part 1 and the movable part 2 will not be affected by the two ends to detect other specifications of guide column, so setting as arc-shaped sheet expands the detection range of the detection device, after detecting the upper and lower outer wall of the guide column, rotating the holding part 6 around the guide column, so that the induction assembly 5 detects another part of the guide column, so as to achieve all-round detection.

[0060] As an embodiment of the present application, the expansion part 7 is connected by a plurality of expansion plates 71 sliding with each other; and the adjacent expansion plates 71 are connected by the second spring 72; the adjacent two expansion plates 71 are provided with a sliding groove; the sliding groove is opened on the side of the expansion plate 71 away from the torsion spring 4, and the expansion plate 71 is slidingly connected in the corresponding sliding groove; during operation, by setting the expansion part 7 in an extendable state, the expansion part 7 is prevented from being affected by obstacles around the guide column to be detected, and this way will make the expansion plate 71 in the expansion part 7 first play a guiding expansion role, and then when encountering obstacles, the expansion plate 71 will slide along the sliding groove against the elastic force of the second spring 72, so that the adjacent expansion plates 71 are close to each other, reserving movement space for the movement of the positioning part 1 and the movable part 2.

[0061] As an embodiment of the present application, the adjacent two expansion plates 71 are connected by a guide film 73; the guide film 73 is made of elastic material, such as rubber; during operation, during the contact between the expansion plate 71 and the guide column, the guide column will generate a reaction force on the expansion plate 71, and as the expansion plate 71 is pushed by the holding part 6, the guide column will also move along the expansion plate 71, and through the guiding effect of the guide film 73 on the guide column, the guide column will not drive the expansion plate 71 to shrink, thereby ensuring the expansion effect of the expansion plate 71, and the guide film 73 will not wrinkle after the expansion plate 71 shrinks due to its elastic properties, ensuring the smoothness of the inside of the expansion part 7; even if the guide film 73 shrinks, it can also wipe the guide column through the wrinkles, achieving the purpose of preliminary cleaning, preventing impurities from affecting the detection accuracy.

[0062] As an embodiment of the present application, the two sides of the positioning part 1 and the movable part 2 are both fixedly connected with flexible brushes 8; during operation, during the movement of the holding part 6 along the axis of the guide column, the movable part 2 and the positioning part 1 will drive the flexible brushes 8 to preliminarily clean the impurities on the outer wall of the guide column, preventing impurities from adhering to the outside of the guide column and causing sensing errors of the induction assembly 5, and the generation of errors is that the impurities will expand the outer diameter of the guide column, causing the first spring to be shorter than before, causing the sensing pressure of the pressure sensor to be larger, and this can be avoided by the flexible brushes 8.

[0063] As an embodiment of the present application, the holding part 6 is made of a magnet; the thickness of the holding part 6 is not less than the sum of the thicknesses of the flexible brush 8 and the movable part 2; during operation, the worker can also adsorb the holding part 6 to the lower end of the upper mold, so that the holding part 6, the positioning part 1 and the movable part 2 can be moved by the lowering of the upper mold, so that the worker is freed from driving the positioning part 1 and the movable part 2 to move up and down, thus freeing the hands of the worker, making the detection process more convenient and safer, and by limiting the thickness of the holding part 6, the holding part 6 will not be hindered by the flexible brush 8 when adsorbed to the upper mold, so that the detection device will not be parallel to the horizontal plane, ensuring that the positioning part 1 and the movable part 2 move along the axis of the guide column in parallel, so that the detection is more accurate.

[0064] As an embodiment of the present application, the part where the positioning part 1 and the other end of the movable part 2 are close to each other is provided with a containing groove 21; the two groove walls of the containing groove 21 are rotatably connected with a roller 22; during operation, the transition part of the expansion part 7 and the positioning part 1 and the transition part of the expansion part 7 and the movable part 2 are provided with the roller 22, so that the original sliding friction is changed to rolling friction, so that the guide column reduces the friction whether it slides out of the positioning part 1 and the movable part 2 or slides in, so that the resistance of the detection process is reduced, greatly improving the detection efficiency.

[0065] As an embodiment of the present application, the outer edge of the roller 22 is made of a water-absorbing material, such as cotton; the containing groove 21 is injected with a lubricant, such as lubricating oil; during operation, the outer edge of the roller 22 absorbs the lubricant from the containing groove 21 by rolling, and then applies it to the guide column, and the water-absorbing material on the roller 22 is extruded by the guide column, so that the lubricant is extruded out, the guide column with the lubricant applied to its surface is smoother, so that the resistance in the detection process is further reduced, and the step of lubricating the guide column after detection is also omitted, greatly facilitating the use of the worker.

[0066] A detection method of an in-mold decoration printing electronic mold, which is suitable for the detection device of the in-mold decoration printing electronic mold described above, and the steps of the method are as follows:

[0067] S1: first clean the detection device as a whole, then hold the holding part 6 by hand, drive the positioning part 1, the movable part 2, the sensing assembly 5 and other components to move through the holding part 6, so that these components are driven to approach the guide column to be detected, and the included angle formed by the two expansion parts 7, i.e. the other end of the two expansion parts 7, approaches the guide column to be detected;

[0068] S2: an external force is applied to the holding part 6, under the push of the holding part 6, the two expansion parts 7 are away from each other, the guide post moves to the space between the two expansion parts 7, the roller 22 rolls under the friction of the guide post, the lubricant in the containing groove 21 is applied to the outer wall of the guide post, and as the external force continues to be applied to the holding part 6, the guide post is squeezed and moves to the space between the positioning part 1 and the movable part 2;

[0069] S3: the positioning part 1 and the movable part 2 are closed under the action of the torsion spring 4, the inductive assembly 5 records the current pressure value and transmits it to the controller in real time, the worker drives the holding part 6 to drive the positioning part 1 and the movable part 2 to move up and down along the guide post, or the holding part 6 is adsorbed at the lower end of the upper mold, and the positioning part 1 and the movable part 2 are driven to move up and down along the guide post by the upper mold; so that the wear of the whole guide post can be fed back by the inductive assembly 5;

[0070] S4: after detection, only the holding part 6 needs to be pulled, so that the guide post extrudes the movable part 2, and the movable part 2 and the positioning part 1 are away from the guide post, the detection device is removed, and the detection of the guide post in the electronic mold is completed.

[0071] The specific working process is as follows:

[0072] When the worker needs to overcome the limitations of the small space to detect the guide pillar, he only needs to hold the holding part 6, move the positioning part 1, the movable part 2, the sensing assembly 5 and other components through the holding part 6, so that these components are brought close to the guide pillar to be detected, and then the included angle formed by the two expansion parts 7, i.e. the other end of the two expansion parts 7, is close to the guide pillar to be detected. Subsequently, an external force is applied to the holding part 6, which is pushed by the holding part 6 and then transmitted to the two expansion parts 7 through the force transmission of the positioning part 1 and the movable part 2. Under the action of the external force applied to the guide pillar by the expansion part 7, the guide pillar feeds back a reaction force to the two expansion parts 7. One of the expansion parts 7 is fixed to the positioning part 1, so the other expansion part 7 will move away from the one under the action of the reaction force. After the two expansion parts 7 move away, the guide pillar will move relatively to the space between the two expansion parts 7. By setting the expansion part 7 in an extendable state, the expansion part 7 is prevented from being affected by obstacles around the guide pillar to be detected. This way will make the expansion plate 71 in the expansion part 7 first play a guiding expansion role, and then when an obstacle is encountered, the expansion plate 71 will slide along the sliding groove against the elastic force of the No. 2 spring 72, so that the adjacent expansion plates 71 move close to each other, leaving movement space for the movement of the positioning part 1 and the movable part 2. Through the guiding effect of the guide film 73 on the guide pillar, the guide pillar will not bring the expansion plates 71 to shrink. The transition part of the expansion part 7 and the positioning part 1 and the transition part of the expansion part 7 and the movable part 2 are provided with rollers 22, so that the original sliding friction becomes rolling friction. Through the rolling of the rollers 22, the outer edge of the rollers 22 absorbs the lubricant from the containing groove 21 and then applies it to the guide pillar.

[0073] With the continuous application of external force to the holding part 6, the guide pillar is pressed to move between the positioning part 1 and the movable part 2, which are closed under the action of the torsion spring 4. Since the sensing assembly 5 is arranged on the inner side of the positioning part 1 and the movable part 2, the sensing assembly 5 records the current pressure value and transmits it to the controller in real time. The worker drives the holding part 6 to move the positioning part 1 and the movable part 2 up and down along the guide pillar, so that the wear of the entire guide pillar can be fed back by the sensing assembly 5. During the movement of the holding part 6, the positioning part 1 and the movable part 2 along the axis of the guide pillar, the flexible brush 8 will clean the impurities on the outer wall of the guide pillar in advance. The worker can also adsorb the holding part 6 to the lower end of the upper die, so that the holding part 6, the positioning part 1 and the movable part 2 can be moved by the downward movement of the upper die, so that the worker does not need to drive the positioning part 1 and the movable part 2 to move up and down.

[0074] If the surface of the guide post is concave, the sensing rod in the sensing assembly 5 will move away from the pressure sensor, spring No. 1 will extend, and the pressure detected by the pressure sensor will be lower than the original value. If the surface of the guide post is convex, the sensing rod in the sensing assembly 5 will move closer to the pressure sensor, spring No. 1 will compress, and the pressure detected by the pressure sensor will be higher than the original value. The guide post needs to be recorded by the sensing assembly 5 in its initial state. The relationship between pressure and distance can be obtained according to the formula F = K * X. If the difference between the current detected pressure value and the previous pressure value is greater than the set range, corresponding measures need to be taken, such as applying lubricant or replacing spare parts. By configuring the positioning portion 1 and the movable portion 2 as an arc-shaped sheet, the positioning portion 1 and the movable portion 2 will not affect the detection of guide posts of other specifications due to obstructions at both ends. Therefore, the arc-shaped sheet expands the detection range of the detection device. After the upper and lower outer walls of the guide post are detected, the gripping portion 6 is rotated around the guide post, allowing the sensing assembly 5 to detect another part of the guide post, thereby achieving all-round detection.

[0075] After the inspection, it is only necessary to pull the holding part 6 so that the guide column squeezes the movable part 2 open, so that the movable part 2 and the positioning part 1 are away from the guide column, and the removal of the detection device is completed, thereby completing the inspection of the guide column in the electronic mold; the sensing components 5 are staggered with each other to prevent one of them from being damaged and causing detection failure. In this way, even if one of them is damaged, the other sensing components 5 can still perform sensing.

[0076] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0077] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for an electronic mold with in-mold decoration printing, comprising: Positioning portion (1); the positioning portion (1) is sheet-shaped; Activities Department (2); The movable portion (2) and the positioning portion (1) have the same shape and are symmetrically arranged; A pin shaft (3); the pin shaft (3) is at one end of the positioning portion (1) and the movable portion (2) and is rotatably connected to each other; Torsion spring (4); the torsion spring (4) is sleeved on the pin shaft (3); the positioning portion (1) and the movable portion (2) are hinged via the torsion spring (4); A sensing component (5); the sensing component (5) is arranged on the inner side of the positioning portion (1) and the movable portion (2), and is used to sense the pressure on the inner side of the positioning portion (1) and the movable portion (2); A controller, the controller being used to control the automatic operation of the sensing component (5); Characterized in that, the detection device for the electronic mold with in-mold decoration printing further comprises: A gripping portion (6); the gripping portion (6) is rod-shaped and fixedly connected to one end of the positioning portion (1); expansion portion (7); the expansion portion (7) is sheet-shaped, and one end is fixedly connected to the other end of the positioning portion (1) and the other end of the movable portion (2); the distance between the other ends of the two expansion portions (7) is greater than the distance between the one ends; The expansion portion (7) is composed of a plurality of expansion plates (71) that are slidably connected to each other; and adjacent expansion plates (71) are connected via a No. 2 spring (72).

2. The detection device for an electronic mold with in-mold decoration printing according to claim 1, characterized in that: The positioning portion (1) and the movable portion (2) are both in the shape of arcuate sheets and are both bent inwards.

3. The detection device for an electronic mold with in-mold decoration printing according to claim 1, characterized in that: Two adjacent expansion plates (71) are connected via a guide membrane (73); the guide membrane (73) is made of elastic material.

4. The detection device for an electronic mold with in-mold decoration printing according to claim 1, characterized in that: Flexible brushes (8) are fixedly connected to both sides of the positioning portion (1) and the movable portion (2).

5. The detection device for an electronic mold with in-mold decoration printing according to claim 1, characterized in that: The holding portion (6) is made of a magnet; the thickness of the holding portion (6) is not less than the sum of the thicknesses of the flexible brush (8) and the movable portion (2).

6. The detection device for an electronic mold with in-mold decoration printing according to claim 1, characterized in that: The portions of the positioning portion (1) and the other end of the movable portion (2) close to each other are provided with an accommodating groove (21); a roller (22) is rotatably connected between the two groove walls of the accommodating groove (21).

7. The detection device for an electronic mold with in-mold decoration printing according to claim 6, characterized in that: The outer edge of the roller (22) is made of water-absorbing material; and the accommodating groove (21) is filled with lubricant.

8. A method for detecting an electronic mold with in-mold decoration printing, the method being applicable to the detection device for an electronic mold with in-mold decoration printing according to any one of claims 1 to 7, characterized in that: The steps of this detection method are as follows: S1: First, clean the entire detection device, then hold the gripping portion (6) by hand, and use the gripping portion (6) to drive the positioning portion (1), the movable portion (2), the sensing component (5) and other components to move, so that these components are driven to approach the guide column to be detected, and then the angle formed by the two expansion portions (7), that is, the other ends of the two expansion portions (7) are brought close to the guide column to be detected; S2: an external force is applied to the gripping portion (6). Under the push of the gripping portion (6), the two expansion portions (7) are moved away from each other, and the guide post moves relatively to between the two expansion portions (7). The roller (22) rolls under the friction of the guide post, and the lubricant in the receiving groove (21) is applied to the outer wall of the guide post. As the external force is continued to be applied to the gripping portion (6), the guide post is squeezed and moved to between the positioning portion (1) and the movable portion (2); S3: Under the action of the torsion spring (4), the positioning part (1) and the movable part (2) are closed, the sensing component (5) records the current pressure value and transmits it to the controller in real time, and the staff then drives the gripping part (6) to drive the positioning part (1) and the movable part (2) to move up and down along the guide column, or adsorbs the gripping part (6) on the lower end of the upper mold, and drives the positioning part (1) and the movable part (2) to move up and down along the guide column through the movement of the upper mold; thereby, the wear condition of the entire guide column can be fed back through the sensing component (5); S4: After the inspection is completed, it is only necessary to pull the holding portion (6) so that the guide post squeezes the movable portion (2) apart, so that the movable portion (2) and the positioning portion (1) are away from the guide post, and the removal of the inspection device is completed, thereby completing the inspection of the guide post in the electronic mold.

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