Positioning structure for IMR forming process

Abstract

The invention relates to the technical field of IMR forming processes, in particular to a positioning structure of an IMR forming process, comprising: a sensing member for positioning the position of an IMR film; the positioning rod is arranged between the waste collecting roller and the induction piece, the outer end face of the positioning rod is sleeved with two sets of positioning check blocks, the positioning check blocks are arranged in the axial direction of the positioning rod, an IMR film firstly penetrates through the induction piece, then penetrates through the position between the two sets of positioning check blocks and is connected with the waste collecting roller, and the positioning check blocks are used for limiting the position of the IMR film. The outer end face of the positioning rod is sleeved with the two sets of positioning check blocks, when the IMR film is produced and replaced, the IMR film is directly adjusted to the position between the two positioning check blocks, by means of the structure, the IMR film is replaced conveniently and rapidly, the film replacing operation efficiency is improved, and the situation that after waste of the harvested IMR film is redebugged, the pattern position of a plastic part deviates, and the yield of the plastic part is affected is avoided.

Description

[Technical Field]

[0001] This invention relates to the field of IMR molding technology, and in particular to a positioning structure for IMR molding. [Background Technology]

[0002] In-mold transfer (IMR) is a process in which a pattern is printed on a thin film, and the film is then bonded to the mold cavity by a film feeder for injection molding. After injection molding, the ink layer with the pattern separates from the film, leaving the ink layer on the plastic part, thus obtaining a plastic part with a decorative pattern on the surface.

[0003] For IMR injection molded plastic parts, the pattern on the film needs to be adjusted during molding. However, there are many patterns and colors for the plastic parts, requiring frequent film changes for production. After cleaning up the waste film during production, the pattern position of the IMR film needs to be readjusted. Moreover, the pattern positioning accuracy is required to be high. Each time the pattern position is readjusted, it will cause waste of IMR film, resulting in poor pattern misalignment of the plastic parts, affecting the machine's capacity, and wasting time due to waiting.

[0004] In view of this, it is necessary to provide a positioning structure for the IMR molding process to solve the above problems. [Summary of the Invention]

[0005] The technical problem this invention aims to solve is that during IMR injection molding of plastic parts, the position of the FILM film pattern needs to be adjusted. However, the patterns and colors of the plastic parts are numerous, requiring frequent film changes during production. Furthermore, after cleaning up waste film during production, the pattern position of the IMR film needs to be readjusted, and the pattern positioning accuracy requirements are high. Each readjustment results in waste of IMR film, causing defects such as pattern misalignment in the plastic parts, affecting machine capacity, and wasting time due to waiting. Therefore, this invention provides a positioning structure for the IMR molding process to solve the above problems.

[0006] The solution to the technical problem of this invention is: a positioning structure for an IMR molding process, comprising:

[0007] The sensor is used to locate the position of the IMR film;

[0008] The positioning rod is positioned between the waste collection roller and the sensing element. Two sets of positioning blocks are sleeved on the outer end face of the positioning rod. The positioning blocks are arranged along the axial direction of the positioning rod. The IMR film first passes through the sensing element, then passes between the two sets of positioning blocks, and connects with the waste collection roller. The positioning blocks are used to limit the position of the IMR film. The positioning blocks are provided with at least one fixing hole for cooperating with the fixing element to lock the positioning block onto the positioning rod.

[0009] Waste collection rollers are used to collect waste from IMR films.

[0010] Preferably, the sensing element includes, but is not limited to, an optical fiber sensor.

[0011] Preferably, the fixing hole includes, but is not limited to, a threaded hole, and the fastener includes, but is not limited to, a hexagonal screw.

[0012] The beneficial effects of this invention are that it provides a positioning structure for the IMR molding process, which employs two sets of positioning blocks sleeved on the outer end face of the positioning rod. When changing the IMR film, the IMR film can be directly adjusted to the middle of the two positioning blocks. This structure makes it convenient and quick to change the IMR film, improves the efficiency of the film changing operation, and avoids the problem of misalignment of the pattern position on the plastic part after the waste material from the IMR film is harvested and readjusted, which would affect the yield of the plastic part. [Attached Image Description]

[0013] Figure 1 This is a schematic diagram of the positioning structure of an IMR molding process according to the present invention.

[0014] Figure 2 This is a schematic diagram of the positioning rod and positioning block in this invention.

Detailed Implementation Methods

[0015] To further illustrate the technical means and effects of the present invention, the following detailed description is provided in conjunction with the embodiments of the present invention and their accompanying drawings.

[0016] This invention provides a positioning structure for an IMR molding process, comprising:

[0017] The sensor 110 is used to position the IMR film 140.

[0018] A positioning rod 120 is disposed between the waste collection roller 130 and the sensing element 110. Two sets of positioning blocks 121 are sleeved on the outer end face of the positioning rod 120. The positioning blocks 121 are arranged along the axial direction of the positioning rod 120. The IMR film 140 first passes through the sensing element 110, then passes between the two sets of positioning blocks 121, and connects with the waste collection roller 130. The positioning blocks 121 are used to limit the position of the IMR film 140. The positioning blocks 121 are provided with at least one fixing hole 122. In this embodiment, there are four fixing holes 122 on the positioning blocks 121, which are used to cooperate with the fixing element 123 to stably lock the positioning blocks 121 onto the positioning rod 120.

[0019] Waste collection roller 130 is used to collect waste from IMR film 140.

[0020] The sensing element 110 includes, but is not limited to, fiber optic sensing.

[0021] The fixing hole 122 includes, but is not limited to, a threaded hole, and the fastener 123 includes, but is not limited to, a hexagonal screw.

[0022] The working process of this invention is as follows: After the film feeding machine is turned on, the IMR film 140 is first placed around the positioning rod 120 between the two positioning blocks 121, and then fixed around the waste collection roller 130. After the position of the IMR film 140 is accurately adjusted into place by the sensing element 110, the two positioning blocks 121 are moved to be close to both sides of the IMR film 140. The fixing element 123 is used to cooperate with the fixing hole 122 of the positioning block 121 to lock the positioning block 121 onto the positioning rod 120. When replacing the IMR film 140 in the future, the IMR film 140 can be directly adjusted to be between the two positioning blocks 121.

[0023] The beneficial effects of this invention are that, through a positioning structure for the IMR molding process, two sets of positioning blocks 121 are sleeved on the outer end face of the positioning rod 120. When changing the IMR film 140, the IMR film 140 can be directly adjusted to the middle of the two positioning blocks 121. This structure makes the replacement of the IMR film 140 convenient and quick, improves the efficiency of film replacement, and avoids the problem of misalignment of the pattern position on the plastic part after the waste material of the IMR film 140 is harvested and readjusted, which would affect the yield of the plastic part.

[0024] It should be noted that the present invention is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made by those skilled in the art to the above embodiments based on the technical solutions of the present invention shall fall within the protection scope of the present invention.

Claims

1. A positioning structure for an IMR molding process, comprising a waste collection roller, the waste collection roller being used to collect waste from the IMR film, characterized in that, include: The sensing element is used to locate the position of the IMR film; A positioning rod is disposed between the waste collection roller and the sensing element. Two sets of positioning blocks are sleeved on the outer end face of the positioning rod. The positioning blocks are arranged along the axial direction of the positioning rod. The IMR film first passes through the sensing element, then passes between the two sets of positioning blocks, and connects with the waste collection roller. The positioning blocks are used to define the position of the IMR film.

2. The positioning structure for an IMR molding process as described in claim 1, characterized in that: The sensing element is an optical fiber sensor.

3. The positioning structure for an IMR molding process as described in claim 1, characterized in that: The positioning block is provided with at least one fixing hole for cooperating with a fixing component to lock the positioning block onto the positioning rod.

4. The positioning structure for an IMR molding process as described in claim 3, characterized in that: The fixing hole is a threaded hole, and the fixing component is a hexagonal screw.

Images