Component removal device
The parts removal device addresses the inefficiencies of traditional methods by using air-operated components to securely extract date stamps and inserts, ensuring safe and rapid replacement without tools.
Patent Information
- Application Number
- JP2025076157
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-05-03
- Filing Date
- 2025-05-01
- Publication Date
- 2025-11-14
AI Technical Summary
Existing methods for replacing parts in molds, such as date stamps and inserts, are time-consuming and risky, leading to productivity loss and potential damage due to accidental dropping.
A parts removal device using a housing with a movable sleeve and holding member, operated by air injection, allows safe and tool-free extraction of components.
Facilitates quick and safe removal of parts without tools, preventing accidental drops and enhancing productivity by ensuring components remain attached during extraction.
Smart Images

Figure 2025169927000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a parts extraction device for extracting molded items such as date stamps and replaceable inserts. [Background technology]
[0002] In molds, some parts need to be replaced periodically. These parts are housed in housings, and to remove them from the housings, skilled workers usually use mechanical tools. For example, one part that needs to be replaced periodically is a date stamp that indicates the manufacturing date of the product made in that mold, and another example is an insert that forms a logo or brand name on the plastic product made in that mold. Replacing these parts requires significant time, which negatively impacts productivity, and can also cause parts to fall unexpectedly, resulting in damage and additional time spent on repairs, which can be inconvenient. Summary of the Invention
[0003] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a parts removal device that allows parts to be removed easily, quickly, and safely. According to the parts picking device of the present invention, the above problems are solved and the following additional effects are obtained. The component extracting device according to the invention is set out in claim 1, with further optional features set out in the dependent claims. Specifically, the part extraction device comprises: a housing for accommodating components; at least one holding member, the holding member being movable between a holding position where the holding member is pressed against the component to hold the component, and a removal position where the holding member is not pressed against the component; a sleeve movable between a retaining position in which the at least one retaining member is located within at least one recess of the sleeve for receiving the at least one retaining member and a removal position in which the at least one retaining member is located outside the at least one recess of the sleeve; The housing has an air inlet, and the sleeve is moved by air injected through the inlet. Therefore, the component is moved by injecting air, without the use of tools. Furthermore, when air is injected, the component remains in the extraction position but is not completely detached from the housing, preventing accidental dropping and allowing the user to manually remove the component without having to remove other components. Preferably, the component removal device of the present invention may further include a gripping member that houses the at least one holding member, and a spring that is arranged between the sleeve and the gripping member and biases the sleeve toward the holding position. According to a preferred embodiment, the at least one holding member is a sphere, and the sleeve has a shaft therein, the shaft being movable within the sleeve. Furthermore, the housing may have a thread formed on its outer circumferential surface for adjusting the mounting position inside the mold. [Brief explanation of the drawings]
[0004] For a better understanding of the above description, the drawings are appended, which show, by way of schematic and non-limiting example, specific embodiments. [Figure 1] FIG. 2 is a longitudinal cross-sectional view of the component extractor in the holding position; [Figure 2] FIG. 2 is a cross-sectional view showing details of the component removal device of FIG. 1. [Figure 3] FIG. 2 is a longitudinal cross-sectional view of the component extraction device in the extraction position. [Figure 4] FIG. 4 is a cross-sectional view showing details of the component removal device of FIG. 3. DETAILED DESCRIPTION OF THE INVENTION
[0005] As shown in the figure, the component extracting device of the present invention includes a housing 1 for accommodating a component 2. The housing 1 preferably has an air intake 6 provided at one end of the housing 1. The part (2) is a molding part such as a date stamp or an insert, and has a shaft (10) housed in the housing (1) as a part of the part (2). The component extracting device of the present invention also includes a sleeve (4) disposed inside the housing (1) and having one or more recesses formed therein, a gripping member (7) having through holes (11) or slots for accommodating one or more holding members (3), and a spring (8) disposed between the gripping member (7) and the sleeve (4). Furthermore, the sleeve (4) of this embodiment has a shaft portion (9) disposed therein, and the shaft portion (9) is movable within the sleeve (4). The holding member (3) of this embodiment is a sphere, and its operation is as follows. Both the sleeve (4) and the retaining member (3) are movable between a retaining position and an extraction position. The holding position is shown in Figures 1 and 2. In this state, the holding element (3) is pressed by the sleeve (4) against the part (2), more specifically against the shaft (10) of the part (2), since the holding element (3) is outside the recess (5) and in contact with the inner wall of the sleeve (4). When moving to the removal position, compressed air is injected through the air inlet 6. The air pressure moves the sleeve 4 in the direction of the arrow in Figure 3 against the biasing force of the spring 8. When the sleeve (4) moves and the holding member (3) comes in front of the recess (5), the holding member (3) enters the recess (5) and no longer presses against the shaft (10) of the part (2). The shank (9) moves inside the sleeve (4) to slightly press against the shaft (10) of the part (2), which exposes the part (2) from the housing and allows it to be manually removed without the risk of it accidentally falling out. When a new part (2) and its associated shaft (10) are installed, the sleeve (4) returns to its holding position under the action of the spring (8), and the holding member (3) also returns to its original holding position. Furthermore, the housing 1 has a thread formed on its outer surface for adjusting its position when it is attached to a mold, for example. Therefore, by inserting a tool such as an Allen key into the housing 1, it is possible to adjust the attachment position of the housing 1 within the mold. Although specific embodiments of the present invention have been described, it will be obvious to those skilled in the art that the above-mentioned parts extracting device can be variously modified and altered without departing from the scope defined in the appended claims, and that all detailed structures can be replaced with technically equivalents.
Claims
1. a housing (1) that houses a component (2); the device includes at least one holding member (3), which is movable between a holding position where it presses against the component (2) to hold the component (2) and a removal position where it is not pressed against the component (2); a sleeve (4) movable between a holding position in which the at least one holding member (3) is located inside at least one recess (5) of the sleeve (4) for receiving the at least one holding member (3) and a removal position in which the at least one holding member (3) is located outside the at least one recess (5) of the sleeve (4); The housing (1) has an air intake (6), and the sleeve (4) is moved by air injected through the air intake (6).
2. 2. The component extracting device according to claim 1, further comprising a gripping member (7) for accommodating said at least one holding member (3).
3. 3. The component extracting device according to claim 2, further comprising a spring (8) disposed between the sleeve (4) and the gripping member (7) for biasing the sleeve (4) towards the holding position.
4. 2. The component extracting device according to claim 1, wherein said at least one holding member (3) is a sphere.
5. 10. The component extracting device according to claim 9, wherein the sleeve (4) has a shaft (9) therein, the shaft (9) being movable within the sleeve (4).
6. 10. A component extracting device according to claim 9, wherein the housing (1) has a threaded groove formed on its outer circumferential surface.