Detection mechanism for preventing mold from being missed

Abstract

The utility model relates to a detection mechanism for preventing a mould from being missed, which belongs to the technical field of moulds and comprises a mould base and a fixing frame, a neglected loading detection mechanism is arranged inside the mould base, a plurality of inserts are movably connected with the mould base, and an electric push rod is fixedly connected inside the fixing frame. According to the detection mechanism for preventing missing placement of the mold, the number and the positions of the positioning cylinders can be adjusted as required, so that the positioning cylinders correspond to the required mounting positions of inserts, and the detection mechanism is suitable for different molds; when the movable block moves downwards, the installed insert can make contact with the abutting block, the pressing block on the telescopic rod makes contact with the proximity switch, the proximity switch is turned on, and the proximity switch at the position where the insert is not installed is not turned on, so that leakage prevention detection of insert installation is achieved, and whether the insert is missed to be placed or not is judged conveniently through different indicator lamps; the detection is convenient; and the production of bad products is avoided, the controllability of the products is improved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a detection mechanism for preventing molds from leaking. Background Art

[0002] A mold is a tool that uses a specific shape to form a blank (solid or liquid) into a product with a certain shape and size under the action of an external force. Molds are widely used in forging, stamping, powder metallurgy pressing, pressure casting, and compression and injection molding of engineering plastics, rubber, ceramics and other products. In the production process of foamed plastic products, a mold with a cavity is required. In order to pre-embed inserts on the foamed plastic products, the inserts need to be placed on the mold before closing the mold, and then the raw materials are introduced into the cavity, and finally the mold is closed for foaming. If the insert is missing from the plastic product, the mold closing and injection molding will cause glue overflow, and the ejector pin will break during ejection, resulting in the mold being unable to produce normally.

[0003] A patent document with announcement number CN108839297A proposes a device for detecting leak-proofing of mold inserts, including a proximity air circuit switch, a first air cylinder, an extension rod, a first spherical insert and a second spherical insert. A stepped hole corresponding to the position of the insert is provided in the mold, and the first spherical insert is arranged at the inner end of the stepped hole...; this patent triggers all proximity air circuit switches and connects the air supply line of the second air cylinder only after all the inserts are installed. The operator can then use the manual valve or solenoid valve on the air supply line to extend and retract the second air cylinder and open and close the mold. The device has high safety, ensures the number and position relationship of the inserts on the product, and improves the qualified rate of the product. In addition, there are no live instruments on the mold, which has no adverse effects on the foaming of the product and has high working stability.

[0004] However, although the above patent can realize the detection of leaked inserts, the installation position of the detection structure is fixed, and it is not convenient to adjust the position of the detection structure according to the installation position of the insert during use. It is impossible to realize leak-proof detection of different molds, and has certain limitations during use. In view of this, the present application proposes a detection mechanism for preventing mold leaks. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a detection mechanism for preventing mold leakage, which has the function of adjusting the number and position of positioning cylinders as needed to make it suitable for different molds, and can also judge whether an insert is missed through different indicator lights, making detection convenient; it helps to avoid the production of defective products, increase the controllability of products, and improve production efficiency, etc. It solves the problem that the mold leakage prevention structure in the prior art is not convenient to adjust the position of the detection structure according to the installation position of the insert, cannot realize leakage prevention detection of different molds, and has certain limitations when used.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detection mechanism for preventing mold leakage, comprising a mold base and a fixing frame, wherein a leakage detection mechanism is arranged inside the mold base;

[0007] The missing assembly detection mechanism comprises an insert detachably connected inside the mold base, a plurality of inserts are movably connected inside the insert, an electric push rod is fixedly connected inside the fixing frame, a movable block is fixedly connected to the output end of the electric push rod, a plurality of proximity switches are fixedly connected inside the movable block, and a plurality of positioning cylinders are slidably connected inside the movable block;

[0008] A limiting assembly is provided on the outer side of the positioning cylinder, a telescopic rod is slidably connected to the inside of the positioning cylinder, a stop block is fixedly connected to the bottom of the telescopic rod, a compression spring fixedly connected to the positioning cylinder and the stop block is sleeved on the outer side of the telescopic rod, a pressure block is fixedly connected to the top of the telescopic rod, and two indicator lights are fixedly connected to the right side of the movable block.

[0009] Furthermore, both left and right sides of the positioning cylinder are fixedly connected with limiting blocks, and the movable block is provided with limiting sliding grooves slidably matched with the limiting blocks and the positioning cylinder.

[0010] Furthermore, the limiting assembly includes a fixing plate fixedly connected to the left and right sides of the positioning cylinder, a pull rod is slidably connected inside the fixing plate, a positioning block is fixedly connected to the top of the pull rod, and an extrusion spring fixedly connected to the fixing plate and the positioning block is sleeved on the outer side of the pull rod.

[0011] Furthermore, the bottom of the movable block is provided with positioning grooves located on the left and right sides of the limiting sliding groove, and the proximity switches and the positioning grooves are evenly arranged in the movable block.

[0012] Furthermore, the stop block is a T-shaped structure, and a rubber pad is fixedly connected to the bottom of the stop block.

[0013] Furthermore, a wiring board electrically connected to the proximity switch and the indicator light is fixedly connected to the top of the movable block, and a connecting wire is detachably connected to the interior of the wiring board.

[0014] Furthermore, an electromagnetic relay for connecting the indicator light and the wiring board is arranged inside the movable block, and the electromagnetic relay consists of a main contact, a first auxiliary contact and a second auxiliary contact.

[0015] Furthermore, the indicator lights are divided into red and green, so that the color of the indicator lights can be used to reflect the leakage detection result of the device.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] The number and position of the positioning tubes of the detection mechanism for preventing mold leakage can be adjusted as needed, so that the positioning tubes correspond to the required installation positions of the inserts, so that the device is suitable for different molds; when the movable block moves downward, the installed insert can contact the stop block, so that the pressure block on the telescopic rod contacts the proximity switch, so that the proximity switch is turned on, while the proximity switch at the position where the insert is not installed is not turned on, thereby realizing the detection of preventing the installation of the insert from leakage;

[0018] If the proximity switch is not connected, the red indicator light will light up, otherwise the green indicator light will light up; this makes it easy to judge whether the insert is missing, making detection convenient; it helps to avoid the production of defective products, increase product controllability, improve production efficiency, and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the movable block of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the positioning cylinder of the utility model;

[0022] Figure 4 The utility model is a circuit diagram of the structure.

[0023] In the figure: 1. mold base; 2. insert; 3. insert; 4. fixed frame; 5. electric push rod; 6. movable block; 601. limit slide groove; 602. positioning groove; 603. indicator light; 7. proximity switch; 8. positioning cylinder; 9. telescopic rod; 10. stop block; 1001. rubber pad; 11. compression spring; 12. pressure block; 13. limit block; 14. fixed plate; 15. pull rod; 16. positioning block; 17. extrusion spring; 18. wiring board; 19. electromagnetic relay; 1901. main contact; 1902. first auxiliary contact; 1903. second auxiliary contact. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4In this embodiment, a detection mechanism for preventing mold leakage includes a mold base 1 and a fixing frame 4. A leakage detection mechanism is arranged inside the mold base 1.

[0026] Embodiment 1: The missing assembly detection mechanism includes an insert 2 that is detachably connected to the inside of a mold base 1, and a plurality of inserts 3 are movably connected inside the insert 2, so that the insert 3 can be positioned and placed conveniently by using the insert 2. An electric push rod 5 is fixedly connected to the inside of a fixed frame 4, and a movable block 6 is fixedly connected to the output end of the electric push rod 5, so that the position of the movable block 6 can be conveniently adjusted by using the electric push rod 5.

[0027] Among them, a plurality of proximity switches 7 are fixedly connected inside the movable block 6, a plurality of positioning cylinders 8 are slidably connected inside the movable block 6, and the left and right sides of the positioning cylinder 8 are fixedly connected with limiting blocks 13. A limiting groove 601 that is slidably matched with the limiting block 13 and the positioning cylinder 8 is opened inside the movable block 6, so that the positioning cylinder 8 can move in the limiting groove 601 by using the limiting block 13.

[0028] In this embodiment, the interior of the positioning tube 8 is slidably connected to a telescopic rod 9, and a stop block 10 is fixedly connected to the bottom of the telescopic rod 9. The stop block 10 is a T-shaped structure, and a rubber pad 1001 is fixedly connected to the bottom of the stop block 10. The rubber pad 1001 is conveniently arranged to avoid rigid collision between the stop block 10 and the insert 3 and cause damage. The outer side of the telescopic rod 9 is sleeved with a compression spring 11 fixedly connected to the positioning tube 8 and the stop block 10, and the top of the telescopic rod 9 is fixedly connected to a pressure block 12, so that the pressure block 12 can be used to press the proximity switch 7.

[0029] Among them, two indicator lights 603 are fixedly connected to the right side of the movable block 6. The indicator lights 603 are divided into red and green, so that the color of the indicator lights 603 can be used to reflect the leakage detection result of the device. The two indicator lights 603 are set in a parallel circuit.

[0030] In this embodiment, a wiring board 18 electrically connected to the proximity switch 7 and the indicator light 603 is fixedly connected to the top of the movable block 6. A connecting wire is detachably connected to the interior of the wiring board 18. The wiring board 18 is provided with a terminal connected to each proximity switch 7, so that the proximity switches 7 that play a monitoring role can be conveniently connected in series by installing connecting wires on the terminal posts.

[0031] Among them, an electromagnetic relay 19 for connecting the indicator light 603 and the wiring board 18 is arranged inside the movable block 6. The electromagnetic relay 19 is composed of a main contact 1901, a first auxiliary contact 1902 and a second auxiliary contact 1903, so that the composition of the first auxiliary contact 1902 and the second auxiliary contact 1903 can be changed with the conduction of the main contact 1901.

[0032] Embodiment 2: A limiting assembly is provided on the outer side of the positioning cylinder 8, and the limiting assembly includes a fixed plate 14 fixedly connected to the left and right sides of the positioning cylinder 8, a pull rod 15 is slidably connected inside the fixed plate 14, a positioning block 16 is fixedly connected to the top of the pull rod 15, and an extrusion spring 17 fixedly connected to the fixed plate 14 and the positioning block 16 is sleeved on the outer side of the pull rod 15, so that the positioning block 16 can be clamped with the movable block 6 under the action of the extrusion spring 17, thereby limiting the movement of the positioning cylinder 8.

[0033] Among them, the bottom of the movable block 6 is provided with positioning grooves 602 located on the left and right sides of the limiting slide groove 601, so that the positioning block 16 can be extended into the movable block 6 using the positioning grooves 602, and the proximity switch 7 and the positioning grooves 602 are evenly arranged in the movable block 6.

[0034] The beneficial effects of the above embodiments are:

[0035] The detection mechanism for preventing leakage of molds can adjust the number and position of the positioning cylinders 8 as needed, so that the positioning cylinders 8 correspond to the required installation positions of the inserts 3, so that the device is suitable for different molds; when the movable block 6 moves downward, the installed insert 3 can contact the stop block 10, so that the pressing block 12 on the telescopic rod 9 contacts the proximity switch 7, so that the proximity switch 7 is turned on, while the proximity switch 7 where the insert 3 is not installed is not turned on, thereby realizing the leakage prevention detection of the installation of the insert 3;

[0036] If the proximity switch 7 is not connected, the red indicator light 603 is on, otherwise the green indicator light 603 is on; this makes it easy to judge whether the insert 3 is missing, making detection convenient; it helps to avoid the production of defective products, increase the controllability of products, improve production efficiency, and reduce production costs.

[0037] The working principle of the above embodiment is:

[0038] When the detection mechanism for preventing mold leakage is used, firstly, the position of the positioning cylinder 8 in the movable block 6 needs to be adjusted according to the position of the insert 3 required to be installed on the insert block 2, so that the position of the positioning cylinder 8 in the movable block 6 corresponds to the position of the insert 3 required to be installed on the insert block 2, so that the device is suitable for different molds, and then the insert block 2 can be used to realize the positioning and placement of the insert 3;

[0039] When detection is required, the electric push rod 5 can be operated to adjust the position of the movable block 6. When the stop block 10 in the positioning cylinder 8 moves down to a certain position, it will contact the insert 3. The pressure block 12 set in the positioning cylinder 8 at the position where the insert 3 is installed will move closer to the proximity switch 7. The proximity switch 7 here can be turned on in the circuit (the proximity switch 7 corresponding to the installation position of the insert 3 can be connected in series using the wire set in the wiring board 18). When all the proximity switches 7 are turned on, the branch of the proximity switch 7 in the circuit will be turned on, so that the green indicator light 603 is lit and the red indicator light 603 is turned off. On the contrary, if the proximity switch 7 is not turned on, the red indicator light 603 is lit and the green indicator light 603 is turned off, so that it is convenient to judge whether the insert 3 is missed, making the detection convenient; it helps to avoid the production of defective products, increase the controllability of products, improve production efficiency and reduce production costs.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection mechanism for preventing mold leakage, comprising a mold base (1) and a fixing frame (4), characterized in that: A missing assembly detection mechanism is provided inside the mold base (1); The missing assembly detection mechanism comprises an insert (2) detachably connected to the mold base (1), a plurality of inserts (3) being movably connected to the insert (2), an electric push rod (5) being fixedly connected to the interior of the fixed frame (4), a movable block (6) being fixedly connected to the output end of the electric push rod (5), a plurality of proximity switches (7) being fixedly connected to the interior of the movable block (6), and a plurality of positioning cylinders (8) being slidably connected to the interior of the movable block (6); A limiting assembly is arranged on the outer side of the positioning cylinder (8); a telescopic rod (9) is slidably connected to the interior of the positioning cylinder (8); a stop block (10) is fixedly connected to the bottom of the telescopic rod (9); a compression spring (11) fixedly connected to the positioning cylinder (8) and the stop block (10) is sleeved on the outer side of the telescopic rod (9); a pressure block (12) is fixedly connected to the top of the telescopic rod (9); and two indicator lights (603) are fixedly connected to the right side of the movable block (6).

2. A detection mechanism for preventing mold leakage according to claim 1, characterized in that: The left and right sides of the positioning cylinder (8) are fixedly connected to the limiting blocks (13), and the movable block (6) is provided with a limiting sliding groove (601) that is slidably matched with the limiting blocks (13) and the positioning cylinder (8).

3. A detection mechanism for preventing mold leakage according to claim 2, characterized in that: The limiting assembly comprises a fixing plate (14) fixedly connected to the left and right sides of the positioning cylinder (8), a pull rod (15) is slidably connected inside the fixing plate (14), a positioning block (16) is fixedly connected to the top of the pull rod (15), and an extrusion spring (17) fixedly connected to the fixing plate (14) and the positioning block (16) is sleeved on the outer side of the pull rod (15).

4. A detection mechanism for preventing mold leakage according to claim 3, characterized in that: The bottom of the movable block (6) is provided with positioning grooves (602) located on the left and right sides of the limiting sliding groove (601), and the proximity switch (7) and the positioning grooves (602) are evenly arranged in the movable block (6).

5. The detection mechanism for preventing mold leakage according to claim 1, characterized in that: The stop block (10) is a T-shaped structure, and a rubber pad (1001) is fixedly connected to the bottom of the stop block (10).

6. The detection mechanism for preventing mold leakage according to claim 1, characterized in that: A wiring board (18) electrically connected to the proximity switch (7) and the indicator light (603) is fixedly connected to the top of the movable block (6), and a connecting wire is detachably connected inside the wiring board (18).

7. A detection mechanism for preventing mold leakage according to claim 6, characterized in that: An electromagnetic relay (19) for connecting the indicator light (603) and the wiring board (18) is arranged inside the movable block (6), and the electromagnetic relay (19) is composed of a main contact (1901), a first auxiliary contact (1902) and a second auxiliary contact (1903).

8. The detection mechanism for preventing mold leakage according to claim 1, characterized in that: The indicator light (603) is divided into red and green colors, so that the color of the indicator light (603) can be used to reflect the leakage detection result of the device.

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