Injection molding device applied to dust collector handle

Abstract

The utility model discloses an injection molding device applied to a dust collector handle, which comprises a male mold plate, a female mold plate and a female mold plate, a female mold plate; the lower positioning block is fixedly installed in an installation groove in the side edge of the male mold plate, a first air pipe connector is arranged on the bottom face of the installation groove and extends into an inner cavity of the lower positioning block, a second air pipe connector is further arranged on the side wall face of the male mold plate, an inserting block body part is arranged on the lower positioning block, and a spring bolt part is arranged on one side of the inserting block body part. The spring bolt part is elastically connected to the lower positioning block; and the upper positioning block is fixedly arranged on the female template, and the position of the upper positioning block corresponds to that of the lower positioning block. Compared with the prior art, the side edge positioning block solves the problems that the side edge positioning block of an existing dust collector handle injection mold is poor in positioning effect and cannot assist in achieving locking of opening and closing of the mold.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection molding device applied to a vacuum cleaner handle. Background Art

[0002] Most household vacuum cleaner handles are made of plastic and are processed and formed by injection molding. For example, Chinese Patent 201922468851.X discloses a mold for manufacturing a vacuum cleaner handle, which relates to the field of vacuum cleaner manufacturing technology. An injection molding cylinder is installed above the first mold box, a fixing plate is installed above the first mold box, a fixing screw is installed above the fixing plate, a first fixing leg is installed above the fixing plate, a second fixing leg is installed on one side of the second mold box, a lock sleeve is installed above the first fixing leg, a lock seat is installed above the second fixing leg, a lock core is installed inside the lock seat, an upper mold plate is provided inside the first mold box, a lower mold plate is provided inside the second mold box, an injection molding pipeline is provided inside the first mold box, a stabilizing saddle is installed above the upper mold plate, a fixed base is installed below the lower mold plate, and an isolation plate is provided inside the first mold box and the second mold box.

[0003] During the injection molding process of the vacuum cleaner handle, in order to ensure the processing quality of the vacuum cleaner handle, the mold matching accuracy needs to be ensured, so side positioning blocks are usually added to the four sides of the mold. However, the existing mold side positioning blocks are usually only positioned by plugging, with limited positioning effect, and cannot assist in achieving the locking of the mold opening and closing. Utility Model Content

[0004] The utility model aims to provide an injection molding device for a vacuum cleaner handle, so as to solve the problem that the side positioning block of the existing vacuum cleaner handle injection mold has poor positioning effect and cannot assist in realizing the locking of the mold opening and closing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an injection molding device applied to a vacuum cleaner handle, comprising:

[0006] A male mold plate, on which a male mold core is arranged;

[0007] A female mold plate, in which a female mold core is arranged, and the female mold core and the male mold core are assembled to form a molding cavity for molding a vacuum cleaner handle;

[0008] A lower positioning block is fixedly mounted in a mounting groove at a side of a male template, a first air pipe joint is arranged on the bottom surface of the mounting groove, the first air pipe joint extends into an inner cavity of the lower positioning block, a second air pipe joint is also arranged on a side wall of the male template, a gas flow channel is arranged between the first air pipe joint and the second air pipe joint, the gas flow channel is arranged in the male template, a plug-in block body is arranged on the lower positioning block, a locking tongue portion is arranged on one side of the plug-in block body, and the locking tongue portion is elastically connected to the lower positioning block;

[0009] The upper positioning block is fixedly installed on the mother template. The position of the upper positioning block corresponds to the lower positioning block. The upper positioning block is provided with a plug-in positioning groove whose shape matches the plug-in block body. A connecting plate is provided on one side of the plug-in positioning groove. The connecting plate is provided with an avoidance through hole corresponding to the position of the lock tongue.

[0010] As a further description of the above technical solution:

[0011] A cover plate is arranged on the bottom surface of the lower positioning block, a tube body is arranged on the cover plate, the cover plate is fixedly mounted on the lower positioning block by screws, and the first air pipe joint extends into the tube body.

[0012] As a further description of the above technical solution:

[0013] Symmetrically arranged second guiding inclined surfaces are provided on both sides of the plug-in block body.

[0014] As a further description of the above technical solution:

[0015] A guide groove is also arranged on the surface of the plug-in block body, and the connecting plate is slidably connected in the guide groove.

[0016] As a further description of the above technical solution:

[0017] The thickness of the connecting plate is greater than the thickness of the guide groove.

[0018] As a further description of the above technical solution:

[0019] A position sensor is arranged below the lower positioning block, and the position of the position sensor corresponds to the connecting plate.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0021] 1. In the utility model, when the male template and the female template are assembled, the plug-in block body of the lower positioning block is plugged into the plug-in positioning groove of the upper positioning block, and in the plug-in process of the lower positioning block and the upper positioning block, the bottom of the connecting plate first squeezes the inclined surface of the end of the lock tongue part, so that the lock tongue part retracts into the lower positioning block. After the two are plugged into place, the lock tongue part is inserted into the avoidance through hole of the connecting plate under the elastic force of the spring, and the lower positioning block and the upper positioning block are self-locking, so as to further lock the male template and the female template.

[0022] 2. In the utility model, a guide groove is also provided on the surface of the plug-in block body, and the connecting plate is slidably connected in the guide groove, further improving the plug-in locking effect of the lower positioning block and the upper positioning block. The thickness of the connecting plate is greater than the thickness of the guide groove, and the connecting plate is not easy to deform, thereby improving the plug-in locking effect of the lower positioning block and the upper positioning block.

[0023] 3. In the utility model, a position sensor is arranged below the lower positioning block, and the position of the position sensor corresponds to the connection plate. The position sensor is used to detect whether the connection plate is plugged in place downward, thereby effectively judging whether the mold is in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 The figure is a schematic diagram of the structure of an injection molding device applied to a vacuum cleaner handle.

[0026] Figure 2 The present invention is a schematic diagram of the cooperation between a lower positioning block and an upper positioning block in an injection molding device applied to a vacuum cleaner handle.

[0027] Figure 3 The present invention is a cross-sectional view of a lower positioning block in an injection molding device used in a vacuum cleaner handle.

[0028] Legend:

[0029] 1. Male template; 11. Male mold core; 12. First air pipe joint; 13. Second air pipe joint; 2. Female template; 3. Lower positioning block; 31. Plug-in block body; 311. Lock tongue; 312. Second guide slope; 313. Guide groove; 32. Cover plate; 321. Tube body; 4. Upper positioning block; 41. Plug-in positioning groove; 411. Connecting plate; 4111. Avoidance through hole; 5. Position sensor. DETAILED DESCRIPTION

[0030] 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 of 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.

[0031] See also Figure 1-3 The utility model provides a technical solution: an injection molding device applied to a vacuum cleaner handle, comprising:

[0032] A male mold plate 1, on which a male mold core 11 is arranged;

[0033] The female mold plate 2 has a female mold core disposed therein, and the female mold core and the male mold core 11 are assembled to form a molding cavity for molding the vacuum cleaner handle;

[0034] A lower positioning block 3 is fixedly mounted in a mounting groove at a side of the male template 1, a first air pipe joint 12 is arranged on the bottom surface of the mounting groove, the first air pipe joint 12 extends into the internal cavity of the lower positioning block 3, a second air pipe joint 13 is also arranged on the side wall surface of the male template 1, a gas flow channel is arranged between the first air pipe joint 12 and the second air pipe joint 13, the gas flow channel is arranged in the male template 1, a plug-in block body 31 is arranged on the lower positioning block 3, a locking tongue portion 311 is arranged on one side of the plug-in block body 31, and the locking tongue portion 311 is elastically connected to the lower positioning block 3;

[0035] The upper positioning block 4 is fixedly mounted on the mother template 2, and its position corresponds to the lower positioning block 3. The upper positioning block 4 is provided with a plug-in positioning groove 41 whose shape matches the plug-in block body 31, and a connecting plate 411 is provided on one side of the plug-in positioning groove 41. The connecting plate 411 is provided with an avoidance through hole 4111 whose position corresponds to the lock tongue portion 311.

[0036] A cover plate 32 is provided on the bottom surface of the lower positioning block 3, a tube body 321 is provided on the cover plate 32, and the cover plate 32 is fixedly mounted on the lower positioning block 3 by screws, and the first air pipe joint 12 extends into the tube body 321. The cover plate 32 closes the internal cavity of the lower positioning block 3, which is convenient for replacing and adjusting the locking tongue portion 311.

[0037] Symmetrically arranged second guide slopes 312 are provided on both sides of the plug-in block body 31. The plug-in block body 31 is a trapezoidal structure with "narrow at the top and wide at the bottom", which is convenient for plugging and locking the lower positioning block and the upper positioning block.

[0038] A guide groove 313 is also provided on the surface of the plug-in block body 31, and the connecting plate 411 is slidably connected in the guide groove 313, so as to further improve the plug-in locking effect of the lower positioning block and the upper positioning block.

[0039] The thickness of the connecting plate 411 is greater than the thickness of the guide groove 313 , and the connecting plate 411 is not easily deformed, thereby improving the plug-in locking effect of the lower positioning block and the upper positioning block.

[0040] A position sensor 5 is provided below the lower positioning block 3, and the position of the position sensor 5 corresponds to the connection plate 411. The position sensor 5 is used to detect whether the connection plate 411 is plugged in place, thereby effectively judging whether the mold is in place.

[0041] Working principle: When the vacuum cleaner handle is formed, the male mold plate 1 and the female mold plate 2 are assembled, and the female mold core and the male mold core 11 are assembled to form a molding cavity for molding the vacuum cleaner handle. When the male mold plate 1 and the female mold plate 2 are assembled, the plug-in block body 31 of the lower positioning block 3 is inserted into the plug-in positioning groove 41 of the upper positioning block 4, and in the process of plugging the lower positioning block 3 and the upper positioning block 4, the bottom of the connecting plate 411 first squeezes the end inclined surface of the lock tongue portion 311, so that the lock tongue portion 311 retracts into the lower positioning block 3. After the two are plugged into place, the lock tongue portion 311 is inserted into the avoidance through hole 4111 of the connecting plate 411 under the elastic force of the spring, and the lower positioning block 3 and the upper positioning block 4 are self-locking, so that the male mold plate 1 and the female mold plate 2 are further locked.

[0042] When the vacuum cleaner handle is unloaded, in order to separate the male template 1 and the female template 2, the air source connected to the second air pipe joint 13 generates negative pressure, so that the internal cavity of the lower positioning block 3 generates negative pressure, and the locking tongue portion 311 retreats under the external atmospheric pressure and disengages from the avoidance through hole 4111, thereby releasing the locking of the male template 1 and the female template 2. Afterwards, the air source supplies air to the internal cavity of the lower positioning block 3 through the second air pipe joint 13 and the first air pipe joint 12, and the air pressure in the internal cavity of the lower positioning block 3 is balanced, and the locking tongue portion 311 is reset under the action of the spring elastic force.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection molding device for a vacuum cleaner handle, characterized in that: include: A male mold plate, on which a male mold core is arranged; A female mold plate, in which a female mold core is arranged, and the female mold core and the male mold core are assembled to form a molding cavity for molding a vacuum cleaner handle; A lower positioning block, which is fixedly mounted in a mounting groove at the side of the male template, a first air pipe joint is arranged on the bottom surface of the mounting groove, the first air pipe joint extends into the internal cavity of the lower positioning block, a second air pipe joint is also arranged on the side wall surface of the male template, a gas flow channel is arranged between the first air pipe joint and the second air pipe joint, the gas flow channel is arranged in the male template, a plug-in block body is arranged on the lower positioning block, a locking tongue portion is arranged on one side of the plug-in block body, and the locking tongue portion is elastically connected to the lower positioning block; An upper positioning block is fixedly mounted on the mother template, the position of the upper positioning block corresponds to the lower positioning block, the upper positioning block is provided with a plug-in positioning groove whose shape matches the plug-in block body, a connecting plate is provided on one side of the plug-in positioning groove, and the connecting plate is provided with an avoidance through hole corresponding to the position of the lock tongue portion.

2. The injection molding device for a vacuum cleaner handle according to claim 1, characterized in that: A cover plate is arranged on the bottom surface of the lower positioning block, a tube body is arranged on the cover plate, the cover plate is fixedly mounted on the lower positioning block by screws, and the first air pipe joint extends into the tube body.

3. The injection molding device for a vacuum cleaner handle according to claim 1, characterized in that: The two sides of the plug-in block body are provided with symmetrically arranged second guiding inclined surfaces.

4. The injection molding device for a vacuum cleaner handle according to claim 1, characterized in that: A guide groove is also provided on the surface of the plug-in block body, and the connecting plate is slidably connected in the guide groove.

5. The injection molding device for a vacuum cleaner handle according to claim 4, characterized in that: The thickness of the connecting plate is greater than the thickness of the guide groove.

6. The injection molding device for a vacuum cleaner handle according to claim 5, characterized in that: A position sensor is arranged below the lower positioning block, and the position of the position sensor corresponds to the connecting plate.

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