Residual glue removing tool of injection molding part and production equipment of injection molding part

Abstract

The utility model discloses a residual glue removing tool of an injection molding part and production equipment of the injection molding part, relates to the technical field of ultrasonic vibration sprue runner removing, solves the problems that a product is prone to damage and a large amount of labor cost is consumed, and comprises an ultrasonic vibration device and a mechanical gripper. A base for placing an injection molding part is arranged in the ultrasonic vibration device; the base comprises a bearing plate, and a formed product groove matched with a formed product and a runner groove matched with residual glue are formed in the bearing plate; the mechanical gripper comprises a plurality of vacuum suction nozzles, and the vacuum suction nozzles correspond to the formed products one to one and are used for sucking and releasing the formed products. Damage of a product in the ultrasonic vibration pouring gate removing process can be reduced, and a large amount of labor cost is saved.

Description

Technical Field

[0001] The utility model relates to production equipment for injection molded parts, in particular to the technical field of removing residual glue by ultrasonic vibration. Background Art

[0002] At present, with the maturity of the technology of true wireless Bluetooth headset solutions, the market entry threshold has been lowered, and a large number of manufacturers have quickly entered the market. The materials commonly used to produce headset shells are relatively soft, and the finished products are thin sheet structures. The production process is prone to bruises, scratches, or shocks (generally referred to as the three injuries). In order to ensure the surface quality and appearance of Bluetooth headsets, the surface of Bluetooth headset shells is generally required to be a high-gloss mirror, which puts higher requirements on how to avoid the three injuries during the production process of Bluetooth headset shells.

[0003] After the existing Bluetooth headset shell is formed, the molded product and the gate runner of the shell are still adhered together, and the gate runner is usually removed by an ultrasonic vibration device. The traditional ultrasonic vibration device works as follows: the molded product and the gate runner that are adhered to the shell are placed on a positioning seat, and the positioning seat is provided with a blanking hole for the shell molded product. After the ultrasonic vibration device is turned on, the shell molded product is vibrated off and falls from the blanking hole into the storage box under the positioning seat. However, in the process of the molded product passing through the through hole and falling into the storage box, the shell molded product is prone to collision and friction with the positioning seat, the storage box and other shell molded products, which is easy to cause scratches on the high-gloss surface of the shell molded product. In addition, since the shell molded products in the storage box are in disarray, it is necessary to manually take the molded products out of the storage box one by one, blow off the dust, and then place them one by one and apply protective film. Multiple workers are required to work at the same time, which is costly. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned problems, the utility model provides a residual glue removal tool for injection molded parts and a production equipment for injection molded parts.

[0005] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0006] A tool for removing residual glue of an injection molded part, wherein the injection molded part comprises a molded product and residual glue adhering to the molded product;

[0007] The residual glue removal tooling includes an ultrasonic vibration device and a mechanical gripper; a base for placing injection molded parts is arranged in the ultrasonic vibration device; the base includes a receiving plate, a molded product groove matching the shape of the molded product, and a flow channel groove matching the shape of the residual glue are arranged on the receiving plate, the molded product groove and the flow channel groove are respectively used to place the molded product and the residual glue, and ultrasonic waves are emitted to the receiving plate through the ultrasonic vibration device to break the connection between the molded product and the residual glue; the mechanical gripper includes a vacuum suction nozzle, which corresponds to the molded product one by one and is used to suck and place the molded product.

[0008] Optionally, a collision vibration member is also included to drive the receiving plate to vibrate.

[0009] Optionally, the receiving plate is made of a flexible material.

[0010] Optionally, the base further includes a transition bottom plate, the receiving plate is fixedly connected to the upper end surface of the transition bottom plate, and further includes a collision vibration member, the collision vibration member is used to collide with the transition bottom plate to cause the receiving plate to vibrate.

[0011] Optionally, the base also includes a supporting base plate, the transition base plate is installed on the supporting base plate, and the collision vibrator includes a collision cylinder, which is arranged on the supporting base plate and located between the supporting point and the transition base plate, and the piston rod end of the collision cylinder can move up and down to collide with the transition base plate to cause the receiving plate to vibrate; the piston rod end of the collision cylinder collides at the center position of the transition base plate, and the center of the receiving plate and the center of the transition base plate are on the same vertical axis.

[0012] Optionally, the mechanical gripper further includes a clamping member for clamping residual glue.

[0013] Optionally, the clamping member includes a clamping block, a first driving member and a second driving member, and two clamping blocks are provided. The first driving member drives the two clamping blocks to move closer to or away from each other to clamp or release the center column, and the second driving member is used to drive the first driving member and the clamping block to rise and fall relative to the vacuum nozzle.

[0014] Optionally, the molded products include multiple, the residual glue includes a central column and multiple branches, the multiple branches diffuse outward from the central column in a radial structure, multiple molded products are connected one-to-one to the ends of the branches, the flow channel groove is a radial structure corresponding to the branches, and the molded product groove includes multiple, and the multiple molded product grooves are connected one-to-one to the ends of the flow channel groove.

[0015] A production equipment for injection molded parts, comprising an injection mold, a packaging device, and the above-mentioned residual glue removal tooling, wherein the injection mold is used to obtain injection molded parts by injection molding, the residual glue removal tooling is used to remove residual glue on the injection molded parts, and the molded products are placed on the packaging device through the mechanical gripper, and the packaging device is used to package and coat the molded products after the residual glue is removed.

[0016] Optionally, the injection mold includes multiple injection cavities and injection channels, and the multiple injection cavities are arranged at intervals along the circumference; the injection channel includes a main channel and multiple branch channels, and the multiple branch channels diffuse outward from the main channel and extend radially to each injection cavity one by one; the branch channel extends to the gap between two adjacent injection cavities and is connected to one of the injection cavities.

[0017] The technical solution provided by the utility model has the following beneficial effects:

[0018] 1. The shape of the molded product slot on the receiving plate is similar to that of the molded product, so that the molded product can fall into the molded product slot more accurately; so that the vacuum suction nozzle on the mechanical gripper can accurately absorb the molded product; thus, there is no need to manually take out and place the molded products one by one, reducing labor costs;

[0019] 2. By setting a collision vibration part, the receiving plate can vibrate slightly, so that some molded products that have not completely and accurately fallen into the molded product slot can fall accurately into the molded product slot after vibration, so as to achieve accurate positioning of the molded products, so as to facilitate the vacuum suction nozzle on the subsequent mechanical gripper to accurately suck the molded products, and avoid the position deviation of the vacuum suction nozzle when sucking the molded products, resulting in uneven force and damage to the molded products; and the molded products fall accurately into the molded product slot and are sucked by the vacuum suction nozzle on the mechanical gripper, without the need to manually take out the molded products one by one. After the mechanical gripper takes them out, the molded products can be directly placed neatly for packaging and filming, without the need to manually place the molded products one by one, thus saving a lot of labor, improving work efficiency and reducing labor costs;

[0020] 3. The receiving plate is flexible, so that the molded product will not have a rigid collision when it falls into the molded product slot of the receiving plate, avoiding scratches and bumps on the surface of the molded product; and the collision cylinder is used to collide with the middle position of the transition bottom plate, and its impact energy will be evenly diffused from the center of the receiving plate to the outside, so that the molded products in each molded product slot are evenly stressed and vibrate, ensuring that each molded product can accurately fall into the molded product slot and achieve precise positioning;

[0021] 4. The mechanical gripper is provided with a clamping piece, which can clamp and remove the residual glue from the receiving plate after removal, so as to facilitate the next injection molded part to be placed on the receiving plate for subsequent ultrasonic vibration residual glue removal work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of the injection molded part in this embodiment;

[0023] Figure 2 is an exploded schematic diagram of the receiving plate, the injection molded part and the mechanical gripper in this embodiment;

[0024] Figure 3 1 is a front view of the residual glue removal tooling and the injection molded part in this embodiment;

[0025] Figure 4 is a schematic diagram of the mechanical gripper in this embodiment;

[0026] Figure 5 2 is a schematic diagram of the mechanical gripper from another perspective in this embodiment.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. molded product; 2. residual glue; 21. center column; 22. branch part; 3. base; 31. receiving plate; 311. molded product groove; 312. flow channel groove; 32. transition bottom plate; 33. support bottom plate; 4. collision vibrator; 41. collision cylinder; 42. collision block; 43. collision column; 5. mechanical gripper; 51. vacuum nozzle; 52. clamping member; 521. clamping block; 522. first driving member; 523. second driving member; 524. arc-shaped notch; 53. connecting seat. DETAILED DESCRIPTION

[0028] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0030] This embodiment provides a production equipment for injection molded parts, wherein this embodiment takes a shell of a Bluetooth headset as an example, and the production equipment further includes an injection mold, a residual glue removal tooling, and a packaging device. The injection mold is used to obtain an injection molded finished product, that is, the shell of a Bluetooth headset, such as Figure 1, shows a schematic diagram of an injection molded part obtained after the injection mold is completed, the injection molded part includes a molded product 1 and residual glue 2 adhered to the molded product 1, wherein the molded product 1 includes multiple molded products 1 arranged at intervals along the circumference, corresponding to the injection mold, that is, the injection mold includes multiple injection cavities, and the multiple injection cavities are arranged at intervals along the circumference, so that multiple molded products 1 can be made in one injection. The residual glue 2 is a solidified colloid remaining in the injection flow channel of the injection mold, that is, the shape of the residual glue 2 also corresponds to the shape of the injection flow channel in the injection mold, the residual glue 2 includes a central column 21 and multiple branch parts 22, the multiple branch parts 22 diffuse outward from the central column 21 in a radial shape, the molded products 1 are connected one by one to the ends of the branch parts 22, corresponding to the injection flow channel of the injection mold, that is, the injection flow channel includes a main flow channel and multiple branch flow channels, the multiple branch flow channels diffuse outward from the main flow channel in a radial shape and extend one by one to each injection cavity. In this embodiment, the branch portion 22 is an "L"-shaped structure, which extends into the gap between the two molded products 1 and then bends to connect to one of the molded products 1. In other embodiments, the branch portion 22 or the branch flow channel may also adopt other structures, such as the branch portion 22 is a "T"-shaped structure, one end of which extends into the gap between the two molded products 1 and is forked to connect to the two molded products 1. This structure can better support the molded product 1, and the molded product 1 is less likely to shake during the subsequent spraying or grabbing of the injection molded parts. However, for the injection molded parts of this structure, since one molded product 1 is connected to two branch portions 22 at the same time, the residual glue 2 is more likely to scratch the molded product 1 during the process of removing the residual glue 2, resulting in poor surface quality of the molded product 1.

[0031] After the injection mold produces the injection molded parts, multiple batches of injection molded parts can be collected at a predetermined location, and then the injection molded parts can be transferred to the residual glue removal tooling, which is used to remove the residual glue 2 so as to separate the residual glue 2 from the molded product 1. The residual glue removal tooling may include an automatic gripping mechanism, and the automatic gripping mechanism is used to achieve the transfer of the injection molded parts. Alternatively, after the injection mold produces the injection molded parts, the injection molded parts can be directly transferred to the residual glue removal tooling through the automatic gripping mechanism.

[0032] The residual adhesive removal tool includes an ultrasonic vibration device. For example, the ultrasonic vibration device can be box-shaped, and an ultrasonic vibration generating area is formed in the box space. The ultrasonic vibration device further includes a base 3 arranged in the ultrasonic vibration generating area. Figure 2The base 3 includes a receiving plate 31, on which a molded product groove 311 and a flow channel groove 312 are provided. The molded product groove 311 and the flow channel groove 312 are connected, and the molded product groove 311 is used for placing the injection molded part on the flow channel groove 312 and the molded product groove 311. After the ultrasonic vibration device ultrasonically vibrates the injection molded part, the molded product 1 falls into the molded product groove 311. The shape of the bottom of the molded product groove 311 is similar to that of the molded product 1, and the groove opening of the molded product groove 311 is an outward expansion structure, and the area size of the groove opening is larger than the size of the molded product 1, so that the molded product 1 can fall into the molded product groove 311 more accurately.

[0033] In order to reduce the situation that the molded product 1 does not completely fall into the molded product groove 311, that is, a part of the molded product 1 may be tilted and placed on the edge of the molded product groove 311, or the molded product 1 may be tilted and placed on the groove wall of the molded product groove 311. For this purpose, the ultrasonic vibration device includes a collision vibration member 4, such as Figure 3 The collision vibrator 4 is used to drive the receiving plate 31 to vibrate slightly, so that the molded products 1 that have fallen irregularly into the molded product groove 311 can fall completely into the molded product groove 311 after slight vibration. After the molded products 1 fall into the molded product groove 311 regularly one by one, the molded products 1 in the molded product groove 311 can be taken away by the mechanical gripper 5.

[0034] In order to avoid a rigid collision when the molded product 1 separates from the residual glue 2 and falls into the molded product groove 311, which may cause scratches on the surface of the molded product 1, the receiving plate 31 is made of a material with flexible deformation ability. In this embodiment, the receiving plate 31 is made of high-strength rubber, so that when the molded product 1 falls into the molded product groove 311, there will be no rigid collision, which may cause damage to the surface of the molded product 1. Since the receiving plate 31 is made of a flexible material, in order to ensure that the receiving plate 31 can have a sufficient vibration amplitude, the base 3 also includes a rigid transition bottom plate 32, and the receiving plate 31 is fixedly mounted on the upper end surface of the transition bottom plate 32. The collision vibrator 4 collides with the transition bottom plate 32, thereby causing the receiving plate 31 to vibrate, thereby correcting the position of the molded product 1 relative to the molded product groove 311.

[0035] The base 3 also includes a supporting base plate 33, and the transition base plate 32 is installed on the upper end of the supporting base plate 33. The collision vibrator 4 is installed on the supporting base plate 33 and is located between the supporting base plate 33 and the transition base plate 32. In this embodiment, the collision vibrator 4 adopts a collision cylinder 41, and the collision cylinder 41 is installed on the supporting base plate 33. The piston rod of the collision cylinder 41 moves up and down, so that it can collide with the transition base plate 32, thereby causing the receiving plate 31 to vibrate slightly. The position where the transition base plate 32 is hit is located at its center, and the center points of the receiving plate 31 and the transition base plate 32 are located on the same vertical axis. In this way, when the transition base plate 32 is hit, its impact energy will be evenly diffused outward from the center of the receiving plate 31, so that the molded product 1 in each molded product groove 311 is evenly stressed and vibrates, ensuring that each molded product 1 can accurately fall into the molded product groove 311 to complete the positioning. In addition, in order to increase the service life of the collision cylinder 41 and the transition base plate 32, a collision block 42 is detachably fixedly installed at the end of the piston rod of the collision cylinder 41, and the collision block 42 is made of metal; similarly, a collision column 43 is threadedly connected at the center of the transition base plate 32 in the direction of the collision cylinder 41. The collision block 42 hits the collision column 43, thereby causing the receiving plate 31 to vibrate slightly. In other embodiments, the collision vibrator 4 can also use a cam mechanism, which drives the rotation of the cam driven by a motor to collide with the support base plate 334, so that the receiving plate 313 vibrates slightly. However, the use of a cam mechanism needs to be driven by a motor, occupies a large space, and has a high cost.

[0036] like Figure 4 and Figure 5 , the mechanical gripper 5 is used to be installed at the end of the automatic gripping mechanism to grab the injection molded parts. The mechanical gripper 5 includes a vacuum suction nozzle 51, a clamping member 52 and a connecting seat 53. The vacuum suction nozzle 51 and the clamping member 52 are both installed on the connecting seat 53, and the connecting seat 53 is driven by the mechanical arm of the automatic gripping mechanism to drive the vacuum suction nozzle 51 and the clamping member 52 to perform translation, lifting, flipping and other actions. The connecting lines of each vacuum suction nozzle 51 are arranged in a ring shape on the connecting seat 53, and the vacuum suction nozzles 51 correspond to the molded product 1 one by one. In this way, the mechanical gripper 5 can suck away all the molded products 1 in the receiving plate 31 at one time. The clamping member 52 is arranged at the center of the connecting seat 53, and the clamping member 52 includes two clamping blocks 521, a first driving member 522 and a second driving member 523.

[0037] The first driving member 522 drives and connects the two clamping blocks 521 so that the two clamping blocks 521 can move closer to or farther from each other, thereby clamping the center column 21 at the center of the gate runner. The first driving member 522 uses a clamping claw cylinder to drive the two clamping blocks 521 to move closer to or farther from each other. In other embodiments, a motor can also be used to drive the two-way screw to rotate, and the clamping blocks 521 are installed on both sides of the two-way screw, thereby driving the two clamping blocks 521 to move closer to or farther from each other. The second driving member 523 drives and connects the first driving member 522, driving the first driving member 522 to move up and down, thereby driving the gate runner to move up and down relative to the vacuum suction nozzle 51, so as to prevent the vacuum suction nozzle 51 from contacting the residual glue 2 that has fallen off when sucking the molded product 1. The second driving member 523 uses a lifting cylinder, and the first driving member 522 is installed on the piston rod of the lifting cylinder through a connecting plate, thereby driving the first driving member 522 to move up and down. In other embodiments, a linear motor can also be used to drive the first driving member 522 to move up and down. Furthermore, an arc-shaped notch 524 is provided on one side wall of the two clamping blocks 521 which are close to each other. When the two clamping blocks 521 are close to each other, the arc-shaped notch 524 on the clamping blocks 521 can be clamped on the outer wall of the center column 21 to clamp the center column 21.

[0038] During operation, the mechanical gripper 5 grabs the injection molded part and places it on the ultrasonic base 3. The mechanical gripper 5 moves out of the ultrasonic vibration device, and the residual glue 2 of the injection molded part can fall into the flow channel groove 312 to complete the positioning; then the ultrasonic vibration head in the ultrasonic vibration device ultrasonically vibrates the injection molded part to separate the molded product 1 from the residual glue 2, and the molded product 1 can fall into the molded product groove 311 of the receiving plate 31; then the collision cylinder 41 collides with the transition bottom plate 32, so that the receiving plate 31 vibrates slightly, so that the molded product 1 falls accurately into the molded product groove 311. After the molded product 1 and the residual glue 2 are separated, the mechanical gripper 5 moves into the ultrasonic vibration device, and the first driving member 522 drives the two clamping blocks 521 to clamp the center column 21 of the residual glue 2, and drives the first driving member 522 and the entire gate runner to rise relative to the vacuum suction nozzle 51 through the second driving member 523, so as to avoid the contact between the molded product 1 and the residual glue 2 when the vacuum suction nozzle 51 adsorbs the molded product 1, thereby preventing the surface of the molded product 1 from being damaged; then the vacuum suction nozzle 51 corresponds to the molded product 1 one by one, and adsorbs the molded product 1; at this time, the mechanical gripper 5 can be moved out of the ultrasonic vibration device, and the molded product 1 can be subsequently filmed, and the residual glue 2 can be placed in the recycling box. In this way, after the injection molded part is subjected to ultrasonic vibration to remove the residual glue 2, it can accurately fall into the molded product groove 311, complete the positioning, and then the vacuum suction cup of the mechanical gripper 5 accurately adsorbs the molded product 1, and then moves out of the ultrasonic vibration device for subsequent work; the molded product 1 will not be damaged, and a large amount of labor costs can be saved.

[0039] The packaging device is used to realize the packaging of multiple molded products 1. The mechanical gripper 5 provided in this embodiment can neatly grab multiple molded products 1 from the residual glue removal tooling at one time, and then place them on the packaging device, so that there is no need to manually arrange the molded products 1, and multiple molded products 1 can be neatly placed on the packaging device for packaging. The packaging device can be realized by existing means. In this embodiment, the packaging device includes a conveyor belt with a conveying platform, and a belt packaging film is attached to the conveyor belt. The belt packaging film and the conveyor belt move synchronously. The mechanical gripper 5 places multiple molded products 1 on the belt packaging film, and manually folds a section of the belt packaging film at the end of the conveyor belt to package multiple molded products 1. The belt packaging film can be cut after packaging is completed.

[0040] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A tool for removing residual glue from injection molded parts, characterized in that: Injection molded parts include molded products and residual glue adhering to the molded products; The residual glue removal tooling includes an ultrasonic vibration device and a mechanical gripper; a base for placing injection molded parts is arranged in the ultrasonic vibration device; the base includes a receiving plate, a molded product groove matching the shape of the molded product, and a flow channel groove matching the shape of the residual glue are arranged on the receiving plate, the molded product groove and the flow channel groove are respectively used to place the molded product and the residual glue, and ultrasonic waves are emitted to the receiving plate through the ultrasonic vibration device to break the connection between the molded product and the residual glue; the mechanical gripper includes a vacuum suction nozzle, which corresponds to the molded product one by one and is used to suck and place the molded product.

2. The residual glue removal tool for injection molded parts according to claim 1, characterized in that: It also includes a collision vibration member, which is used for driving the receiving plate to vibrate.

3. The residual glue removal tool for injection molded parts according to claim 1, characterized in that: The receiving plate is made of flexible material.

4. The residual glue removal tool for injection molded parts according to claim 3, characterized in that: The base also includes a transition bottom plate, the receiving plate is fixedly connected to the upper end surface of the transition bottom plate, and also includes a collision vibration member, the collision vibration member is used to collide with the transition bottom plate to make the receiving plate vibrate.

5. The residual glue removal tool for injection molded parts according to claim 4, characterized in that: The base also includes a supporting base plate, the transition base plate is installed on the supporting base plate, the collision vibration member includes a collision cylinder, the collision cylinder is arranged on the supporting base plate and is located between the supporting point and the transition base plate, the piston rod end of the collision cylinder can move up and down to collide with the transition base plate to cause the receiving plate to vibrate; the piston rod end of the collision cylinder collides with the center position of the transition base plate, and the center of the receiving plate and the center of the transition base plate are on the same vertical axis.

6. The residual glue removal tool for injection molded parts according to claim 1, characterized in that: The mechanical gripper also includes a clamping member for clamping residual glue.

7. The residual glue removal tool for injection molded parts according to claim 6, characterized in that: The clamping member includes a clamping block, a first driving member and a second driving member. Two clamping blocks are provided. The first driving member drives the two clamping blocks to move closer to or away from each other to clamp or release the center column. The second driving member is used to drive the first driving member and the clamping block to rise and fall relative to the vacuum suction nozzle.

8. The residual glue removal tool for injection molded parts according to claim 1, characterized in that: The molded products include multiple, the residual glue includes a central column and multiple branches, the multiple branches diffuse outward from the central column in a radial structure, multiple molded products are connected one-to-one to the ends of the branches, the flow channel groove is a radial structure corresponding to the branches, and the molded product groove includes multiple, and the multiple molded product grooves are connected one-to-one to the ends of the flow channel groove.

9. A production equipment for injection molded parts, characterized in that: It comprises an injection mold, a packaging device, and a residual glue removal tool as described in any one of claims 1 to 8, wherein the injection mold is used for injection molding to obtain an injection molded part, the residual glue removal tool is used for removing residual glue on the injection molded part, and the molded product is placed on the packaging device through the mechanical gripper, and the packaging device is used for packaging and laminating the molded product after the residual glue is removed.

10. The production equipment for injection molded parts according to claim 9, characterized in that: The injection mold includes multiple injection cavities and injection channels, and the multiple injection cavities are arranged at intervals along the circumference; the injection channel includes a main channel and multiple branch channels, and the multiple branch channels diffuse outward from the main channel and extend radially to each injection cavity one by one; the branch channel extends to the gap between two adjacent injection cavities and is connected to one of the injection cavities.

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