Injection molding equipment for machining electric tool shell

By using the combination of components such as compression cylinders, dual-axis motors in the injection molding equipment, synchronous and automatic center positioning of the injection molds is achieved, and vibration problems and high equipment costs are solved in the prior art caused by different clamping of multiple molds in the prior art, and positioning effect and equipment efficiency are improved.

CN119610535AInactive Publication Date: 2025-03-14NANTONG BAIRUILI ELECTRIC TOOLS CO LTD
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Patent Information

Application Number
CN202510154207.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2025-03-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing injection molding equipment is carried out differently during the clamping process of multiple molds, resulting in shocks that impact the clamping places where the positioning has been completed, resulting in unsatisfactory positioning effect; at the same time, controlling the mold positioning by the power source increases the equipment cost and failure rate; manual adjustment of the positioning clamping structure has low relative position accuracy and cumbersome operation.

Method used

An injection molding equipment for shell processing of electric tools is designed, using a combination of compacting cylinders, dual-axis motors, double-headed studs, threaded rods, sliders and belts to realize the synchronous central positioning and transverse central position of the injection mold; through the coordination of the movable frame, sliders, slide sleeves and columns, the relative distance between the injection molding heads and the relative position of the positioning clamping structure are automatically adjusted.

Benefits of technology

It effectively avoids vibration problems caused by different clamping processes of multiple molds, and improves the idealness of positioning effect; reduces equipment cost and failure rate through sharing power sources; automatic adjustment function improves positioning accuracy and reduces the burden of manual operation.

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Abstract

The invention relates to the technical field of injection molding equipment, in particular to injection molding equipment for electric tool shell machining, which comprises a machining platform and a rear support, supporting legs are fixedly connected to four corners of the lower end of the machining platform, an adjusting assembly is mounted in the rear support, and a linkage assembly is mounted on the front side of the upper end of the machining platform. And positioning assemblies are mounted at the left and right parts of the front side of the outer wall of the injection mold. Through cooperation of a pressing air cylinder, a double-shaft motor, a double-end stud, a threaded rod and a belt, the double-shaft motor synchronously drives the double-end stud and the threaded rod to rotate through a sliding strip and the belt, and then sliding blocks in the same frame can be driven to synchronously move inwards till transverse center positioning of an injection mold is completed; and the problem that the positioning effect is not ideal due to the fact that the clamping processes of a plurality of dies are not carried out at the same time and vibration generated by the dies in the subsequent clamping process easily causes certain impact on the clamped position where positioning is completed is effectively solved.
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Description

Technical Field

[0001] The invention relates to the technical field of injection molding equipment, in particular to an injection molding equipment for processing a power tool housing. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It applies high pressure to the molten plastic to make it ejected and fill the mold cavity. In the processing of power tool housings, continuous assembly line injection molding equipment is indispensable.

[0003] However, in the prior art, most of the injection molding equipment is controlled by a power source to perform the center positioning and clamping process of the injection molds one by one during the placement of the injection molds. Although it can also achieve center positioning in groups of three, the clamping process of multiple molds is not carried out simultaneously, resulting in the vibration generated during the subsequent clamping, which will easily cause a certain impact on the clamping position that has completed the positioning, and thus easily cause the problem of unsatisfactory positioning effect.

[0004] At the same time, if the center positioning and clamping process of the injection molds is performed one by one by a power source, it is necessary to install a power source at the position of each injection mold, which not only increases the equipment cost, but also easily leads to problems such as low coordination and higher equipment failure rate.

[0005] Finally, in the prior art, after adjusting the relative distance between the three injection molding heads, the operator is still required to manually adjust the positioning clamping structure to ensure that the center positioning position corresponds to the injection molding head position. However, manual operation is prone to low accuracy, and the secondary manual operation increases the burden on the operator and slows down the process. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that the clamping process of multiple molds is not carried out simultaneously, resulting in the vibration generated during the subsequent clamping, which will easily cause a certain impact on the clamping position that has completed the positioning, and then easily cause unsatisfactory positioning effect, which not only causes an increase in equipment costs, but also easily leads to a low degree of fit. At the same time, the equipment failure rate is higher and the operator is still required to manually adjust the positioning clamping structure, which leads to low accuracy in manual operation, and the secondary manual operation increases the burden on the operator and the process is slow. An injection molding device for processing electric tool housings is proposed.

[0007] To achieve the above object, the present invention provides the following technical solutions: An injection molding device for processing an electric tool housing is designed, comprising a processing platform and a rear bracket, wherein the four corners of the lower end of the processing platform are fixedly connected with support feet, a plurality of conveying rollers are equidistantly rotatably connected to the center of the inner wall of the processing platform, a plurality of injection molds are equidistantly placed on the upper part of the conveying rollers, an adjustment component is installed inside the rear bracket, a linkage component is installed on the front side of the upper end of the processing platform, and positioning components are installed on the left and right parts of the front side of the outer wall of the injection mold.

[0008] Preferably, the adjustment assembly includes a cone bucket, a lifting cylinder, a movable frame, an upper rotating wheel, a sliding platform, a spring, a side rotating wheel, a vertical slide rail, a movable plate, a vertical bolt, a horizontal screw and a slide rod; The outer ends of the axles are connected with the guide wheels, and the outer ends of the axles are connected with the guide wheels respectively.

[0009] Preferably, the lower end of the cone bucket is fixedly connected to an injection head, and the cone bucket is communicated with the injection head.

[0010] Preferably, a rear bracket is fixedly connected to the rear side of the upper end of the processing platform, and both sides of the front end of the rear bracket are fixedly connected to the processing platform through inclined beams.

[0011] Preferably, the linkage assembly includes a column, a baffle, a clamping cylinder, a front bracket, a side frame, a sliding sleeve, a center frame, a main frame, a sliding rod and a horizontal slide rail; The front ends of the main bodies of the multiple clamping cylinders are fixedly connected to the processing platform through the front bracket, the ends of the output shafts of the clamping cylinders are fixedly connected to the center frame, the upper end of the center frame is fixedly connected to a main frame, the inner walls on both sides of the outer wall of the main frame are slidably connected to horizontal slide rails, the ends of the horizontal slide rails are fixedly connected to side frames, the upper centers of the side frames are fixedly connected to the sliding sleeves through columns, the inner walls of the sliding sleeves are slidably connected to sliding rods three, and the front and rear sides of the sliding rods three are respectively fixedly connected to the baffle and the movable frame.

[0012] Preferably, the side frames and the center frame on both sides are distributed in a position close to the upper center and slightly below the center on both sides.

[0013] Preferably, the positioning assembly includes a second slide bar, a threaded rod, a slider, a pad, a sleeve, a belt, a stud, a dual-axis motor, a spindle, a slide bar and a clamp; The transmission mechanism that the cam is used for the rotation of the steering wheel is formed on the steering column, and the transmission mechanism that the cam is used for rotation of the steering wheel is formed on the steering column, and the transmission mechanism that the cam is used for rotation of the steering wheel is formed on the steering column, and the transmission mechanism that the cam is used for rotation of the steering wheel is formed on the steering column.

[0014] Preferably, the rear side of the outer wall of the backing plate is in contact with the injection mold, and the contacting parts between the backing plate and the injection mold are relatively smooth.

[0015] The present invention provides an injection molding device for processing a power tool housing, which has the following beneficial effects: Through the coordination among the clamping cylinder, the double-axis motor, the stud, the threaded rod, the slide bar and the belt, the clamping cylinder is controlled so that the injection mold can synchronously complete the center positioning in the front and rear directions. The double-axis motor is started, and the double-axis motor synchronously drives the stud and the threaded rod to rotate through the slide bar and the belt, so that the slider inside the same frame can be driven to move inward synchronously, and then the slider can drive the clamping claw to move inward synchronously until the lateral center positioning of the injection mold is completed, which effectively avoids the clamping process of multiple molds not being carried out at the same time, resulting in the vibration generated during the subsequent clamping, which will easily cause a certain impact on the clamping position that has completed the positioning, and thus easily cause the problem of unsatisfactory positioning effect; Through the coordination between the threaded rod, the stud, the dual-axis motor and the belt, the dual-axis motor is started, so that the dual-axis motor synchronously drives the stud and the threaded rod to rotate through the slide bar and the belt, so that multiple studs and threaded rods share the same power source, namely the dual-axis motor, thus greatly reducing the design cost and eliminating the problem of difficulty in designing multiple power sources to coordinate with each other; Through the cooperation of the movable frame, the sliding rod three, the sliding sleeve, the column and the side frame, during the lateral movement of the movable frame, the movable frame can drive the corresponding side frame to move synchronously outward or inward through the sliding rod three, the sliding sleeve and the column, so that the center of the side frame is always consistent with the center position of the injection molding head. In this way, the accuracy of the center positioning can still be guaranteed during the center positioning after the position adjustment, and it is effectively avoided that the operator still needs to manually adjust the relative adjustment of the positioning clamping structure, which leads to the situation that the manual operation is prone to low accuracy, and the secondary manual operation increases the burden on the operator and the process is slow. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the front appearance structure of the present invention; Figure 2 It is a schematic diagram of the rear appearance structure of the present invention; Figure 3 It is a schematic diagram of the front appearance structure of the processing platform in the present invention; Figure 4 It is a schematic diagram of the rear appearance structure of the processing platform in the present invention; Figure 5 This is a schematic diagram of the front appearance structure of the rear bracket of the present invention; Figure 6 It is a schematic diagram of the rear appearance structure of the rear bracket of the present invention; Figure 7 For the present invention Figure 5 A schematic diagram of the structure in an upward-looking state; Figure 8 It is a structural schematic diagram of the linkage component and the positioning component in the present invention; Fig. 9 For the present invention Figure 3 A schematic diagram of the structure enlargement at point A; Fig.10 For the present invention Figure 7 Schematic diagram of the enlarged structure at point B in FIG.

[0017] In the figure: 1, processing platform; 2, rear bracket; 3, adjustment assembly; 301, cone bucket; 302, lifting cylinder; 303, movable frame; 304, upper rotating wheel; 305, sliding platform; 306, spring; 307, side rotating wheel; 308, vertical slide rail; 309, movable plate; 310, vertical bolt; 311, horizontal screw rod; 312, slide bar 1; 4, positioning assembly; 401, slide bar 2; 402, threaded rod; 403, slider; 404, pad; 405, sleeve ; 406, belt; 407, stud; 408, dual-axis motor; 409, main shaft; 410, slide bar; 411, clamp; 5, linkage assembly; 501, column; 502, baffle; 503, clamping cylinder; 504, front bracket; 505, side frame; 506, sliding sleeve; 507, center frame; 508, main frame; 509, slide bar three; 510, horizontal slide rail; 6, injection head; 7, injection mold; 8, support foot; 9, inclined beam; 10, conveyor roller. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings: See attached Figure 1-10 In the present embodiment, an injection molding device for processing an electric tool housing includes a processing platform 1 and a rear bracket 2. Support feet 8 are fixedly connected to the four corners of the lower end of the processing platform 1. A plurality of conveying rollers 10 are equidistantly connected to the center of the inner wall of the processing platform 1 and are used for supporting the injection mold 7 and for lateral conveying during picking. A plurality of injection molds 7 are equidistantly placed on the upper part of the conveying rollers 10. An adjustment component 3 is installed inside the rear bracket 2. A linkage component 5 is installed on the front side of the upper end of the processing platform 1. Positioning components 4 are installed on the left and right parts of the front side of the outer wall of the injection mold 7. The rear bracket 2 is fixedly connected to the rear side of the upper end of the processing platform 1. Both sides of the front end of the rear bracket 2 are fixedly connected to the processing platform 1 through inclined beams 9. The inclined beams 9 realize auxiliary support for the rear bracket 2.

[0019] See attached Figure 1-10 : In this embodiment, the adjustment assembly 3 includes a cone bucket 301, a lifting cylinder 302, a movable frame 303, an upper rotating wheel 304, a sliding platform 305, a spring 306, a side rotating wheel 307, a vertical slide rail 308, a movable plate 309, a vertical bolt 310, a horizontal screw rod 311 and a slide rod 312; The plurality of vertical slide rails 308 are respectively fixedly connected to the front and rear sides of the left and right parts of the inner wall of the rear bracket 2, the upper part of the outer wall of the vertical slide rail 308 is slidably connected to the sliding platform 305, the upper center of the sliding platform 305 is rotatably connected to the vertical bolt 310, the upper part of the outer wall of the vertical bolt 310 is threadedly connected to the rear bracket 2, and the end of the vertical bolt 310 is fixedly connected to the upper rotating wheel 304, the upper and lower sides of the inner wall of the sliding platform 305 are fixedly connected to the sliding rod 1 312, the inner wall sides of the movable plates 309 on both sides are slidably connected to the sliding rod 1 312, the inner wall sides of the central movable plate 309 are fixedly connected to the sliding rod 1 312, and the inner wall center of the central movable plate 309 is rotatably connected to a horizontal screw 311, the horizontal screw 311 rotates to drive the movable plates 309 and the movable frame 303 on both sides to move inward or outward synchronously, and the outer side of the outer wall of the horizontal screw 311 is connected to the movable plates 309 on both sides 09 threaded connection, the outer end of the transverse screw 311 is fixedly connected with a side rotating wheel 307, the front side of the outer wall of the movable plate 309 is fixedly connected with a movable frame 303, the upper end of the movable frame 303 is fixedly connected with a lifting cylinder 302, the model of the lifting cylinder 302 can be determined according to the specific usage, the output shaft of the lifting cylinder 302 adopts a flat structure, when it is against the inside of the cone bucket 301, there is still a certain gap at the through hole of the cone bucket 301, the end of the output shaft of the lifting cylinder 302 is tightly against the cone bucket 301, the lower part of the outer wall of the cone bucket 301 is movably connected to the movable frame 303 through a spring 306, the elastic coefficient of the spring 306 can be determined according to the specific usage, the lower end of the cone bucket 301 is fixedly connected with the injection head 6, and the cone bucket 301 is connected to the injection head 6, the injection head 6 can apply high pressure to the molten plastic and inject it, and the specific model can be determined according to the usage.

[0020] See attached Figure 1-10 : In this embodiment, the linkage assembly 5 includes a column 501, a baffle 502, a clamping cylinder 503, a front bracket 504, a side frame 505, a sliding sleeve 506, a center frame 507, a main frame 508, a sliding rod 509 and a horizontal slide rail 510; The front ends of the main bodies of the plurality of clamping cylinders 503 are fixedly connected to the processing platform 1 through the front bracket 504, the ends of the output shafts of the clamping cylinders 503 are fixedly connected to the center frame 507, the upper end of the center frame 507 is fixedly connected to a main frame 508, the inner walls on both sides of the outer wall of the main frame 508 are slidably connected to horizontal slide rails 510, the ends of the horizontal slide rails 510 are fixedly connected to side frames 505, the model of the clamping cylinders 503 can be determined according to specific usage conditions, the upper centers of the side frames 505 are fixedly connected to the sliding sleeve 506 through the column 501, the inner walls of the sliding sleeve 506 are slidably connected to a sliding rod three 509, the front and rear sides of the sliding rod three 509 are respectively fixedly connected to the baffle 502 and the movable frame 303, and the side frames 505 and the center frame 507 are distributed at a position lower than the upper center on both sides.

[0021] Through the cooperation of the movable frame 303, the sliding rod 3 509, the sliding sleeve 506, the column 501 and the side frame 505, during the lateral movement of the movable frame 303, the movable frame 303 can drive the corresponding side frame 505 to move synchronously outward or inward through the sliding rod 3 509, the sliding sleeve 506 and the column 501, so that the center of the side frame 505 is always consistent with the center position of the injection molding head. In this way, the accuracy of the center positioning can still be guaranteed during the center positioning after the position adjustment, and it is effectively avoided that the operator still needs to manually perform relative adjustment of the positioning clamping structure, which leads to the situation that the manual operation is prone to low accuracy, and the secondary manual operation increases the burden on the operator and the process is slow.

[0022] See attached Figure 1-10 : In this embodiment, the positioning assembly 4 includes a second slide bar 401, a threaded rod 402, a slider 403, a pad 404, a sleeve 405, a belt 406, a stud 407, a dual-axis motor 408, a spindle 409, a slide bar 410 and a clamp 411; The double-axis motor 408 is fixedly connected to the front end center of the outer wall of the main frame 508, and the output shafts on both sides of the double-axis motor 408 are fixedly connected to the main shaft 409. A plurality of slide bars 401 are respectively slidably connected to the inner walls of the side frame 505 and the center frame 507. The left and right studs 407 are mirror-imaged, and the thread angles on the inner sides of the studs 407 are opposite to the thread angles on the threaded rods 402 on the same side, that is, to ensure the following specific conditions: if the slider 403 on the left side of the inner wall of the right side frame 505 moves to the right, the right slider 403 on the center frame 507 moves to the left, and the outer walls of the slide bars 401 are slidably connected to the sliders 403, and the front sides of the outer walls of the sliders 403 are fixedly connected to the clamps 411. The double-axis motor 408 is a double-headed servo motor, and the specific model can be determined according to the specific usage. After the position of the side frame 505 is adjusted, the extension and retraction degree of the slide bar 410 inside the main shaft 409 is adjusted, and the main shaft 409 and the studs 40 7 can be rotated and transmitted through the slide bar 410, the front end of the outer wall of the slider 403 is fixedly connected with a sleeve 405, the inner wall of the upper sleeve 405 is threadedly connected with a stud 407, both sides of the stud 407 are rotatably connected to the side frame 505 through bearings, the inner wall of the lower sleeve 405 is threaded with a threaded rod 402, both sides of the threaded rod 402 are rotatably connected to the center frame 507 through bearings, the inner side of the stud 407 is fixedly connected to the outer wall of the rotating shaft There are multiple slide bars 410, the outer wall of the slide bar 410 is slidably connected to the inner wall groove of the main shaft 409, the inner side shaft pulley of the threaded rod 402 is rotatably connected to the outer wall end pulley of the main shaft 409 through the belt 406, the rear end center of the main frame 508, the side frame 505 and the center frame 507 are fixedly connected with the pad 404, the rear side of the outer wall of the pad 404 is in contact with the injection mold 7, and the contact between the pad 404 and the injection mold 7 is relatively smooth.

[0023] Through the coordination among the clamping cylinder 503, the double-axis motor 408, the stud 407, the threaded rod 402, the slide bar 410 and the belt 406, the clamping cylinder 503 is controlled so that the injection mold 7 synchronously completes the center positioning in the front-back direction, and the double-axis motor 408 is started. The double-axis motor 408 synchronously drives the stud 407 and the threaded rod 402 to rotate through the slide bar 410 and the belt 406, so that the slider 403 inside the same frame can be driven to move inward synchronously, and then the slider 403 can drive the clamping claw 411 to move inward synchronously until the lateral center positioning of the injection mold 7 is completed, effectively avoiding the clamping process of multiple molds not being carried out at the same time, resulting in the vibration generated during the subsequent clamping will easily cause a certain impact on the clamping position that has completed the positioning, and then it is easy to cause the problem of unsatisfactory positioning effect; Through the coordination among the threaded rod 402, the double-headed stud 407, the dual-axis motor 408 and the belt 406, the dual-axis motor 408 is started, and the dual-axis motor 408 synchronously drives the double-headed stud 407 and the threaded rod 402 to rotate through the slide bar 410 and the belt 406, so that multiple double-headed studs 407 and threaded rods 402 share the same power source, namely the dual-axis motor 408. In this way, the design cost is greatly reduced and the problem of difficulty in designing multiple power sources to coordinate with each other is no longer a problem.

[0024] Working principle: When the injection molding device for processing the housing of an electric tool is needed, first, the user aligns the device at the loading position of the injection mold 7 corresponding to the robot or manual operation. Subsequently, the robot or manual operation pushes the injection molds 7 required for the housing of the electric tool toward the center in groups of three from one side of the processing platform 1, and finally aligns the three injection molds 7 roughly directly below the corresponding injection molding heads 6. Then, the clamping cylinder 503 is controlled so that the output portion of the clamping cylinder 503 drives the main frame 508, the side frame 505 and the center frame 507 to move backward synchronously, thereby squeezing the injection molds 7 at the three positions at the same time, and the front side frame 505 and the center frame 507 limit the rear side through the rear bracket 2 to limit the position, so that the injection mold 7 completes the center positioning in the front-to-back direction, and then the dual-axis motor 408 is started so that the dual-axis electric The machine 408 drives the stud 407 and the threaded rod 402 to rotate synchronously through the slide bar 410 and the belt 406, so that the slider 403 inside the same frame can be driven to move inward synchronously, and then the slider 403 can drive the clamping claw 411 to move inward synchronously until the lateral center positioning of the injection mold 7 is completed. In this way, it can be ensured that the injection mold 7 is aligned directly below the injection head 6. Compared with the prior art, most of its injection molding equipment is controlled by a power source to perform the center positioning and clamping process of the injection mold one by one during the placement of the injection mold. Although it can also achieve the center positioning of three groups, since the clamping process of multiple molds is not carried out at the same time, the vibration generated during the subsequent clamping will easily cause a certain impact on the clamping place that has completed the positioning, which will easily cause the problem of unsatisfactory positioning effect; Therefore, the present case designs a positioning component 4 to control the clamping cylinder 503 so that the injection mold 7 can synchronously complete the center positioning in the front and rear directions, and start the dual-axis motor 408. The dual-axis motor 408 synchronously drives the double-headed stud 407 and the threaded rod 402 to rotate through the slide bar 410 and the belt 406, so as to drive the slider 403 inside the same frame to move inward synchronously, and then the slider 403 can drive the clamping claw 411 to move inward synchronously until the lateral center positioning of the injection mold 7 is completed, which effectively avoids the clamping process of multiple molds not being carried out at the same time, resulting in the vibration generated during the subsequent clamping will easily cause a certain impact on the clamping place that has completed the positioning, and then it is easy to cause the problem of unsatisfactory positioning effect.

[0025] At the same time, in the prior art, the center positioning and clamping process of the injection mold is controlled one by one by a power source, so it is necessary to install a power source at the position of each injection mold respectively, which not only increases the equipment cost, but also easily leads to low coordination and higher equipment failure rate. Therefore, the present case designs a dual-axis motor 408 and a belt 406, so that when the dual-axis motor 408 is started, the dual-axis motor 408 synchronously drives the double-headed stud 407 and the threaded rod 402 to rotate through the slide bar 410 and the belt 406, so that multiple double-headed studs 407 and threaded rods 402 share the same power source, namely the dual-axis motor 408. In this way, the design cost is greatly reduced and the problem of difficulty in coordinating multiple power sources is no longer required.

[0026] After the center positioning of the injection mold 7 is completed, the output shaft of the lifting cylinder 302 can be controlled to extend, so that the end of the output shaft of the lifting cylinder 302 is against the cone bucket 301 (the output shaft of the lifting cylinder 302 adopts a flat structure, and when it is against the inside of the cone bucket 301, there is still a certain gap at the through hole of the cone bucket 301), so that the cone bucket 301 drives the injection head 6 to move downward and press on the injection head of the injection mold 7, and then the molten plastic is injected through the cone bucket 301, and the molten plastic is injected into the interior of the injection mold 7 through the injection head 6. After the injection is completed, the lifting cylinder 302 is controlled to extend. The output shaft of the lifting cylinder 302 is retracted, so that the spring 306 pushes the cone bucket 301 to reset, and the output shaft of the lifting cylinder 302 is separated from the inner wall of the cone bucket 301. At the same time, the clamping cylinder 503 is controlled to drive the main frame 508, the side frame 505 and the center frame 507 to move forward synchronously, so that the position of the clamping claw 411 moves forward and no longer blocks the lateral movement range of the injection mold 7. The injection mold 7 can then be taken out by a robot or manually. Repeating the above operations can achieve continuous injection molding of the injection mold 7.

[0027] During specific use, it is usually necessary to adjust the relative distances of the three injection molds 7 in the same group according to the lateral dimensions of the injection mold 7, and thus the relative distances of the three injection heads 6 also need to be adjusted. The adjustment process of the prior art is shown in the adjustment component 3 in the figure, that is, the upper rotating wheel 304 rotates to drive the vertical bolt 310 to rotate and drive the sliding platform 305 to move up and down to a suitable height, and then the side rotating wheel 307 rotates to drive the horizontal screw 311 to rotate and drive the movable plates 309 and movable frames 303 on both sides to move inward or outward synchronously, thereby adjusting the relative distances between the three injection heads 6.

[0028] However, in the prior art, after adjusting the relative distance between the three injection heads 6, the operator is still required to manually adjust the positioning clamping structure to ensure that the center positioning position corresponds to the injection head position. However, manual operation is prone to low accuracy, and the secondary manual operation increases the burden on the operator and the process is slow. Therefore, the present case designs a linkage component 5. During the lateral movement of the movable frame 303, the movable frame 303 can drive the corresponding side frame 505 to move synchronously outward or inward through the sliding rod 3 509, the sliding sleeve 506 and the column 501, so that the center of the side frame 505 is always It is consistent with the center position of the injection head 6, so that the accuracy of the center positioning can still be guaranteed during the center positioning after the position adjustment (after the position of the side frame 505 is adjusted, the extension and retraction degree of the slide bar 410 inside the main shaft 409 is adjusted, but it is still in the sliding and locking degree. Therefore, when the dual-axis motor 408 is started again, the rotation between the main shaft 409 and the stud 407 can still be transmitted through the slide bar 410), which effectively avoids the need for the operator to manually perform relative adjustment of the positioning and clamping structure, resulting in manual operation that is prone to low accuracy, and the secondary manual operation increases the burden on the operator and the process is slower.

[0029] Although the invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An injection molding device for processing a power tool housing, comprising a processing platform (1) and a rear support (2), characterized in that: The four corners of the lower end of the processing platform (1) are fixedly connected with support feet (8); the center of the inner wall of the processing platform (1) is equidistantly connected to a plurality of conveying rollers (10); a plurality of injection molds (7) are equidistantly placed on the upper part of the conveying rollers (10); an adjustment component (3) is installed inside the rear bracket (2); the adjustment component (3) is connected to an injection head (6); the adjustment component (3) can synchronously adjust the distance between the three injection heads (6); a linkage component (5) is installed on the front side of the upper end of the processing platform (1); the linkage component (5) enables the injection mold (7) to synchronously complete the center positioning in the front and rear directions; positioning components (4) are installed on the left and right parts of the front side of the outer wall of the injection mold (7); the positioning component (4) enables the injection mold (7) to synchronously complete the lateral center positioning; the linkage component (5) is connected to the adjustment component (3) and the positioning component (4); when the position of the injection head (6) is adjusted, the position of the positioning component (4) can be synchronously adjusted.

2. The injection molding equipment for processing a power tool housing according to claim 1, characterized in that: The adjustment assembly (3) comprises a cone bucket (301), a lifting cylinder (302), a movable frame (303), an upper rotating wheel (304), a sliding platform (305), a spring (306), a side rotating wheel (307), a vertical sliding rail (308), a movable plate (309), a vertical bolt (310), a horizontal screw rod (311) and a sliding rod (312); The plurality of vertical slide rails (308) are respectively fixedly connected to the left and right parts of the inner wall of the rear bracket (2) at the front and rear sides; the upper part of the outer wall of the vertical slide rail (308) is slidably connected to a sliding platform (305); the upper center of the upper part of the sliding platform (305) is rotatably connected to a vertical bolt (310); the upper part of the outer wall of the vertical bolt (310) is threadedly connected to the rear bracket (2); and the end of the vertical bolt (310) is fixedly connected to an upper rotating wheel (304); the upper and lower sides of the inner wall of the sliding platform (305) are fixedly connected to a sliding rod 1 (312); the inner walls of the movable plates (309) on both sides are slidably connected to the sliding rod 1 (312); the inner walls of the movable plates (309) at the center are fixedly connected to the sliding rod 1 (312); The side is fixedly connected to the sliding rod (312), and the inner wall center of the central movable plate (309) is rotatably connected to a horizontal screw (311), the outer side of the outer wall of the horizontal screw (311) is threadedly connected to the movable plates (309) on both sides, the outer ends of the horizontal screws (311) are fixedly connected to side rotating wheels (307), the front sides of the outer walls of the movable plates (309) are fixedly connected to movable frames (303), the upper ends of the movable frames (303) are fixedly connected to lifting cylinders (302), the output shaft ends of the lifting cylinders (302) are tightly pressed against a cone bucket (301), and the lower part of the outer wall of the cone bucket (301) is movably connected to the movable frame (303) through a spring (306).

3. The injection molding equipment for processing a power tool housing according to claim 2, characterized in that: The lower end of the cone bucket (301) is fixedly connected to an injection head (6), and the cone bucket (301) is in communication with the injection head (6).

4. The injection molding equipment for processing a power tool housing according to claim 1, characterized in that: A rear bracket (2) is fixedly connected to the rear side of the upper end of the processing platform (1), and both sides of the front end of the rear bracket (2) are fixedly connected to the processing platform (1) via inclined beams (9).

5. The injection molding equipment for processing a power tool housing according to claim 1, characterized in that: The linkage assembly (5) comprises a column (501), a baffle (502), a pressing cylinder (503), a front bracket (504), a side frame (505), a sliding sleeve (506), a central frame (507), a main frame (508), a sliding rod (509) and a horizontal sliding rail (510); The front ends of the main bodies of the plurality of clamping cylinders (503) are fixedly connected to the processing platform (1) via a front bracket (504); the ends of the output shafts of the clamping cylinders (503) are fixedly connected to the center frame (507); the upper end of the center frame (507) is fixedly connected to a main frame (508); the inner walls on both sides of the outer wall of the main frame (508) are slidably connected to transverse slide rails (510); the ends of the transverse slide rails (510) are fixedly connected to side frames (505); the upper centers of the side frames (505) are fixedly connected to the sliding sleeves (506) via columns (501); the inner walls of the sliding sleeves (506) are slidably connected to a sliding rod three (509); the front and rear sides of the sliding rod three (509) are respectively fixedly connected to the baffle (502) and the movable frame (303).

6. The injection molding equipment for processing a power tool housing according to claim 5, characterized in that: The side frames (505) and the center frame (507) on both sides are distributed at positions close to the upper center and slightly below the center on both sides.

7. The injection molding equipment for processing a power tool housing according to claim 1, characterized in that: The positioning assembly (4) comprises a second sliding rod (401), a threaded rod (402), a sliding block (403), a pad (404), a sleeve (405), a belt (406), a stud (407), a dual-axis motor (408), a main shaft (409), a sliding bar (410) and a clamping claw (411); The dual-axis motor (408) is fixedly connected to the front end center of the outer wall of the main frame (508), and the output shafts on both sides of the dual-axis motor (408) are fixedly connected to the main shaft (409). The plurality of slide bars (401) are respectively slidably connected to the inner walls of the side frames (505) and the center frame (507). The outer walls of the slide bars (401) are slidably connected to the sliders (403), and the front sides of the outer walls of the sliders (403) are fixedly connected to the clamping claws (411). The front ends of the outer walls of the sliders (403) are fixedly connected to the sleeves (405), and the inner wall of the upper sleeve (405) is threadedly connected to the studs (407), and the two sides of the studs (407) are connected by bearings. The sleeve (405) is rotatably connected to the side frame (505); the inner wall thread of the sleeve (405) below is provided with a threaded rod (402); both sides of the threaded rod (402) are rotatably connected to the center frame (507) via bearings; the outer wall of the inner rotating shaft of the stud (407) is fixedly connected with a plurality of slide bars (410); the outer wall of the slide bar (410) is slidably connected to the inner wall sliding groove of the main shaft (409); the inner rotating shaft pulley of the threaded rod (402) is rotatably connected to the outer wall end pulley of the main shaft (409) via a belt (406); and the rear end centers of the main frame (508), the side frame (505) and the center frame (507) are fixedly connected with a pad (404).

8. The injection molding equipment for processing a power tool housing according to claim 7, characterized in that: The rear side of the outer wall of the backing plate (404) is in contact with the injection mold (7), and the contact portions between the backing plate (404) and the injection mold (7) are relatively smooth.

Citation Information

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