A replaceable jig plug injection overmolding stripping machine

Abstract

The utility model discloses a plug injection molding rubber coating stripping machine of replaceable jig relates to plug production equipment technical field. The equipment includes jig replacement and positioning clamping module, multidimensional transfer module, cutting execution module and control and interactive module, realizes jig quick replacement through standardization interface, and adapts USB, type C, DC and a variety of plugs, the cutting execution module contains skin cutting blade assembly, blade driving part and bidirectional transmission part, and the blade support of skin cutting blade assembly is connected with bidirectional transmission part screw thread cooperation, and blade driving part and bidirectional transmission part coaxial transmission connection, and blade driving part drives bidirectional transmission part rotation and drives blade assembly radial opening and closing, and PLC program control system coordinates each module action: after artificial feeding, equipment automatically completes clamping fixed, removes and sends to cutting position, blade adjustment, horizontal cutting and reset, and finally realizes injection molding rubber coating stripping. The utility model solves the low efficiency of prior art, poor safety, the problem of insufficient versatility, has the characteristics of strong adaptability, high efficiency, safe and reliable, is applicable to the heavy processing of various plugs, reduces production cost, and promotes production flexibility.

Description

Technical Field

[0001] This utility model relates to the technical field of plug manufacturing equipment, specifically to a plug injection molding overmolding peeling machine with replaceable fixtures, which is suitable for peeling the injection molding overmolding of various plugs (such as USB, Type-C, DC plugs, etc.) when the injection molding is defective, so as to realize the secondary use of the plug. Background Technology

[0002] In the production of various plugs (including but not limited to USB, Type-C, DC plugs, etc.), injection molding is a critical process. Due to factors such as materials and processes, injection defects (such as air bubbles, insufficient glue, deformation, etc.) are prone to occur. To reduce costs, defective plugs need to be reworked. The core step is to peel off the injection-molded overlay of the plug and then perform a second injection molding.

[0003] In existing technologies, this type of processing relies on manual peeling with a blade or the use of specialized equipment (such as peelers that are only compatible with USB), which has the following drawbacks:

[0004] Manual processing is inefficient, labor-intensive, and can easily scratch the internal structure of the plug or the operator.

[0005] Specialized equipment is only compatible with a single type of plug. When producing multiple types of plugs, multiple machines need to be purchased, which results in high costs and poor versatility.

[0006] The lack of automated stripping equipment that can flexibly adapt to different plugs has constrained the need for flexibility in plug production. Summary of the Invention

[0007] The purpose of this invention is to solve the problems of poor versatility (only adaptable to a single plug), low efficiency of manual processing, and safety hazards in the existing plug injection molding and overmolding stripping equipment. It provides a plug injection molding and overmolding stripping machine with interchangeable fixtures, which can adapt to different types of plugs by changing the fixtures, realize automated stripping, improve efficiency and reduce costs.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0009] A plug injection molding overmolding peeling machine with replaceable fixtures includes a fixture replacement and positioning clamping module, a multi-dimensional transfer module, a cutting execution module, and a control and interaction module. The fixture replacement and positioning clamping module includes a replaceable fixture, a product pressing block, and a standardized interface component. The replaceable fixture has a positioning groove adapted to the plug to be processed, and its bottom is detachably connected to a fixture mounting plate via a nut. The product pressing block is located directly above the replaceable fixture and is connected to a clamping drive component, allowing it to move up and down to cooperate with the replaceable fixture in clamping or releasing the plug.

[0010] Multi-dimensional transfer module: includes a fixture slide rail, a lifting drive component and a horizontal transfer component; the fixture slide rail cooperates with a replaceable fixture to provide it with vertical movement guidance; the lifting drive component is connected to the replaceable fixture and drives it to move up and down along the fixture slide rail to transfer it to the cutting position; the horizontal transfer component is connected to the bottom of the replaceable fixture and drives it to move horizontally to cooperate with the cutting action.

[0011] Cutting execution module: includes a peeling blade assembly, a blade driver and a bidirectional transmission component; the peeling blade assembly includes two symmetrical blades, and the blade support is threadedly connected to the bidirectional transmission component; the blade driver is coaxially connected to the bidirectional transmission component, and the blade driver drives the bidirectional transmission component to rotate, thereby causing the blade assembly to open and close radially.

[0012] Control and Interaction Module: Includes a PLC program control system, a start button, a touch screen, and a solenoid valve group; the PLC program control system is electrically connected to the start button, touch screen, solenoid valve, blade drive, and horizontal transfer component, respectively, receiving signals and controlling the timing of each module's actions; the solenoid valve is pneumatically connected to the pressing drive and lifting drive components, controlling their extension and retraction actions;

[0013] Each module works together to peel off the plug injection molding coating. The peeling process is as follows:

[0014] Fixture replacement: Install the replaceable fixture for the adapter plug onto the main body of the equipment using nuts;

[0015] Material loading and positioning: The plug is manually placed into the positioning slot of the replaceable fixture and the start button is pressed;

[0016] Clamping and fixing: PLC controls the solenoid valve group to drive the clamping drive component, and the product lower pressure block moves down to cooperate with the replaceable fixture to clamp the plug;

[0017] Lifting and conveying: The lifting drive unit moves the replaceable fixture down the fixture slide rail to the corresponding position of the cutting execution module;

[0018] Cutting preparation: The blade drive unit drives the cutting blade assembly to retract to the preset cutting size through the bidirectional transmission component;

[0019] Horizontal cutting: The horizontal conveyor moves the replaceable fixture and plug horizontally forward, and the cutting blade assembly cuts the injection-molded overmolding.

[0020] Reset and material handling: The horizontal conveyor drives the fixture to reset, the blade assembly opens, the lifting drive drives the fixture to move upward and reset, the product pressure block is released, and the processed plug is manually removed.

[0021] In this embodiment, the standardized interface component preferably includes a fixture mounting plate, which is fixed to the main body of the equipment to achieve quick positioning and locking of the replaceable fixture.

[0022] In this embodiment, the lifting drive and pressing drive of the multi-dimensional transfer module are preferably dual-axis cylinders, and the horizontal transfer component is a servo slide.

[0023] In this embodiment, the bidirectional transmission component of the cutting execution module is a left-right helical lead screw, and the blade drive component is a servo motor.

[0024] In this embodiment, preferably, the touch screen of the control and interaction module pre-stores cutting parameters for different plugs. The cutting parameters include cutting size and blade opening / closing amount, which can be called up with one click by the PLC program control system.

[0025] Replaceable fixture: It connects to the main body of the equipment through a standardized interface, making replacement convenient; the base support of the fixture is designed with a positioning groove adapted to the plug type (such as USB, Type-C, DC, etc.) to ensure stable placement of different plugs;

[0026] Universal control: The PLC program control system has multiple sets of cutting parameters (corresponding to the injection molding thickness of different plugs) pre-stored. After changing the fixture, the parameters can be quickly recalled via the touch screen without the need for re-adjustment.

[0027] Automated process: After manually placing the plug into the replaceable fixture, press the start button, and the equipment will complete the entire process of "clamping and positioning → transferring to the cutting position → blade retraction → cutting → resetting" in sequence. It is suitable for all types of plugs.

[0028] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0029] First, it is highly versatile: by changing the fixture, it can be adapted to various plugs such as USB, Type-C, and DC, eliminating the need to purchase separate equipment for different plugs and reducing equipment investment costs;

[0030] Secondly, it is highly efficient: the automated stripping process makes a single machine 5-8 times more efficient than manual labor, and the repeatability accuracy meets the standards, avoiding the instability of manual operation.

[0031] Third, it is safe: the whole process is automated, with no human contact with the blade, completely avoiding the risk of workplace injury;

[0032] Fourth, flexible production: It supports quick fixture changes and parameter calls to adapt to the needs of producing multiple varieties and small batches of plugs. Attached Figure Description

[0033] Figure 1 is a three-dimensional external view of the entire machine of this application;

[0034] Figure 2 is a three-dimensional schematic diagram of the internal assembly of the whole machine in this application;

[0035] Figure 3 is a partial enlarged view of the fixture replacement and positioning clamping module;

[0036] Figure 4 is a schematic diagram of the connection between the cutting execution module and the bidirectional lead screw.

[0037] Brief explanation of the reference numerals in the attached figures:

[0038] Module mounting plate 1, shock-absorbing and anti-slip feet 2, replaceable fixture 3, product pressure block 4, cylinder 5, fixture mounting plate 6, fixture slide rail 7, servo slide table 8, blade assembly 9, linear slide rail 10, servo motor 11, left and right double-acting lead screw 12, coupling 13, lead screw fixing seat 14, sensor plate 15, lead screw support seat 16, solenoid valve 17, servo driver 18, upper guard 19, lower guard 20, touch screen 21, blade guard plate 22, button box 23, emergency stop button 24, power button 25, start button 26. Detailed Implementation

[0039] The following, in conjunction with Figure 1 (external three-dimensional schematic diagram of the whole machine), Figure 2 (internal three-dimensional schematic diagram of the whole machine assembly), Figure 3 (enlarged view of the fixture replacement and positioning clamping module), and Figure 4 (transmission schematic diagram of the cutting execution module), provides a detailed description of the components and working process of this utility model:

[0040] Please see Figure 1-2 The figure shows a plug injection molding overmolding peeling machine with replaceable fixtures. The overmolding peeling machine is based on the module mounting plate (1) and supported on the ground by four shock-absorbing and anti-slip feet (2). The shock-absorbing and anti-slip feet are made of rubber to ensure that the mechanism will not shift as a whole due to the movement of internal parts during operation.

[0041] Please refer to Figures 1-3. The adhesive peeling machine uses the fixture mounting plate (6) as its core to realize the positioning, clamping, lifting, and conveying of the plug. The bottom is rigidly connected to the fixture slide rail (7), and the middle side is hinged to the piston rod (not shown) of the cylinder (5). The upper part is connected to the replaceable fixture (3) through a nut. The fixture slide rail (7) is vertically fixed to the left side of the module mounting plate (1). The slide rails are distributed in parallel and extend in the vertical direction. Its slider is connected to the bottom of the fixture mounting plate (6) through bolts, providing vertical guidance and constraint for the fixture mounting plate (6). The precise cooperation between the slide rail and the slider ensures that the fixture mounting plate (6) drives the replaceable fixture (3). There is no lateral deviation during lifting; the cylinder (5) is vertically fixed to the upper crossbeam of the module mounting plate (1), located directly above the replaceable fixture (3), the cylinder axis coincides with the center line of the product lower pressure block (4), and is connected to the solenoid valve (17) through the air pipe, and receives the PLC control signal through the wire. The end of the piston rod (not shown) is connected to the product lower pressure block (4); the product lower pressure block (4) is provided directly above the replaceable fixture (3), and the top is connected to the piston rod (not shown) of the cylinder (5) through the floating joint. It moves up and down with the extension and retraction of the cylinder. The product lower pressure block (4) and the replaceable fixture (3) cooperate to form an "up and down clamping" structure.

[0042] Please see Figure 1 , 2 4. The middle cutting drive system of the rubber peeling machine is based on the module mounting plate (1) and horizontally arranged with servo slide (8) and linear slide rail (10) to form the core transmission and guidance system for cutting action: servo slide (8) serves as the power source for jig transfer. Its fixed end is rigidly connected to the module mounting plate (1) by bolts (not shown), and the moving end is fastened to the bottom of the jig mounting plate (6) by bolts (not shown). It is connected to the servo driver (18) through electrical wires to receive control signals and drive the jig system to move accurately in the horizontal direction, providing cutting feed action for the blade assembly (9); the blade bracket of the blade assembly (9) is machined with nut holes (not shown) on the upper part, which are threadedly connected to the left and right double-acting lead screw (12) horizontally mounted above the slide rail; the left end of the lead screw is positioned by the lead screw support seat (16), and the right end is coaxially connected to the output shaft of the servo motor (11) through the coupling (13). The two ends are respectively connected by the lead screw support seat (16) and the lead screw fixing seat (14). The bearing assembly is constrained, and when the servo motor rotates, it drives the bidirectional lead screw to rotate synchronously, which in turn drives the blade support to move synchronously in the opposite direction, thus realizing stepless adjustment of the blade opening and closing size.

[0043] To ensure operational safety, one blade guard plate (22) is vertically fixed on the outside of the blade assembly (9) on each side to cover the blade movement area, thus preventing accidental contact by personnel through physical isolation; the right side of the mounting base is fixed with bolts to the sensor plate (15), which moves synchronously with the blade. When it reaches the limit position, it triggers the photoelectric sensor signal to achieve overtravel protection.

[0044] Please see Figure 1 , 2 3. The drive and control system of the rubber peeling machine is equipped with a servo motor (11), a servo driver (18), and a solenoid valve (17). The servo motor (11) is fixed on the right side of the module mounting plate (1), with its output shaft facing to the left and coaxial with the left and right rotating bidirectional lead screw (12). It is connected to the servo driver (18) through a cable to receive drive signals and provide power for the opening and closing of the blade assembly (9). The servo driver (18) is installed on the electrical mounting plate inside the upper cover (19). Its signal input terminal is connected to the PLC integrated on the electrical board through wires to receive digital control commands such as cutting size and conveying speed. The output terminal is connected to the servo motor (11) and the servo slide (8) respectively, converting the PLC commands into motor speed signals and slide displacement signals. At the same time, it collects the operating data such as motor current and slide position in real time and feeds them back to the PLC to realize closed-loop control and ensure the synchronization of cutting and conveying actions. The pneumatic actuator control is achieved by the solenoid valve (17), which is located inside the lower cover (20). Its air source input end is connected to an external compressed air source (not shown) through an air pipe, and its output end is connected to the cylinder (5) through an air pipe. The control end is connected to the PLC output module through a wire. The solenoid valve (17) can switch the air path according to the PLC timing instructions to accurately control the extension and retraction of the cylinder and realize the automated action of plug clamping and fixture lifting.

[0045] Please see Figure 1 , 2 The rubber peeling machine is equipped with an upper protective cover (19) and a lower protective cover (20) protection system to effectively protect the internal electrical components from dust pollution. The human-machine interaction module consists of a touch screen (21) and a button box (23). The touch screen (21) communicates with the PLC via an RS485 bus and supports parameter setting and operation status display. The button box (23) is equipped with an emergency stop button (24), a rotary power button with an indicator light (25), and a green start button with an indicator light (26). It is connected to the PLC input terminal through wires. The operator can start the equipment with one key. In case of emergency, pressing the emergency stop button can immediately cut off the power output, taking into account both operation convenience and safety.

[0046] The following uses a "USB plug" as an example to illustrate the specific application of this invention:

[0047] Replaceable fixture for installing USB plug: Installation is completed by positioning with a nut;

[0048] Call the "USB plug" parameter group on the touchscreen;

[0049] The defective USB plug is manually placed into the base support of the fixture, and the start button is pressed. The equipment automatically completes the peeling process. After peeling, the USB plug can be directly used for secondary injection molding.

[0050] In the above examples, the descriptions of each implementation case have their own emphasis. For parts that are not described or recorded in detail in a certain implementation case, please refer to the relevant descriptions in other embodiments.

[0051] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A plug injection molding overmolding peeling machine with replaceable fixtures, comprising a fixture replacement and positioning clamping module, a multi-dimensional transfer module, a cutting execution module, and a control and interaction module, characterized in that: Fixture replacement and positioning clamping module: includes a replaceable fixture, a product pressing block, and a standardized interface component; the replaceable fixture is provided with a positioning groove that is compatible with the plug to be processed, and the bottom is detachably connected to the fixture mounting plate by a nut; the product pressing block is located directly above the replaceable fixture, is connected to the clamping drive component, and can move up and down to cooperate with the replaceable fixture to clamp or release the plug. Multi-dimensional transfer module: includes a fixture slide rail, a lifting drive component and a horizontal transfer component; the fixture slide rail cooperates with a replaceable fixture to provide it with vertical movement guidance; the lifting drive component is connected to the replaceable fixture and drives it to move up and down along the fixture slide rail to transfer it to the cutting position; the horizontal transfer component is connected to the bottom of the replaceable fixture and drives it to move horizontally to cooperate with the cutting action. Cutting execution module: includes a peeling blade assembly, a blade driver and a bidirectional transmission component; the peeling blade assembly consists of two symmetrical blades, and the blade support is threadedly connected to the bidirectional transmission component; the blade driver is coaxially connected to the bidirectional transmission component, and the blade driver drives the bidirectional transmission component to rotate, thereby causing the blade assembly to open and close radially. Control and Interaction Module: Includes a PLC program control system, a start button, a touch screen, and a solenoid valve group; the PLC program control system is electrically connected to the start button, touch screen, solenoid valve, blade drive, and horizontal transfer component, respectively, receiving signals and controlling the timing of each module's actions; the solenoid valve is pneumatically connected to the pressing drive and lifting drive components, controlling their extension and retraction actions.

2. The peeling machine according to claim 1, characterized in that: The standardized interface component includes a fixture mounting plate, which is fixed to the main body of the equipment to enable quick positioning and locking of replaceable fixtures.

3. The peeling machine according to claim 1, characterized in that: The lifting and pressing drive components of the multidimensional transfer module are dual-axis cylinders, and the horizontal transfer component is a servo slide.

4. The peeling machine according to claim 1, characterized in that: The bidirectional transmission component of the cutting execution module is a left-right rotating bidirectional lead screw, and the blade driving component is a servo motor.

5. The peeling machine according to claim 1, characterized in that: The touchscreen of the control and interaction module pre-stores cutting parameters for different plugs. These cutting parameters include cutting size and blade opening / closing amount, and can be recalled with a single click by the PLC program control system.

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