A press-fit assembly device for washing machine control panel production

Abstract

The present application relates to screen assembly related technical field, disclose a kind of pressing assembly equipment for washing machine control panel production, to solve the problem that screen substrate is pressed unevenly when being pressed when decorative surface shell is suspended locally, vacuum pump is used to suck negative pressure bottom disc inner cavity, when washing machine control panel surface shell is placed on bottom die, the bottom of surface shell is sucked using negative pressure, so that surface shell can be attached on bottom die. After surface shell is normally placed, negative pressure bottom disc is further sucked to positioning cylinder body, and positioning piston rod is used to pull positioning sliding block, so that it is resisted to the outside of faceplate, the side of surface shell is realized to be pressed and limited. Similarly, if surface shell is not normally placed, leading to direct communication between external air and negative pressure bottom disc inner cavity, negative pressure bottom disc will directly suck the air of external environment, positioning sliding block will not be close to surface shell, thus, negative pressure limiting fixation of surface shell is realized.

Description

Technical Field

[0001] This invention relates to the field of screen assembly technology, and in particular to a pressing and assembly device for manufacturing washing machine control panels. Background Technology

[0002] The pressing and assembly of the washing machine control panel is a process in which multiple components such as the decorative shell, PCB circuit board and backlight module are stacked and positioned in sequence, and then a set pressure is applied by a hot press fixture to melt and bond the adhesive between the layers or to achieve a firm bond through ultrasonic welding.

[0003] According to the search, CN208831426U discloses an electronic device screen pressing fixture, which includes a bracket, a pressing plate assembly and a driving mechanism. The sliding plate of the pressing plate assembly is driven to reciprocate in the slide groove of the bracket through the linkage assembly, and the stroke of the pressing plate assembly is precisely controlled by the scale on the sliding rod as a reference coordinate, so that the screen of the electronic device and the housing can be better bonded together.

[0004] However, in actual production, when the decorative shell is placed on the bottom mold, operators cannot visually determine whether it is completely attached to the bottom mold surface. When the decorative shell is suspended due to local areas not being tightly attached, although the subsequently stacked screen substrate has been initially positioned, uneven support at the bottom layer causes uneven stress on different areas of the panel when the top mold descends to press, and local stress concentration can easily lead to defects such as edge chipping and cracks in the screen substrate, affecting product yield. Summary of the Invention

[0005] This invention proposes a pressing and assembly equipment for the production of washing machine control panels, which has the advantages of negative pressure adsorption and limiting and autonomous pressing, in order to solve the problem of uneven force on the screen substrate during pressing due to the partial suspension of the decorative shell mentioned in the background art.

[0006] To achieve the above objectives, this application adopts the following technical solution: a pressing and assembly equipment for producing a washing machine control panel, comprising: a bottom mold, with a pressing cylinder for driving the top mold to move fixedly installed on its side; a fixed positioning frame, fixed on one side of the bottom mold surface, used to limit the front shell of the washing machine control panel; a negative pressure base, connected to a vacuum pump, fixedly fixed at the bottom of the bottom mold; a positioning slider, movably installed on the side of the bottom mold; a positioning cylinder, fixedly connected to the side of the negative pressure base, and a positioning piston rod is sealed and movably fitted inside the positioning cylinder, one end of the positioning piston rod being fixedly connected to the positioning slider, and a spring being fixedly connected between the positioning piston rod and the inner cavity of the positioning cylinder; the front shell of the washing machine control panel is placed on the surface of the bottom mold, the vacuum pump draws suction from the inner cavity of the negative pressure base, the front shell is subjected to negative pressure adsorption force to achieve tight fixation and limitation, and the pressure in the negative pressure base decreases, causing the positioning piston rod to drive the positioning slider to approach the side of the front shell, achieving pressure limitation.

[0007] Furthermore, a positioning indicator rod is installed on the surface of the positioning slider, and a positioning indicator hole is opened at the bottom of the top mold. After the positioning slider presses against and limits the outer side of the shell, the positioning slider drives the positioning indicator rod to move below the positioning indicator hole.

[0008] Furthermore, a pressure plate is fixedly installed on the side of the top mold.

[0009] Furthermore, a through hole is provided in the middle of the positioning piston rod to enable communication between the inner cavity of the positioning cylinder and the bottom inner cavity of the positioning slider.

[0010] Furthermore, the bottom of the positioning indicator rod is threadedly connected to an opening and closing ring cylinder, and a spring is provided between the opening and closing ring cylinder and the bottom of the positioning slider. When the spring is in free extension, the side of the opening and closing ring cylinder blocks and seals the through hole of the positioning piston rod.

[0011] Furthermore, an alarm whistle is fixedly installed at the bottom of the positioning slider, located below the opening and closing ring cylinder.

[0012] Furthermore, an air extraction pipe is fixedly installed on the surface of the fixed positioning frame, and an air supply pipe is opened at the bottom of the top mold. The air extraction pipe and the air supply pipe are sealed together. A detection piston located on one side of the positioning indicator hole is movably installed on one side of the top mold. A pull claw is fixedly installed at the end of the detection piston, and a spring is provided between the pull claw and the top mold.

[0013] Furthermore, a connecting groove is provided in the middle of the top mold, and a rubber pressure plate is provided at the bottom of the top mold.

[0014] Furthermore, the pull claw is L-shaped, and a stepped block is provided at the top of the positioning indicator rod.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention provides a pressing and assembly device for manufacturing washing machine control panels. A vacuum pump draws suction from the inner cavity of a negative pressure chassis to achieve adaptive positioning and pressing protection of the control panel faceplate. Specifically, when the control panel faceplate is placed on the bottom mold, the vacuum pump draws suction from the inner cavity of the negative pressure chassis to create negative pressure, causing the bottom of the faceplate to fit tightly against the bottom mold. Furthermore, the negative pressure chassis further draws suction from the positioning cylinder, driving the positioning piston rod to pull the positioning slider to the outer side of the faceplate, achieving pressure limiting on the side of the faceplate and thus reliably fixing the faceplate.

[0017] If the faceplate is not properly positioned (e.g., suspended or offset), external air will directly connect to the inner cavity of the negative pressure chassis through the bottom of the faceplate. The negative pressure chassis will then draw in external air, and the positioning slider, lacking negative pressure traction, will be unable to approach the faceplate. Consequently, the positioning indicator rod and the positioning indicator hole on the top mold will misalign. During the downward pressing process of the top mold, the pressure plate on the top mold will press against the top of the positioning indicator rod. Restricted by the downward movement of the positioning indicator rod, the top mold cannot continue to descend, thus automatically preventing the pressing action before the faceplate is in place, effectively avoiding damage to the screen substrate due to pressing. Similarly, when the positioning slider normally reaches the outer side of the faceplate, the positioning indicator rod and the positioning indicator hole on the top mold are accurately aligned, allowing the top mold to descend smoothly and complete the pressing assembly of the faceplate and screen substrate on the bottom mold.

[0018] This invention utilizes a negative pressure system to simultaneously achieve the adsorption and positioning of the faceplate and the automatic detection of abnormal conditions. It can autonomously restrict the downward movement of the top mold when the faceplate is placed abnormally, thereby improving the bonding yield and protecting the screen substrate from damage. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0020] Figure 1 and Figure 2 This is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0021] Figure 3 This is a schematic diagram showing the installation positions and three-dimensional structure of each component on the bottom mold of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal planar cross-sectional structure of the bottom mold of the present invention;

[0023] Figure 5 This is a schematic diagram showing the installation positions and three-dimensional structure of each component in the positioning slider of the present invention;

[0024] Figure 6 This is a schematic diagram showing the installation positions and three-dimensional structure of the components on the top mold of the present invention;

[0025] Figure 7 For the present invention Figure 6 Enlarged structural diagram of the area at point E in the middle.

[0026] In the diagram: 1. Bottom mold; 2. Negative pressure chassis; 3. Fixed positioning frame; 4. Air extraction pipe; 5. Positioning slider; 6. Positioning indicator rod; 7. Top mold; 700. Positioning indicator hole; 701. Air supply pipe; 8. Pressing cylinder; 9. Pressure plate; 11. Positioning cylinder component; 110. Positioning piston rod; 12. Opening and closing ring cylinder; 13. Alarm whistle body; 14. Detection piston; 15. Pull claw. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1, please refer to Figures 1-4 It can be seen that the bottom mold 1 is fixedly placed in the required area using a bracket. A guide post is fixedly installed at the corner of the bottom mold 1. The top mold 7 is movably fitted with the guide post, and the top mold 7 can only move vertically up and down using the guide post. A pressing cylinder 8 is fixedly installed on the side of the bottom mold 1. The pressing cylinder 8 is connected to an air pump via a solenoid valve, and the output end of the pressing cylinder 8 is fixedly connected to the top mold 7. According to the control system, a start signal is sent to the solenoid valve, and the solenoid valve controls the direction of airflow to the pressing cylinder 8, thereby realizing the pressing cylinder 8 driving the top mold 7 to move up and down.

[0029] Combination Figure 3 and Figure 4 It can be seen that a fixed positioning frame 3, bolted to one side of the bottom mold 1, is mounted on it. The fixed positioning frame 3 is L-shaped. When the control panel's faceplate is placed on the surface of the bottom mold 1, the fixed positioning frame 3 can be used to position the two adjacent sides of the faceplate. Simultaneously, a negative pressure base plate 2 is fixedly mounted at the bottom of the bottom mold 1. The bottom of the negative pressure base plate 2 is connected to a vacuum pump via a solenoid valve. Figure 3 and Figure 4 It is clearly visible that the negative pressure chassis 2 has an upward opening. Under normal conditions, after the front cover of the washing machine control panel is placed on the surface of the bottom mold 1, the outer edge of the front cover will be pressed against the surface of the bottom mold 1. The front cover can block the upward opening area of ​​the negative pressure chassis 2. In this way, when the control system sends a signal to the solenoid valve, the solenoid valve opens and the vacuum pump sucks the air in the inner cavity of the negative pressure chassis 2, the air pressure in the inner cavity of the negative pressure chassis 2 decreases, forcing the outer edge of the front cover to be pressed against the surface of the bottom mold 1, thus ensuring that the outer edges of the front cover are relatively horizontally aligned. Conversely, if part of the front cover is suspended or misaligned, there will be a gap between the front cover and the bottom mold 1, and the external airflow will directly enter the inner cavity of the negative pressure chassis 2 through this gap.

[0030] Based on the above content, combined with Figures 2-4 It can be seen that there are positioning sliders 5 on the side of the bottom mold 1, which are guided and installed by the dovetail frame. The two positioning sliders 5 are arranged parallel to the adjacent side of the fixed positioning frame 3. At the same time, the side of the negative pressure chassis 2 is fixedly connected to the positioning cylinder 11, and the positioning piston rod 110 is sealed and movably installed inside the positioning cylinder 11. One end of the positioning piston rod 110 is fixedly installed at the bottom of the positioning slider 5. A spring is fixedly connected between the positioning piston rod 110 and the inner cavity of the positioning cylinder 11. Pushed by the spring force, the positioning piston rod 110 is forced to push the positioning slider 5 to always tend to move outward along the dovetail frame. Furthermore, the positioning slider 5 is equipped with a vertically arranged positioning indicator rod 6. Correspondingly, the bottom of the top mold 7 is provided with a positioning indicator hole 700. When the positioning slider 5 normally presses and limits the outer side of the shell, the positioning slider 5 will drive the positioning indicator rod 6 to move below the positioning indicator hole 700. In this way, the top mold 7 will not be obstructed when it moves downward. Similarly, if the positioning slider 5 does not press to the normal position, the pressure plate 9 fixedly installed on the side of the top mold 7 will abut against the top of the positioning indicator rod 6 during the downward movement of the top mold 7, and will be restricted downward by the positioning indicator rod 6, thereby preventing the top mold 7 from performing the downward pressing operation.

[0031] Specifically, in the actual application of this embodiment, the control system sends a control signal to the solenoid valve. After receiving the signal, the solenoid valve switches the flow direction of the air pump into the pressing cylinder 8, forcing the top mold 7 to move upward and relatively away from the bottom mold 1. Then, a robotic arm is used to place the face shell and the glued screen substrate on the surface of the bottom mold 1, and the fixed positioning frame 3 is used to limit the two sides of the face shell.

[0032] Secondly, the control system sends an electrical signal to the solenoid valve, opening it and connecting the vacuum pump to the negative pressure chassis 2. The vacuum pump then performs negative pressure suction on the inner cavity of the negative pressure chassis 2. If the faceplate is in place and there is no suspension around it, the negative pressure chassis 2's suction on the faceplate allows it to be negatively suctioned and limited at the bottom. Furthermore, the vacuum pump, by suctioning the inner cavity of the negative pressure chassis 2, simultaneously extracts air from the positioning cylinder 11, causing the positioning piston rod 110 to move to the left and compress the spring. (Direction reference...) Figure 4 As the positioning piston rod 110 pulls the positioning slider 5 closer to the bottom mold 1, until the positioning slider 5 reaches the outside of the face shell, it achieves pressure and limitation on the face shell. Furthermore, the moving positioning slider 5 causes the positioning indicator rod 6 to move below the positioning indicator hole 700. When the pressing cylinder 8 pulls the top mold 7 downwards, since the positioning indicator rod 6 can pass directly through the positioning indicator hole 700, the top mold 7 will press the screen substrate on the face shell, thus completing the pressing assembly work.

[0033] If a portion of the faceplate is suspended during placement, a gap will remain between the faceplate and the bottom mold 1. When the vacuum pump draws air from the inner cavity of the negative pressure chassis 2, external air will flow into the inner cavity through this gap, indicating that the faceplate is not properly positioned or has a structural defect. Subsequently, as the external air enters the inner cavity of the negative pressure chassis 2, it will relieve the pressure inside the cavity. Consequently, the positioning piston rod 110 will be unable to overcome the spring force, and under the action of the spring force, the positioning slider 5 will push the positioning indicator rod 6 away from the bottom mold 1. Finally, when the pressing cylinder 8 pulls the top mold 7 downward, the top mold 7 drives the pressure plate 9 downward synchronously. After the pressure plate 9 moves to the top of the positioning indicator rod 6, the positioning indicator rod 6 limits the downward movement of the pressure plate 9, preventing the top mold 7 from continuing to move downward. This prevents the top mold 7 from performing pressing assembly when the faceplate is suspended, thus avoiding damage to the screen substrate caused by forced pressing.

[0034] Example 2 is a supplement to Example 1; please refer to [link / reference]. Figure 4 and Figure 5 It can be seen that a through hole is provided in the middle of the positioning piston rod 110, enabling communication between the inner cavity of the positioning cylinder 11 and the bottom inner cavity of the positioning slider 5. Meanwhile, the bottom of the positioning indicator rod 6 is threadedly connected to an opening / closing ring cylinder 12, and a spring is provided between the opening / closing ring cylinder 12 and the bottom of the positioning slider 5. Under normal conditions, the spring force pushes the opening / closing ring cylinder 12, forcing it to push the positioning indicator rod 6 upwards until the spring is in a freely extended state. At this time, the side of the opening / closing ring cylinder 12 blocks and seals the through hole of the positioning piston rod 110. Furthermore, an alarm whistle 13 is fixedly installed at the bottom of the positioning slider 5, located below the opening / closing ring cylinder 12. When airflow passes through the alarm whistle 13, the alarm whistle 13 will emit a sound to provide an alarm.

[0035] In detail, in practical application of this second embodiment, under normal conditions, the opening and closing ring cylinder 12 blocks the through hole of the positioning piston rod 110, the positioning indicator rod 6 extends outward, and when the positioning slider 5 drives the positioning indicator rod 6 to move below the positioning indicator hole 700, the positioning indicator rod 6 is inserted into the positioning indicator hole 700, realizing the pressing operation mentioned in the first embodiment. During this process, the opening and closing ring cylinder 12 always blocks the through hole of the positioning piston rod 110, no airflow passes through the alarm whistle 13, and the alarm whistle 13 will not emit a sound.

[0036] If the faceplate becomes suspended, after the top mold 7 descends, the pressure plate 9 presses down the positioning indicator rod 6, forcing the positioning indicator rod 6 to push the opening and closing ring cylinder 12 downwards and compress the spring. When the opening and closing ring cylinder 12 descends and releases the obstruction of the through hole of the positioning piston rod 110, the through hole of the positioning piston rod 110 connects the inner cavity of the negative pressure chassis 2 with the inner cavity of the positioning slider 5. At this time, due to the suction of the vacuum pump on the inner cavity of the negative pressure chassis 2, some air flows from the gap between the faceplate and the bottom mold 1 into the inner cavity of the negative pressure chassis 2, and some airflow enters the inner cavity of the positioning slider 5 from the alarm whistle body 13 and enters the inner cavity of the negative pressure chassis 2 along the through hole of the positioning piston rod 110. During this process, the airflow passing through the alarm whistle body 13 will cause it to make a sound, so that while the positioning indicator rod 6 restricts the downward movement of the top mold 7, the alarm whistle body 13 will make a sound for alarm purposes.

[0037] Example 3 is a further improvement on Example 2, combining... Figure 1 , Figure 6 and Figure 7 It can be seen that a suction pipe 4 is fixedly installed at the corner of the fixed positioning frame 3, and the suction pipe 4 is connected to the vacuum pump through a solenoid valve. Correspondingly, a gas supply pipe 701 is opened at the bottom of the top mold 7 and is connected to its inner cavity. After the suction pipe 4 and the gas supply pipe 701 are fitted together, they form a sealed assembly. In this way, by utilizing the connection between the suction pipe 4 and the gas supply pipe 701, the vacuum pump can simultaneously suction the inner cavity of the top mold 7. Figure 6 As can be seen, a rectangular connecting groove is provided in the middle of the top mold 7, and a rubber pressure plate is provided at the bottom of the top mold 7. In this way, when the top mold 7 is pressed on the screen substrate, the rubber pressure plate can avoid hard contact between the top mold 7 and the screen substrate. More importantly, as the rubber pressure plate squeezes the surface of the screen substrate, it will isolate the inner cavity of the top mold 7 from the external environment.

[0038] Based on this, combined Figure 6 and Figure 7 It can be seen that a detection piston 14 is movably mounted on one side of the top mold 7, located on the side of the positioning indicator hole 700. A pull claw 15 is fixedly mounted on the end of the detection piston 14 near the positioning indicator hole 700. A spring is provided between the pull claw 15 and the top mold 7. Pushed by the spring force, the pull claw 15 is normally relatively far away from the positioning indicator hole 700. Furthermore, the pull claw 15 is L-shaped. Correspondingly, a stepped block is provided at the top of the positioning indicator rod 6. When the positioning indicator rod 6 is normally inserted into the positioning indicator hole 700, the pressing operation described in Embodiment 1 is achieved.

[0039] In detail, under normal conditions, the faceplate is placed on the surface of the bottom mold 1, and the positioning sliders 5 on both sides press and limit the outer side of the faceplate. If the faceplate is in place and not suspended, the positioning indicator rods 6 on the two positioning sliders 5 will move to below the positioning indicator hole 700 of the top mold 7. Otherwise, the alarm described in Embodiment 2 will occur.

[0040] After normal pressing, the descending top mold 7 will assemble the air supply pipe 701 and the air extraction pipe 4, and the connection between the air extraction pipe 4 and the air supply pipe 701 will allow the vacuum pump to evacuate the inner cavity of the top mold 7. As the top mold 7 continues to descend, the rubber pressure plate below the top mold 7 will press against the screen substrate, and the pressure of the top mold 7 on the screen substrate will press the screen substrate and the faceplate together. At the same time, because the rubber pressure plate is pressing on the screen substrate, the top mold 7 will be relatively isolated from the external environment. The negative pressure generated in the inner cavity of the top mold 7 has a tendency to attract the screen substrate. On the other hand, the detection piston 14 is pulled by the negative pressure, causing the pull claw 15 to overcome the spring force and hook onto the side of the positioning indicator rod 6. At this time, the hooking part is below the stepped groove of the positioning indicator rod 6.

[0041] Finally, after the adhesive between the faceplate and the screen substrate cools and solidifies, they bond together. Then, the pressing cylinder 8 pushes the top mold 7 upwards, moving it away from the screen substrate. Due to the strong connection between the screen substrate and the faceplate, the top mold 7 is forcibly separated from the screen substrate as it rises. External air enters the cavity of the top mold 7, relieving its internal pressure. The detection piston 14, under the action of a spring, also causes the pull claw 15 to release its hook from the positioning indicator rod 6. As the top mold 7 continues to rise, the pressing of the panel is finally completed.

[0042] Similarly, if there is insufficient adhesive application between the screen substrate and the front cover, the front cover cannot move upwards due to the restriction imposed by the bottom mold 1, the two positioning sliders 5, and the negative pressure fixing. Therefore, when the top mold 7 moves the uncoated screen substrate upwards, the screen substrate and the front cover will separate. During the upward movement of the screen substrate by the top mold 7, the pressure inside the top mold 7 is always lower than the external environmental pressure. As a result, the pull claw 15 will always hook onto the outer side of the positioning indicator rod 6. When the top mold 7 moves the pull claw 15 upwards and reaches the stepped surface at the top of the positioning indicator rod 6, the pull claw 15 pulls the top of the positioning indicator rod 6 upwards, causing the positioning indicator rod 6 to pull the opening and closing ring cylinder 12 upwards synchronously. When the opening and closing ring cylinder 12 passes through the through hole of the positioning piston rod 110, the external airflow flows into the positioning slider 5 and the through hole of the positioning piston rod 110 through the alarm whistle 13, thereby causing the alarm whistle 13 to sound. In this way, it can be seen that this embodiment can effectively detect insufficient adhesive application between the front cover and the screen substrate and issue a warning.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pressing and assembly equipment for manufacturing a washing machine control panel, characterized in that, include: The bottom mold (1) has a pressing cylinder (8) fixedly installed on its side to drive the top mold (7) to move. The fixed positioning frame (3) is fixed on one side of the bottom mold (1) and is used to limit the front shell of the washing machine control panel; The negative pressure chassis (2) is connected to the vacuum pump and fixed to the bottom of the bottom mold (1); The positioning slider (5) is movably installed on the side of the bottom mold (1); The positioning cylinder (11) is fixedly connected to the side of the negative pressure chassis (2), and the positioning cylinder (11) is sealed and movablely fitted with a positioning piston rod (110). One end of the positioning piston rod (110) is fixedly connected to the positioning slider (5), and a spring is fixedly connected between the positioning piston rod (110) and the inner cavity of the positioning cylinder (11). The front panel of the washing machine control panel is placed on the surface of the bottom mold (1). The vacuum pump draws suction from the inner cavity of the negative pressure chassis (2), and the front panel is subjected to negative pressure adsorption force to achieve tight fixation. The pressure in the negative pressure chassis (2) is reduced, causing the positioning piston rod (110) to drive the positioning slider (5) to approach the side of the front panel to achieve pressure limit.

2. The pressing and assembly equipment for manufacturing washing machine control panels according to claim 1, characterized in that, The positioning slider (5) is equipped with a positioning indicator rod (6), and the bottom of the top mold (7) is provided with a positioning indicator hole (700). After the positioning slider (5) presses against the outer side of the shell and limits its movement, the positioning slider (5) drives the positioning indicator rod (6) to move to below the positioning indicator hole (700).

3. The pressing and assembly equipment for manufacturing washing machine control panels according to claim 2, characterized in that, A pressure plate (9) is fixedly installed on the side of the top mold (7).

4. The pressing and assembly equipment for manufacturing washing machine control panels according to claim 1, characterized in that, A through hole is provided in the middle of the positioning piston rod (110) to realize the communication between the inner cavity of the positioning cylinder (11) and the bottom inner cavity of the positioning slider (5).

5. The pressing and assembly equipment for manufacturing washing machine control panels according to claim 4, characterized in that, The bottom of the positioning indicator rod (6) is threaded with an opening and closing ring cylinder (12), and a spring is provided between the bottom of the opening and closing ring cylinder (12) and the positioning slider (5). When the spring is in free extension, the side of the opening and closing ring cylinder (12) blocks and seals the through hole of the positioning piston rod (110).

6. The pressing and assembly equipment for manufacturing washing machine control panels according to claim 5, characterized in that, An alarm whistle (13) is fixedly installed at the bottom of the positioning slider (5) and located below the opening and closing ring cylinder (12).

7. The pressing and assembly equipment for manufacturing washing machine control panels according to claim 6, characterized in that, A suction pipe (4) is fixedly installed on the surface of the fixed positioning frame (3), and an air supply pipe (701) is opened at the bottom of the top mold (7). The suction pipe (4) and the air supply pipe (701) are sealed together. A detection piston (14) located on the side of the positioning indicator hole (700) is movably installed on one side of the top mold (7). A pull claw (15) is fixedly installed at the end of the detection piston (14), and a spring is provided between the pull claw (15) and the top mold (7).

8. The pressing and assembly equipment for manufacturing washing machine control panels according to claim 7, characterized in that, A connecting groove is provided in the middle of the top mold (7), and a rubber pressure plate is provided at the bottom of the top mold (7).

9. The pressing and assembly equipment for manufacturing washing machine control panels according to claim 7, characterized in that, The pull claw (15) is L-shaped, and a step block is provided at the top of the positioning indicator rod (6).

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