Safety protection device for cache machine

Abstract

The utility model discloses a safety protection device for a cache machine, which is arranged at the two sides of an inlet and an outlet of the cache machine for controlling the start and stop of the cache machine, and comprises grating detectors, relays, a power supply box and an emergency stop switch, the power box is electrically connected with external voltage, the positive electrode and the negative electrode of the receiving end and the transmitting end of the grating detector are correspondingly and electrically connected with the positive electrode and the negative electrode of the power box respectively, an induction signal line of the receiving end of the grating detector is electrically connected with the relay, and the relay is electrically connected with the power box and connected with the emergency stop switch in series. When the light beam between the transmitting end and the receiving end of the grating detector is interrupted, the relay is triggered, the emergency stop switch enters a closed state at the same time, the machine stops and gives an alarm, and the effects of protecting personnel from being injured and protecting products from being damaged are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of SMT surface mount production lines, and in particular to a safety protection device for a cache machine. Background Technology

[0002] When receiving circuit boards, the buffer machine automatically stores them in a turnover box. As the machine runs, the turnover box will continuously rise or fall to output the PCBA circuit boards to the next workstation. If a board jams during the rising or falling process, the operator needs to manually remove the jammed circuit board from the turnover box and resume normal production. However, during manual operation, since there are no safety protection devices at the inlet and outlet of the turnover box corresponding to the buffer machine, if the operator accidentally puts their hand or other objects into the turnover box due to improper operation during normal operation, it may cause hand injury or product damage, and in severe cases, hand breakage or product scrapping. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a safety protection device for a cache machine. When the storage mechanism of the cache machine moves up or down, if the light beam between the transmitting end and the receiving end of the grating detector is interrupted, the relay is triggered and the emergency stop switch enters the closed state, the machine stops and an alarm is triggered, thus protecting personnel from injury and products from damage.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a safety protection device for a buffer machine, which is installed on both sides of the buffer machine's inlet and outlet to control the start and stop of the buffer machine, including: a grating detector, a relay, a power supply box, and an emergency stop switch. The grating detector is installed at the inlet and outlet of the buffer machine. The power supply box is electrically connected to an external 220V voltage. The positive and negative terminals of the receiving and transmitting ends of the grating detector are respectively electrically connected to the corresponding positive and negative terminals of the power supply box. The sensing signal line of the receiving end of the grating detector is electrically connected to the relay. The relay is electrically connected to the power supply box and connected in series with the emergency stop switch to send the relay's output signal to the emergency stop switch.

[0005] In one embodiment, the grating detector is provided in two sets, which are respectively installed on both sides of the inlet and outlet of the rising and falling of the turnover box to detect blind spots.

[0006] In one embodiment, when the light beam between the transmitter and receiver of the grating detector is interrupted, the relay is triggered to send a signal to the emergency stop switch to enter a closed state.

[0007] In one embodiment, an alarm light connected to a relay signal is also included.

[0008] In one embodiment, the power supply box is a DC24V power supply box.

[0009] The beneficial effects of this utility model are: when the storage mechanism of the buffer machine moves up or down, when the light beam between the transmitting end and the receiving end of the grating detector is interrupted, the relay is triggered and the emergency stop switch enters the closed state, the machine stops and an alarm is triggered, thus protecting personnel from injury and products from damage. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0011] Figure 1 This is a schematic diagram of the framework of a security protection device for a cache machine according to the present invention. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0013] Please see Figure 1 The present invention is a safety protection device for a buffer machine, which is installed on both sides of the buffer machine's inlet and outlet to control the start and stop of the buffer machine. It includes: a grating detector 1, a relay 2, a power supply box 3, and an emergency stop switch 4. The power supply box is a DC 24V power supply box. The grating detectors are installed at the inlet and outlet of the buffer machine. Specifically, two sets of grating detectors are installed on both sides of the inlet and outlet of the rising and falling of the turnover box to detect blind spots. The power supply box is electrically connected to an external 220V voltage source. The positive and negative terminals of the receiving and transmitting ends of the grating detector are electrically connected to the corresponding positive and negative terminals of the power supply box. The sensing signal line of the receiving end of the grating detector is electrically connected to the relay. The relay is electrically connected to the power supply box and connected in series with the emergency stop switch to send the relay's output signal to the emergency stop switch.

[0014] Safety protection measures can be achieved by adding a grating detector, a relay, and a DC24V power supply box. Using the external 220V voltage of the machine, a DC24V power supply box and a grating detector are installed inside the buffer machine. The machine's emergency stop switch and the added relay are connected in series to form the entire control loop. When the beam between the transmitter and receiver of the grating detector is interrupted, the relay is triggered to send a signal to the emergency stop switch to enter the closed state.

[0015] Specifically, the positive and negative terminals of the receiving and transmitting ends of the grating are connected to the positive and negative terminals of the equipment's 24V power supply, respectively. The sensing signal line of the receiving end is connected to the relay. The newly installed relay uses the newly added DC24V power supply box to provide the relay's output signal to the emergency stop switch, so that the relay and the emergency stop switch are connected in series. When the beam between the transmitting and receiving ends of the grating detector is interrupted, the relay is triggered and the emergency stop switch enters the closed state. The relay signal is connected to the alarm light 6. When the machine stops and an alarm is triggered, it achieves the function of protecting personnel from injury and preventing product damage.

[0016] The beneficial effects of this utility model are: when the storage mechanism of the buffer machine moves up or down, when the light beam between the transmitting end and the receiving end of the grating detector is interrupted, the relay is triggered and the emergency stop switch enters the closed state, the machine stops and alarms, thus avoiding injury to personnel or damage to products.

[0017] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A safety guard for a buffer machine, arranged at both sides of the entrance and exit of the buffer machine for controlling the start and stop of the buffer machine, characterized in that It includes: grating detector, relay, power box and emergency stop switch, the grating detector is installed in the entrance and exit position of buffer machine, the power box is connected with the external 220V voltage, the positive and negative poles of the receiving end and the transmitting end of the grating detector are connected with the corresponding positive and negative poles of the power box, the sensing signal line of the receiving end of the grating detector is connected with the relay, the relay is connected with the power box and is connected with the emergency stop switch in series, and the output signal of the relay is sent to the emergency stop switch.

2. The safety guard for a cache according to claim 1, wherein, The grating detector is provided with two groups, which are installed on both sides of the entrance and exit of the toter box rising and descending for detecting the blind area.

3. The safety guard for a cache according to claim 2, wherein, When the light beam between the transmitting end and the receiving end of the grating detector is interrupted, the relay sends a signal to the emergency stop switch to enter a closed state.

4. The safety guard for a cache according to claim 3, wherein, It also includes an alarm lamp connected with the relay signal.

5. The safety guard for a cache according to claim 1, wherein, The power box is a DC 24V power box.

Images