Multidirectional safety grating of packing machine

Abstract

The invention discloses a multi-azimuth safety grating of a packing machine, and relates to the technical field of safety gratings, and the multi-azimuth safety grating of the packing machine is characterized by comprising a transmitting shell and a receiving shell, the transmitting shell and the receiving shell are each rotationally connected with a mounting seat, and the mounting seats are fixedly connected with a fence of the packing machine; a plurality of transmitters which are vertically distributed at equal intervals are rotatably connected in the transmitting shell, a driving mechanism for driving the plurality of transmitters to synchronously rotate is arranged in the transmitting shell, and a plurality of receivers which are in one-to-one correspondence with the transmitters are fixedly connected in the receiving shell. After the device is installed, the driving mechanism drives the transmitters to synchronously rotate for fine adjustment, a light curtain is formed for protection, the installation condition of a fence of the packing machine is reduced, after deviation occurs after long-time work, only the driving mechanism needs to be adjusted again, the whole transmitting shell or the whole receiving shell does not need to be disassembled, and the cost is reduced. And the workload and time required by adjustment are greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of safety light curtain technology, and more specifically, to a multi-directional safety light curtain for a packing machine. Background Technology

[0002] Safety light curtains, also known as photoelectric safety protection devices, safety protectors, punch press protectors, infrared safety protection devices, etc., generate a protective light curtain by emitting infrared rays. When the protective light curtain is blocked, the device sends a light-blocking signal to control potentially dangerous machinery to stop working. Therefore, safety light curtains are commonly used in modern factories on potentially dangerous machinery when people and machines work together. They can effectively prevent safety accidents and reduce the overall cost of accidents. Existing safety light curtains can also be installed on both sides of a packing machine to prevent personal injury to workers on both sides when the packing machine is working.

[0003] Existing safety light curtains typically consist of a transmitting housing and a receiving housing, which are fixedly connected to both ends of the channel. An infrared signal is emitted by a transmitter within the transmitting housing, and a receiver within the receiving housing receives the infrared signal to form a protective light curtain. However, since the transmitter emits a horizontal infrared signal, repeated adjustments by workers are required during installation to ensure the transmitting and receiving housings are at the same height. This is inconvenient and requires specific installation conditions, such as the baling machine fences on both sides being at the same height. After a period of operation, vibrations from the baling machine can cause the relative positions of the transmitting and receiving housings to shift, necessitating disassembly and adjustment, which is also inconvenient. Furthermore, existing safety light curtains are directly fixed to the baling machine fence, and due to the limited installation surface, they can only protect areas that are in a straight line, often leaving blind spots in non-straight areas.

[0004] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-directional safety light curtain for a packing machine in order to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of this invention is achieved through the following technical solution: a multi-directional safety light curtain for a baling machine, comprising a transmitting shell and a receiving shell, wherein a mounting base is rotatably connected to both the transmitting shell and the receiving shell, the mounting base is fixedly connected to the baling machine fence, and adjusting wheels for driving the transmitting shell and the receiving shell to rotate are provided between the mounting base and the transmitting shell and the receiving shell, wherein multiple vertically equidistant transmitters are rotatably connected inside the transmitting shell, and a driving mechanism for driving the multiple transmitters to rotate synchronously is provided inside the transmitting shell, and multiple receivers corresponding one-to-one with the transmitters are fixedly connected inside the receiving shell.

[0007] The present invention is further configured such that: the driving mechanism includes a rack disposed inside the launch housing and slidingly engaged with the launch housing; a support rod extending out of the launch housing is fixedly connected to the rack; and each launcher is fixedly connected to a driven gear meshing with the rack; the driven gear is rotatably engaged with the launch housing.

[0008] The invention is further configured such that: a support base is fixedly connected to the launch housing; the support base has a cylindrical groove that rotatably engages with the support rod and a conical groove that communicates with the cylindrical groove; the conical groove is located at the end away from the launch housing; a clamping sleeve for limiting the support rod is slidably connected to the support base; the clamping sleeve includes a fixing ring and an mounting ring that rotatably engages with the lower surface of the fixing ring; a plurality of clamping blocks are fixedly connected to the lower end of the mounting ring; the plurality of clamping blocks are arranged in a circumferential array and there is a gap between adjacent clamping blocks; the end of the clamping block away from the support rod is inclined and slides downward to abut against the conical groove; the side of the clamping block near the support rod is provided with a frosted surface.

[0009] The present invention is further configured such that: a symmetrically distributed limiting rod is fixedly connected to the fixing ring; a sliding groove that slides with the limiting rod and an arc groove that communicates with the sliding groove are provided in the support base; the limiting rod and the arc groove rotate with each other; and a symmetrically distributed adjusting block is fixedly connected to the fixing ring.

[0010] The invention is further configured such that: a fixed platform is fixedly connected to the support rod, the fixed platform is located between the clamping sleeve and the conical groove, and a spring is sleeved on the fixed platform that abuts against the lower surface of the fixed ring, the spring being located between multiple clamping blocks.

[0011] The invention is further configured such that: a rotating sphere is fixedly connected to the transmitter, a ball groove is provided on the transmitter housing to rotate and cooperate with the rotating sphere, and an infrared alarm is fixedly connected to the transmitter housing below the rack.

[0012] The present invention is further configured such that: the mounting base is C-shaped, and both the transmitting housing and the receiving housing are fixedly connected to a rotating shaft that rotatably engages with the mounting base; the rotating shaft is fixedly connected to an adjusting wheel; a screw is threadedly connected to one side of the mounting base on the adjusting wheel; one end of the screw passes through the mounting base and is fixedly connected to an abutment plate.

[0013] The invention is further configured such that: the light emitted by the transmitter includes laser and infrared signals, and the receiving housing is provided with a sink at the receiver.

[0014] In summary, the present invention has the following beneficial effects:

[0015] By setting up multiple transmitters that rotate in conjunction with the transmitting housing, and driving the multiple transmitters to rotate synchronously through a drive mechanism, during installation, workers only need to roughly control the installation height of the transmitting housing and the receiving housing to be basically the same. After installation, the multiple transmitters are rotated synchronously by the drive mechanism for fine adjustment, so that the transmitter and receiver are in a straight line, allowing the receiver to receive infrared signals and form a light curtain for protection. This also reduces the installation conditions for the packing machine fence, and installation can be carried out even if there is a height difference. After long-term operation and if the position is offset, only the drive mechanism needs to be readjusted, without the need to completely disassemble the transmitting housing or the receiving housing, which greatly reduces the amount of work and time required for adjustment.

[0016] By setting a mounting base that rotates and engages with the transmitting and receiving housings, during installation, the mounting base only needs to be fixed to the packing machine fence. By rotating the transmitting and receiving housings, the pairing and reception of the transmitting and receiving housings can be completed, thus protecting non-parallel areas and effectively reducing blind spots in protection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a multi-directional safety light curtain for a packing machine according to the present invention;

[0018] Figure 2 This is a cross-sectional view of the emitting housing in a multi-directional safety light curtain of a packing machine according to the present invention;

[0019] Figure 3 for Figure 2 A magnified view of A in the middle.

[0020] Reference numerals: 1. Transmitter housing; 101. Ball groove; 2. Receiver housing; 201. Sink; 3. Mounting base; 4. Adjusting wheel; 5. Transmitter; 6. Drive mechanism; 601. Rack; 602. Support rod; 6021. Fixed platform; 603. Driven gear; 7. Support base; 701. Column groove; 702. Conical groove; 703. Slide groove; 704. Arc groove; 8. Clamping sleeve; 801. Fixing ring; 802. Clamping block; 803. Limiting rod; 804. Adjusting block; 805. Mounting ring; 9. Spring; 10. Rotating ball; 11. Rotating shaft; 12. Screw; 13. Abutment plate; 14. Receiver; 15. Infrared alarm. Detailed Implementation

[0021] 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.

[0022] In one possible embodiment, please refer to Figure 1 and Figure 2 As shown, a multi-directional safety light curtain for a baling machine includes a transmitting housing 1 and a receiving housing 2. A mounting base 3 is rotatably connected to both the transmitting housing 1 and the receiving housing 2. The mounting base 3 is fixedly connected to the baling machine's guardrail. Adjusting wheels 4 are provided between the mounting base 3 and both the transmitting housing 1 and the receiving housing 2 to drive their rotation. Therefore, when facing non-linear areas, i.e., when the baling guardrails on both sides are not on the same straight line or even not parallel, simply fix the mounting base 3 to the baling guardrail, and then rotate the transmitting housing 1 and the receiving housing 2 using the adjusting wheels 4. This aligns the transmitting and receiving surfaces of the transmitting housing 1 and the receiving housing 2 with the same straight line, thus achieving paired reception of the transmitting housing 1 and the receiving housing 2, forming a protective light curtain. This effectively protects non-parallel areas and reduces blind spots.

[0023] For further details, please refer to Figure 1 and Figure 2 As shown, the mounting base 3 is C-shaped. Both the transmitter housing 1 and the receiver housing 2 are fixedly connected to a rotating shaft 11 that rotatably engages with the mounting base 3. The rotating shaft 11 is fixedly connected to the adjusting wheel 4. The mounting base 3 is threaded with a screw 12 on one side of the adjusting wheel 4. One end of the screw 12 passes through the mounting base 3 and is fixedly connected to an abutment plate 13. After the transmitter housing 1 and the receiver housing 2 are rotated to the desired position, the screw 12 is turned to drive the abutment plate 13 to abut against and limit the outer shell of the transmitter housing 1 and the receiver housing 2, thereby achieving the limiting and fixing of the transmitter housing 1 and the receiver housing 2.

[0024] For further details, please refer to Figure 1 and Figure 2 As shown, multiple vertically spaced transmitters 5 are rotatably connected inside the transmitting housing 1. A drive mechanism 6 is installed inside the transmitting housing 1 to drive the multiple transmitters 5 to rotate synchronously. Multiple receivers 14, each corresponding to one of the transmitters 5, are fixedly connected inside the receiving housing 2. By setting multiple transmitters 5 that rotatably cooperate with the transmitting housing 1, and by driving the multiple transmitters 5 synchronously through the drive mechanism 6, during installation, workers only need to roughly control the installation height of the transmitting housing 1 and the receiving housing 2 to be basically the same. After installation, the drive mechanism 6 drives the multiple transmitters 5 to rotate synchronously for fine-tuning, so that the transmitters 5 and receivers 14 are on the same straight line. This allows the receivers 14 to receive infrared signals, forming a light curtain for protection. This also reduces the installation conditions for the packing machine fence, allowing installation even with height differences. After prolonged operation and displacement, only the drive mechanism 6 needs to be readjusted, without the need to completely disassemble the transmitting housing 1 or the receiving housing 2, greatly reducing the workload and time required for adjustment.

[0025] For further details, please refer to Figure 1 and Figure 2 As shown, the light emitted by the transmitter 5 includes laser and infrared signals. The receiver housing 2 is provided with a recess 201 at the receiver 14. When adjusting the angle of the transmitter 5, the transmitter 5 is switched to laser, so that the operator can see the light directly. During the adjustment process, it is only necessary to control the laser to shine into the recess 201 to complete the matching and form a protective light curtain. At this time, the transmitter 5 is switched to infrared signal, making the adjustment simple and convenient.

[0026] For further details, please refer to Figure 1 and Figure 2 As shown, the drive mechanism 6 includes a rack 601 disposed inside and slidably engaged with the launch housing 1. A support rod 602 extending out of the launch housing 1 is fixedly connected to the rack 601. Each launcher 5 is fixedly connected to a driven gear 603 that meshes with the rack 601. The driven gear 603 rotates with the launch housing 1, and by sliding the support rod 602 located outside the launch housing 1, it can drive the rack 601 to slide, thereby driving the driven gear meshing with the rack 601. The rotation of gear 603 causes the transmitter 5, which is fixedly connected to the driven gear 603, to rotate as well, thereby adjusting the infrared signal emitted by the transmitter 5. A rotating ball 10 is fixedly connected to the transmitter 5, and a ball groove 101 is provided on the transmitter housing 1 to rotate and cooperate with the rotating ball 10. Through the rotational cooperation between the rotating ball 10 and the ball groove 101, the friction between the transmitter 5 and the transmitter housing 1 can be effectively reduced without affecting the rotation of the driven gear 603, thus ensuring the smooth rotation of the transmitter 5.

[0027] For further details, please refer to Figure 2 and Figure 3 As shown, a support base 7 is fixedly connected to the launch housing 1. The support base 7 is provided with a cylindrical groove 701 that rotatably engages with the support rod 602 and a conical groove 702 that communicates with the cylindrical groove 701. The conical groove 702 is located at the end away from the launch housing 1. A clamping sleeve 8 for limiting the support rod 602 is slidably connected to the support base 7. After the launcher 5 is rotated to the required angle, the rotation angle of the launcher 5 is fixed by limiting the support rod 602 through the clamping sleeve 8.

[0028] For further details, please refer to Figure 2 and Figure 3 As shown, the clamping sleeve 8 includes a fixing ring 801 and a mounting ring 805 that rotatably engages with the lower surface of the fixing ring 801. Multiple clamping blocks 802 are fixedly connected to the lower end of the mounting ring 805. The clamping blocks 802 are arranged in a circumferential array with gaps between adjacent clamping blocks 802. The end of each clamping block 802 away from the support rod 602 is inclined and slides downward to abut against the conical groove 702. The side of the clamping block 802 closest to the support rod 602 has a frosted surface. Symmetrically distributed limiting rods 803 are fixedly connected to the fixing ring 801. The support base 7 contains a clamping rod that engages with the limiting rods. The sliding groove 703 and the arc groove 704 connected to the sliding groove 703 are slidably fitted. The limiting rod 803 and the arc groove 704 are rotatably fitted. The fixed ring 801 is fixedly connected with symmetrically distributed adjusting blocks 804. The support rod 602 is fixedly connected with a fixed platform 6021. The fixed platform 6021 is located between the clamping sleeve 8 and the conical groove 702. The fixed platform 6021 is fitted with a spring 9 that abuts against the lower surface of the fixed ring 801. The spring 9 is located between multiple clamping blocks 802. The transmitting housing 1 is fixedly connected to an infrared alarm 15 below the rack 601.

[0029] For details, please refer to Figure 2 and Figure 3As shown, after the transmitter 5 is rotated to the desired position, the clamping sleeve 8 is pressed down, and the clamping sleeve 8 slides within the support base 7. At this time, the limiting rod 803 slides downward in the sliding groove 703, and the clamping block 802 abuts against the conical groove 702. Under the action of the conical groove 702, they move closer together and abut against the support rod 602 located in the middle of the multiple clamping blocks 802, thus limiting and clamping the support rod 602. The frosted surface can effectively increase the friction between the support rod 602 and the support rod 602. When the limiting rod 803 slides to the bottom and abuts against the arc groove 704, the clamping force of the clamping block 802 on the support rod 602 is at its maximum. At this time, the friction can effectively prevent the support rod 602 from sliding up and down. At this time, by applying force to the adjusting block 804, the fixed ring 801 that is rotated and cooperates with the mounting ring 805 is rotated. At this time, the limiting rod 803 will slide into the arc groove 704. Within 4, when the force applied to the clamping sleeve 8 is released, the arc groove 704 will limit the limit rod 803, thereby ensuring that the clamping sleeve 8 continuously clamps and limits the support rod 602. Furthermore, by setting a spring 9 between the fixed platform 6021 and the fixed ring 801, the spring 9 and the clamping block 802 will generate opposite forces on the fixed ring 801, thereby increasing the friction between the limit rod 803 and the inner wall of the arc groove 704, making it difficult for the limit rod 803 to disengage from the arc groove 704, ensuring the stability of the limit on the support rod 602, and thus ensuring the stability of the angle of the transmitter 5. When readjustment is required, simply apply reverse force to the adjusting block 804. When the limit block slides to the slide groove 703, the fixed ring 801 will rebound under the action of the spring 9 and the clamping block 802, releasing the limit on the support rod 602, and the operator can readjust the angle of the transmitter 5.

[0030] For further details, please refer to Figure 2 and Figure 3 As shown, even during the operation of the transmitter 5, when the limiting rod 803 disengages from the arc groove 704, the rack 601, which loses the limiting of the clamping sleeve 8, will slide down under the action of gravity. At this time, it will block the infrared alarm 15 located below the rack 601, and the infrared alarm 15 will sound an alarm to remind the staff to readjust.

[0031] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A multi-directional safety light curtain for a packing machine, comprising a transmitting housing (1) and a receiving housing (2), characterized in that: Mounting bases (3) are rotatably connected to both the transmitting housing (1) and the receiving housing (2). The mounting bases (3) are fixedly connected to the packing machine fence. Adjusting wheels (4) for driving the transmitting housing (1) and the receiving housing (2) to rotate are provided between the mounting bases (3) and the transmitting housing (1) and the receiving housing (2). Multiple vertically spaced transmitters (5) are rotatably connected inside the transmitting housing (1). A drive mechanism (6) for driving the multiple transmitters (5) to rotate synchronously is provided inside the transmitting housing (1). Multiple receivers (14) corresponding one-to-one with the transmitters (5) are fixedly connected inside the receiving housing (2).

2. The multi-directional safety light curtain for a packing machine according to claim 1, characterized in that: The drive mechanism (6) includes a rack (601) disposed inside the launch housing (1) and slidingly engaged with the launch housing (1). A support rod (602) extending out of the launch housing (1) is fixedly connected to the rack (601). Each launcher (5) is fixedly connected to a driven gear (603) meshing with the rack (601). The driven gear (603) rotates with the launch housing (1).

3. A multi-directional safety light curtain for a packing machine according to claim 2, characterized in that: A support base (7) is fixedly connected to the launch housing (1). The support base (7) has a cylindrical groove (701) that rotatably engages with the support rod (602) and a conical groove (702) communicating with the cylindrical groove (701). The conical groove (702) is located at one end away from the launch housing (1). A clamping sleeve (8) for limiting the position of the support rod (602) is slidably connected to the support base (7). The clamping sleeve (8) includes a fixing ring (801) and a clamping sleeve that connects to the fixing ring (801). The mounting ring (805) is rotatably fitted to the lower surface of the mounting ring (801). Multiple clamping blocks (802) are fixedly connected to the lower end of the mounting ring (805). The multiple clamping blocks (802) are arranged in a circumferential array and there is a gap between adjacent clamping blocks (802). The end of the clamping block (802) away from the support rod (602) is inclined and slides down to abut against the conical groove (702). The side of the clamping block (802) near the support rod (602) is provided with a frosted surface.

4. A multi-directional safety light curtain for a packing machine according to claim 3, characterized in that: The fixed ring (801) is fixedly connected with symmetrically distributed limiting rods (803). The support base (7) is provided with a sliding groove (703) that slides with the limiting rods (803) and an arc groove (704) that communicates with the sliding groove (703). The limiting rods (803) and the arc groove (704) rotate with each other. The fixed ring (801) is fixedly connected with symmetrically distributed adjusting blocks (804).

5. A multi-directional safety light curtain for a packing machine according to claim 3, characterized in that: A fixed platform (6021) is fixedly connected to the support rod (602). The fixed platform (6021) is located between the clamping sleeve (8) and the conical groove (702). A spring (9) is sleeved on the fixed platform (6021) and abuts against the lower surface of the fixed ring (801). The spring (9) is located between multiple clamping blocks (802).

6. A multi-directional safety light curtain for a packing machine according to claim 2, characterized in that: A rotating ball (10) is fixedly connected to the transmitter (5), and a ball groove (101) is provided on the transmitter housing (1) to rotate and cooperate with the rotating ball (10). An infrared alarm (15) is fixedly connected to the transmitter housing (1) below the rack (601).

7. A multi-directional safety light curtain for a packing machine according to claim 1, characterized in that: The mounting base (3) is C-shaped. The transmitting housing (1) and the receiving housing (2) are both fixedly connected to a rotating shaft (11) that rotates with the mounting base (3). The rotating shaft (11) is fixedly connected to the adjusting wheel (4). The mounting base (3) is threaded with a screw (12) on one side of the adjusting wheel (4). One end of the screw (12) passes through the mounting base (3) and is fixedly connected to an abutment plate (13).

8. A multi-directional safety light curtain for a packing machine according to claim 1, characterized in that: The light emitted by the transmitter (5) includes laser and infrared signals, and the receiving housing (2) is provided with a sink (201) at the receiver (14).

Images