Device for preventing PET (polyethylene terephthalate) hollow forming equipment from mistakenly controlling mold closing

Abstract

The utility model provides a device for preventing PET hollow forming equipment from mistakenly controlling mold closing, and relates to the technical field of production safety, the device comprises an adjusting mechanism, the adjusting mechanism is connected with a limiting frame, the inner walls of the two sides of the limiting frame are each provided with a light curtain, and the light curtains are used for detecting whether a person enters a mold closing area or not. By arranging the limiting frame, the limiting frame can form a physical barrier in the normal mold opening state of equipment, accidental closing of a mold under the condition that no instruction exists is effectively prevented, and therefore the risk of mold closing by mistake is reduced, the light curtain can monitor whether personnel exist in a mold closing area or not in real time, and once the personnel activity is detected, the mold closing area is controlled to be closed by mistake. And therefore, the safety of personnel is ensured.

Description

Technical Field

[0001] This utility model relates to the field of production safety technology, and more specifically, to a device for preventing erroneous mold closing in PET hollow molding equipment. Background Technology

[0002] In modern packaging container production, PET hollow molding equipment plays a crucial role. This equipment uses blow molding technology to form hollow containers of various shapes from heated and softened PET material, widely used in the food, beverage, cosmetics, and pharmaceutical industries. However, existing PET hollow molding equipment has a safety hazard during operation: if the mold accidentally closes (i.e., mis-controlled mold closure) due to operational error or system malfunction after completing a molding cycle and opening the mold, and workers are performing maintenance, inspection, or cleaning work in the operating area at this time, it could potentially cause serious personal injury. Therefore, we have proposed an improvement to prevent mis-controlled mold closure in PET hollow molding equipment. Utility Model Content

[0003] The purpose of this invention is to address the safety accidents caused by mis-controlled mold closing in existing PET hollow molding equipment.

[0004] In order to achieve the above-mentioned objectives, this utility model provides a device to prevent erroneous mold closing in PET hollow molding equipment, thereby improving the above-mentioned problems.

[0005] The application is as follows:

[0006] A device for preventing erroneous mold closing in PET hollow molding equipment includes an adjustment mechanism with a limit frame connected to the adjustment mechanism. Light curtains are installed on the inner walls on both sides of the limit frame to detect whether personnel have entered the mold closing area.

[0007] As a preferred technical solution of this application, a reinforcing member is provided at the corner of the inner wall of the limiting frame, and the reinforcing member is used to strengthen the limiting frame.

[0008] As a preferred technical solution of this application, the reinforcing component is a reinforcing block, which is fixedly installed at the corner of the inner wall of the limiting frame.

[0009] As a preferred technical solution of this application, detection sensors are installed on both sides of the limiting frame that are furthest away from each other.

[0010] As a preferred technical solution of this application, the adjustment mechanism includes a connecting rod, one end of which is connected to a limiting frame, and the connecting rod is connected to a second central module.

[0011] As a preferred technical solution of this application, the second central module is connected to the first linear module.

[0012] As a preferred technical solution of this application, the first linear module is equipped with a mounting base, and the mounting base has a plurality of mounting holes.

[0013] As a preferred technical solution of this application, an mounting plate is fixedly mounted on the mounting base, and an alarm structure is mounted on the mounting plate.

[0014] As a preferred technical solution of this application, the alarm structure includes an alarm device, and a connector is provided between the alarm device and the mounting plate.

[0015] As a preferred technical solution of this application, the connector includes a bottom cover fixedly installed on the top of the mounting plate. The top of the bottom cover has a notch, and a limiting plate is provided inside the bottom cover. A connecting shaft is fixedly installed on the top of the limiting plate, and the top end of the connecting shaft passes through the notch and is connected to the bottom of the alarm.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application:

[0018] To address the safety issues arising from mis-controlled mold closing in existing PET hollow molding equipment, this application introduces a limiting frame. This limiting frame forms a physical barrier when the equipment is in normal mold-opening mode, effectively preventing the mold from closing unexpectedly without instruction, thereby reducing the risk of mis-controlled mold closing. The light curtain can monitor in real time whether there are personnel in the mold-closing area. Once personnel activity is detected, the mold-closing action is stopped to ensure personnel safety. Attached Figure Description

[0019] Figure 1 A schematic diagram of the device for preventing accidental mold closing in PET hollow molding equipment provided in this application;

[0020] Figure 2 Another structural schematic diagram of the device for preventing accidental mold closing in PET hollow molding equipment provided in this application;

[0021] Figure 3 A schematic diagram of the alarm device for the PET hollow molding equipment used in this application to prevent accidental mold closing.

[0022] Figure 4 This is a schematic diagram of the limiting plate of the device for preventing accidental mold closing in PET hollow molding equipment provided in this application.

[0023] The image shows:

[0024] 1. Adjustment mechanism; 101. First linear module; 102. Second central module; 103. Connecting rod; 105. Mounting base; 106. Mounting hole; 2. Limiting frame; 201. Detection sensor; 202. Light curtain; 203. Reinforcing block; 3. Mounting plate; 4. Alarm; 401. Connecting shaft; 402. Bottom cover; 403. Notch; 404. Limiting plate. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 should fall within the protection scope of the present invention.

[0026] As described in the background art, there is a safety hazard in the operation of existing PET hollow molding equipment: if the mold closes unexpectedly due to operational errors or system failure after the equipment completes a molding cycle and opens the mold (i.e., mis-controlled mold closing), and there are workers in the operating area performing maintenance, inspection or cleaning operations at this time, it may cause serious personal injury accidents.

[0027] To solve this technical problem, this utility model provides a device to prevent erroneous mold closing in PET hollow molding equipment.

[0028] For details, please refer to Figures 1-2 The device for preventing erroneous mold closing in PET hollow molding equipment specifically includes:

[0029] Adjustment mechanism 1, with limit frame 2 connected to it. Light curtain 202 is installed on the inner walls on both sides of the limit frame 2. The light curtain 202 is used to detect whether personnel have entered the mold closing area.

[0030] The present invention provides a device for preventing accidental mold closing in PET hollow molding equipment. The present application uses a limiting frame 2, which forms a physical barrier in the normal mold opening state of the equipment, effectively preventing the mold from closing unexpectedly without instruction, thereby reducing the risk of accidental mold closing. The light curtain 202 can monitor in real time whether there are personnel in the mold closing area. Once personnel activity is detected, the mold closing action is stopped to ensure personnel safety.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Example 1, please refer to Figures 1-2 A device for preventing accidental mold closing in PET hollow molding equipment includes an adjustment mechanism 1, a limit frame 2 connected to the adjustment mechanism 1, and light curtains 202 installed on the inner walls of both sides of the limit frame 2. The light curtains 202 are used to detect whether personnel enter the mold closing area. The limit frame 2 can form a physical barrier in the normal mold opening state of the equipment, effectively preventing the mold from closing unexpectedly without instruction, thereby reducing the risk of accidental mold closing. The light curtains 202 can monitor whether personnel are present in the mold closing area in real time. Once personnel activity is detected, the mold closing action is stopped to ensure personnel safety.

[0035] Example 2 further optimizes the device for preventing accidental mold closing in PET hollow molding equipment provided in Example 1. Specifically, a reinforcing member is provided at the corner of the inner wall of the limiting frame 2. The reinforcing member is used to strengthen the limiting frame 2 to improve the firmness of the limiting frame 2, thereby enabling the limiting frame 2 to provide sufficient physical support when the mold closes unexpectedly.

[0036] Furthermore, such as Figures 1-2 As shown, the reinforcing component is a reinforcing block 203, which is fixedly installed at the corner of the inner wall of the limiting frame 2. The reinforcing block 203 can reinforce the limiting frame 2 to improve its stability.

[0037] Furthermore, such as Figures 1-2 As shown, detection sensors 201 are installed on both sides of the limiting frame 2 away from each other. The detection sensors 201 are used to detect whether the mold is moving. If the mold is detected to be moving, an alarm will be set to provide the staff with timely measures.

[0038] Furthermore, such as Figures 1-2 As shown, the adjustment mechanism 1 includes a connecting rod 103, one end of which is connected to the limiting frame 2. The connecting rod 103 is connected to a second central module 102, which can adjust the horizontal position of the limiting frame 2 through the connecting rod 103.

[0039] Furthermore, such as Figures 1-2 As shown, the second center module 102 is connected to the first linear module 101. The first linear module 101 can drive the second center module 102 to rise and fall, so as to adjust the height of the limit frame 2.

[0040] Furthermore, such as Figures 1-2 As shown, a 105 is installed on the first linear module 101, and a plurality of mounting holes 106 are provided on the 105. The 105 and the mounting holes 106 cooperate with each other for the installation of the first linear module 101.

[0041] Example 3 further optimizes the device for preventing erroneous mold closing in PET hollow molding equipment provided in Example 1 or 2. Specifically, an mounting plate 3 is fixedly installed on 105, and an alarm structure is installed on the mounting plate 3.

[0042] Furthermore, such as Figure 2 As shown, the alarm structure includes an alarm 4, a connector is provided between the alarm 4 and the mounting plate 3, the alarm 4 is connected to a controller, the controller is connected to the detection sensor 201 and the light curtain 202, the detection sensor 201 and the light curtain 202 are both connected to the control system of the PET hollow molding equipment, and the alarm 4 can trigger an alarm when the detection sensor 201 detects mold movement.

[0043] Furthermore, such as Figure 3 and Figure 4 As shown, the connector includes a bottom cover 402 fixedly installed on the top of the mounting plate 3. The bottom cover 402 has a notch 403 on its top. A limiting plate 404 is provided inside the bottom cover 402. A connecting shaft 401 is fixedly installed on the top of the limiting plate 404. The top end of the connecting shaft 401 passes through the notch 403 and is connected to the bottom of the alarm 4. By rotating the alarm 4 so that the limiting plate 404 is aligned with the notch 403, the limiting plate 404 can be removed from the notch 403, and the alarm 4 can be removed for maintenance. During installation, the limiting plate 404 is inserted through the notch 403 and then rotated so that the limiting plate 404 is misaligned with the notch 403 to achieve installation.

[0044] The usage process of the device provided by this utility model for preventing accidental mold closing in PET hollow molding equipment is as follows:

[0045] After the mold is opened, the first linear module 101 moves the limiting frame 2 between the two molds through the second central module 102 and the connecting rod 103. The limiting frame 2 provides physical limitation on the two molds to reduce the possibility of the two molds closing together and increase safety during use. After the mold is opened, the detection sensor 201 detects whether the mold has moved towards the limiting frame 2. If movement is detected, the alarm 4 is triggered. At the same time, the light curtain 202 detects whether there are personnel in the area between the two molds. If there are personnel, the control system of the PET hollow molding equipment controls the PET hollow molding equipment not to perform the mold closing operation.

[0046] When mold closing is required, the first linear module 101, the second central module 102, and the connecting rod 103 move together from between the two molds to the sides of the two molds. The sides of the molds are detected by the light curtain 202. If someone approaches the mold closing area during the mold closing process, the light curtain 202 will detect it, the alarm 4 will sound, and the PET hollow molding equipment will stop closing the mold to reduce the possibility of accidents caused by personnel accidentally entering during the mold closing process.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A device for preventing erroneous mold closing in PET hollow molding equipment, characterized in that, It includes an adjustment mechanism (1), on which a limit frame (2) is connected. Light curtains (202) are installed on the inner walls on both sides of the limit frame (2). The light curtains (202) are used to detect whether personnel enter the mold closing area.

2. The device for preventing erroneous mold closing in PET hollow molding equipment according to claim 1, characterized in that, A reinforcing member is provided at the corner of the inner wall of the limiting frame (2), which is used to reinforce the limiting frame (2).

3. The device for preventing erroneous mold closing in PET hollow molding equipment according to claim 2, characterized in that, The reinforcing component is a reinforcing block (203), which is fixedly installed at the corner of the inner wall of the limiting frame (2).

4. The device for preventing erroneous mold closing in PET hollow molding equipment according to claim 3, characterized in that, Detection sensors (201) are installed on both sides of the limiting frame (2) away from each other.

5. The device for preventing erroneous mold closing in a PET hollow molding equipment according to claim 4, characterized in that, The adjustment mechanism (1) includes a connecting rod (103), one end of which is connected to the limiting frame (2), and the connecting rod (103) is connected to a second center module (102).

6. The device for preventing erroneous mold closing in a PET hollow molding equipment according to claim 5, characterized in that, The second center module (102) is connected to the first linear module (101).

7. The device for preventing erroneous mold closing in a PET hollow molding equipment according to claim 6, characterized in that, The first linear module (101) is equipped with a mounting base (105), and the mounting base (105) has a plurality of mounting holes (106).

8. The device for preventing erroneous mold closing in a PET hollow molding equipment according to claim 7, characterized in that, An mounting plate (3) is fixedly mounted on the mounting base (105), and an alarm structure is mounted on the mounting plate (3).

9. The device for preventing erroneous mold closing in a PET hollow molding equipment according to claim 8, characterized in that, The alarm structure includes an alarm (4), and a connector is provided between the alarm (4) and the mounting plate (3).

10. The device for preventing erroneous mold closing in a PET hollow molding equipment according to claim 9, characterized in that, The connector includes a bottom cover (402) fixedly installed on the top of the mounting plate (3). The bottom cover (402) has a notch (403) on its top. A limiting plate (404) is provided inside the bottom cover (402). A connecting shaft (401) is fixedly installed on the top of the limiting plate (404). The top end of the connecting shaft (401) passes through the notch (403) and is connected to the bottom of the alarm (4).

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