Device for safety protection of vertical machine

Abstract

The utility model discloses a safety protection device for a vertical machine, which is mainly applied to the technical field of safety and comprises an electromagnetic valve, an air cylinder, a spring, a bayonet lock fixing seat, a bayonet lock and a clamping column, the air cylinder is communicated and connected with an air path of the electromagnetic valve, the air cylinder is controlled by the electromagnetic valve to work, the air cylinder is connected with one side of the bayonet lock fixing seat, and the clamping column is connected with the bayonet lock fixing seat. An air cylinder piston rod of the air cylinder moves in the horizontal direction of the bayonet lock fixing seat, a boss is arranged at the top of the air cylinder piston rod, a spring is arranged between the boss and the air cylinder, the top of the air cylinder piston rod is connected with the bayonet lock in a clamped mode, the bayonet lock fixing seat is fixed to an upper mold plate of the vertical injection molding machine, and the clamping column is perpendicularly connected with a lower mold plate or a tabletop of the vertical injection molding machine. The safety protection device for the vertical machine is compact in structure and clear in operation logic, under extreme conditions, the protection device operates in a mechanical structure, does not depend on electric appliances, is high in reliability, few in parts and low in manufacturing cost, and protects personal safety of operators.

Description

TECHNICAL FIELD

[0001] The utility model relates to a safety technical field, concretely relates to a device for vertical machine safety protection. BACKGROUND

[0002] The vertical injection molding machine is a mechanical equipment, which is usually composed of an injection system, a mold clamping system, a hydraulic transmission system, an electrical control system, a lubrication system, a heating and cooling system, and a safety monitoring system. The injection system is one of the most important components of the injection molding machine, which generally has three main forms: plunger type, screw type, and screw pre-plastic plunger injection type. The screw type is the most widely used. Its function is to heat and plasticize a certain amount of plastic within a specified time during a cycle of the injection molding machine, and then inject the molten plastic into the mold cavity at a certain pressure and speed through the screw.

[0003] The application number 2021231756928 discloses a protective safety rod for a vertical injection molding machine. The vertical injection molding machine includes an upper mold plate, a lower mold plate, and a control system that controls the movement of the upper mold plate. The protective safety rod includes an emergency stop switch, a driving structure, and a support rod perpendicular to the upper mold plate. The driving structure is connected to the support rod and is used to control the movement of the support rod in and out of the space between the upper and lower mold plates. The emergency stop switch is connected to the control system and is located on the end surface of the support rod facing the upper mold plate. After the injection molding machine is opened, the driving structure is used to stand the support rod between the upper and lower mold plates of the injection molding machine to ensure that in the case of oil cylinder leakage or mechanical lock rod failure, the falling upper mold plate can press the emergency stop switch on the support rod, causing the upper mold plate to move upwards to avoid injuring the operator. Even if the control system fails, the support rod can still resist the upper mold plate to protect the personal safety of the operator.

[0004] Although the above technical solution can solve the protection problem of the vertical injection molding machine, it still has the following problems: 1. The structure is complex and the reliability is poor. The entire device needs to rely on the emergency stop switch, the driving structure, and the support rod perpendicular to the upper mold plate to operate stably. Once one of them is damaged, the entire device will not operate stably. 2. The manufacturing cost is high, which is not conducive to large-scale promotion and utilization. UTILITY MODEL CONTENTS

[0005] The utility model provides a device for vertical machine safety protection, which solves the problems of complex structure, poor reliability, and high manufacturing cost of the existing vertical injection molding machine safety protection device.

[0006] The utility model discloses a technical scheme for a device for vertical machine safety protection, comprising a solenoid valve, a cylinder, a spring, a pin fixing seat, a pin and a clamping column, the cylinder is connected with the solenoid valve gas circuit, the cylinder works through the solenoid valve control, the cylinder is connected with the pin fixing seat one side, the cylinder piston rod of cylinder moves along the horizontal direction of pin fixing seat, the cylinder piston rod top has a boss, and the boss and the cylinder have a spring, the cylinder piston rod top and the pin are connected, the pin fixing seat is fixed on the vertical injection molding machine upper die plate, the clamping column is connected with the lower die plate or the vertical injection molding machine mesa vertically, the solenoid valve controls the cylinder piston rod to retract when electrified or in normal state, and the clamping column is unrestricted, the solenoid valve makes the cylinder piston rod extend under the action of spring when power off or in abnormal state, the pin and the clamping column are attached, and the vertical injection molding machine upper die plate will not fall.

[0007] Preferably, the clamping column has an axially uniform conical surface groove.

[0008] Preferably, the pin and the clamping column are made of high-strength structural steel.

[0009] Preferably, the clamping column has a length of at least 800 mm.

[0010] Preferably, the solenoid valve is a pneumatic one-way air valve.

[0011] Preferably, the pin and the clamping column have a length of at least 5 mm at the attachment position.

[0012] Preferably, the pin fixing seat has a T-shaped groove, and the edge of the pin has a T-shaped slide rail.

[0013] The utility model discloses a principle: the utility model discloses the following technical scheme to solve the problem of the existing vertical injection molding machine safety protection device structure complex, poor reliability, high manufacturing cost, under the electrification or normal state, the solenoid valve controls the cylinder piston rod to retract, and the spring is in the compressed state, and the pin is away from the clamping column, and the injection molding machine upper and lower die plate normally runs and is unrestricted, once power off or abnormal situation, the solenoid valve is powered off, and the pin is ejected by the spring, and the pin and the clamping column are attached, and the vertical injection molding machine upper die plate will not fall due to power off or other abnormal state, and the personal safety of the operator is protected.Compared with the prior art, the utility model has compact structure, fewer components, does not depend on any electric drive, and has higher reliability, can guarantee the operator from accidental injury in extreme conditions.

[0014] The utility model discloses a device for vertical machine safety protection, which has compact structure, clear operation logic, and high reliability in extreme conditions. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model;

[0016] In the figure, 101 - solenoid valve, 102 - cylinder, 103 - pin fixed seat, 104 - cylinder piston rod, 105 - spring, 106 - pin, 107 - card column. DETAILED DESCRIPTION

[0017] The specific embodiment of the utility model is: Figure 1 As shown in a kind of device for vertical machine safety protection, including solenoid valve 101, cylinder 102, spring 105, pin fixed seat 103, pin 106, card column 107, the cylinder 102 is connected with solenoid valve 101 gas circuit intercommunication, cylinder 102 works by solenoid valve control, the cylinder 102 is connected with pin fixed seat 103 one side, cylinder piston rod 104 of cylinder 102 moves along the horizontal direction of pin fixed seat 103, the top of cylinder piston rod 104 has boss, spring 105 between boss and cylinder 102, the top of cylinder piston rod 104 is clamped with pin 106, the pin fixed seat 103 is fixed on vertical injection molding machine upper die plate, card column 107 is vertically connected with lower die plate or vertical injection molding machine mesa, solenoid valve 101 controls cylinder piston rod 104 to retract when power on or no abnormal state, card column 107 is not restricted, cylinder piston rod 104 extends under the action of spring 105 when solenoid valve 101 is in power-off or abnormal state, pin 106 is attached to card column 107, and vertical injection molding machine upper die plate will not fall down.In the embodiment, the protection device plays a role under power-off and other abnormal conditions, and does not rely on any electrical control during the action process, and all action components are mechanical structures, compared with prior art, the reliability is significantly improved, and the manufacturing cost is effectively reduced, with higher popularization value.

[0018] Specifically, as shown in the figure, Figure 1 The card column 107 is axially distributed with conical groove.In the embodiment, the card column 107 has a plurality of conical grooves in axial direction, the pin 106 can be attached to any conical groove, and the upper die plate can be prevented from falling in the shortest falling distance, to ensure the safety of operating personnel.

[0019] Specifically, the pin 106 and the card column 107 are made of high-strength structural steel material.In the embodiment, the pin 106 and the card column 107 made of high-strength structural steel material have high mechanical strength and strong impact resistance, so that they can be reliably attached in case of accident, to ensure the safety of operating personnel.

[0020] Specifically, the length of the card column 107 is at least 800 mm.In the embodiment, the card column 107 with a length of more than 800 mm is suitable for the stroke distance of a plurality of vertical injection molding machines, to improve the adaptability of the utility model.

[0021] Specific, the electromagnetic valve 101 selects the pneumatic one-way ventilation electromagnetic valve. In the embodiment, the pneumatic one-way ventilation electromagnetic valve is reliable in operation and low in procurement cost.

[0022] Specific, the length of the abutting part of the pin 106 and the column 107 is at least 5mm. In the embodiment, the length of the abutting part of the pin 106 and the column 107 is greater than 5mm, which can ensure that the upper mold plate is prevented from falling in an extreme case and the safety of the operator is ensured.

[0023] Specific, the pin fixing seat 103 has a T-shaped slot and the edge of the pin 106 has a T-shaped slide rail. In the embodiment, the T-shaped slot and the T-shaped slide rail are matched to ensure that the pin 106 is stably operated along the pin fixing seat 103 and the stability of the utility model is improved.

[0024] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A device for safety protection of a vertical machine, comprising a solenoid valve (101), a cylinder (102), and a spring (105), characterized in that: It also includes a locking pin fixing seat (103), a locking pin (106), and a locking post (107). The cylinder (102) is connected to the solenoid valve (101) via an air circuit. The solenoid valve controls the operation of the cylinder (102). The cylinder (102) is connected to one side of the locking pin fixing seat (103). The cylinder piston rod (104) of the cylinder (102) moves horizontally along the locking pin fixing seat (103). The top of the cylinder piston rod (104) has a boss, and a spring (105) is placed between the boss and the cylinder (102). The top is engaged with the locking pin (106), the locking pin fixing seat (103) is fixed to the upper template of the vertical injection molding machine, the locking post (107) is vertically connected to the lower template or the table of the vertical injection molding machine, the solenoid valve (101) controls the cylinder piston rod (104) to retract when energized or in an abnormal state, the locking post (107) is unrestricted, the solenoid valve (101) de-energizes or in an abnormal state, the cylinder piston rod (104) extends under the action of the spring (105), the locking pin (106) and the locking post (107) are in contact, and the upper template of the vertical injection molding machine will not fall.

2. The device for safety protection of a vertical machine according to claim 1, characterized in that: The locking post (107) has axially distributed conical grooves.

3. The device for safety protection of a vertical machine according to claim 1, characterized in that: The locking pin (106) and locking post (107) are made of high-strength structural steel.

4. The device for safety protection of a vertical machine according to claim 2, characterized in that: The length of the locking post (107) is at least 800 mm.

5. The device for safety protection of a vertical machine according to claim 1, characterized in that: The solenoid valve (101) is a pneumatic one-way solenoid valve.

6. The device for safety protection of a vertical machine according to claim 1, characterized in that: The length of the contact point between the locking pin (106) and the locking post (107) is at least 5 mm.

7. The device for safety protection of a vertical machine according to claim 1, characterized in that: The locking pin fixing seat (103) has a T-shaped groove, and the locking pin (106) has a T-shaped slide rail on its edge.

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