A smart adjustable safety pedal for injection molding machines placed on the ground

Abstract

This utility model relates to an intelligent adjustable safety pedal for a ground-mounted injection molding machine. It has a frame, which includes two right-angle support plates spaced at a distance from each other. A rectangular frame made of channel steel is elastically mounted on the inner side of each right-angle support plate. The pedal body is mounted on the upper surface of the rectangular frame. Screw-operated lifting feet for adjusting the pedal height are installed at the bottom of each end of the right-angle support plate. Spring assemblies for elastically supporting the rectangular frame are located on the inner sides of each end of the right-angle support plate. Limit switches are installed at the left and right ends of the right-angle support plate, triggering a signal to stop the injection molding machine when the pedal body is subjected to force. This utility model places the safety pedal on the ground and adjusts the pedal height via screw-operated lifting feet. This increases the distance between the pedal and the injection molding platen without changing the size of the injection molding machine, improving mold applicability and maximizing space utilization. Adjusting the pedal height does not require changes to the injection molding machine frame, saving costs.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machinery technology, and in particular to an intelligent adjustable safety pedal for an injection molding machine placed on the ground. Background Technology

[0002] The safety pedal is a safety device on the mold clamping unit of an injection molding machine. When someone accidentally steps on the pedal during the operation of the injection molding machine, it triggers the limit switch and immediately sends a signal to stop the operation of the injection molding machine.

[0003] Traditional safety pedals are usually fixed to the clamping frame of the injection molding machine. The distance between the pedal body and the injection molding platen is relatively close and fixed. If it is necessary to change to a larger mold or enter the injection molding machine for cleaning, the safety pedal will restrict the operation, making it inconvenient and limiting the applicability of the mold. At the same time, if the pedal height needs to be adjusted, the clamping frame or pedal structure needs to be modified, which increases the production cost. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides an intelligent adjustable safety pedal for injection molding machines that is easy to adjust and has improved applicability and can be placed on the ground.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an intelligent adjustable safety pedal for an injection molding machine placed on the ground, having two right-angle support plates arranged front and back with their openings facing each other, a rectangular frame elastically provided between the right-angle support plates, a pedal body provided on the upper surface of the rectangular frame, screw lifting feet for adjusting the height of the pedal respectively installed at the bottom of both ends of the right-angle support plates, spring assemblies for elastically supporting the rectangular frame respectively provided on the inner side of both ends of the right-angle support plates, and limit switches that are triggered to stop the injection molding machine when the pedal body is subjected to force are respectively installed at the left and right ends of the right-angle support plates.

[0006] To prevent parts from falling into the safety pedal, protective inclined plates are fixed to the outer side of the upper surface of the right-angle support plate and one end of the rectangular frame.

[0007] Specifically, the spring assembly includes a suspension bolt, the end of the right-angle support plate has a folded plate bent toward the upper end face of the rectangular frame, the suspension bolt is suspended on the folded plate, the lower end of the suspension bolt passes through the lower end face of the right-angle support plate, and a compression spring that elastically supports the rectangular frame is fitted on the suspension bolt.

[0008] Furthermore, the upper end of the suspension bolt is fitted with an upper limit sleeve, and the lower end of the suspension bolt is fitted with a lower limit sleeve. The upper limit sleeve is pressed against the inner side of the upper end of the rectangular frame. The compression spring is located between the upper limit sleeve and the lower limit sleeve. The lower end of the suspension bolt is connected to a locking nut that is pressed against the lower limit sleeve.

[0009] Furthermore, to prevent the pedal from shifting horizontally, the outer side of the right-angle support plate is provided with a right-angle plate to control the horizontal movement of the pedal. The horizontal plate of the right-angle plate is fixed to the bottom surface of the right-angle support plate, and an adjustment elongated hole is provided on the vertical plate of the right-angle plate.

[0010] Furthermore, connecting plates are fixed at both ends of the right-angle support plate, and the limit switch is installed on the connecting plate, with the contacts of the limit switch close to the inner surfaces of both ends of the rectangular frame.

[0011] The beneficial effects of this utility model are: This utility model places the safety pedal on the ground and adjusts the pedal height by raising and lowering the foot via a screw. In this way, without changing the size of the injection molding machine, the distance between the pedal and the injection molding machine template is increased, improving the mold applicability and maximizing space utilization; the pedal height adjustment does not require changes to the injection molding machine frame, saving costs. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0014] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0015] Figure 3 This is a three-dimensional structural diagram of the present invention after the pedal body has been removed.

[0016] Figure 4 yes Figure 3 A magnified structural diagram at point B in the middle.

[0017] In the diagram: 1. Folding plate, 2. Right-angle support plate, 3. Rectangular frame, 4. Pedal body, 5. Screw lifting base, 6. Spring assembly, 6-1. Suspension bolt, 6-2. Compression spring, 6-3. Upper limit sleeve, 6-4. Lower limit sleeve, 6-5. Locking nut, 7. Limit switch, 8. Protective inclined plate, 9. Adapter plate, 10. Right-angle plate, 10-1. Adjustment elongated hole, 11. Connecting plate. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0019] like Figures 1-4The invention shown is an intelligent adjustable safety pedal for an injection molding machine placed on the ground. It includes two right-angle support plates 2 with a front-to-back spacing. The horizontal plate of the right-angle support plate 2 is located at the lower end of the vertical plate and is bent inward. A rectangular frame 3 is provided on the inner side of the vertical plate of the right-angle support plate 2. The rectangular frame 3 is spliced ​​together by four angle irons. The two long angle irons parallel to the right-angle support plate 2 have their openings facing inward, and the two short angle irons perpendicular to the right-angle support plate 2 have their openings facing outward. The pedal body 4 is installed on the upper surface of the rectangular frame 3.

[0020] The bottom of the horizontal plate of the right-angle support plate 2 is equipped with screw-type lifting feet 5 for adjusting the overall height of the pedal. Spring assemblies 6 for elastically supporting rectangular frames 3 are located on the inner sides of the vertical plates of the right-angle support plate 2. Each spring assembly 6 includes a suspension bolt 6-1. The right-angle support plate 2 has folded plates 1 at both ends that bend towards the upper surface of the rectangular frame 3. Suspension holes are provided on the folded plates 1, and the suspension bolt 6-1 is suspended within these holes. The lower end of the suspension bolt 6-1 passes through the lower surface of the horizontal plate of the right-angle support plate 2. An upper limit sleeve 6-3 is fitted onto the upper end of the suspension bolt 6-1, and a lower limit sleeve 6-3 is fitted onto the lower end of the suspension bolt 6-1. The lower limit sleeve 6-4, and the upper limit sleeve 6-3 and the lower limit sleeve 6-4 both have flanges. The flange face of the upper limit sleeve 6-3 faces upward and is pressed against the inner side of the upper end of the long angle iron of the rectangular frame 3. The flange face of the lower limit sleeve 6-4 faces downward. A compression spring 6-2 is fitted on the suspension bolt 6-1 located between the flange faces of the upper limit sleeve 6-3 and the lower limit sleeve 6-4. The lower end of the suspension bolt 6-1 is connected to a locking nut 6-5 that is pressed against the flange face of the lower limit sleeve 6-4. The spring force of the compression spring 6-2 can be adjusted by the threaded connection between the locking nut 6-5 and the suspension bolt 6-1.

[0021] The right-angle support plate 2 has connecting plates 11 fixed at its left and right ends respectively. Limit switches 7 are installed on the connecting plates 11. The contacts of the limit switches 7 are close to the inner sides of the upper ends of the short angle irons at both ends of the rectangular frame 3. When the pedal body 4 is subjected to force, it presses down on the rectangular frame 3. The inner sides of the upper ends of the short angle irons of the rectangular frame 3 contact the limit switches 7 and trigger the action. The limit switches 7 signal control the injection molding machine to stop working.

[0022] Protective inclined plates 8 are fixed to the outer side of the upper end face of the right-angle support plate 2 and the upper end face of the short angle iron on the left side of the rectangular frame 3. The length of the protective inclined plates 8 is determined according to the gap between the pedal and the injection molding machine frame after installation, so as to prevent the operator from accidentally stepping into the gap and causing injury, or for parts to fall into the gap.

[0023] To prevent the pedal from moving horizontally after installation, the outer side of the right-angle support plate 2 is provided with a right-angle plate 10. The horizontal plate of the right-angle plate 10 is fixed to the bottom surface of the horizontal plate of the right-angle support plate 2. The vertical plate of the right-angle plate 10 has an adjustment elongated hole 10-1 opened in the vertical direction. After adjusting the pedal height to meet the requirements by raising and lowering the foot 5 with a screw, the pedal is fixed to the injection molding machine frame by passing a bolt through the adjustment elongated hole 10-1.

[0024] This invention places the safety pedal on the ground without changing the size of the injection molding machine, thereby increasing the distance between the pedal and the injection molding machine template, making it applicable to a wider range of molds and maximizing space utilization. The pedal height can be adjusted by raising the foot 5 with a screw, without requiring changes to the injection molding machine frame, thus saving costs.

[0025] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A ground-mounted intelligent adjustable safety pedal for an injection molding machine, comprising two right-angled support plates (2) spaced apart front to back, characterized in that: A rectangular frame (3) is elastically provided between the right-angle support plates (2). A pedal body (4) is provided on the upper surface of the rectangular frame (3). Screw lifting feet (5) for adjusting the height of the pedal are respectively installed at the bottom of both ends of the right-angle support plates (2). Spring assemblies (6) for elastically supporting the rectangular frame (3) are respectively provided on the inner side of both ends of the right-angle support plates (2). Limit switches (7) are respectively installed at the left and right ends of the right-angle support plates (2) to trigger the action after the pedal body (4) is subjected to force and to signal the stop of the injection molding machine.

2. The intelligent adjustable safety pedal for an injection molding machine placed on the ground as described in claim 1, characterized in that: The outer side of the upper surface of the right-angle support plate (2) and one end of the rectangular frame (3) are both fixed with protective inclined plates (8).

3. The intelligent adjustable safety pedal for an injection molding machine placed on the ground as described in claim 1, characterized in that: The spring assembly (6) includes a suspension bolt (6-1), the right angle support plate (2) has a folded plate (1) bent toward the upper surface of the rectangular frame (3) at its end, the suspension bolt (6-1) is suspended on the folded plate (1), the lower end of the suspension bolt (6-1) passes through the lower surface of the right angle support plate (2), and a compression spring (6-2) that elastically supports the rectangular frame (3) is fitted on the suspension bolt (6-1).

4. The intelligent adjustable safety pedal for an injection molding machine placed on the ground as described in claim 3, characterized in that: The upper end of the suspension bolt (6-1) is fitted with an upper limit sleeve (6-3), and the lower end of the suspension bolt (6-1) is fitted with a lower limit sleeve (6-4). The upper limit sleeve (6-3) is pressed against the inner side of the upper end of the rectangular frame (3). The compression spring (6-2) is located between the upper limit sleeve (6-3) and the lower limit sleeve (6-4). The lower end of the suspension bolt (6-1) is connected to a locking nut (6-5) that is pressed against the lower limit sleeve (6-4).

5. The intelligent adjustable safety pedal for an injection molding machine placed on the ground as described in claim 1, characterized in that: The right angle support plate (2) is provided with a right angle plate (10) on its outer side to control the pedal to move in the horizontal direction. The horizontal plate of the right angle plate (10) is fixed to the bottom surface of the right angle support plate (2), and an adjustment elongated hole (10-1) is provided on the vertical plate of the right angle plate (10).

6. The intelligent adjustable safety pedal for an injection molding machine placed on the ground as described in claim 1, characterized in that: The right-angle support plate (2) is fixed with connecting plates (11) at both ends. The limit switch (7) is installed on the connecting plate (11). The contacts of the limit switch (7) are close to the inner sides of both ends of the rectangular frame (3).

Images