Constant temperature type sealing machine with double anti-error protection

Abstract

The utility model discloses a constant temperature type sealing machine with double anti-error protection, which comprises a rack, a control electric box is arranged on one side close to the upper part of the rack, a sealing cylinder is arranged on the other side opposite to the upper part of the rack, a telescopic rod at the bottom of the sealing cylinder is vertically connected with an upper heating block, the upper heating block extends along the horizontal direction, and the lower heating block extends along the horizontal direction. A lower heating block which is parallel to the upper heating block and matched with the upper heating block is fixedly installed on the portion, below the upper heating block, of the machine frame, a first emergency stop switch is arranged on the control electric box, a second emergency stop switch is installed on the side, close to the lower heating block, of the lower portion of the machine frame, and the second emergency stop switch is a mechanical switch. The second emergency stop switch is configured in the mode that when the second emergency stop switch is mechanically touched and reaches a preset stroke, the control electric box controls the sealing air cylinder to rebound and reset. According to the constant-temperature type sealing machine with the double anti-error protection function, double protection can be conducted when operation errors occur, and then harm to personnel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing machine equipment, in particular to a constant temperature sealing machine with double anti-error protection. Background Art

[0002] Pneumatic sealing machine is a novel gas-electric integrated packaging machine. It is an indispensable means in the field of soft material, storage, and moisture-proof transportation of products. It uses compressed air as power and seals through electrical pulse technology to make the sealing material smooth, stiff and effective.

[0003] However, there is a problem that the operator is easily pinched when the cylinder is in motion. Although an emergency stop switch is also provided on the chassis of the sealing machine, it is not convenient for the operator to stop the machine in time. Therefore, there is still a certain risk of pinching the operator. Utility Model Content

[0004] The embodiment of the present application provides a constant temperature sealing machine with double anti-error protection, which can conveniently and quickly drive the sealing cylinder to rebound and reset through the cooperation of the first emergency stop switch and the second emergency stop switch, thereby avoiding serious personal injury when the operator makes an operating error.

[0005] An embodiment of the present application provides a constant temperature sealing machine with double anti-error protection, including a frame, a control electrical box is provided on one side of the frame close to the upper part, and a sealing cylinder is provided on the other side opposite to the upper part, a telescopic rod at the bottom of the sealing cylinder is vertically connected to an upper heating block, and the upper heating block extends in a horizontal direction, and a lower heating block parallel to and cooperating with the upper heating block is fixedly installed on the frame below the upper heating block, a first emergency stop switch is provided on the control electrical box, and a second emergency stop switch is installed on the lower part of the frame on a side close to the lower heating block, the second emergency stop switch is a mechanical switch, and the second emergency stop switch is configured as follows: when it is mechanically touched and reaches a predetermined stroke, the control electrical box controls the sealing cylinder to rebound and reset.

[0006] In a possible implementation, there are two sealing cylinders, and the two sealing cylinders are arranged in parallel in the same height direction, and the two sealing cylinders are connected to the upper heating block at the same time.

[0007] In a possible implementation, the upper heating block and the lower heating block are both copper blocks.

[0008] In a possible implementation, universal wheels are respectively installed at four corners of the bottom of the frame.

[0009] In a possible implementation, a positioning shaft is vertically connected between the two universal wheels on the front side of the lower part of the frame, and the front side refers to a side close to the lower heating block;

[0010] The second emergency stop switch includes a movable plate, a switch paddle and a mechanical switch, wherein the top end of the movable plate and the positioning shaft are hinged so that the movable plate remains in a state of extending in the vertical direction in the initial state, and the switch paddle includes a connecting plate and a paddle, one end of the connecting plate is vertically connected to the inner side of the movable plate, and the connecting plate is connected to the paddle at the top of the other end, and the paddle extends obliquely upward close to the movable plate, the mechanical switch cooperates with the paddle, and the electrical signal of the mechanical switch is connected to the control electrical box, so that when the movable plate rotates around the positioning shaft and drives the paddle to swing inward, the mechanical switch can be triggered, and then the sealing cylinder is controlled to rebound and reset through the control electrical box.

[0011] In a possible implementation, a guide channel cooperating with the paddle is provided at the bottom of the housing of the mechanical switch, and a contact is provided at the top of the guide channel so that the paddle can move along the guide channel and touch the contact.

[0012] In a possible implementation, the movable plate is hinged to the positioning shaft through two opposite ends at the top, and a gap is formed between the hinge positions at the two ends of the movable plate.

[0013] Beneficial effect: Compared with the prior art, the thermostatic sealing machine with double error-proof protection provided by the present application can facilitate nearby workers to emergency stop the sealing cylinder with the help of the first emergency stop switch, so that the sealing cylinder can rebound and reset quickly. At the same time, it can also facilitate the operator to emergency stop the sealing cylinder with the help of the second emergency stop switch, so that the sealing cylinder can rebound and reset quickly, thereby achieving double protection, and can avoid further serious personal injury when the operator makes an operating error;

[0014] The simultaneous pressurization of two sealing cylinders can increase the sealing pressure, improve the heat penetration rate, and make the sealing surface smoother and firmer;

[0015] By providing a notch near the middle of the top of the movable plate, the overall weight of the movable plate can be reduced while ensuring the structural strength of the movable plate, making it easier for the operator to quickly trigger the second emergency stop switch by foot.

[0016] These and other purposes, features and advantages of the present invention are fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1The three-dimensional structural schematic diagram of the constant temperature sealing machine with double anti-error protection of the present application is shown.

[0018] Figure 2 A rear view structural schematic diagram of the second emergency stop switch in the present application is shown.

[0019] Figure 3 A side cross-sectional structural schematic diagram of the second emergency stop switch in the present application is shown. DETAILED DESCRIPTION

[0020] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0021] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0022] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0023] refer to Figures 1 to 3, the embodiment of the present application provides a constant temperature sealing machine with double anti-error protection, including a frame 10. The frame 10 is provided with a control electric box 20 on one side close to the upper part, and a sealing cylinder 30 on the other side opposite to the upper part, wherein the control electric box 20 is located on the rear side, and the sealing cylinder 30 is located on the front side, that is, the side operated by the operator. The telescopic rod 31 at the bottom of the sealing cylinder 30 is vertically connected to the upper heating block 32, and the upper heating block 32 extends in the horizontal direction, and the frame 10 is fixedly installed with a lower heating block 33 parallel to and cooperating with the upper heating block 32 below the upper heating block 32, and the upper heating block 32 is driven downward by the sealing cylinder 30 to cooperate with the lower heating block 33 to perform heat sealing. In addition, a first emergency stop switch is provided on the control electrical box 20, and a second emergency stop switch 40 is installed on the lower part of the frame 10 on one side close to the lower heating block 33, and the second emergency stop switch 40 is a mechanical switch, and the second emergency stop switch 40 is configured as follows: when it is mechanically touched and reaches a predetermined stroke, the control electrical box 20 controls the sealing cylinder 30 to rebound and reset. In this way, once the operator makes an operating error, nearby personnel can emergency stop the sealing cylinder 30 through the first emergency stop switch, cut off the heating and pressure maintaining state of the sealing cylinder 30, and make the sealing cylinder 30 rebound and reset quickly. If there are no people nearby, even if someone nearby operates the first emergency stop switch, it will not affect the operator to trigger the second emergency stop switch 40 by his feet. Thereby, double protection can be formed, which can avoid further serious personal injury when the operator makes an operating error.

[0024] In the actual working process, the sealing cylinder 30 is generally pressed down, driving the upper heating block 32 to move down to the lower heating block 33, and the downward pressure is maintained to maintain the pressure. The packaging bag achieves the effect of internal heat fusion under the clamping action of the upper heating block 32 and the lower heating block 33. After the set pressure holding time is reached, the sealing cylinder 30 automatically rebounds and the packaging bag is sealed. Therefore, if the operator makes an operation error and puts his hand between the upper heating block 32 and the lower heating block 33, there are two situations. First, it is difficult to directly operate the first emergency stop switch by hand. Second, if the sealing cylinder 30 cannot be controlled to rebound and reset, then the hand will be clamped between the upper heating block 32 and the lower heating block 33 whose temperature continues to rise until the pressure holding ends, and the consequences will be disastrous. At this time, the operator can use his feet to trigger the second emergency stop switch 40, so that the sealing cylinder 30 quickly rebounds and resets, forming double protection, thereby avoiding or reducing personal injuries caused by operating errors as much as possible.

[0025] In one embodiment, there are two sealing cylinders 30, and the two sealing cylinders 30 are distributed in parallel at the same height direction, and the two sealing cylinders 30 are connected to the upper heating block 32 at the same time, so that under the action of the control electrical box 20, the two sealing cylinders 30 can be controlled to press down at the same time for sealing, or rebound and reset at the same time, which can provide stronger downward force, improve heat penetration rate, and make the sealing surface smoother and stronger.

[0026] In one embodiment, the upper heating block 32 and the lower heating block 33 are both copper blocks, such as T2 copper, which has the advantages of fast heat transfer and fast temperature rise.

[0027] In one embodiment, universal wheels 11 are installed at four corners of the bottom of the frame 10 to facilitate the movement of the sealing machine. After being moved into place, the self-locking function of the universal wheels 11 can ensure the working stability of the sealing machine.

[0028] Further preferably, a positioning shaft 12 is vertically connected between the two universal wheels 11 at the front side of the lower part of the frame 10;

[0029] The second emergency stop switch 40 includes a movable plate 41, a switch paddle 42 and a mechanical switch 43, wherein the top end of the movable plate 41 and the positioning shaft 12 are hinged, so that the movable plate 41 remains in a state of extending in the vertical direction in the initial state. In this way, the operator can directly kick the movable plate 41 with his feet to make the movable plate 41 perform a yaw motion with the positioning shaft 12 as the rotation axis. The switch paddle 42 includes a connecting plate 421 and a paddle 422, wherein one end of the connecting plate 421 is vertically connected to the inner side of the movable plate 41, and the connecting plate 421 is connected to the paddle 422 at the top of the other end, wherein the paddle 422 extends obliquely upward close to the movable plate 41, and the mechanical switch 43 cooperates with the paddle 422, and the electrical signal of the mechanical switch 43 is connected to the control electrical box 20, so that when the movable plate 41 rotates around the positioning axis 12 and drives the paddle 422 to swing inward, the mechanical switch 43 can be triggered, and then the sealing cylinder 30 is controlled to rebound and reset through the control electrical box 20.

[0030] Furthermore, the shell of the mechanical switch 43 is provided with a guide channel 402 at the bottom, which cooperates with the paddle 422, and a contact 431 is provided at the top of the guide channel 402, so that the paddle 422 can move along the guide channel 402 and touch the contact 431, thereby triggering the second emergency stop switch 40, so that the guide paddle 422 can be limited by the guide channel 402, which can further improve the effective triggering rate of the second emergency stop switch 40.

[0031] In one embodiment, the movable plate 41 is hinged to the positioning shaft 12 through two opposite ends at the top, and a notch 401 is provided between the hinged positions at the two ends of the movable plate 41, so that the overall weight of the movable plate 41 can be reduced through the notch 401. The movable plate 41 is hinged to the positioning shaft 12 through the two ends without the notch 401, so that the difficulty of the operator to quickly trigger the second emergency stop switch 40 can be reduced by reducing the weight of the movable plate 41 on the basis of ensuring the structural strength of the movable plate 41. In addition, the notch 401 is located at the top, not the bottom, so that the movable plate 41 can ensure that the lower part has a larger weight as much as possible under the condition of its own weight. When the movable plate 41 is kicked, the movable plate 41 can drive the paddle to trigger the mechanical switch 43 more stably and powerfully, so that the probability of effectively triggering the second emergency stop switch 40 can be increased and the probability of trigger failure can be reduced.

[0032] It should be noted that the terms "first, second" in the present application are only used for descriptive purposes and do not indicate any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0033] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. Constant temperature sealing machine with double error protection, characterized by: The invention comprises a frame, wherein a control electric box is provided on one side of the frame close to the upper part, and a sealing cylinder is provided on the other side opposite to the upper part, a telescopic rod at the bottom of the sealing cylinder is vertically connected to an upper heating block, and the upper heating block extends in a horizontal direction, and a lower heating block which is parallel to and cooperates with the upper heating block is fixedly installed on the frame below the upper heating block, a first emergency stop switch is provided on the control electric box, and a second emergency stop switch is installed on the lower part of the frame on a side close to the lower heating block, the second emergency stop switch is a mechanical switch, and the second emergency stop switch is configured as follows: when a predetermined stroke is reached by mechanical touch, the control electric box controls the sealing cylinder to rebound and reset.

2. The constant temperature sealing machine with double error prevention protection as claimed in claim 1, characterized in that: There are two sealing cylinders, and the two sealing cylinders are arranged in parallel in the same height direction, and the two sealing cylinders are connected to the upper heating block at the same time.

3. The constant temperature sealing machine with double error prevention protection as claimed in claim 1, characterized in that: The upper heating block and the lower heating block are both copper blocks.

4. The constant temperature sealing machine with double error prevention protection as claimed in claim 1, characterized in that: Universal wheels are respectively installed at four corners of the bottom of the frame.

5. The constant temperature sealing machine with double error prevention protection as claimed in claim 4, characterized in that: A positioning shaft is vertically connected between the two universal wheels on the front side of the lower part of the frame, and the front side refers to the side close to the lower heating block; The second emergency stop switch includes a movable plate, a switch paddle and a mechanical switch, wherein the top end of the movable plate and the positioning shaft are hinged so that the movable plate remains in a state of extending in the vertical direction in the initial state, and the switch paddle includes a connecting plate and a paddle, one end of the connecting plate is vertically connected to the inner side of the movable plate, and the connecting plate is connected to the paddle at the top of the other end, and the paddle extends obliquely upward close to the movable plate, the mechanical switch cooperates with the paddle, and the electrical signal of the mechanical switch is connected to the control electrical box, so that when the movable plate rotates around the positioning shaft and drives the paddle to swing inward, the mechanical switch can be triggered, and then the sealing cylinder is controlled to rebound and reset through the control electrical box.

6. The constant temperature sealing machine with double error prevention protection as claimed in claim 5, characterized in that: The housing of the mechanical switch is provided with a guide channel matched with the paddle at the bottom, and a contact is provided at the top of the guide channel so that the paddle can move along the guide channel and touch the contact.

7. The constant temperature sealing machine with double error prevention protection as claimed in claim 5, characterized in that: The movable plate is hinged to the positioning shaft through two opposite ends at the top, and a notch is provided between the hinged positions at the two ends of the movable plate.

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