Powder shaping device

Abstract

The utility model relates to the technical field of packaging shaping, and particularly discloses a powder shaping device which comprises a rack main body, a lower conveying mechanism and a pressing plate mechanism, a support of the pressing plate mechanism is rotatably connected to the rack main body through two pairs of connecting rods, an adjusting mechanism is installed on the rack main body and comprises a driver, a rolling shaft and a flexible connecting piece, and the driver is connected with the rolling shaft. The flexible connecting piece is a chain or a connecting rope, one end of the flexible connecting piece is installed on the support, the other end of the flexible connecting piece is installed on the winding shaft, and the driver is used for driving the winding shaft to rotate so as to wind the flexible connecting piece. The scheme is used for solving the problem that the height of the pressing plate of the shaping device is tedious to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging and shaping, in particular to a powder shaping device. Background Art

[0002] Existing general-purpose bag-shaping mechanisms are relatively simple, typically consisting of an upper pressure plate and a lower conveyor belt. The pressure plate is hinged or connected to the main body with sliding bearings. Position adjustment is primarily achieved by rotating a screw, which drives the entire pressure plate to adjust the pressing distance. Examples include patent publication number CN202704018U for an upper pressure belt vibrating bag-shaping device and patent publication number CN205098587U for an omnidirectional bag-shaping conveyor.

[0003] However, in actual use, it is very troublesome to adjust the clamping force of this type of shaping device, and different products have different requirements for the shaping force. Moreover, because the clamping force is fixed after each adjustment, if the clamping distance is not appropriate, it will cause the product packaging bag to be damaged, leaked or not shaped, resulting in an increase in unqualified products in subsequent processes.

[0004] In addition, shaping requires ensuring that the packaging bag is located between the pressure plate and the conveyor belt. For some packaging bags that are located in the wrong position at the edge of the pressure plate during transportation, shaping cannot be performed. If the packaging bag happens to enter this position, it is easy for the packaging bag to be stuck on the shaping device; at this time, it is necessary to stop the action of the shaping device, and then manually raise the pressure plate by adjusting the screw to process the packaging bag without causing further damage. This processing method is very cumbersome because it requires turning the screw. Sometimes, in order to process quickly, the staff will directly and forcefully remove such packaging bags by themselves. However, this operation method has the problem of the packaging bag being damaged by pulling. Secondly, the entire shaping device is in working condition, and manually pulling the packaging bag will inevitably require the hand to reach between the pressure plate and the conveyor belt, which brings safety hazards. Utility Model Content

[0005] The utility model aims to provide a powder shaping device to solve the problem of complicated height adjustment of the pressing plate existing in the above shaping devices.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A powder shaping device includes a frame body, a lower conveying mechanism and a pressure plate mechanism. The bracket of the pressure plate mechanism is rotatably connected to the frame body through two pairs of connecting rods. An adjustment mechanism is installed on the frame body. The adjustment mechanism includes a driver, a winding shaft and a flexible connector. The flexible connector is a chain or a connecting rope. One end of the flexible connector is installed on the bracket and the other end is installed on the winding shaft. The driver is used to drive the winding shaft to rotate to rewind the flexible connector.

[0008] The principle and advantage of this solution are: when adopting this solution, the reel is reeled in by the driver, and the flexible connecting part is adjusted to pull up the height of the pressure plate mechanism relative to the lower conveying mechanism, so as to adjust the distance between the pressure plate mechanism and the lower conveying mechanism, that is, to adjust the height of the pressure plate mechanism. The entire adjustment process only requires controlling the driver to drive the reel to reel in. The operation is simple and convenient, which solves the problem of complicated pressure plate height adjustment in existing shaping devices.

[0009] In addition, after the height of the pressure plate can be adjusted by controlling the driver, when the packaging bag is stuck in the wrong position on the edge of the pressure plate mechanism, the driver can be directly controlled to drive the reel to rotate, so that the pressure plate mechanism can be raised, thereby facilitating the removal of the packaging bag. Because the operation is simple and convenient, it can effectively reduce the operator's erroneous operation of forcefully removing the packaging bag from the wrong position, thereby reducing the probability of safety accidents.

[0010] Preferably, as an improvement, an elastic member is connected between the frame body and the bracket, and the elastic member is a tension spring or a compression spring. In this solution, if the elastic member adopts a tension spring, then on the basis of the elastic member cooperating with the flexible connecting member, the tension spring can give the pressure plate mechanism an upward pulling force to reduce the overall pressing force of the pressure plate mechanism on the shaped packaging bag, which is suitable for some products with lower pressure requirements; and if the elastic member adopts a compression spring, it is suitable for some products with higher pressure requirements.

[0011] Preferably, as an improvement, the elastic member is located between two pairs of connecting rods.

[0012] Preferably, as an improvement, the winding shaft is located between the two pairs of connecting rods, and the connection position between the flexible connector and the bracket is located near the rotation center of the connecting rod and the bracket, so that after the winding shaft rotates, the height adjustment can be more easily and accurately controlled.

[0013] Preferably, as an improvement, a sprocket is fixed on the reeling shaft, and the flexible connecting member is a chain.

[0014] Preferably, as an improvement, it further includes a safety protection mechanism located outside the pressure plate mechanism, the safety protection mechanism includes two pull-rope switches, the rope of each pull-rope switch is arranged along the conveying mode, the switch body of the pull-rope switch is fixedly installed at one end, and the rope end of the pull-rope switch is fixedly installed at the other end. The pull-rope switch is used as an emergency stop switch to stop the pressure plate mechanism from shaping the product.

[0015] Beneficial effects: When this solution is adopted, when the shaping mechanism needs to stop, pull the rope of any pull-rope switch to trigger the pull-rope switch, and then the pressure plate mechanism stops shaping; in addition, the rope of the pull-rope switch of this solution is arranged along the conveying direction, which makes it convenient for the operator to pull the rope at different places in the conveying direction, thereby improving the convenience of controlling the pull-rope switch.

[0016] Preferably, as an improvement, the circuits of the two pull-rope switches are connected in series.

[0017] Preferably, as an improvement, it further includes a controller that is signal-connected / electrically connected to the pull-cord switch. The controller is used to control the pressure plate mechanism and the lower conveying mechanism to stop conveying after any pull-cord switch is pulled, and control the driver to drive the reel to reel in the flexible connector until the pressure plate mechanism rises to the set maximum height. When the machine needs to be shut down, this solution not only stops the shaping, but also allows the pressure plate mechanism to rise, thereby further ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model.

[0019] Figure 2 for Figure 1 Top view of .

[0020] Figure 3 for Figure 2 AA section view in. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] The reference numerals in the drawings of the specification include: frame body 10, lower conveying mechanism 20, pressure plate mechanism 30, flange 31, connecting rod 40, adjustment mechanism 50, servo motor 51, reel 52, chain 53, spring mounting seat 60, elastic member 70, pull rope switch 80, rope 81, mounting rod 21.

[0023] The embodiment is basically as shown in the attached Figures 1 to 3 shown.

[0024] A powder shaping device includes a frame body 10, a lower conveying mechanism 20 and a pressing plate mechanism 30. The bracket of the pressing plate mechanism 30 is rotatably connected to the frame body 10 through two pairs of connecting rods 40. The lower conveying mechanism 20 is a belt conveyor line, and the pressing plate mechanism 30 is also a belt conveyor line.

[0025] An adjustment mechanism 50 is installed on the frame body 10, and the adjustment mechanism 50 includes a driver 51, a winding shaft 52 and a flexible connector 53. The driver adopts a servo motor 51, and the winding shaft 52 is rotatably connected to the frame body 10. A sprocket is fixed on the winding shaft 52. The driver 51 is used to drive the sprocket to rotate. The winding shaft 52 is located between the two pairs of connecting rods 40.

[0026] The flexible connector 53 is a chain 53, and the rotating pin at the bottom of the chain 53 is rotatably connected to the flange 31. The flange 31 is fixed to the bracket. The center of the flange 31 is coaxial with the rotation center of the connecting rod 40. The top of the chain 53 is installed on the sprocket, and the chain 53 is engaged with the sprocket. The driver 51 is used to drive the winding shaft 52 to rotate to wind up the flexible connector 53.

[0027] Spring mounting seats 60 are fixed on the surfaces opposite to the bracket of the frame body 10. There are two pairs of spring mounting seats 60. The two pairs of spring mounting seats 60 are symmetrically arranged about the conveying center line of the lower conveying mechanism 20. An elastic member 70 is installed between each pair of elastic mounting seats. The elastic member 70 is a tension spring or a compression spring. The elastic member 70 is located between the two pairs of connecting rods 40.

[0028] It also includes a safety protection mechanism located outside the pressure plate mechanism 30, and the safety protection mechanism includes two pull-rope switches 80. The rope 81 of each pull-rope switch 80 is arranged along the conveying mode, the switch body of the pull-rope switch 80 is fixedly installed at one end, and the rope end of the pull-rope switch 80 is fixedly installed at the other end. The pull-rope switch 80 serves as an emergency stop switch to stop the pressure plate mechanism 30 from shaping the product; specifically, a pair of mounting rods 21 are fixed on both sides of the conveying frame of the lower conveying mechanism 20, one end of the pull-rope switch 80 is fixed on the mounting rod 21, and the rope end of the pull-rope switch 80 is fixed on the other mounting rod 21 on the same side.

[0029] The circuit of the two pull-wire switches 80 is connected in series. A controller is also included, which is signal-connected / electrically connected to the pull-wire switches 80. The controller is configured to control the pressing plate mechanism 30 and the lower conveying mechanism 20 to stop conveying when any of the pull-wire switches 80 is pulled, and to control the servo motor 51 to drive the reel 52 to reel in the chain 53 until the pressing plate mechanism 30 reaches a set maximum height.

[0030] When this embodiment is adopted, the servo motor 51 reels the reel 52, and the chain 53 is adjusted to pull the pressure plate mechanism 30 upward relative to the lower conveying mechanism 20, so as to adjust the distance between the pressure plate mechanism 30 and the lower conveying mechanism 20, that is, to adjust the height of the pressure plate mechanism 30. The entire adjustment process only requires controlling the servo motor 51 to drive the reel 52 to reel, which is simple and convenient to operate, and solves the problem of cumbersome pressure plate height adjustment in existing shaping devices.

[0031] In addition, after the height of the pressure plate can be adjusted by controlling the servo motor 51, when the packaging bag is stuck in the wrong position on the edge of the pressure plate mechanism 30, the servo motor 51 can be directly controlled to drive the reel 52 to rotate, so that the pressure plate mechanism 30 can be raised, thereby facilitating the removal of the packaging bag. Since the operation is simple and convenient, it can effectively reduce the operator's erroneous operation of forcefully removing the packaging bag from the wrong position, thereby reducing the probability of safety accidents.

[0032] To further ensure safety, when the shaping device needs to be suspended, simply pull the rope 81 of a pull-wire switch 80. Once the pull-wire switch 80 is triggered, the controller will control the pressing plate mechanism 30 and the lower conveying mechanism 20 to stop conveying, and control the servo motor 51 to drive the reel 52 to rewind the chain 53 until the pressing plate mechanism 30 reaches the set maximum height. This ensures that the shaped product is not damaged and further improves safety.

[0033] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A powder shaping device, comprising a frame body, a lower conveying mechanism, and a pressing plate mechanism, wherein the bracket of the pressing plate mechanism is rotatably connected to the frame body through two pairs of connecting rods, characterized in that: An adjustment mechanism is installed on the frame body, which includes a driver, a winding shaft and a flexible connector. The flexible connector is a chain or a connecting rope. One end of the flexible connector is installed on the bracket and the other end is installed on the winding shaft. The driver is used to drive the winding shaft to rotate to reel in the flexible connector.

2. A powder shaping device according to claim 1, characterized in that: An elastic member is connected between the frame body and the bracket, and the elastic member is a tension spring or a compression spring.

3. A powder shaping device according to claim 2, characterized in that: The elastic member is located between the two pairs of connecting rods.

4. A powder shaping device according to claim 3, characterized in that: The winding shaft is located between the two pairs of connecting rods, and the connection position between the flexible connecting piece and the bracket is located near the rotation center of the connecting rod and the bracket.

5. The powder shaping device according to claim 1, characterized in that: A sprocket is fixed on the reeling shaft, and the flexible connecting piece is a chain.

6. The powder shaping device according to claim 1, characterized in that: It also includes a safety protection mechanism located outside the pressure plate mechanism. The safety protection mechanism includes two pull-rope switches. The rope of each pull-rope switch is arranged along the conveying mode. The switch body of the pull-rope switch is fixedly installed at one end, and the rope end of the pull-rope switch is fixedly installed at the other end. The pull-rope switch is used as an emergency stop switch to stop the pressure plate mechanism from shaping the product.

7. A powder shaping device according to claim 6, characterized in that: The circuits of the two pull-rope switches are connected in series.

8. The powder shaping device according to claim 6, characterized in that: It also includes a controller that is signal-connected / electrically connected to the pull-rope switch. The controller is used to control the pressure plate mechanism and the lower conveying mechanism to stop conveying after any pull-rope switch is pulled, and control the driver to drive the reel to reel in the flexible connector until the pressure plate mechanism rises to the set maximum height.

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