Discharge door mechanism, mixing device and discharge control method

Abstract

The present invention relates to the technical field of concrete mixing, and provides a discharge door mechanism, a mixing device and a discharge control method. Among them, the discharge door mechanism includes: a first linear drive mechanism, a second linear drive mechanism and a door body; the door body includes a first side and a second side arranged oppositely, the first ends of the first linear drive mechanism and the second linear drive mechanism are respectively rotatably connected to the first side and the second side of the door body, and the second ends of the first linear drive mechanism and the second linear drive mechanism are both rotatably arranged; the door body is used to be arranged at the discharge port of the mixing device to block and open the discharge port. Under the driving action of the first linear drive mechanism and the second linear drive, the door body is pressed against the discharge port, so that a good fit can always be maintained between the door body and the discharge port. Compared with the relatively serious rotational wear of the fixed-axis type discharge door in the prior art, the discharge door provided by the present invention has less wear and a longer service life.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete mixing, and particularly relates to a discharge door mechanism, a mixing device and a discharge control method. Background Art

[0002] The discharge door of the existing concrete device is mainly a fixed-axis type discharge door. Specifically, the door body has an arc-shaped structure, and the door body is rotatably arranged at the discharge port of the housing through a fixed rotating shaft for blocking and opening the discharge port. This fixed-axis type discharge door mainly opens the discharge port by rotating, and the gap between the door body and the housing cannot be adjusted, so the door body and the housing are prone to wear, and it is easy to have poor sealing after being used for a period of time.

[0003] Therefore, how to solve the problem that the gap between the discharge door and the housing cannot be adjusted after wear in the prior art is a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a discharge door mechanism and a mixing device to solve the defect that the gap between the discharge door and the housing cannot be adjusted after wear in the prior art.

[0005] Another purpose of the present invention is to provide a discharge control method to solve the problem that the discharge door in the prior art can only perform unilateral discharge.

[0006] The present invention provides a discharge door mechanism, including: a first linear driving mechanism, a second linear driving mechanism and a door body for blocking and opening the discharge port;

[0007] The door body includes a first side and a second side arranged oppositely. The first ends of the first linear driving mechanism and the second linear driving mechanism are respectively rotatably connected to the first side and the second side of the door body, and the second ends of the first linear driving mechanism and the second linear driving mechanism are both rotatably arranged;

[0008] The first linear driving mechanism can drive the first side of the door body to be separated from or abutted against the first side of the discharge port, and the second linear driving mechanism can drive the second side of the door body to be separated from or abutted against the second side of the discharge port.

[0009] According to the discharge door mechanism provided by the present invention, curved surface structures protruding from the door body are arranged on both the first side and the second side of the door body, and the two curved surface structures are respectively used for abutting against the door edges on both sides of the discharge port.

[0010] According to the discharge door mechanism provided by the present invention, a sealing structure is arranged on each of the curved surface structures for sealing between the door body and the door edge.

[0011] According to a discharge door mechanism provided by the present invention, the sealing structure includes a groove provided on the curved surface structure and a seal installed in the groove, and the seal is used to abut against the door edge.

[0012] According to a discharge door mechanism provided by the present invention, a wear-resistant lining is provided at one end of the door body facing the discharge port.

[0013] According to a discharge door mechanism provided by the present invention, the middle part of the wear-resistant lining bulges away from the door body, and the heights on both sides of the wear-resistant lining do not exceed the height of the middle part of the wear-resistant lining, and both sides of the wear-resistant lining are connected to the middle part of the wear-resistant lining through inclined surface structures.

[0014] According to a discharge door mechanism provided by the present invention, the first linear driving mechanism and the second linear driving mechanism are respectively arranged on both sides of the door body; alternatively, the first linear driving mechanism and the second linear driving mechanism are arranged in a crossed form.

[0015] According to a discharge door mechanism provided by the present invention, the discharge door mechanism further includes:

[0016] A door body movement monitor for monitoring the movement state of the door body;

[0017] A controller, the controller is respectively connected to the door body movement monitor, the first linear driving mechanism and the second linear driving mechanism, and the controller is used to receive the signal sent by the door body movement monitor and is used to control the operation of the first linear driving mechanism and the second linear driving mechanism.

[0018] According to a discharge door mechanism provided by the present invention, the number of the first linear driving mechanisms and the number of the second linear driving mechanisms are both set to at least two, at least two of the first linear driving mechanisms are distributed at both ends of the door body, and at least two of the second linear driving mechanisms are distributed at both ends of the door body.

[0019] According to a discharge door mechanism provided by the present invention, the first linear driving mechanism includes a cylinder, an oil cylinder or an electric push rod;

[0020] The second linear driving mechanism includes a cylinder, an oil cylinder or an electric push rod.

[0021] According to a discharge door mechanism provided by the present invention, a first rotating shaft is provided on the first side of the door body, a second rotating shaft is provided on the second side of the door body, a first connection hole is provided at the first end of the first linear driving mechanism, a second connection hole is provided at the first end of the second linear driving mechanism, and the first rotating shaft and the second rotating shaft are respectively rotatably inserted into the first connection hole and the second connection hole.

[0022] The present invention also provides a stirring device, including: the discharge door mechanism described in any one of the above.

[0023] The present invention also provides a discharge control method, which is implemented based on the discharge door mechanism described in any one of the above, including:

[0024] Receiving a discharge instruction;

[0025] Based on the discharge instruction, controlling the first linear driving mechanism to drive the first side of the door body to move in a direction away from the first side of the discharge port, and controlling the second linear driving mechanism to drive the second side of the door body to abut against the second side of the discharge port;

[0026] Or, based on the discharge instruction, controlling the first linear driving mechanism to drive the first side of the door body to abut against the first side of the discharge port, and controlling the second linear driving mechanism to drive the second side of the door body to move in a direction away from the second side of the discharge port;

[0027] Or, based on the discharge instruction, controlling the first linear driving mechanism to drive the first side of the door body to move in a direction away from the first side of the discharge port, and controlling the second linear driving mechanism to drive the second side of the door body to move in a direction away from the second side of the discharge port.

[0028] According to the discharge control method provided by the present invention, the step of, based on the discharge instruction, controlling the first linear driving mechanism to drive the first side of the door body to move in a direction away from the first side of the discharge port, and controlling the second linear driving mechanism to drive the second side of the door body to move in a direction away from the second side of the discharge port, includes:

[0029] Based on the discharge instruction, controlling the first linear driving mechanism to drive the first side of the door body to move in a direction away from the first side of the discharge port, and when the movement state of the first side of the door body is monitored to be abnormal, controlling the second linear driving mechanism to drive the second side of the door body to move a first preset distance in a direction away from the second side of the discharge port;

[0030] Or,

[0031] Based on the discharging instruction, control the second linear driving mechanism to drive the second side of the door body to move in a direction away from the second side of the discharge port. When the movement state of the second side of the door body is monitored to be abnormal, control the first linear driving mechanism to drive the first side of the door body to move a second preset distance in a direction away from the first side of the discharge port.

[0032] The discharging door mechanism provided by the present invention drives the door body to open and close through the first linear driving mechanism and the second linear driving mechanism. On the one hand, under the driving action of the first linear driving mechanism and the second linear driving, the door body is pressed against the discharge port, so that a good fit can always be maintained between the door body and the discharge port. On the one hand, compared with the relatively serious rotational wear of the fixed-axis type discharging door in the prior art, the discharging door provided by the present invention has less wear and a longer service life. On the other hand, even if the gap between the discharging door and the discharge port becomes larger after wear, under the drive of the first linear driving mechanism and the second linear driving mechanism, the door body can move towards the discharge port to press against the discharge port, reducing the gap and achieving the effect of self-adapting the closing gap.

[0033] Further, in the mixing device provided by the present invention, due to having the discharging door mechanism as described above, it also has various advantages as described above.

[0034] Due to the discharging door mechanism in the form of a traditional fixed-axis structure, the gap between the discharging door and the door edge cannot be avoided. After installation and commissioning are completed and the gap is confirmed, it cannot be adjusted during the production process. Due to manufacturing and installation errors and the characteristics of the concrete produced, problems such as the door body being stuck due to cement caking or coarse aggregate embedding in the gap are likely to occur, making the main machine discharging door unable to open or close.

[0035] The discharging control method provided by the present invention can perform discharging on either side, and both sides can also perform discharging simultaneously, compared with the fixed-axis type discharging door in the prior art that can only perform single-side discharging. This increases the usage methods of the discharging door mechanism and gives it a wider application prospect. And when the side of the door body connected to the first linear driving mechanism has problems such as material receiving and jamming and cannot be opened, the second linear driving mechanism drives the door body to move a first preset distance, such as 2 - 5 mm, away from the discharge port to reduce the resistance, so that the resistance of the door body is reduced and the door body can be prevented from being unable to open. The same applies to the side of the door body connected to the second linear driving mechanism. Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 It is a schematic structural diagram of a discharge door mechanism provided in some embodiments of the present invention;

[0038] Figure 2 is Figure 1 a left view of the shown discharge door mechanism;

[0039] Figure 3 It is a schematic structural diagram of a stirring device provided in some embodiments of the present invention;

[0040] Figure 4 is Figure 3 a schematic structural diagram when the stirring device in discharges materials;

[0041] Figure 5 It is a schematic structural diagram when the door body covers the discharge port in some embodiments of the present invention;

[0042] Figure 6 is Figure 5 a partial enlarged view of ;

[0043] Figure 7 It is a kinematic schematic diagram of the discharge door mechanism in some embodiments of the present invention;

[0044] Figure 8 It is a kinematic schematic diagram of the discharge door mechanism in some embodiments of the present invention

[0045] Reference numerals:

[0046] 1: First linear drive mechanism; 2: Second linear drive mechanism; 3: Door body; 4: Curved surface structure; 5: Sealing member; 6: Wear-resistant lining; 7: Stirring device; 8: Door edge. Detailed implementation manners

[0047] To make the objectives, technical solutions, and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the drawings in the present invention. Obviously, the described embodiments are some embodiments of the present invention, rather than all of them. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0048] The following will be described in conjunction with Figures 1 to 8Describe the discharge door mechanism in the embodiments provided by the present invention.

[0049] Specifically, the discharge door mechanism includes a first linear drive mechanism 1, a second linear drive mechanism 2, and a door body 3.

[0050] Refer to Figure 1 、 Figure 2 As shown, wherein the door body 3 has a first side and a second side which are oppositely arranged. The first end of the first linear drive mechanism 1 and the first end of the second linear drive mechanism 2 are respectively rotatably connected to the first side and the second side of the door body 3.

[0051] The first linear drive mechanism 1 can drive the first side of the door body 3 to disengage from or abut against the first side of the discharge port, and the second linear drive mechanism 2 can drive the second side of the door body 3 to disengage from or abut against the second side of the discharge port.

[0052] In this embodiment, the first linear drive mechanism 1 can drive the first side of the door body 3 to disengage from or abut against the first side of the discharge port, which can be understood as that the first linear drive mechanism 1 can drive the first side of the door body 3 to switch between the state of disengaging from the first side of the discharge port and the state of abutting against the first side of the discharge port. The second linear drive mechanism 2 can drive the second side of the door body 3 to disengage from or abut against the second side of the discharge port, which can be understood as that the second linear drive mechanism 2 can drive the second side of the door body 3 to switch between the state of disengaging from the second side of the discharge port and the state of abutting against the second side of the discharge port.

[0053] Further, refer to Figure 3 、 Figure 4 As shown, the rotation axis between the first side of the door body and the first end of the first linear drive mechanism is perpendicular to the moving direction of the first linear drive mechanism. The rotation axis between the second side of the door body and the first end of the second linear drive mechanism is perpendicular to the moving direction of the second linear drive mechanism. Of course, in other embodiments, the rotation axis between the first side of the door body and the first end of the first linear drive mechanism can also be set at an acute angle or an obtuse angle with the displacement direction of the first linear drive mechanism; the rotation axis between the second side of the door body and the first end of the second linear drive mechanism can also be set at an acute angle or an obtuse angle with the displacement direction of the second linear drive mechanism. In this regard, this embodiment does not make a limitation.

[0054] Refer to Figure 3 、 Figure 4 As shown, the second ends of the first linear drive mechanism 1 and the second linear drive mechanism 2 are both rotatably arranged. For example, the second ends of the first linear drive mechanism 1 and the second linear drive mechanism 2 are both rotatably connected to the housing of the mixing device or the frame. Optionally, the rotatable connection can be realized through a hinge structure.

[0055] The door body 3 is used to be arranged at the discharge port of the stirring device to block and open the discharge port.

[0056] Take Figure 3 and Figure 4 as an example. In the blocked state, the first linear drive mechanism 1 and the second linear drive mechanism 2 simultaneously generate a pulling force on the door body 3 to press the door body 3 against the discharge port, thereby blocking the discharge port. Even if the door body 3 becomes thinner due to wear, resulting in an increase in the gap between the door body 3 and the discharge port, under the action of the first linear drive mechanism 1 and the second linear drive mechanism 2, it can still fit perfectly with the discharge port.

[0057] When the door body 3 opens the discharge port for discharging, there are three discharging forms.

[0058] As Figure 4 shown, take the posture of the discharging door mechanism placed in the figure as an example. In the figure, the first linear drive mechanism 1 on the left side extends, driving the left side of the door body 3 to move downward. The second linear drive mechanism 2 on the right side still pulls the right side of the door body 3, making the right side of the door body 3 abut against the door edge 8 on the right side of the discharge port. At this time, discharging from the left side can be carried out. And by pressing the right side of the door body 3 against the right door edge 8 through the second linear drive mechanism 2 on the right side, the door body 3 can be kept stable during the discharging process from the left side, avoiding the door body 3 from shaking.

[0059] Similarly, when the second linear drive mechanism 2 on the right side extends, driving the right side of the door body 3 to move downward, the first linear drive mechanism 1 on the left side pulls the left side of the door body 3, making the left side of the door body 3 abut against the door edge 8 on the left side of the discharge port. At this time, discharging from the right side can be carried out. And by pressing the left side of the door body 3 against the left door edge 8 through the first linear drive mechanism 1 on the left side, the door body 3 can be kept stable during the discharging process from the right side, avoiding the door body 3 from shaking.

[0060] When the first linear drive mechanism 1 and the second linear drive mechanism 2 extend simultaneously, the door body 3 descends as a whole. At this time, discharging can be carried out simultaneously from the left side and the right side of the discharge port.

[0061] It should be noted that the "left side" and "right side" mentioned in this article are for the convenience of narration and do not limit the protection scope of this application in any way.

[0062] In the discharge door mechanism provided in the embodiments of the present invention, the door body 3 is driven to open and close by the first linear drive mechanism 1 and the second linear drive mechanism 2. On the one hand, under the driving action of the first linear drive mechanism 1 and the second linear drive, the door body 3 is pressed against the discharge port, so that a good fit can be always maintained between the door body 3 and the discharge port, and it has good adaptability to the gap between the door body 3 and the discharge port. On the other hand, compared with the problem of relatively serious rotational wear of the fixed-axis type discharge door in the prior art, in the discharge door mechanism provided by the present invention, there is no rotational friction between the door body 3 and the discharge port, so the wear is smaller and the service life is longer. On the other hand, even if the gap between the discharge door and the discharge port becomes larger after wear, under the drive of the first linear drive mechanism and the second linear drive mechanism, the door body can move towards the discharge port to closely fit the discharge port, making the gap smaller, achieving the effect of self-adaptation of the closing gap.

[0063] In addition, compared with the fixed-axis type discharge door in the prior art that can only discharge on one side, any side of the discharge door provided by the present invention can discharge, and the two sides of the discharge door can also discharge simultaneously.

[0064] Finally, due to the discharge door mechanism in the form of a traditional fixed-axis structure, the gap between the discharge door and the door edge 8 is inevitable. After the installation and commissioning are completed and the gap is confirmed, it cannot be adjusted during the production process. Due to manufacturing and installation errors and the characteristics of the concrete produced, problems such as the door body 3 being stuck due to cement caking or coarse aggregate embedding in the gap are likely to occur, making the main machine discharge door unable to open or close.

[0065] However, the discharge door mechanism in the embodiments provided by the present invention has no fixed axis, so there is no fixed closing gap, and self-adaptation of the opening and closing gaps can be realized. And, as Figure 2 、 Figure 3 shown, when there are phenomena such as material receiving and material jamming on the left side during discharge, for example, when it is difficult to open the first linear drive mechanism 1, the second linear drive mechanism 2 on the right side gives a certain extended length, such as 2 - 5 mm, to reduce the resistance, so that the opening resistance on the left side is reduced, avoiding the door body 3 from being unable to open. The same applies to the right side.

[0066] Refer to Figure 5 、 Figure 6 shown, in some embodiments provided by the present invention, curved surface structures 4 protruding from the door body 3 are provided on both the first side and the second side of the door body 3. The two curved surface structures 4 are respectively used to abut against the door edges 8 on both sides of the discharge port.

[0067] As Figure 6As shown, taking the posture shown in the figure as an example, when the door body 3 is opened to the left, the curved surface structure 4 on the right side can always keep in contact with the door edge 8, thereby improving the sealing effect on the right side and preventing concrete from leaking between the right side of the door body 3 and the door edge 8 on the right side during the left-side discharging process. When discharging on the right side, it is the same as above.

[0068] In some embodiments provided by the present invention, a sealing structure is provided on each of the curved surface structures 4, and the sealing structure is used to seal the door body 3 and the door edge 8. By providing the sealing structure, the sealing effect between the door body 3 and the discharge port can be improved.

[0069] Moreover, by arranging the sealing structure on the curved surface structure 4, during the unilateral discharging process, the sealing structure between the non-discharging side of the discharge port and the door body 3 can always keep in contact with the door edge 8, so that there is also a good sealing effect between the non-discharging side of the discharge port and the door body 3.

[0070] Furthermore, the sealing structure includes a groove provided on the curved surface structure 4 and a sealing member 5 installed in the groove, and the sealing member 5 is used to contact the door edge 8. With such an arrangement, the structure of the sealing structure is simple and convenient to set. For example, the sealing member 5 can be a sealing strip. By providing the groove, the positioning effect on the sealing member 5 can be improved to prevent the sealing member 5 from shifting.

[0071] In some embodiments provided by the present invention, a wear-resistant lining plate 6 is provided at one end of the door body 3 facing the discharge port. By providing the wear-resistant lining plate 6, the wear-resistant effect of the door body 3 during the stirring and discharging processes can be improved, the wear of the door body 3 can be reduced, and the service life of the door body 3 can be extended.

[0072] As Figure 5 shown, in some embodiments provided by the present invention, the middle part of the wear-resistant lining plate 6 protrudes away from the door body 3. The heights on both sides of the wear-resistant lining plate are not higher than the height of the middle part of the wear-resistant lining plate, and both sides of the wear-resistant lining plate are connected to the middle part of the wear-resistant lining plate through inclined surface structures. That is, in the direction from the middle of the door body 3 to the first side of the door body 3, the first side of the wear-resistant lining plate 6 gradually inclines towards the direction close to the door body 3. In the direction from the middle of the door body 3 to the second side of the door body 3, the second side of the wear-resistant lining plate 6 gradually inclines towards the direction close to the door body 3.

[0073] By setting the wear-resistant lining plate 6 to a structure with a high middle and low sides, on the one hand, the dead corner area during the production and stirring process of the stirring device can be effectively reduced, that is, the area that the stirring blades cannot stir, so that the concrete will not accumulate on the door body 3. In other words, when the concrete in the stirring device runs onto the door body 3 under the action of the stirring blades, under the action of the wear-resistant lining plate 6, the concrete can slide to the covered area of the stirring blades, thereby improving the uniformity of concrete stirring.

[0074] On the other hand, as Figure 4 shown, taking the posture shown in the figure as an example, when the discharge door mechanism discharges on the left side, the sealing structure on the left side is located below, and the middle convex of the wear-resistant lining plate 6 can play a role in guiding the discharged concrete, avoiding the wear of the sealing structure caused by the concrete flushing the sealing structure during the discharging process, thus effectively protecting the sealing structure and prolonging the service life of the sealing structure. When discharging on the right side, it is the same reason.

[0075] As Figure 3 , Figure 4 and Figure 8 shown, in some embodiments provided by the present invention, the first linear driving mechanism 1 and the second linear driving mechanism 2 are respectively arranged on both sides of the door body 3.

[0076] Taking the state where the door body 3 seals the discharge port as an example.

[0077] Optionally, as Figure 3 shown, the first linear driving mechanism 1 and the second linear driving mechanism 2 are arranged on both sides of the door body 3, and the first linear driving mechanism 1 and the second linear driving mechanism 2 can be arranged above the door body 3, and the door body 3 seals at the discharge port under the pulling force of the first linear driving mechanism 1 and the second linear driving mechanism 2.

[0078] Optionally, as Figure 8 shown, the first linear driving mechanism 1 and the second linear driving mechanism 2 are arranged on both sides of the door body 3, and the first linear driving mechanism 1 and the second linear driving mechanism 2 can also be arranged below the door body 3, and the door body 3 seals at the discharge port under the thrust of the first linear driving mechanism 1 and the second linear driving mechanism.

[0079] Furthermore, the first linear driving mechanism 1 and the second linear driving mechanism 2 are symmetrically arranged on both sides of the door body 3.

[0080] Of course, the setting forms of the first linear driving mechanism 1 and the second linear driving mechanism 2 are not limited to the form of being arranged on both sides of the door body as described above.

[0081] For example, as Figure 7 shown, in other embodiments provided by the invention, the first linear driving mechanism 1 and the second linear driving mechanism 2 are arranged in a cross form.

[0082] Still taking the state where the door body 3 seals the discharge port as an example.

[0083] Optionally, as Figure 7 shown, the first linear driving mechanism 1 and the second linear driving mechanism 2 are cross-arranged, and the first linear driving mechanism 1 and the second linear driving mechanism 2 can be arranged below the door body 3, and the door body 3 seals at the discharge port under the thrust of the first linear driving mechanism 1 and the second linear driving mechanism.

[0084] When discharging from the left side, the second linear driving mechanism 2 shortens to pull down the left side of the door body 3, and the first linear driving mechanism 1 maintains the thrust unchanged to press the right side of the door body 3 against the door edge 8 on the right side of the discharge port. At this time, discharging from the left side can be carried out. And by pressing the right side of the door body 3 against the right door edge 8 by the first linear driving mechanism 1, the door body 3 can be kept stable during the left-side discharging process, avoiding the shaking of the door body 3.

[0085] When discharging from the right side, the first linear driving mechanism 1 shortens to pull down the right side of the door body 3, and the second linear driving mechanism 2 maintains the thrust unchanged to press the left side of the door body 3 against the door edge 8 on the left side of the discharge port. At this time, discharging from the right side can be carried out. And by pressing the left side of the door body 3 against the left door edge 8 by the second linear driving mechanism 2, the door body 3 can be kept stable during the right-side discharging process, avoiding the shaking of the door body 3.

[0086] Optionally, the first linear driving mechanism 1 and the second linear driving mechanism 2 are arranged in a cross manner, and the first linear driving mechanism 1 and the second linear driving mechanism 2 can be arranged above the door body 3. The door body 3 is blocked at the discharge port under the pulling force of the first linear driving mechanism 1 and the second linear driving mechanism.

[0087] Reference Figure 2 As shown, in some embodiments provided by the present invention, the number of the first linear driving mechanisms 1 and the number of the second linear driving mechanisms 2 are both set to be at least two.

[0088] At least two first linear driving mechanisms 1 are distributed at both ends of the door body 3.

[0089] At least two second linear driving mechanisms 2 are distributed at both ends of the door body 3.

[0090] With such a setting, the overall rigidity of the discharge door mechanism can be increased, and the running stability of the door body 3 can be improved.

[0091] In some embodiments provided by the present invention, the first linear driving mechanism 1 includes a cylinder, an oil cylinder or an electric push rod. The second linear driving mechanism 2 includes a cylinder, an oil cylinder or an electric push rod.

[0092] For example, the first ends of the first linear driving mechanism 1 and the second linear driving mechanism 2 can both be rotatably connected to the door body 3 in a hinged manner.

[0093] Further, a first rotating shaft is provided on the first side of the door body, and a second rotating shaft is provided on the second side of the door body. A first connection hole is provided at the first end of the first linear driving mechanism, and a second connection hole is provided at the first end of the second linear driving mechanism. The first rotating shaft and the second rotating shaft are respectively rotatably inserted into the first connection hole and the second connection hole. With such a setting, the connection structure between the first linear driving mechanism and the second linear driving mechanism and the door body is simpler.

[0094] Reference Figure 3 、 Figure 4 As shown in the figure, the telescopic direction of the first linear driving mechanism is perpendicular to the first rotating shaft, and the telescopic direction of the second linear driving mechanism is perpendicular to the second rotating shaft.

[0095] In some embodiments provided by the present invention, the discharging door mechanism further includes: a door body movement monitor and a controller.

[0096] Among them, the door body movement monitor is used to detect the movement state of the door body, such as including but not limited to a displacement sensor and a position sensor.

[0097] The controller is respectively connected to the door body movement monitor, the first linear driving mechanism and the second linear driving mechanism. The controller is used to receive the signal sent by the door body movement monitor and to control the operation of the first linear driving mechanism and the second linear driving mechanism. With such a setting, the controller can control the actions of the first linear driving mechanism and the second linear driving mechanism based on the state of the door body.

[0098] For example, when the door body movement monitor detects that the first side of the door body is stuck, the information of the stuck door on the first side can be transmitted to the controller, and the controller controls the second linear driving mechanism on the second side to extend a certain length to reduce the resistance to opening the door body and facilitate opening the door body. When the door body movement monitor detects that the second side of the door body is stuck, the information of the stuck door on the second side can be transmitted to the controller, and the controller controls the first linear driving mechanism on the first side to extend a certain length to reduce the resistance to opening the door body and facilitate opening the door body.

[0099] Of course, the above-mentioned various parts can be combined.

[0100] For example, in some embodiments provided by the present invention, a discharging door mechanism includes a first linear driving mechanism 1, a second linear driving mechanism 2 and a door body 3. The first end of the first linear driving mechanism 1 and the first end of the second linear driving mechanism 2 are respectively rotatably connected to both sides of the door body 3, and the second ends of the first linear driving mechanism 1 and the second linear driving mechanism 2 are both rotatably arranged.

[0101] The first linear driving mechanism 1 and the second linear driving mechanism 2 are respectively arranged on both sides of the door body 3. Or, the first linear driving mechanism 1 and the second linear driving mechanism 2 are arranged in a crossed form.

[0102] The number of the first linear driving mechanisms 1 and the number of the second linear driving mechanisms 2 are both set to be at least two. At least two first linear driving mechanisms 1 are distributed at both ends of the door body 3, and at least two second linear driving mechanisms are distributed at both ends of the door body 3.

[0103] The first linear driving mechanism 1 includes a cylinder, an oil cylinder or an electric push rod. The first linear driving mechanism 1 includes a cylinder, an oil cylinder or an electric push rod

[0104] The door body 3 is used to be arranged at the discharge port of the mixing device to block and open the discharge port.

[0105] Curved surface structures 4 protruding away from the door body 3 are arranged on both sides of the door body 3. The two curved surface structures 4 are respectively used to abut against the door edges 8 on both sides of the discharge port. Sealing structures are arranged on each of the curved surface structures 4. The sealing structures are used to seal the door body 3 and the door edge 8. The sealing structure includes a groove arranged on the curved surface structure 4 and a seal 5 installed in the groove. The seal 5 is used to abut against the door edge 8.

[0106] A wear-resistant lining plate 6 is arranged at one end of the door body 3 facing the discharge port. The part of the wear-resistant lining plate 6 close to the middle of the door body 3 protrudes away from the door body 3. And in the direction from the middle of the door body 3 to the first side of the door body 3, the first side of the wear-resistant lining plate 6 gradually inclines towards the direction close to the door body 3. In the direction from the middle of the door body 3 to the second side of the door body 3, the second side of the wear-resistant lining plate 6 gradually inclines towards the direction close to the door body 3.

[0107] For the discharging door mechanism in the embodiments provided by the present invention, the door body 3 is driven to open and close by the first linear driving mechanism 1 and the second linear driving mechanism 2. On the one hand, under the driving action of the first linear driving mechanism 1 and the second linear driving mechanism, the door body 3 is pressed tightly against the discharge port, so that a good fit can be always maintained between the door body 3 and the discharge port, and it has a good adaptability to the gap between the door body 3 and the discharge port. On the other hand, compared with the relatively serious rotational wear of the fixed-axis discharging door in the prior art, for the discharging door mechanism provided by the present invention, there is no rotational friction between the door body 3 and the discharge port, so the wear is smaller and the service life is longer.

[0108] In addition, compared with the fixed-axis discharging door in the prior art that can only discharge materials on one side, any side of the discharging door provided by the present invention can discharge materials, and the two sides of the discharging door can also discharge materials simultaneously.

[0109] Finally, due to the discharge door mechanism with the traditional fixed-axis structure form, the gap between the discharge door and the door edge 8 is inevitable and after installation and commissioning are completed and the gap is confirmed, it cannot be adjusted during the production process. Due to manufacturing and installation errors and the characteristics of the concrete produced, problems such as the door body 3 getting stuck due to cement caking or coarse aggregate embedding in the gap are likely to occur, making the main machine discharge door unable to open or close.

[0110] However, the discharge door mechanism in the embodiment provided by the present invention has no fixed axis, so there is no fixed closing gap, and the adaptability of the opening and closing gap can be realized. And, as Figure 2 、 Figure 3 shown, when there are phenomena such as material receiving and jamming during left-side discharging, in the case where the first linear drive mechanism 1 has difficulty in opening, the second linear drive mechanism 2 on the right gives a certain extended length, such as 2 - 5 mm, to reduce the resistance, so that the left-side opening resistance is reduced and the situation where the door body 3 cannot be opened is avoided. The same applies to the right side.

[0111] The embodiment provided by the present invention also provides a mixing device 7, including the discharge door mechanism as described in any one of the above.

[0112] As Figures 3 to 5 shown, the mixing device 7 generally includes a mixing main machine. The mixing main machine includes a silo and a mixing mechanism arranged in the silo, and a discharge port is arranged at the bottom of the silo. The door body is arranged at the discharge port to block and open the discharge port. The second ends of the first linear drive mechanism and the second linear drive mechanism are both hinged to the silo.

[0113] During use, when unilateral discharging is required, one of the first linear drive mechanism and the second linear drive mechanism drives one side of the door body to move away from the discharge port, and the other presses the other side of the door body against the discharge port. When bilateral discharging is required, the first linear drive mechanism and the second linear drive mechanism simultaneously drive both sides of the door body to move away from the door body.

[0114] The mixing device 7 includes the discharge door mechanism and thus includes all its advantages, which will not be elaborated here.

[0115] It should be noted that the mixing device 7 can be a mixing tower, a mixing plant or a mixer.

[0116] The embodiment provided by the present invention also provides a discharge control method, which is implemented based on the discharge door mechanism as described in any one of the above.

[0117] Specifically, the discharge control method includes:

[0118] Receive a discharging instruction. It should be noted that the discharging instruction can be a detection signal, an instruction generated by a controller, or an instruction from a user. For example, the user's instruction can refer to the user's manual operation of a certain component, or the user's touch or voice control operation, etc.

[0119] Based on the discharging instruction, control the first linear drive mechanism to drive the first side of the door body to move in a direction away from the first side of the discharge port, and control the second linear drive mechanism to drive the second side of the door body to abut against the second side of the discharge port. At this time, the first side of the discharge port is opened, and discharging can be carried out through the first side.

[0120] Alternatively, based on the discharging instruction, control the first linear drive mechanism to drive the first side of the door body to abut against the first side of the discharge port, and control the second linear drive mechanism to drive the second side of the door body to move in a direction away from the second side of the discharge port. At this time, the second side of the discharge port is opened, and discharging can be carried out through the second side.

[0121] Alternatively, based on the discharging instruction, control the first linear drive mechanism to drive the first side of the door body to move in a direction away from the first side of the discharge port. And control the second linear drive mechanism to drive the second side of the door body to move in a direction away from the second side of the discharge port. At this time, both sides of the discharge port are opened, and discharging can be carried out simultaneously on both sides.

[0122] The discharging control method in the embodiments provided by the present invention can perform single-side discharging and can also perform simultaneous discharging on both sides, and the discharging control method is more flexible.

[0123] In some embodiments provided by the present invention, based on the discharging instruction, controlling the first linear drive mechanism to drive the first side of the door body to move in a direction away from the first side of the discharge port, and controlling the second linear drive mechanism to drive the second side of the door body to move in a direction away from the second side of the discharge port includes:

[0124] Based on the discharging instruction, control the first linear drive mechanism to drive the first side of the door body to move in a direction away from the first side of the discharge port, and when the movement state of the first side of the door body is monitored to be abnormal, control the second linear drive mechanism to drive the second side of the door body to move a first preset distance in a direction away from the second side of the discharge port.

[0125] Or,

[0126] Based on the discharging instruction, control the second linear drive mechanism to drive the second side of the door body to move in a direction away from the second side of the discharge port, and when the movement state of the second side of the door body is monitored to be abnormal, control the first linear drive mechanism to drive the first side of the door body to move a second preset distance in a direction away from the first side of the discharge port.

[0127] The abnormal movement state of the door body includes, but is not limited to, the door body being unable to open due to material receiving or jamming.

[0128] When material receiving or jamming occurs on one side of the door body, resulting in the problem that this side of the door body cannot be opened, at this time, open the other side of the door body by a certain distance to reduce the opening resistance of the door body, making it easier to open the door body.

[0129] Optionally, door body movement monitors are respectively arranged on both sides of the door body to respectively detect the opening states of the opposite sides of the door body. For example, the door body movement monitors include, but are not limited to, displacement sensors and position sensors. By arranging the door body movement monitors, it can be detected whether the two sides of the door body move, so as to determine whether the door body is normally opened.

[0130] For example, the door body movement monitor, the first linear drive mechanism and the second linear drive mechanism are all electrically connected to the controller. During the process of the controller controlling the first linear drive mechanism to drive the first side of the door body to open, if the door body movement monitor detects that there is no movement on the first side of the door body, it sends a door jamming signal to the controller, and the controller controls the second linear drive mechanism to act based on the door jamming signal, driving the door body to open a first preset distance. The opening method of the second side of the door body is the same.

[0131] Optionally, both the first preset distance and the second preset distance can be set to 2mm - 5mm.

[0132] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A discharge door mechanism, characterized in that, it includes: a first linear drive mechanism (1), a second linear drive mechanism (2), and a door body (3) for blocking and opening the discharge port; The door body (3) includes a first side and a second side arranged opposite to each other. The first end of the first linear drive mechanism (1) and the first end of the second linear drive mechanism (2) are respectively rotatably connected to the first side of the door body (3) and the second side of the door body (3), and the second ends of the first linear drive mechanism (1) and the second linear drive mechanism (2) are both rotatably arranged; The first linear drive mechanism (1) can drive the first side of the door body (3) to disengage from or abut against the first side of the discharge port, and the second linear drive mechanism (2) can drive the second side of the door body (3) to disengage from or abut against the second side of the discharge port; One of the first linear drive mechanism and the second linear drive mechanism drives one side of the door body to move away from the discharge port, and the other presses the other side of the door body against the discharge port; Curved surface structures (4) protruding from the door body (3) are provided on both the first side and the second side of the door body (3), and the two curved surface structures (4) are respectively used to abut against the door edges (8) on both sides of the discharge port; A wear-resistant lining plate (6) is provided at one end of the door body (3) facing the discharge port. The middle of the wear-resistant lining plate (6) protrudes away from the door body (3), and the heights on both sides of the wear-resistant lining plate (6) do not exceed the height of the middle of the wear-resistant lining plate (6). Both sides of the wear-resistant lining plate (6) are connected to the middle of the wear-resistant lining plate (6) through inclined surface structures.

2. The discharge door mechanism according to claim 1, characterized in that, Sealing structures are provided on each of the curved surface structures (4), and the sealing structures are used to seal the door body (3) and the door edge (8).

3. The discharge door mechanism according to claim 2, characterized in that, The sealing structure includes a groove provided on the curved surface structure (4) and a seal (5) installed in the groove, and the seal (5) is used to abut against the door edge (8).

4. The discharge door mechanism according to claim 1, characterized in that, A first rotating shaft is provided on the first side of the door body, a second rotating shaft is provided on the second side of the door body, a first connection hole is provided at the first end of the first linear drive mechanism, a second connection hole is provided at the first end of the second linear drive mechanism, and the first rotating shaft and the second rotating shaft are respectively rotatably inserted into the first connection hole and the second connection hole.

5. A stirring device (7), characterized in that, it includes the discharge door mechanism according to any one of claims 1-4.

6. A discharge control method, characterized in that, It is implemented based on the discharge door mechanism according to any one of claims 1-4, and includes: Receiving a discharge instruction; Based on the discharging instruction, control the first linear driving mechanism to drive the first side of the door body to move in a direction away from the first side of the discharging port, and control the second linear driving mechanism to drive the second side of the door body to abut against the second side of the discharging port; Alternatively, based on the discharging instruction, control the first linear driving mechanism to drive the first side of the door body to abut against the first side of the discharging port, and control the second linear driving mechanism to drive the second side of the door body to move in a direction away from the second side of the discharging port; Alternatively, based on the discharging instruction, control the first linear driving mechanism to drive the first side of the door body to move in a direction away from the first side of the discharging port, and control the second linear driving mechanism to drive the second side of the door body to move in a direction away from the second side of the discharging port.

7. The discharging control method according to claim 6, characterized in that the controlling the first linear driving mechanism to drive the first side of the door body to move in a direction away from the first side of the discharging port, and controlling the second linear driving mechanism to drive the second side of the door body to move in a direction away from the second side of the discharging port based on the discharging instruction includes: Based on the discharging instruction, control the first linear driving mechanism to drive the first side of the door body to move in a direction away from the first side of the discharging port. When the movement state of the first side of the door body is monitored to be abnormal, control the second linear driving mechanism to drive the second side of the door body to move a first preset distance in a direction away from the second side of the discharging port; Or Based on the discharging instruction, control the second linear driving mechanism to drive the second side of the door body to move in a direction away from the second side of the discharging port. When the movement state of the second side of the door body is monitored to be abnormal, control the first linear driving mechanism to drive the first side of the door body to move a second preset distance in a direction away from the first side of the discharging port.

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