A fertilizer anti-caking rate measuring device

Abstract

This invention relates to the field of measuring equipment technology, specifically to a fertilizer anti-caking rate measuring device, comprising a base, a squeezing frame on the base, the squeezing frame including a first fixed plate and a second fixed plate fixedly connected, a squeezing plate slidably disposed between the first fixed plate and the second fixed plate, the squeezing plate, the first fixed plate and the second fixed plate being arranged in parallel, the distance between the squeezing plate and the second fixed plate being adjustable, a driving mechanism on the base, the driving mechanism being able to drive the squeezing frame to rotate around a horizontal axis, thereby enabling the squeezing frame to have a vertical state and a horizontal state, a pressing mechanism being disposed on the side of the first fixed plate away from the squeezing plate, the pressing mechanism being able to automatically drive the squeezing plate when the squeezing frame is in a horizontal state, so that the squeezing plate can press multiple fertilizer packaging bags, and automatically release the squeezing plate when the squeezing frame is in a vertical state, thus improving the detection efficiency of fertilizer anti-caking rate while ensuring detection accuracy.

Description

Technical Field

[0001] This invention relates to the field of measuring equipment technology, and in particular to a fertilizer anti-caking rate measuring device. Background Technology

[0002] Clumped fertilizers, due to their loss of free flow, negatively impact fertilizer production and use. For example, when applying clumped fertilizer, uneven fertilization can result in some crops not absorbing nutrients, while others may wither due to root poisoning caused by excessively high nutrient levels in their surrounding environment, leading to reduced yields and economic losses. Therefore, it is necessary to test the anti-caking properties of fertilizers.

[0003] In the prior art, patent document CN216386982U discloses an automated auxiliary device for testing the anti-caking performance of fertilizers. The device involves starting a drive motor, which rotates a shaft via a coupling. The shaft moves a slide downwards, which in turn moves a sliding plate downwards. The sliding plate then moves two connecting blocks downwards, which in turn move two fixed blocks downwards, thereby causing a movable plate to move downwards. This pressure is used to compress the fertilizer being tested, simulating the pressure during normal storage. However, when batch testing multiple fertilizer bags, these auxiliary devices require vertical stacking. Due to gravity, each fertilizer bag experiences different pressures, thus affecting the testing efficiency of the anti-caking rate. Summary of the Invention

[0004] Therefore, it is necessary to provide a fertilizer anti-caking rate measuring device to address the technical problem of low detection efficiency in current fertilizer anti-caking performance testing devices.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A fertilizer anti-caking rate measuring device includes a base with a squeezing frame mounted on it. The squeezing frame includes a first fixed plate and a second fixed plate fixedly connected together. A squeezing plate is slidably disposed between the first and second fixed plates. The squeezing plate, the first fixed plate, and the second fixed plate are all parallel to each other. The distance between the squeezing plate and the second fixed plate is adjustable, and multiple fertilizer packaging bags can be placed between the squeezing plate and the second fixed plate, with the fertilizer packaging bags parallel to the squeezing plate. The base also has a driving mechanism that can drive the squeezing frame to rotate around a horizontal axis, thereby allowing the squeezing frame to have a vertical and a horizontal state. When the squeezing frame is in a horizontal state, the first fixed plate, the squeezing plate, and the second fixed plate are all vertical and sequentially distributed along the horizontal direction. When the squeezing frame is in a vertical state, the first fixed plate, the squeezing plate, and the second fixed plate are all horizontal and sequentially distributed along the vertical direction. A pressing mechanism is provided on the side of the first fixed plate away from the squeezing plate. The pressing mechanism can automatically drive the squeezing plate when the squeezing frame is in a horizontal state, so that the squeezing plate can press multiple fertilizer packaging bags, and automatically release the squeezing plate when the squeezing frame is in a vertical state.

[0007] Furthermore, the pressing mechanism includes a first gear, a first rack, a counterweight, and a transmission mechanism; a first rotating shaft is coaxially fixed on the first gear, and a movable bracket is provided on the first fixed plate. The first rotating shaft is rotatably mounted on the movable bracket and is parallel to the first fixed plate; the first rack is perpendicular to the pressing plate, one end of the first rack is fixedly connected to the pressing plate, and the other end passes through the first fixed plate and corresponds to the first gear; a connecting rope is provided on the counterweight, the connecting rope passes around the first rotating shaft and connects to the first fixed plate, and the connecting rope is in frictional engagement with the first rotating shaft; the transmission mechanism is located between the counterweight and the movable bracket; when the pressing frame is in a horizontal state, the counterweight hangs down under its own weight and pulls the first rotating shaft through the connecting rope, so that the first gear can mesh with the first rack. At the same time, the rotation of the first gear drives the first rack to slide, and then the first rack drives the pressing plate to squeeze the fertilizer packaging bag; when the pressing frame is in a vertical state, the counterweight presses the transmission mechanism under its own weight, so that the transmission mechanism drives the movable bracket to move away from the first rack, thereby disengaging the first gear from the first rack.

[0008] Furthermore, the extrusion frame also includes a base plate, which is perpendicular to and fixedly connected to the first fixed plate and the second fixed plate. When the extrusion frame is in a horizontal state, the base plate is supported on the base. The transmission mechanism includes a drive frame, which is slidably mounted on the base plate. The drive frame includes a first drive plate and a second drive plate that are perpendicular to and fixedly connected. The first drive plate is parallel to the first fixed plate, and the second drive plate is perpendicular to the first fixed plate. The second drive plate and the movable bracket are connected by a sloping sliding fit. When the extrusion frame is in a vertical state, the counterweight can press the first drive plate under its own weight, causing the first drive plate to slide in a direction perpendicular to the first fixed plate. This allows the second drive plate to push the movable bracket to slide away from the base plate on the first fixed plate, thereby driving the first gear away from the first rack.

[0009] Furthermore, the second drive plate is provided with a first inclined block, and the movable bracket is fixedly provided with a second guide rod. The second guide rod is arranged parallel to the first fixed plate and perpendicular to the base plate. The second guide rod is provided with a second inclined block, and the first inclined block and the second inclined block are slidably engaged by inclined surfaces.

[0010] Furthermore, two first guide rods are fixedly provided on the side of the first fixed plate away from the extrusion plate. The first guide rods are parallel to the first rack. The first drive plate can slide along the first guide rods. A first spring is sleeved on the first guide rod. The first spring has a tendency to move the first drive plate away from the first fixed plate. A second spring is provided on the second guide rod. The second spring has a tendency to move the second guide rod towards the bottom plate.

[0011] Furthermore, the extrusion plate is also provided with a second rack, which is arranged parallel to the first rack. A transmission gear is rotatably provided on the first fixed plate. The second drive plate meshes with the transmission gear, and the second rack passes through the first fixed plate and meshes with the transmission gear. Thus, when the counterweight presses the first drive plate, the second drive plate drives the second rack to move through the transmission gear, causing the second rack to pull the extrusion plate away from the second fixed plate.

[0012] Furthermore, the transmission gear includes an intermediate gear and side gears on both sides of the intermediate gear. The intermediate gear meshes with the second rack, and the side gears mesh with the second drive plate.

[0013] Furthermore, the first fixed plate and the extrusion plate are each provided with a sliding plate on their opposite sides, and multiple rotating rollers are rotatably provided on the sliding plate, the rotating rollers being evenly distributed in a direction perpendicular to the base plate.

[0014] Furthermore, a guide rod is provided between the first fixing plate and the second fixing plate, the guide rod is perpendicular to the extrusion plate, and the extrusion plate can slide along the guide rod.

[0015] Furthermore, the driving mechanism is a hydraulic telescopic rod, which is rotatably mounted on the base around a horizontal axis and is connected to the second fixed plate.

[0016] The beneficial effects of this invention are:

[0017] The fertilizer anti-caking rate measuring device provided by the present invention has the following characteristics: First, in use, multiple fertilizer packaging bags can be placed between the extrusion plate and the second fixed plate at one time. Then, the drive mechanism is controlled to rotate the extrusion frame to a horizontal state, and the extrusion plate extrudes multiple fertilizer packaging bags simultaneously. Since the multiple fertilizer packaging bags are horizontally distributed, they are not affected by gravity, and the extrusion pressure on each fertilizer packaging bag is basically the same. This can improve the detection efficiency of fertilizer anti-caking rate while ensuring detection accuracy.

[0018] Secondly, since the pressing mechanism can automatically drive the pressing plate when the pressing frame is in a horizontal state, so that the pressing plate presses multiple fertilizer packaging bags, and automatically releases the pressing plate when the pressing frame is in a vertical state, it is convenient to take out and put away fertilizer packaging bags, which can further improve the detection efficiency of fertilizer anti-caking rate. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a fertilizer anti-caking rate measuring device provided in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 3 This is a side view schematic diagram of a fertilizer anti-caking rate measuring device provided in an embodiment of the present invention;

[0022] Figure 4 This is a top view schematic diagram of a fertilizer anti-caking rate measuring device provided in an embodiment of the present invention;

[0023] Figure 5 for Figure 4 BB cross-sectional view;

[0024] Figure 6 for Figure 4 CC section view;

[0025] Figure 7 for Figure 6 Enlarged view of the structure at point D;

[0026] Figure 8 This is a three-dimensional structural diagram of the fertilizer anti-caking rate measuring device provided in an embodiment of the present invention, in which the extrusion frame is in a vertical state;

[0027] Figure 9This is a side view of the fertilizer anti-caking rate measuring device provided in an embodiment of the present invention, in which the extrusion frame is in a vertical position;

[0028] Figure 10 This is a cross-sectional view of the extrusion frame in a vertical position in a fertilizer anti-caking rate measuring device provided in an embodiment of the present invention.

[0029] in:

[0030] 101. Base; 102. Hydraulic base; 103. Hydraulic telescopic rod; 104. Extrusion frame; 1041. First fixing plate; 1042. Second fixing plate; 1043. Guide rod; 1044. Base plate; 1045. First guide rod; 1046. First spring; 1047. Hinge shaft; 1048. Sliding plate; 105. Fertilizer packaging bag; 106. Extrusion plate; 1061. First rack; 1062. Second... 107. Rack; 1071. Movable bracket; 1072. First gear; 1073. First rotating shaft; 108. Drive frame; 1081. First drive plate; 1082. Second drive plate; 1083. First inclined block; 109. Transmission gear; 1091. Intermediate gear; 1092. Side gear; 110. Second guide rod; 1101. Second spring; 1102. Second inclined block; 111. Counterweight; 1111. Connecting rope. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0032] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] like Figures 1 to 10 As shown, an embodiment of the present invention provides a fertilizer anti-caking rate measuring device, including a base 101. An extrusion frame 104 is provided on the base 101. The extrusion frame 104 includes a first fixing plate 1041 and a second fixing plate 1042 fixedly connected. An extrusion plate 106 is slidably disposed between the first fixing plate 1041 and the second fixing plate 1042. The extrusion plate 106, the first fixing plate 1041, and the second fixing plate 1042 are all arranged parallel to each other. The distance between the extrusion plate 106 and the second fixing plate 1042 is adjustable, and multiple fertilizer packaging bags 105 can be placed between the extrusion plate 106 and the second fixing plate 1042. The fertilizer packaging bags 105 are parallel to the extrusion plate 106. A driving mechanism is also provided on the base 101, which can drive the extrusion... The frame 104 rotates around a horizontal axis, thus allowing the extrusion frame 104 to have both a vertical and a horizontal state. When the extrusion frame 104 is in a horizontal state, the first fixing plate 1041, the extrusion plate 106, and the second fixing plate 1042 are all vertical and distributed sequentially along the horizontal direction. When the extrusion frame 104 is in a vertical state, the first fixing plate 1041, the extrusion plate 106, and the second fixing plate 1042 are all horizontal and distributed sequentially along the vertical direction. A pressing mechanism is provided on the side of the first fixing plate 1041 away from the extrusion plate 106. The pressing mechanism can automatically drive the extrusion plate 106 when the extrusion frame 104 is in a horizontal state, so that the extrusion plate 106 can press multiple fertilizer packaging bags 105, and automatically release the extrusion plate 106 when the extrusion frame 104 is in a vertical state.

[0035] In use, multiple fertilizer packaging bags 105 can be placed between the extrusion plate 106 and the second fixed plate 1042 at one time. Then, the drive mechanism is controlled to rotate the extrusion frame 104 to a horizontal state. The extrusion plate 106 extrudes multiple fertilizer packaging bags 105 simultaneously. Since the multiple fertilizer packaging bags 105 are horizontally distributed, they are not affected by gravity. The extrusion pressure on each fertilizer packaging bag 105 is basically the same, which can improve the detection efficiency of fertilizer anti-caking rate and ensure detection accuracy.

[0036] In addition, since the pressing mechanism can automatically drive the pressing plate 106 when the pressing frame 104 is in a horizontal state, so that the pressing plate 106 presses multiple fertilizer packaging bags 105, and automatically releases the pressing plate 106 when the pressing frame 104 is in a vertical state, it is convenient to take out and put in the fertilizer packaging bags 105, which can further improve the detection efficiency of fertilizer anti-caking rate.

[0037] Furthermore, the clamping mechanism includes a first gear 1071, a first rack 1061, a counterweight 111, and a transmission mechanism. A first rotating shaft 1072 is coaxially fixed on the first gear 1071, and a movable bracket 107 is provided on the first fixed plate 1041. The first rotating shaft 1072 is rotatably mounted on the movable bracket 107, and the first rotating shaft 1072 is parallel to the first fixed plate 1041. The first rack 1061 is perpendicular to the pressing plate 106, with one end of the first rack 1061 fixedly connected to the pressing plate 106, and the other end passing through the first fixed plate 1041 and corresponding to the first gear 1071.

[0038] The counterweight 111 is provided with a connecting rope 1111, which passes around the first rotating shaft 1072 and connects to the first fixed plate 1041, and the connecting rope 1111 and the first rotating shaft 1072 are in frictional engagement; the transmission mechanism is located between the counterweight 111 and the movable bracket 107; Figures 1 to 7 As shown, when the extrusion frame 104 is in a horizontal state, the counterweight 111 hangs down under its own weight and pulls the first rotating shaft 1072 through the connecting rope 1111, so that the first gear 1071 can mesh with the first rack 1061. At the same time, the rotation of the first gear 1071 drives the first rack 1061 to slide, and then the first rack 1061 drives the extrusion plate 106 to extrude the fertilizer packaging bag 105; Figures 8 to 10 As shown, when the extrusion frame 104 is in a vertical position, the counterweight 111 presses the transmission mechanism under its own weight, causing the transmission mechanism to drive the movable bracket 107 to move away from the first rack 1061, thereby disengaging the first gear 1071 from the first rack 1061.

[0039] The weight of the counterweight 111 is adjustable and can be adjusted according to the number of fertilizer packaging bags 105.

[0040] like Figure 1 and Figure 2As shown, the extrusion frame 104 also includes a base plate 1044, which is perpendicular to and fixedly connected to the first fixed plate 1041 and the second fixed plate 1042. When the extrusion frame 104 is in a horizontal state, the base plate 1044 is supported on the base 101. The transmission mechanism includes a drive frame 108, which is slidably disposed on the base plate 1044. The base plate 1044 is provided with clearance holes, and the drive frame 108 slides along the clearance holes. The drive frame 108 includes a first drive plate 1081 and a second drive plate 1082 that are vertically and fixedly connected. The first drive plate 1081 is parallel to the first fixed plate 1041, and the second drive plate 1082 is perpendicular to the first fixed plate 1041. The second drive plate 1082 and the movable bracket 107 are connected by a sliding engagement through an inclined surface. When the pressing frame 104 is in a vertical state, the counterweight 111 can press the first drive plate 1081 under its own weight, causing the first drive plate 1081 to slide in a direction perpendicular to the first fixed plate 1041. As a result, the second drive plate 1082 can push the movable bracket 107 to slide on the first fixed plate 1041 in a direction away from the base plate 1044, thereby driving the first gear 1071 away from the first rack 1061.

[0041] like Figure 6 and Figure 7 As shown, the second drive plate 1082 is provided with a first inclined block 1083, and the movable bracket 107 is fixedly provided with a second guide rod 110. The second guide rod 110 is arranged parallel to the first fixed plate 1041 and perpendicular to the base plate 1044. The second guide rod 110 is provided with a second inclined block 1102, and the first inclined block 1083 and the second inclined block 1102 are slidably engaged by the inclined surface.

[0042] Furthermore, two first guide rods 1045 are fixedly mounted on the side of the first fixed plate 1041 away from the extrusion plate 106. The first guide rods 1045 are parallel to the first rack 1061. The first drive plate 1081 can slide along the first guide rods 1045. A first spring 1046 is sleeved on the first guide rods 1045. The first spring 1046 has a tendency to move the first drive plate 1081 away from the first fixed plate 1041. A second spring 1101 is mounted on the second guide rod 110. The second spring 1101 has a tendency to move the second guide rod 110 towards the base plate 1044. Specifically, the first fixed plate 1041 is also provided with a fixing ear. The second guide rod 110 slides along the fixing ear, and the second spring 1101 is engaged with the fixing ear for blocking.

[0043] The first guide rod 1045 is set to facilitate the sliding of the first drive plate 1081. The first spring 1046 can cause the first drive plate 1081 to reset. The second spring 1101 can cause the movable bracket 107 to reset, so that when the extrusion frame 104 changes from a vertical state to a horizontal state, the first gear 1071 and the first rack 1061 can automatically mesh.

[0044] like Figure 2 As shown, the extrusion plate 106 is also provided with a second rack 1062, which is arranged parallel to the first rack 1061. A transmission gear 109 is rotatably provided on the first fixed plate 1041. The second drive plate 1082 meshes with the transmission gear 109, and the second rack 1062 passes through the first fixed plate 1041 and meshes with the transmission gear 109. Thus, when the counterweight 111 presses the first drive plate 1081, the second drive plate 1082 drives the second rack 1062 to move through the transmission gear 109, causing the second rack 1062 to pull the extrusion plate 106 away from the second fixed plate 1042.

[0045] This allows the extrusion plate 106 to be automatically lifted away from the fertilizer packaging bag 105 when the extrusion frame 104 is in a vertical position, making it easier to pick up and put down the fertilizer packaging bag 105.

[0046] like Figure 7 As shown, the transmission gear 109 includes an intermediate gear 1091 and side gears 1092 located on both sides of the intermediate gear 1091 along its axial direction. The intermediate gear 1091 meshes with the second rack 1062, and the side gears 1092 mesh with the second drive plate 1082. The second drive plate 1082 has a meshing section corresponding to the side gears 1092 (not shown in the figure). The transmission gear 109 is fixedly mounted on the first fixed plate 1041 by a connecting bracket.

[0047] like Figure 5 As shown, the second fixed plate 1042 and the extrusion plate 106 are each provided with a sliding plate 1048 on their opposite sides. Multiple rotating rollers are rotatably mounted on the sliding plate 1048, and these rollers are evenly distributed along a direction perpendicular to the base plate 1044. When a fertilizer packaging bag 105 is placed inside the extrusion frame 104, the fertilizer packaging bag 105 can slide along the rollers to get close to the base plate 1044, reducing sliding resistance.

[0048] Furthermore, a guide rod 1043 is provided between the first fixing plate 1041 and the second fixing plate 1042. The guide rod 1043 is perpendicular to the extrusion plate 106, and the extrusion plate 106 can slide along the guide rod 1043.

[0049] Furthermore, the driving mechanism is a hydraulic telescopic rod 103, which is rotatably mounted on the base 101 about a horizontal axis and is connected to the second fixed plate 1042. A hydraulic seat 102 is also fixedly mounted on the base 101, and the extrusion frame 104 is hinged to the hydraulic seat 102 via a hinge shaft 1047. Two hydraulic telescopic rods 103 are rotatably mounted on the hydraulic seat 102.

[0050] Based on the above embodiments, the usage principle and working process of the present invention are as follows:

[0051] In the initial state, the compression frame 104 is in a vertical position, the counterweight 111 compresses the first drive plate 1081, and the first gear 1071 disengages from the first rack 1061.

[0052] Then, multiple fertilizer packaging bags 105 are placed between the extrusion plate 106 and the second fixed plate 1042, and a counterweight 111 of appropriate weight is configured on the connecting rope 1111. Then, the hydraulic telescopic rod 103 is extended to make the extrusion frame 104 horizontal. At this time, the counterweight 111 hangs down under the action of gravity. Since the counterweight 111 no longer extrudes the first drive plate 1081, the first drive plate 1081 is reset under the action of the first spring 1046 (at this time, the first drive plate 1081 and the counterweight 111 are at a certain distance). The movable bracket 107 is reset under the action of the second spring 1101, so that the first gear 1071 and the first rack 1061 re-mesh. And the hanging of the counterweight 111 pulls the first rotating shaft 1072 to rotate, so that the first gear 1071 on the first rotating shaft 1072 drives the first rack 1061 to move. The first rack 1061 drives the extrusion plate 106 to extrude multiple fertilizer packaging bags 105. In this way, each fertilizer packaging bag 105 will not be affected by gravity.

[0053] After a period of time, such as three months, when it is necessary to test the anti-caking rate of the fertilizer in the fertilizer packaging bag 105, the hydraulic telescopic rod 103 is retracted to make the extrusion frame 104 vertical. At this time, the downward movement of the counterweight 111 can extrude the first drive plate 1081, causing the first drive plate 1081 to drive the second drive plate 1082 to slide towards the first fixed plate 1041. The first inclined block 1083 on the second drive plate 1082 slides in cooperation with the second inclined block 1102 on the movable bracket 107, causing the movable bracket 107 to move away from the bottom plate 1041. Sliding in the direction of 44, the first gear 1071 on the first rotating shaft 1072 can disengage from the first rack 1061, so that the first rack 1061 no longer applies pressure to the extrusion plate 106; at the same time, the movement of the second drive plate 1082 drives the second rack 1062 to move away from the first fixed plate 1041 through the transmission gear 109, pulling the extrusion plate 106 away from the second fixed plate 1042, so that the extrusion plate 106 can move away from the fertilizer packaging bag 105. At this time, the fertilizer packaging bag 105 to be tested can be taken out from the extrusion frame 104 for testing.

[0054] Then, control the hydraulic telescopic rod 103 again to rotate the extrusion frame 104 to a horizontal position. After a period of time, rotate the extrusion frame 104 back to a vertical position to take samples again. This cycle can be repeated to test the fertilizer packaging bag 105 for multiple time periods.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A fertilizer anti-caking rate measuring device, characterized in that, The device includes a base, on which a pressing frame is provided. The pressing frame includes a first fixed plate and a second fixed plate that are fixedly connected. A pressing plate is slidably provided between the first fixed plate and the second fixed plate. The pressing plate, the first fixed plate, and the second fixed plate are all arranged in parallel. The distance between the pressing plate and the second fixed plate is adjustable. Multiple fertilizer packaging bags are placed between the pressing plate and the second fixed plate. The fertilizer packaging bags are parallel to the pressing plate. The base is also provided with a driving mechanism, which can drive the extrusion frame to rotate around the horizontal axis, so that the extrusion frame has a vertical state and a horizontal state. When the extrusion frame is in the horizontal state, the first fixing plate, the extrusion plate and the second fixing plate are all vertical and are distributed in sequence along the horizontal direction. When the extrusion frame is in the vertical state, the first fixing plate, the extrusion plate and the second fixing plate are all horizontal and are distributed in sequence along the vertical direction. A pressing mechanism is provided on the side of the first fixed plate away from the extrusion plate. The pressing mechanism can automatically drive the extrusion plate when the extrusion frame is in a horizontal state, so that the extrusion plate can press multiple fertilizer packaging bags, and automatically release the extrusion plate when the extrusion frame is in a vertical state. The extrusion frame also includes a base plate, which is perpendicular to and fixedly connected to the first fixed plate and the second fixed plate. When the extrusion frame is in a horizontal state, the base plate is supported on the base.

2. The fertilizer anti-caking rate measuring device according to claim 1, characterized in that, The clamping mechanism includes a first gear, a first rack, a counterweight, and a transmission mechanism; A first rotating shaft is coaxially fixed on the first gear, and a movable bracket is provided on the first fixed plate. The first rotating shaft is rotatably mounted on the movable bracket and is parallel to the first fixed plate. The first rack is arranged perpendicularly to the extrusion plate, one end of the first rack is fixedly connected to the extrusion plate, and the other end passes through the first fixed plate and corresponds to the first gear. The counterweight is provided with a connecting rope, which passes around the first rotating shaft and connects to the first fixed plate, and the connecting rope is in frictional engagement with the first rotating shaft; The transmission mechanism is located between the counterweight and the movable support. When the extrusion frame is in a horizontal state, the counterweight hangs down under its own weight and pulls the first rotating shaft through the connecting rope, so that the first gear can mesh with the first rack. At the same time, the rotation of the first gear drives the first rack to slide, and then the first rack drives the extrusion plate to extrude fertilizer packaging bags. When the extrusion frame is in a vertical state, the counterweight presses the transmission mechanism under its own weight, so that the transmission mechanism drives the movable support to move away from the first rack, thereby disengaging the first gear from the first rack.

3. The fertilizer anti-caking rate measuring device according to claim 2, characterized in that, The transmission mechanism includes a drive frame that is slidably mounted on a base plate. The drive frame includes a first drive plate and a second drive plate that are vertically and fixedly connected. The first drive plate is parallel to a first fixed plate, and the second drive plate is perpendicular to the first fixed plate. The second drive plate and the movable bracket are connected by a sliding engagement with an inclined plane. When the pressing frame is in a vertical state, the counterweight can press the first drive plate under its own weight, causing the first drive plate to slide in a direction perpendicular to the first fixed plate. This allows the second drive plate to push the movable bracket to slide away from the base plate on the first fixed plate, thereby driving the first gear away from the first rack.

4. The fertilizer anti-caking rate measuring device according to claim 3, characterized in that, The second drive plate is provided with a first inclined block, and the movable bracket is fixedly provided with a second guide rod. The second guide rod is arranged parallel to the first fixed plate and perpendicular to the base plate. The second guide rod is provided with a second inclined block, and the first inclined block and the second inclined block are slidably engaged by inclined surfaces.

5. The fertilizer anti-caking rate measuring device according to claim 4, characterized in that, Two first guide rods are also fixed on the side of the first fixed plate away from the extrusion plate. The first guide rods are parallel to the first rack. The first drive plate can slide along the first guide rods. A first spring is sleeved on the first guide rod. The first spring has a tendency to make the first drive plate move away from the first fixed plate. The second guide rod is provided with a second spring, which has a tendency to move the second guide rod toward the base plate.

6. The fertilizer anti-caking rate measuring device according to claim 5, characterized in that, The extrusion plate is also provided with a second rack, which is arranged parallel to the first rack. A transmission gear is rotatably provided on the first fixed plate. The second drive plate meshes with the transmission gear, and the second rack passes through the first fixed plate and meshes with the transmission gear. Thus, when the counterweight presses the first drive plate, the second drive plate drives the second rack to move through the transmission gear, causing the second rack to pull the extrusion plate away from the second fixed plate.

7. The fertilizer anti-caking rate measuring device according to claim 6, characterized in that, The transmission gear includes an intermediate gear and side gears located on both sides of the intermediate gear along its axial direction. The intermediate gear meshes with a second rack, and the side gears mesh with a second drive plate.

8. The fertilizer anti-caking rate measuring device according to claim 3, characterized in that, The second fixed plate and the extrusion plate are each provided with a sliding plate on their opposite sides. Multiple rotating rollers are rotatably mounted on the sliding plate, and the rotating rollers are evenly distributed in a direction perpendicular to the base plate.

9. The fertilizer anti-caking rate measuring device according to claim 8, characterized in that, A guide rod is provided between the first fixing plate and the second fixing plate. The guide rod is perpendicular to the extrusion plate, and the extrusion plate can slide along the guide rod.

10. The fertilizer anti-caking rate measuring device according to claim 1, characterized in that, The driving mechanism is a hydraulic telescopic rod, which is rotatably mounted on the base around a horizontal axis and is connected to the second fixed plate.

Images