Lateral feeding equipment for extension project

Abstract

The invention relates to the technical field of highway reconstruction and extension, in particular to extension project side feeding equipment which comprises a rack, a feeding device and a feeding device. The storage box is connected with the interior of the rack; the adjusting part is connected with the lower end of the rack; the cylinder is communicated with the right end of the storage box; the discharging barrel communicates with the lower end of the cylinder, the discharging barrel is of a rectangular structure, and the rear end face of the discharging barrel is concaved forwards to form a discharging opening; the auxiliary part is connected with the rear end of the discharging barrel, and the auxiliary part is located on the upper side of the discharging opening; the pushing piece is rotationally connected with the interior of the storage box, and the pushing piece extends into the cylinder; and the adjusting piece is slidably connected with the interior of the discharging barrel, the adjusting piece penetrates through the discharging barrel and is connected with the bottom end of the interior of the rack, and the adjusting piece is located on the lower side of the storage box and the upper side of the discharging port, by means of the design, side feeding operation is conducted on the extension position, the probability that the extension position is damaged and the like is effectively reduced, and the extension effect and quality are effectively guaranteed.

Description

Technical Field

[0001] The invention relates to side feeding equipment for an expansion project, belonging to the technical field of highway reconstruction and expansion. Background Art

[0002] In highway reconstruction and expansion projects, auxiliary materials such as crushed stone are often used as primary raw materials. During construction, these auxiliary materials are first laid along the edge of the existing highway and compacted to form the pavement base, thereby facilitating the reconstruction and expansion process. Pavement base construction typically follows a layered approach: first, the lower base is laid and compacted. Then, auxiliary materials are spread on top of the compacted lower base to form the upper base, which is then compacted.

[0003] Currently, double-layer paving operations in highway expansion areas generally utilize feeding equipment. However, when laying the upper base, the feeding equipment must travel over the pre-formed lower base. Due to the weight of the equipment and the load generated by its movement, the lower base structure can be easily damaged, significantly increasing the risk of quality problems in highway expansion areas, thus affecting the overall quality and effectiveness of the project. Summary of the Invention

[0004] In view of the problems in the prior art, the present invention provides a side feeding device for an expansion project.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A side feeding device for an expansion project, comprising:

[0007] The frame has a rectangular structure;

[0008] A storage box is connected to the inside of the frame, the cross section of the storage box is trapezoidal, with a width at the top and a narrowness at the bottom, and the storage box extends out of the upper side of the frame;

[0009] An adjusting member connected to the lower end of the frame;

[0010] The cylinder is connected to the right end of the storage box;

[0011] A discharge cylinder is arranged in communication with the lower end of the cylinder. The discharge cylinder is rectangular in structure and is located on the right side of the frame. The rear end of the discharge cylinder is concave forward to form a discharge port, and the discharge port extends to the inner wall and lower end of the discharge cylinder.

[0012] An auxiliary part is connected to the rear end of the discharge barrel and is located above the discharge port;

[0013] a pushing member, rotatably connected to the storage box, wherein the pushing member extends into the cylinder;

[0014] The adjusting part is slidably connected to the inside of the discharge barrel. The adjusting part passes through the discharge barrel and is connected to the bottom end of the inside of the frame. The adjusting part is located at the lower side of the storage box and the upper side of the discharge port.

[0015] Furthermore, the adjusting member includes a bottom plate, the bottom plate is located on the lower side of the frame, a first lifting device is installed in the middle of the bottom end of the frame, and the first lifting device is located on the lower side of the storage box, the movable part of the first lifting device passes through the frame and is connected to the bottom plate, and rolling members are installed at the four corners of the lower end of the bottom plate;

[0016] Guide rods are provided at the four corner positions of the upper end of the base plate, and the guide rods pass through the frame. The guide rods are slidably connected to the frame, and the guide rods are located at the lower side of the storage box. A connecting component is installed at the front end of the base plate, and the connecting component is slidably connected to the front end of the frame.

[0017] Furthermore, the connection assembly includes a mounting plate, which is arranged on the front end of the base plate, and the rear end of the mounting plate is slidably connected to the front end of the rack, and the front end of the mounting plate is installed with a connector.

[0018] Furthermore, the adjusting part includes a telescopic device, which is installed at the bottom end of the frame, and the telescopic device is located on the lower side of the storage box and on the right side of the first lifting device. A sealing plate is provided at the right end of the movable part of the telescopic device, and the sealing plate is slidably connected to the left end of the discharge barrel, and the sealing plate extends into the discharge barrel. The sealing plate is located on the upper side of the discharge port, and a baffle is installed at the right end of the sealing plate, and the lower end surface of the baffle coincides with the lower end surface of the discharge barrel.

[0019] Furthermore, the pushing member includes a screw rod, which is rotatably connected to the inside of the storage box and extends into the cylinder. An auxiliary gear is provided on the left side of the storage box. The screw rod passes through the storage box and is connected to the auxiliary gear. A driving device is installed at the bottom end of the frame, and the driving device is located on the lower side of the storage box and on the left side of the first lifting device. A transmission gear is provided on the output shaft of the driving device, and the transmission gear is located on the left side of the frame. The transmission gear and the auxiliary gear are connected by a synchronous belt.

[0020] Furthermore, the auxiliary part includes a second lifting device, the fixed part of the second lifting device is installed at the rear end of the discharge barrel, a movable plate is provided at the lower end of the movable part of the second lifting device, and the movable plate is slidably connected to the rear end of the discharge barrel, two telescopic cylinders are symmetrically installed at the rear end of the discharge barrel, and the two telescopic cylinders are located on the left and right sides of the second lifting device, the lower ends of the movable parts of the two telescopic cylinders are connected to the upper end of the movable plate, a sealing assembly is installed at the lower end of the movable plate, and the sealing assembly is located on the upper side of the discharge port, and the front end of the sealing assembly is slidably connected to the rear end of the discharge barrel.

[0021] Furthermore, the blocking assembly includes a plurality of plug plates, which are all slidably connected to the rear end of the discharge barrel, and are located at the lower side of the movable plate and the upper side of the discharge port. Two adjacent plug plates fit together, and telescopic rods are installed on the upper ends of the plurality of plug plates, and the other ends of the telescopic rods are connected to the lower end of the movable plate. An elastic member is arranged between the lower end of the movable plate and the upper end of the plug plate, and the elastic member is located on the outside of the telescopic rod and the rear side of the discharge barrel.

[0022] Furthermore, the rear end surface of the insert plate is recessed forward to form a rectangular through groove, and the rectangular through groove passes through the insert plate. A guide rod is slidably connected in the rectangular through groove, and the guide rod extends out of the rear side of the rectangular through groove. The guide rod is installed at the rear end of the discharge barrel. The transverse surface of the guide rod is T-shaped, and the vertical part of the guide rod is attached to the rear end of the insert plate.

[0023] Beneficial effects of the present invention:

[0024] By using the traveling vehicle and four moving wheels, the frame, base plate and other components are moved on the road to be expanded, and then the discharge barrel is moved along the expansion position. At the same time, the auxiliary material in the storage box is continuously transported into the cylinder through the motor, transmission gear, synchronous belt, auxiliary gear and screw rod. Then the auxiliary material is transported downward through the gap formed between the sealing plate and the right end of the baffle and the right wall inside the discharge barrel, and the auxiliary material falls onto the expansion position. With the assistance of the discharge port, the auxiliary material is laid on the expansion position, and the feeding operation is completed, realizing the side feeding operation of the expansion position, effectively reducing the probability of damage to the expansion position, and effectively ensuring the expansion effect and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0026] Figure 1 This is a structural diagram of a side feeding device for an expansion project according to the present invention;

[0027] Figure 2 This is a three-dimensional diagram of a side feeding device for an expansion project according to the present invention;

[0028] Figure 3 This is a cross-sectional view of a side feeding device for an expansion project according to the present invention;

[0029] Figure 4 This is an assembly diagram of a frame and a bottom plate in a side feeding device for an expansion project according to the present invention;

[0030] Figure 5 This is a three-dimensional diagram of a discharge barrel in a side feeding device for an expansion project according to the present invention;

[0031] Figure 6This is a three-dimensional diagram of a blocking plate in a side feeding device for an expansion project according to the present invention;

[0032] Figure 7 This is an assembly diagram of the third electric push rod and the insert plate in a side feeding device for an expansion project of the present invention;

[0033] Figure 8 This is a three-dimensional diagram of a side feeding device for an expansion project according to the present invention;

[0034] Figure 9 This is a three-dimensional diagram of a side feeding device for an expansion project according to the present invention;

[0035] Figure 10 This is a three-dimensional diagram of a side feeding device for an expansion project according to the present invention.

[0036] In the figure: 1, frame, 11, first electric push rod, 12, motor, 13, transmission gear, 2, storage box, 3, cylinder;

[0037] 4. Discharge barrel, 41. Discharge port, 42. Blocking plate, 421. Baffle, 43. Second electric push rod, 5. Bottom plate, 51. Mounting plate, 52. Connector, 53. Moving wheel;

[0038] 6. Third electric push rod, 61. Moving plate, 7. Inserting plate, 71. Elastic member, 72. Rectangular through slot, 73. Telescopic rod, 74. Guide rod, 8. Screw rod, 81. Auxiliary gear. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0040] Example 1: Figures 1-6 As shown, a side feeding device for an expansion project is provided, comprising: a frame 1 with a rectangular structure, a storage box 2 with a trapezoidal cross-section that is wide at the top and narrow at the bottom and extends out of the upper side of the frame 1 is installed in the frame 1, and the storage box 2 is used to store auxiliary materials, and a cylinder 3 is connected and arranged on the right end of the storage box 2, and a mounting carrier is provided for a discharge cylinder 4 through the cylinder 3, and then a discharge cylinder 4 with a rectangular structure and located on the right side of the frame 1 is connected and installed on the lower end of the cylinder 3, and is used to temporarily store auxiliary materials through the discharge cylinder 4, and a discharge port 41 extending to the inner wall and lower end of the discharge cylinder 4 is formed at the rear end surface of the discharge cylinder 4. The discharge port 41 is used to evenly lay the auxiliary materials;

[0041] The fixed part of the first lifting device located on the lower side of the storage box 2 is installed in the middle of the bottom end of the frame 1, and the movable part of the first lifting device passes through the frame 1 and is connected to the bottom plate 5 located on the lower side of the frame 1. The frame 1 is driven to move up and down by the first lifting device. The first lifting device can adopt a first electric push rod 11, and four guide rods passing through the frame 1 and slidably connected to the frame 1 are respectively set at the four corner positions of the upper end of the bottom plate 5, and the guide rods are located on the lower side of the storage box 2. The four guide rods work together to guide the movement of the frame 1;

[0042] Four rolling members are respectively installed at the four corner positions of the lower end of the base plate 5. The four rolling members are used together to enable the base plate 5 to move. The rolling members can adopt moving wheels 53, and the mounting plate 51 whose rear end is slidably connected to the front end of the frame 1 is set on the front end of the base plate 5. Through the mounting plate 51, a mounting carrier is provided for the connector 52, and then the connector 52 is installed on the front end of the mounting plate 51. Through the connector 52, traction is applied to the base plate 5, the frame 1 and other components.

[0043] The screw rod 8 extending into the cylinder 3 is rotated and connected to the inside of the storage box 2. The auxiliary material in the storage box 2 is transported into the cylinder 3 through the screw rod 8, and the screw rod 8 passes through the storage box 2 and is connected to the auxiliary gear 81 located on the left side of the storage box 2. The screw rod 8 is rotated through the auxiliary gear 81, and then the fixed part of the driving device located on the lower side of the storage box 2 and the left side of the first lifting device is installed at the bottom end of the inside of the frame 1. The driving device drives the transmission gear 13 to rotate. The driving device can adopt a motor 12 with a reducer, and the transmission gear 13 located on the left side of the frame 1 is connected to the output shaft of the driving device, and the transmission gear 13 and the auxiliary gear 81 are connected through a synchronous belt. The transmission gear 13 cooperates with the synchronous belt to rotate the auxiliary gear 81;

[0044] The fixed part of the telescopic device located on the lower side of the storage box 2 and on the right side of the first lifting device is installed on the bottom end of the inside of the frame 1. The telescopic device is used to drive the sealing plate 42 to move left and right. The telescopic device can use a second electric push rod 43, and the sealing plate 42 extending into the discharge barrel 4 and located on the upper side of the discharge port 41 is slidably connected to the left end of the discharge barrel 4, and the right end of the movable part of the telescopic device is connected to the left end of the sealing plate 42. The outlet area of the discharge barrel 4 is adjusted through the sealing plate 42, and then the baffle 421 whose lower end face coincides with the lower end face of the discharge barrel 4 is installed on the right end of the sealing plate 42. The baffle 421 is used to prevent auxiliary materials from entering the lower side of the sealing plate 42.

[0045] When in use, first connect the connector 52 to the moving vehicle, then use the moving vehicle and the four moving wheels 53 to move the frame 1, the base plate 5 and other components to the road to be expanded, and make the discharge drum 4 above the side of the road to be expanded, then put the auxiliary material into the storage box 2, and then start the first electric push rod 11 to drive the frame 1 to move downward, and then make the storage box 2, the cylinder 3 and the discharge drum 4 move downward, so that the distance between the discharge drum 4 and the road surface to be expanded reaches a predetermined distance, so as to adjust the paving thickness of the auxiliary material;

[0046] Then the motor 12 is started to drive the transmission gear 13 to rotate, and with the assistance of the synchronous belt, the auxiliary gear 81 is rotated, and then the screw rod 8 is rotated, so that the auxiliary material in the storage box 2 is transported to the cylinder 3, and the cylinder 3 is filled with auxiliary material, and then the second electric push rod 43 is started to drive the sealing plate 42 and the baffle 421 to move to the left, so that the baffle 421 moves to the side of the road, and then the auxiliary material in the cylinder 3 enters the discharge barrel 4, and then the auxiliary material is transported downward through the gap formed between the sealing plate 42 and the right end of the baffle 421 and the right wall inside the discharge barrel 4, and the auxiliary material falls to the expansion position, so that the outlet of the discharge barrel 4 is adjusted by using the sealing plate 42 and the baffle 421, so that the outlet length of the discharge barrel 4 is the same as the length of the position to be expanded, effectively reducing the probability of waste of paving auxiliary materials, improving the scope of use, and effectively ensuring the expansion effect and quality;

[0047] Then, the traveling vehicle and the four moving wheels 53 are used to move the frame 1, the base plate 5 and other components on the road to be expanded, and then the discharge barrel 4 is moved along the expansion position. At the same time, the motor 12, the transmission gear 13, the synchronous belt, the auxiliary gear 81 and the screw rod 8 are used to continuously transport the auxiliary material in the storage box 2 into the cylinder 3, and then the auxiliary material in the discharge barrel 4 is laid from the discharge port 41 to the expansion position, thereby completing the feeding operation and realizing the side feeding operation of the expansion position, effectively reducing the probability of damage to the expansion position, and effectively ensuring the expansion effect and quality.

[0048] Example 2: Figure 2 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10As shown, the fixed part of the second lifting device is installed at the rear end of the discharge barrel 4, and the movable plate 61 is driven to move up and down by the second lifting device. The second lifting device can adopt a third electric push rod 6, and the movable plate 61 slidably connected to the rear end of the discharge barrel 4 is set on the lower end of the movable part of the second lifting device. The movable plate 61 provides a mounting carrier for components such as the elastic member 71, and then the fixed parts of the two telescopic cylinders located on the left and right sides of the second lifting device are symmetrically installed on the rear end of the discharge barrel 4, and the lower ends of the movable parts of the two telescopic cylinders are connected to the upper end of the movable plate 61. The two telescopic cylinders are used in conjunction to guide the movement of the movable plate 61.

[0049] The plurality of plug plates 7 located on the lower side of the movable plate 61 and the upper side of the discharge port 41 are all slidably connected to the rear end of the discharge cylinder 4, and two adjacent plug plates 7 are fitted together. The plurality of plug plates 7 are used in conjunction with each other to block the discharge port 41, and the plurality of telescopic rods 73 connected to the lower end of the movable plate 61 at the other end are respectively installed on the upper ends of the plurality of plug plates 7. The plug plates 7 are connected to the movable plate 61 through the telescopic rods 73, and then the elastic member 71 located on the outer side of the telescopic rod 73 and the rear side of the discharge cylinder 4 is arranged between the lower end of the movable plate 61 and the upper end of the plug plates 7. The elastic member 71 applies downward pressure to the plug plates 7, and the elastic member 71 can be a spring.

[0050] The rear end surface of the insert plate 7 is recessed forward to form a rectangular through slot 72 that passes through the insert plate 7. The rectangular through slot 72 provides movement space for the guide rod 74. The guide rod 74 extending from the rear side of the rectangular through slot 72 and installed at the rear end of the discharge barrel 4 is slidably connected in the rectangular through slot 72, and the vertical portion of the guide rod 74 with a T-shaped transverse surface is attached to the rear end of the insert plate 7. The movement of the blocking plate 42 is restricted and guided by the guide rod 74.

[0051] During use, the auxiliary material is first put into the storage box 2, and then the first electric push rod 11 is used to move the frame 1, storage box 2, cylinder 3 and discharge cylinder 4 downward, so that the distance between the discharge cylinder 4 and the road surface to be expanded reaches a predetermined distance, and then the motor 12, transmission gear 13, synchronous belt, auxiliary gear 81 and screw rod 8 are used to transport the auxiliary material in the storage box 2 into the cylinder 3, and fill the cylinder 3 with the auxiliary material, and then the second electric push rod 43 is used to drive the blocking plate 42 and the baffle 421 to move to the left, and then the baffle 421 is moved to the side of the road, and then the auxiliary material in the cylinder 3 enters the discharge cylinder 4, and then the auxiliary material is transported downward through the gap formed between the right end of the blocking plate 42 and the baffle 421 and the right wall inside the discharge cylinder 4, and the auxiliary material falls to the expansion position;

[0052] Then, the vehicle and four moving wheels 53 are used to move the frame 1, base plate 5 and other components on the road to be expanded, so that the discharge barrel 4 moves along the expansion position, and the auxiliary material in the discharge barrel 4 is laid from the discharge port 41 to the expansion position, thereby completing the side feeding operation.

[0053] During the side feeding process, after the discharge drum 4 moves a predetermined distance, the third electric push rod 6 is started, thereby driving the movable plate 61 to move downward, thereby causing the multiple elastic members 71 and the multiple plug-in plates 7 to move downward. When the multiple plug-in plates 7 come into contact with the paved paving material layer and the road surface to be expanded, they will block the plug-in plates 7, thereby compressing the elastic members 71, causing the elastic members 71 to generate elastic force. The paving material of the paving material layer is soft, and under the elastic force of the corresponding elastic member 71, the corresponding plug-in plates 7 are inserted into the paving material layer;

[0054] Then, after a predetermined period of time, the third electric push rod 6 is used to move the movable plate 61 upward, thereby causing the elastic member 71 and the insert plate 7 to return to their original positions, and thereby causing the auxiliary material in the discharge barrel 4 to continue to be discharged through the discharge port 41, and the auxiliary material is laid again, so as to form a V-shaped gap in the paving material layer at the expansion position, thereby providing auxiliary material flow space for subsequent compaction operations, effectively reducing the probability of auxiliary material flowing outwards at the expansion position during compaction, and the design of multiple insert plates 7 effectively avoids the formation of blocking gaps on the road surface to be expanded, thereby effectively ensuring the expansion effect and quality.

[0055] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A side feeding equipment for expansion project, characterized in that: include: The frame (1) has a rectangular structure; A storage box (2) is connected to the inside of the frame (1), the cross section of the storage box (2) is trapezoidal in shape, being wider at the top and narrower at the bottom, and the storage box (2) extends out of the upper side of the frame (1); An adjusting member connected to the lower end of the frame (1); The cylinder (3) is connected to the right end of the storage box (2); A discharge barrel (4) is arranged in communication with the lower end of the cylinder (3), the discharge barrel (4) is of rectangular structure, and the discharge barrel (4) is located on the right side of the frame (1), the rear end of the discharge barrel (4) is recessed forward to form a discharge port (41), and the discharge port (41) extends to the inner wall and the lower end of the discharge barrel (4); An auxiliary part connected to the rear end of the discharge cylinder (4), the auxiliary part being located above the discharge port (41); A pushing member is rotatably connected to the storage box (2), and the pushing member extends into the cylinder (3); The adjusting member is slidably connected to the inside of the discharge barrel (4), passes through the discharge barrel (4) and is connected to the bottom end of the inside of the frame (1), and is located on the lower side of the storage box (2) and the upper side of the discharge port (41).

2. The side feeding equipment for expansion projects according to claim 1, characterized in that: The adjusting member comprises a bottom plate (5), the bottom plate (5) being located on the lower side of the frame (1), a first lifting device being installed in the middle of the bottom end of the frame (1), and the first lifting device being located on the lower side of the storage box (2), a movable portion of the first lifting device passing through the frame (1) and connected to the bottom plate (5), and rolling members being installed at the four corner positions of the lower end of the bottom plate (5); Guide rods are provided at the four corner positions of the upper end of the base plate (5), and the guide rods pass through the frame (1). The guide rods are slidably connected to the frame (1), and the guide rods are located on the lower side of the storage box (2). A connecting component is installed at the front end of the base plate (5), and the connecting component is slidably connected to the front end of the frame (1).

3. The side feeding equipment for expansion project according to claim 2, characterized in that: The connection assembly comprises a mounting plate (51), the mounting plate (51) being arranged on the front end of the base plate (5), the rear end of the mounting plate (51) being slidably connected to the front end of the frame (1), and the front end of the mounting plate (51) being provided with a connector (52).

4. The side feeding equipment for expansion projects according to claim 2, characterized in that: The adjusting member comprises a telescopic device, which is installed at the bottom end of the interior of the frame (1) and is located at the lower side of the storage box (2) and the right side of the first lifting device. A blocking plate (42) is provided at the right end of the movable part of the telescopic device. The blocking plate (42) is slidably connected to the left end of the discharge barrel (4) and extends into the discharge barrel (4). The blocking plate (42) is located on the upper side of the discharge port (41). A baffle (421) is installed at the right end of the blocking plate (42), and the lower end surface of the baffle (421) coincides with the lower end surface of the discharge barrel (4).

5. The side feeding equipment for expansion projects according to claim 2, characterized in that: The pushing member includes a screw rod (8), which is rotatably connected to the inside of the storage box (2) and extends into the cylinder (3). An auxiliary gear (81) is provided on the left side of the storage box (2). The screw rod (8) passes through the storage box (2) and is connected to the auxiliary gear (81). A driving device is installed at the bottom end of the inside of the frame (1), and the driving device is located on the lower side of the storage box (2) and on the left side of the first lifting device. A transmission gear (13) is provided on the output shaft of the driving device, and the transmission gear (13) is located on the left side of the frame (1). The transmission gear (13) and the auxiliary gear (81) are connected through a synchronous belt.

6. The side feeding equipment for expansion projects according to claim 1, characterized in that: The auxiliary component includes a second lifting device, wherein the fixed portion of the second lifting device is installed at the rear end of the discharge barrel (4), a movable plate (61) is provided at the lower end of the movable portion of the second lifting device, and the movable plate (61) is slidably connected to the rear end of the discharge barrel (4), two telescopic cylinders are symmetrically installed at the rear end of the discharge barrel (4), and the two telescopic cylinders are located on the left and right sides of the second lifting device, the lower ends of the movable portions of the two telescopic cylinders are connected to the upper end of the movable plate (61), a blocking component is installed at the lower end of the movable plate (61), and the blocking component is located on the upper side of the discharge port (41), and the front end of the blocking component is slidably connected to the rear end of the discharge barrel (4).

7. The side feeding equipment for expansion projects according to claim 6, characterized in that: The blocking assembly comprises a plurality of plug plates (7), and the plurality of plug plates (7) are all slidably connected to the rear end of the discharge barrel (4), and the plug plates (7) are located on the lower side of the movable plate (61) and the upper side of the discharge port (41), and two adjacent plug plates (7) are fitted with each other, and a telescopic rod (73) is installed on the upper ends of the plurality of plug plates (7), and the other end of the telescopic rod (73) is connected to the lower end of the movable plate (61), and an elastic member (71) is provided between the lower end of the movable plate (61) and the upper end of the plug plate (7), and the elastic member (71) is located on the outside of the telescopic rod (73) and the rear side of the discharge barrel (4).

8. The side feeding equipment for expansion projects according to claim 7, characterized in that: The rear end of the inserting plate (7) is recessed forward to form a rectangular through groove (72), and the rectangular through groove (72) passes through the inserting plate (7). A guide rod (74) is slidably connected in the rectangular through groove (72), and the guide rod (74) extends out of the rear side of the rectangular through groove (72). The guide rod (74) is installed at the rear end of the discharge barrel (4). The transverse surface of the guide rod (74) is T-shaped, and the vertical portion of the guide rod (74) is attached to the rear end of the inserting plate (7).

Images