Ginned cotton packing machine pre-pressing cotton pressing device and packing machine

Abstract

The invention discloses a lint cotton packing machine pre-pressing cotton pressing device and a packing machine, the lint cotton packing machine pre-pressing cotton pressing device comprises a pre-pressing beam, the pre-pressing beam comprises two frames, and vertical guide rails are arranged on the opposite sides of the two frames; the guide part comprises two vertical arms and cotton baffle plates, and the two sides of the cotton baffle plates are correspondingly connected with the vertical arms on the sides; the two vertical arms are provided with sliding rails matched with the guide rails on the corresponding sides to form a guide rail pair. The length of the sliding rail is larger than that of the guide rail, and when the guide part is located at the upper dead center, part of the sliding rail is exposed out of the upper end of the guide rail to form a reserved section; the pre-pressing head is fixedly mounted at the lower end of the vertical arm; and a push rod, extending downwards, of the pre-pressing oil cylinder is fixedly connected with the pre-pressing pressure head. The pre-pressing cotton pressing device of the lint cotton packaging machine is relatively good in reliability.

Description

Technical Field

[0001] The present invention relates to a pre-pressing cotton compressing device used in a lint baling press, and also relates to a baling press equipped with the pre-pressing cotton compressing device. Background Art

[0002] The operation of a lint hydraulic baling press is divided into a pre-pressing process and a main-pressing process. For the same bale of lint, the two processes are sequential, and for adjacent bales of lint, the two processes are basically carried out simultaneously. Figure 1 Shown is the main structure of a known lint baling press. As can be seen in the figure, at the upper end of the pre-pressing cotton box on the pre-pressing side 3, a pre-pressing cotton compressing device 2 of the lint baling press is adapted. The specific structure of the known pre-pressing cotton compressing device 2 of the lint baling press can be seen in Figure 2 , and the lint is pre-pressed multiple times by the pre-pressing head 4 to a position below the holding device of the pre-pressing cotton box. In view of the fact that the lint in the pre-pressing cotton box will generate a very large reaction force during baling, it is not easy to ensure the lateral stability of the pre-pressing oil cylinder 7 that provides the pre-pressure. Therefore, an auxiliary guiding member needs to be provided for the pre-pressing head 4.

[0003] Specifically, as Figure 2 shown, the cylinder body of the pre-pressing oil cylinder 7 is fixed to the body on the pre-pressing side or Figure 2 the inner pre-pressing beam 5 shown in Figure 2 , the baffle plate 9 shown in

[0004] is generally fixedly connected to the pre-pressing head 4 and is located on the front side of the pre-pressing head 4. At the initial stage of baling, the baffle plate 9 is used to guide the loose cotton to enter the cotton box evenly, avoiding local accumulation or voids. A guiding rod 6 is provided on each of the left and right sides of the pre-pressing head 4 corresponding to the pre-pressing oil cylinder 7. The lower end of the guiding rod 6 is fixed to the pre-pressing head 4, and the upper end is fixedly connected to the upper edge of the baffle plate 9 through the top angle steel 8, that is, a vertically moving assembly is formed among the guiding rod 6, the baffle plate 9, and the pre-pressing head 4, and the push rod of the pre-pressing oil cylinder 7 is centrally connected to the pre-pressing head 4. Figure 4 As described above, when pre-pressing, the reaction force of the lint on the pre-pressing head 4 will be very large. Therefore, it is necessary to provide guidance for the pre-pressing head 4 and ensure the reliability of the guidance. In view of this, as

[0005] Limited by the height of the preloading inner beam 5, although the cooperative guidance of the upper guide wheel set 13 and the lower guide wheel 14 with a certain span can provide guidance with a certain axial length on the guide rod 6, this length is still relatively short. Moreover, the contact area between the guide wheel 14 and the guide rod 6 is very small, and the guidance reliability is relatively low, resulting in relatively large vibrations during the guiding process.

[0006] Furthermore, since the preloading stroke is usually above 1200 mm, while the support sections provided by the two groups of guide wheels are relatively small. When the preloading moves downward or upward to the preloading limit position, the two groups of guide wheels will only be located at one section of the guide rod 6, making it extremely easy for the preloading oil cylinder to be skewed. And with the development of technology, the packing quantity per unit time of the packing machine is increasing, and the preloading speed and frequency are correspondingly increasing, and the vibration impact during preloading is also increasing. As a result, it is extremely easy to cause problems such as bolt loosening, damage to mechanical or hydraulic components, and may endanger the safety of the equipment and personnel.

[0007] In view of the improvement of the packing rate, the market's demand for a higher-speed packing machine is becoming more and more urgent. The high-speed and stable preloading process of stepping on cotton is the key to a high-speed packing machine, but the current preloading stroke of guiding the guide rod through guide wheels is increasingly difficult to meet the technical requirements of packing.

[0008] Existing references of packing machines: Chinese Patent Document CN220501232U.

[0009] Chinese Patent Document CN220974833U. Summary of the Invention

[0010] The purpose of the present invention is to provide a preloading and cotton pressing device for a lint packing machine with relatively good reliability, and the present invention also provides a packing machine with the preloading and cotton pressing device for the lint packing machine.

[0011] According to the first aspect of the embodiments of the present invention, there is provided a preloading and cotton pressing device for a lint packing machine, which includes: A preloading beam, including two side frames that are parallel and vertically arranged with each other, and an upper cross frame for connecting the two side frames at the upper end; wherein vertical guide rails are provided on one side of the two side frames that face each other; A guiding part, including two vertical arms that are parallel and vertically arranged with each other, and baffle plates connected to the corresponding vertical arms on both sides; wherein, sliding rails that cooperate with the corresponding side guide rails to form a guide rail pair are provided on the two vertical arms; the length of the sliding rails is greater than the length of the guide rails, and when the guiding part is at the upper dead center, a part of the sliding rails protrudes from the upper end of the guide rails to form a reserved section; A preloading and pressing head, fixedly installed at the lower end of the vertical arm; and Preloading oil cylinder, the cylinder body of which is fixedly installed on the preloading beam or the frame of the baling machine, and the push rod extending downward from the preloading oil cylinder is fixedly connected to the preloading pressure head.

[0012] Optionally, the length of the reserved section is one-eighth to one-fifth of the length of the guide rail.

[0013] Optionally, the upper cross frame is a rectangular frame, and the rectangular opening corresponding to the rectangular frame is at least used for the avoidance of the upward movement of the reserved section.

[0014] Optionally, a middle cross frame for interconnecting the two side frames is provided in the middle of the preloading beam; Corresponding to the middle cross frame, there are a front middle cross frame and a rear middle cross frame to be correspondingly connected to the front side or the rear side of the side frame.

[0015] Optionally, a foot seat for assembling the preloading beam on the frame of the baling machine is provided at the lower end of the preloading beam to form a first installation position; Another installation cross beam is provided, and the installation cross beam has an installation seat hole penetrating through the installation cross beam in the up and down direction; the installation cross beam is correspondingly fixed on the frame of the baling machine; The lower part of the preloading beam is sleeved in the installation seat hole, and the corresponding side frame is fixedly connected to the installation cross beam to form a second installation position, and the second installation position is higher than the first installation position.

[0016] Optionally, the guide rail pair is a lubricant-free guide rail pair.

[0017] Optionally, middle fixing holes are arranged in the middle and upper parts of the cotton blocking plate; Correspondingly, a plurality of cross arms are installed on the back side of the cotton blocking plate through the middle fixing holes; Both ends of the cross arm are correspondingly fixed to the vertical arm.

[0018] Optionally, a plurality of vertical additional reinforcing ribs are provided at the lower part of the cotton blocking plate including a straight groove for avoiding the hooking device, and the length of the additional reinforcing rib is greater than the length of the straight groove.

[0019] Optionally, the left and right side edges of the cotton blocking plate have flanges; The back side of the lower end of the cotton blocking plate is fixedly connected to the front side of the preloading pressure head; A plurality of reinforcing plates are further provided between the two vertical arms.

[0020] According to the second aspect of the embodiments of the present invention, a baling machine is provided, including the preloading and cotton pressing device of the lint baling machine according to the first aspect of the embodiments of the present invention.

[0021] In contrast, although the known pre-pressing cotton pressing device of a lint baler sets a set of guide wheels on each of the upper and lower sides of the pre-pressing inner beam, the support and guiding performance is relatively poor, and there is a problem that the overall stiffness of the guide rod is relatively insufficient when the pre-pressing ram is at the lower dead point, thus causing problems of vibration and relatively low speed. Compared with the guide rod, for the pre-pressing cotton pressing device of the lint baler according to the embodiment of the present invention, the pre-pressing beam with a guide rail integrally forms a gantry, and the overall stiffness is easy to ensure. And the guiding part is also a frame sheet metal structure as a whole (the cotton blocking plate included can be a sheet metal part or a steel plate), and the overall structure of the guiding part itself also has relatively good stiffness. And based on the integrity of the frame sheet metal structure, for the slide rails located on both sides of the guiding part, under the condition that the two provided slide rails have a given span, due to the integrity of the guiding part, the straightness of the guide rail pair formed by the cooperation of the slide rails and the guide rail is better maintained. At the same time, it should be known that the guide rail pair is a precision moving pair. In addition, the length of the slide rail is longer than that of the guide rail. When the pre-pressing ram is at the lower dead point with a relatively small mating length, by virtue of the high pair characteristics of the guide rail pair, the straightness of the guide rail pair can still be maintained well. Therefore, it is ensured as a whole that the pre-pressing cotton pressing device of the lint baler has higher reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 FIG. 6 is a schematic structural diagram of the main body of a known lint baler.

[0023] Figure 2 FIG. 10 is a schematic structural diagram of a known pre-pressing cotton pressing device of a lint baler.

[0024] Figure 3 FIG. 14 is a schematic structural diagram of a known cotton blocking plate.

[0025] Figure 4 FIG. 18 is a schematic structural diagram of a known pre-pressing inner beam provided with a guide wheel set.

[0026] Figure 5 FIG. 22 is a schematic structural diagram of the main body of a lint baler in an embodiment.

[0027] Figure 6 FIG. 26 is a schematic structural diagram of a pre-pressing cotton pressing device of a lint baler in an embodiment.

[0028] Figure 7 FIG. 30 is a schematic structural diagram of a pre-pressing cotton pressing device of a lint baler equipped with an installation cross beam in an embodiment.

[0029] Figure 8 FIG. 34 is a schematic structural diagram of a pre-pressing beam in an embodiment.

[0030] Figure 9 FIG. 38 is a schematic structural diagram of a guiding part in an embodiment.

[0031] Figure 10Schematic diagram of the cotton baffle structure in an embodiment.

[0032] Figure 11 Schematic diagram of the assembly structure of the cotton baffle and the cross arm in an embodiment.

[0033] In the figure: 1. Main pressing side, 2. Pre-pressing cotton device of the cotton bale press, 3. Pre-pressing side, 4. Pre-pressing head, 5. Inner pre-pressing beam, 6. Guide rod, 7. Pre-pressing oil cylinder, 8. Top angle steel, 9. Cotton baffle, 10. Lower fixing hole, 11. Reinforcing rib, 12. Upper fixing hole, 13. Lower guide wheel set, 14. Upper guide wheel set, 15. Through hole, 16. Guide part, 17. Pre-pressing beam, 18. Installation cross beam, 19. Reinforcing fixing frame, 20. Foot seat, 21. Frame, 22. Middle cross frame, 23. Guide rail, 24. Upper cross frame, 25. Reinforcing fixing plate, 26. Vertical arm, 27. Reinforcing plate, 28. Cross arm, 29. Slide rail, 30. Installation plate, 31. Short reinforcing rib, 32. Flange, 33. Middle fixing hole, 34. Long slot. Detailed implementation manners

[0034] As Figure 5 shown, the main pressing side 1 and the pre-pressing side 3 in the figure are arranged in parallel, and the parallel direction is the left-right direction, and the left-right direction is also called the transverse direction, the width direction, etc.

[0035] After the left-right direction is determined, the front-back direction is determined. The front-back direction is also called the longitudinal direction, and the front and back also correspond to the head and tail, the front and back, etc. For example, for the cotton baffle 9, the side for guiding the lint is its front surface, or the front surface, and the side opposite to the front surface is the back surface.

[0036] At the same time, both the pre-pressing and the main pressing for bailing are carried out by stepping on the cotton from top to bottom, that is, the up-down direction is determined, and the up-down direction is also called the height direction.

[0037] In view of Figures 1 - 4 the known pre-pressing cotton device 2 of a cotton bale press shown is relatively clear, it will not be elaborated herein again except as required to be separately described below. The pre-pressing cotton device 2 of the cotton bale press based on the embodiment of the present invention is mainly aimed at Figures 1 - 4 improving the known pre-pressing cotton device 2 of a cotton bale press shown.

[0038] For Figures 1 - 4 the known pre-pressing cotton device 2 of a cotton bale press shown, in addition to the problems mentioned in the background art part, it should be known that there will be relatively large noise in the rolling friction pair formed between the guide wheel and the guide rod 6 during the working state.

[0039] In addition, the following technical problems are also involved as the technical problems corresponding to other objects of the present invention: Figure 3The figure shows a known cotton baffle 9, which has only an upper fixing hole 12 at the upper end and a lower fixing hole 10 at the lower end. The known cotton baffle 9 is only fixed at the upper and lower ends on the pre-compression cotton pressing device 2 of the lint baler. It should be known that the role of the cotton baffle 9 in the baling stage is to control the flow of cotton during the compression process. At this time, the cotton baffle 9 acts as a physical barrier to limit the flow of cotton to non-target areas, such as rebound or side overflow, and thus has relatively high requirements for its own rigidity. However, the existing cotton baffle 9 is only fixed at the upper and lower places, so it is easy to cause the cotton baffle 9 to deform during the cotton compression stage.

[0040] In view of this, if Figure 3 The known cotton baffle plate 9 shown in the figure is often provided with reinforcing ribs 11 on the back of the cotton baffle plate 9. The reinforcing ribs 11 extend in the up-down direction of the cotton baffle plate 9 and are roughly equal to the length of the cotton baffle plate 9. Although the stiffness of the cotton baffle plate 9 can be improved to a certain extent by means of the reinforcing ribs 11, it still cannot meet the expected requirements. This is the second technical problem.

[0041] The following firstly considers the technical problem of the first aspect, namely a series of problems caused by the relatively low guiding reliability of the pre-pressing and pressing device 2 of the known lint baler relying on the guide rod 6 .

[0042] In the embodiment of the present invention, the guidance of the pre-pressing cotton pressing device 2 of the lint baler provided is guided by a guide rail pair, and the guide rail component of the guide rail pair usually has a mounting base with relatively large rigidity, and the guide rod 6 is usually mostly suspended in the air, with only the two ends fixed. Therefore, the reliability of the pre-pressing cotton pressing device 2 of the lint baler based on the embodiment of the present invention is relatively good.

[0043] Accordingly, the installation of the guide rail component is mainly carried out by means of two frames, one of which is Figures 6 - 8 The pre-stressed beam 17 illustrated in the figure has a main body which is a gantry, and the inner sides of the two frame frames 21 of the gantry, that is, the sides of the frame frames 21 opposite to each other, are used as a mounting base for the guide rail 23 .

[0044] The prestressed beam 17 is used as the mounting base of the guide rail 23, and the support for the guide rail 23 can be a full-length support, rather than only having support at both ends like the guide rod 6, so the guide rail 23 is not prone to large elastic deformation in the working state.

[0045] In addition, the joint surface area of ​​the guide rail pair is large, which is suitable for heavy-load applications. While the reliability is relatively high, the working noise is relatively small.

[0046] Correspondingly, the two side frames 21 of the preloading beam 17 are vertical columns, which are arranged in parallel between the two side frames 21. The side facing each other is the inner side of the side frame 21. The guide rail 23 is fixedly installed on the inner side of the side frame 21. There is at least one guide rail member on each side frame 21, and it can also be two or three. When there are multiple guide rail members, the multiple guide rail members are parallel to each other.

[0047] The preloading beam 17 further includes an upper cross frame 24 for connecting the two side frames 21 at the upper end, so that the preloading beam 17 forms a gantry frame as a whole.

[0048] In addition, the lower ends of the preloading beams 17 are fixedly connected, such as installed on the body of the baler. That is, in the installed state, the preloading beam 17 adapted to the installed part, such as the body part, can form a more stable rectangular frame.

[0049] In addition, in Figure 8 the illustrated structure, a middle cross frame 22 for interconnecting the two side frames 21 in the middle is also provided on the premise of not affecting the operation of the guiding part 16.

[0050] As can be seen from Figure 8 , the guide rail 23 is located inside the side frame 21, and as can be seen from Figure 6 and Figure 7 , in the front-back direction, the guiding part 16 is located inside the preloading beam 17, and the front and back surfaces of the preloading beam 17 can be used as Figure 8 the installation surface of the middle cross frame 22 in

[0051] As can be further seen from Figure 8 , a plurality of groups of installation holes for installing the middle cross frame 22 are provided on the front and back surfaces of the side frame 21 of the preloading beam 17, and a given number of middle cross frames 22 can be installed according to the stiffness requirements of the preloading beam 17.

[0052] Obviously, the guide rail 23 is a vertically arranged guide rail, and the guiding of the guiding part 16 also shows vertical guiding. In the embodiment of the present invention, the guiding part 16 is also configured as a frame structure and is supported on both sides. Although in some stages during the downward movement of the guiding part 16, some segments of the guiding part 16 are in a suspended state, because it is a frame structure as a whole, rather than a single guiding rod 6 lacking mutual support, the guiding part 16 can still maintain relatively good dynamic stiffness. Obviously, the static stiffness of the guiding part 16 itself is relatively easier to ensure.

[0053] In view of the fact that the guiding part 16 is configured as an assembly, the part used for cooperating with the guide rails 23 on both sides is called a vertical arm 26, and the part installed on the vertical arm 26 for directly cooperating with the guide rail 23 to form a guide rail pair is called a slide rail 29. Obviously, based on the vertical arrangement state of the guide rail 23, the vertical arm 26 and the slide rail 29 installed on the vertical arm 26 are also vertically arranged.

[0054] The two vertical arms 26 are arranged in parallel and connected to each other, thus forming an assembly. The connection between the two vertical arms 26 only needs to avoid the preloading oil cylinder 7, and the preloading oil cylinder 7 is roughly in the middle position of the horizontal section of the guiding part 16. Therefore, a connecting body for connecting the two vertical arms 26 can be constructed at positions where the preloading oil cylinder 7 is avoided both front and back.

[0055] In Figure 9 In the illustrated structure, the front sides of the two vertical arms 26 are connected to the cotton blocking plate 9. In addition to blocking cotton, the cotton blocking plate 9 also serves as a connecting component for connecting the two vertical arms 26.

[0056] Furthermore, in Figure 9 and Figure 11 it can be seen that several cross arms 28 are also provided between the two vertical arms 26. The cross arms 28 are fixedly connected to both the two vertical arms 26 and the cotton blocking plate 9 at the same time, so that the guiding part is constructed into an assembly with relatively reliable structure, and the overall stiffness is very easy to ensure.

[0057] In particular, since the cotton blocking plate 9 has multiple supports provided by the cross arms 28 in addition to the supports at both ends, the stiffness of the cotton blocking plate 9 is easy to ensure.

[0058] Further, the length of the slide rail 29 is greater than the length of the guide rail 23. Under this condition, when the guiding part 16 provided with the slide rail 29 runs to its lower dead point, there can still be a relatively long mating section with the guide rail 23. Correspondingly, when the guiding part 16 runs to the upper dead point, a part of the slide rail 29 exposes from the upper end of the guide rail 23. For the convenience of description, the exposed part is called the reserved section.

[0059] The length of the reserved section determines the minimum length of the mating section, and the minimum length of the mating section determines the stability of the guiding part 16 when it runs to the lower dead point. Therefore, based on the relatively short guide rail 23, the length of the reserved section should not be less than one-eighth of the length of the guide rail 23, but the reserved section should not be too long either, and generally should not be greater than one-fifth of the length of the guide rail 23.

[0060] Refer to Figure 6 , Figure 6 In the state shown, the preloading ram 4 is at the upper dead point, and at this time, a part of the guiding part 16 exposes from the upper end of the preloading beam 17. And in Figure 7In this case, the pre-pressing punch 4 moves downward a certain distance under the push of the pre-pressing oil cylinder 7. At this time, part of the slide rail 29 extends out from the lower end of the guide rail 23 and disengages from the cooperation with the guide rail 23. As the slide rail 29 further moves downward, the mating section remains unchanged, but the overhanging length of the slide rail 29 increases until the upper end of the slide rail 29 is flush with the upper end of the guide rail 23. As the slide rail 29 further moves downward, the mating section gradually decreases until the pre-pressing punch 4 reaches the lower dead point of its working stroke. At this time, the mating section is the smallest and the downward overhanging amount of the slide rail 29 is the largest. The length of the reserved section determines the length of the current mating section. A relatively long mating section can ensure the stability of the guide rail pair at this time.

[0061] Correspondingly, the pre-pressing punch 4 is fixedly installed at the lower end of the vertical arm 26. The pre-pressing punch 4, the vertical arm 26, the cross arm 28, the slide rail 29 and the cotton blocking plate 9 are assembled into a total assembly, and the overall stiffness is relatively good.

[0062] As an inherent configuration, the cylinder body part of the pre-pressing oil cylinder 7 can be fixed on the pre-pressing beam 17 or on the frame of the baler. The push rod extending downward from the pre-pressing oil cylinder 7 is fixedly connected to the pre-pressing punch 4.

[0063] In Figure 7 In the illustrated structure, a mounting seat protrudes inwardly in the middle of the mounting cross beam 18 for mounting the pre-pressing oil cylinder 7. In order to reduce the interference points, the pre-pressing oil cylinder 7 can be fixed on the mounting seat by a simple single-sided fixing method. Relatively speaking, the inward overhanging amount of the mounting seat will be very small.

[0064] The mounting seat can also be configured as a mounting plate with a through hole. The lower end of the cylinder body of the pre-pressing oil cylinder 7 is fixed on the mounting plate, and its push rod can move downward through the through hole.

[0065] Since the present invention does not propose an improvement in the fixing method of the pre-pressing oil cylinder 7 and the pre-pressing punch 4, the above mainly considers the part suitable for the installation of the pre-pressing oil cylinder 7 in the improved part of the present invention. Similarly, in the following text, for the unimproved parts, those skilled in the art can use the existing structures or configurations, which will not be elaborated here.

[0066] The following describes the part related to the improvement point of the present invention. As mentioned above, due to the existence of the reserved section, the problem of movement interference needs to be considered at this time. Based on the movement form of the slide rail 29, it moves in the vertical direction. Therefore, the pre-pressing beam 17 only needs to make way for the up and down directions and guide the slide rail 29 on both sides. First, look at the upper cross frame 24. In Figure 8 In the illustrated structure, the upper cross frame 24 forms a rectangular frame, and the rectangular opening corresponding to the rectangular frame is at least used for the avoidance of the upward movement of the reserved section.

[0067] Figure 8In the figure, the upper cross-frame 24 also adopts a steel member at the front and the rear, such as a channel steel member. The channel steel member is connected to the front and rear sides of the upper end of the frame 21 respectively to form the upper cross-frame 24 with a rectangular opening.

[0068] The connection between the steel member and the upper end of the frame 21 can be welding, riveting or bolt connection, and riveting is preferred.

[0069] For the middle cross-frame 22, like the aforementioned upper cross-frame 24, it can be fixedly connected to the frame 21 by welding, riveting or bolt connection.

[0070] The middle cross-frame 22 can also be made of steel members, such as channel steel members.

[0071] For the purpose of avoiding the guiding part 16, both the upper cross-frame 24 and the middle cross-frame 22 adopt the method of being fixed to the front and rear sides of the frame 21 by using steel members such as the aforementioned ones. At this time, in the dimension in the front and rear directions, the frame 21 is larger than the guiding part 16. Therefore, the space enclosed by the side frames such as the middle cross-frame 22 accommodates the guiding part 16.

[0072] Next, look at the preloading beam 17. The preloading beam 17 is a statically determinate frame body as a whole and is installed on the upper part of the frame of the baler. Figure 8 In the figure, the lower end of the frame 21 has a welded footrest 20. By means of the footrest 20, the preloading beam 17 can be installed on the upper part of the frame of the baler by bolt connection.

[0073] The installation of the frame 21 through the footrest 20 is a basic installation. Figure 8 In the figure, the footrest 20 is a horizontal plate-like structure. The footrest 20 is welded to the lower end of the frame 21. The footrest 20 extends outward and forms a right-angle space with the outer side surface of the frame 21. A side reinforcement plate with a right-angled triangle structure is also welded at the right-angle space to improve the overall strength and lateral stability.

[0074] The installation position by means of the footrest 20 is recorded as the first installation position. Considering the overall stiffness, in a better embodiment, the frame 21 can also be assisted in installation to improve the overall stability of the installation. In Figure 8 In the illustrated structure, a reinforcing fixing plate 25 is also provided on the lower side surface of the frame 21. If the strength of the frame 21 itself is relatively high, the reinforcing fixing plate 25 can be omitted.

[0075] Furthermore, an installation cross-beam 18 is adapted to the position of the reinforcing fixing plate 25. The installation cross-beam 18 is fixed to the frame of the baler, and the installation cross-beam 18 has an installation seat hole penetrating through the installation cross-beam 18 in the up and down directions.

[0076] Accordingly, the lower part of the preloading beam 17 is sleeved in the mounting seat hole, and the corresponding frame 21 is fixedly connected to the mounting cross beam 18 to form a second mounting position, which is higher than the first mounting position. Thus, the first mounting position and the second mounting position form a composite mounting structure, making the assembly structure of the preloading beam 17 on the baler relatively reliable.

[0077] The fixation between the frame 21 of the preloading beam 17 and the mounting cross beam 18 is mainly by bolt connection. Figure 7 In, a strengthening fixing frame 19 is provided. The strengthening fixing frame 19 is an angle member and correspondingly has a bottom plate and a vertical plate. Accordingly, the vertical plate of the strengthening fixing frame 19 is connected to Figure 8 the strengthening fixing plate 25 illustrated in by bolts. The bottom plate of the strengthening fixing frame 19 is welded, riveted or bolt-connected to the upper surface of the mounting cross beam 18.

[0078] In addition, the strengthening fixing frame 19 can simply be a vertical plate, which is directly welded on the mounting cross beam 18 or directly formed by bending the upper panel of the mounting cross beam 18 upward.

[0079] The guide pair is preferably a lubricant-free guide pair to avoid lubricant contaminating the lint. The lubricant-free guide pair is mainly a guide pair made of engineering plastics, or can also be a guide pair with a copper-based sliding surface.

[0080] It should be noted that regardless of which lubricant-free guide pair it is, the key point is that the guide surface belongs to the lubricant-free guide pair structural surface. For example, the base part of the guide rail 23 or the slide rail 29 can still be made of metal material, and a polytetrafluoroethylene slide plate or a tin bronze slide plate can be installed on its surface, etc.

[0081] Next, let's look at the improvement of the cotton blocking plate 9. Regarding a known cotton blocking plate 9, its defects have been specifically described in the previous text, mainly that the support points are relatively good and it is prone to deformation during the preloading process. In Figure 10 the illustrated structure, middle fixing holes 33 are arranged in the middle and upper parts of the cotton blocking plate 9; accordingly, a number of cross arms 28 are installed on the back side of the cotton blocking plate 9 through the middle fixing holes 33; the main function of the cross arms 28 is to strengthen the cotton blocking plate 9.

[0082] The cross arms 28 are Figure 1 mainly rectangular tubes, angle members or channel steel members with end plates sealed at both ends in. The cross arms 28 can be fixed to the cotton blocking plate 9 by riveting or bolt connection. Screw holes can also be opened on the end plates at both ends of the cross arms 28 to fixedly connect with the corresponding vertical arms 26 by screws, so that the vertical arms 26 are assembled with the cotton blocking plate 9 through the cross arms 28 into an overall structure with relatively high stiffness.

[0083] In addition, both ends of the cross arm 28 can also be welded to the vertical arm 26. At this time, the cross arm 28 can be made of section steel members such as rectangular tubes, angle steels or channel steels, and end plates are no longer provided.

[0084] Furthermore, in order to improve the overall structural stiffness, in Figure 9 the illustrated structure, there is also a straight groove for avoiding the gripper, such as Figure 11 the long groove 34 shown in [reference], which is a conventional structure of the baffle 9 and will not be elaborated here. A number of vertical additional stiffeners are provided at the lower part of the baffle 9, and the length of the additional stiffeners is greater than the length of the straight groove, but much smaller than Figure 3 the length of the stiffener 11 in [reference], so it is represented as a short stiffener 31 in Figure 11 [reference].

[0085] The relatively short short stiffener 31 is mainly used to avoid the assembly interference with the cross arm 28. At this time, the upper end of the short stiffener 31 is roughly joined to or disengaged from the lower surface of the lowermost cross arm 28 by a certain distance, and the certain distance is not greater than 10 mm.

[0086] Furthermore, in order to improve the overall stiffness, in Figure 10 the illustrated structure, the left and right sides of the baffle 9 have flanges 32, and the flanging direction of the flanges 32 is to turn up towards the back side of the baffle 9.

[0087] In addition, in Figure 9 the illustrated structure, the baffle 9 extends downward beyond the lower surface of the mounting plate 30, so that the extended part of the baffle 9 can be fixedly connected to the front side of the preloading ram 4, and the fixing method is screw connection or riveting.

[0088] In Figure 9 the illustrated structure, a number of reinforcing plates 27 are also provided between the two vertical arms 26. The middle part of the reinforcing plate 27 in the figure is a V-shaped groove to avoid the preloading oil cylinder 7.

Claims

1. A pre-pressing cotton baling device for lint cotton, characterized in that, Comprising: A pre-pressing beam, including two side frames arranged vertically and parallel to each other, and an upper cross-frame for connecting the two side frames at the upper end; wherein vertical guide rails are provided on one side of the two side frames opposite to each other. A guiding part, including two vertical arms arranged vertically and parallel to each other, and cotton blocking plates respectively connected to the vertical arms on both sides; wherein, sliding rails are provided on the two vertical arms to cooperate with the corresponding side guide rails to form a guide rail pair; the length of the sliding rails is greater than the length of the guide rails, and when the guiding part is at the upper dead center, a part of the sliding rails protrudes from the upper end of the guide rails to form a reserved section. A pre-pressing punch, fixedly installed at the lower end of the vertical arm; and A pre-pressing oil cylinder, the cylinder body of the pre-pressing oil cylinder is fixedly installed on the pre-pressing beam or the frame of the baling machine, and the push rod extending downward from the pre-pressing oil cylinder is fixedly connected to the pre-pressing punch.

2. The pre-pressing cotton pressing device of the lint baling machine according to claim 1, characterized in that, The length of the reserved section is one-eighth to one-fifth of the length of the guide rail.

3. The pre-pressing cotton device of the lint baling machine according to claim 1 or 2, characterized in that, The upper cross-frame is a rectangular frame, and the rectangular opening corresponding to the rectangular frame is at least used for avoiding the upward movement of the reserved section.

4. The pre-pressing cotton pressing device of the lint baling machine according to claim 1, characterized in that, A middle cross-frame for interconnecting the two side frames is provided in the middle of the pre-pressing beam; Correspondingly, a front middle cross-frame and a rear middle cross-frame are provided corresponding to the middle cross-frame for engaging and connecting with the front side or the rear side of the side frame.

5. The pre-pressing cotton device of the lint baling machine according to claim 1, characterized in that, Foot seats for assembling the pre-pressing beam on the frame of the baling machine are provided at the lower end of the pre-pressing beam to form a first installation position; Another installation cross-beam is provided, and the installation cross-beam has an installation seat hole penetrating through the installation cross-beam in the up-and-down direction; the installation cross-beam is correspondingly fixed on the frame of the baling machine; The lower part of the pre-pressing beam is sleeved in the installation seat hole, and the corresponding side frames are fixedly connected to the installation cross-beam to form a second installation position, and the second installation position is higher than the first installation position.

6. The pre-pressing cotton device of the lint baling machine according to claim 1, characterized in that, The guide rail pair is a lubricant-free guide rail pair.

7. The pre-pressing cotton compressing device of the lint baling machine according to claim 1, characterized in that, Middle fixing holes are arranged in the middle and upper parts of the cotton blocking plate; Correspondingly, a number of cross arms are installed on the back side of the cotton blocking plate through the middle fixing holes; Both ends of the cross arms are fixedly connected to the vertical arms respectively.

8. The pre-pressing cotton pressing device of the lint baling machine according to claim 7, characterized in that, The lower part of the cotton blocking plate including a straight groove for avoiding a hooking device is provided with a number of vertical additional reinforcing ribs, and the length of the additional reinforcing ribs is greater than the length of the straight groove.

9. The pre-pressing cotton device of the lint baling machine according to claim 1, 7 or 8, characterized in that Flanges are provided on the left and right sides of the cotton blocking plate; The back side of the lower end of the cotton blocking plate is fixedly connected to the front side of the pre-pressing punch; A number of reinforcing plates are also provided between the two vertical arms.

10. A packing machine, characterized in that, Including the pre-pressing cotton device of the lint baling machine according to any one of claims 1 to 9.

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