Automatic stamping forming mechanism for paper tray

Abstract

The utility model discloses a kind of paper tray automatic punch forming mechanism, comprising: punch forming structure, the punch forming structure includes base, the top of the base is fixedly connected with machine shell, the back of the machine shell is fixedly connected with support plate, the top of the front of the support plate is fixedly connected with transmission machine case, the top of the machine shell is fixedly connected with control machine case, the bottom of the transmission machine case is provided with top mould.The utility model can provide stable support for equipment by setting punch forming structure, while top mould and bottom mould cooperate to realize accurate punching of paper tray;Clamp can position paper raw materials, avoid raw material displacement when punching;By setting die replacement structure, it can be completed that only bolt needs to be disassembled to replace top mould, greatly shorten replacement working hours;By setting ejection mechanism, forming paper tray can be ejected without manual assistance, overall realize the automation and high efficiency of paper tray punching.

Description

Technical Field

[0001] This utility model relates to the field of paper product technology, specifically to an automatic stamping and forming mechanism for paper trays. Background Technology

[0002] In the paper products processing industry, paper plates, as commonly used disposable tableware, are in increasing demand with the development of the catering industry. The forming and processing of paper plates mainly relies on stamping equipment, which uses molds to press and shape paper raw materials, and is the core step in achieving large-scale production of paper plates. However, the mainstream paper plate stamping and forming equipment currently on the market still has many technical pain points in actual production applications, making it difficult to meet the needs of efficient, precise, and flexible production.

[0003] First, when switching between different specifications of paper trays, operators need to use a variety of tools to disassemble the fixed parts one by one. This not only consumes a lot of time, but also easily leads to a decrease in the accuracy of mold installation due to operational errors during the disassembly process. This in turn affects the dimensional consistency of the subsequent paper tray forming, resulting in quality problems such as irregular edges and bottom bulges and deformation, which have a double impact on production efficiency and product qualification rate.

[0004] Secondly, in the product ejection stage, existing equipment mostly adopts manual material handling. Manual material handling not only increases the labor intensity of operators, but also poses a safety hazard of accidental hand injury from moving parts of the equipment. In addition, the manual material handling speed is difficult to match with the stamping cycle of the equipment, making it inconvenient for users. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide an automatic paper tray stamping and forming mechanism that is convenient for users and solves the problem of inconvenience for users in the automatic paper tray stamping and forming mechanism.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic paper tray stamping and forming mechanism, comprising: A stamping structure includes a base, a housing fixedly connected to the top of the base, a support plate fixedly connected to the back of the housing, a transmission housing fixedly connected to the top of the front of the support plate, a control housing fixedly connected to the top of the housing, a top mold provided at the bottom of the transmission housing, and a bottom mold fixedly connected to the top of the control housing. A clamp is provided at the front and rear ends of the top of the bottom mold; A mold replacement structure includes a connecting plate. Through holes are provided on both sides of the top of the connecting plate. A connecting plate is slidably connected inside the through holes. The connecting plate is fixedly installed on both sides of the top of the top mold. A mating hole is provided on the right side of the connecting plate. A threaded sleeve is provided on the right side of the mating hole. The left side of the threaded sleeve passes through the mating hole and the connecting plate sequentially and extends into the interior of the mating hole. A bolt is provided on the left side of the mating hole. The right side of the bolt passes through the mating hole and the connecting plate sequentially and extends into the interior of the threaded sleeve. The surface of the bolt is threadedly connected to the threaded sleeve. An ejection mechanism is provided, comprising a spring fixedly connected to the bottom of the inner wall of the control box, a sliding plate fixedly connected to the top of the spring, and support legs fixedly connected to the four corners of the top of the sliding plate. The top of the support legs penetrates the bottom mold and extends into the interior of the bottom mold where an ejection plate is provided.

[0007] In a preferred embodiment of this utility model, the fixture includes a positioning roller, which is disposed at the front end and rear end of the top of the bottom mold. Connecting bearings are fixedly connected to both sides of the positioning roller. A connecting block is fixedly connected to the outer side of the outer ring of the connecting bearing. A cylinder is disposed at the bottom of the connecting block, and the output end of the cylinder is fixedly connected to the bottom of the connecting block.

[0008] As a preferred embodiment of this invention, protective plates are fixedly connected to both sides of the bottom mold, and the surface of the cylinder is fixedly connected to the interior of the protective plates.

[0009] As a preferred embodiment of this utility model, a storage groove is provided at the bottom of the inner wall of the bottom mold, and the surface of the support leg is slidably connected to the inside of the storage groove.

[0010] In a preferred embodiment of this invention, sliders are fixedly connected to both sides of the sliding plate, and grooves are provided on both sides of the inner wall of the control box, with the sliders slidably connected to the grooves.

[0011] As a preferred embodiment of this invention, a flange is fixedly connected to the top of the support leg surface, and the top of the flange is fixedly connected to the bottom of the ejector plate by a threaded bolt and a nut.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides stable support for the equipment by setting a stamping and forming structure. At the same time, the top mold and the bottom mold cooperate to achieve precise stamping of paper trays. The clamp can position the paper raw material to prevent the material from shifting during stamping. By setting a mold replacement structure, the top mold can be replaced by simply removing the bolts, which greatly shortens the replacement time. By setting an ejection mechanism, the formed paper tray can be ejected without manual assistance. The whole process realizes the automation and high efficiency of paper tray stamping, improving production efficiency and product forming accuracy.

[0013] 2. This utility model can adapt to paper raw materials of different thicknesses by setting a clamp; the positioning roller can rotate flexibly through the connection bearing, which can accurately position the raw material when conveying it, reduce the friction between the raw material and the roller, avoid damage to the raw material, and ensure the smooth conveying of the raw material, thereby further improving the quality stability of paper tray forming.

[0014] 3. By setting up a protective plate, this utility model can fix and protect the cylinder: prevent the cylinder from shifting due to vibration during operation, and ensure the reliability of the fixture positioning function. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present utility model; Figure 2 This utility model Figure 1 A partial sectional view of the structure; Figure 3 This utility model Figure 1 3D structural diagram of the clamping fixture; Figure 4 This utility model Figure 1 3D structural diagram of the mold replacement structure; Figure 5 This utility model Figure 1 Three-dimensional structural diagram of the ejector mechanism.

[0016] In the diagram: 1. Stamping structure; 101. Base; 102. Housing; 103. Support plate; 104. Transmission box; 105. Control box; 106. Top mold; 107. Bottom mold; 2. Fixture; 21. Positioning roller; 22. Connecting bearing; 23. Connecting block; 24. Cylinder; 3. Mold changing structure; 31. Connecting plate; 32. Through hole; 33. Connecting plate; 34. Mating hole; 35. Screw sleeve; 36. Bolt; 4. Ejection mechanism; 41. Spring; 42. Sliding plate; 43. Support leg; 44. Ejection plate; 5. Protective plate; 6. Storage slot; 7. Slider; 8. Flange. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 5 As shown, the present invention provides an automatic paper tray stamping and forming mechanism, comprising: The stamping structure 1 includes a base 101, a housing 102 fixedly connected to the top of the base 101, a support plate 103 fixedly connected to the back of the housing 102, a transmission housing 104 fixedly connected to the top of the front of the support plate 103, a control housing 105 fixedly connected to the top of the housing 102, a top mold 106 provided at the bottom of the transmission housing 104, and a bottom mold 107 fixedly connected to the top of the control housing 105. Fixture 2 is provided at the front and rear ends of the top of the bottom mold 107; The mold replacement structure 3 includes a connecting plate 31. Both sides of the top of the connecting plate 31 are provided with through holes 32. A connecting plate 33 is slidably connected inside the through holes 32. The connecting plate 33 is fixedly installed on both sides of the top of the top mold 106. A mating hole 34 is provided on the right side of the connecting plate 31. A threaded sleeve 35 is provided on the right side of the mating hole 34. The left side of the threaded sleeve 35 passes through the mating hole 34 and the connecting plate 33 in sequence and extends into the interior of the mating hole 34. A bolt 36 is provided on the left side of the mating hole 34. The right side of the bolt 36 passes through the mating hole 34 and the connecting plate 33 in sequence and extends into the interior of the threaded sleeve 35. The surface of the bolt 36 is threadedly connected to the threaded sleeve 35. Ejection mechanism 4 includes spring 41, which is fixedly connected to the bottom of the inner wall of control box 105. A sliding plate 42 is fixedly connected to the top of spring 41. Support legs 43 are fixedly connected to the four corners of the top of sliding plate 42. The top of support legs 43 penetrates the bottom mold 107 and extends into the interior of the bottom mold 107 where an ejection plate 44 is provided.

[0019] refer to Figure 3 The fixture 2 includes a positioning roller 21, which is set at the front end and rear end of the top of the bottom mold 107. Both sides of the positioning roller 21 are fixedly connected to a connecting bearing 22. A connecting block 23 is fixedly connected to the outer side of the outer ring of the connecting bearing 22. A cylinder 24 is set at the bottom of the connecting block 23. The output end of the cylinder 24 is fixedly connected to the bottom of the connecting block 23.

[0020] As a technical optimization of this utility model, by setting the clamp 2, it can be adapted to paper raw materials of different thicknesses; the positioning roller 21 can rotate flexibly through the connecting bearing 22, which can accurately position the raw material when conveying the raw material, reduce the friction between the raw material and the roller, avoid the raw material damage, and ensure the smooth conveying of the raw material, further improving the quality stability of paper tray forming.

[0021] refer to Figure 1 The bottom mold 107 has protective plates 5 fixedly connected to both sides, and the surface of the cylinder 24 is fixedly connected to the inside of the protective plates 5.

[0022] As a technical optimization of this utility model, by setting the protective plate 5, the cylinder 24 can be fixed and protected: to prevent the cylinder 24 from being displaced due to vibration during operation, and to ensure the reliability of the positioning function of the clamp 2.

[0023] refer to Figure 2 The bottom of the inner wall of the bottom mold 107 is provided with a storage groove 6, and the surface of the support leg 43 is slidably connected to the inside of the storage groove 6.

[0024] As a technical optimization of this utility model, by setting the storage groove 6, storage space can be provided for the ejector plate 44: when the ejector mechanism 4 is working, the ejector plate 44 can be put into the storage groove 6, thus making it convenient for users to use.

[0025] refer to Figure 2 Both sides of the sliding plate 42 are fixedly connected to sliders 7, and both sides of the inner wall of the control box 105 are provided with sliding grooves, and the sliders 7 are slidably connected to the sliding grooves.

[0026] As a technical optimization of this utility model, by setting the slider 7 and the slide groove, the up and down movement of the sliding plate 42 can be precisely guided, avoiding the sliding plate 42 from shifting left and right under the drive of the spring 41, further ensuring the stability of the paper tray ejection mechanism 4, and reducing the damage rate of the paper tray during the ejection process.

[0027] refer to Figure 5 A flange 8 is fixedly connected to the top of the surface of the support leg 43, and the top of the flange 8 is fixedly connected to the bottom of the ejector plate 44 by a threaded bolt and a nut.

[0028] As a technical optimization of this utility model, by setting flange 8, the connection between the ejector plate 44 and the support leg 43 is not only more secure, preventing the ejector plate 44 from falling off when ejecting the paper tray, but also facilitates the disassembly and replacement of the ejector plate 44. When it is necessary to adapt to paper trays of different specifications, only the threaded bolts and nuts need to be removed to replace the corresponding ejector plate 44, thereby improving the adaptability of the equipment to the production of paper trays of different specifications and enhancing the versatility of the equipment.

[0029] The working principle and usage process of this utility model are as follows: During use, the corresponding top mold 106 and bottom mold 107 are installed via the mold replacement structure 3. During installation, the connecting plates 33 on both sides of the top mold 106 are aligned with the through holes 32 of the connecting plate 31 and inserted. Then, the threaded sleeve 35 passes through the connecting plate 33 from the right side of the mating hole 34. Subsequently, the bolt 36 passes through the connecting plate 33 from the left side of the mating hole 34 and is screwed into the threaded sleeve 35. The connecting plate 31 and connecting plate 33 are fixed through the threaded connection, thus completing the assembly of the top mold 106 and the transmission housing 104. After preparation, the equipment starts running. The paper raw material is conveyed from the front end of the bottom mold 107 to the top of the mold cavity. At this time, the clamp 2... The cylinder 24 is activated, and its output end pushes the connecting block 23 downward. The connecting block 23 drives the connecting bearing 22 and the positioning roller 21 to move downward until the positioning roller 21 contacts the surface of the paper material and applies appropriate pressure. During the continued material conveying process, the positioning roller 21 rotates flexibly through the connecting bearing 22, which not only limits the material and prevents it from shifting before stamping, but also avoids damage to the material due to friction. At the same time, the protective plates 5 on both sides of the bottom mold 107 fix the cylinder 24 to prevent the cylinder 24 from shifting due to vibration during operation and affecting the positioning accuracy. After the material completely covers the cavity of the bottom mold 107, the transmission box 104 receives the signal from the control box 105. The top mold 106 is driven to move downwards, gradually approaching the bottom mold 107 and stamping the paper material located between the two molds. During the stamping process, the top mold 106 squeezes the material to conform to the shape of the cavity of the bottom mold 107. At the same time, the top mold 106 applies downward pressure to the ejector plate 44 inside the bottom mold 107. The ejector plate 44 drives the sliding plate 42 to move downwards through the support leg 43. The sliding plate 42 compresses the spring 41 at the bottom of the inner wall of the control box 105. At this time, the support leg 43 slides downwards along the receiving groove 6 on the inner wall of the bottom mold 107, and the sliders 7 on both sides of the sliding plate 42 slide synchronously along the sliding groove on the inner wall of the control box 105 to ensure that the sliding plate 42 moves downwards. 2. The movement of the support leg 43 is smooth, avoiding the tilt of the ejector plate 44 which affects the stamping accuracy. After the stamping is completed and the paper tray is formed, the transmission box 104 drives the top mold 106 to reset upward. At this time, the pressure of the top mold 106 on the ejector plate 44 disappears, the compressed spring 41 releases elastic potential energy, and pushes the sliding plate 42 to move upward. The sliding plate 42 drives the ejector plate 44 to move upward along the receiving groove 6 through the support leg 43. The ejector plate 44 ejects the formed paper tray from the cavity of the bottom mold 107, completing the automatic forming and demolding of the paper tray. Then, the positioning roller (21) is reset by the cylinder (24), and the external transmission device outputs the formed paper tray from the rear of the stamping forming structure (1) for the next processing.

[0030] In summary, this automatic paper tray stamping and forming mechanism provides stable support for the equipment through the stamping and forming structure 1. Simultaneously, the top mold 106 and bottom mold 107 work together to achieve precise paper tray stamping. The clamp 2 positions the paper raw material, preventing displacement during stamping. The mold replacement structure 3 allows for the replacement of the top mold 106 simply by removing bolts 36, significantly reducing replacement time. The ejection mechanism 4 ejects the formed paper tray without manual assistance, thus achieving automation and high efficiency in paper tray stamping, improving production efficiency and product forming accuracy.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic stamping and forming mechanism for paper trays, characterized in that, include: A stamping structure (1) includes a base (101), a housing (102) is fixedly connected to the top of the base (101), a support plate (103) is fixedly connected to the back of the housing (102), a transmission housing (104) is fixedly connected to the top of the front of the support plate (103), a control housing (105) is fixedly connected to the top of the housing (102), a top mold (106) is provided at the bottom of the transmission housing (104), and a bottom mold (107) is fixedly connected to the top of the control housing (105). The clamp (2) is provided at the front and rear ends of the top of the bottom mold (107); The mold replacement structure (3) includes a connecting plate (31). Both sides of the top of the connecting plate (31) are provided with through holes (32). A connecting plate (33) is slidably connected inside the through holes (32). The connecting plate (33) is fixedly installed on both sides of the top of the top mold (106). A mating hole (34) is provided on the right side of the connecting plate (31). A threaded sleeve (35) is provided on the right side of the mating hole (34). The left side of the threaded sleeve (35) passes through the mating hole (34) and the connecting plate (33) in sequence and extends into the interior of the mating hole (34). A bolt (36) is provided on the left side of the mating hole (34). The right side of the bolt (36) passes through the mating hole (34) and the connecting plate (33) in sequence and extends into the interior of the threaded sleeve (35). The surface of the bolt (36) is threadedly connected to the threaded sleeve (35). The ejection mechanism (4) includes a spring (41), which is fixedly connected to the bottom of the inner wall of the control box (105). A sliding plate (42) is fixedly connected to the top of the spring (41). Support legs (43) are fixedly connected to the four corners of the top of the sliding plate (42). The top of the support legs (43) passes through the bottom mold (107) and extends into the interior of the bottom mold (107) where an ejection plate (44) is provided.

2. The automatic paper tray stamping and forming mechanism according to claim 1, characterized in that: The fixture (2) includes a positioning roller (21), which is set at the front end and rear end of the top of the bottom mold (107). Both sides of the positioning roller (21) are fixedly connected to a connecting bearing (22). A connecting block (23) is fixedly connected to the outer side of the outer ring of the connecting bearing (22). A cylinder (24) is set at the bottom of the connecting block (23). The output end of the cylinder (24) is fixedly connected to the bottom of the connecting block (23).

3. The automatic paper tray stamping and forming mechanism according to claim 2, characterized in that: The bottom mold (107) is fixedly connected to both sides of the protective plate (5), and the surface of the cylinder (24) is fixedly connected to the inside of the protective plate (5).

4. The automatic paper tray stamping and forming mechanism according to claim 3, characterized in that: The bottom of the inner wall of the bottom mold (107) is provided with a storage groove (6), and the surface of the support leg (43) is slidably connected to the inside of the storage groove (6).

5. The automatic paper tray stamping and forming mechanism according to claim 4, characterized in that: Both sides of the sliding plate (42) are fixedly connected to sliders (7), and both sides of the inner wall of the control box (105) are provided with sliding grooves, and the sliders (7) are slidably connected to the sliding grooves.

6. The automatic paper tray stamping and forming mechanism according to claim 5, characterized in that: A flange (8) is fixedly connected to the top of the surface of the support leg (43), and the top of the flange (8) is fixedly connected to the bottom of the ejector plate (44) by a threaded bolt and a nut.

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