A closed single point press

Abstract

The utility model discloses a closed single-point press, including a machine body and wall panels arranged on both sides of the machine body, both wall panels are provided with openings and heat dissipation grooves, a protective cover is arranged on the top of the machine body, both wall panels are provided with sliding tracks, the protective cover is slidably connected between the two sliding tracks, the protective cover moves along the sliding tracks to achieve synchronous exposure or shielding of the heat dissipation grooves on the two wall panels; baffle assemblies are arranged at both wall panels, and the baffle assemblies are adjusted to achieve exposure or shielding of the openings. The utility model has strong practicality, the protective cover moves along the sliding track, and is adaptively adjusted according to the state of the press, and the heat dissipation groove is shielded when the press is not working to prevent foreign particles from entering the inside of the press, and the heat dissipation groove is exposed when the press is working to achieve a balance between heat dissipation and protection, and the design of the baffle assembly can adjust the state of the opening, which is convenient for operators to adjust according to actual conditions and enhance the safety performance of the press.

Description

Technical Field

[0001] The utility model belongs to the technical field of presses, and in particular relates to a closed single-point press. Background Art

[0002] The closed single-point press is an important mechanical processing equipment, mainly used to complete cold stamping processes such as blanking, forming, bending, shallow drawing, correction, and hot trimming of forged parts. The closed single-point press will generate a lot of heat during operation. If the closed single-point press surface is not equipped with a heat dissipation groove, the internal temperature of the press will rise during operation, and long-term use will affect the performance and stability of the press. However, if a heat dissipation groove is set on the surface of the closed single-point press, dust and impurities can easily enter the press through the heat dissipation groove and affect the internal parts of the press. Summary of the invention

[0003] The utility model aims to provide a technical solution for a closed single-point press to address the deficiencies in the prior art. The overall structure is compact and reasonable, the design is unique, and the practicability is strong. The protective cover moves along the sliding track and is adaptively adjusted according to the state of the press. When the press is not working, the heat dissipation groove is blocked to prevent foreign particles from entering the inside of the press. When the press is working, the heat dissipation groove is exposed to achieve a balance between heat dissipation and protection. At the same time, the design of the baffle assembly can adjust the state of the opening, which is convenient for the operator to adjust according to the actual situation and enhances the safety performance of the press.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A closed single-point press comprises a machine body and wall panels arranged on both sides of the machine body, both wall panels are provided with openings and heat dissipation grooves, a protective cover is arranged on the top of the machine body, both wall panels are provided with sliding tracks, the protective cover is slidably clamped between the two sliding tracks, and the protective cover moves along the sliding tracks to achieve synchronous exposure or shielding of the heat dissipation grooves on the two wall panels; baffle assemblies are arranged at both wall panels, and the baffle assemblies are adjusted to achieve exposure or shielding of the openings; the utility model has a compact and reasonable overall structure, a unique design, and strong practicality, the protective cover moves along the sliding track, and is adaptively adjusted according to the state of the press, and the heat dissipation groove is shielded when the press is not working to prevent foreign particles from entering the inside of the press, and the heat dissipation groove is exposed when the press is working to achieve a balance between heat dissipation and protection, and at the same time, the design of the baffle assembly can adjust the state of the opening, which is convenient for operators to adjust according to actual conditions and enhances the safety performance of the press.

[0006] Furthermore, the protective cover has a U-shaped structure, and both ends of the protective cover are provided with a dovetail slide groove 1, which matches the sliding track. The protective cover is slidably connected to the sliding track through the dovetail slide groove 1. The structural design is ingenious and reasonable. The movement and adjustment of the protective cover can synchronously realize the exposure or shielding of the heat dissipation grooves on both sides of the press. The use and adjustment are convenient and simple. The shape design of the dovetail slide groove 1 can ensure the stability and reliability of the sliding connection between the protective cover and the sliding track, and ensure the stability of the structure. The top of the protective cover is just set on the top of the machine body, and the top of the press can also be shielded and protected to a certain extent through the protective cover.

[0007] Furthermore, limit blocks are provided at both the front and rear ends of the sliding track, the limit blocks are matched and clamped on the sliding track, and the limit blocks are fixedly connected to the sliding track by screws, and the two limit blocks are respectively located on the front and rear sides of the protective cover. The design of two limit blocks can limit the moving stroke of the protective cover on the sliding track, prevent the protective cover from sliding off the sliding track during transition, and improve operational safety and reliability. When the protective cover hits the limit block at the rear end, the heat dissipation slot is completely exposed in this state. When the protective cover hits the limit block at the front end, the heat dissipation difference is completely blocked in this state, so that the operator can control the blocking or exposure operation of the heat dissipation slot. The limit block and the sliding track are fixed with screws, which is easy to install and disassemble, and can also ensure the installation firmness and stability of the limit block.

[0008] Furthermore, there is a gap groove between the top of the protective cover and the top surface of the body, and pull handles are provided at both ends of the protective cover. The structural design is ingenious and reasonable. The top of the protective cover is not in direct contact with the top surface of the body. A gap groove is formed between the two to allow air circulation, thereby ensuring the heat dissipation performance of the body surface. The design of the pull handle is more user-friendly, making the movement and adjustment of the protective cover more convenient.

[0009] Furthermore, an upper limit rod is arranged above the baffle assembly, and a lower limit rod is arranged below the baffle assembly. The baffle assembly limit is arranged between the upper limit rod and the lower limit rod, and the opening is located between the upper limit rod and the lower limit rod. Extended stop blocks are arranged at the front ends of the upper limit rod and the lower limit rod. The upper limit rod and the lower limit rod limit the vertical movement of the baffle assembly, which is more conducive to the adjustment operation of the baffle assembly in the horizontal direction, and improves the structural stability and reliability. The extended stop block is an integrated structure with the upper limit rod and the lower limit rod, which is convenient for actual processing and forming, and also ensures the structural strength of the upper limit rod and the lower limit rod. The design of the extended stop block can play a limiting role, which is convenient for the subsequent adjustment and positioning of the baffle assembly.

[0010] Furthermore, the upper limit positioning rod and the sliding track located on the same side wall panel are an integrally formed structure, and a transition slide groove is formed between the upper limit positioning rod and the sliding track, and the end of the protective cover is matched and slidably connected in the transition slide groove. The structural design is compact and reasonable. The upper limit positioning rod and the sliding track on the corresponding side are designed as an integral structure, which is convenient for actual processing and forming, and can also increase the stability and firmness of the overall structure. A transition slide groove is also formed between the upper limit positioning rod and the sliding track, so that the end of the protective cover is matched and connected in the transition slide groove, and cooperates with the dovetail slide groove and the sliding track to make the sliding process of the protective cover more stable and smooth.

[0011] Furthermore, the baffle assembly includes a front side plate, a corrugated telescopic section and a rear side plate, the corrugated telescopic section is connected and arranged between the front side plate and the rear side plate, the upper and lower ends of the rear side plate are provided with fixed ends, the two fixed ends are respectively fixed with screws to the upper limit rod and the lower limit rod, the front side plate is slidably limited between the upper limit rod and the lower limit rod, an operating handle is provided on the front side plate, the structural design is ingenious and reasonable, the rear side plate is fixed to the upper limit rod and the lower limit rod through the fixed end, the overall stable installation of the baffle assembly is realized, the fixed end is fixed to the upper limit rod and the lower limit rod with screws to ensure the installation firmness and reliability, and it is also convenient for actual assembly and disassembly, The contraction section connects the front side plate and the rear side plate, and the corrugated telescopic plate has good telescopicity, so that the overall length of the baffle assembly can be adjusted by pulling the front side plate, so that the baffle assembly can expose or cover the opening according to actual needs. When the press is not working, the baffle assembly will cover the opening to improve the structural safety performance and prevent the operator's body from entering the working danger zone of the press through the opening. When the opening needs to be used, the opening can be exposed by adjusting the baffle assembly to facilitate the operator's use. The design of the operating handle on the front side plate can facilitate the operator's adjustment operation of the baffle assembly, and the design is more user-friendly.

[0012] Furthermore, guide sliders are provided at the upper and lower ends of the front side plate, and guide grooves are provided on the opposite surfaces of the upper limit rod and the lower limit rod. The guide slider matches the guide groove, and the guide slider is slidably engaged in the guide groove. The guide slider matches the guide groove, which effectively ensures the stability and accuracy of the front side plate during sliding, limits the shaking and deviation of the front side plate during sliding, makes the entire adjustment process smoother, and improves operational safety and reliability.

[0013] The locking bolt is formed on the locking cam face of the locking cam and is convenient for installation and disassembly. When the locking cam needs to be removed from the locking cam face to move the locking cam, the locking cam is removed from the locking cam face and the locking cam is then pulled to lock the locking cam face.

[0014] Furthermore, a limit piece is provided at the front end of the upper limit rod and the front end of the lower limit rod, and the two limit pieces are arranged opposite to each other up and down, and the limit piece includes a guide plate and a limit plug block, the guide plate is fixedly connected to the upper limit rod and the lower limit rod, a dovetail slide groove 2 is provided on the guide plate, a dovetail slider is provided on the limit plug block, and the limit plug block is slidably engaged in the dovetail slide groove 2 through the dovetail slider, and an operating rod is provided on the limit plug block, and the operating rod can facilitate the movement and adjustment of the limit plug block, and limited slots are provided at the upper and lower ends of the front side plate, and a plug-in portion is provided on the limit plug block, and the plug-in portion matches the limited slot, and when the opening is blocked, the plug-in portion is plugged and limited in the limited slot to limit the movement of the front side plate, and the overall structural design is compact and reasonable, and the design of the limit piece can be used in front of the front baffle When it moves to the right position (that is, the baffle assembly completely blocks the opening), the movement of the front baffle is limited by the limit piece, so as to effectively ensure the blocking effect of the opening, and cooperate with the design of the extended block at the front end of the upper limit rod and the lower limit rod to ensure that when the front baffle moves forward and hits the extended block, the plug-in portion on the limit plug is aligned with the limit slot, and then the limit plug is moved along the second dovetail slide groove so that the plug-in portion is matched and inserted into the corresponding limit slot to limit the movement of the limit plate. It is easy to use and operate, and ensures that the front side plate cannot be moved and adjusted after the baffle assembly completely blocks the opening, thereby ensuring the stability and safety of the opening when blocking. When the opening needs to be exposed, the limit plug is moved along the second dovetail slide groove so that the plug-in portion is completely disengaged from the limit slot, and then the baffle assembly is adjusted.

[0015] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0016] The utility model has a compact and reasonable overall structure, a unique design and strong practicality. The protective cover moves along the sliding track and is adaptively adjusted according to the state of the press. When the press is not working, the heat dissipation groove is blocked to prevent foreign particles from entering the inside of the press. When the press is working, the heat dissipation groove is exposed to achieve a balance between heat dissipation and protection. At the same time, the design of the baffle assembly can adjust the state of the opening, which is convenient for the operator to adjust according to the actual situation, thereby enhancing the safety performance of the press. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the state structure of a baffle assembly when the opening in a closed single-point press of the utility model is exposed;

[0019] Figure 2 for Figure 1 A schematic diagram of the side plan structure of ;

[0020] Figure 3 A schematic diagram of the state structure of the baffle assembly when the opening is blocked in the utility model;

[0021] Figure 4 This is a schematic diagram of the state structure of the protective cover when the heat dissipation slot is blocked in the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the heat dissipation slot of the utility model on the wall panel;

[0023] Figure 6 for Figure 5 A schematic diagram of the structure from another perspective;

[0024] Figure 7 This is a structural schematic diagram of the baffle assembly of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the limit column in the utility model;

[0026] Fig. 9 It is a structural schematic diagram of the limit plug block in the utility model;

[0027] Fig.10 It is a structural schematic diagram of the protective cover in the utility model.

[0028] In the figure: 1-body; 2-wall panel; 3-opening; 4-heat sink; 5-protective cover; 6-sliding track; 7-baffle assembly; 8-dovetail slide groove one; 9-limit block; 10-screw; 11-clearance groove; 12-pull handle; 13-upper limit rod; 14-lower limit rod; 15-extension block; 16-transition slide groove; 17-front side plate; 18-corrugated telescopic section; 19-rear side plate; 20-fixed end; 21-operating handle; 22-guide slider; 23-guide slide groove; 24-positioning screw hole; 25-limiting column; 26-connecting part; 27-blocking part; 28-limiting piece; 29-guide plate; 30-limiting plug; 31-dovetail slide groove two; 32-dovetail slider; 33-operating rod; 34-limiting slot; 35-plug-in part. DETAILED DESCRIPTION

[0029] like Figures 1 to 10 As shown, a closed single-point press of the utility model comprises a machine body 1 and wall panels 2 arranged on both sides of the machine body 1, both wall panels 2 are provided with openings 3 and heat dissipation grooves 4, a protective cover 5 is arranged on the top of the machine body 1, both wall panels 2 are provided with sliding rails 6, the protective cover 5 is slidably connected between the two sliding rails 6, and the protective cover 5 moves along the sliding rails 6 to realize the synchronous exposure or shielding of the heat dissipation grooves 4 on the two wall panels 2; baffle components 7 are arranged at both wall panels 2, and the baffle components 7 are adjusted to realize the exposure or shielding of the openings 3; the utility model has a compact and reasonable overall structure, a unique design, and strong practicality. The protective cover 5 moves along the sliding rails 6 and is adaptively adjusted according to the state of the press. When the press is not working, the heat dissipation grooves 4 are shielded to prevent foreign particles from entering the inside of the press. When the press is working, the heat dissipation grooves 4 are exposed to achieve a balance between heat dissipation and protection. At the same time, the design of the baffle component 7 can adjust the state of the opening 3, which is convenient for the operator to adjust according to the actual situation and enhance the safety performance of the press.

[0030] The protective cover 5 is of U-shaped structure, and both ends of the protective cover 5 are provided with dovetail slide grooves 8, which match the sliding track 6. The protective cover 5 is slidably connected to the sliding track 6 through the dovetail slide grooves 8. The structural design is ingenious and reasonable. Through the movement and adjustment of the protective cover 5, the heat dissipation slots 4 on both sides of the press can be exposed or shielded synchronously. The use and adjustment are convenient and simple. The shape design of the dovetail slide groove 8 can ensure the stability and reliability of the sliding connection between the protective cover 5 and the sliding track 6, and ensure the stability of the structure. The top of the protective cover 5 is just set on the top of the body 1, and the top of the press can also be shielded and protected to a certain extent through the protective cover 5. There is a gap groove 11 between the top of the protective cover 5 and the top surface of the body 1, and pull handles 12 are provided at both ends of the protective cover 5. The structural design is ingenious and reasonable. The top of the protective cover 5 is not in direct contact with the top surface of the body 1. The gap groove 11 formed between the two allows air circulation, thereby ensuring the heat dissipation performance of the surface of the body 1. The design of the pull handle 12 is more humane, making the movement and adjustment of the protective cover 5 more convenient.

[0031] Limiting blocks 9 are provided at both the front and rear ends of the sliding track 6, the limiting blocks 9 are matched and clamped on the sliding track 6, and the limiting blocks 9 are fixedly connected to the sliding track 6 by screws 10, and the two limiting blocks 9 are respectively located on the front and rear sides of the protective cover 5. The design of two limiting blocks 9 can limit the moving stroke of the protective cover 5 on the sliding track 6, prevent the protective cover 5 from sliding out of the sliding track 6 during transition, and improve the operational safety and reliability. When the protective cover 5 hits the limiting block 9 at the rear end, the heat dissipation slot 4 is completely exposed in this state. When the protective cover 5 hits the limiting block 9 at the front end, the heat dissipation difference is completely blocked in this state, so that the operator can control the blocking or exposure operation of the heat dissipation slot 4. The limiting blocks 9 and the sliding track 6 are fixed with screws 10, which is convenient for installation and disassembly, and can also ensure the installation firmness and stability of the limiting blocks 9.

[0032] An upper limit rod 13 is arranged above the baffle assembly 7, and a lower limit rod 14 is arranged below the baffle assembly 7. The baffle assembly 7 is limited between the upper limit rod 13 and the lower limit rod 14, and the opening 3 is located between the upper limit rod 13 and the lower limit rod 14. The front ends of the upper limit rod 13 and the lower limit rod 14 are provided with extended stoppers 15. The upper limit rod 13 and the lower limit rod 14 limit the movement of the baffle assembly 7 in the vertical direction, which is more conducive to the adjustment operation of the baffle assembly 7 in the horizontal direction and improves the structural stability and reliability. The extended stopper 15 is an integrated structure with the upper limit rod 13 and the lower limit rod 14, which is convenient for actual processing and forming, and also ensures the structural strength of the upper limit rod 13 and the lower limit rod 14. The design of the extended stopper 15 can play a limiting role, which is convenient for the subsequent adjustment and positioning of the baffle assembly 7. The upper limit positioning rod 13 and the sliding track 6 located on the same side wall panel 2 are an integrally formed structure, and a transition slide groove 16 is formed between the upper limit positioning rod 13 and the sliding track 6, and the end of the protective cover 5 is matched and slidably connected in the transition slide groove 16. The structural design is compact and reasonable. The upper limit positioning rod 13 and the sliding track 6 on the corresponding side are designed as an integral structure, which is convenient for actual processing and forming, and can also increase the stability and firmness of the overall structure. Moreover, a transition slide groove 16 is formed between the upper limit positioning rod 13 and the sliding track 6, so that the end of the protective cover 5 is matched and connected in the transition slide groove 16, and the dovetail slide groove 8 and the sliding track 6 are matched to make the sliding process of the protective cover 5 more stable and smooth.

[0033] The baffle assembly 7 includes a front side plate 17, a corrugated expansion section 18 and a rear side plate 19. The corrugated expansion section 18 is connected and arranged between the front side plate 17 and the rear side plate 19. The upper and lower ends of the rear side plate 19 are both provided with fixed ends 20. The two fixed ends 20 are respectively fixed with screws 10 to the upper limit rod 13 and the lower limit rod 14. The front side plate 17 is slidably limited between the upper limit rod 13 and the lower limit rod 14. An operating handle 21 is provided on the front side plate 17. The structural design is ingenious and reasonable. The rear side plate 19 is fixed with the upper limit rod 13 and the lower limit rod 14 through the fixed end 20 to achieve the overall stable installation of the baffle assembly 7. The fixed end 20 is fixed with the upper limit rod 13 and the lower limit rod 14 by screws 10 to ensure the firmness and reliability of the installation. To facilitate actual assembly and disassembly, the corrugated telescopic section 18 connects the front side plate 17 and the rear side plate 19. The corrugated telescopic plate has good elasticity, so that the overall length of the baffle assembly 7 can be adjusted by pulling the front side plate 17, so that the baffle assembly 7 can expose or cover the opening 3 according to actual needs. When the press is not working, the baffle assembly 7 covers the opening 3 to improve the structural safety performance and prevent the operator's body part from entering the working danger zone of the press through the opening 3. When the opening 3 needs to be used, the opening 3 can be exposed by adjusting the baffle assembly 7 to facilitate the operator's use. The design of the operating handle 21 on the front side plate 17 can facilitate the operator's adjustment operation of the baffle assembly 7, and the design is more humane. Guide slide blocks 22 are provided at the upper and lower ends of the front side plate 17, and guide grooves 23 are provided on the opposite surfaces of the upper limit rod 13 and the lower limit rod 14. The guide slide blocks 22 match the guide grooves 23, and the guide slide blocks 22 are slidably engaged in the guide grooves 23. The guide slide blocks 22 match the guide grooves 23, which effectively ensures the stability and accuracy of the front side plate 17 during sliding, limits the shaking and deviation of the front side plate 17 during sliding, makes the entire adjustment process smoother, and improves the safety and reliability of operation.

[0034] The upper limit rod 13 and the lower limit rod 14 are provided with positioning screw holes 24 on the opposite surfaces. The positioning screw holes 24 are arranged on the rear side of the opening 3. The internal threads of the positioning screw holes 24 are screwed to the limiting column 25. The limiting column 25 includes a connecting portion 26 and a stopper 27 of an integrally formed structure to ensure the overall structural strength and facilitate actual processing and forming. The connecting portion 26 is matched and screwed in the positioning screw hole 24, and the stopper 27 is exposed on the outside of the positioning screw hole 24. When the opening 3 is exposed, the limiting column 25 is installed in the positioning screw hole 24 to limit the movement of the front side plate 17. The positioning screw hole 24 can realize the limiting column 25 is installed, the connecting part 26 is a threaded part used to match and tighten in the positioning screw hole 24, and the resisting part 27 is exposed on the outside to limit the movement of the front side plate 17, forming a physical barrier, limiting the movement range of the front side plate 17, avoiding the danger caused by accidental sliding or movement of the front side plate 17, and improving the structural safety. The threaded connection of the limit column 25 is convenient for installation and disassembly. When it is necessary to block the opening 3 to move the front side plate 17, the limit column 25 is removed from the positioning screw hole 24, and then the front side plate 17 is pulled to adjust the length of the baffle assembly 7. The design is ingenious and the adjustment is convenient and simple.

[0035] The front ends of the upper limit rod 13 and the lower limit rod 14 are both provided with a limit member 28, and the two limit members 28 are arranged opposite to each other up and down. The limit member 28 includes a guide plate 29 and a limit plug 30, and the guide plate 29 is fixedly connected to the upper limit rod 13 and the lower limit rod 14. A dovetail slide groove 2 31 is provided on the guide plate 29, and a dovetail slider 32 is provided on the limit plug 30. The limit plug 30 is slidably connected to the dovetail slide groove 2 31 through the dovetail slider 32. The limit plug block 30 is provided with an operating rod 33, which can facilitate the movement and adjustment of the limit plug block 30. The upper and lower ends of the front side plate 17 are provided with limit slots 34. The limit plug block 30 is provided with a plug-in portion 35, which matches the limit slot 34. When the opening 3 is blocked, the plug-in portion 35 is plugged and limited in the limit slot 34 to limit the movement of the front side plate 17. The overall structural design is compact and reasonable, and the limit member 28 is adopted. When the front baffle plate 7 is moved forward to the desired position (i.e. the baffle plate assembly 7 completely blocks the opening 3), the movement of the front baffle plate 3 is limited by the limit piece 28, thereby effectively ensuring the blocking effect of the opening 3. In combination with the design of the extended stop block 15 at the front end of the upper limit rod 13 and the lower limit rod 14, it is ensured that when the front baffle plate moves forward and contacts the extended stop block 15, the plug-in portion 35 on the limit plug-in block 30 is aligned with the limit slot 34, and then the limit plug-in block 30 is moved along the second dovetail slide groove 31 so that the plug-in portion 35 is matched and inserted into the corresponding limit slot 34 to limit the movement of the limit plate, which is easy to use and operate, and ensures that the front side plate 17 cannot be moved and adjusted after the baffle plate assembly 7 completely blocks the opening 3, thereby ensuring the stability and safety of the opening 3 when blocking. When the opening 3 needs to be exposed, the limit plug-in block 30 is moved along the second dovetail slide groove 31 so that the plug-in portion 35 is completely disengaged from the limit slot 34, and then the baffle plate assembly 7 is adjusted.

[0036] The utility model has a compact and reasonable overall structure, a unique design and strong practicality. The protective cover 5 moves along the sliding track 6 and is adaptively adjusted according to the state of the press. When the press is not working, the heat dissipation slot 4 is blocked to prevent foreign particles from entering the press. When the press is working, the heat dissipation slot 4 is exposed to achieve a balance between heat dissipation and protection. At the same time, the design of the baffle assembly 7 can adjust the state of the opening 3, which is convenient for the operator to adjust according to the actual situation and enhances the safety performance of the press.

[0037] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A closed single-point press, comprising a machine body and wall panels arranged on both sides of the machine body, both of the wall panels are provided with openings and heat dissipation slots, characterized in that: A protective cover is provided on the top of the machine body, and sliding tracks are provided on the two wall panels. The protective cover is slidably connected between the two sliding tracks, and the protective cover moves along the sliding tracks to achieve synchronous exposure or shielding of the heat dissipation slots on the two wall panels; The two wall panels are both provided with baffle assemblies, and the baffle assemblies are adjusted to expose or cover the opening; The protective cover is in a U-shaped structure, and both ends of the protective cover are provided with a dovetail slide groove 1, the dovetail slide groove 1 matches the sliding track, and the protective cover is slidably connected to the sliding track through the dovetail slide groove 1.

2. A closed single-point press according to claim 1, characterized in that: Limiting blocks are arranged at both the front and rear ends of the sliding track. The limiting blocks are matched and clamped on the sliding track, and the limiting blocks are fixedly connected to the sliding track by screws. The two limiting blocks are respectively located at the front and rear sides of the protective cover.

3. A closed single-point press according to claim 1, characterized in that: There is a gap groove between the top of the protective cover and the top surface of the body, and both ends of the protective cover are provided with pull handles.

4. A closed single-point press according to claim 1, characterized in that: An upper limit rod is arranged above the baffle assembly, and a lower limit rod is arranged below the baffle assembly. The baffle assembly is limited between the upper limit rod and the lower limit rod, and the opening is located between the upper limit rod and the lower limit rod. Extension blocks are arranged at the front ends of the upper limit rod and the lower limit rod.

5. A closed single-point press according to claim 4, characterized in that: The upper limit rod and the sliding track located on the same side wall plate are an integrally formed structure, and a transition groove is formed between the upper limit rod and the sliding track, and the end of the protective cover is matched and slidably engaged in the transition groove.

6. A closed single-point press according to claim 4, characterized in that: The baffle assembly includes a front side plate, a corrugated telescopic section and a rear side plate, the corrugated telescopic section is connected and arranged between the front side plate and the rear side plate, the upper and lower ends of the rear side plate are both provided with fixed ends, the two fixed ends are respectively fixed with screws to the upper limit rod and the lower limit rod, the front side plate is slidably limited between the upper limit rod and the lower limit rod, and an operating handle is provided on the front side plate.

7. A closed single-point press according to claim 6, characterized in that: The upper and lower ends of the front side plate are both provided with guide slide blocks, the opposite surfaces of the upper limit rod and the lower limit rod are both provided with guide slide grooves, the guide slide blocks match the guide slide grooves, and the guide slide blocks are slidably engaged in the guide slide grooves.

8. A closed single-point press according to claim 6, characterized in that: Positioning screw holes are provided on the opposite surfaces of the upper limiting rod and the lower limiting rod, and the positioning screw hole is provided on the rear side of the opening. The inner thread of the positioning screw hole is screwed with a limiting column, and the limiting column includes a connecting part and a resisting part of an integrally formed structure. The connecting part is matched and screwed in the positioning screw hole, and the resisting part is exposed on the outside of the positioning screw hole. When the opening is exposed, the limiting column is installed in the positioning screw hole to limit the movement of the front side plate.

9. A closed single-point press according to claim 6, characterized in that: The front ends of the upper limit rod and the lower limit rod are both provided with limit pieces, and the two limit pieces are arranged opposite to each other up and down, and the limit pieces include a guide plate and a limit plug block, and the guide plate is fixedly connected to the upper limit rod and the lower limit rod, and a dovetail slide groove 2 is arranged on the guide plate, and a dovetail slider is arranged on the limit plug block, and the limit plug block is slidably engaged in the dovetail slide groove 2 through the dovetail slider, and an operating rod is arranged on the limit plug block, and limit slots are arranged at both upper and lower ends of the front side plate, and a plug-in portion is arranged on the limit plug block, and the plug-in portion matches the limit slot, and when the opening is blocked, the plug-in portion is plug-in and limited in the limit slot to limit the movement of the front side plate.

Images