A centering clamping mechanism for a piercing rod

Abstract

The utility model relates to a kind of centering clamping mechanisms of bar stock, characteristics are as follows: vertical support is constituted by side plate and fixed base;The guide rail of linear guide pair is vertically fixed in side plate front, and the guide rail is matched with two sliders up and down;Upper slide plate and lower slide plate are respectively fixed with upper slider and lower slider;In upper slide plate lower part and lower slide plate upper part, opposite gear rack part is equipped;Gear can be rotatably supported in gear shaft front part, and gear shaft rear part is fixed in the reserved hole on guide rail;Gear is respectively engaged with the gear rack part on two slide plates on two sides;Upper clamping module and lower clamping module are respectively fixed in upper slide plate front and lower slide plate front;The upper end of upper clamping module is equipped with arc upper concave surface, and the upper end of lower clamping module is equipped with arc lower concave surface, and the space for bar stock clamping between two concave surfaces;Vertically fixed cylinder support that protrudes in front is in side plate top, and opening and closing drive cylinder is vertically installed in cylinder support, and cylinder rod end is fixed with upper slide plate upper part.This mechanism has good bar stock centering retention.

Description

Technical Field

[0001] This utility model relates to the field of processing technology for rod-shaped food products such as gluten skewers, and specifically to a core clamping mechanism for skewered rod materials. Background Technology

[0002] Currently, the entire production process of gluten skewers includes: making gluten sheets, winding the gluten sheets into sticks, steaming the gluten sticks, skewering the steamed gluten sticks, making even cuts, and finally unfolding them. Currently, the skewering, cutting, and unfolding of the gluten sticks are all automated processes. Existing automated gluten skewer processing equipment includes two types: rotary cutters and bi-cutters.

[0003] Among them, the rotary cutting machine has a relatively simple structure, low cost, and high market share. The rotary cutting machine mainly consists of a centering and feeding mechanism, a bar feeding mechanism, a bar centering clamping mechanism, a rotary cutting mechanism, and an unfolding mechanism. The centering clamping mechanism is a key structure located between the skewering mechanism and the rotary cutting mechanism. Its function is to ensure that the axis of the gluten bar remains aligned with the bamboo skewer during the skewering process, avoiding skewer deviation that could lead to subsequent rotary cutting failure or a decrease in product quality. Since the bar material deforms during cooking, the bar centering clamping mechanism can shape the gluten bar material. Therefore, in actual processing, on the one hand, the bar centering clamping mechanism needs to achieve centering clamping of the bar material; on the other hand, it needs to maintain good centering stability over a long period of processing. Existing centering clamping mechanisms use a standard thin-walled cylinder gripper structure. A module is fixed to each of the two grippers of the gripper structure, and the two modules are positioned vertically opposite each other to achieve centering clamping of the gluten bar material.

[0004] Existing bar stock centering clamping mechanisms suffer from poor centering stability during use. After a period of time, they may experience jamming, damage, or centering position shifts, making it impossible to reliably ensure centering during threading and subsequent rotary cutting. Therefore, frequent replacement of the pneumatic gripper structure is necessary, negatively impacting processing quality and efficiency. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by proposing a bar stock centering clamping mechanism that can achieve centering clamping of bar stock, has good centering retention, and is convenient and cost-effective for maintenance and replacement.

[0006] The above-mentioned objective of this utility model is achieved through the following technical solution: A core clamping mechanism for inserting bar stock includes a vertical support, a linear guide pair, an upper slide plate, a lower slide plate, a gear, an upper clamping module, a lower clamping module, and an opening / closing drive cylinder. The vertical support consists of a side plate and a fixing seat fixed to the back of the side plate. The guide rail of the linear guide pair is fixed vertically to the front of the side plate, and an upper slide plate and a lower slide plate are fitted on the guide rail. The upper and lower slide plates are fixedly connected to the upper and lower slide plates, respectively. A rack portion is provided opposite to the lower part of the upper slide plate and the upper part of the lower slide plate. The gear is rotatably supported on the front part of a gear shaft, and the rear part of the gear shaft is inserted and fixed in a reserved hole in the side plate. The gear meshes with the rack portion on the upper slide plate and the rack portion on the lower slide plate on both sides, respectively. The upper clamping module and the lower clamping module are fixed to the front of the upper slide plate and the front of the lower slide plate, respectively. The lower end of the upper clamping module is provided with an arc-shaped upper concave surface, and the upper end of the lower clamping module is provided with an arc-shaped lower concave surface. The upper concave surface and the lower concave surface are arranged opposite to each other, and there is a bar clamping space between the upper concave surface and the lower concave surface. A forward-extending cylinder bracket is vertically fixed to the top of the side plate. The opening and closing drive cylinder is vertically mounted on the cylinder bracket, and the lower cylinder rod end of the opening and closing drive cylinder is fixedly connected to the upper part of the upper slide plate.

[0007] Furthermore, the piercing bar material centering clamping mechanism also includes an upper baffle plate and a lower baffle plate; the upper baffle plate is fixedly installed on the back of the upper clamping module with its lower part extending out, and the lower baffle plate is fixedly installed on the front of the lower slide plate with its upper part extending out through a pad; the lower part of the upper baffle plate and the upper part of the lower baffle plate are arranged front to back aligned.

[0008] Furthermore, the piercing bar material centering clamping mechanism also includes an upper limit post and a lower limit post; there are two upper limit posts and two lower limit posts, with the two upper limit posts vertically fixedly installed on the lower left and right positions of the cylinder bracket with their lower ends flush; the two lower limit posts are vertically fixedly installed on the lower support plate with their upper ends flush, and the lower support plate is vertically fixedly connected to the lower front part of the side plate.

[0009] Moreover, both upper limit posts and both lower limit posts are made of polyurethane.

[0010] The advantages and positive effects of this utility model are as follows: This bar stock centering clamping mechanism achieves centering and clamping of rib rib strands through the closing of the upper and lower clamping modules. Its drive and linear guide employ a separate combined structure, compared to the integrated design of existing thin-walled cylinder grippers. This allows for the use of a linear guide pair structure with high load-bearing capacity and good motion stability, thus achieving better centering and extending the equipment's service life. Furthermore, the separate combined structure of the drive and linear guide in this invention allows for the replacement of individual damaged parts in the event of wear and tear after long-term use, offering advantages such as convenient replacement and low replacement cost. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present invention. Figure 2 This is a front view of the present invention; Figure 3 This is a left view of the present invention; Figure 4 yes Figure 1 A structural diagram excluding the upper and lower clamping modules; Figure 5 This is an exploded perspective view of this utility model. Detailed Implementation

[0012] The structure of this utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that these embodiments are descriptive and not limiting.

[0013] Please refer to the following for a piercing bar stock centering clamping mechanism. Figures 1-5The invention comprises a vertical support 1, a linear guide pair 2, an upper slide plate 5, a lower slide plate 10, a gear 12, an upper clamping module 6, a lower clamping module 9, and an opening / closing drive cylinder 3. The vertical support consists of a side plate 1-1 and a fixing seat 1-2 fixed to the back of the side plate. The fixing seat has bolt holes at its lower part, allowing the threaded bar material centering clamping mechanism to be fixed to the frame of the rotary-cut gluten stringing machine via bolts. The guide rail 2-1 of the linear guide pair is vertically fixed to the front of the side plate, and an upper slide plate 2-2 and a lower slide plate 2-3 are fitted onto the guide rail. The upper and lower slide plates are fixedly connected to the upper and lower slide plates, respectively. A rack portion is provided opposite to each other at the lower part of the upper slide plate and the upper part of the lower slide plate. The gear is rotatably supported at the front of the gear shaft, and the rear part of the gear shaft is inserted and fixed into a pre-drilled hole on the guide rail. The gears mesh with rack portion 5-1 on the upper slide plate and rack portion 10-1 on the lower slide plate on both sides, respectively, to drive the upper and lower slide plates to move towards each other or away from each other. The upper clamping module and the lower clamping module are fixed to the front of the upper slide plate and the front of the lower slide plate, respectively. Specifically, an upper mold mounting plate and a lower mold mounting plate are vertically fixed to the center of the front of both the upper and lower slide plates, and the upper clamping module and the lower clamping module are fixedly connected to the upper mold mounting plate and the lower mold mounting plate, respectively, by screws.

[0014] The upper clamping module has an arc-shaped upper concave surface at its lower end, and the lower clamping module has an arc-shaped lower concave surface at its upper end. The upper and lower concave surfaces are positioned opposite each other and have the same radius, matching the outer diameter of the gluten bar to be processed. To improve the anti-slip effect of clamping the bar, triangular anti-slip grooves are evenly distributed along the circumference in both the upper and lower concave surfaces. The clamping space between the upper and lower concave surfaces allows for centered clamping of the bar when the upper and lower clamping modules move towards each other until the upper concave surface is in complete contact with the upper part of the bar and the lower concave surface is in complete contact with the lower part of the bar. This also completes the shaping of the bar.

[0015] The opening and closing drive cylinder is the driving component for the opening and closing movement of the upper clamping module and the lower clamping module. A forward-extending cylinder bracket 1-3 is vertically fixed on the top of the side plate, and the opening and closing drive cylinder is vertically mounted on the cylinder bracket. The lower cylinder rod end of the opening and closing drive cylinder is fixedly connected to the upper part of the upper slide plate.

[0016] The bar stock clamping mechanism requires bar stock feeding via a bar stock feeding mechanism on the front sides of the upper and lower clamping modules. To ensure smooth bar stock feeding and prevent contamination of the guide rails during feeding, an upper baffle plate 7 and a lower baffle plate 8 are further provided. The upper baffle plate is fixedly installed on the back of the upper clamping module with its lower part extending out, and the lower baffle plate is fixedly installed on the front of the lower slide plate via a pad plate 13 with its upper part extending out relative to the lower clamping module. The lower part of the upper baffle plate and the upper part of the lower baffle plate are aligned front to back, achieving good shielding of the guide rails.

[0017] In addition, to limit the mold opening of the upper and lower clamping modules, upper limit posts 4 and lower limit posts 11 are provided. There are two upper and two lower limit posts, which are vertically fixed to the lower left and right positions of the cylinder bracket with their lower ends flush. The two lower limit posts are vertically fixed to the lower support plate 1-4 with their upper ends flush, and the lower support plate is vertically fixed to the lower front of the side plate. When the cylinder rod of the opening / closing drive cylinder retracts, the upper clamping module moves upward under the drive of the upper sliding plate. Through the meshing of the rack and pinion on the upper sliding plate with the gear, the lower sliding plate is synchronously driven to move the lower clamping module downward. When the upper end of the upper sliding plate contacts the lower ends of the two upper limit posts, the lower end of the lower sliding plate simultaneously contacts the upper ends of the two lower limit posts, thus limiting the mold opening.

[0018] The two upper limit posts and two lower limit posts mentioned above are all made of polyurethane material, which can prevent the skateboard from colliding hard with the corresponding limit posts, thereby avoiding frequent collision damage.

[0019] This utility model's skewer bar material centering clamping mechanism is not only suitable for centering clamping of gluten skewer bars during processing, but also for centering clamping of other bar-shaped materials during processing, and has good applicability.

[0020] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A concentric clamping mechanism for piercing bar stock, characterized in that: The system includes a vertical support, a linear guide pair, an upper slide plate, a lower slide plate, a gear, an upper clamping module, a lower clamping module, and an opening / closing drive cylinder. The vertical support consists of a side plate and a fixing seat fixed to the back of the side plate. The guide rail of the linear guide pair is fixed vertically to the front of the side plate, and an upper slide plate and a lower slide plate are fitted on the guide rail. The upper and lower slide plates are fixedly connected to the upper and lower slide plates, respectively. A rack portion is provided opposite to each other at the lower part of the upper slide plate and the upper part of the lower slide plate. The gear is rotatably supported at the front of the gear shaft, and the rear part of the gear shaft is fixed in a reserved hole on the guide rail. The gear meshes with the rack portion on the upper slide plate and the rack portion on the lower slide plate on both sides, respectively. The upper clamping module and the lower clamping module are fixed to the front of the upper slide plate and the front of the lower slide plate, respectively. The lower end of the upper clamping module is provided with an arc-shaped upper concave surface, and the upper end of the lower clamping module is provided with an arc-shaped lower concave surface. The upper concave surface and the lower concave surface are arranged opposite to each other, and there is a bar clamping space between the upper concave surface and the lower concave surface. A forward-extending cylinder bracket is vertically fixed to the top of the side plate. The opening and closing drive cylinder is vertically mounted on the cylinder bracket, and the lower cylinder rod end of the opening and closing drive cylinder is fixedly connected to the upper part of the upper slide plate.

2. The piercing bar material centering clamping mechanism according to claim 1, characterized in that: The piercing bar material centering clamping mechanism also includes an upper baffle plate and a lower baffle plate; the upper baffle plate is fixedly installed on the back of the upper clamping module with its lower part extending out, and the lower baffle plate is fixedly installed on the front of the lower slide plate with its upper part extending out through a pad; the lower part of the upper baffle plate and the upper part of the lower baffle plate are arranged front to back aligned.

3. The piercing bar material centering clamping mechanism according to claim 1, characterized in that: The piercing bar material centering clamping mechanism also includes an upper limit post and a lower limit post; there are two upper limit posts and two lower limit posts, and the two upper limit posts are vertically fixedly installed on the lower left and right positions of the cylinder bracket with their lower ends flush; the two lower limit posts are vertically fixedly installed on the lower support plate with their upper ends flush, and the lower support plate is vertically fixedly connected to the lower front part of the side plate.

4. The piercing bar material centering clamping mechanism according to claim 3, characterized in that: Both upper limit posts and both lower limit posts are made of polyurethane.

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